51786155 HUAWEI BSC6000V900R008 General Introduction 2

2008-05

www.huawei.com

HUAWEI Confidential

Security Level: Internal Use

HUAWEI BSC6000 V900R008

General Introduction

Wireless Case and Training

ISSUE1.0

HUAWEI TECHNOLOGIES Co., Ltd. Page 2HUAWEI Confidential

This course introduces the difference of version

specification and structure between BSC6000V900R008

and former versions. Especially, some new features and

function are introduced.


After learning this course, you should understand and master the

following points:

BSC6000V900R008 specification

BSC6000V900R008 hardware changes

BSC6000V900R008 new function and features


HUAWEI BSC6000V900R008 Product Description

HUAWEI BSC6000V900R008 Features Description


ChapterChapter 11 BSC6000V900R008BSC6000V900R008 System DescriptionSystem Description

Chapter 2 BSC6000V900R008 New Features


BSC6000V9R8 Specification Description

Specification Items V9R1 V9R3

V9R8

BM/TC Separated BM/TC Combined A Interface Over IP

TRX Number (FR) 2048 2048 2048 2048/1792 2048

TRX Number (HR) 1024 2048 2048 2048/1792 2048

Full Configuration Cabinet Number 3 ～ 4 2 ～ 4 2 ～ 4 1 1

A Interface Circuits 15360 15360 15360 15360 15360

GxPS Subrack Number 1 ～ 4 1 ～ 4 1 ～ 4 1 ～ 4 1 ～ 4

GTCS Subrack Number 1 ～ 4 1 ～ 4 1 ～ 4 NA NA

Abis Interface E1Number 640 576 576 576/352 576

Abis Interface STM-1Number 20 18 18 18/11 18

A Interface E1Number 512 512 512 448 NA

A Interface STM-1Number 8 8 8 8 NA

Pb Interface E1 Number 224 224 224 128 224

Pb Interface STM-1Number 7 7 7 4 7

Gb Interface Throughput NA NA 256Mbps/512Mbps 256Mbps/512Mbps 256Mbps/512Mbps


High Integration: A single cabinet can support 2048 TRXs

2048TRXs can be supported by one single BSC6000V900R008 cabinet and built-in PCU can be integrated ， which can save much space of central equipment room.

Power consumption will decrease a lot because of high integration. Typical power consumption of TC/BM combined configuration is 3340W when E1 transmission is used on A/Abis interface, and 2325W, when STM1 is used on A Interface and E1 is used on Abis Interface.

+ =

PCU6000 External PCU

BSC6000V900R008 Full capacity: 2048TRXs One single cabinet Built-in PCU

V900R001/V900R003 Full capacity: 2048TRXs 4 cabinets 4BM+4TC


=+

BM/TC Separated

BM/TC Combined

GMPS/GEPS Logical DPU board must

be GDPUX where physical board is DPUc

No Ater interface boards

When BSC and MSC are located in the same equipment room, combined BM/TC is recommended, i.e., GTCS is not needed, so the configuration is more flexible.

When BSC and MSC are in different equipment rooms, separated BM/TC with remote TC will be used.

GMPS/GEPS Ater Interface

boards are needed.

GTCS DPUa and DPUc can be

used together, configured as GDPUC and GDPUX

Ater interface boards

More Flexible Configuration: Separated and Combined BM/TC


One Single Subrack supports 768TRX at most

Name Physical （ 4CPU) Type Function

GXPUM

CPU0 CPU0 Algorithm, Resource Management ， PS signal processing

CPU3 CPUP Built-in PCU O&M and Cell Broadcast

CPU1

CPUX

　CPU2 　

GXPUT

CPU0 CS service and signaling processing

CPU1 　CPU2 　CPU3 　

Logical changes ： CPUs of XPU board are classified as CPU0, CPUX, CPUP. CPUX performs the processing of CS service and signaling. CPUP performs the OM (operation maintenance) of built-in PCU and Cell Broadcast.

CPUP corresponds to CPU3 of GXPUM board. If system doesn’t support built-in PCU

and Cell Broadcast function, CPUP will be unused.

One single subrack supports 768TRX at most. GMPS is limited by slots, and at most 512TRX(100% HR) can be supported. GEPS supports 768TRX(100% HR) at most.


Built-in PCU is Supported

F

G

2

a

IP route transmitting protocol

function

8FE ports or 2GE ports

IP over FE/GE/IWF

P

E

U

a

Supports HDLC over

E1/T1

32 E1/T1

D

P

U

d

Each DSP supports

48 packet channels

G

F

G

U

G

G

E

P

U

G

G

D

P

U

P

1024 MCS-9 PDCH

processing capability

Packet data link processing

128M transmission throughput

Supports Gb Interface

Supports UDP/IP protocol access

function

64M transmission throughput

Supports Gb Interface

Supports Frame Reply E1

access function

Traffic Processing Board

Gb Interface

Board


One GDPUP supplies 1024 MCS-9 PDCH channels at most;

Supports 512M throughput at most;

Supports 8192 MCS-9 active PDCH at most;

Pocket processing boards use resource pool mode, which is more reliable and

steady;

Supports SGSN resource pool, which makes the traffic reliable and assured.

PCU6000

Built-in PCU Provides Advanced PS Performance

14 15 16 17 18 19 20 21 22 23 24 25 26 27GOIUA

GOIUA

GOIUA

GOIUA

GEPUG

GEPUG

GEIUB

GEIUB

GEIUB

GEIUB

GXPUM

GXPUM

GXPUT

GXPUT

GTNU

GTNU

GSCU

GSCU

GDPUP

GDPUX

GDPUX

GDPUX

GGCU

GGCU

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

GOMU GOMU

BSC6000V900R008


BSS Over IP is Supported

A Interface

Over IP

Abis

Interface

Over IP

FG2a

IP route transmitting protocol function8FE ports or 2GE portsSupports IP over FE/GE/IWF

GOUa

IP route transmitting

protocol function

Supports 2 optical ports

Supports IP over GE

GFGUA

GOGUA

GFGUB

GOGUB

Supports 6144 voice circuits

Support A interface over

IP( only HUAWEI Core Network

are compatible)

384TRX ， 100% Half Rate

Supports FE/GE Abis

interface


Supports GE Abis interface

Support 6144 voice circuits

Support A interface over IP

( only HUAWEI Core Network

are compatible)


Abis over HDLC is Supported

PEUa

Supports HDLC over

E1/T1

Supplies 32E1/T1

GEHUB


TRX Number each E1 can support is

determined by traffic type, activation factor,

etc. Typical configuration is 24TRXs(FR) or

21TRXs(HR) per E1.

Supports Hub BTS network structure using

HDLC mode


More Powerful Processing Capability GDPUX board is introduced in BSC6000V900R008 system for circuit traffic

processing

V9R1/V9R3 just support DPUa board, configured as GDPUC.

DPUX supports 3740 voice circuits frame conversion of TRAU/IP/HDLC or

TRAU/RTP （ A interface over IP), 170 voice circuits per DSP.

DPUX supplies 960 voice circuit traffic coding (FR/HR) at most

DPUa/DPUc are the physical boards providing circuit switching processing DPUa, used in GTCS subrack, should be configured as GDPUC, and can’t be used in

BM/TC combined mode.

DPUc is used in BM/TC combined mode and remote GTCS subrack of BM/TC separated

mode, which is configured as GDPUX.

In separated mode, GTCS subrack supports DPUa and DPUc mixed inserting, where

DPUa is configured as DPUC and DPUc is configured as DPUX.

DPUd is the physical board providing packet service processing DPUd processes the built-in PCU packet switching traffic, which is configured as GDPUP.


Scene One TC/BM combined or separated

If GTCS is configured as remote subrack, TC/BM separated mode have to be

chose.

If GTCS is configured as local subrack, i.e., BSC and MSC are in the same

equipment room, BM/TC combined mode is recommended. The advantage is low cost, fewer racks and boards, less space and power consumption.

If E1/T1 are used on A interface, capacity of GTCS will be reduced, so optical interface

boards is recommended on A interface.

If GTCS is local and configured as separated mode, STM-1 on Ater interface is

recommended to facilitate cable routing.

=+

BM/TC separated

BM/TC combined

Which mode is

better, TC/BM

combined or

separated？


Scene Two Built-in or external PCU

Built-in PCU will be recommended in new V9R8 project.

Advantages of built-in PCU Low cost;

Better PS performance;

Simpler data configuration and hardware installation.

External PCU External PCU can be used in expansion project, BSC32, V9R3 or lower version. For new

office of V9R8, external PCU is not recommended;

When Abis interface is over HDLC or IP, external PCU is not supported.

Which is better, built-

in or external PCU？


Scene Three A interface over IP or not

Only HUAWEI core network equipment is compatible, because in A over IP

configuration, A interface IP protocol is not the standard one and other vender’s

equipments is not supported to connect with HUAWEIBSC6000 currently.

Advantages of A interface over IP IP transmission complies with 3GPP roadmap, which is benefit for future investment.

Wide transmission band leads to convenient development of new service for operator.

Low cost, short construction period, convenient operation, less expense of CAPEX and

OPEX.

TrFO function is supported, where TC resource, voice coding and decoding process will

be reduced, and voice quality will be enhanced.

Problem: external clock resource is needed.

How to choose A

interface over IP?


Scene Four How to choose Abis over HDLC? Abis interface support three transmission modes:

Abis over TDM: Physical transmission medium is E1/T1/STM-1. Abis over HDLC: Physical transmission medium is E1/T1, and STM-1 is not

supported. Save Abis interface transmission resource and reduce CAPEX. 24TRXs(FR) or 21TRXs(HR) per E1. Improve efficiency of Abis interface resource by 30%~40%.

Abis over IP ： Supports FE/GE interface. Low CAPEX and it’s profitable for 2G/3G transmission jointly. IP transmission has better adaptability and accords with packet service flow mode. Simple configuration, Abis interface physical link resource and corresponded channel

resource of Um interface need not to be considered.

Abis interface transmission optimization will be mainly used in the sites

lack of transmission resource, so it will be decided by the actual

transmission network structure.

Abis interface supports TDM, IP and HDLC mode.

How to choose？


License Change

V900R001 License control algorithm:

All of License items are controlled by foreground hosts.

License control algorithm after TR6 of V900R003C01:

Most of the License items are controlled by background configuration.

Partial License items relative to service will be controlled by foreground hosts.

V900R008C01 supports network license, and the control mechanism is

the same with V900R003.


SN Characters License Items Instruction Type SN Characters License Items Instruction Type

1 LGMIEMLPP Whether to activate the eMLPP function or not

Function control item

20 LGMIBTSLS Number of TRX supporting BTS local switching

Resource control item

2 LGMILCS Whether to activate the LCS(CELL ID+TA) function or not


21 LGMIBSCLS Number of TRX supporting BSC local switching


3 LGMISYSHO Whether to activate intersystem handover & reselection


22 LGMIFLEXABIS Number of TRX supporting FLEX ABIS


4 LGMIGRDAC Whether or not to activate the Channel Reserved function


23 LGMIMSCPOOL Support MSC pool function Function control item

5 LGMIEGPRS Number of the TRX supporting EDGE


24 LGMIGBFR Maximum number of 64 kbit/s Gb links supported by GB Over FR


6 LGMIHR Number of the TRX supporting half-rate


25 LGMIGBIP Maximum number of 64 kbit/s Gb links supported by GB Over IP


7 LGMIAMR Number of the TRX supporting AMR


26 LGMIQOS Whether to activate the QoS function


8 LGMITRXNO Number of the TRX supporting AMR


27 LGMIEDA Whether to activate the EDA function


9 LGMIDIVNO Number of DTRU which Transmitter is Diversity Transmitter


28 LGMIDTM Whether to activate the DTM function


10 LGMITRU60WNO

Number of DTRU which works as Multi Transceiver


29 LGMIDYNPBT Number of TRXs that support dynamic PBT


Blue characters: items in V9R8 controlled by foreground

V9R1 control items

V9R3 new control items


License Control Items


SN Characters License Items Instruction Type SN Characters License Items Instruction Type

11 LGMIDULNO Number of DTRU which works as Multi Transceiver


30 LGMIIPTRX Number of TRXs that support Abis Over IP


12 LGMI4DIVNO Number of DTRU which Transmitter is Diversity Transmitter


31 LGMIHDLCTRX Number of TRXs that support transmission optimization on the Abis interface


13 LGMIPBTNO Number of DTRU which Transmitter is PBT


32 LGMIHUBTRX Number of TRXs in the HubBTSs that support HDLC


14 LGMISTSNO Number of the site supporting satellite transmission


33 LGMICS34 Whether to activate CS3/CS4 Resource control item

15 LGMIEXCELLNO Number of the extended cell Resource control item

34 LGMINMO1 Whether to activate network operation mode one


16 LGMICBSNO Number of the cell supporting broadcasting short message service


35 LGMIGBFLEX Whether to activate the Gb Flex function


17 LGMISEMICON Number of semipermanent connection


36 LGMIGBR Whether to activate the GBR Qos function


18 LGMINC2 Number of Cell supporting NC2


37 LGMISOFTSYN Whether to activate the soft synchronization function


19 LGMINACC Number of Cell supporting NACC


38 LGMITC2MGW Whether to activate the A Over IP function


License Control Items

Blue characters: items in V9R8 controlled by foreground

V9R1 control items




Chapter 1 BSC6000V900R008 System Description

Chapter 2Chapter 2 BSC6000V900R008BSC6000V900R008 New FunctionNew Function


BSC6000V900R008 New Function Lists

Compared with BSC6000V900R003, BSC6000V900R008 new function

and Feature are listed as follows:

Index ItemsInde

xItems

1 Built-in PCU 8 Abis Transmission Optimization

2 GBSS IP Solution 9 Hub BTS in HDLC Mode

3 Enhanced MML 10 Dynamic Transmit Diversity (PBT)

4 Support Distributed BTS(DBS3036) 11 BCCH Aggressive Frequency Reuse

5 Support QTRU 12 Um Interface Soft Synchronization

6One single Rack Supports 2048TRX (including TC and PCU

13 GBAM/GOMU system one-key recovery

7 Forced EFR function in BSC


New Function Description

Index Items Function Introduction

1Built-in

PCU

1, Support built-in and external PCU, but only one configuration mode can be used at the same time.

2, When Abis is over HDLC/IP, only built-in PCU could be used.

3, Packet features: supports Gb over FR/Gb over IP, supports SGSN POOL.

2 GBSS IP

1, Abis over IP

The Abis over IP function provides FE and GE interfaces and supports the IPv4 protocol.

The BSC connects to the BTS through a LAN or WAN, depending on the location of the BSC and BTS.

The Abis over IP function supports active/standby mode and load sharing mode, and enjoys very high reliability.

The GBSS equipment realizes the following QoS mechanism, and provides end-to-end QoS assurance.

2, A over IP

After the IP technologies are applied on the A interface, it is unnecessary to conduct inter-conversion between the

GSM voice codes and 64 kbit/s PCM codes. Therefore, the BSS equipment does not realize the TC function. The

TC function is realized in the MGW. Huawei BSS equipment extends the A interface protocol. Supporting the TrFO

function, the BSS equipment can reduce the coding event count and improve the voice quality.

3, Gb over IP

The function can simultaneously support two end-to-end communication modes between the PCU and the SGSN:

frame relay (FR) and IP network. The NS module chooses different uplink and downlink handling processes based

on transmission modes. The FR uplink and downlink handling process is performed according to the existing

implementation mode. For the network transmission mode, the uplink and downlink handling process of the IP

network is used.

4, Support BTS CLK IP configuration function.


New Function DescriptionIndex Items Function Introduction

3 Enhanced MML

Huawei GSM BSS (GBSS) supports NE operation and maintenance through MML

commands running on the M2000 or LMT. Compared with Graphic User Interface (GUI),

MML is more effective. By running MML script files, you can configure and maintain

multiple NEs concurrently or perform multiple steps of operations on one NE concurrently.

MML improves maintenance efficiency, reduces improper manual operations, and greatly

reduces operation and maintenance cost of telecom operators.

4

Support

Distributed

BTS(DBS3036)

1, Support distribution BTS DBS3900(BBU+RRU)

2, Support BTS3036

3, Version V900R008C02 support mRRU

5 Support QTRU1, Support QTRU.

2, Support QTRU dynamic power assign algorithm.

6

One single Rack

Supports

2048TRX

(including TC and

PCU

1, Support BM/TC combined model.


New Function DescriptionIndex Items Function Introduction

7 Forced EFR function in BSC

If the application of EFR function can improve speech quality and both the MS

and the BSC support the EFR function, the EFR function can be forcedly

enabled on the BSC side if EFR is unavailable because the MSC does not

support it. In this case, EFR should be shielded on the MSC side to avoid

assignment failure or handover failure. This function is mainly applied in the

areas with poor speech quality.

8 Abis Transmission

Optimization

The Abis interface transmission optimization function converges the Abis

timeslots of a BTS on an HDLC channel, detects and compresses the idle voice

frames by using the VAD technology, and sends the compressed data packets

over the Abis HDLC channels for statistical multiplexing. This can greatly

improve the E1/T1 bandwidth utilization rate.

9 Hub BTS in HDLC Mode

The convergence node is referred to a Hub BTS. The BTS under the Hub BTS

is referred to a leaf node. The Hub BTS processes data in HDLC frame format.

The occupied Abis timeslot is referred to an HDLC channel. The function,

together with the Abis interface transmission optimization function, detects and

compresses the data to be transmitted of a BTS and the lower-level leaf BTSs,

encapsulates the data into HDLC frames, converges the data on the HDLC

channel, and finally forwards the data. This can improve the utilization rate of

Abis resources between the Hub BTS and the BSC.




10

Dynamic

Transmit

Diversity

(PBT)

The dynamic Transmit Diversity technology refers to the transmit diversity technology at timeslot

level. When a subscriber occupies a dedicated timeslot, the quality of the subscriber’s traffic is

under the monitoring of a measurement report. When the system finds that the conversation

quality of the subscriber is lower than the threshold, it enables the dynamic Transmit Diversity

function, and allocates a timeslot with the same number from an adjacent carrier to the

subscriber. The signals carried on the two timeslots are the same, and the phases are also the

same. The signals are sent out through different transmit ports, and are then enhanced through

signal combination. Consequently, the reception quality is improved. When the adjacent channel

is occupied by other subscribers, the system enables the intra-cell handover, and hands over the

subscriber to an idle channel so that the adjacent channel can be used for the PBT. Because the

reception quality of the subscriber is good during handover, the handover does not cause call

drop.

11

BCCH

Aggressive

Frequency

Reuse

The function allows the operator to densely multiplex frequencies on BCCH carriers. In networks

with limited frequency resources, this function can reduce the frequencies occupied by BCCH

carriers, and provide more frequencies for the traffic channels. This function can increase system

capacity and reduce investment in sites, without changing the original hardware.



12

Um Interface

Soft

Synchronization

In the soft synchronization mode, Um interface software is used to realize BSC-wide

synchronization. The software adjusts the frame number, timeslot, and offset of the BTSs to

synchronize all BTSs under the BSC.

13

GBAM/GOMU

system one-key

recovery

The operation system of Huawei BSS equipment includes GBAM and GOMU. Both of them

adopt the Linux operating system. If the operating system is damaged, you can use the

system recovery disk delivered with the equipment and execute a one-key recovery command

to recover the operation & maintenance system and restore the default configuration data. The

function can simplify the maintenance work and recover the system quickly.



This course mainly introduces three points as follows:

BSC6000 V900R008 version specification and hardware

structure changes

BSC6000 V900R008 combined and separated configuration

BSC6000 V900R008 new function and features


Abbreviation

Physical Logical English Full Name

OMUb GOMU GSM Operation Maintenance Unit

GCUa GGCU GSM General Clock Unit

SCUa GSCU GSM Switching and Control Unit

TNUa GTNU GSM TDM switching Network Unit

XPUaGXPUM GSM eXtensible Processing Unit for Main service

GXPUT GSM eXtensible Processing Unit for Transmission

English Abbreviation English Full Name

GBCR GSM BSC Control Processing Rack

GBSR GSM BSC Service Processing Rack

GBAM GSM Back Administration Module

GMPS GSM Main Processing Subrack

GEPS GSM Extended Processing Subrack

GTCS GSM TransCoder Subrack

Cabinet and Subrack Abbreviation

Boards Abbreviation Collection


AbbreviationPhysical Logical English Full Name

DPUa GDPUC GSM Data Processing Unit for CS service

DPUc GDPUX GSM Data Processing Unit for eXtensible service

DPUd GDPUP GSM Data Processing Unit for PS service

EIUa

GEIUB GSM E1/T1 Interface Unit for aBis

GEIUP GSM E1/T1 Interface Unit for Pb

GEIUT GSM E1/T1 Interface Unit for aTer

GEIUA GSM E1/T1 Interface Unit for A

OIUa

GOIUB GSM Optic Interface Unit for aBis

GOIUP GSM Optic Interface Unit for Pb

GOIUT GSM Optic Interface Unit for aTer

GOIUA GSM Optic Interface Unit for A

FG2a

GFGUA GSM Fast ethernet and Gigabit ethernet Unit for A

GFGUB GSM Fast ethernet and Gigabit ethernet Unit for aBis

GFGUG GSM Fast ethernet and Gigabit ethernet Unit for Gb

GOUaGOGUA GSM Optic Gigabit ethernet Unit for A

GOGUB GSM Optic Gigabit ethernet Unit for aBis

PEUaGEHUB GSM E1/T1 High level Data Link Control Unit for aBis

GEPUG GSM E1/T1 Packet Unit for Gb

HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential

Thank You

www.huawei.com

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51786155 HUAWEI BSC6000V900R008 General Introduction 2