02-A Fundamental Knowledge

M900/M1800 Base Station Controller Initial Configuration Manual Contents

Issue 07 (2006-08-20) Huawei Technologies Proprietary i

Contents

A Fundamental Knowledge ...................................................................................................... A-1

A.1 BSC Data.....................................................................................................................................................A-2

A.1.1 Configuration Principles and Flow ....................................................................................................A-2

A.1.2 Numbering Principle ..........................................................................................................................A-3

A.1.3 AM/CM Data Configuration ..............................................................................................................A-6

A.1.4 BM Data Configuration......................................................................................................................A-8

A.2 Clock Data Configuration .........................................................................................................................A-13

A.3 Trunk and Signaling on the A-interface.....................................................................................................A-14

A.4 BTS Networking .......................................................................................................................................A-16

A.4.1 Principle of Numbering....................................................................................................................A-16

A.4.2 Introduction to BIE ..........................................................................................................................A-17

A.4.3 Star Networking ...............................................................................................................................A-20

A.4.4 Chain Networking ............................................................................................................................A-26

A.4.5 Tree Networking ..............................................................................................................................A-50

A.4.6 Half Rate Networking ......................................................................................................................A-51

A.4.7 Ring Networking..............................................................................................................................A-55

B Correspondence Relation between Data Table and DBF Files .......................................B-1

M900/M1800 Base Station Controller Initial Configuration Manual Figures

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Figures

Figure A-1 BSC data configuration flow...........................................................................................................A-2

Figure A-2 Module numbering in the multi -module BSC................................................................................A-4

Figure A-3 Diagram of frame numbering..........................................................................................................A-5

Figure A-4 The standard configuration of AM/CM...........................................................................................A-6

Figure A-5 AM/CM interface frame optical path distribution...........................................................................A-7

Figure A-6 Optical path distribution..................................................................................................................A-7

Figure A-7 Board numbering in the main control frame ...................................................................................A-9

Figure A-8 Board numbering in the base station interface frame......................................................................A-9

Figure A-9 The full configuration of TCSM unit ............................................................................................A-10

Figure A-10 HW allocation for signaling processing units ............................................................................. A-11

Figure A-11 Node resources distribution.........................................................................................................A-12

Figure A-12 Number of slave nodes in TCSM unit.........................................................................................A-13

Figure A-13 The working principle of the clock system in multi-module BSC ..............................................A-13

Figure A-14 The working principle of the clock system in single-module BSC.............................................A-14

Figure A-15 A-interface signal flow................................................................................................................A-15

Figure A-16 BIE in GSM system ....................................................................................................................A-18

Figure A-17 BIE multiplexing/de-multiplexing ..............................................................................................A-18

Figure A-18 Star networking ...........................................................................................................................A-20

Figure A-19 4-port star networking.................................................................................................................A-21

Figure A-20 6-port star networking.................................................................................................................A-24

Figures M900/M1800 Base Station Controller

Initial Configuration Manual

iv Huawei Technologies Proprietary Issue 07 (2006-08-20)

Figure A-21 Chain networking........................................................................................................................A-27

Figure A-22 Single chain connection ..............................................................................................................A-27

Figure A-23 Dual chain connection.................................................................................................................A-28

Figure A-24 Tree networking ..........................................................................................................................A-51

Figure A-25 BTS networking topology in half rate mode ...............................................................................A-53

Figure A-26 Ring networking modes ..............................................................................................................A-55

Figure A-27 Networking topology of sites in full-rate ring networking mode................................................A-58

M900/M1800 Base Station Controller Initial Configuration Manual Tables

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Tables

Table A-1 Description of master node .............................................................................................................A-12

Table A-2 Timeslot allocation at A-interface ...................................................................................................A-15

Table A-3 Timeslot allocation at Asub interface..............................................................................................A-16

Table A-4 BIE trunk mode...............................................................................................................................A-19

Table A-5 4-port star networking timeslots switching relationship .................................................................A-21

Table A-6 Abis interface timeslots distribution under 4-port star networking mode .......................................A-22

Table A-7 4-port star networking BS interface HW timeslots distribution (with 64kbit/s full rate) ................A-22

Table A-8 6-port star networking TS switching relationship ...........................................................................A-24

Table A-9 6-port star networking Abis interface timeslots distribution ...........................................................A-25

Table A-10 6port star networking BS interface HW timeslots distribution (with 64kbit/s full rate) ...............A-25

Table A-11 10:1chain networking TS switching relationship ..........................................................................A-28

Table A-12 2-port 10:1chain networking Abis interface TS distribution.........................................................A-29

Table A-13 2-port 10:1chain networking BS interface HW TS distribution....................................................A-30

Table A-14 10:1chain networking TS switching relationship..........................................................................A-32

Table A-15 2-port 12:1chain networking Abis interface timeslots distribution ...............................................A-33

Table A-16 2-port 12:1chain networking BS interface HW TS distribution....................................................A-34

Table A-17 HW timeslot distribution on the BS interface in 6-E1 port 16K networking mode ......................A-36

Table A-18 Timeslot distribution on the Abis interface in 6-E1 port * 16K networking mode .......................A-38

Table A-19 HW timeslot distribution on the BS interface in 4-port 16K networking mode (1) ......................A-40

Table A-20 HW timeslot distribution on the BS interface in 4-port 16K networking mode (2) ......................A-41

Tables M900/M1800 Base Station Controller


vi Huawei Technologies Proprietary Issue 07 (2006-08-20)

Table A-21 Timeslot distribution on the Abis interface in 4-E1 port * 16K signaling link networking mode.A-43

Table A-22 2-port 15:1chain networking Abis interface timeslots distribution ...............................................A-45

Table A-23 HW TSs distribution at BS interface.............................................................................................A-46

Table A-24 The timeslots distribution under simulating 12:1 configuration ...................................................A-48

Table A-25 The timeslots distribution under simulating 10:1 configuration ...................................................A-49

Table A-26 HW timeslot in half rate mode......................................................................................................A-53

Table A-27 Abis timeslots in half rate mode....................................................................................................A-54

Table A-28 HW timeslots in full-rate ring networking mode ..........................................................................A-59

Table A-29 Distribution of the normal ring timeslots on the Abis interface ....................................................A-61

Table A-30 Timeslots distribution on the Abis interface in the reverse ring....................................................A-62

Table A-31 Distribution of transparent transmission timeslots on the Abis interface in the normal ring (a) ...A-62

Table A-32 Distribution of transparent transmission timeslots on the Abis interface in the normal ring (b)...A-63

Table A-33 Distribution of transparent transmission timeslots on the Abis interface in the reverse ring (a)...A-65

Table A-34 Distribution of transparent transmission timeslots on the Abis interface in the reverse ring (b) ..A-66

M900/M1800 Base Station Controller Initial Configuration Manual A Fundamental Knowledge

Issue 07 (2006-08-20) Huawei Technologies Proprietary A-1

A Fundamental Knowledge

About This Chapter

The following table lists the contents of this chapter.

Title Description

A.1 BSC Data Describes the configuration sequence of various data and the procedures for configuring the AM/CM data and BM data.

A.2 Clock Data Configuration Describes the procedure for configuring the clock data.

A.3 Trunk and Signaling on the A-interface

Describes the trunk circuits and the signaling on the A interface.

A.4 BTS Networking Describes the BTS star, chain, tree, half rate, and ring networking modes.

A Fundamental Knowledge M900/M1800 Base Station Controller


A-2 Huawei Technologies Proprietary Issue 07 (2006-08-20)

A.1 BSC Data BSC data refers to the data related to the rack, frame, board and resource allocation, etc. It is used to describe the physical feature of BSC.

BSC is made up of hardware system and software system. Before they are put into operation, they are independent of each other. For BSC to work normally, the software system must exercise effective control over the hardware.

Software system masters the hardware configuration and the running character of each hardware unit through BSC data configuration. Hardware system run normally and supplies all kinds of call services with the controlling of software system.

A.1.1 Configuration Principles and Flow

BSC data configuration should follow the principle "from global to local". That means, data configuration starts from configuration for the whole system, and then becomes more specific gradually until it finally resorts to the configuration for each board.

The BSC data configuration consists of two large parts: AM/CM data configuration and BM data configuration. Each of them follows the configuration sequence of module→rack→frame→board→system resources, as shown in Figure A-1.

Figure A-1 BSC data configuration flow

Module Data

Frame Data

Board Data

System Resources Data

Module data configuration

Module data configuration refers to the data description of all the modules of BSC, including module type, working status, inter-module communication and BAM communication of AM/CM and every BM.



Frame and board data configuration

Frame and board data configuration involves such information as the type, location and numbering of each hardware unit in the system.

System resource allocation

System resource allocation refers to the allocation of system internal resources, including main control resources (GNOD), network resources (HW) and inter-module communication resources (optical path and link), etc.

The software system of BSC adopts a fully-distributed control method, i.e., almost every board carries relevant software to control its own hardware. But as a whole, both hardware and software are coordinated and controlled by the central software. To achieve this, the communications between the central software and distributed software and that between distributed software are required. System resources are used to meet the requirement of this internal communication.

Besides, there are also some public data to be configured, mainly the public parameters used by some internal software as well as some parameters required for hardware working under specific environment.

A.1.2 Numbering Principle

Each hardware unit is given a serial number for easy identification by the software system. Together with other information, this serial number is sent to the software system to effectively control the hardware system.

Serial numbers can also help maintenance engineers to perform routine maintenance and locate the fault quickly and easily.

The hardware unit numbering includes the numbering of modules, racks, frames, slots and boards. The principles of numbering are described as follows:

Numbering of modules

Modules are numbered sequentially in the whole BSC. In other words, the number of a module in a BSC must be unique and there should be no other module that has the same module number with it in the whole BSC system. Module number is the number of modules (AM/CM and BM) configured in the system.

AM/CM is fixedly numbered as Module0 and the numbering of BMs begins from 1 to 8, as one AM/CM can have maximum of 8 BMs, Single-module BSC contains only one BM, so the module number of BM is fixed as 1. See Figure A-2.




Figure A-2 Module numbering in the multi -module BSC

AM/CM

BM1 BM2 BM8

0

1 2 8

Numbering of racks

The same as the numbering of modules, racks are also numbered sequentially in the whole BSC system.

For a multi-module BSC, the rack where the AM/CM is located is fixedly numbered as Rack 0 and the racks of BMs are numbered sequentially from 1. In single-module BSC, the rack of the BM is numbered as 1.

Numbering of frames

Frames are sequentially numbered within its module, i.e., frame number cannot be repeated in a module, but the same frame number can exist in other modules.

Frames are fixedly numbered from 0 with the numbering sequence from bottom to top and near to far. The frames are numbered from near to far means all the frames are numbered in sequence from near to far according to the distance between the racks where a frame is located and the main control rack in a muti-rack module.

In the BSC, each rack is made up of 6 standard frames. The frames are numbered in sequence from bottom to top as 0, 1, 2, 3, 4 and 5, as shown in Figure A-3.



Figure A-3 Diagram of frame numbering

AM/CM BM1 BM2

Frame 0

Frame 1

Frame 2

Frame 3

Frame 4

Frame 5

Frame 0

Frame 1

Frame 2

Frame 3

Frame 4

Frame 5

Frame 0

Frame 1

Frame 2

Frame 3

Frame 4

Frame 5

Numbering of slots

There are 26 slots in each frame, numbered in sequence from left to right as 0~25.

Usually a board occupies only one slot while some boards occupy two slots, e.g. GMPU and GMEM. The boards occupying two slots are normally configured in even-numbered slots.

Numbering of boards

Board numbering is very important. It not only determines whether the board can work normally, but also impacts the numbering of SS7 and LAPD links as well as trunk circuits.

The numbering of the boards follows the following principles:

The number of the board begins with 0.

Boards are numbered sequentially in one module, i.e., in the same module, boards of the same type should not take the same number. For example, there should be only one Number 1 GMPU in a module.

The boards of the same type are numbered sequentially in one module. For example, if there are 6 BIEs in a BM, then their board numbers should be in the sequence of 0 to 5 from left to right.

The boards whose slots are compatible to each other are numbered sequentially. For example, in BM, the slots of GMEM, LPN7 and GLAP are compatible, so they are regarded as of the same type and are numbered sequentially.

In the frames such as the main control frame, interface frame and clock frame, the board number has a fixed correspondence with the slot number. Assume all the slots are inserted with corresponding boards, i.e., under the full configuration of the frame, number these boards in the way described above. You can get a board number for each board in each slot. The board number for a certain board in a certain slot is then fixed. This numbering way is applicable to GLAP, LPN7 and GMEM.

In BM, FTC and BIE are numbered sequentially and the MSM board is numbered separately.




The GALM in AM/CM is numbered permanently as 0 and the GALM in BM is numbered permanently as 1.

A.1.3 AM/CM Data Configuration

AM/CM composition

The standard configuration of AM/CM is shown in Figure A-4.

Figure A-4 The standard configuration of AM/CM

0 1 2 3 4 5 6 7 88 10 11 12 13 14 15 16 17 189 20 21 22 23 24 2519

0 1

0101234567890

0 1 2 3 4 5 6 7

8 10 12 14

0 1

17 18 19 20 21 22 2316

24 26 28 30

BAM0

1

2

3

4

5PWC

KC

S

G

KC

S

G

KC

S

PWC

PWC

PWC

PWC

PWC

PWC

PWC

G

LA

M

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

CM

C

G

NS

T

G

NS

T

3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M3E

M

G

BF

I

G

BF

I

G

BF

I

G

BF

I

G

BF

I

G

BF

I

G

BF

I

G

BF

I

G

TC

N

PWC

G

TC

N

G

CM

C

3E

M

In the above figure, Frame 0 is BAM, Frame 2 and 3 are the transmission interface frames, Frame 4 is the communication control frame and Frame 5 is the clock frame.

Configuration description:

Step 1 GFBI works in load sharing mode.

Step 2 GMCC 0 and GMCC 1 are used for accessing BAM, GSNT, GCTN and GALM, so they must be configured. Other GMCCs are used to access BM.

----End



AM/CM optical path configuration

The distribution of AM/CM optical paths is illustrated in Figure A-5.

Figure A-5 AM/CM interface frame optical path distribution

0 1 2 3 4 5 6 7 88 10 11 12 13 14 15 16 17 189 20 21 22 23 24 2519

0

1

4

5

6

7

6

7

4

5

2

3

2

3

0

1

8

9

12

13

14

15

14

15

12

13

10

11

10

11

8

9

24

25

28

29

30

31

30

31

28

29

26

27

26

27

24

25

16

17

20

21

22

23

22

23

20

21

18

19

18

19

16

17

The optical path number of FBC is fixedly determined by its slot. Each FBC has two optical paths, the upper one is called X and the bottom one is called Y. The X optical paths of the two adjacent FBC boards are in active/standby relationship, so do the Y optical paths of the two adjacent FBC boards. The optical paths between BM and AM/CM work in load-sharing mode. See Figure A-6.

Figure A-6 Optical path distribution

X

Y

X

Y

FBC(2n)

FBC(2n+2)

G OPT 0 GOPT 1

In Figure A-6, n means the board number of FBC, 0<n<14.




The speech channel connection procedures in multi-module BSC

MSC←→FTC←→MSM←→E3M←→GCTN←→GFBI←→GOPT←→GNET←→BIE

SS7 transmission procedures in multi-module BSC

MSC←→FTC←→MSM←→E3M←→Transparent transmission BIE←→GNET←→LPN7←→GMPU

Inter-BM communication

BM1: GMPU←→GMC2←→GOPT←→GFBI←→GMCCS

BM2: GMPU←→GMC2←→GOPT←→GFBI←→GMCCS

A.1.4 BM Data Configuration

Single module BSC is seldom being used, so only the BM data configuration of multi-module BSC is introduced here.

BM consists of 1 main control frame, 1 Base Station interface frame and 1~2 TCSM unit frame.

Numbering of Boards

Boards numbering and the full configuration of the frames will be described as follows according to the numbering principles of boards as mentioned above.

Step 1 Main control frame

The board configuration and numbering in the main control frame is shown in Figure A-7.



Figure A-7 Board numbering in the main control frame

0 1 2 3 4 5 6 7 88 10 11 12 13 14 15 16 17 189 20 21 22 23 24 2519

0 1 2 3 4 5 0 0 1 2 3 4 0 1 1

6 7 88 109 5 6 7 8 90 1 0 11

0

PWC

PWC

PWC

PWC

GNOD

GNOD

GNOD

GNOD

GNOD

GNOD

GEMA

GNOD

GMPU

GMPU

GNOD

GNOD

GNOD

GNOD

GNOD

GNET

GNET

GMEM

LPN7

LPN7

GLAP

GLAP

GLAP

GLAP

GLAP

GLAP

GMC 2

GOPT

GALM

GMC 2

GOPT

Step 2 Base Station interface frame

The board configuration and numbering in the base station interface frame are shown in Figure A-8.

Figure A-8 Board numbering in the base station interface frame

0 1 2 3 4 5 6 7 8

10 11 12 13 14 15 16 17 189 20 21 22 23 24 2519

0 1 2 3 4 5 6 7 88 9 10 11 12 13 14 15 16

0 1 2 3 4 5 6 7 8

PWC

PWC

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIE

BIEs are numbered from 0 sequentially according to the actual number of boards configured and its numbering has no relationship with their slots.

The two adjacent BIEs constitute an active/standby group that is numbered from 0. The 16 BIE constitutes one group by itself, numbered as 8.

Step 3 TCSM unit

The full configuration of TCSM unit is illustrated in Figure A-9.




Figure A-9 The full configuration of TCSM unit

10 11 12 13 14 15 16 17 189 20 21 22 23 24 25190 1 2 3 4 5 6 7 8

PWS

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

FTC

PWS

MSM

MSM

MSM

MSM

----End

FTCs are numbered according to the configuration status of BIEs and the following principles.

FTC number = Number of HWs occupied by BIE.

For example, configure 2 BIE active/standby groups, each group occupies 8 HWs and each FTC occupies 1 HW. In this case, the starting number of the FTC board = (8 % 2)/1 = 16 and the subsequent FTC can be numbered sequentially from 16.

The MSMs are numbered from 0 sequentially in BM.

For the number of occupied HWs, see II. Network Resource Allocation.

Network Resource Allocation

The BSC system resources mainly include network resources and control resources.

Network resources are HW resources provided by the switching network board (GNET), including 128 HWs, each of which provides 32 timeslots.

The boards that occupy network resources are BIE equipment, signaling processing board and inter-module circuit.

Each active/standby BIE group is allocated with 4 or 8 HWs depending on its networking mode. And the number of HWs occupied by a group depends on the actual cable distribution. FTC and MSM do not occupy HW resources in the system.

Of 128 HWs, 64 HWs are allocated permanently for system internal usage. The signaling processing units LPN7, GLAP and GMEM occupy Number 53 to 62 HWs, as shown in Figure A-10. The numbers of HWs occupied by other boards are determined by the slots where they are located.



Figure A-10 HW allocation for signaling processing units

15 16 17 18 2019

53 54 55 56

62 57 58 59 60

61

GMEM

LPN7

LPN7

GLAP

GLAP

GLAP

GLAP

GLAP

GLAP

Number 48 HW and Number 71 are occupied permanently for fixed use and GALM occupies Number 49 HW.

Several HWs constitute a HW group. For instance, the 8 HWs allocated to a BIE active/standby group constitute a HW group. HW group numbers are presented in the [Slot Description Table]. The corresponding relationship between HW group numbers and HW numbers is given in the [HW Description Table].

Control Resource Allocation

Control resources refer to GNOD that is used by GMPU to control circuit boards such as BIE. In BM, BIE communicates with GMPU via GNOD.

The master node (NOD) is provided by GNOD. At most 11 GNODs can be configured in a BM module. Each GNOD can provide 4 master nodes, i.e., each BM can provide a maximum of 44 master nodes for communication with boards such as BIE, to control their operations.

In BSC system, although the communication of GMEM, LPN7 and GLAP with GMPU is achieved by means of memory switching, BSC takes each memory switching area as a virtual master node. The virtual master nodes occupy node numbers ranging from 44 to 53. For the distribution of master nodes, see Figure A-11.




Figure A-11 Node resources distribution

0 1 2 3 4 5 6 7 88 10 11 12 13 14 15 16 17 189 20 21 22 23 24 2519

0 1 2 3 4 5

6 7 88 109

0123

4567

891011

12131415

16171819

20212223

24252627

28293031

32333435

36373839

40414243

44 45 46 47

49 50 51 52

48

53

One active/standby group of BIE shares one master node, whose number is determined by physical cable distribution.

The maintenance of FTC and MSC is done through a timeslot in E1, so there is no need to allocate nodes to them.

Step 1 Master node description

For the frame length of read/write mailbox and the length of commands sent and reported, it is advisable to refer to the fixed configuration as shown in Table A-1.

Table A-1 Description of master node

Board Type Frame Length of Read/Write Mailbox

Length of Commands Reported or Sent

BIE 10 9

GLAP and LPN7 80 64

Step 2 Slave node number

GMPU visits the equipment via the master node on GNOD. So the equipment visited by GMPU can also be called as slave node. Communication between the master nodes and slave nodes is implemented via serial ports. While the master nodes communicates with the GMPU via the mailbox, for the master nodes collect voluminous information of all its slave nodes. Each master node consists of several slave nodes and each slave node is allocated with a serial number called slave node number. The slave node number of LPN7 and GLAP is 0 and the slave node number of BIE is the same as its board number. The number of the slave nodes in TCSM unit is illustrated in Figure A-12.



Figure A-12 Number of slave nodes in TCSM unit

12 3 4 5

FTC

FTC

FTC

FTC

MSM

A.2 Clock Data Configuration The BSC system adopts stratum-3 clock system. The working principle of the clock system in multi-module BSC is shown in Figure A-13.

Figure A-13 The working principle of the clock system in multi-module BSC

GOPT

GNET

BIE BIE

GMPU GMC2

BM

GCTN

Clcok frame

GSNT

GMCC

MCP

GALM

GFBIAM/CM

MSC reference source

BITS reference source

GPS reference source

The working principle of the clock system in single-module BSC is shown in Figure A-14.




Figure A-14 The working principle of the clock system in single-module BSC

Clock Frame

MSC reference source

BITS reference source

GNET

BIE BIE

GMPU GMC2

GPS reference source

For the multi-module BSC, what connects the MSC is E3M located at the AM/CM transmission interface frame. E3M extracts the 8kHz clock information from the superior MSC transmission line, and transmits it to the 8K-in port on the motherboard of the clock frame through the clock cables on the motherboard (C821CKB). C821CKB also provides 2Mbit/s and 2MHz input ports used to connect the GPS and BITS. The BSC usually extracts the 8kHz signal from the signals of the superior MSC, and it seldom extracts clock information of higher precision directly from the GPS and BITS.

The clock frame is composed of GCKS and PWC. GCKS extracts the 8kHz signal (differential signal) from the trunk or 2Mbit/s and 2MHz signals from other equipment (like the BITS) as its reference clock source.

Each reference clock source has two optional signals. The major function of GCKS is to capture and trace the reference clock source so that the clock signals output from GCKS have the same frequency and phase features as the reference clock source. GCKS provides the clock signals for the BSC, and 2 8kHz and 2 standard 2Mbit/s and 2MHz reference sources, which can also meet the requirement of the stratum-2 A and stratum-3 clocks.

The clock frame is equipped on AM/CM in a multi-module BSC system, and the BM obtains the clock synchronization information provided by the clock frame on the AM/CM through the inter-module optical paths.

A.3 Trunk and Signaling on the A-Interface A-interface is the communication interface between NSS and BSS, that is, the interconnecting interface between MSC and BSC. Its physical link, which is based on standard 2.048Mbit/s PCM digital transmission, transmits information concerning mobile station management, BTS management, mobility management and connection management.

There are two kinds of trunk circuits on the A-interface:



A-interface traffic link (voice)

A-interface signaling link (SS7 link)

As the service information at the NSS side and BSS side is processed at different rates, code conversion and rate adaptation (TRAU, abbreviated as FTC) are required to convert the 16kbit/s service signals at the BSS side into 64kbit/s signals at the NSS side when voice and data services are transmitted between NSS and BSS. Normally FTC is placed at MSC side to achieve multiplexing of the 16kbit/s signals between NSS and BSS so that the number of E1s on the A-interface can be reduced. E3M and MSM are respectively used for BSC and MSC to complete multiplexing and de-multiplexing function. For the signal flow, see Figure A-15.

A TCSM unit contains 1 MSM and 4 FTCs.

In a multi-module BSC, AM/CM manages E3M, through which the BM manages TCSM unit. One E3M can be connected to 4 TCSM units at most. The transparent transmission BIE accomplishes the transparent transmission of signaling on A-interface.

Each E3M provides 5 E1 ports, the first 4 of which can interconnect with 4 TCSM units and the fifth of which is connected to the transparent transmission BIE to accomplish the transparent transmission of SS7 (the processing of SS7 is performed in the BM). One TCSM unit can convert the 64kbit/s signals from the MSC side after FTC code conversion, and then multiplex the 4 E1s to 1 E1 via MSM for transmission.

Figure A-15 A-interface signal flow

E3M

TCSM

To MSC

To TCSM

To Transparent TransmissionBIE(SS7 Signaling)

To BM

A Interface

Asub Interface

As shown in the Figure A-15, the interface between E3M and TCSM is called as Asub Interface and that between the TCSM unit and MSC is called as A-interface.

If the No. 16 timeslot is used to transfer signaling at E1, the timeslot allocation at Asub interface and A-interface see respectively in Table A-2, Table A-3.

Table A-2 Timeslot allocation at A-interface

bit

TS0 1 2 3 4 5 6 7

0 TS0




bit

TS0 1 2 3 4 5 6 7

1 ~ 15 15 full rate channels

16 SS7 (Signaling System Number 7)

17 ~ 31 15 full rate channels

Table A-3 Timeslot allocation at Asub interface

bit

TS 0 1 2 3 4 5 6 7

0 TS0

1 ~ 15 A1 ~ A15 B1 ~ B15 C1 ~ C15 D1 ~ D15

16 SS7

17 ~ 31 A17 ~ A31 B17 ~ B31 C17 ~ C31 D17 ~ D31

The A-interface data configuration described in this chapter includes the data configuration of both Asub and A-interface.

A.4 BTS Networking BSC and BTS are connected through the Base station Interface Equipment (BIE).

BIE accomplishes functions of multiplexing/de-multiplexing, level conversion from HW to E1 and extraction of synchronization clocks, etc.

BTS networking modes include star networking, chain networking and tree networking.

A.4.1 Principle of Numbering

Numbering of sites

The sites in a BM are numbered sequentially from 0 to 63.



Numbering of TRXs

The TRXs in a site are numbered sequentially from 0 to 35. Its slot determines the number of TRXs.

Numbering of channels

The physical channels of a TRX are numbered sequentially from 0 to 7.

Numbering of trunk groups

Trunk group is the set of a cluster of connatural trunk circuits. The trunks connected to BIE constitute one group and those connected to FTC constitute another group. The trunk groups in an office are numbered sequentially. For example, the circuits from BSC to MSC via FTC are grouped as group 0, while the trunk circuits from BSC to BTS and to transparent transmission BIE are grouped as group 1.

Though the trunk circuits at Abis interface are connected to different BTSs, they are still regarded belonging to the same trunk group.

Numbering of trunk circuits

Trunk circuits refer to all HW timeslots allocated by GNET, and are numbered sequentially in a BM. Timeslot number on BS1 Interface refer to all HW timeslots allocated to a BIE group, are numbered sequentially.

The calculation formula is given as follows:

The initial trunk circuit number of the BIE active/standby group = Number the active/standby group× 256 (8 HWs, each of which provides 32 time slots)

For example, the trunk circuit Number of active/standby group 0 is 0~255, that of active/standby group 1 is 256 ~ 511, and that of active/standby group 2 is 512~767 etc.

Active/standby group 7 and 8 respectively occupies 4 HWs, so they should be numbered as exceptions.

A.4.2 Introduction to BIE

Functions

In GSM system, BIE is adopted to connect BSC with BTS, as shown in Figure A-16.




Figure A-16 BIE in GSM system

TMU BIE

Abis Interface

BS Interface

E1 HW

GNET

BTS BSC

Each BIE can provide 6 E1 ports at the maximum and at BTS side each TMU can provide at most 4 E1 ports (If it is BTS20, at most 4 E1 ports can be provided by BIE or BSMU).

Step 1 BTS312 can be configured with 3 cabinet groups at the maximum, among which,

1 main cabinet group. In this main cabinet group, 1 master cabinet (including 2 TMUs) and 1 slave cabinet (no TMU) are configured.

2 extension cabinet group. In each extension cabinet group, 1 master cabinet (including 1 TMU) and 1 slave cabinet (no TMU) are configured.

Step 2 BTS30 can be configured with 3 cabinet groups at the maximum, among which,

1 main cabinet group. In this main cabinet group, 1 master cabinet (including 2 TMUs) and 2 slave cabinet (no TMU) are configured.

2 extension cabinet group. In each extension cabinet group, 1 master cabinet (including 1 TMU) and 2 slave cabinet (no TMU) are configured.

In BM, the voice and signaling information from GNET are sent to BIE through BS interface (HW). After multiplexing, they are sent to corresponding BTS via Abis interface (E1). Information from BTS are sent to GNET after de-multiplexing. See Figure A-17. Each BIE group can support 8 HWs at the maximum, among which 4 HWs form one group. The trunk circuits are numbered continuously and sequentially from 0 to 127.

Figure A-17 BIE multiplexing/de-multiplexing

BIE

BS1

E1HW

Abis

----End



BIE trunk mode

Table A-4 BIE trunk mode

BIE trunk mode Networking mode supported

Maximum number of sites (S) and TRXs (T) supported at each port

BIE type supported

6E1 port*2TRX/port Star networking

1S-2T GM32BIE0 GM32BIE1

4E1 port*6TRX/port Star networking


2E1port*64K LAPD/port

Chain networking Tree networking

1S-10T, 4S-9T, 7S-8T GM32BIE0

2E1port*32KLAPD multiplex mode/port


1S-12T, 5S-10T GM32BIE0

2E1port*multiplex/port Chain networking Tree networking

1S-15T(12SI), 2S-15T(16SI, BTS20 don't support), 2S-14T(4SI), 4S-14T(8SI, BTS20 don't support), 4S-13T, 5S-13T(BTS20 don't support)

GM32BIE1

6E1port (support 16K) Chain networking and tree networking

2S-2T GM32BIE1

4E1port (supports 16K) Chain networking and tree networking

7S-7T GM32BIE1

6E1port*2TRX/port (support link)

Tree networking


4E1port*6TRX/port (support link)

Tree networking


Sim 12:1 Chain networking and tree networking

1S-12T, 5S-10T GM32BIE1

Sim10:1 Chain networking and tree networking

1S-10T, 4S-9T, 7S-8T GM32BIE1




BIE trunk mode Networking mode supported

Maximum number of sites (S) and TRXs (T) supported at each port

BIE type supported

6 E1 Port half rate topology


7S-15T GM34BIE

Full rate ring topology Ring 5S-15T GM34BIE

Half rate ring topology Ring 5S-15T GM34BIE

S indicates site, T indicates TRX and SI means signaling channel. For example, 1S-15T (12SI) means 12 signaling channels are required to be configured when 1 site is configured with 15 TRXs.

In the following part, BIE trunk modes will be described in details according to the networking modes BIE supports.

A.4.3 Star Networking

Star networking is illustrated in Figure A-18.

Figure A-18 Star networking

BSC

BTS0

BTS1

BTS2

Star networking supports two trunk modes, 4E1 port *6TRX/port and 6E1 port*2TRX/port.

4E1 port*6TRX/port

4E1 port*6TRX/port is abbreviated as 4-port star networking, as shown in Figure A-19.



Figure A-19 4-port star networking

BIE SITE0

SITE1

SITE2

SITE3

BS1 Abis

HW0HW1HW2HW3HW4HW5HW6HW7

0

1

2

3

Under this networking mode, the capacity of each E1 port is 6 TRXs and the rate of LAPD is 64kbit/s. Chain networking and multi-chain networking are not supported.

8 HWs correspond to 4 E1 ports, among which, HW0 ~HW3 are multiplexed to port0~port1 and HW4~HW7 are multiplexed to port2~port3. Signaling timeslots are distributed in trunk circuits 96 ~ 127 (224~255), and then they are switched to the timeslots 3, 6, 9, 12, 15, 18 and 31 of the two E1s. See Table A-5 for timeslots switching relationship.

Table A-5 4-port star networking timeslots switching relationship

TS Port0 Port1 Port2 Port3

3 96 102 224 230

6 97 103 225 231

9 98 104 226 232

12 99 105 227 233

15 100 106 228 234

18 101 107 229 235

31 127 125 255 253

Idle TSs are allocated according to TS sequence. For timeslot allocation is fixed, each port can only be allocated with 10 idle timeslots at most, i.e., the TS 4, 5, 7, 8, 10, 11, 13, 14, 16 and 17 of each port are idle TS.

The timeslot allocation of the 4 E1 ports at Abis interface is the same, as shown in Table A-6. In this table, T means TRX, C means Channel. For example, T0C1 means channel1 of TRX0.




Table A-6 Abis interface timeslots distribution under 4-port star networking mode

bit

TS

01 23 45 67

0

1 T0C0 T0C1 T0C2 T0C3

2 T0C4 T0C5 T0C6 T0C7

3 FUL1

4 T1C0 T1C1 T1C2 T1C3

5 T1C4 T1C5 T1C6 T1C7

6 FUL2

7 T2C0 T2C1 T2C2 T2C3

8 T2C4 T2C5 T2C6 T2C7

9 FUL3

10 T3C0 T3C1 T3C2 T3C3

11 T3C4 T3C5 T3C6 T3C7

12 FUL4

13 T4C0 T4C1 T4C2 T4C3

14 T4C4 T4C5 T4C6 T4C7

15 FUL5

16 T5C0 T5C1 T5C2 T5C3

17 T5C4 T5C5 T5C6 T5C7

18 FUL6

19~30

31 OML

The timeslots distribution of the two HW groups at BS interface is the same. The timeslots distribution ofHW0 ~ HW3 is illustrated in Table A-7. In this table, S means Site, T means TRX and C means Channel. For example, S1T2C1 means Channel1 of TRX2 in Site1.

Table A-7 4-port star networking BS interface HW timeslots distribution (with 64kbit/s full rate)

bit

TS

01 234567 01 234567 01 234567 01234567

0 S0T0C0 S0T4C0 S1T2C0 S0T0FUL



bit

TS

01 234567 01 234567 01 234567 01234567












12 S0T1C4 S0T5C4 S1T3C4

13 S0T1C5 S0T5C5 S1T3C5

14 S0T1C6 S0T5C6 S1T3C6

15 S0T1C7 S0T5C7 S1T3C7

16 S0T2C0 S1T0C0 S1T4C0

17 S0T2C1 S1T0C1 S1T4C1

18 S0T2C2 S1T0C2 S1T4C2

19 S0T2C3 S1T0C3 S1T4C3

20 S0T2C4 S1T0C4 S1T4C4

21 S0T2C5 S1T0C5 S1T4C5

22 S0T2C6 S1T0C6 S1T4C6

23 S0T2C7 S1T0C7 S1T4C7

24 S0T3C0 S1T1C0 S1T5C0

25 S0T3C1 S1T1C1 S1T5C1

26 S0T3C2 S1T1C2 S1T5C2

27 S0T3C3 S1T1C3 S1T5C3

28 S0T3C4 S1T1C4 S1T5C4

29 S0T3C5 S1T1C5 S1T5C5 OML1

30 S0T3C6 S1T1C6 S1T5C6




bit

TS

01 234567 01 234567 01 234567 01234567


HW0 HW1 HW2 HW3

6E1port*2TRX/port

6 E1 port * 2TRX/port, abbreviated as 6-port star networking, as shown in Figure A-20.

Figure A-20 6-port star networking

SITE0

SITE1

SITE2

SITE3

SITE4

SITE5

BIE0

1

2

3

4

HW0

HW1

HW2

HW3

Abis

5

Under this networking mode, the capacity of each E1 port is 2 TRXs and the rate of LAPD is 64kbit/s. It does not support chain connection or multi-chain networking. Each BIE occupies only 4 HWs, HW0 ~ HW3, which are multiplexed to port0~port5.

Signaling timeslots are distributed in the trunk circuits 96~127, which are switched to the TS3, TS6 and TS31 of the 6 E1s. The timeslot switching relationship is illustrated in Table 8-5.

Table A-8 6-port star networking TS switching relationship

TS Port0 Port1 Port2 Port3 Port4 Port5

3 96 98 100 102 104 106

6 97 99 101 103 105 107

31 127 125 123 121 119 117



Idle TSs are allocated according to TS sequence. For timeslot allocation is fixed, each port can only be allocated with up to 2 idle timeslots, i.e. TS 4 and TS 5 are idle TSs.

The timeslot allocation of the 6 E1 ports at Abis interface is the same, as shown in Table A-9. In this table, T means TRX, C means Channel. For example, T0C1 means channel1 of TRX0.

Table A-9 6-port star networking Abis interface timeslots distribution

bit

TS

01 23 45 67

0

1 T0C0 T0C1 T0C2 T0C3

2 T0C4 T0C5 T0C6 T0C7

3 FUL1

4 T1C0 T1C1 T1C2 T1C3

5 T1C4 T1C5 T1C6 T1C7

6 FUL2

7~30

31 OML

The timeslots of the HWs at BS interface are distributed as illustrated in Table A-10. In this table, S means Site, T means TRX and C means Channel. For example, S2T0C0 means Channel0 of TRX0 in Site2.

Table A-10 6port star networking BS interface HW timeslots distribution (with 64kbit/s full rate)

bit

TS

01 234567 01 234567 01 234567 01234567













bit

TS

01 234567 01 234567 01 234567 01234567




12 S0T1C4 S2T1C4 S4T1C4

13 S0T1C5 S2T1C5 S4T1C5

14 S0T1C6 S2T1C6 S4T1C6

15 S0T1C7 S2T1C7 S4T1C7

16 S1T0C0 S3T0C0 S5T0C0

17 S1T0C1 S3T0C1 S5T0C1

18 S1T0C2 S3T0C2 S5T0C2

19 S1T0C3 S3T0C3 S5T0C3

20 S1T0C4 S3T0C4 S5T0C4


22 S1T0C6 S3T0C6 S5T0C6


24 S1T1C0 S3T1C0 S5T1C0


26 S1T1C2 S3T1C2 S5T1C2


28 S1T1C4 S3T1C4 S5T1C4


30 S1T1C6 S3T1C6 S5T1C6


HW0 HW1 HW2 HW3

A.4.4 Chain Networking

Chain networking is illustrated in Figure A-21.



Figure A-21 Chain networking

BSC BTS0 BTS1 BTS2

For chain networking or star networking with the number of TRXs for each BTS is more than 6, data are configured the same as that for chain networking. Four scenarios are described for the data configuration of chain networking.

Step 1 If 10:1 mode is adopted, when the total number of TRXs on the chain is no more than 10 (called as single chain), one E1 can be led out respectively from port0 and port2 of the BIE, then connected respectively to the TMUs of BTS. Thus, two single chains can be formed. See Figure A-22.

Step 2 If 10:1 mode is adopted, when the total number of TRXs on the chain is greater than 10 (called as dual chain), the number of TRXs in all levels of BTSs is so great that one E1 cannot bear all of them in chain connection. In this scenario, one E1 can be led out from port0 and port2 of the BIE, and then connected to the port0 and port1 on the TMU of the first level of BTS. Thus, a dual chain can be formed to meet the capacity requirement. See Figure A-23.

Step 3 If 12:1 mode is adopted, when the total number of TRXs on the chain is no greater than 12, single chain connection is adopted. But when the total number of TRXs on the chain is greater than 12, dual chain connection is adopted.

Step 4 If 15:1 mode is adopted, when the total number of TRXs on the chain is no greater than 15, single chain connection is adopted. But when the total number of TRXs on the chain is greater than 15, dual chain connection is adopted.

Figure A-22 Single chain connection

…

…TMU

E1 port0

E1 port2

BIE

HW0~HW3

HW4~HW7

SITE0

SITE0

SITEm

SITEn




Figure A-23 Dual chain connection

……

TMU

E1 port0

E1 port2

BIE

HW0~HW3

HW4~HW7SITE0 SITEm

0

1

2

3

0

1

Chain networking supports 5 trunk mode, 2E1port * full rate 64K LPAD/port, 2E1port * half rate 64K LPAD/port, 2E1port*15:1 multiplexing/port, simulating 12:1 and simulating 10:1.

2E1port* 64K LPAD/port trunk mode

2E1port* full rate 64K LPAD/port trunk mode is shortened as 10:1 chain configuration. Under this networking mode, the capacity of each E1 port is 10 TRXs and the rate of LAPD is 64kbit/s. It supports chain connection and multi-chain networking. The port0 and port 2 of each BIE is valid for traffic, corresponding to 8 HWs. Among the 8 HWs, HW0~HW3 are multiplexed to port0 and HW4~HW7 to port2.

Signaling timeslots are distributed in the trunk circuits 96 ~ 127 (224 ~ 255), which are switched to the 11 signaling timeslots TS3, TS6 … and TS31 of the 2 E1s. The timeslot switching relationship is illustrated in Table A-11.

Table A-11 10:1chain networking TS switching relationship

TS Port0 Port2

3 96 224

6 97 225

9 98 226

12 99 227

15 100 228

18 101 229

21 102 230

24 103 231

27 104 232

30 105 233

31 127 255



The configuration of idle timeslots is described as follows.

When there is no cascading, idle TSs are allocated according to TS sequence. For timeslot allocation is fixed, each port can only be allocated with 18 idle timeslots at most, i.e., the TS 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28 and 29 are idle TS.

When there is cascading, the timeslot allocation of the first level of sites follows the allocation principle under the case when there is no cascading. From the second level of sites, the idle TSs allocation after being switched must follow the allocation principle of the first level of sites.

When 2-port 64kbit/s LAPD rate is taken for site cascading, the number of TRXs supported is reduced by 1 as the number of sites cascaded increases by 1, because the signaling timeslots of different sites cannot be multiplexed. The timeslots distribution at Abis interface is shown in Table A-12.

Table A-12 2-port 10:1chain networking Abis interface TS distribution

bit

TS

01234567

0 Synchronization TS

1 TRX0 traffic TS

2 TRX0 traffic TS

3 RSL0

4 TRX1 traffic TS

5 TRX1 traffic TS

6 RSL1

7 TRX2 traffic TS

8 TRX2 traffic TS

9 RSL2

10 TRX3 traffic TS

11 TRX3 traffic TS

12 RSL3

13 TRX4 traffic TS

14 TRX4 traffic TS

15 RSL4

16 TRX5 traffic TS

17 TRX5 traffic TS

18 RSL5

19 TRX6 traffic TS




bit

TS

01234567

20 TRX6 traffic TS

21 RSL6

22 TRX7 traffic TS

23 TRX7 traffic TS

24 RSL7

25 TRX8 traffic TS

26 TRX8 traffic TS

27 RSL8

28 TRX9 traffic TS

29 TRX9 traffic TS

30 RSL9

31 OML

The TS distribution of the two HW groups at BS interface is the same. See Table A-13 for the TS distribution of HW0~HW3. In this table, T means TRX and C means Channel. For example, T4C2 means Channel2 of TRX4.

Table A-13 2-port 10:1chain networking BS interface HW TS distribution

bit

TS

01 234567 01 234567 01 234567 01234567

0 T0C0 T4C0 T8C0 T0FUL










10 T1C2 T5C2 T9C2



bit

TS

01 234567 01 234567 01 234567 01234567

11 T1C3 T5C3 T9C3

12 T1C4 T5C4 T9C4

13 T1C5 T5C5 T9C5

14 T1C6 T5C6 T9C6

15 T1C7 T5C7 T9C7

16 T2C0 T6C0

17 T2C1 T6C1

18 T2C2 T6C2

19 T2C3 T6C3

20 T2C4 T6C4

21 T2C5 T6C5

22 T2C6 T6C6

23 T2C7 T6C7

24 T3C0 T7C0

25 T3C1 T7C1

26 T3C2 T7C2

27 T3C3 T7C3

28 T3C4 T7C4

29 T3C5 T7C5

30 T3C6 T7C6

31 T3C7 T7C7 OML0

HW0 HW1 HW2 HW3

Data configuration principle under 10:1 mode is described as follows.

The OML of each level of sites must be allocated to the 31st TS of the incoming E1 in its local site (achieved by the TS switching of the superior sites). The TEI of the OML must be configured as the minimum value among all the TEI of the signaling link in the same TS with the rate 64kbit/s. It is recommended that the TEI be configured as 0.

The sub-TS number is configured as 255 in Signaling Channel Connection Table.

The signaling TSs of different sites (including OML and RSL) cannot be allocated to the same TS.




Only the TCHs of the same sites can be configured to the same 64kbit/s TS.

For dual-chain networking, the traffic TS and signaling TS of the same TRX must be allocated to the same port, and they cannot be allocated to two different port.

For BTS30 and BTS312, though many combined cabinet groups belong to the same site (require only one OML), the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.

2 E1 port * 32K LPAD Multiplex Mode/port

2E1 port * half rate 64K LPAD/port is shortened as 12:1 chain configuration. Under this networking mode, the capacity of each E1 port is 12 TRX and the LAPD rate is 32kbit/s. It supports chain connection and multi-chain networking. The port 0 and port 2 of each BIE are valid for service, corresponding to 8 HWs, among which, HW0~HW3 are multiplexed to port0 and HW4~HW7 are multiplexed to port2.

The two adjacent RSLs of the same site share one TS on the E1. But two RSLs of different sites cannot share TS, for the cabinet groups combined are taken on as different sites.

Signaling timeslots are distributed in the trunk circuits 96~127 (224~255), which are switched to the 7 signaling timeslots TS3, TS8, TS13 … and TS31 of the 2 E1s. The timeslot switching relationship is illustrated in Table A-14.

Table A-14 10:1chain networking TS switching relationship

TS Port0 Port2

3 96 224

8 98 226

13 100 228

18 102 230

23 104 232

28 106 234

31 127 255


When there is no cascading, idle TSs are allocated according to TS sequence. For timeslot allocation is fixed, each port can only be allocated with up to 22 idle timeslots, i.e. the TSs 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 16, 17, 19, 20, 21, 22, 24, 25, 26, 27, 29 and 30 are idle TSs.

When there is cascading, the timeslot allocation of the first level of sites follows the allocation principle under the case when there is no cascading. From the second level of



sites, the idle TSs allocation after being switched must follow the allocation principle of the first level of sites.

When 2-port 32kbit/s LAPD rate is taken for site cascading, the number of TRXs supported is reduced by 2 as the number of sites cascaded increases by 1, because the signaling timeslots of different sites cannot be multiplexed. The timeslot distribution at Abis interface is shown in Table A-15.

Table A-15 2-port 12:1chain networking Abis interface timeslots distribution

bit

TS

01234567


1 TRX0 traffic TS

2 TRX0 traffic TS

3 RSL0+RSL1

4 TRX1 traffic TS

5 TRX1 traffic TS

6 TRX2 traffic TS

7 TRX2 traffic TS

8 RSL2+ RSL3

9 TRX3 traffic TS

10 TRX3 traffic TS

11 TRX4 traffic TS

12 TRX4 traffic TS

13 RSL4+ RSL5

14 TRX5 traffic TS

15 TRX5 traffic TS

16 TRX6 traffic TS

17 TRX6 traffic TS

18 RSL6+RSL7

19 TRX7 traffic TS

20 TRX7 traffic TS

21 TRX8 traffic TS

22 TRX8 traffic TS

23 RSL8+RSL9




bit

TS

01234567

24 TRX9 traffic TS

25 TRX9 traffic TS

26 TRX10 traffic TS

27 TRX10 traffic TS

28 RSL10+RSL11

29 TRX11 traffic TS

30 TRX11 traffic TS

31 OML

The TS distribution of the two HW groups at BS interface is the same. See Table 8-13 for the TS distribution of HW0~HW3. In this table, T means TRX and C means Channel. For example, T4C2 means Channel2 of TRX4.

Table A-16 2-port 12:1chain networking BS interface HW TS distribution

bit

TS

01 234567 01 234567 01 234567 01234567

0 T0C0 T4C0 T8C0 T0FUL, T1FUL

1 T0C1 T4C1 T8C1


3 T0C3 T4C3 T8C3


5 T0C5 T4C5 T8C5


7 T0C7 T4C7 T8C7


9 T1C1 T5C1 T9C1




bit

TS

01 234567 01 234567 01 234567 01234567

11 T1C3 T5C3 T9C3

12 T1C4 T5C4 T9C4

13 T1C5 T5C5 T9C5

14 T1C6 T5C6 T9C6

15 T1C7 T5C7 T9C7

16 T2C0 T6C0 T10C0

17 T2C1 T6C1 T10C1

18 T2C2 T6C2 T10C2

19 T2C3 T6C3 T10C3

20 T2C4 T6C4 T10C4

21 T2C5 T6C5 T10C5

22 T2C6 T6C6 T10C6

23 T2C7 T6C7 T10C7

24 T3C0 T7C0 T11C0

25 T3C1 T7C1 T11C1

26 T3C2 T7C2 T11C2

27 T3C3 T7C3 T11C3

28 T3C4 T7C4 T11C4

29 T3C5 T7C5 T11C5

30 T3C6 T7C6 T11C6

31 T3C7 T7C7 T11C7 OML0

HW0 HW1 HW2 HW3


The OML of each level of sites must be allocated to the 31st TS of the incoming E1 in its local site (achieved by the TS switching of the superior sites). The TEI of the OML must be configured as the minimum value among all the TEI of the signaling link in the same TS with rate 64kbit/s. It is recommended that the TEI be configured as 0.

The sub-TS number is configured as 32 or 33 in Signaling Channel Connection Table according to actual practice.

For BTS30 and BTS312, though many combined cabinet groups belong to the same site (require only one OML), the RSL TSs and TCH TSs of different cabinet groups cannot be




multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.

For BTS20 under 12:1 mode, the RSL of TRX0 can only be multiplexed with the RSL of TRX1 to the same 64kbit/s TS, and the RSL of TRX2 can only be multiplexed with the RSL of TRX3 to the same 64kbit/s TS and so on. The same principle is applicable to the RSL of other TRXs.


Only the TCHs of the same site can be configured to the same 64kbit/s TS.

For dual-chain networking, the traffic TS and signaling TS of the same TRX must be allocated to the same port, and they cannot be allocated to two different ports.

For BTS30 and BTS312, the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, for the cabinet groups combined are taken on as different sites, though they actually belong to the same site (they require only one OML).

6 E1 Ports (Supporting 16K)

In the original networking mode, RSL and OML occupy 8 bits of each byte in the 64kbit/s E1 timeslot. In the 16K networking mode, the same as TCH, the RSL and OML only occupy 2 bits of each byte, i.e. 16kbit/s transmission bandwidth resources.

The 16K networking saves E1 transmission (timeslot) resources on the Abis interface, especially, the transmission cost when there are not much TRXs in the BTS. When satellite transmission is adopted on the Abis interface, the expensive fee for the leased satellite circuit can be saved.

For a group of BIE boards, 6 E1 ports are available, and 4 HWs are allocated accordingly. The distribution of the timeslots corresponding to HW0~HW3 on the BS interface is shown in Table A-17.

Table A-17 HW timeslot distribution on the BS interface in 6-E1 port 16K networking mode

bit

TS 01 234567 01 234567 01 234567 01 234567

0 1C1 2C1 3C1

1 1C2 2C2 3C2

2 1C3 2C3 3C3

3 1C4 2C4 3C4

4 1C5 2C5 3C5

5 1C6 2C6 3C6

6 1C7 2C7 3C7

7 1C8 2C8 3C8



bit

TS 01 234567 01 234567 01 234567 01 234567

8 1C9 2C9 3C9 4C9

9 1C10 2C10 3C10 4C10

10 1C11 2C11 3C11 4C11

11 1C12 2C12 3C12 4C12

12 1C13 2C13 3C13 4C13

13 1C14 2C14 3C14 4C14

14 1C15 2C15 3C15 4C15

15 1C16 2C16 3C16 4C16

16 1C17 2C17 3C17 4C17

17 1C18 2C18 3C18 4C18

18 1C19 2C19 3C19 4C19

19 1C20 2C20 3C20 4C20

20 1C21 2C21 3C21 4C21

21 1C22 2C22 3C22 4C22

22 1C23 2C23 3C23 4C23

23 1C24 2C24 3C24 4C24

24 1C25 2C25 3C25 4C25

25 1C26 2C26 3C26 4C26

26 1C27 2C27 3C27 4C27

27 1C28 2C28 3C28 4C28

28 1C29 2C29 3C29 4C29

29 1C30 2C30 3C30 4C30

30 1C31 2C31 3C31 4C31

31 1C32 2C32 3C32 4C32

HW0 HW1 HW2 HW3

In the 6-E1 port * 16K signaling link networking mode, a BIE board occupies 4 HWs (HW0~HW3). The timeslots of HW0~HW2 are respectively switched to TS1 and TS2, and TS4 and TS5 of E1(0) ~ E1(5). This is the same as the original 6*E1 port star networking mode.




Timeslot combination of HW3: The latter 24 16K timeslots are combined into 6 64K timeslots, which can be understood as the OML timeslots in the original star networking mode. Actually the 24 16K timeslots can be used for TCH. The 6 combined timeslots are respectively allocated to E1(0) ~ E1(5) of TS31.

The timeslot distribution on the Abis interface in 6-E1 port 16K networking mode is shown in Table A-18.

Table A-18 Timeslot distribution on the Abis interface in 6-E1 port * 16K networking mode

E1(0) E1(1)

0

1 1C1 1C2 1C3 1C4 1C17 1C18 1C19 1C20

2 1C5 1C6 1C7 1C8 1C21 1C22 1C23 1C24

3

4 1C9 1C10 1C11 1C12 1C25 1C26 1C27 1C28

5 1C13 1C14 1C15 1C16 1C29 1C30 1C31 1C32

6

7

…

…

26

27

28

29

30

31 4C29 4C30 4C31 4C32 4C25 4C26 4C27 4C28

E1(2) E1(3)

0

1 2C1 2C2 2C3 2C4 2C17 2C18 2C19 2C20

2 2C5 2C6 2C7 2C8 2C21 2C22 2C23 2C24

3



E1(2) E1(3)

4 2C9 2C10 2C11 2C12 2C25 2C26 2C27 2C28

5 2C13 2C14 2C15 2C16 2C29 2C30 2C31 2C32

6

7

…

…

26

27

28

29

30

31 4C21 4C22 4C23 4C24 4C17 4C18 4C19 4C20

E1(4) E1(5)

0

1 3C1 3C2 3C3 3C4 3C17 3C18 3C19 3C20

2 3C5 3C6 3C7 3C8 3C21 3C22 3C23 3C24

3

4 3C9 3C10 3C11 3C12 3C25 3C26 3C27 3C28

5 3C13 3C14 3C15 3C16 3C29 3C30 3C31 3C32

6

7

…

…

26

27

28

29

30

31 4C13 4C14 4C15 4C16 4C9 4C10 4C11 4C12




4 E1 Ports (Supporting 16K)

In the original networking mode, RSL and OML occupy 8 bits of each byte in the 64kbit/s E1 timeslots. In the 16K networking mode, the same as TCH, the RSL and OML only occupy 2 bits of each byte, i.e. 16kbit/s transmission bandwidth resources.

The 16K networking saves E1 transmission (timeslot) resources on the Abis interface, especially, the transmission cost when there are not much TRXs in the BTS. When satellite transmission is adopted on the Abis interface, the expensive fee for the leased satellite circuit can be saved.

In the 4-E1 port 16K networking mode, there might be up to 7 TRXs in a BTS. A group of BIE boards provide 4 E1 ports and 8 HWs are used accordingly.

The distributions of the timeslots of the two groups HWs on the BS interface are the same. See Table A-19 for the distribution of the timeslots corresponding to HW0~HW3, and see Table A-20 for that of the timeslots corresponding to HW4~HW7.

Table A-19 HW timeslot distribution on the BS interface in 4-port 16K networking mode (1)

bit

TS 01 234567 01 234567 01 234567 01 234567

0 1C1 2C1 3C1

1 1C2 2C2 3C2

2 1C3 2C3 3C3

3 1C4 2C4 3C4

4 1C5 2C5 3C5

5 1C6 2C6 3C6

6 1C7 2C7 3C7

7 1C8 2C8 3C8

8 1C9 2C9 3C9 4C9

9 1C10 2C10 3C10 4C10

10 1C11 2C11 3C11 4C11

11 1C12 2C12 3C12 4C12

12 1C13 2C13 3C13 4C13

13 1C14 2C14 3C14 4C14

14 1C15 2C15 3C15 4C15

15 1C16 2C16 3C16 4C16

16 1C17 2C17 3C17 4C17



bit

TS 01 234567 01 234567 01 234567 01 234567

17 1C18 2C18 3C18 4C18

18 1C19 2C19 3C19 4C19

19 1C20 2C20 3C20 4C20

20 1C21 2C21 3C21 4C21

21 1C22 2C22 3C22 4C22

22 1C23 2C23 3C23 4C23

23 1C24 2C24 3C24 4C24

24 1C25 2C25 3C25 4C25

25 1C26 2C26 3C26 4C26

26 1C27 2C27 3C27 4C27

27 1C28 2C28 3C28 4C28

28 1C29 2C29 3C29 4C29

29 1C30 2C30 3C30 4C30

30 1C31 2C31 3C31 4C31

31 1C32 2C32 3C32 4C32

HW0 HW1 HW2 HW3

Table A-20 HW timeslot distribution on the BS interface in 4-port 16K networking mode (2)

bit

TS 01 234567 01 234567 01 234567 01 234567

0 5C1 6C1 7C1

1 5C2 6C2 7C2

2 5C3 6C3 7C3

3 5C4 6C4 7C4

4 5C5 6C5 7C5

5 5C6 6C6 7C6

6 5C7 6C7 7C7

7 5C8 6C8 7C8

8 5C9 6C9 7C9 8C9




bit

TS 01 234567 01 234567 01 234567 01 234567

9 5C10 6C10 7C10 8C10

10 5C11 6C11 7C11 8C11

11 5C12 6C12 7C12 8C12

12 5C13 6C13 7C13 8C13

13 5C14 6C14 7C14 8C14

14 5C15 6C15 7C15 8C15

15 5C16 6C16 7C16 8C16

16 5C17 6C17 7C17 8C17

17 5C18 6C18 7C18 8C18

18 5C19 6C19 7C19 8C19

19 5C20 6C20 7C20 8C20

20 5C21 6C21 7C21 8C21

21 5C22 6C22 7C22 8C22

22 5C23 6C23 7C23 8C23

23 5C24 6C24 7C24 8C24

24 5C25 6C25 7C25 8C25

25 5C26 6C26 7C26 8C26

26 5C27 6C27 7C27 8C27

27 5C28 6C28 7C28 8C28

28 5C29 6C29 7C29 8C29

29 5C30 6C30 7C30 8C30

30 5C31 6C31 7C31 8C31

31 5C32 6C32 7C32 8C32

HW4 HW5 HW6 HW7

In the 6-E1 port 16K networking mode, E1(0) and E1(1) correspond to HW0~HW3, and timeslots 3, 6 and 31 of each E1 come from the combined timeslot of HW4. E1(2) and E1(3) correspond to HW4~HW7, and the timeslot allocation principle is the same as that on E1(0) and E1(1), and will no longer be described below.

The mapping relation from HW to the timeslot of E1 in 16K networking mode is similar to that in the original 64K star networking mode in some aspects.



The timeslots of HW0~HW2 are respectively switched to TS1 & TS2, TS4 & TS5, TS7 & TS8, TS10 & TS11, TS13 & TS14, and TS16 & TS17 of E1(0) and E1(1). This is completely the same as that in the original star networking mode.

Timeslot combination of HW3: The latter 24 16K timeslots are combined into 6 64K timeslots, which can be understood as the RSL and OML timeslots in the original star networking mode. Actually the 24 16K timeslots can be used for TCH. The former two combined timeslots are switched to TS3 and TS6 of E1(0); the third and fourth combined ones are switched to TS3 and TS6 of E1(1); the last two combined ones are switched to TS31 of E1(0) and E1(1).

Table A-21 illustrates the distribution of the timeslots on the 4 E1 ports of the Abis interface.

Table A-21 Timeslot distribution on the Abis interface in 4-E1 port * 16K signaling link networking mode

E1(0) E1(1)

0

1 1C1 1C2 1C3 1C4 2C17 2C18 2C19 2C20

2 1C5 1C6 1C7 1C8 2C21 2C22 2C23 2C24

3 4C9 4C10 4C11 4C12 4C17 4C18 4C19 4C20

4 1C9 1C10 1C11 1C12 2C25 2C26 2C27 2C28

5 1C13 1C14 1C15 1C16 2C29 2C30 2C31 2C32

6 4C13 4C14 4C15 4C16 4C21 4C22 4C23 4C24

7 1C17 1C18 1C19 1C20 3C1 3C2 2C3 3C4

8 1C21 1C22 1C23 1C24 3C5 3C6 3C7 3C8

9

10 1C25 1C26 1C27 1C28 3C9 3C10 3C11 3C12

11 1C29 1C30 1C31 1C32 3C13 3C14 3C15 3C16

12

13 2C1 2C2 2C3 2C4 3C17 3C18 3C19 3C20

14 2C5 2C6 2C7 2C8 3C21 3C22 3C23 3C24

15

16 2C9 2C10 2C11 2C12 3C25 3C26 3C27 3C28

17 2C13 2C14 2C15 2C16 3C29 3C30 3C31 3C32

18

19

…




E1(0) E1(1)

28

29

30

31 4C29 4C30 4C31 4C32 4C25 4C26 4C27 4C28

E1(2) E1(3)

0

1 5C1 5C2 5C3 5C4 6C17 6C18 6C19 6C20

2 5C5 5C6 5C7 5C8 6C21 6C22 6C23 6C24

3 8C9 8C10 8C11 8C12 8C17 8C18 8C19 8C20

4 5C9 5C10 5C11 5C12 6C25 6C26 6C27 6C28

5 5C13 5C14 5C15 5C16 6C29 6C30 6C31 6C32

6 8C13 8C14 8C15 8C16 8C21 8C22 8C23 8C24

7 5C17 5C18 5C19 5C20 7C1 7C2 7C3 7C4

8 5C21 5C22 5C23 5C24 7C5 7C6 7C7 7C8

9

10 5C25 5C26 5C27 5C28 7C9 7C10 7C11 7C12

11 5C29 5C30 5C31 5C32 7C13 7C14 7C15 7C16

12

13 6C1 6C2 6C3 6C4 7C17 7C18 7C19 7C20

14 6C5 6C6 6C7 6C8 7C21 7C22 7C23 7C24

15

16 6C9 6C10 6C11 6C12 7C25 7C26 7C27 7C28

17 6C13 6C14 6C15 6C16 7C29 7C30 7C31 7C32

18

19

…

28

29

30

31 8C29 8C30 8C31 8C32 8C25 8C26 8C27 8C28



2E1 port * multiplex/port

2E1 port * 15:1 multiplexing /port is shortened as 15:1 chain configuration. Under this networking mode, the capacity of each E1 port is 15 TRX. It supports chain connection and multi-chain networking. The port0 and port2 of each BIE are valid for service, corresponding to 8 HWs, among which, HW0~HW3 are multiplexed to port0 and HW4~HW7 are multiplexed to port2.

The rate of LAPD is 64kbit/s, shared by 4 signaling links, The TCH traffic TS at Abis interface is not occupied by SDCCH and BCCH alone.

When the BIE supporting 15:1 configuration replaces the BIE not supporting 15:1 configuration, the data configuration under 12:1 and 10:1 mode are different.

When BTS20 adopts 15:1 data configuration, BSMU should be used.


When there is no cascading, idle TSs are allocated according to TS sequence. For timeslot allocation is fixed, each port can only be allocated with 25 idle timeslots at most, i.e. the TS3~TS27 of each port are idle TSs.

When there is cascading, the timeslot allocation of the first level of sites follows the allocation principle under the case when there is no cascading. From the second level of sites, the idle TSs allocation after being switched must follow the allocation principle of the first level of sites.

At Abis interface, there are 108 sub-TSs from TS1 to TS27 for the service channel of 15 TRXs. There are 16 signaling links for TS28 to TS31. Among the 16 signaling links, 4 share one 64kbit/s TS.

When 2-port 64kbit/s LAPD statistics multiplexing is taken for site cascading, the number of TRXs supported is reduced by 1 as the number of sites cascaded is increased by 1, because the signaling timeslots of different sites cannot be multiplexed.

TSs distribution on the Abis interface is illustrated in Table A-22.

Table A-22 2-port 15:1chain networking Abis interface timeslots distribution

bit

TS

01234567


1~27 TRX0~TRX14 traffic TS

28 RSL11+RSL12+ RSL13+RSL14



31 RSL0+RSL1+ RSL2+OML




There are altogether 224 16kbit/s traffic channel and 32 64kbit/s signaling channels in HW pattern at BS interface. Take 7.2 traffic channels for each TRX on the average, it can support 31 TRXs at the maximum. See Table A-23 for the HW TSs distribution at BS interface. In this table, xCx means the TSs transmitting traffic and xFx means the TS transmitting signaling.

Table A-23 HW TSs distribution at BS interface

bit

TS

01 234567 01 234567 01 234567 01234567

0 1C1 2C1 3C1 4F16

1 1C2 2C2 3C2 4F15

2 1C3 2C3 3C3 4F14

3 1C4 2C4 3C4 4F13

4 1C5 2C5 3C5 4F12

5 1C6 2C6 3C6 4F11

6 1C7 2C7 3C7 4F10

7 1C8 2C8 3C8 4F9

8 1C9 2C9 3C9 4F8

9 1C10 2C10 3C10 4F7

10 1C11 2C11 3C11 4F6

11 1C12 2C12 3C12 4F5

12 1C13 2C13 3C13 4F4

13 1C14 2C14 3C14 4F3

14 1C15 2C15 3C15 4F2

15 1C16 2C16 3C16 4F1

16 1C17 2C17 3C17 4C17

17 1C18 2C18 3C18 4C18

18 1C19 2C19 3C19 4C19

19 1C20 2C20 3C20 4C20

20 1C21 2C21 3C21 4C21

21 1C22 2C22 3C22 4C22

22 1C23 2C23 3C23 4C23

23 1C24 2C24 3C24 4C24

24 1C25 2C25 3C25 4C25

25 1C26 2C26 3C26 4C26



bit

TS

01 234567 01 234567 01 234567 01234567

26 1C27 2C27 3C27 4C27

27 1C28 2C28 3C28 4C28

28 1C29 2C29 3C29 4C29

29 1C30 2C30 3C30 4C30

30 1C31 2C31 3C31 4C31

31 1C32 2C32 3C32 4C32

HW0 HW0 HW0 HW3


The OML of each level of sites must be allocated to the 31st TS of the incoming E1 in its local site (achieved by the TS switching of the superior sites). The TEI of the OML must be configured as the minimum value among all the TEIs of the signaling link in the same TS with rate 64kbit/s. It is recommended that the TEI be configured as 0.

Different from TCH, BCCH and SDCCH do not occupy traffic TS and their CICs and TS numbers are 65535 and their sub-TS Numbers are 255.

The sub-TS number is configured as 0, 1, 2 or 3 in the Signaling Channel Connection Table according to actual situations.

To configure signaling links, configure the TSs are loading sharing according to the traffic on each link so that the RSL link of the TRX containing SDCCH can be distributed to different TSs.

For BTS20, in the first level of sites, all the signaling TSs must be allocated to the last four TSs TS28-TS31 of the last level of E1. But the signaling TSs of the subsequent level of sites can be allocated to the TS16-TS31 of its superior E1 according to actual demand. By this principle, the superior level of sites should forward all the signaling TSs of its subsequent level of sites to the last four TSs of the cascaded E1.

For BTS30, the signaling TSs of the first level of sites can be allocated to TS31~TS16 of E1 in sequence. If there is cascading, the OML of the lower level of sites must be allocated to 31st TS, while RSL can be allocated to any TS after TCH TS.


Only the TCHs of the same sites can be configured to the same 64kbit/s TS.


Though many combined cabinet groups belong to the same site (they require only one OML), the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.




Sim 12:1 and Sim 10:1 data configuration

Data configuration of the BIE supporting 15:1 cannot directly take the 12:1 and 10:1 data configuration of the BIE not supporting 15:1.

For BTS20, if the interface board is not BSMU and the BSC uses the BIE that supports 15:1, data configuration for simulating 12:1 and 10:1 can be taken for equipment compatibility.

Step 1 Data configuration for simulating 12:1

Under simulating 12:1 configuration, the link rate of LAPD is 32kbit/s. The timeslots distribution table is illustrated in Table A-24.

Table A-24 The timeslots distribution under simulating 12:1 configuration

bit

TS

01 23 45 67

0 Synchronization

1 V0.0 V0.1 V0.2 V0.3

2 V0.4 V0.5 V0.6 V0.7

3 V1.0 V1.1 V1.2 V1.3

4 V1.4 V1.5 V1.6 V1.7

5 V2.0 V2.1 V2.2 V2.3

6 V2.4 V2.5 V2.6 V2.7

7 V3.0 V3.1 V3.2 V3.3

8 V3.4 V3.5 V3.6 V3.7

9 V4.0 V4.1 V4.2 V4.3

10 V4.4 V4.5 V4.6 V4.7

11 V5.0 V5.1 V5.2 V5.3

12 V5.4 V5.5 V5.6 V5.7

13 V6.0 V6.1 V6.2 V6.3

14 V6.4 V6.5 V6.6 V6.7

15 V7.0 V7.1 V7.2 V7.3

16 V7.4 V7.5 V7.6 V7.7

17 V8.0 V8.1 V8.2 V8.3

18 V8.4 V8.5 V8.6 V8.7

19 V9.0 V9.1 V9.2 V9.3



bit

TS

01 23 45 67

20 V9.4 V9.5 V9.6 V9.7

21 V10.0 V10.1 V10.2 V10.3

22 V10.4 V10.5 V10.6 V10.7

23 V11.0 V11.1 V11.2 V11.3

24 V11.4 V11.5 V11.6 V11.7

25 RSL10+RSL11

26 RSL8+RSL9

27 RSL6+RSL7

28 RSL4+RSL5

29 RSL2+RSL3

30 RSL0+RSL1

31 OML

Idle TSs are allocated according to TS sequence. Each port can only be allocated with 22 idle timeslots at most, i.e., the TS3~TS24 of each port are idle TSs.

2. Data configuration for simulating 10:1

Under simulating 10:1 configuration, the link rate of LAPD is 64kbit/s. The timeslots distribution table is illustrated in Table A-25.

Table A-25 The timeslots distribution under simulating 10:1 configuration

bit

TS

01 23 45 67

0 Synchronization

1 V0.0 V0.1 V0.2 V0.3

2 V0.4 V0.5 V0.6 V0.7

3 V1.0 V1.1 V1.2 V1.3

4 V1.4 V1.5 V1.6 V1.7

5 V2.0 V2.1 V2.2 V2.3

6 V2.4 V2.5 V2.6 V2.7

7 V3.0 V3.1 V3.2 V3.3




bit

TS

01 23 45 67

8 V3.4 V3.5 V3.6 V3.7

9 V4.0 V4.1 V4.2 V4.3

10 V4.4 V4.5 V4.6 V4.7

11 V5.0 V5.1 V5.2 V5.3

12 V5.4 V5.5 V5.6 V5.7

13 V6.0 V6.1 V6.2 V6.3

14 V6.4 V6.5 V6.6 V6.7

15 V7.0 V7.1 V7.2 V7.3

16 V7.4 V7.5 V7.6 V7.7

17 V8.0 V8.1 V8.2 V8.3

18 V8.4 V8.5 V8.6 V8.7

19 V9.0 V9.1 V9.2 V9.3

20 V9.4 V9.5 V9.6 V9.7

21 RSL9

22 RSL8

23 RSL7

24 RSL6

25 RSL5

26 RSL4

27 RSL3

28 RSL2

29 RSL1

30 RSL0

31 OML

Idle TSs are allocated according to TS sequence. Each port can only be allocated with 18 idle timeslots at most, i.e., the TS3~TS20 of each port are idle TSs.

A.4.5 Tree Networking

Tree networking is illustrated in Figure A-24.



Figure A-24 Tree networking

BSC

BTS0

BTS1

BTS2

BTS3

BTS4

Tree connection means more than 2 lower level of sites are connected to a upper level of site. It is an extension of chain networking.

Another form of tree connection is star cascading, i.e., star connection + chain connection.

There are two trunk modes of BIE supporting star cascading, 6E1port * 2TRX/port (support link) and 4E1port * 6TRX/port (support link).

A.4.6 Half Rate Networking

Overview

Different from star, chain and tree networking modes, half rate networking is more actually a kind of data configuration principle. It belongs to the same concept with 6-E1 port * 2TRX/port networking (supporting link) and 4-E1 port * 6TRX/port (supporting link) networking mentioned above. Therefore, the half rate networking is called half rate mode hereinafter.

In the half rate mode, 34BIE must be used. This kind of BIE adopts discretionary switching mode. Therefore, the 256 HW timeslots on the BS interface can be allocated to the voice channels or signaling channels at discretion, provided the number of timeslots is equal to or smaller than 256. Each voice channel needs to be allocated with 2 HW timeslots. Similarly, among the 32 E1 timeslots on the Abis interface, except that TS0 is used for synchronization and that TS31 must be allocated to OML, the remaining 30 timeslots can be allocated to voice channels or signaling channels at discretion provided that the total number of timeslots is not more than 30. The rate of LAPD is 64kbit/s, and statistics multiplexing mode is adopted for site cascading. Every 2 signaling links can be multiplexed to one LAPD link (different from 15:1 data configuration mode). SDCCH and BCCH do not occupy the timeslots on the Abis interface.

In the half rate mode, the 6 E1 ports of each group of BIEs are valid. The number of TRXs supported by each E1 port can be configured at discretion, provided it is not more than 13, and that the total number of TRXs configured to all the 6 E1 ports is not more than 18. The half rate mode supports such as star, chain, tree networking modes, etc. When site cascading is adopted, as the signaling timeslots of different sites cannot multiplexed, once a site increases, the number of TRXs supported by each E1 port will decrease.




Principle for configuration of idle timeslots


When there is no cascading, idle timeslots are allocated according to timeslot sequence. For timeslot allocation is fixed, each port can only be allocated with up to 28 timeslots as idle timeslots. That is, timeslots 3~30 of each port can be allocated as idle timeslots.

When there is cascading, the timeslot allocation of the first level of sites follows the allocation principle under the case when there is no cascading. From the second level of sites, the allocation of the idle timeslots after being switched must follow the allocation principle of the first level of sites.

Data configuration principle The OML of each level of sites must be allocated to the 31st TS of the incoming E1 in its

local site (achieved by the TS switching of the superior sites). The TEI of the OML must be configured as the minimum value among all the TEIs of the signaling link in the same TS with rate of 64kbit/s. It is recommended that the TEI be configured as 0.

The multiplexing ratio of OML and that of RSL are 2:1.

Separated from TCH, BCCH and SDCCH do not occupy voice timeslots and their CICs and TS numbers are 65535 and their sub-TS numbers are 255.

The sub-TS number is configured as 0 or 1 in the Signaling Channel Connection Table according to actual situations.

The signaling TSs (including TSs of OML and RSL) and traffic TSs (of TCH) of different sites cannot be allocated to the same TS. In case of cabinet group combination, though multiple combined cabinet groups belong to the same site (only one OML required), the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.


The 256 HW timeslots (trunk circuits) of the BS1 interface are numbered sequentially. The TCH timeslots are allocated sequentially from 0 to 255, while the OML and RSL timeslots are allocated sequentially from 255 to 0.

To support dynamic adjustment to channel rate, two HW timeslots are allocated to each TCH in the Radio Channel Configuration Table. When the TCH type is configured as full rate, the full-rate TCH occupies one timeslot, and the other one is idle in normal cases. When the channel rate is adjusted, i.e. one full-rate TCH is adjusted into two half-rate TCHs, each of the two half-rate TCHs occupies a timeslot. When the TCH type is set as half rate, there are actually two half-rate TCHs, and each occupies a HW timeslot.

Example

BIE is configured with data based on half rate mode. Its port 0 is connected with a BTS configured with two TRXs. Channel 0 of TRX 0 is "Primary BCCH", and channel 1 is "SDCCH8". Other channels of TRX 0 and all the channels of TRX 1 are configured to be "Full rate TCH". The networking topology of BTS is illustrated below:



Figure A-25 BTS networking topology in half rate mode

BSC Site 0

BIEPort 0

Step 1 HW timeslots

Table A-26 HW timeslot in half rate mode

HW0 HW1 HW2 HW3 HW4 HW5 HW6 HW7

0 T0C2 32 64 96 128 160 192 224

1 33 65 97 129 161 193 225

2 T0C3 34 66 98 130 162 194 226

3 35 67 99 131 163 195 227

4 T0C4 36 68 100 132 164 196 228

5 37 69 101 133 165 197 229

6 T0C5 38 70 102 134 166 198 230

7 39 71 103 135 167 199 231

8 T0C6 40 72 104 136 168 200 232

9 41 73 105 137 169 201 233

10 T0C7 42 74 106 138 170 202 234

11 43 75 107 139 171 203 235

12 T1C0 44 76 108 140 172 204 236

13 45 77 109 141 173 205 237

14 T1C1 46 78 110 142 174 206 238

15 47 79 111 143 175 207 239

16 T1C2 48 80 112 144 176 208 240

17 49 81 113 145 177 209 241

18 T1C3 50 82 114 146 178 210 242

19 51 83 115 147 179 211 243

20 T1C4 52 84 116 148 180 212 244





21 53 85 117 149 181 213 245

22 T1C5 54 86 118 150 182 214 246

23 55 87 119 151 183 215 247

24 T1C6 56 88 120 152 184 216 248

25 57 89 121 153 185 217 249

26 T1C7 58 90 122 154 186 218 250

27 59 91 123 155 187 219 251

28 60 92 124 156 188 220 252

29 61 93 125 157 189 221 253

30 62 94 126 158 190 222 254 RSL1

31 63 95 127 159 191 223 255 OML

RSL0

Step 2 Abis timeslot

Table A-27 Abis timeslots in half rate mode

bit

TS 0 1 2 3 4 5 6 7


1 T0C2 T0C3 T0C4 T0C5

2 T0C6 T0C7 T1C0 T1C1

3 T1C2 T1C3 T1C4 T1C5

4 T1C6 T1C7

…

30 RSL1

31 OML0 RSL0

----End



A.4.7 Ring Networking

Overview

Ring networking provides a site cascading mode different from star, chain and tree networking modes, but it supports star, chain and tree networking, as shown in Figure A-26.

Figure A-26 Ring networking modes

In ring networking mode, the 6 E1 ports provided by each group of BIEs are all valid, the number of TRXs supported by each E1 port should not exceed 15, and the total number of TRXs configured to all the 6 ports should not be larger than 30. When there is more than one site in the ring networking mode, as the signaling timeslots of different sites cannot be multiplexed, once a site increases, the number of TRXs supported by each E1 port will decrease.

Parallel transparent transmission is adopted when multiple BTSs are cascaded in ring networking mode.

During the configuration of ring networking, any two of the 6 E1 ports provided by each group of BIEs can form a ring.

In ring networking mode, sites are classified into loop site and tributary site. As for a loop site, only port 0 can serve as the incoming port, and port 1 as the outgoing port. As for a tributary site, port 0 must serve as the incoming port, while any of the other ports besides port 1 can serve as the outgoing port.




As shown in Figure A-26, sites 0, 1 and 2 in a are linked into a ring, and they are all loop sites; sites 3 and 4 are linked into a chain. Sites 0, 1 and 2 in b are linked into a ring, and they are all loop sites; sites 3 and 4 form a dual-chain connection together with the ring, and the three are taken on as tributary sites. The networking of c is similar to that of b, except that the normal ring and reverse ring are connected to the ports provided by BIEs of different groups. Sites 0, 1, 2 and 3 in d are linked into a ring, in which sites 0, 1 and 2 are loop sites, and site 3 is a tributary site.

The configuration of idle timeslots is not supported in the full-rate ring networking mode for the moment.

Ring networking includes full-rate ring networking and half-rate networking. Their differences are listed below:

The multiplexing ratio of RSL signaling in full-rate ring networking mode is 4:1, while that in half-rate ring networking mode is 2:1.

Some HW slots should be reserved in half-rate ring networking mode.

Brief introduction to 34BIE

34BIE must be used in ring networking mode.

The features of 34BIE are described as follows:

Discretionary switching of timeslots is adopted. As a result, the 256 HW timeslots of the BS interface can be allocated to voice channels or signaling channels at discretion, provided that the total number of timeslots is not more than 256.

Similarly, among the 32 E1 timeslots of the Abis interface, except that timeslot 0 is used for synchronization, and that timeslot 31 must be allocated to the OML, the other 30 timeslots can be allocated to voice channels or signaling channels at discretion, provided that the total number of timeslots is not more than 30.

The rate of LAPD is 64kbit/s, and statistics multiplexing mode is adopted. Every 4 signaling links can be multiplexed to one LAPD link. Please note that only RSLs can be multiplexed to each other, and that RSL cannot be multiplexed to OML.

SDCCH and BCCH do not occupy timeslots of the Abis interface.

Full rate ring networking

Principle for data configuration in full-rate ring networking mode:

Normal ring OML and reverse ring OML should be configured to each site on the ring (including tributary site). The normal ring OML is allocated to TS31 of the normal ring E1 port (achieved by TS switching of the superior sites). The reverse ring OML is allocated to TS31 of the reverse ring E1 port (when two BIE ports are linked into a ring,



the port connected with port 0 of the site is regarded as the normal ring port, and the other port as the reverse ring port).The TEI of the normal ring OML and that of the reverse ring OML must be configured as the minimum values among all the TEIs of the signaling link in the same TS with rate of 64kbit/s. It is recommended that the TEIs be configured as 0

OML and RSL cannot be multiplexed to each other. The multiplexing ratio of RSLs is 2:1.

When multiple sites are linked into a ring, parallel transparent transmission mode is adopted for the timeslots of the Abis interface.

All TCHs and RSLs should be configured with reverse ring Abis interface data.

Separated from TCH, BCCH and SDCCH do not occupy voice timeslots and their CICs and TS numbers are 65535 and their sub-TS numbers 255.

The sub-TS number is configured as 0, 1, 2 or 3 in the Signaling Channel Connection Table according to actual situations.

The signaling TSs (including TSs of OML and RSL) and traffic TSs (including TS of TCH) of different sites cannot be allocated to the same TS. In case of cabinet group combination, though multiple combined cabinet groups belong to the same site (only one OML required), the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.


The 256 HW timeslots (trunk circuits) of the BS1 interface are numbered sequentially. The TCH timeslots are allocated sequentially from 0 to 255, while the OML and RSL timeslots are allocated sequentially from 255 to 0.

Half rate ring networking

Principle for data configuration in half-rate ring networking mode:

Normal ring OML and reverse ring OML should be configured to each site on the ring (including tributary site). The normal ring OML is allocated to TS31 of the normal ring E1 port (achieved by TS switching of the superior sites). The reverse ring OML is allocated to TS31 of the reverse ring E1 port (when two BIE ports are linked into a ring, the port connected with port 0 of the site is regarded as the normal ring port, and the other port as the reverse ring port).The TEI of the normal ring OML and that of the reverse ring OML must be configured as the minimum values among all the TEIs of the signaling link in the same TS with rate of 64kbit/s. It is recommended that the TEIs be configured as 0.

OML and RSL cannot be multiplexed to each other. The multiplexing ratio of RSLs is 2:1.

When multiple sites are linked into a ring, parallel transparent transmission mode is adopted for the timeslots of the Abis interface.

All TCHs and RSLs should be configured with reverse ring Abis interface data.

Separated from TCH, BCCH and SDCCH do no occupy voice timeslots. Their CICs and TS numbers are 65535, and their sub-TS numbers are 255.




The sub-TS number is configured as 0 or 1 in the Signaling Channel Connection Table according to actual situations.

The signaling TSs (including TSs of OML and RSL) and traffic TSs (including TS of TCH) of different sites cannot be allocated to the same TS. In case of cabinet group combination, though multiple combined cabinet groups belong to the same site (only one OML required), the RSL TSs and TCH TSs of different cabinet groups cannot be multiplexed, i.e., the RSL TSs and TCH TSs of different cabinet groups are taken on as TSs of different sites.


The 256 HW timeslots (trunk circuits) of the BS1 interface are numbered sequentially. The TCH timeslots are allocated sequentially from 0 to 255, while the OML and RSL timeslots are allocated sequentially from 255 to 0

To support dynamic adjustment to channel rate, two HW timeslots are allocated to each TCH in the Radio Channel Configuration Table. When the TCH type is configured as full rate, the full-rate TCH occupies one timeslot, and the other one is idle in normal cases. When the channel rate is adjusted, i.e. one full-rate TCH is adjusted into two half-rate TCHs, each of the half-rate TCHs occupies a timeslot. When the TCH type is set as half rate, there are actually two half-rate TCHs, and each occupies a HW timeslot.

Examples

Ports 0 and 1 of the BIE are linked into a full-rate ring networking mode, in which five sites (Site0~Site4) are connected and each site is configured with two TRXs. Channel 0 of TRX0 is "Primary BCCH", and channel 1 is "SDCCH8". The other channels of TRX0 together with all the channels of TRX1 are configured as "Full rate TCH". "Site3" is a tributary site, and the other four sites are loop sites. Port 0 of the BIE serves as the normal ring port, and port 1 of the BIE as the reverse ring port. Port2 is the port of the superior site of "Site3". The networking topology of sites is shown as follows:

Figure A-27 Networking topology of sites in full-rate ring networking mode

Site 0BSC

BIEPort 0

Site 1 Site 3

Site 4 Site 2

Step 1 HW timeslots



Table A-28 HW timeslots in full-rate ring networking mode


0 S0T0C2 32 S2T0C6 64 S4T1

C2 96 128 160 192 224

1 S0T0C3 33 S2T0C7 65 S4T1

C3 97 129 161 193 225

2 S0T0C4 34 S2T1C0 66 S4T1

C4 98 130 162 194 226

3 S0T0C5 35 S2T1C1 67 S4T1

C5 99 131 163 195 227

4 S0T0C6 36 S2T1C2 68 S4T1

C6 100 132 164 196 228

5 S0T0C7 37 S2T1C3 69 S4T1

C7 101 133 165 197 229

6 S0T1C0 38 S2T1C4 70

102 134 166 198 230

7 S0T1C1 39 S2T1C5 71

103 135 167 199 231

8 S0T1C2 40 S2T1C6 72

104 136 168 200 232

9 S0T1C3 41 S2T1C7 73

105 137 169 201 233

10 S0T1C4 42 S3T0

C2 74 106 138 170 202 234

11 S0T1C5 43 S3T0

C3 75 107 139 171 203 235

12 S0T1C6 44 S3T0

C4 76 108 140 172 204 236

13 S0T1C7 45 S3T0

C5 77 109 141 173 205 237

14 S1T0C2 46 S3T0

C6 78 110 142 174 206 238

15 S1T0C3 47 S3T0

C7 79 111 143 175 207 239

16 S1T0C4 48 S3T1

C0 80 112 144 176 208 240

17 S1T0C5 49 S3T1

C1 81 113 145 177 209 241 S4RSL0/R

SL1

18 S1T0C6 50 S3T1

C2 82 114 146 178 210 242 S3RSL0/R

SL1





19 S1T0C7 51 S3T1

C3 83 115 147 179 211 243 S2RSL0/R

SL1

20 S1T1C0 52 S3T1

C4 84 116 148 180 212 244 S1RSL0/R

SL1

21 S1T1C1 53 S3T1

C5 85 117 149 181 213 245 S0RSL0/R

SL1

22 S1T1C2 54 S3T1

C6 86 118 150 182 214 246 OML4(rev

erse)

23 S1T1C3 55 S3T1

C7 87 119 151 183 215 247 OML4(no

rmal)

24 S1T1C4 56 S4T0

C2 88 120 152 184 216 248 OML3(rev

erse)

25 S1T1C5 57 S4T0

C3 89 121 153 185 217 249 OML3(no

rmal)

26 S1T1C6 58 S4T0

C4 90 122 154 186 218 250 OML2(rev

erse)

27 S1T1C7 59 S4T0

C5 91 123 155 187 219 251 OML2(no

rmal)

28 S2T0C2 60 S4T0

C6 92 124 156 188 220 252 OML1(rev

erse)

29 S2T0C3 61 S4T0

C7 93 125 157 189 221 253 OML1(no

rmal)

30 S2T0C4 62 S4T1

C0 94 126 158 190 222 254 OML0(rev

erse)

31 S2T0C5 63 S4T1

C1 95 127 159 191 223 255 OML0(no

rmal)

Step 2 Abis timeslots

Parallel transparent transmission is adopted for the TCH of the normal ring and reverse ring and RSL signaling channel on the Abis interface. Therefore, the timeslot sequencing of the TCH and that of the RSL signaling channel in the normal ring and reverse ring are the same on the Abis interface.

Table A-29 illustrates the distribution of the normal ring timeslots on the Abis interface.



Table A-29 Distribution of the normal ring timeslots on the Abis interface

0 1 2 3 4 5 6 7


1 S0T0C2 S0T0C3 S0T0C4 S0T0C5



4 S0T1C6 S0T1C7




8 S1T1C6 S1T1C7




12 S2T1C6 S2T1C7




16 S3T1C6 S3T1C7




20 S4T1C6 S4T1C7

…

22 S4RSL0 S4RSL1

23 S3RSL0 S3RSL1

24 S2RSL0 S2RSL1

25 S1RSL0 S1RSL1

26 S0RSL0 S0RSL1

27 OML4

28 OML3

29 OML2




0 1 2 3 4 5 6 7

30 OML1

31 OML0

Since the timeslot sequencing of the TCH and that of the RSL signaling channel in the normal ring and reverse ring are the same on the Abis interface. Only the sequencing of OML timeslots is listed, as shown in Table A-30.

Table A-30 Timeslots distribution on the Abis interface in the reverse ring

0 1 2 3 4 5 6 7

…

27 OML3

28 OML0

29 OML1

30 OML2

31 OML4

Step 3 Transparent transmission timeslots of the loop site in the normal ring

Table A-31 Distribution of transparent transmission timeslots on the Abis interface in the normal ring (a)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7

0 Synchronization TS Synchronization TS




4 S0T1C6 S0T1C7

5 S1T0C2 S1T0C3 S1T0C4 S1T0C5 S1T0C2 S1T0C3 S1T0C4 S1T0C5







0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7












21

22 S4RSL0 S4RSL1 S4RSL0 S4RSL1




26 S0RSL0 S0RSL1

27 OML4 OML4

28 OML3 OML3

29 OML2 OML2

30 OML1

31 OML0 OML1

BTS0 BTS1

Table A-32 Distribution of transparent transmission timeslots on the Abis interface in the normal ring (b)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7


1

2




0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7

3

4

5

6

7

8




12 S2T1C6 S2T1C7

13

14

15

16





21


23

24 S2RSL0 S2RSL1

25

26

27 OML4

28

29

30

31 OML2 OML4

BTS2 BTS3

Step 4 Transparent transmission timeslots of the loop site in the reverse ring



Table A-33 Distribution of transparent transmission timeslots on the Abis interface in the reverse ring (a)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7





















20 S4T1C6 S4T1C7

21

22 S4RSL0 S4RSL1





27 OML3 OML3

28 OML0 OML0




0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7

29 OML1 OML1

30 OML2

31 OML4 OML2

BTS0 BTS1

Table A-34 Distribution of transparent transmission timeslots on the Abis interface in the reverse ring (b)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7









8 S1T1C6 S1T1C7

9

10

11

12




16 S3T1C6 S3T1C7

17

18

19

20

21



0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7

22

23 S3RSL0 S3RSL1

24

25 S1RSL0 S1RSL1


27 OML3

28 OML0

29

30

31 OML1 OML0

BTS2 BTS3

----End

Initial Configuration M900/M1800 Base Station Controller Data Configuration Manual

B Correspondence Relation between Data Table and DBF Files

Huawei Technologies Proprietary

B-1


Configuration

Frame Description Table framedes

Slot Description Table shelfdes

Master Node Description Table nodedesc

HW Description Table hwgrpdes

Module Description Table auxiliar

Clock Description Table clockdes

Clock Configuration Table clkconfi

GCKS Clock Configuration Table (SM) clkcfg

Software Parameter

Public Parameter Table pubparam

Module Parameter Table modparam

Common Maximum Tuple Table pmaxtup

Module Maximum Tuple Table mmaxtup

Software Parameter Table softpara

Timer Table timer

BTS Software Parameter Table btspara

Message Filter Table msgfil

AM Configuration

AM Frame Description Table amframe

AM Board Description Table amboard

B Correspondence Relation between Data Table and DBF Files M900/M1800 Base Station Controller


B-2 Huawei Technologies Proprietary Issue 07 (2006-08-20)

Configuration

AM Module Description Table ammodule

AM Alarm Environment Variable Table amenvic

AM Adjacent Module OPT Table amadj

Signaling Link Table sigroute

E3M CLK Source Output Selection Table e16clk

E3M E1 Configuration Table e16bde1

AM GCKS Configuration Table amckscfg

AM Alarm Screening Table amwrnmsk

Local office

Local Office Information Table locexinf

BSC Cell Table bsccell

Frequency Hopping Table hopdata

TRX Configuration Table bsctrx

Radio Channel Configuration Table Abiscir

LAPD Semi-perm. Connection Table lapdsemi

LAPD Signaling Connection Table lapdsglk

BSC BIE Description Table bscbiesd

BSC BIE Active/Stby. Group Description Table

biegrpc

Site BIE Trunk Mode Description Table biestdp

Site BIE Configuration Table strelaym

Signaling Channel Link Table sgcanlt

MSM and FTC Mapping Table smiftc

Service Channel Connection Table transglt

GMEM Configuration Table memip

Board Software Loading Table Cardlod

BSC BIE Semi-permanent Connection Table Bscbiesp

Site




B-3

Site

Site Description Table siteinfo

Carrier Configuration Table rccfg

Site Frame Description Table shelfinf

Site Slot Description Table btsslot

Site Software Configuration Table softidx

Environment Alarm Configuration Table btsenvi

Antenna and Feeder Configuration Table reactive

Cell

System Information Table symgdatl

Cell Configuration Table cellcfg

Cell Allocation Table cealotl

BA1 (BCCH) Table ba1

BA2 (SACCH) Table ba2

Cell Attribute Table cellattr

Cell Alarm Threshold Table cellalm

Cell Call Control Table callctrl

Cell Call Control Parameter Table celcalmp

Cell Module Information Table cgitbl

Handover

Handover Control Table swctrl

Cell Description Table celldes

External Cell Description Table extcell

Adjacent Cell Relation Table nebcell

Filter Table filterd

Penalty Table penalty

Emergency Handover Table urgedat

Load Handover Table clsdata

Normal Handover Table nordata

Fast-Moving Handover Table movedata

B Correspondence Relation between Data Table and DBF Files M900/M1800 Base Station Controller


B-4 Huawei Technologies Proprietary Issue 07 (2006-08-20)

Handover

Intra-cell Continuous HO Control Table intraho

GSM0508 Handover Table cellho2

Concentric Cell Handover Table circswit

Power

Power Control Selection Table pwrctls

Ordinary Cell Power Control Table cellpwrc

BTS Power Control Table btspwrc

MS Power Control Table mspwrc

HWII Power Control Table hw2pwrct

Channel

Radio Channel Management Control Table freechpr

HW II Channel Allocation Table chanall

Trunk

Office Direction Table office

Trunk Group Table tkgrp

Trunk SS7 Table no7info

Trunk Circuit Table tkcircui

Signaling Link Table sigroute

Pb Interface Trunk Circuit Table pbinterf

Signaling

CIC Module Table cicmdl

MTP DEP Table mtpdsp

MTP Route Table mtproute

MTP Linkset Table mtplinks

MTP Link Table mtplink




B-5

Signaling

SCCP DSP Table sccpdpc

SCCP SSN Table sccpssn

PCIC Module Table pcicmodu

Alarm

BSC Alarm Parameter

BTS Alarm Information Configuration Table warncfg

BTS Alarm Environment Variable Table envicfg

BTS Alarm Parameter

Alarm Information Parameter Table warncfgb

Alarm Environment Parameter Table envicfgb

Alarm Information Parameter Table warninf

BM Alarm Screening Table warnmask

Operation

Data Operation Log opertrac

Maintenance Log Review whtract

Command Line Parameter Table cmlnpard

The above information is saved in C:%\OMC\BSC\BAM\DBF\SYSTEM\TABLE.DBF. it can be viewed using such database software as FOXPRO, LOTUS1-2-3 and APPROCH. If the content of TABLE.DBF changes due to modification to the design, this file will be taken on as the basis.

02-A Fundamental Knowledge

Documents

Transcript of 02-A Fundamental Knowledge