62555286 HUAWEI WCDMA RNO Access Procedure Analysis Guidance 20041101 a 2 0

Huawei Technologies Co. Ltd.

Product Version Confidentiality

V100R001 For internal use only

Product Name: WCDMA RNP Total pages: 82

WCDMA RNO Access Procedure

Analysis GuidanceFor internal use only

Prepared by URNP-SANA Date 2003-05-24Reviewed by DateReviewed by DateApproved by Date

Huawei Technologies Co., Ltd.

All rights reserved

WCDMA RNO Access Procedure Analysis Guidance For internal use only

Revision Record

Date Revision Version

Description Author

2003-05-24 1.00 Initial issued Chen Qi

2003-06-03 1.00 Revision based on the review comments Chen Qi

2004-11-01 2.00 Change the version, no content updated. Qinyan

23-4-10 All rights reserved , Total 81


Table of Contents

1Access Procedure........................................................................................................................................71.1Cell Search.............................................................................................................................................7

1.1.1 Step 1: Slot Synchronization.....................................................................................................71.1.2 Step 2: Frame Synchronization and Scrambling Code Group Identification............................71.1.3 Step 3: Cell Primary Scrambling Code Identification...............................................................8

1.2Cell Selection and Cell Reselection.......................................................................................................81.2.1 Cell Selection............................................................................................................................8

1.2.1.1 Triggering occasions:..................................................................................................81.2.1.2 PLMN selection............................................................................................................91.2.1.3 Determing Criteria (S criteria)....................................................................................9

1.2.2 Cell Reselection......................................................................................................................111.2.2.1 Triggering occasions.................................................................................................111.2.2.2 Measurement rules....................................................................................................111.2.2.3 Judging criteria (H criteria and R criteria)...............................................................13

1.3Random Access...................................................................................................................................161.3.1 Random Access Channel........................................................................................................171.3.2 Random Access Procedure.....................................................................................................19

2Signalling Messages of Access Procedure................................................................................................222.1System Information Broadcast.............................................................................................................22

2.1.1 System Information Structure.................................................................................................222.1.2 System Information Broadcast Procedure...............................................................................242.1.3 System Information Update....................................................................................................262.1.4 Description of IEs of SIBs......................................................................................................28

2.1.4.1 MIB:..............................................................................................................................282.1.4.2 SIB1:............................................................................................................................282.1.4.3 SIB2:............................................................................................................................302.1.4.4 SIB3:............................................................................................................................302.1.4.5 SIB5:............................................................................................................................312.1.4.6 SIB7:............................................................................................................................322.1.4.7 SIB11:..........................................................................................................................332.1.4.8 SIB18:..........................................................................................................................33

2.2RRC Connection..................................................................................................................................332.2.1 RRC_CONNECTION_REQUEST.........................................................................................342.2.2 RRC_CONNECTION_SETUP & RRC_CONNECTION_SETUP_COMPLETE.................35

2.2.2.1 UE in the CELL_FACH state after the RRC connection setup...........................362.2.2.2 UE in CELL_DCH state after RRC connection setup...........................................39

3Access Procedure Performance Analysis.................................................................................................433.1Performance Indices of Access Procedure...........................................................................................433.2Relevant Factors Affecting Access Procedure Performance................................................................44

3.2.1 Incorrect Setting of Tcell Affecting Cell Searching Speed.......................................................443.2.2 Unreasonable Neighboring cell List Affecting Cell Selection................................................443.2.3 Doppler Frequency Shift Affecting Access Performance of UE.............................................443.2.4 Traffic Distribution in Cell Effect on Acquisition Probability................................................453.2.5 Different Clutters Affecting Open Loop Power Control.........................................................45

4Analysis Procedure for Access Procedure................................................................................................464.1Step 1: Knowing System Performance................................................................................................464.2Step 2: Ensuring a Stable System........................................................................................................464.3Step 3: Determining Neighboring cell Distribution.............................................................................464.4Step 4: Executing Pilot Auditing.........................................................................................................474.5Step 5: Updating Neighboring cell List...............................................................................................474.6Step 6: Drive Test................................................................................................................................474.7Step 7: Drive test Result Analysis.......................................................................................................47

4.7.1 Analysis Method.....................................................................................................................47



4.7.2 Parameters to be Analyzed and Adjusted in the Access Procedure........................................475Analysis of Problems in Access Procedure..............................................................................................485.1UE Failing in Cell Search....................................................................................................................485.2UE Failing in Cell Access or Receiving RRC Connection Rejection..................................................485.3RNC Failing in Receiving the RRC_CONNECTION_REQ Message Transmitted by UE.................485.4UE Failing in Receiving the RRC_CONNECTION_SETUP Message Transmitted by RNC.............495.5UE Failing in Receiving ACK Message Indicating RRC Connection Completion.............................49



List of Tables

Table 1 S criteria parameter description.....................................................................................................9Table 2 Cell reselection parameter description..........................................................................................15Table 3 Description of the parameters of cell reselection in system information broadcasts...........................15Table 4 Relation between access subchannel and access slot and SFN.....................................................21Table 5 System information block............................................................................................................23Table 6 Parameters to be analyzed and adjusted in the access procedure..................................................49

List of Pictures

Figure 1 Number of RACH access slots and interval between them.............................................................17Figure 2 Structure of random access transmission.....................................................................................18Figure 3 PRACH-AICH timing relation from the view of UE..........................................................................19Figure 4 Definition of access slot set (with the example of uplink/downlink access slot fixed difference p-a

7680chips) 22Figure 5 System information structure.......................................................................................................23Figure 6 RRC signalling connection setup process.....................................................................................33Figure 7 RRC CONNECT REQUEST........................................................................................................35Figure 8 RRC CONNECT SETUP (DCCH is mapped on common channel)..................................................36Figure 9 MappingInfo of SRB1 and SRB2 of the DCCH mapped to the common channel...............................38Figure 10 RRC CONNECT SETUP COMPLETE (DCCH is mapped on the common channel...........................39Figure 11 RRC CONNECT SETUP (DCCH is mapped to the dedicated channel.............................................40Figure 12 MapingInfo of SRB1 and SRB2 of the DCCH mapped to the DCH..................................................42Figure 13 RRC CONNECT SETUP COMPLETE (DCCH is mapped to the DCH)............................................42



WCDMA RNO Access Procedure Analysis Guidance

Key words: Access procedure, cell search, cell selection and reselection, random access

Abstract: This document analyzes in detail the whole access procedure from the view of access

stratum (AS), discusses access performance indices and influence factors, and

presents the analysis process of access procedure in the actual network planning and

the solutions to the possible problems in the access.

Acronym list: Omitted.



1 Access Procedure

UE can run in one of these two basic modes: idle mode and connected mode. After the UE

is powered on, it keeps in idle mode and is differentiated through non AS identities, such as IMSI,

TMSI or P-TMSI. The UTRAN does not store the information of the UE in idle mode, but it can

page all UEs which are powered on and camp on the cell one by one, or page all the UEs in idle

mode in an RNC at the same time. Only after the UE finishes the RRC connection setup will it

enter to connected mode (CELL_FACH or CELL_DCH state) from idle mode. When the RRC

connection is released, it will enter idle mode from connected mode.

Viewing from the AS, access procedure is the procedure of a transition from idle mode to

connected mode of the UE. It includes four basic procedures: cell search, cell system information

broadcast receiving, cell selection and reselection, and random access. Once the UE enters

connected mode, it can carry out such non AS activities as PLMN selection and reselection,

location registration, service application and authentication. This document summarizes all the

steps in the UE access procedure, analyzes the signalling and performance of the whole access

procedure, and discusses the analysis methods for the access procedure and the solutions to the

problems in the drive test based on the analysis.

1.1 Cell Search

UE will search cell according to one of the following procedure:

UE is independent of the information of the RF channel of UTRA carrier frequency. In this

case, UE will scan all frequencies in all UTRA bands to locate a suitable cell to camp on in the

selected PLMN. In each carrier frequency, UE only needs to search the best serving cell.

UE has the stored UTRA carrier frequency information and cell parameter information which

obtained from measurement control information received before, such as primary scrambling

code of cell. In this case, UE will attempt to camp on this cell directly. If it fails, it can only scan all

frequencies in all UTRA bands to locate a suitable cell in the selected PLMN.

The procedure of carrying out cell search is as follows (Of course, a frequency locked first):

1.1.1 Step 1: Slot Synchronization

All primary SCH synchronization codes in the UTRAN are identical and are transmitted in

the former 256 chips of each slot. The synchronization codes of each slot are the same. The UE

can achieve slot synchronization easily by using a matched filter or the similar technology.

1.1.2 Step 2: Frame Synchronization and Scrambling Code Group Identification

Frame synchronization is realized by means of secondary SCH synchronization. There are

16 secondary SCH synchronization codes in all, which are different in each slot. They form 64



groups of code sequences according to different code words in each slot. The 64 groups of code

sequences feature that the result after any cyclic shift is unique. The UE can perform SSC

correlation calculation, FWHT and RS decoding to determine the cell scrambling group and

achieve frame synchronization.

1.1.3 Step 3: Cell Primary Scrambling Code Identification

In the above step the UE got the scrambling code group which contains 8 primary

scrambling codes of the local cell. Then the UE performs correlation calculation based on symbol

until it finds the one with the biggest correlation value, so as to determine the primary scrambling

code. After getting this code word, the UE can read the information of the broadcast channel

since both CPICH and PCCPCH use this scrambling code and their channelization codes are

fixed.

1.2 Cell Selection and Cell Reselection

Once the UE is powered on, it will determine whether the current PLMN is suitable or not

according to the system information after it finds a cell. If the PLMN is suitable, it performs cell

measurement and determines whether the current cell is suitable to camp on according to the S

criteria, this is the cell selection procedure. If the current cell cannot meet the S criteria, it will

start the procedure of PLMN selection and cell reselection (It carries out cell reselection in the

current PLMN first. In case of no suitable cell, it carries out PLMN search and goes to another

PLMN for cell reselection and cell selection), and then performs the adjacent cell measurement.

Thereafter, it sequences the cells under measurement according to the R criteria or H criteria,

and it then can camp on the one meeting the S criteria. Of course, cell selection and reselection

are not always carried out during power-on. This procedure will be triggered by other reasons.

1.2.1 Cell Selection

This section introduces the triggering occasions and cell selection procedure, as well as the

criteria for determining Suitable Cell.

1.2.1.1 Triggering occasions:

The UE initiates cell selection in the following cases:

UE power-on

Returning to idle mode from connected mode

cell information lost in connected mode

Failure in finding cell to camp on normally in the cell reselection based on the cell list

provided in the measurement control system information (TS25.133)

1.2.1.2 PLMN selection



If the UE has obtained the PCCPCH scrambling code from step 3 in Section 1.1, and the

PCCPCH channelization code (SF (ch,256,1)) is known, which is unique in the whole UTRAN,

the UE can read the information of the broadcast channel.

The MIB scheduling information is known, that is, SIB_POS=0 and SIB_REP =8. The UE

can read MIB in the radio frame of the SFN in the value range of (0,8,16, ....). How does UE

acquire SFN? If the SYSTEM INFORMATION message is transmitted on BCH (PCCPCH), the

first field of this message is SFNprime whose value is the initial SFN corresponding to this

transport block. The value range is (0, 2, 4, 6, ..., 4094), but it is (0..2047) after the PER

encoding. In this case, one bit can be saved. Why are the SFN values 0, 2, 4, ...? Because the

BCH TTI is 20ms, including two radio frames. Therefore the step length of the SFNprime field

can be 2 only.

After reading MIB, the UE can determine whether the current PLMN is the one wanted,

because the MIB contains the PLMN identity field. If this is the case, the UE will find other SIBs

and acquire their contents according to the schedulding information of other SIBs in the MIB.

Otherwise, the UE must find another frequency and start this procedure from the beginning,

namely, cell search.

1.2.1.3 Determing Criteria (S criteria)

If the current PLMN is the one wanted, the UE will read SIB3 to acquire Cell selection and

re-selection info, and read Qqualmin, Qrxlevmin and Maximum allowed UL TX power

(UE_TXPWR_MAX_RACH) in the IE of Cell selection and re-selection info for SIB3/4, and

then determine whether the current cell is suitable to camp on according to S criteria.

S criteria:

Srxlev > 0 AND Squal > 0

Where:

Table 1 S criteria parameter description

Parameters Description

Squal It is the quality evaluation value for cell selection, in dBs. It is not suitable

for the TDD and GSM mode. Squal is only used for the FDD cell with the

CPICH Ec/Io as the measurement value.

Srxlev It is the cell selection RX level value, in the unit of dBm.

Qqualmeas It is the cell quality measurement value. The quality of the received signal

is represented by CPICH Ec/Io. This parameter is used for the FDD mode



only.

Qrxlevmeas It is the measurement value of cell receiving level, in the unit of dBm. This

parameter is suitable for CPICH RSCP of the FDD cell, the P-CCPCH

RSCP in the TDD cell and the TXLEV of GSM.

Qqualmin It refers to the minimum quality requirement for cell, in dBs. It is not suitable

for TDD or GSM.

Qrxlevmin It refers to the minimum requirement for cell receiving level, in the unit of

dBm.

Pcompensation It is the max value of (UE_TXPWR_MAX_RACH – P_MAX, 0), in the unit

of dBm.

UE_TXPWR_MAX_RACH It refers to the maximum transmit power of the UE in the RACH of the cell,

in the unit of dBm.

P_MAX It refers to the maximum output power of the UE, indicating the capability of

the UE, in the unit of dBm.

If a cell meets the S criteria, the UE will take this cell as a suitable cell and camp on it, and

then read other system information required. Hereafter, the UE initiates the location registration

procedure.

If the cell does not meet the S criteria, the UE will read SIB11, Measurement control system

information, Intra-frequency measurement system information, Intra-frequency cell info list, cell

info, Primary CPICH info, Reference time difference to cell and Cell Selection and Re-selection

info for SIB11/12. In CPICH info, the UE can get the primary scrambling code. Since the channel

code of CPICH is unique in the whole UTRAN, the UE can measure Qqualmeas and Qrxlevmeas of the

adjacent cell easily (but it requires slot synchronization and frame synchronization) based on the

primary scrambling code and the reference time difference to cell. Moreover, in the IE of Cell

Selection and Re-selection info for SIB11/12, the UE can know the Maximum allowed UL TX

power, Qqualmin and Qrxlevmin of the adjacent cell, so that it can calculate the Squal and

Srxlev of the adjacent cell to determine whether the adjacent cell meets the above selection

criteria or not.

The UE can also read Inter-frequency measurement system information, Inter-frequency cell

info list, frequency info and cell info, and the Cell info is the same as above. The Frequency info

contains UARFCN uplink (Nu) and UARFCN downlink (Nd). Based on all the above

information, the UE can work out Squal and Srxlev of the adjacent cell and determine whether it

meets the S criteria or not.

If the UE cannot find any cell meeting the S criteria, it will consider there is no coverage and

go on with the PLMN selection and reselection procedure.

In idle mode, the UE needs to monitor the signal quality of the current cell and adjacent cell

all the time to select the best serving cell to acquire the service. This is the cell reselection

procedure.



If the UE finds an adjacent cell meeting the selection criteria, it will camp on this cell and

read other system information required. Then the UE will start the random access and initiate the

location registration procedure.

1.2.2 Cell Reselection

The UE will fulfill the following tasks when it is in normal residence state in the UTRAN:

Monitoring PCH and PICH according to indication of system information;

Monitoring relevant system information;

Carrying out cell measurement procedure to provide data for the cell reselection evaluation

procedure;

The following is the introduction to the triggering occasions and measurement rules of cell

reselection, as well as the criteria for cell reselection evaluation.

1.2.2.1 Triggering occasions

The UE initiates cell reselection in the following cases:

Time triggering in idle mode (with the quality measurement value of the current service cell

being smaller than intra-frequency measurement threshold)

When the UE in idle mode cannot find any service cell meeting the S criteria within Nserv

DRXs (in spite of the setting in system information)

When the UE detects that it is in a “non-service area”

1.2.2.2 Measurement rules

Measurement rules for non Hierarchical Cell Structure (HCS) cells

If the cell broadcast system information indicates that the HCS is not adopted, the UE

decides to perform the corresponding measurement according to the following rules: (Note: in the

CPICH Ec/Io measurement status, Squal corresponds to Sx, in the CPICH RSCP measurement

status, Srxlev corresponds to Sx)

Intra-frequency measurement

If Sx>Sintrasearch, UE does not need to perform intra-frequency measurement.

If Sx<=Sintrasearch, UE needs to perform intra-frequency measurement.

If the system information does not contain Sintrasearch, UE needs to perform intra-frequency

measurement for all cases.

Inter-frequency measurement

If Sx>Sintrasearch, UE does not need to perform inter-frequency measurement.

If Sx<=Sintrasearch, UE needs to perform inter-frequency measurement.



If system information does not contain Sintrasearch, UE need to perform inter-frequency

measurement in all cases.

Inter-system measurement

If Sx>SsearchRATm, UE does not need to measure system “m”.

If Sx<=SsearchRATm, UE needs to perform the inter-system measurement to measure system

“m”.

If system information does not contain SsearchRATm, UE needs to perform cell measurement

on system “m” in all cases.

Measurement rules for HCS cells

If the cell broadcast system information indicates that HCS is adopted, the UE decides to

perform the corresponding measurement according to the following rules:

Measurement rules based on intra-frequency and inter-frequency thresholds

IF (Srxlevs<=SsearchHCS) or (IF FDD and Sx<=Sintersearch), THEN

Measure on all intra-frequency cells and inter-frequency cells

ELSE IF (Sx>Sintrasearch)

Measure on all intra-frequency and inter-frequency cells with higher priority than the current

service cell, but not in the case when the UE is in fast moving mode

ELSE

Measue on all intra-frequency and inter-frequency cells of the current hierarchy or higher

priority hierarchy, but not in the case when the UE is in fast moving mode

Measurement rules for intra-frequency and inter-frequency with UE in fast moving mode

Within the time of TCRmax, if the times of cell reselection is greater than NCR, the UE will enter

the high-speed moving mode, in which, it will operate as follows:

1. Execute intra-frequecy and inter-frequency measurements in adjacent cells in the same

hierarchy or lower hierarchy.

2. In cell reselection, assign the intra-frequency and inter-frequency measurements in the

adjacent cell of the lower hierarchy than the current HCS service hierarchy.

3. If the times of cell reselection is not greater than NCRmax within the time of TCRmax, and if the

times does not exceed the NCRmax after the UE carries on the current measurement within the time

of TCRHyst, the UE will returns to the threshold-based measurement.

Inter-system measurements in HCS:

Threshold rules for inter-system measurement

IF (Srxlevs<=SHCS,RATm) or (Squal<=SSearchRATm FDD only), THEN



The UE measures all cells adopting the RATm technology.

ELSE IF (Sx>Slimit,SearchRATm)

It is unnecessary for the UE to measure adjacent cells adopting the RATm technology.

ELSE

The UE measures all adjacent cells adopting the RATm technology no matter what priority

they have in the HCS. But the case of UE in fast moving mode is expected.

Inter-system measurement rules for UE in the fast moving mode

Within the time of TCRmax, if the time of cell reselection is greater than NCR, the UE will enter

the high-speed moving mode, in which it will operate as follows:

1. Execute the system RATm measurements in adjacent cells in the same hierarchy or lower

hierarchy.

2. In cell reselection, assign the RATm measurements in the adjacent cell of the lower

hierarchy than the current HCS service hierarchy.

3. If the time of cell reselection is not greater than NCRmax within the time of TCRmax, and if the

times does not exceed the NCRmax after the UE performs the current measurement within the time

of TCRHyst, the UE will return to the threshold-based measurement.

1.2.2.3 Judging criteria (H criteria and R criteria)

Excecute cell reselection evaluation in these cases:

UE internal triggering, refer to the relevant specifications in 25.133.

Information changes for cell reselection evaluation procedure on the BCCH

The following is the introduction to the H criteria and R criteria suitable for the intra-

frequency/inter-frequency measurement and inter-system measurement:

The H criteria are used for sequencing the hierarchies in the HCS, as the priority reference

for cell reselection.

If the system information indicates HCS is not adopted, the H criteria will be invalid.

The R criteria for cell sequencing are as follows:



Where:

The parameter TEMP_OFFSETn, defined for the H criteria and R criteria, is the offset of the

adjacent cells within the PENALTY_TIMEn. The two parameters of TEMP_OFFSETn and

PENALTY_TIMEn are suitable for the HCS cells only (which are designated in the system

information).

Each adjacent cell is assigned with a timer Tn, which will be reset when the following

conditions are met:

If HCS_PRIOn <> HCS_PRIO and Qmeas_LEV,n > Qhcsn

Or

If HCS_PRIOn = HCS_PRIO and

if the measurement value is set to CPICH RSCP for the FDD cell and the adjacent cells,

Qmap,n > Qmap,s + Qoffset1s,n

if the measurement value is set to CPICH Ec/No for the FDD cell and the adjacent cell

Qmeas_LEV,n > Qmeas_LEV,s + Qoffset2s,n

for other types of cells:

Qmap,n > Qmap,s + Qoffset1s,n

If the above conditions are not met, Tn should stop counting immediately. TQn is valid only

when Tn is counting; otherwise, it should be set to 0.

The cell reselection procedure and Tn are still valid after the UE selects a new cell, unless

the above conditions are not met or the cell is not the adjacent cell of the selected cell any more.

However, the system information of the new system after the new cell is selected should be used

to evaluate the above criteria.



Table 2 Cell reselection parameter description


Sn The cell selection value of adjacent cells (db)

Qmap,s It is the quality mapping value of the service cell, including the CPICH RSCP

and CPICH Ec/No in the FDD mode, CPICH P-CCPCH RSCP in the TDD

mode and the RXLEV of the GSM. The parameters of the mapping functions

are provided by the cell_selection_and_cell_quality_measure section of

the system information.

Qmap,n It is the quality mapping value of the service cell, including the CPICH RSCP

and CPICH Ec/No in the FDD mode, CPICH P-CCPCH RSCP in the TDD

mode and the RXLEV of the GSM. The parameters of the mapping functions

are provided by the cell_selection_and_cell_quality_measure section of

the system information.

Qmeas_lev It is the quality value of the signal received provided in the

cell_selection_and_cell_quality_measure section of the system

information. It is represented by in CPICH RSCP the FDD mode, and P-

CCPCH RSCP in the TDD mode and RXLEV in the GSM.

The UE sequences these cells meeting the S criteria according to the R criteria:

The cells with the highest HCS_PRIO meeting the H criteria, that is, H is greater than or

equal to 0. This is not for the case when the UE is in the fast moving mode.

If HCS is not considered, or no cell meets the H criteria, the UE will sequence all cells.

In all the cases, a cell will be selected only when it meets all the criteria above within the

time of Treselect.

Table 3 Description of the parameters of cell reselection in system information broadcasts


Qoffset1s,n It is the offset between two cells, used for the CPICH RSCP in the TDD,

GSM and FDD mode.

Qoffset2s,n It is the offset between two cells, used for the CPICH Ec/No in the TDD,

GSM and FDD mode.

Qhyst1s It is the hysteresis value, used for the CPICH RSCP in the TDD, GSM and

FDD mode.

Qhyst2 It is the hysteresis value, used for the CPICH Ec/No in the TDD, GSM and

FDD mode.

HCS_PRIOs, HCS_PRIO It is the priority assigned to service cell and adjacent cell, in the value range

of (0-7).

Qhcss, Qhcsn It is the quality threshold of the service cell and adjacent cell in the cell

reselection in HCS.

Qqualmin It is the minimum quality standard designated to the cell, in the unit of db. It



is used for CPICH Ec/No of FDD only.

Qrxlevmin It is the minimum receiving level, in the unit of dBm,

TEMPORARY_OFFSET1n

PENALTY_TIMEn It refers the time duration for which the TEMPORARY_OFFSETn is applied

for a neighbouring cell.

TEMPORARY_OFFSET1n It is the offset of applying the H and R criteria within the penaltiy time, used

for the CPICH RSCP in the TDD, GSM and FDD mode.

TEMPORARY_OFFSET2n It is the offset of applying the H and R criteria within the penalty time, used

for the CPICH Ec/No in the FDD mode.

TCRmax It indicates the maximum time spent for cell reselection.

NCR It is the maximum times of cell reselection

TCRmaxHyst It refers to the hysteresis time for the UE resumes to the normal mode from

the high-speed moving mode.

Treselections It indicates the value of the cell reselection counter (for designating the

hysteresis time for cell reselection)

SsearchHCS It specifies the threshold for the UE to perform measurement on the adjacent

cell when HCS is adopted.

SsearchRAT 1 - SsearchRAT k It specifies the threshold for the startup of the measurement on the system

RATm.

SHCS,RATm It specifies the threshold for the UE to perform inter-system measurement on

the adjacent cell when HCS is adopted.

Sintrasearch It specifies the threshold for intra-frequency measurement. It is used in the

HCS measurement criteria.

Sintersearch It specifies the threshold for inter-frequency measurement. It is used in the

HCS measurement criteria.

Slimit,SearchRATm It indicates the measurement criteria for cell reselection in HCS. It is used to

designate the time when the UE starts up the inter-system measurement

(RATm) on the adjacent cell.

1.3 Random Access

Random access procedure is the procedure when an MS requests access to the system,

receives the response of the system and is allocated with dedicated channel. (Note: If the RRC

connection is set up on the common control channel (CCCH), the system does not need to

allocate DCCH. If the RRC connection is set up on the dedicated control channel (DCCH), the

system needs to allocate DCCH). This procedure is attached once the MS is powered on, and

will be detached when the MS is powered off, location area update, routing area update, and

signalling connection setup process for executing any service. The 3GPP 25.211 protocol

defines the random access channel (RACH) and physical random access channel (PRACH), as

well as the frame structure of the access channel and physical-layer timing relation. The 3GPP



25.213 defines the spread spectrum demodulation of the domudulation and message parts (data

and control) of the access channel preamble code, as well as the preamble code, scrambling

code and spread code. The 3GPP 25.214 protocol defines the access procedure. The following

are the further description of these contents.

1.3.1 Random Access Channel

RACH, an uplink common transport channel, maps to PRACH, which is an uplink physical

common channel. RACH is always received by NodeB in the whole cell. It features collision and

adopting open loop power control.

The RACH transmission is based on a Slotted ALOHA approach with fast acquisition

indication (AI). The MS can start the transmission at a pre-defined time offset, which is

represented by an access slot. Two 10-ms radio frames constitute a 20ms access frame, which

are divided into 15 access slots, with an interval of 5120 chips (with the time of 1.332ms). Figure

1 shows the timing information and AI on the access slot, as well as the number of access slots

and the interval between them. The high-layer signalling indicates the access slot whose

information is available in the current cell.

#0 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14

5120 chips

radio frame: 10 ms radio frame: 10 ms

Access slot

Random Access Transmission




Figure 1 Number of RACH access slots and interval between them

The user can initiate random access transmission at the start time of each access slot.

Figure 2 shows the structure of the random access transmission, which is composed of one or

more message parts of 10ms or 20ms in length.



Message partPreamble

4096 chips10 ms (one radio frame)

Preamble Preamble

Message partPreamble

4096 chips 20 ms (two radio frames)

Preamble Preamble

Figure 2 Structure of random access transmission

The preamble of the random access is 4096 chips, including 256 repetitions of a 16-chip

signature. There are 16 different signatures in all.

The 10-ms message of random access is divided into 15 slots, each of which is 2560 chips

in length. Each slot includes two parts, one is data part, which the RACH transport channel maps

to; the other is the control part, which is used to transport the L1 control information. The data

and control parts are transmitted simultaneously in code multiplexing mode. A 10-ms message

part is composed of one radio frame, and a 20-ms message part is composed of two continuous

10-ms radio frames. The length of the message part can be determined by the signature and/or

access slot used. This is configured by the high layer.

The data part includes 10*2k bits, where, k=0, 1, 2, 3. The data part of the message

corresponds to the spread factors of 256, 128, 64 and 32.

The control part includes eight known pilot bits (used for supporting the channel estimation

for correlation detection) and two TFCI bits. For the message control part, this corresponds to the

spread factor of 256. For the pilot bit pattern, refer to the 3GPP TS 25.211 protocol. The total

number of TFCI bits in the access message is 152, that is 30. The TFCI value corresponds to

the transport format of the current random access message. When the PRACH message part is

20ms in length, the TFCI will repeat in the second radio frame.

The downlink AICH is divided into downlink access slots, each of which is 5120 chips in

length. The downlink access slot is aligned with the PCCPCH in terms of time. The uplink

PRACH is divided into uplink access slots, each of which is 5120 chips. The nth uplink access

slot are transported the p-a chips before the UE receives the nth downlink access slot (where

n=0, 1, …14). The downlink AI is transmitted at the beginning of the downlink access slot.

Similarly, the preamble and message part of the uplink RACH are transmitted at the beginning of

the uplink access slot. Figure 3 shows the PRACH/AICH timing relation.



One access slot

p-a

p-m

p-p

Pre-amble

Pre-amble Message part

Acq.Ind.

AICH accessslots RX at UE

PRACH accessslots TX at UE

Figure 3 PRACH-AICH timing relation from the view of UE

The preamble-preamble code distance p-p should be greater than or equal to the minimum

preamble-preamble code distance p-p,min, that is p-p p-p,min.

The distance from the preamble to the AI p-a, and the distance from the preamble to the

message p-m are as shown below:

When AICH_Transmission_Timing is set to 0, then

p-p,min = 15360 chips (3 access slots)

p-a = 7680 chips

p-m = 15360 chips (3 access slots)

When AICH_Transmission_Timing is set to 1, then

p-p,min = 20480 chips (4 access slots)

p-a = 12800 chips

p-m = 20480 chips (4 access slots)

The parameter AICH_Transmission_Timing is provided through the signalling mode.

1.3.2 Random Access Procedure

After the physical layer of the UE receives the PHY-DATA-REQ primitive request of the

MAC sublayer, the UE will start the physical random access procedure. Refer to the 3GPP TS

25.321 protocol.

Before the physical random access procedure is initiated, the layer 1 (physical layer) of the

UE should be able to receive the following system information from the high layer of the UE

(RRC layer):

Scrambling code of the preamble part

Length of the message part, 10ms or 20ms

The value of AICH_Transmission Timing (0 or 1)

The signature set and RACH access subchannel group set assigned for the SN of each ASC

(access subchannel)

The parameter of Power_Ramp_Step (integer > 0)



The parameter of Preamble_Retrans_Max (integer > 0)

The parameter of Preamble_Initial_Power

The power used for the last preamble transmission and the offset of the transmission power

of the control part in the random access message P p-m = Pmessage-control – Ppreamble, in the unit of

dB.

TFS parameters, including the power offset of the data part and control part of the random

access message for every transmission format.

Please note that the above parameters may be updated by the high layer before the physical

random access procedure is initiated every time.

In addition, before the physical random access procedure is initiated, layer 1 should be able

to receive the following information from the MAC layer:

The transmission format used for the PRACH message part

ASC transmitted by PRACH

Data to be transmitted (TBS)

When initiating the physical random access, the UE needs to operate according to the

following procedure:

Step 1: It determines the available RACH access subchannel set according to the

designated ASC and the available uplink access slot set in the next complete access slot set

(SFN mod 2 = 0 and SFN mod 2 = 1, where the former one is called access slot set 1, and the

latter one is called access slot set 2), and then selects one uplink access slot randomly. The rule

for random selection is equal probability selection. If no access slot set is available currently, it

selects one in the next access slot set at random.

Step 2: It selects the signature randomly from the signature set according to the designated

ASC. The rules for random selection are equal probability selection.

Step 3: It sets the initial value of the preamble retransmission counter to

Preamble_Retrans_Max.

Step 4: It sets the parameter Commanded Preamble Power to Preamble_Initial_Power.

Step 5: If the value of Commanded Preamble Power exceeds the largest allowed value, it

will set the transmission power of the preamble to the maximum allowed transmission power. If

the value of Commanded Preamble Power is less than the minimum value required (specified

in the 3GPP TS 25.101 protocol), it will set the transmission power of the preamble to the current

calculation value (which may be greater than, less than or equal to the Commanded Preamble

Power). Otherwise, it sets the transmission power of preamble to Commanded Preamble

Power. It transmits the preamble by using the selected uplink access slot, signature and

preamble transmission power.



Step 6: It waits for the NodeB to return an acknowledgement for the used signature. If the

UE cannot detect the AI of +1 or -1 on the downlink access slot with the same number as the

uplink access slot used for transmitting preamble, it will select an available uplink access slot at

random. Then it adds Commanded Preamble Power according to the power ramp step P p-m =

Pmessage-control – Ppreamble, and then subtract the preamble reset counter by 1. If Commanded

Preamble Power is greater than the maximum power threshold 6dB, the UE will report the status

of layer 1 (No ack on AICH) to the MAC layer, and then exit the physical random access

procedure. Thereafter, if the value of the retransmission counter is greater than 0, repeat Step 6;

otherwise, report the status of layer 1 (No ack on AICH) to the MAC layer, and exit the physical

random access procedure

Step 7: If the received value of AI for UE is -1, it will report the status of layer 1 (No ack on

AICH) to the MAC layer, and then exit the physical random access procedure.

Step 8: If the received value of AI for UE is +1, it will transmit the random access message

part three or four uplink access slots after the last time of preamble transmission according to the

value of AICH_Transmission_Timing. The transmission power of the control part of the random

access message should be P p-m higher than the power for the last preamble transmission. For

that of the data part, refer to the protocol.

From the view of the operation flow of the random access procedure, the UE needs to

transmit preamble before initiating an access, and then waits for the acknowledgement from

NodeB. Then the NodeB detects the preamble transmitted by the UE in each uplink slot. It will

return an AI through the AICH channel if it finds a preamble. The UE detects AI in a specific

downlink access slot after transmitting the preamble. If it receives a permission AI, it continues to

transmit the message part, so as to complete a physical random access. If it does not receive

any AI, the UE will repeat the handshake process of “transmit preamble–detect AI” for N times

(preset), and start transmitting the message part, to complete a physical random access. If the

UE receives a rejection AI, it will exit this random access procedure, and then report the status.

The message of the random access message part includes the flag information of the UE, the

service type requested, and so on.

The following shows the access subchannels and the definitions of access slot sets, with the

following example:

Table 4 Relation between access subchannel and access slot and SFN

SFN modulo 8 of

corresponding P-

CCPCH frame

Subchannel number

0 1 2 3 4 5 6 7 8 9 10 11

0 0 1 2 3 4 5 6 7

1 12 13 14 8 9 10 11

2 0 1 2 3 4 5 6 7

3 9 10 11 12 13 14 8



4 6 7 0 1 2 3 4 5

5 8 9 10 11 12 13 14

6 3 4 5 6 7 0 1 2

7 8 9 10 11 12 13 14

Figure 4 Definition of access slot set (with the example of uplink/downlink access slot fixed difference p-a 7680chips)

2 Signalling Messages of Access Procedure

Before the access procedure, the UE needs to receive the cell system information broadcast

message of the UTRAN. The following is the introduction to the meanings and applications of

these signalling messages and information elements (IE).

2.1 System Information Broadcast

2.1.1 System Information Structure

Figure 5 System information structure



System IEs are broadcast in system information block (SIB). The system IEs with the same

character are combined to an SIB. Different SIBs may have different characters, for example, the

periodical repetition rate and the requirement on SIB re-read of the UE.

The system information is organized as a tree, as shown in Figure 5. As the reference of

large numbers of SIBs in a cell, the primary information block contains the sequence of these

SIBs. The upper level SIB functions the same on the blocks of the lower level. The referenced

SIB must have the same function range and update mechanism with the SIBs of the upper level.

Some SIBs may be present for several times with different contents. In this case, the

sequence for each present of the SIBs must be provided. At presently, this is only suitable for the

SIB type 16.

The following table shows the description of each system information block.

Table 5 System information block

SIB RRC Protocol

State

Description Size

[TTI]

1 Idle mode Contains the NAS information and the information of the timers and

counters of the UE in idle mode and connected mode

1

2 Connected mode Contains the URA identity and the periodical cell updating and URA

updating information

1

3 Idle mode Contains the parameters of cell selection and reselection read by the

UE in idle mode

1

4 Connected mode Contains the parameters of cell selection and reselection read by the

UE in connected mode

(1)

5 Idle mode Contains the configuration parameters of the common channel read by

the UE in idle mode

3

6 Connected mode Contains the configuration parameters of the common channel and

common physical channel read by the UE in connected mode

(3)

7 Idle mode

Connected mode

Contains the parameters of fast variance (UL-Interference and dynamic

persistence level)

0.5

8 Connected mode

(FDD only)

Contains the static CPCH information 1.5

9 Connected mode

(FDD only)

Contains the CPCH information 0.5

10 CELL_DCH

(FDD only)

Contains the Dynamic Resource Allocation Control (DRAC)

procedure information

-

11 Idle mode Contains the adjacent cell list and measurement control information

read by the UE in idle mode

1-10

12 Connected mode Contains the adjacent cell list and measurement control information

read by the UE in connected mode

(1-10)

13 Idle mode

Connected mode

Contains the ANSI-41 information 1



SIB RRC Protocol

State

Description Size

[TTI]

13-

1

Idle mode

Connected mode

Contains the ANSI-41 RAND information 0.5

13-

2

Idle mode

Connected mode

Contains ANSI-41 user zone ID 0.5

13-

3

Idle mode

Connected mode

Contains the ANSI-41 private neighbour list 0.5

13-

4

Idle mode

Connected mode

Contains ANSI-41 service redirect information 0.5

14 Idle mode

Connected mode

(TDD only)

Contains the uplink outloop function control information read by the UE

in the idle and connected mode

-

15 Idle mode

Connected mode

Contains the LCS information supported 1

16 Idle mode

Connected mode

Contains the RB used for handover and the parameters of the transport

channel and physical channel read and stored by the UE in the idle and

connected modes.

3

18 Idle mode

Connected mode

Contains the PLMN ID of the Neighboring cell

2.1.2 System Information Broadcast Procedure

According to the protocol, the system information message transmits the SIB on the BCCH,

and BCCH can be mapped to the BCH or FACH, so the size of the system information message

should be in accord with the size of the BCH or FACH. The RRC layer is responsible for the

cascading (when the size of the SIB is less than that of the transport block of the BCH or FACH)

and segmentation of the SIB (when the size of the SIB is greater than that of the transport block

of the BCH or FACH). The UE in the CELL_PCH/URA_PCH/CELL_FACH state reads the system

information on the BCH transport channel. If the UE is powered off, all the SIBs stored previously

will become invalid after the cell or PLMN reselection, and the UE should re-read and store them.

For the SIB with the value tag, the UE should update them according to Section 8.1.1.4.1 and

Section 8.1.1.4.2 in the 25.331 protocol; for the SIBs with expiration timer, the UE should update

them according to Section 8.1.1.4.2 of the 25.331 protocol. If the PAGING TYPE 1 message

received by the UE indicates system information change, the UE should re-read the system

information.

There is no reading when the UE is in the CELL_DCH state. The UTRAN instructs the UE in

the CELL_FACH state to read through the system information update indication, and instructs

the UE in the CELL_PCH state to read through paging.

The features of the BCH are: 1) It has downlink only; 2) the fixed rate is low; 3) it requires full

cell coverage. The broadcast on the BCH can use the system information on NodeB, and the



information is updated frequently (every 20 to 100ms, for example, the uplink interference value

of the cell). For the system information come from CRNC, the update frequency is much lower

than the broadcast repetition frequency on the BCH.

The PCCPCH is used to bear the BCH transport channel as a downlink physical channel,

with the fixed rate of 30k bps, and the SF of 256. Its transmission is stopped in the former 256

chips of each slot, which are used to transmit PSCH and SSCH. That is, the PCCPCH, PSCH

and SSCH are transmitted in time division mode.

As the PCCPCH transmits the cell SFN, it can act as the direct frame timing reference of the

downlink and the indirect frame timing reference of the uplink for all the physical channels. All the

channels of SCH (primary and secondary), CPICH (primary and secondary), PCCPCH and

PDSCH have the same frame timing. The frame timimg of the SCCPCH may vary with different

SCCPCH, but the difference between it and the frame timing of the PCCPCH is the multiples (0

to 149 times) of the 256 chips. The frame timing of the PICH is 7680 chips ahead of that of the

SCCPCH. Thus the UE can read to see whether there is PI on the PICH. If so, it can read the

corresponding PI from the subsequent SCCPCH (PCH). The frame timing of the DPCH may vary

with the different DPCHs. But the difference between it and the frame timing of the PCCPCH is

the multiples of 256 chips (0 to 149 times).

The system information broadcast procedure is used to broadcast system information to the

UE in the idle or connected mode. The system information is delivered on the BCCH. The BCCH

can be mapped to the BCH or FACH common transport channel. The purpose of system

information update is the NodeB can apply the scheduling and the system information segment

contents on the BCCH. The NodeB should also be consistent with the MIB/SB/SIB in this

message on the BCCH. If the SYSTEM INFORMATION UPDATE REQUEST message contains

the BCCH Modification Time IE, NodeB will apply the BCCH scheduling information (includng

the combination of IB adding, reducing and content updating) for the first time according to the

value of the SFN set by this IE. Otherwise, NodeB will update the scheduling information on the

BCCH as much as possible. Refer to the message analysis in Section 5.

2.1.3 System Information Update

The UE and the UTRAN may use different mechanisms for SIB update. If the SIB contains a

value tag, the UTRAN should indicate the time to change an IE. This time is determined by

means of changing the value tag. Even though the value tag is not changed, the UE should

consider that the SIB will become invalid six hours after it is received. In addition, such SIBs

exist, in which the IEs are changed too frequently to indicate the change with the value tag. Such

SIBs are not related to the value tag in the primary information block or the value tag of the

upper-level SIB. The stored SIB should be taken as invalid after the UE is powered off.

Modifying SIB with value tag



When the system information is changed, the UTRAN should execute the following

operations to indicate the UE of these system information changes.

1. It updates the system information in the SIB

2. It updates the upper-level SIB with the “value tag” in the updated SIB if the updated

SIB is connected to the upper-level SIB

3. It updates the primary information block with the “value tag” in the updated SIB or the

upper-level SIB, and changing the value tag in the primary information block

4. It transmits the new primary information block on the BCH mapped by the BCCH, and

then the updated SIB

5. It transmits the new primary information block on the FACH mapped by the BCCH, so

that all the UEs in the CALL_FACH state can get the information. The UTRAN can

retransmit the new primary information block on the FACH so as to increase the

correct receiving rate of this information.

6. It transmits the PAGING TYPE 1 message on the PCCH, so that the UEs in the idle or

connected (CELL_PCH or URA_PCH) mode can get the information. In the IE of

BCCH Modifacation Information in the PAGING TYPE 1 message, the UTRAN should

indicate the new value tag for the primary information block. The PAGING TYPE 1

message should be transmitted in all paging occasions. For the BCCH Modification

Information on the PCH, the system information should not be changed to frequently,

but should coordinate with the maximum DRX cycle supported by the UTRAN.

7. After receiving the PAGING TYPE 1 message, the UE should check the “value tag” of

the primary information block indicated in the IE of BCCH Modification Information. If it

is different from the value stored in the VALUE_TAG, and then read the new primary

information block according to the present sequence information.

8. After the UE receives the new primary information block on the BCH or FACH mapped

by the BCCH, it should store the new “value tag” (transmitted in the VALUE_TAG

variable in the primary information block, and then check the IE of value tag of all SIBs

used by the UE. If there is change, the UE should read this SIB. After receiving the

modified SIB, the UE executes the operations specified in Section 8.1.1.5 of the

25.331 protocol.

Modifying system information without value tag

When the UE knows that the SIB contains no value tag, it should start up a timer, whose

value equals to the repetition cycle of the SIB (SIB_REP). When the timer expires, the

information transmitted by this SIB should be taken as invalid. Before using the value contained

in the system IE, the UE should get the new SIB. After receiving the modified SIB, the UE

executes the operations specified in Section 8.1.1.5 of the 25.331 protocol.

Time critical modification of SIB



For the modification of some system IEs (for example, re-configuration of the channel), it is

essential to know the time of the modification. In this case, the UTRAN executes the following

operations to notify the UE of these changes:

1. It transmits the PAGING TYPE 1 message on the PCCH, so that the UE in the CELL_PCH

and URA_PCH state can acquire the information. In the BCCH Modification Information, the

UTRAN should indicate the change time and the new value tag suitable for the primary

information block after the change. The PAGING TYPE 1 message should be transmitted in

all paging occasions (it is the continuous 256 frames at present (with the paging cycle of 2^8

). (The PIs of the CN will be discarded in this case).

2. It transmits the SYSTEM INFORMATION CHANGE INDICATION message on the FACH

mapped by the BCCH, so that all the UEs in the CELL_FACH state can acquire the

information. In the IE of BCCH Modification Information, the UTRAN should indicate

change time and the new value tag suitable for the primary information block after the

change. The UTRAN can repeat transmitting the SYSTEM INFORMATION CHANGE

INDICATION message on the FACH so as to increase the correct receiving rate of this

information.

3. The UE updates the system information, and changes the “value tag” in the corresponding

SIB.

4. If the updated SIB is connected to the upper-level SIB, the UE updates the upper-level SIB

with the “value tag” in the updated SIB.

5. It updates the new information block with the “value tag” in the updated SIB or the upper-

level SIB, and changes the “value tag” of the primary information block.

6. When the designated time comes, it transmits the new primary information block on the BCH

mapped by the BCCH, and then transmits the updated SIB on the BCCH.

7. After receiving the PAGING TYPE 1 or SYSTEM INFORMATION CHANGE INDICATION

message, the UE should wait until the time indicated by the IE BCCH Modification

Information comes, and then read the new primary information block.

8. When receiving the new primary information block, the UE should store the “value tag” of the

new primary information block, and check the IE of value tag of all SIBs used by the UE. If it

is different from the value stored in the VALUE_TAG, the UE will read corresponding SIB.

After receiving the modified SIB, the UE executes the operations specified in Section 8.1.1.5

of the 25.331 protocol.

9. If the UE cannot find the primary information block, it considers that the physical re-

configuration has happened, and then carries out new cell searching.

2.1.4 Description of IEs of SIBs

Here only provides the description of the IEs of the SIBs realized by RNC V1.2.

2.1.4.1 MIB:



By comparing the latest MIB tag, the UE can determine whether to update the MIB

information stored previously.

MIB contains some basic information of the access network, such as PLMN information,

MNC and MCC.

It contains the scheduling information of other SIBs (SB1, SB2 and SIB1). Where, the

scheduling information of SB1 and SB2 must be put in the MIB, and that of others can be put

in SB1 and SB2.

2.1.4.2 SIB1:

NAS information

CN DOMAIN information:

T3212: CS domain periodical location update, once every 1/10 hour;

T3312: SGSN MM periodical route update;

NMO: no GS information between SGSN and MSC/VLR, with NMO being 1;

DRX: it is equal to 2^K * PBP, with K being the DRX cycle length coefficient of the CN

domain, and PBP being the number of paging block cycles, and FDD being 1.

The timer and counter constants of the UE in connected mode: the timer constant used for

the UE capability information (T304), the timer constant used for RRC connection release

completion (T308), the timer constant used for cell reselection in connected mode (T309),

the timer constant used for transmitting the PUSCH capability request (T310), the timer

constant used for selecting PUSCH allocation hangup in the physical common shared

channel allocation (T311), the timer constant used for out-of-sync. Indication in connected

mode (T313), the timer constant used for indicating radio link failure (T314 and T315).

Various timer constants of the UE in idle mode: The timer constant used for RRC connection

setup (T300) and the synchronization indication timer constant used for creating dedicated

channel (T312).

Note: [1] In this version of protocol, the UE does not use T301 or N301. The UE starts the

timer T302 after transmitting CELL UPT/URA UPT, and stops this timer after the receiving

CONFIRM. Once the timer expires, and if V302<=N302, the UE will retransmit CELL/UPT/URA

UPT.

[2] The UE starts the timer T304 after transmitting UE CAPABILIRY INFO, and stops this

timer after receiving CONFIRM. Once the timer expires, and if V304<=N304, the UE will initialize

cell updating procedure.

[3] The UE in the CELL_FACH/URA_PCH/CELL_PCH state starts T304 (or T305) after

receiving CELL UPT/ URA UPT, and stops this timer after it enters other state. Once the timer

expires and if T307 is not initiated, and the UE detects it is in the service area, it will transmit

CELL UPT; otherwise, the UE will start T307 if it is not initiated



[4] The UE starts the timer T307 when T305 expires and the UE detects it is out of the

service area, and tops T307 when it enters the service area again. Once the T307 expires, the

UE enters the idle state. The UE starts the T308 after transmitting RRC REL COMPLETE, and

stops T308 after the receiving CONFIRM.

[5] Once the timer expires, and if V308<=N308, the UE will transmit RRC REL COMPLETE;

otherwise, it will enter idle mode.

The UE starts the timer T309 after reselecting a cell belonging to other radio access network

or receiving the CELL CHANGE ORDER FROM UTRAN message in connected mode, and

stops this timer after setting up connection in a cell successfully. Once the timer expires, the UE

will keep connecting with the UTRAN.

[7] The UE starts the timer T310 after transmitting PUSCH CAPACTITY REQUEST, and

stops this timer after receiving CHANNEL ALLOCATION. Once the timer expires, and if

V310<=N310, the UE will transmit PUSCH CAPACTITY REQUEST; otherwise, the procedure

will end.

[8] The UE starts the timer T311 after receiving PHYSICAL SHARED CHANNEL

ALLOCAION, with the item of PUSCH allocation set to PUSCH allocation pending. If the item

of PUSCH allocation is set to PUSCH allocation assignment, and the timer expires, the UE

will retransmit the PUSCH capability request procedure.

[9] The UE starts the timer T312 after setting up DCH, and stops this timer after detecting

N312 (the maximum number of continuous in-sync indications received from L1) continuous in-

sync indications. If the timer expires, it means out-of-sync.

[10] The UE starts the timer T313 after tdetecting N313 (the maximum number of continuous

out-of-sync indications received from L1) continuous out-of-sync indications, and stops this timer

after detecting N315 (the maximum number of continuous in-sync indications received from L1

during the timing period of T313) continuous synchronization indications. Once the timer expires,

the radio link will be disconnected.

[11] The UE starts T314 only when the radio link failure criteria are met and the radio bearer

associated with the T314 timer exists, and stops this timer when the cell updating procedure is

completed. For the case of timeout, refer to Section 8.3.1.13 of the 25.331 protocol. According to

the protocol, when the cell updating procedure is initiated for RRC connection re-setup, and if

either T314 or T315 expires, and T302 is not running, it is necessary to release the RAB related

to T314/T315. However, RR does not support the crossing flow for the cell updating and RAB

configuration releasing, so T314/T315 should be set to 0 or a value greater than T302N302.

[12] The timer T316 is initiated when the UE in the URA_PCH/CELL_PCH detects it is out of

the service area, and this timer is stopped when the UE detects it enters the service area again.

If the UE is in the service area, it initiates the cell updating procedure, and the timer T317 is



initiated. When the UE detects the state is transited to CELL_FACH after entering the service

area and initiates the cell updating procedure, the UE will enter idle mode once T317 expires.

[13] The UE starts the timer after transmitting RRC REQ, and stops this timer after receiving

RRC CON SETUP. Once the timer expires, and if V300<=N300, the UE will retransmit RRC

REQ.

2.1.4.3 SIB2:

URA Identity List

2.1.4.4 SIB3:

CellIDentity

CellSelectReselectInfo: mappingInfo, cellSelectQualityMeasure, cSIntraSearchl,

cSInterSearch, Q-QualMin, Q-RxlevMin, RAT-FDD-InfoList, MaxAllowedUL-TX-Power, Q-

Hyst-S, T-Reselection-S and HCS-ServingCellInformation.

CellAccessRestriction

Note: (The following is the description of the functions of this IE on the cell selection and

reselection, cell access and emergency call.)

1. Cell state. There are three types of IEs that can indicate the current state of this cell in

the system information of CELL ACCESS RESTRICTION: Cell barred (in the IE type of barred or

not barred), Cell Reserved for operator use (in the IE Type of reserved or not reserved, Cell

Reserved for SoLSA exclusive use (in the IE type of reserved or not reserved).

2. Cell selection and reselection. When all the above three IEs are in the NOT_XXX state,

this cell can be selected in the cell selection and reselection in the connection and idle mode.

When the cell is in the not barred or not reserved for operator use or reserved for SoLSA state,

the UE that does not support SoLSA cannot access this cell. When the cell is in the state of not

barred or reserved for operator use, the users with the AC level of 11 to 15 in the home PLMN

can access this cell. The users with the AC level of 0 to 10 cannot access this cell. When the cell

is in the barred state, the UE cannot select this cell, but it provides emergency call service in

general cases, unless this cell in the IE of Access class barred list indicates this cell prohibited

emergency call. The UE ignores the IE of Cell Reserved for SoLSA. The UE can select other

cells according to the following rules:

[1] If the IE of Intra-frequency cell re-selection indicator in the Cell Access Restrict

section is ALLOWED, and if the cell reselection condition is met, the UE can select another intra-

frequency cell.

[2] If this UE camps on other cells, it will delete this cell from the neighboring cell set within

the time of Tarred. The parameter of Tarred and the cell state are provided in the system

information of Cell Access Restriction.



[3] If the UE does not select other cells and this cell is still the best serving cell, the UE will

check the state of this cell within the time of Tarred.

[4] If the IE of Intra-frequency cell re-selection indicator in the Cell Access Restrict

section is not allowed, even if the cell reselection condition is met, the UE cannot select the best

serving cell with the same frequency with the barred cell. The emergency call is the exception,

that is, the emergency call service ignores this IE.

[5] If this cell is still the besting service cell, the UE checks the state of this cell within the

Tarred time.

3. Access control. The UEs that camp on this cell will not detect the access level or the

related cell access restriction information. That is, the UE will not discard the cell that it camps

on, as it bars other UEs of all levels from accessing. Therefore, the change of the access

restriction condition will not trigger the cell reselection procedure of the UE. Before transmitting

the RRC CONNECTION REQUEST message to the cell, the UE will detect the access level and

the related cell access restriction information. For the UE starting the initial cell access when it

selects UTRAN for inter-system measurement on other cells (it enters connected mode) and the

UEs in connected mode, the access level and cell restrict condition information will be ignored.

4. Emergency call. Generally, all the cells in the not barred state will provide the emergency

service, in spite of the restriction condition and reserving condition. If necessary, the restriction

on the emergency calls will be indicated in the IE of Access class barred list. For the details of

the IE of Access class barred list, refer to TS 22.201.

2.1.4.5 SIB5:

PICH-PowerOffset

AICH-PowerOffset

PrimaryCCPCH-Info: tx-DiversityIndicator for FDD

PRACH-SystemInformationList:

SCCPCH-SystemInformationList:

CBS-DRX-Level1Information

Note:

1. The SIB5 contains the configuration information of the common channel, such as

information received by paging. To fast calculate the paging time during cell reselection, it is

helpful to shorten the repetition cycle of SIB5.

2. The paging and SCCPCH in idle mode. If one or more PCHs are set up in a cell, each

SCCPCH bears one PCH, and each PCH has one PICH respectively, more than one PCH and

PICH will be defined in SIB5, and the UE will select one SCCPCH in the IMSI-based list of SIB5

according to this rule: “the selected SCCPCH index”= IMSI mod K, where K is the number of

SCCPCHs for bearing PCH in the cell (that is the number of SCCPCHs for bearing FACH is not



included). The relevant information of SCCPCH is sequenced from 0 to k-1 in the system

information. The index of SCCPCH uniquely identifies the PCH borne by the SCCPCH in this cell

as well as the relevant PICH. When the UE has no IMSI, for emergency call for example, the

IMSI is regarded as 0.

3. SCCPCH selection in connected mode. If the UE enters connected mode from idle

mode by transmitting the RRC CONNECTION REQUEST message, it will select the SCCPCH

bearing FACH in SIB5 based on the Initial UE identity according to the following rules to receive

the RRC CONNECTION SETUP message: “the selected SCCPCH index”= “Initial UE Identity”

mod K. where K is the number of SCCPCHs for bearing FACH in the cell (that is the number of

SCCPCHs for bearing PCH is not included). The relevant information of SCCPCH is sequenced

from 0 to k-1 in the system information. The initial UE identity is obtained by the UE by

transmitting the IE in RRC CONNECTION REQUEST. Refer to Section 8.2 of the 25.304

protocol, and SIB5 in the 25.331 protocol.

4. Discontinuous connection. The UE in idle mode can use the discontinuous receiving

method (DRX) to lower the power consumption. When DRX is used, the UE only needs to

monitor the PI within each DRX period. The length of the paging period is MAX(2K,PBP) frames,

where K is an integer, and PBP is the paging block period. The PBP is only used for TDD, and it

is equal to the receiving period of PICH. For FDD, PBP=1. The CBS-DRX of SIB5 is only for the

discontinuous receiving for CTCH, and this will be realized in V1.3.

2.1.4.6 SIB7:

UL-Interference: Uplink interference information (-110 to -70)

prach-Information-SIB5-List

prach-Information-SIB6-List, optional

expirationTimeFactor: expirationtimer=MAX ([320ms], SIB_REPexpirationTimeFactor),

indicating update period, with expirationTimeFactor:: 1–8.

Note: SIB7 includes the parameters requiring constant changes transmitted on the RACH

uplink, such as uplink interference, and it is not updated with the value tag of MIB. It must be

read from the BCCH before the usage of these parameters and the transmission in short

repeated cycle.

2.1.4.7 SIB11:

FACH measurement occasion info

Measurement control system information

Note: The size of the SIB11 depends on the number of adjacent cells and the volume of

measurement control information contained. When it is supposed that only one cell exists and

there is other measurement control information, this information block will have no segmentation

in a TTI. When there is 32 adjacent cells (including 12 intra-frequency cells, 12 inter-frequency



cells and 8 GSM cells for example), SIB11 will use 10 TTIs. All these are suitable for SIB12 in

connected mode.

2.1.4.8 SIB18:

Idle mode PLMN identities

Connected mode PLMN identities

2.2 RRC Connection

Figure 6 RRC signalling connection setup process

To access network service, the UE must set up RRC connection at the AS and UTRAN,

namely the RRC CONN REQ for setting up channel allocated by UTRAN, shown in Figure 6, and

then it uses this AS connection for the signalling exchange with the CN. As UTRAN can decide

the initial connected state, CELL_FACH or CELL_DCH, of the UE requesting to access, that is,

different common transport channels mapped by the DCCH corresponds to different RRC flows.

2.2.1 RRC_CONNECTION_REQUEST

Figure 7 shows IEs of this message.

UE information elements

Initial UE identity: Indicates whether a UE has available TMSI, PTMSI, IMSI and IMEI

information, based on the priority of the UE.

Establishment cause: It refers to the RRC connection setup cause, including: Originating

Conversational Call, Originating Streaming Call, Originating Interactive Call, Originating

Background Call, Originating Subscribed traffic Call, Terminating Conversational Call,

Terminating Streaming Call, Terminating Interactive Call, Terminating Background Call,

Emergency Call, Inter-RAT cell re-selection, Inter-RAT cell change order, Registration,

Detach, Originating High Priority Signalling, Originating Low Priority Signalling, Call re-

establishment, Terminating High Priority Signalling, Terminating Low Priority Signalling,

Terminating - cause unknown.

Protocol error indicator: It is the protocol error indicator, including the options of No error,

ASN.1 violation or encoding error, Message type non-existent or not implemented, Message



not compatible with receiver state, Information element value not comprehended,

Information element missing, Message extension not comprehended.

Measurement information elements

Measured results on RACH: It reports the measured results on RACH of the intra-

frequency cell (monitoring set) designated in SIB11, including the qualities of the primary

scrambling code and pilot Ec/No of the cell.

Figure 7 RRC CONNECT REQUEST

2.2.2 RRC_CONNECTION_SETUP & RRC_CONNECTION_SETUP_COMPLETE

When the DCCH is mapped to the common channel (RACH/FACH), the RRC connection

(SRB) does not need to set up a radio link. But during the service setup (TRB), as the DTCH is

mapped to the DCH, a radio link is to be set up, and the RRC connection will be re-set up on the



dedicated channel. When the DDCH is mapped to the DCH, the RRC connection (SRB) needs to

set up a radio link. During the service setup, as DTCH also needs to be mapped to the DCH, the

number of DCHs will be increased, which will lead to repeated configuration of radio links. In

these two cases, the RRC connection request messages initiated by the UE are identical. The

following is the description of the IEs in the RRC connection setup messages in these two cases.

Figure 8, Figure 10, Figure 11 and Figure 13 are two groups of the corresponding flow

messages.

2.2.2.1 UE in the CELL_FACH state after the RRC connection setup

Figure 8 RRC CONNECT SETUP (DCCH is mapped on common channel)

Figure 8 shows the IEs of the RRC CONNECTION SETUP message.

UE Information Elements: When the UE is receiving this message, it will check whether

the ID in this IE is consistent with that of itself. If not so, it will discard this message; if so, it

will read the indication of UE in connected mode from the rrc StateIndication of the UTRAN.



If frequency information is contained, it will select a cell for camping on according to the cell

reselection rule in connected mode. Then it will select PRACH (refer to Section 8.5.17 in the

25.331 protocol) and SCCPCH (refer to Section 8.5.19 in the 25.331 protocol), ignoring the

IE of UTRAN DRX cycle length coefficient, without using DRX. The UE has performed

common channel synchronization before transmitting RRC CONN REQ, so this step is

omitted there.

RB Information Elements: Figure 8 displays four singling RB IEs. At present, SRB1 is used

to transmit the message in the unacknowledgement mode (RLC UM), such as RRC CONN

REL, URA UPDATE CONFIRM, CELL UPDATE CONFIRM and PHYSICAL SHARED

CHANNEL ALLOCATION (Node: the RRC CONN REQ and RRC CONN SETUP messages

are transmitted on the CCCH borne by SRB0). SRB2 is used to transmit the message in the

acknowledgement mode (RLC AM). At present, most messages (except the directly

transmitted messages of the NAS layer) are transmitted on the DCCH of this bearer. SRB3

and SRB4 are used to transmit the directly transmitted messages in the RCL AM mode on

the NAS layer. Each SRB contains the parameters of the RLC layer of the QoS guaranteed

in this bearer, as shown in Figure 9.

TrCH Information Elements (ul AddReconfTransChInfoList and dl

AddReconfTransChInfoList): This message content is invalid in Figure 8, as RACH and

FACH have been set up when the cell is created. DCH 6 filled in is only for message

alignment, which will not be adopted but reserved by the UE. This useless DCH will be

deleted from ul/dl DeletedTransChInfoList during RB SETUP.

maxAllowed UL TX Power: It is the maximum transmit power of the UE, and is set to

24dBm, as shown in the figure.



Figure 9 MappingInfo of SRB1 and SRB2 of the DCCH mapped to the common channel



Figure 10 RRC CONNECT SETUP COMPLETE (DCCH is mapped on the common channel

Figure 10 shows the IEs of RRC CONNECTION SETUP COMPLETE message:

UE Information Elements: It contains values of STARTCS or STARTPS for triggering the

encryption and integrality protection.

Other information elements: It contains the radio access capability information of the UE,

including PDCP capability (indicating whether the PDCP supports lossless transition), RLC

capability (sizes of all RCL AM BUFFERs and the maximum RLC window), transport

channel capability (including maximum transmission and receiving Bit, conversion bit, TB,

TF, TFC, and so on), radio frequency capability (including transmit capability of the UE and

the uplink/downlink frequency interval), physical channel capability (such as maximum

transmit Bit), inter-system access capability, encryption and integrality protection algorithm

supporting capability, measurement capability (for example, whether the uplink/downlink

supports compressed mode measurement. Huawei’s UE supports downlink compressed

mode measurement only).

2.2.2.2 UE in CELL_DCH state after RRC connection setup

Figure 11 shows the IEs of the RRC CONNECTION SETUP message:



Figure 11 RRC CONNECT SETUP (DCCH is mapped to the dedicated channel

UE Information Elements: When the UE is receiving this message, it will check whether

the ID in this IE is consistent with that of itself. If not so, it will discard this message; if so, it

will read the indication of UE in connected mode from the rrc StateIndication of the

UTRAN. If the UE is in the CELL_DCH state, it will enter the synchronization procedure

introduced in the 25.214 protocol. Because when the UE receives this message, NodeB has

created the downlink radio link, so the two stages of downlink synchronization specified in

Section 4.3.1.2 of the 25.214 protocol: Stage 1, the physical layer does not report the Out of

sync message within 160ms after the DCH is set up initially, but it will judge the in-sync state

with this criterion: the physical layer estimates the quality of the downlink DPCCH of the

former 40ms, if this quality is always better than the threshold of Qin, it will report the In sync



message to the high layer. However, before the 40-ms DPCCH quality measurement is

completed, this criterion cannot be realized. Stage 2, 160ms after the DCH is set up, the

physical layer will report the Out of sync and In sync messages according to the actual

detection result. Refer to the protocol for the criterion for judging Out of sync. The out-of-

sync timer (T313/N313) of downlink radio link and the in-sync timer (T315), refer to the

description of SIB1 in the previous part. After the downlink synchronization and the UE

transmits pc preamble (the number of frames in ul DPCH Info) frames on the UL DPCCH

channel, the UL DPDCH starts data transmission. The signalling on SRB is transmitted on

the UL DPDCH only after SRB Delay (the number of frames specified in ul DPCH Info)

frames. The uplink is judged by NODE-B, requiring the detection of the synchronization

mode of all the radio link sets of the uplink in each radio frame. Each radio link set has only

one synchronization mode. In NODEB, each radio link set will be tranfered to one of the

following three states: initial state, out-of-sync state and in-sync state. The protocol does not

specify the judging criteria directly, it just recommends to judge based on the DPCCH quality

estimation or CRC check. For the realization mode, refer to the downlink judging mode

mentioned above.

RB Information Elements: Refer to 2.2.2.1 for details. The difference from 2.2.2.1 is the

logical channel in RB MappingInfo is mapped to DCH.

TrCH Information Elements (ul CommonTransChInfo, ul AddReconfTransChInfoList, dl

CommonTransChInfo, dl AddReconfTransChInfoList): including the information of TFC, TF

and dl DCH Bler.

PhyCH information elements (frequencyInfo): Uplink/downlink frequency information, for

the UE in connected mode to perform cell reselection in the intra-frequency cell.

maxAllowed UL TX Power: The maximum transmit power of the UE, it is 19dBm as shown in

the figure.

Uplink radio resources (ul DPCH Info): It contains the pc preamble, SRB delay and the

uplink power control algorithm, the power offset of the UL DPCCH, scrambling code, spread

factor, TFCI and punching limit used for UL DPCCH synchronization.

Downlink radio resources (dl CommonInfomation and dl Information PerRl List): It

contains the power control mode of the DL DPCH, TFCI, DTX insertion method

(positionFixedorFlexible, it is Fixed at present, which is used for downlink compressed mode

with the punching method), primary scrambling code and channelization code.

Figure 13 shows the IEs of the RRC CONNECTION SETUP COMPLETE message. Refer to

Section 2.2.2.1 for details.



Figure 12 MapingInfo of SRB1 and SRB2 of the DCCH mapped to the DCH

Figure 13 RRC CONNECT SETUP COMPLETE (DCCH is mapped to the DCH)



3 Access Procedure Performance Analysis

3.1 Performance Indices of Access Procedure

For network planning, the performance indices for evaluating the access procedure are the

access success rate and connection delay. These two indices directly reflect the access

performance of the RAN (access network) and UE (mobile phone). They are related to the

coverage and capacity of the network. The access success rate refers to success rate of the

active access caused by call initiating of the NAS layer of the UE or the passive access caused

by paging receiving. Connection delay refers to the time from access to service connection

setup. However, the statistics points of these two indices are in the core network (CN), which

cannot reflect the access state well in the network optimization. In this document the access

performance index of the RAN (that is the RRC connection setup success rate, namely the times

of successful setup of RRC connection) are evaluated from the statistics points of the AS. This

index can be obtained with the OMC statistics tool by referring to Section 2.1.6 in Reference [3].

For the detailed traffic statistics, refer to Reference [7]. This consideration is for network

coverage in the pre-planning and network optimization phases, and measuring the cell pilot

signals through UE of drive test equipment, observing whether the UE performs cell searching,

selection, reselection, initiates random access, attaching, location registration/updating, and

accepts the services of the network normally, so as to perform site adjustment (distance between

sites, azimuth, downtilt and so on).

In addition to the success rate of the RRC connection setup, the cell searching and selection

time, the random access rate, the transmit power of the UE can act as the performance indices

for evaluating network coverage. But the main problem is these indices do not have precise

statistics values.

The speed of random access depends on the initial synchronization time (including code

synchronization and frame synchronization in the random access channel). The number of

random access channels depends on the expected access load. All these will affect the

information transmitted in the random access procedure. Moreover, if the UE uses an over-large

transmit power, it will lower the system capacity. Therefore, it is very essential to lower the

transmit power of the UE in the random access procedure, which cannot be controlled by the fast

closed loop power control in the random access procedure. It seems inconsistent that high

transmit power lead to fast synchronization, but cause interference to other users, while lower

transmit power lead to slow synchronization, kept in the finite repetition times, which drives up

the transmit power step by step. Therefore, the accurate open loop power control can have the

UE use a proper initial transmit power, which will be greatly helpful to the performance of random

access.



3.2 Relevant Factors Affecting Access Procedure Performance

3.2.1 Incorrect Setting of Tcell Affecting Cell Searching Speed

Tcell is used to define the transmit start time and the BFN relative delay of the downlink

scrambling codes of the SCH and CPICH of a cell. Its main purpose is to avoid overlap of the

secondary synchronization channels (SSCH) between different cells in the same NodeB. If this

cannot be avoided, it will affect the frame synchronization and scrambling code group

identification during cell searching. The resolution of the cell Tcell is 256 chips, the value range of

Tcell is 0–9256 chips. Please ensure the Tcells of intra-frequency Neighboring cell are inconsistent.

Refer to Reference [4]

3.2.2 Unreasonable Neighboring cell List Affecting Cell Selection

The RRC CONNECTION REQUEST message contains the pilot measurement information

of this cell and the Neighboring cell attached by the UE. These pilot measurements are

performed during cell selection of the UE. If there are many Neighboring cells of the primary cell

in the system information broadcast, the UE needs to take a long time to measure the qualities of

the pilot signals of all the neighboring cells. Thus the user access speed will be lowered. So an

important task for network optimization is to reasonably plan the neighboring cell list of each

primary cell defined in the planning phase, and delete some useless neighboring cells with the

traffic statistics tool in a specific pre-commercial application. For example, two cells are

neighbours to each other, with handover area. But they does not have or have little inter-cell

handover due to the geographic obstructions such as river. Therefore, these two cells should not

be neighboring cells. These factors cannot be considered in the pre-planning phase due to the

factors of map and dimensioning. So this must be optimized.

3.2.3 Doppler Frequency Shift Affecting Access Performance of UE

The frequency shift of BS and UE are related to the radio instruments directly. The

frequency shift of the BS is 0.05PPM (uncertain). The precision of radio instruments have been

considered in the design, which have been defined before delivery, and must be changed if it is

too poor.

For UMTS, the Doppler frequency shift is represented as slow shading of the channel, which

will affect the access of the UE in the mobile process. As the performance decrease when the

UE is traveling at the speed below 20km/h can be compensated by the power control of the

system, and the deep shading when the UE is traveling at the speed above 60km/h can be

remedied by means of interleaving. This is represented by the requirement on Eb/No (Refer to

Chapter 15 in Reference [5]). The performance degradation includes access performance

degradation of the UE. For this slow shading, the performance of the UE can be kept in high



quality by means of network planning. (As the network planning software does not support

dynamic simulation, it is described as a problem here.)

Please note that, the signings such as RRC (borne by SBR) has higher requirement on the

Eb/No than data (borne by TRB). The access procedure is mainly for signalling exchange, so it

requires BLER be 0%. That is, once an error occurs, the signalling must be retransmitted (whose

QoS are guaranteed by RLC).

3.2.4 Traffic Distribution in Cell Effect on Acquisition Probability

We can view from the message contents listed above that the system realized presently has

not considered the division of the ASC like emergency call service. But in the actual

commercialization process, it is necessary to specify the corresponding ASC strategies to ensure

the number of specific user group like emergency call user group. Especially for the case of high

user density, it is likely to encounter access difficulty (For the scenarios like squares. It may have

few people generally, but may have parties in some specific occasion, during which the access

may be difficult due to large numbers of users. For example, the popularization of short message

brings unexpected pressure to the RAN directly. For the RAN itself, the short message service,

call service and Internet access service are the same, even though short message is a non real-

time service, but it may bring pressure to the services requiring high call success rate, such as

call service and Internet access service. But this will not be represented on traffic model). These

difficulties suffer random access, that is, the user acquisition rate is lowered by collision. This

influence is represented by the random access parameter, namely the maximum retransmission

times of the random access preamble. If the maximum retransmission times is exceeded, it may

cause access failure. This parameter directly maps the collision of the system on the random

access.

The UE may estimate the UL Interference incorrectly due to environment change or different

distance to the BS, because the users at the cell border and those at the cell center use the

same UL Interference (namely the RSSI of NodeB, which is received by the UE in SIB7. This

value is updated once every 1s, and broadcast once every 100ms repeatedly on the BCH. Note

that 1s is the period timer realized by the program, which cannot be modified. The RNC can set

the time interval for repeated broadcast. When the coverage range of the cell is large, this

inaccuracy will affect the initial transmit power of the random access preamble. In addition, it will

affect the parameter of Ramp step between preambles will be affected as a specific acquisition

rate should be guaranteed. Considering large traffic of short message service, the ramp step (2

dB at present) will influence the uplink capacity and the access acquisition rate (This influence

degree needs to be estimated by the whole system simulation. Huawei has not studied to the

depth for the moment).

3.2.5 Different Clutters Affecting Open Loop Power Control



During network planning, different clutters will be covered. Refer to Reference [6]. Different

clutters may lead to different path losses, and this will directly influence the open loop power

control of the initial transmission power of the random access channel preamble. The parameter

representing the compensation to the uplink/downlink path loss is Constant Value (-25dB at

present). The formula for calculating the initial transmission power is as follows:

Preamble_Initial_Power = Primary CPICH TX power – CPICH_RSCP + UL interference +

Constant Value

According to the recent analysis, -25dB is a small value for Constant Value, which should

be set to -20dB or larger, so that the access threshold value can be larger. The value of Pp_m

can be set to a small value, so as to keep the coverage, UL interference at an optimal level.

However, in the actual environment, even though the UE estimates the open loop power

accurately, the actual effect of signal transmitted after the estimation of open loop power arriving

NodeB varies due to different distances between the UE and the BS and different clutter

scenarios. For example, In NodeB, the Ec/No of the static channel and that of the case3 channel

are -21.5, but the acquisition probability in the static channel is about 90%, and that in the case3

channel is less than 70%. Therefore, to improve the random access performance, it is necessary

to consider the influence of the propagation environment on the open loop power control, but

also consider increasing the acquisition probability.

4 Analysis Procedure for Access Procedure

Access procedure analysis can be performed after network pre-planning and cell planning

and development, so as to provide reference for cell planning optimization and network

performance optimization. The following are the analysis steps:

4.1 Step 1: Knowing System Performance

It is mainly to know the operation mode of the network (that is, whether Gs interface exists

between MSC and SGSN). The relevant algorithms of RNC (such as access, call permission,

uplink outer loop power control, load control, etc.) and the algorithm switch setting, as well as the

basic configuration parameters of NodeB, and basic configuration parameters of UE.

4.2 Step 2: Ensuring a Stable System

It is to ensure stable UTRAN and CN, that is to ensure the equipment of RNC and NodeB

run normally, and the transmission between them are stable, and ensure the equipment of MSC,

SGSN, GGSN, HLR and VLR are stable with correct subscriber registration information.

4.3 Step 3: Determining Neighboring cell Distribution



It is to provide PLMN, SA, RA, URA and Neighboring cell list of each primary cell for the

initial network construction according to the network pre-planning and cell planning result.

4.4 Step 4: Executing Pilot Auditing

Pilot auditing is mainly to perform pilot coverage test on the inter-frequency and intra-

frequency cells and the Neighboring cells with E7476, for evaluating the similarities and

differences between the test result and simulation result, and searching for interference source.

For the measurement method for interference source, refer to the frequency scanning test

document (YBT250).

4.5 Step 5: Updating Neighboring cell List

1. In the pre-planning and cell planning stages, the system may be configured with many

Neighboring cells, so it is necessary to optimize the Neighboring cell list according to the

measurement result of the UE.

2. Then count the Neighboring cells that have not been defined according to the traffic

statistics tool.

4.6 Step 6: Drive Test

It is mainly to use an UE to perform cell searching test, cell selection and reselection, and

random access test.

4.7 Step 7: Drive test Result Analysis

4.7.1 Analysis Method

For analysis method for drive test result, refer to Reference [8] and the upcoming drive test

analysis document. The analysis method for the random access part is described as follows:

a. Random access failure, Indicator: The transmission power of the UE has not reached the

maximum value.

Cause 1: The specified ASC restricts the access

Cause 2: The preamble retransmission times has reached the maximum value

Cause 3: The estimated primary transmission power is not suitable

Cause 4: The network side parameters of Constant value, Ramp step and Pp-m are not

suitable

b. Random access failure, Indicator: The transmission power of the UE has reached the

maximum value.

Cause 1: Access channel collision



Cause 2: NodeB does not detect access information

4.7.2 Parameters to be Analyzed and Adjusted in the Access Procedure

Refer to the RNC B02D006 version, as shown in Table 6.

5 Analysis of Problems in Access Procedure

5.1 UE Failing in Cell Search

1. Confirm whether the downlink channel number is set correctly, with the downlink channel

number = downlink frequency 5

2. Confirm whether the NodeB cell is set up successfully, in the case of instrument is

available, observe the code domain power of P-CPICH, P-SCH and S-SCH of NodeB. Evaluate

whether the pilot coverage and common channel ratio are appropriate.

3. Observe the values of RSCP and RSSI received by the UE from the background, which

displays the minimum size of RSSI is –101dBm, and that of RSCP is –106dBm. Increasing the

Tx Power of NodeB if necessary.

4. Check whether the band of UE DB is set correctly.

5.2 UE Failing in Cell Access or Receiving RRC Connection

Rejection

1. Check the call permission restriction or ASC access level restriction

2. Check the RNC System abnormity

3. Check the problems of HLR IMSI subscriber registration.

Note: For the operator, there are two methods for realizing the restriction on access cell: one

is by indicating the state of the cell (reserved for the operator for the control reason); the other is

by barring access of the users within a certain AC range by means of call permission control. For

the users, they are rejected due to system overload in this case. But the users at the specific AC

level can access the network. The AC levels are stored in the USIM.

5.3 RNC Failing in Receiving the RRC_CONNECTION_REQ

Message Transmitted by UE

1. Observe the state of RACH Preamble transmission and AI receiving, to get the preamble

transmission times and last transmission power, and get the AI information received by the UE: 0

for success, 1 for failure and 2 for rejection.



2. Observe from NodeB whether the TFCI value and CRC in the RACH Message are

abnormal, so as to confirm whether message is received incorrectly.

The above two problems may be caused by poor quality of the radio link. The UE can

access the network with a higher power control (for example 16dBm) with the power control

disabled.

3. The last PLMN location registration fails, and is barred. The UE detects the same PLMN

but does not initiate RRC CONN REQ, as this PLMN has been put into FORBIDEN PLMN LIST.

Therefore the UE will not search for another one. Refer to 23.122 3.1.

5.4 UE Failing in Receiving the RRC_CONNECTION_SETUP

Message Transmitted by RNC

1. Input tbfach at the UE super terminal to observe the data receiving status of the FACH

transport channel (with tbfach 1 reset). If there are too many error packets among the total

packets received (or no data packet is received), it indicates the link quality is poor, or the

transmit power of the FACH configured by the RNC is low. In addition, observe the RSSI of the

UE to judge whether this failure is caused by weak signals.

2. Confirm whether the timer window appears.

3. At present, the RRC connection is set up on the DCH. (If the signalling connection switch

is turned on, it will be set up on the FACH.) During the location or test with UE, you can enable

the DCH BLER statistics to see from the background statistics file whether the transport block is

received, and whether it is correct. For the signalling set up on the FACH, you can observe them

with the FACH observing method mentioned in 1.

5.5 UE Failing in Receiving ACK Message Indicating RRC

Connection Completion

1. This is mainly because the uplink cannot receive the

RRC_CONNECTION_SETUP_COMPLETE message. You can confirm it through the Trace of

RNC, or observe whether NodeB reports Restore. If NodeB does not report Restore, it indicates

the uplink is not synchronized successfully, which may be caused by incorrect open loop power

control. You can disable the power control at the UE, so that the UE transmit with a large

transmit power (for example 16dBm).

2. If the repeated reset access fails, and fails after changing an UE, check whether the RLC

parameters are appropriate and modify them (for example increasing the retransmission times).

Table 6 Parameters to be analyzed and adjusted in the access procedure

RNC MML

Command

Par

am

Param

eter

Parameter description



ete

r ID

name

MOD

RNCBASIC

(Modifying

PLMN)

RncId RNC ID

Value range: 0~4095

Physical unit: None

Meaning: It is the unique identifier of an RNC.Recommended value: None

Mcc Mobile country code

Value range: 0~999

Physical unit: None

Meaning: Mobile country code of RNC

Recommended value: None

Mnc Mobile network code

Value range: 0~999 or 0~99

Physical unit: None

Meaning: Mobile network code of RNC

Recommended value: NoneMOD

CNDOMAIN

(Modifying

period timer

and network

running

mode)

CNDomainId CN domain ID

Value range: CS_DOMAIN(CS domain), PS_DOMAIN (PS domain)

Physical unit: None

Meaning: It specifies the CN type


T3212 Cell updating period

Value range: 0~255

Physical unit: 6min

Meaning: This parameter indicates the timer length for periodical update. Periodical update is implemented by the MS through location update. The value of 0 indicates period update is not adopted. Only when the CN domain ID is CS_DOMAIN will this parameter be valid.

Recommended value: 1ATT Attach/detach

allowance indication

Value range: NOT_ALLOWED, ALLOWED

Physical unit: None

Meaning: This parameter indicates whether to allow attach or detach, NOT_ALLOWED indicates MS cannot apply IMSI attach and detach procedure, ALLOWED indicates the MS can apply the IMSI attach and detach procedure. This parameter is valid only when CN domain ID is set to CS_DOMAIN.

Recommended value: ALLOWED



NMONetwork maintenance mode

Value range: MODE1, MODE2

Physical unit: None

Meaning: This parameter indicates the operation network mode. It is to be set according to the actual configurations of the network. It is to be set to MODE1 if Gs interface exists between SGSN and MSC/VLR, and it is to be set to MODE2 if Gs interface does not exist between SGSN and MSC/VLR.


DRXCycleLengthCoef

Discontinuous cycle length coefficient

Value range: 6~9

Physical unit: None

Meaning: This parameter is used by the UE to calculate the length of the DRX cycle length of the CN domain.Recommended value: 8

SET

IDLEMODETI

MER

(Set the timer

in idle mode)

T300 Timer T300

Value range: D100, D200, D400, D600, D800, D1000, D1200, D1400, D1600, D1800, D2000, D3000, D4000, D6000, D8000

Physical value range: 100, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000, 3000, 4000, 6000, 8000

Physical unit: ms

Meaning: The UE starts the timer T300 after transmitting the RRC CONNECTION REQUEST message, and this timer after receiving the RRC CONNECTION SETUP message. Once the timer expires, and if V300=<N300, the UE will retransmit RRC CONNECTION REQUEST; otherwise, it will enter idle mode. The default value is 1000.

Recommended value: D3000

N300 Constant 300

Value range: 0~7

Physical unit: None

Meaning: This parameter indicates the maximum times of retransmission of the RRC CONNECTION REQUEST message, with 3 by default.

Recommended value: 3T312 Timer T312 Value range: 1~15

Physical unit: s

Meaning: The UE starts the timer T312 when it starts to set up DCH, and stops this timer when it detects N312 continuous synchronization indications from L1. Once the timer expires, it indicates physical channel setup failure. The default value is 1.

Recommended value: 1



N312 Constant 312

Value range: D1, D50, D100, D200, D400, D600, D800, D1000

Physical value range: 1, 50, 100, 200, 400, 600, 800, 1000

Physical unit: None

Meaning: This parameter indicates the maximum times of continuous synchronization indication from L1. The default value is 1.Recommended value: D1

SET

IDLEMODETI

MER

(Setting the

timer in

connected

mode)

T301 Timer T301

Value range: D100, D200, D400, D600, D800, D1000, D1200, D1400, D1600, D1800, D2000, D3000, D4000, D6000, D8000


Physical unit: ms

Meaning: This timer is invalid in the R99 protocol. It is a reserved timer. The default value is 2000.


N301 Constant 301

Value range: 0~7

Physical unit: None

Meaning: The default value is 2.

Recommended value: NoneT302 Timer T302 Value range: D100, D200, D400, D600, D800, D1000,

D1200, D1400, D1600, D1800, D2000, D3000, D4000, D6000, D8000


Physical unit: ms

Meaning: The UE starts the timer T302 after transmitting the CELL UPDATE/URA UPDATE message, and stops this timer after receiving the CELL UPDATE CONFIRM/URA UPDATE CONFIRM message. Once the timer expires, and if V302<=N302, the UE will retransmits CELL UPDATE/URA UPDATE; otherwise, it enters idle mode. The default value is 40000.




N302 Constant 302

Value range: 0~7

Physical unit: None

Meaning: It refers to the maximum times of retransmission of the CELL UPDATE/URA UPDATE message. The default value is 3.


T304 Timer T304

Value range: D100, D200, D400, D1000, D2000

Physical value range: 100, 200, 400, 1000, 2000

Physical unit: ms

Meaning: The UE starts the timer T304 after transmitting the UE CAPABILIRY INFORMATION message, and stops after the receiving the UE CAPABILITY INFORMATION CONFIRM message. Once the timer expires, and if V304<=N304, the UE will retransmits UE CAPABILIRY INFORMATION; otherwise, it will initialize the cell updating procedure. The default value is 2000.


N304 Constant 304

Value range: 0~7

Physical unit: None

Meaning: It refers to the maximum times of retransmission of the UE CAPABILIRY INFORMATION message. The default value is 2.

Recommended value: 3T305 Timer T305 Value range: INFINITY, D5, D10, D30, D60, D120, D360,

D720

Physical value range: infinity, 5, 10, 30, 60, 120, 360, 720

Physical unit: min

Meaning: The UE starts the timer T305 after entering the CELL_FACH, URA_PCH or CELL_PCH state and transmitting the CELL UPDATE CONFIRM/URA UPDATE CONFIRM message. The UE stops this timer after entering other state. Once the timer expires, if the timer T307 is not initiated and the UE detects it is in the service area, the UE will transmit CELL UPDATE. Otherwise, if the timer T307 is not initiated, it will be initiated. The value of Infinity indicates no update The default value is 30.




T307 Timer T307

Value range: D5, D10, D15, D20, D30, D40, D50

Physical value range: 5, 10, 15, 20, 30, 40, 50

Physical unit: s

Meaning: The UE starts the timer T307 when the timer T305 expires and the UE detects it is out of the service area, and stops this timer when the UE detects it enters the severing area again. Once the timer expires, the UE enters idle mode. The default value is 30.


T308 Timer T308

Value range: D40, D80, D160, D320

Physical value range: 40, 80, 160, 320

Physical unit: ms

Meaning: The UE starts the timer T308 after the transmitting the RRC CONNECTION RELEASE COMPLETE message. Once the timer expires, and if V308<=N308, the UE transmits the RRC CONNECTION RELEASE COMPLETE message; otherwise, it enters idle mode. The default value is 160.


N308 ConstantN308

Value range: 1~7

Physical unit: None

Meaning: It refers to the maximum times of retransmission of the RRC CONNECTION RELEASE COMPLETE message.

Recommended value: 1T309 Timer T309 Value range: 1~8

Physical unit: s

Meaning: The UE starts the timer T309 after selecting a cell belonging to other radio access system in the connection mode or after receiving the CELL CHANGE ORDER FROM UTRAN message. The UE stops this timer after setting up connection in a new cell successfully. Once the timer expires, the UE will keep connecting with the UTRAN. The default value is 5.




T310 Timer T310



Physical unit: ms

Meaning: The UE starts timer T310 after transmitting the PUSCH CAPACITY REQUEST message, and stops after the UE receives the PHYSICAL SHARED CHANNEL ALLOCATION message. Once the timer expires, and if V310<=N310, the UE will transmit the PUSCH CAPACITY REQUEST message; otherwise, this procedure will be ended. The default value is 160.


N310 Constant 310

Value range: 0~7

Physical unit: None

Meaning: It refers to the maximum timers of retransmission of the PUSCH CAPACITY REQUEST message. The default value is 4.


T311 Timer T311



Physical unit: ms

Meaning: The UE starts the timer T311 after receiving the PHYSICAL SHARED CHANNEL ALLOCATION message, and the item of PUSCH allocation is set to PUSCH allocation pending. The UE stops this timer after receiving the PHYSICAL SHARED CHANNEL ALLOCATION message, and the item of PUSCH allocation is set to PUSCH allocation assignment. Once the timer expires, the UE re-initiates the PUSCH capability request procedure. The default value is 2000.

Recommended value: NoneT312 Timer T312 Value range: 0~15

Physical unit: s

Meaning: The timer T312 is initiated after the UE starts setting up the DCH, and it is stopped after the UE detects N312 continuous in-sync indications on L1. Once the timer expires, it indicates physical channel setup failure. The default value is 1.




N312 Constant 312

Value range: D1, D50, D100, D200, D400, D600, D800, D1000)


Physical unit: None

Meaning: It refers to the maximum number of continuous in-sync indications received from L1. The default value is 1.


T313 Timer T313

Value range: 0~15

Physical unit: s

Meaning: The UE starts the timer T313 after detecting N313 continuous out-of-sync indications on L1, and stops this timer after detecting N315 continuous in-sync indications on L1. Once the timer expires, it indicates physical channel setup failure. The default value is 3.


N313 Constant 313



Physical unit: None

Meaning: It refers to the maximum number of continuous out-of-sync indications received from L1. The default value is 20.

Recommended value: D50T314 Timer T314 Value range: D0, D2, D4, D6, D8, D12, D16, D20


Physical unit: s

Meaning: The UE starts the timer T314 when the radio link failure judging criteria are met and the radio bearer associated with the timer T314 exists, and stops this timer after the cell updating procedure is completed. The default value is 12.

The UE starts the timer T314 (or T315) and the CELL UPDATE signalling is transmitted when the user in the CELL_DCH state encounters radio link connection failure. Before the timer T314 (or T315) expires, if the radio link reconfiguration by the CELL UPDATE CONFIRM message is not successful, the CELL UPDATE signalling can be retransmitted to perform reconfiguration (related to T302 and N302) of the radio link, so as to offer a chance for radio link reconfiguration. For this, set T314 to a value greater than T302N302. After T314 expires, the service RB corresponding to the timer will be deleted.




T315 Timer T315



Physical unit: s

Meaning: The UE starts the timer T315 when the radio link failure judging criteria are met and the radio bearer associated with the timer T315 exists, and stops this timer after the cell updating procedure is completed. The default value is 180.

The UE starts the timer T315 (or T314) and the CELL UPDATE signalling is transmitted when the user in the CELL_DCH state encounters radio link connection failure. Before the timer T315 (or T314) expires, if the radio link reconfiguration by the CELL UPDATE CONFIRM message is not successful, the CELL UPDATE signalling can be retransmitted to perform reconfiguration (related to T302 and N302) of the radio link, so as to offer a chance for radio link reconfiguration. For this, set T314 to a value greater than T302N302. After T315 expires, the service RB corresponding to the timer will be deleted.


N315 Constant 315



Physical unit: s

Meaning: It refers to the maximum number of in-sync indications from L1 during the timing period of the timer T313. The default value is 1.

Recommended value: D1T316 Timer T316 Value range: D0, D10, D20, D30, D40, D50, INFINITY

Physical value range: 0, 10, 20, 30, 40, 50, infinity

Physical unit: s

Meaning: The UE starts the timer T316 when it is in the URA_PCH or CELL_PCH state and detects it is out of the service area. The UE stops this timer after it enters the service area again. Once T316 expires, the UE will initiates the cell updating procedure when it detects it is in the service area; otherwise, the UE starts the timer T317. After the UE detects it enters the service area, its state is transited to CELL_FACH, and it will initiates the cell updating procedure. The default value is 30.




T317 Timer T317



Physical unit: s

Meaning: The UE starts the timer T317 when T316 expires or the UE in the CELL_FACH detects it is out of service area. The UE stops this timer after it enters the service area again. Once T317 expires, the UE state is transited to idle. The default value is 180.Recommended value: D30

MOD

CELLFACHM

ROCCA

(Modifying the

cell FACH

measurement

occasion

information)

CellID Cell ID

Value range: 0~268435455

Physical unit: None

Meaning: It is the unique identifier of a cell.


InterFreqFDD MeasInd

Inter-frequency FDD measurement indication

Value range: REQUIRE , NOT_REQUIRE

Physical unit: None

Meaning: It indicates whether this cell requires inter-frequency cell reselection. REQUIRE indicates it require, in this case the parameter of FACH measurement occasion cycle length coefficient is valid for the inter-frequency measurement; NOT_REQUIRE indicates it does not require, in this case the parameter of FACH measurement occasion cycle length coefficient is invalid for the inter-frequency measurement.


FACHMeasOccaCLC

FACH measurement occasion cycle length coefficient

Value range: 1~12

Physical unit: None

Meaning: It indicates the time when the UE in the CELL_FACH state can enter the inter-frequency measurement. The parameter value range is (1-5). The bigger the value, the timer spent for inter-frequency cell measurement will be longer. When the inter-frequency FDD measurement indication is REQUIRE or the inter-frequency system measurement indication is REQUIRE TRUE, this parameter must be mandatory.




InterRATMeasInd

Inter-frequency system measurement indication

Value range: REQUIRE, NOT_REQUIRE

Physical unit: None

Meaning: It indicates whether this cell requires inter-frequency cell reselection. REQUIRE indicates it requires, in this case the parameter of FACH measurement occasion cycle length coefficient is valid for the inter-frequency measurement; NOT_REQUIRE indicates it does not require, in this case the parameter of FACH measurement occasion cycle length coefficient is invalid for the inter-frequency measurement.

Recommended value: NoneMOD CELL

(Modifying the

basic

information

data of the

cell, including

[maximum

transmit

power of cell],

[radio

connection

failure time],

[number of

continuous in-

sync

indications],

[number of

out-of-sync

indications] )

as well as the

transmit

power of the

CellID Cell ID


Physical unit: None



MaxTxPower

Maximum transmit power of the cell

Value range: 0~500

Physical value range: 0~50, with the step length of 0.1

Physical unit: dBm

Meaning: It specifies the sum of the maximum transmit power of all the downlink channels in the cell at the same time. It is set according to the network planning.

Recommended value: 430NInsyncInd

Number of continuous in-sync indications

Value range: 1~256

Physical unit: None

Meaning: It specifies the number of continuous in-sync indications to be received in the radio link recovery process triggered by NodeB. The radio link set keeps in the initial state until it receives NInsyncInd continuous in-sync indication from L1. In this case, After the radio link recovery process triggered by NodeB indicates radio link set are synchronized, once the radio link recovery process is triggered, the radio link set will be taken as in the in-sync state.




downlink

common

channels

(primary

synchronizati

on channel,

secondary

synchronizati

on channel,

primary

common pilot

physical

channel and

broadcast

channel) in

the cell.

NOutsyncInd

Number of continuous out-of-sync indications

Value range: 1~256

Physical unit: None

Meaning: It specifies the number of continuous out-of-sync indications received for starting the Timer TRlFailure. When the radio link set is in the in-sync state, NodeB needs to start the timer TRlFailure after it receives NOutsyncInd continuous out-of-sync indications. The NodeB needs to stop and reset this timer after it receives NInsyncInd continuous in-sync indications. If the timer TRlFailure expires, NodeB will trigger the radio link failure procedure, and indicates the radio link set out-of-sync.


TRlFailure

Duration of radio link failure timer

Value range: 0~255

Physical value range: 0~25.5, with the step length of 0.1

Physical unit: s

Meaning: It specifies the length of the timer TRlFailure. When the radio link set is in the in-sync state, NodeB needs to start the timer TRlFailure after it receives NOutsyncInd continuous out-of-sync indications. And NodeB should stop and reset this timer after it receives NInsyncInd continuous in-sync indications. If the timer TRlFailure expires, NodeB will trigger the radio link failure procedure and indicates the radio link set out-of-sync.


PschPower

PSCH transmit power

Value range: -350~150

Physical value range: -35~15, with the step length of 0.1

Physical unit: dB

Meaning: This parameter indicates the power offset from the transmit power of the primary common pilot channel (PCPICH) in the cell. PSCH transmit power = [PschPower]0.1 + PCPICH transmit power.

Recommended value: -50SschPower

SSCH transmit power



Physical unit: dB

Meaning: This parameter indicates the power offset from the transmit power of the primary common pilot channel (PCPICH) in the cell. SSCH transmit power = [SschPower] 0.1+PCPICH transmit power

Recommended value: -50



PcpichPower

PCPICH transmit power



Physical unit: dBm

Meaning: This parameter defines the power offset from the transmit power of the PCPICH in the cell. This parameter needs to be set based on the actual system environment, for example, cell coverage range (radius) and geographic environment.


BchPower

BCH transmit power

Value range: -350~150Physical value range: -35~15, with the step length of 0.1Physical unit: dBMeaning: It specifies the power offset of the transmit power of the PCPICH in the corresponding cell. BCH transmit power = [BchPower] × 0.1 + PCPICH transmit power.Recommended value: -20

MOD

CELLSETUP

(This

command can

modify the

basic

information of

a cell, such as

cell name,

uplink

frequency,

downlink

frequency,

node

synchronizati

on switch and

primary

downlink

scrambling

code, as

required.)

CellID Cell ID

Value range: 0 ~268435455

Physical unit: None



CellName Cell name

Value range: 250 characters

Physical unit: None

Meaning: It is the unique name of a cell


UARFCNUplink

Uplink frequency


Physical value range: 0.0~3276.6

Physical unit: MHz

Meaning: It specifies the uplink frequency of the cell.

Recommended value: NoneUARFCNDownlink

Downlink frequency


Physical value range: 0.0~3276.6

Physical unit: MHz

Meaning: It specifies the downlink frequency of the cell.




TCell Time deviation

Value range: CHIP0, CHIP256, CHIP512, CHIP768, CHIP1024, CHIP1280, CHIP1536, CHIP1792, CHIP2048, CHIP2304

Physical value range: 0, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2304

Physical unit: chip

Meaning: This value is used to define the time deviation from BFN, synchronization channel (SCH) in the cell, common pilot channel (CPICH) and downlink scrambling code


DlTpcPattern01Count

Downlink power control mode 1

Value range: 0~30

Physical unit: None

Meaning: It determines the DL TPC mode before the uplink synchronization of the first radio link set is completed.


PowerRaiseLimit

Power raise limit

Value range: 0~10

Physical unit: dB

Meaning: This parameter indicates the raise limit of downlink transmit power within a specific period (defined by DlPowerAverageWindowSize).


DlPowerAverageWindowSize

Downlink power average window size

Value range: 1~60

Physical unit: slot

Meaning: UTRAN calculates the raise of downlink transmit power within the period defined by this parameter to check whether the power raise limit is exceeded. If the limit is exceeded, the power will not be adjusted even the power raise command is received.

Recommended value: 20NodeSynSwitch

Node synchronization switch

Value range: ON, OFF

Physical unit: None

Meaning: It indicates whether to transmit the node synchronization message to NodeB in the cell creation procedure.




PScrambCode

Primary downlink scrambling code

Value range: 0~511

Physical unit: None

Meaning: It specifies the primary scrambling code sequence in the cell.


SupSSDT SSDT support indication

Value range: TRUE, FALSE

Physical unit: None

Meaning: It specifies whether to support location selection diversity (SSDT).

Recommended value: FALSE

STTDIndSTTD

indication of cell


Physical unit: None

Meaning: It specifies whether to support space time transmit diversity (SSDT).


TxDiversityMode

Transmit diversity mode

Value range: NONE, STTD, CLOSED_LOOP_MODE1, CLOSED_LOOP_MODE2

Physical unit: None

Meaning: It indicates whether to configure STTD open loop transmit diversity or closed loop transmit diversity, or not to configure transmit diversity. If closed loop transmit diversity is to be configured, it is necessary to select the mode to be used.


TxDiversityInd

Transmit diversity indication


Physical unit: None

Meaning: It indicates whether to activate transmit diversity configuration.

Recommended value: NoneLoCell Local cell ID Value range: 0~268435455

Physical unit: None

Meaning: Local cell ID, corresponding to the logical cell one by one. It represents the resource of NodeB.




ClosedLoopTimeAdjustMode

Closed loop time adjusting mode

Value range: OFFSET1, OFFSET2

Physical unit: None

Meaning: It indicates the time when the phase/amplitude adjustment is to be executed when the closed loop transmit diversity is performed on the DPCH.Recommended value: None

MOD

CELLSETUP

(Modifying

other

information of

a cell,

incuding

service

indication

(ServiceInd),

location area

code (LAC),

route area

code (RAC),

service area

code (SAC)).

CellID Cell ID


Physical unit: None

Meaning: The unique identifier of a cell.


ServiceInd

CN domain indication

Value range: SUPPORT_CS, SUPPORT_PS, SUPPORT_CS_AND_PS

Physical value range: 0,1,2

Physical unit: None

Meaning: It specifies the CN domain service this cell can support.

Recommended value: SUPPORT_CS_AND_PS

LAC Location area domain code

Value range: 0x0000~0xFFFF (Except 0x0000 and 0xFFFE

Physical unit: None

Meaning: It specifies a location area for the PLMN of the GSM-MAP type. It is defined by the operator.


RAC Routing area code

Value range: 0x00~0xFF

Physical unit: None

Meaning: It specifies a routing area code within a location area code. It is defined by the operator.


SAC Service area code

Value range: 0x0000~0xFFFF

Physical unit: None

Meaning: It constitutes service area ID (SAI) together with PLMN-Id and LAC. The service area ID is used to define an area composed of one or more cells belonging to one location area. This area is called as service area, used for indicating the location of the UE for the CN. SAC is defined by the operator.Recommended value: None



MOD

PCPICHPWR

(Modifying the

power

information of

the primary

common pilot

channel

(PCPICH) in

the cell.)

CellID Cell ID


Physical unit: None



MaxPCPICHPower

Maximum PCPICH transmit power



Physical unit: dBm

Meaning: It specifies the maximum transmit power of the PCPICH in the cell. It should be set based on the actual system environment, such as cell coverage range (radius) and geographic environment. It is affected by the total power of the cell. When the maximum transmit power of the PCPICH is too large, the cell capacity will be decreased. Increasing the power of the pilot channel under the condition of ensuring a certain soft handover area proportion will not help to improve the performance of downlink coverage.


MinPCPICHPower

Minimum PCPICH transmit power



Physical unit: dBm

Meaning: It indicates the minimum transmit power of the PCPICH in the cell. It should be set based on the actual system environment, such as cell coverage range (radius) and geographic environment. When the maximum transmit power of the PCPICH is too small, the cell capacity will be affected. This parameter should be set under the condition of ensuring a certain soft handover area proportion or ensuring no coverage void. Recommended value: None

MOD

CELLACCES

SSTRICT

(Modifying the

cell access

restriction

configuration

information,

including cell

state and cell

reservation

information as

CellID Cell ID


Physical unit: None


Recommended value: NoneCellReservedforoperatoruse

Indication of cell reserved for operator use

Value range: RESERVED, NOT_RESERVED

Physical unit: None

Meaning: It indicates whether the cell is reserved for the operator. If the current cell is in the NOT_BARRED (access allowed) state, and its indication is RESERVED for operator use, the UEs assigned toes 11 and 15 in the local PLMN can select or reselect this cell; while the UEs assigned toes of 0 to 9 and 12 and 14 cannot.

Recommended value: NOT_RESERVED



well as

access

control

information)

Where, by setting the access control information, the operator can prevent access channel overload in the critical condition. The SIM/USIMs of all UEs have been assigned to one of access classes 0 to 9. In addition, the SIM/USIM storage information of the UEs may be assigned with one or more special access classes (access classes 11 to 15). The UEs of these classes are the special uses with high quality, as described below:

Access class 15 —— PLMN Staff

Access class 14 —— Emergency

CellReservationExtension

Indication of cell reservation extension

Value range: RESERVED, NOT_RESERVEDPhysical unit: NoneMeaning: It indicates whether this cell is reserved for expansion. If current cell is in the NOT_BARRED (allowed to access) state, and its indication is NOT_RESERVED for operator use but RESERVED for expansion, the UEs will be barred from this cell.Recommended value: NOT_RESERVED

IsAccessClass0Barred –IsAccessClass15Barred

Indication of barring Access classes 0–15

Value range: BARRED, NOT_BARREDPhysical unit: NoneMeaning: It indicates whether the UE assigned to 0 is allowed to initiate access. The UE judges whether it belongs to this class from SIM/USIM.Recommended value: NOT_BARRED (allowed to access)

CellBarred

Indication of cell barred

Value range: BARRED, NOT_BARRED

Physical unit: None

Meaning: When the cell is in the BARRED state, it indicates it cannot be selected or reselected by the UE, even if for the emergency call service. This parameter is in the switch type.

Recommended value: NOT_BARRED (allowed to access)IntraFreqReselectionId

Intra-frequency cell reselection indication

Value range: ALLOWED, NOT_ALLOWED

Physical unit: None

Meaning: This parameter is valid when the CellBarred is set to BARRED. When the cell state is barred, if this parameter is set to ALLOWED, the UE can select another intra-frequency cell when the cell selection/reselection condition is met; if this parameter is set to NOT_ALLOWED, the UE cannot reselect another intra-frequency cell. For emergency call, this indication can be ignored.




Services Access class

13 —— Public Utilities

Access class 12 —— Security Services

Access class 11 —— For PLMN Use

Different from

access

classes 0 to 9

and access

classes 11 to

15, the control

information of

access class

10 is notified

to the UE

through air

interface

signals, for

indicating

whether the

UEs

belonging to

access

classes 0 to 9

or the UEs

without IMSI

can access

the network

when they

needs the

emergency

call service.

Tarred Barred time



Physical unit: s

Meaning: This parameter is valid when the CellBarred is set to BARRED. It indicates the delay to the next time of measurement on this cell when this cell is barred. The barred time can be adjusted properly according to the actual unavailable time of the cell in the network planning.




MOD

CELLSELRE

SEL

(Modifying

cell selection

and

reselection

information)

CellID Cell ID


Physical unit: None



Qhyst1s Measurement hysteresis 1

Value range: 0~20

Physical value range: 0~40, with the step length of 2.

Physical unit: dBm

Meaning: This specifies the hysteresis value (Qhyst). It is used for in case the quality measure for cell selection and re-selection is set to CPICH RSCP. The value is related to the slow shading characteristics of the area where the cell is located. The bigger the slow shading variance, the bigger this value will be.


Qhyst2s Measurement hysteresis 2

Value range: 0~20

Physical value range: 0~40, with the step length of 2

Physical unit: dB

Meaning: This specifies the hysteresis value (Qhyst). It is used if the quality measure for cell selection and re-selection is set to CPICH Ec/No. The value is related to the slow shading characteristics of the area where the cell is located. The bigger the slow shading variance, the bigger this value will be.

Recommended value: 1Treselections

Reselection delay time

Value range: 0~31

Physical unit: s

Meaning: If the signal qualities of other cells (CPICH Ec/No measured by the UE) keep better than the current cells camped on within the time specified by this parameter, the UE will update the cell to be camped on. This parameter is used to avoid Pingpong reselection between cells. The value of 0 corresponds to the default value specified in the protocol, but does not indicate 0s.




QqualminMinimum quality standard

Value range: -24~0

Physical unit: dB

Meaning: It corresponds to the minimum access threshold of CPICH Ec/No. Only when the UE detects a CPICH Ec/No greater than this threshold can the UE camp on this cell.


Qrxlevmin Minimum receiving level

Value range: -58~ -13

Physical value range: -115~-25, with the step length of2(-58: -115; -57:-113; ..., -13:25)

Physical unit: dBm

Meaning: It corresponds to the minimum access threshold of CPICH RSCP. Only when the UE detects a CPICH RSCP greater than this threshold can the UE camp on this cell.


MaxAllowedUlTxPower

Maximum allowed uplink transmit power of the UE

Value range: -50~33

Physical unit: dBm

Meaning: It is the maximum transmit power that the UE is allowed to use in this cell. Its value is related to network planning.

Recommended value: NoneSintrasearch

Intra-frequency cell reselection starting threshold

Value range: -16~10

Physical value range: -32~20, with the step length of 2

Physical unit: dB

Meaning: It is the threshold of starting intra-frequency cell reselection. When the UE detects the CPICH Ec/No value of the current service area is lower that this threshold plus the minimum quality standard of this service cell (that is the parameter of Qqualmin), it will start the cell reselection procedure. This parameter is optional.




Sintersearch

Inter-frequency cell reselection starting threshold

Value range: -16~10


Physical unit: dB

Meaning: It is the threshold for starting the Inter-frequency cell reselection procedure. When the UE detects the CPICH Ec/No value of the current service area is lower that this threshold plus the minimum quality standard of this service cell (that is the parameter of Qqualmin), it will start the cell reselection procedure. This parameter is optional.


Ssearchrat

Inter-system cell reselection starting threshold

Value range: -16~10


Physical unit: dB

Meaning: It is the threshold for starting the Inter-system cell reselection procedure. When the UE detects the CPICH Ec/No value of the current service area is lower that this threshold plus the minimum quality standard of this service cell (that is the parameter of Qqualmin), it will start the cell reselection procedure. This parameter is optional.


SintrasearchInd

Indication of configuring intra-frequency cell reselection starting threshold

Value range: TRUE (Configure the intra-frequency cell reselection starting threshold, FALSE(Not configure the intra-frequency cell reselection starting threshold

Physical unit: None

Meaning: It indicates whether to set the intra-frequency cell reselection starting threshold.

Recommended value: NoneSintersearchInd

Indication of configuring inter-frequency cell reselection starting threshold

Value range: TRUE (Configure the inter-frequency cell reselection starting threshold, FALSE (Not configure the inter-frequency cell reselection starting threshold)

Physical unit: None

Meaning: It indicates whether to configure the inter-frequency cell reselection starting threshold. TRUE means to configure the inter-frequency cell reselection starting threshold, and FALSE means not to configure it.




SsearchratInd

Indication of configuring inter-system cell reselection starting threshold

Value range: TRUE (Configure the inter-system cell reselection starting threshold), FALSE (Not configure the inter-system cell reselection starting threshold)

Physical unit: None

Meaning: It indicates whether to configure the inter-system cell reselection starting threshold. TRUE means to configure the inter-system cell reselection starting threshold, and FALSE means not to configure it.Recommended value: None

MOD

SCCPCH

(Modifying the

SCCPCH

configuration

information,

including the

information of

the FACH and

PCH

parameters)

CellID Cell ID


Physical unit: None



PhyChId SCCPCH ID

Value range: 0~255

Physical unit: None

Meaning: It uniquely identifies the secondary common control physical channel in a cell


PCHToAWS

Start point of PCH time window

Value range: 0~1279

Physical unit: ms

Meaning: This parameter defines the start point for the downlink data frame reaching the time window. In normal cases, it is estimated that the downlink data frame should reach the window after this time. TOAWS is defined as the positive value corresponding to TOAWE, which indicates the size of the receiving time window.

Recommended value: NonePCHToAWE

End point of PCH time window

Value range: 0~2559

Physical unit: ms

Meaning: This parameter defines the end point for the downlink data frame reaching the time window. In normal cases, it is estimated that the downlink data frame should reach the window before this time. TOAWS is defined as the positive value corresponding to the latest time of arrival (LTOA), which indicates the location of the receiving time window.




PCHPower PCH power



Physical unit: dB

Meaning: This parameter indicates the power offset from the transmit power of the primary common pilot channel (PCPICH) in the cell.


FACHNum

Modified number of FACHs

Value range: D0, D1, D2

Physical value range: 0~2

Physical unit: None

Meaning: It indicates the number of forward accessing channel to be modified


FACH1Id FACH1 ID

Value range: 0~255

Physical unit: None

Meaning: This parameter is the unique identifier of a common transport channel in a cell.


FACH1ToAWS

Start point of FACH1 time window

Value range: 0~1279

Physical unit: ms


Recommended value: NoneFACH1ToAWE

End point of FACH1 time window

Value range: 0~2559

Physical unit: ms





FACH1MaxPower

Maixmum transmit power of FACH1



Physical unit: dB

Meaning: This parameter indicates the power offset from the transmit power of the primary common pilot channel (PCPICH) in the cell.


FACH2Id FACH2 ID

Value range: 0~255

Physical unit: None

Meaning: This parameter is the unique identifier of a common transport channel in a cell.


FACH2ToAWS

Start point of FACH2 time window

Value range: 0~1279

Physical unit: ms



FACH2ToAWE

End point of FACH2 time window

Value range: 0~2559

Physical unit: ms



FACH2MaxPower

Maixmum transmit power of FACH2



Physical unit: dB

Meaning: This parameter indicates the power offset from the transmit power of the primary common pilot channel (PCPICH) in the cell.Recommended value: None



MOD PRACH

(Reconfigurin

g PRACH and

the

corresponding

AICH basic

configuration

information)

CellID Cell ID


Physical unit: None



PhyChId PRACH ID

Value range: 0~255

Physical unit: None

Meaning: This parameter is the unique identifier of a physical random access channel in a cell.


AvailableSF

PRACH spread factor



Physical unit: None

Meaning: This parameter describes the minimum available spread factor of PRACH.


Constantvalue

Constant value of initial transmit power

Value range: -35~-10

Physical unit: dB

Meaning: This parameter is used to calculate transmit power of the first access preamble in the random access procedure, with the following calculation formula:

Preamble_Initial_Power = Primary CPICH DL TX power - CPICH_RSCP + UL interference + Constant Value Where, Preamble_Initial_Power is the initial transmit power, and Primary CPICH DL TX power is the transmit power of the primary common pilot channel, and CPICH_RSCP is the receiving signal code power of the primary common pilot channel measured by UE, and UL interference is the uplink interference.

Recommended value: -23PowerRampStep

Power ramp step

Value range: 1~8

Physical unit: dB

Meaning: This parameter indicates the power ramp step for transmitting the random access preamble before the UE receives the AI in the random access procedure.




PreambleRetransMax

Maximum number of preamble retransmissions

Value range: 1~64

Physical unit: None

Meaning: This parameter indicates the maximum number of preambles transmitted in a preamble ramping cycle.Recommended value: 20

MOD

PRACHUUPA

RAS

(Modifying

random

access

control

parameter in

the system

information of

the

designated

PRACH)

CellID Cell ID


Physical unit: None



PhyChId PRACH ID

Value range: 0~255

Physical unit: None



AvailableSF

PRACH spread factor



Physical unit: None

Meaning: This parameter describes the minimum available spread factor of PRACH.

Recommended value: 32Constantvalue

Constant value of initial transmit power

Value range: -35~-10

Physical unit: dB

Meaning: This parameter is used to calculate transmit power of the first access preamble in the random access procedure, with the following calculation formula:

Preamble_Initial_Power = Primary CPICH DL TX power - CPICH_RSCP + UL interference + Constant Value. Where, Preamble_Initial_Power is the initial transmit power, and Primary CPICH DL TX power is the transmit power of the primary common pilot channel, and CPICH_RSCP is the receiving signal code power of the primary common pilot channel measured by UE, and UL interference is the uplink interference.




PowerRampStep

Power ramp step

Value range: 1~8

Physical unit: dB

Meaning: This parameter indicates the power ramp step for transmitting the random access preamble before the UE receives the AI in the random access procedure.


PreambleRetransMax

Maximum number of preamble retransmissions

Value range: 1~64

Physical unit: None

Meaning: This parameter indicates the maximum number of preambles transmitted in a preamble ramping cycle.Recommended value: 20

MOD

PRACHASC

(Modifying

the available

access

resource

corresponding

to the access

service class

of the

designated

PRACH,

including

available

signature start

index,

available

signature end

index and

available

subchannel

number)

CellID Cell ID


Physical unit: None



PhyChId PRACH ID

Value range: 0~255

Physical unit: None



AccessServiceClass

Access service class

Value range: ASC0, ASC1, ASC2, ASC3, ASC4, ASC5, ASC6, ASC7

Physical unit: None

Meaning: This parameter identifies an access service class.


AvailablesignatureStartIndex

Available signature start index

Value range: 0~15

Physical unit: None

Meaning: This parameter identifies an available signature start index of an access service class.

Recommended value: 0AvailablesignatureEndIndex

Available signature end index

Value range: 0~15

Physical unit: None

Meaning: This parameter identifies an available signature end index of an access service class.




AvailableSubchannelNumber

Available subchannel number

Value range: 0~15

Physical unit: None

Meaning: This parameter indicates the number of available subchannels in an access service class. When the UE selects the access subchannel, if AICH_Transmission_Timing=1, repeat AvailableSubchannelNumber for 3 times, constituting a Bitstring (12), and then perform And operation with the Bitstring (12) corresponding to the available subchannel number of this PRACH to get 12 bits of data streams. When one of these 12 bits is 1, it indicates the corresponding subchannel is available to this ASC. If AICH_Transmission_Timing=0, repeat the last three bits of AvailableSubchannelNumber for four times, constituting the Bitstring (12), and then perform And operation with the Bitstring (12) corresponding to the available subchannel number of this PRACH to get 12 bits of data streams. When one of these 12 bits is 1, it indicates the corresponding subchannel is available to this ASC.


PersistScalingFactor

Persist scaling factor

Value range: Enum{D0.9, D0.8, D0.7, D0.6, D0.5, D0.4, D0.3, D0.2}

Physical value range: 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2

Physical unit: None

Meaning: This parameter is used for ASC2-ASC7 to calculate the corresponding dynamic persist value. It is mandatory for ASC2-ASC7 only.

Recommended value: NoneMOD

PRACHACTO

ASCMAP

(Modifying the

AC-ASC

mapping

information of

the PARCH)

CellID Cell ID


Physical unit: None


Recommended value: NonePhyChId PRACH ID Value range: 0~255

Physical unit: None





Ac09ToAsc

Access classes 0 to 9 mapping to access service class

Value range: 0~7

Physical unit: None

Meaning: This parameter indicates the mapping relation between the users of access classes 0 to 9 and the access service class.


Ac10ToAsc

Access class 10 mapping to access service class

Value range: 0~7

Physical unit: None

Meaning: This parameter indicates the mapping relation between the users of access class 10 and the access service class.


Ac11ToAsc


Value range: 0~7

Physical unit: None



Ac12ToAsc


Value range: 0~7

Physical unit: None



Ac13ToAsc


Value range: 0~7

Physical unit: None


Recommended value: NoneAc14ToAsc


Value range: 0~7

Physical unit: None





Ac15ToAsc


Value range: 0~7Physical unit: NoneMeaning: This parameter indicates the mapping relation between the users of access class 15 and the access service class.Recommended value: None

MOD

INTRAFREQ

CELL

(Modifying the

information

intra-

frequency

Neighboring

cells)

CellID Cell ID


Physical unit: None



NCellID Neighboring cell ID


Physical unit: None

Meaning: It is the unique identifier of an intra-frequency Neighboring cell.


ReadSFNInd

Indicating whether to read SFN or not

Value range: NOT_READ, READ

Physical unit: None

Meaning: It indicates whether to read the SFN of the target cell.

Recommended value: READ

CellIndividalOffset

Cell individal offset

Value range: -20~20


Physical unit: dB

Meaning: It is the CPICH measurement value offset of the cell. This value plus the actual measurement value is used for the event evaluation procedure of the UE. It acts as the border of the mobile cell in the handover algorithms. It is set in the network planning according to the actual environment.

Recommended value: 0CellsForbidden1A

Affecting 1A threshold or not

Value range: NOT_AFFECT, AFFECT

Physical unit: None

Meaning: It indicates this cell will affect the relative threshold of the event 1A or not.

Recommended value: NOT_AFFECT



CellsForbidden1B

Affecting 1B threshold or not

Value range: NOT_AFFECT, AFFECT

Physical unit: None

Meaning: It indicates this cell will affect the relative threshold of the event 1B or not.

Recommended value: NOT_AFFECT

Qoffset2sn

Cell offset of central cell load level from the adjacent cell load level

Value range: -50~50

Physical unit: dB

Meaning: It is the cell offset used for the CPICH Ec/No measurement value in the cell selection and reselection. It acts as the border of Mobile cell. The bigger this value, the probability of selecting adjacent cell will be smaller, and vice versa.


Qoffset1sn


Value range: -50~50

Physical unit: dBm

Meaning: It is the cell offset used for the CPICH RSCP measurement value in the cell selection and reselection. It acts as the border of Mobile cell. The bigger this value, the probability of selecting adjacent cell will be smaller, and vice versa.Recommended value: 0

MOD

INTERFREQ

CELL

(Modifying the

inter-

frequency

Neighboring

cells)

CellID Cell ID


Physical unit: None



NCellID Neighboring cell ID


Physical unit: None

Meaning: It is the unique identifier of an inter-frequency Neighboring cell.

Recommended value: NoneReadSFNInd

Indicating whether to read SFN or not

Value range: NOT_READ, READ

Physical unit: None

Meaning: It indicates whether to read the SFN of the target cell.

Recommended value: READ



CellIndividalOffset

Cell individal offset

Value range: -20~20


Physical unit: dB

Meaning: It is the CPICH measurement value offset of the cell. This value plus the actual measurement value is used for the event evaluation procedure of the UE. It acts as the border of the mobile cell in the handover algorithms. It is set in the network planning according to the actual environment.


Qoffset2sn


Value range: -50~50

Physical unit: dB

Meaning: It is the cell offset used for the CPICH Ec/No measurement value in the cell selection and reselection. It acts as the border of Mobile cell. The bigger this value, the probability of selecting adjacent cell will be smaller, and vice versa.


Qoffset1sn


Value range: -50~50

Physical unit: dBm

Meaning: It is the cell offset used for the CPICH RSCP measurement value in the cell selection and reselection. It acts as the border of Mobile cell. The bigger this value, the probability of selecting adjacent cell will be smaller, and vice versa.

Recommended value: 0MOD

CELLLCS

(Modifying

the LCS

parameter for

cell planning,

which is

worked out by

the network

planning

engineer by

CellID Cell ID


Physical unit: None


Recommended value: NoneLatitudeSign

Latitude sign of cell

Value range: NORTH_LATITUDE, SOUTH_LATITUDE

Physical value range: NORTH_LATITUDE, SOUTH_LATITUDE

Unit: None

Meaning: It is the latitude sign.




means of

reconnaissan

ce)LatitudeDegree

Latitude degree of cell



Physical unit: Degree

Meaning: It is the latitude degree.


LongitudeDegree

Longitude degree of cell

Value range: -180000000~180000000

Physical value range:-180~180, with the step length of 0.000001


Meaning: It is the longitude degree.


CellRadius

Cell coverage radius


Physical value range: 0.01~100, with the step length of 0.01

Physical unit: km

Meaning: It indicates the cell coverage radius.


CellStartAngle

CellS start angle

Value range: 0~3600



Meaning: It is the start angle of the cell.


CellCoverAngle

Cell cover angle

Value range: 0~3600


Unit: Degree

Meaning: It is the cover angle of the cell.


OmniSign

Omnidirectional cell/directional cell indication

Value range: DIRECTIONAL_CELL, OMNIDIRECTIONAL_CELLPhysical value range: directional cell, omnidirectional cellPhysical unit: NoneMeaning: It indicates the cell typeRecommended value: None



List of references:

[1] QUALCOMM, CDMA System Performance Analysis, 2001/10

[2] 3GPP R1999 25_series, 2002/09

[3] HUAWEI, TELLIN Mobile IN Principle and System Technical Manual, 2003/04

[4] Gu Jufeng WCDMA RNP Technology Research on Special Topics —— Research for T_cell

Parameter Setting Between BSs, 2002/10

[5] Bernard Sklar, Digital Communications —— Fandamentals and Applications (Sencond

Edition), 2002/09

[6] Miao Jiashu and Chen Yan, WCDMA RNP Solutions —— Analysis of Typical Application

Scenarios in RAN Coverage Solution, 2002/10

[7] Dong Yan, WCDMA RNP Technology Research on Special Topics —— Traffic Statistics

Index Analysis, 2002/10

[8] Xi Zhibin, Wang Dekai, and so on, XXX––HUAWEI WCDMA XX Radio Network Optimization

Report at Second Stage of WCDMA XX Pilot, 2003/4


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