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Huawei Technologies Co. Ltd.

Product Version Confidentiality

V100R001 For internal useonly

Product Name: WCDMA RNP Total pages: 83

WCDMA RNO Access Procedure

Analysis GuidanceFor internal use only

Prepared by URNP-SANA Date 2003-05-24

Reviewed by Date

Reviewed by Date

Approved by Date

Huawei Technologies Co., Ltd.

All rights reserved

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WCDMA RNO Access Procedure Analysis Guidance For internal use only

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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

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Table of Contents1 Access Procedure ....................................................................................................................................... 7

1.1 Cell Search ............................................................................................................................................ 71.1.1 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

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

1.2.1 Cell Selection ........................................................................................................................... 81.2.1.1 Triggering occasions:.................................................................................................. 81.2.1.2 PLMN selection............................................................................................................ 81.2.1.3 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

1.3 Random Access ................................................................................................................................... 16

1.3.1 Random Access Channel ........................................................................................................ 171.3.2 Random Access Procedure ..................................................................................................... 19

2 Signalling Messages of Access Procedure ............................................................................................... 222.1 System 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:............................................................................................................................ 30

2.1.4.4 SIB3:............................................................................................................................ 302.1.4.5 SIB5:............................................................................................................................ 322.1.4.6 SIB7:............................................................................................................................ 332.1.4.7 SIB11: ......................................................................................................................... 332.1.4.8 SIB18: ......................................................................................................................... 33

2.2 RRC Connection ................................................................................................................................. 33

2.2.1 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

3 Access Procedure Performance Analysis ................................................................................................. 433.1 Performance Indices of Access Procedure .......................................................................................... 43

3.2 Relevant Factors Affecting Access Procedure Performance ............................................................... 443.2.1 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

4 Analysis Procedure for Access Procedure ............................................................................................... 46

4.1 Step 1: Knowing System Performance ................................................................................................ 46

4.2 Step 2: Ensuring a Stable System ........................................................................................................ 464.3 Step 3: Determining Neighboring cell Distribution ............................................................................ 46

4.4 Step 4: Executing Pilot Auditing ......................................................................................................... 474.5 Step 5: Updating Neighboring cell List ............................................................................................... 47

4.6 Step 6: Drive Test ................................................................................................................................ 474.7 Step 7: Drive test Result Analysis ....................................................................................................... 47

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

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4.7.2 Parameters to be Analyzed and Adjusted in the Access Procedure ........................................ 485 Analysis of Problems in Access Procedure .............................................................................................. 48

5.1 UE Failing in Cell Search .................................................................................................................... 485.2 UE Failing in Cell Access or Receiving RRC Connection Rejection ................................................. 48

5.3 RNC Failing in Receiving the RRC_CONNECTION_REQ Message Transmitted by UE ................ 48

5.4 UE Failing in Receiving the RRC_CONNECTION_SETUP Message Transmitted by RNC ............ 495.5 UE Failing in Receiving ACK Message Indicating RRC Connection Completion ............................ 49

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List of Tables

Table 1 S criteria parameter description .................................................................................................... 9

Table 2 Cell reselection parameter description...............................................................