BSC6810 Hardware System Structure

HUAWEI TECHNOLOGIES CO., LTD.

All rights reserved

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Internal

BSC6810 Hardware System Structure

BSC6810V200R009

HUAWEI TECHNOLOGIES CO., LTD. Page 2All rights reserved

RNCs(Radio Network Controller)and Node

Bs compose the UTRAN (UMTS Terrestrial

Radio Access Network)

RNC performs the following main functions:

system information broadcasting, handover,

cell resource allocation, radio resource man

agement and so on,

Huawei RNC is named as BSC6810 and B

SC6800


Upon completion of this course, you will be

able to:

Master the system structure of BSC6810

Master the functions of the boards of

BSC6810

Master the signal flows in BSC6810


《 RNC Product Description 》《 RNC Hardware Description 》


Chapter 1 BSC6810 System OverviewChapter 1 BSC6810 System Overview

Chapter 2 BSC6810 hardware structureChapter 2 BSC6810 hardware structure

Chapter 3 BSC6810 Signal FlowsChapter 3 BSC6810 Signal Flows

Chapter 4 BSC6810 System hardware ConfigurationChapter 4 BSC6810 System hardware Configuration


Position of RNC in WCDMA System

RNC

RNC

NodeB

NodeB

NodeB

CS

PS

CBC

UE UTRAN CNUu Iu

Iu-CS

Iu-PS

Iu-BC

Iur

Iub

Iub

Iub


Capacity

It supports up to 51,000 equivalent voice channels

It supports up to 3,264Mbit/s PS service processing

(UL+DL)

It supports up to 1,700 NodeBs and 5,100 Cells

It provides Single-Subrack Solution: supports 6,000

equivalent voice channels and 384Mbit/s PS data ca

pacity;

6,0006,000

15,00015,000

24,00024,000

33,00033,000

42,00042,000

51,00051,000


ChapterChapter 22 BSC6810BSC6810 hardwarehardware structurestructure

2.12.1 BSC6810BSC6810 cabinetscabinets andand subrackssubracks

2.22.2 BSC6810BSC6810 boardsboards

2.32.3 BSC6810BSC6810 cablescables


Item Specification

Outline dimensioning 2200mm（ H） ×600mm

（W） ×800mm（ D）

Height of the available

space 46U

Weight Empty cabinet ≤： 140kg， Full

y-configured cabinet ≤： 350kg

power

Power consumption of the RSR

cabinet which is in full

configuration is 4,650 W. Power

consumption of the RBR cabinet

which is in full configuration is

4,660 W.

(1) Air inlets

(2) Subrack (3) Air defence frame

(4) Power distribution box

(5) Cable rack (6) Back cable trough

BSC6810 Cabinets


1) Fan box (2) Mounting ear (3) Guide rail

(4) Horizontal front cable trough (5) Board (6) Port for monitoring signal cable

(7) DC power input port (8) Grounding screw (9) DIP switch

BSC6810 Subrack

BSC6810 subrack use the 12 U shielding subrack of Huawei.

There are 28 slots in the subrack, the subrack backplane is positioned in the

middle, and front and rear boards are installed on both sides of the backplane.







RNC Logical Structure

Logically, the RNC consists of the following subsystems: switching subsystem,

service processing subsystem, transport subsystem, clock synchronization

subsystem, Operation and Maintenance (OM) subsystem, power subsystem,

and environment monitoring subsystem.

LMT/M2000

clock synchronization subsystem

switching subsyste

m

transport

subsystem

service processing subsystem



BAMBAM

RNC

To NodeB

To MSC

To neighboring RNC

To SGSN

Clock (optional)


GE Switching Subsystem

The RNC switching subsystem consists of the switching and control unit and high-

speed backplane channels in each subrack

Each switching and control unit shown in figure is implemented by an SCUa board

Switching and control

unit

Other board

Other board

Other board

Other board

Other board

Other board


unit


unitRSS

RBS

RBS

High-speed backplane channel

Network cable


Functions of GE Switching Subsystem

Providing internal Medium Access Control (MAC) switching for the RNC a

nd enabling convergence of ATM and IP networks

Providing port trunking for the RNC

Connecting subracks of the RNC

Providing a service switching channel for the service processing subracks

of the RNC

Providing an OM channel for the service processing subracks of the RNC

Distributing timing signals and RFN signals to the service processing boar

ds of the RNC


Position of the SCUa Board in WRSS

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

O M U a

20 21

RINT

RINT

RINT

RINT

24 25 26 27

O M U a

22 23

CSU a

SPUa

SPUa

CSUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

GCUa

GCUa

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board

Backplan

e

Front

board


Position of the SCUa Board in WRBS

Backplan

e

Front

board

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

RINT

RINT

RINT

RINT

24 25 26 27

SPUa

SPUa

SPUa

SPUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

DPUb

DPUb

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board RINT

20

RINT

21

RINT

22

RINT

23


SCUa Board Introduction

Port Name FunctionPort

Type

10/100/1000BASE-T0 ～ 11 10M/100M/1000M Ethernet ports. The ports

are used for the inter-subrack connection.

RJ45

COM － Serial port for commissioning RJ45

CLKIN

－ Port for inputting reference clock source. Th

is port is used to receive the 8 kHz and the

1PPS timing signals from the GCUa/GCGa

board.

RJ45

TESTOUT－ Port for testing timing signal output. This po

rt is used to test the timing signal output 。SMB male

Main control board for configuration and maintaining of the local subrack

Support GE Switching for local subrack

Support synchronous clock and time synchronous information to other boards of the lo

cal subrack

Located at the 6th and 7th slot of the basic business subrack and spread business sub

rack, and be the host and standby

The SCUa boards work in full-interconnection and dual-plane mode and enable connec

tion of subracks for the RNC

SCUa

PARC

RUN

ALM

ACT

CO

M

TESTOUT

CL

KIN

ACTLINK

10

/10

0/1

00

0B

AS

E-T

RESET

ACTLINK

8

9

0

1

2

3

4

5

6

7

11

10

ACTLINK


High-speed backplane channel

RBS

common service

processing

unit

SSN0

SSN1

SSN2

SSN3

signaling processing unit

data processing unit

DSP

DSP

DSP

DSP

SPM

SSN0

SSN1

SSN2

SSN3

signaling processing unit

data processing unit

DSP

DSP

DSP

DSP

SPM

SCUa SCUaRSS

Ethernet cable IPC (inter Process communication)

Service Processing Subsystem Introduction


Components of Service Processing Subsystem

The RNC service processing subsystem consists of the common service pr

ocessing unit (CSUa), signaling processing unit (SPUa), and data processi

ng unit (DPUb).

SPM （ Service Process Module ） An SPM works as a resource pool. The resources in an SPM are divide

d into four groups. Each group is controlled by a subsystem of the SPU

a board. Therefore, each subsystem of the SPUa board is teamed with

11 DSPs on a DPUb board

The 11 DSPs teamed with one subsystem of the SPUa board are distrib

uted on two DPUb boards. Five DSPs are located on one DPUb board,

and the other six DSPs are located on the other DPUb board.

The RSS subrack can be configured with 2 SPMs and an RBS subrack

with 3 SPMs. The RNC supports a maximum of 17 SPMs


Structure of SPMs


common service processing unit

CSUa

Position of Service Processing Subsystem Board on WRSS

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

O M U a

20 21

RINT

RINT

RINT

RINT

24 25 26 27

O M U a

22 23

CSU a

SPUa

SPUa

CSUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

GCUa

GCUa

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board

Backpla

ne

Front

board

SPM is composed by SPUa and DPUb in WR

SS


Position of Service Processing Subsystem Board on WRBS

Backplan

e

Front

board

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

RINT

RINT

RINT

RINT

24 25 26 27

SPUa

SPUa

SPUa

SPUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

DPUb

DPUb

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board RINT

20

RINT

21

RINT

22

RINT

23

SPM is composed by SPUa and DPUb in WRBS


Interface name function port type

ETH0~ ETH3 Not used in RNC RJ45

XPUa

PARC

RUN

ALM

ACT

10/1

00/1

000B

AS

E-T

ACTLINK

0

1

2

3

XPU Board Introduction

An xpu board has four independent subsystems

Use motherboard-sub-board structure. There are two sub-boards, each of th

em has two CPU subsystems.

XPU board is used to process the signal order and algorithmic, support the f

unction of Iub/Iur/Iu interface signal order processing, wireless and transport s

ource management ,etc. The logical board is named SPU.

When The CSUa board processes the Multimedia Broadcast and Multicast

Service (MBMS) at the RLC layer and the MAC layer ， XPU board named C

SUa


DPUa

PARC

RUN

ALM

ACT

DPU Board Introduction

DPU board is data processing unit ， supports wireless frame p

rotocol processing function.

There are 22 DSPs on the board, 6 of the them are on the mot

herboard and the last of them are located on the two sub-board

s and there are 8 DSPs on each board.


Structure of the RNC Clock Synchronization Subsystem

RINT

RINT

SCUa

RINT

RINT

SCUa

SCUa

GCUa/GCGa Clock module

RSS

8kHz

To NodeB

To NodeBTo NodeB

RBS RBS

19.44MHz, 32.768MHz, 8KHz

19.44MHz, 32.768MHz, 8KHz

19.44MHz, 32.768MHz, 8KHz

8kHz

Clock cableHigh-speed backplane channel

CN BITS GPS


Clock cable connection between the GCUa/GCGa boards and the SCUa boards


Position of the GCUa Board in BSC6810

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

O M U a

20 21

RINT

RINT

RINT

RINT

24 25 26 27

O M U a

22 23

CSU a

SPUa

SPUa

CSUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

GCUa

GCUa

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board

Backplan

e

Front

board


Port

nameFunction

Port type

ATN-IN Port for the GPS antenna. SMA female

CLKOU

T0~9

Ports for outputting synchronization timing signals. The ten

ports are used to output 8 kHz timing signals and 1PPS

timing signals

RJ45

COM0 Reserved RJ45

COM1 Port for 422-level 8kHz timing signals RJ45

TESTO

UT

Port for testing timing signal output. This port is used to

output the internal timing signals of the board

SMB male

TESTINPort for testing timing signal input. This port is used to

input 2 MHz signals.

SMB male

CLKIN0Port for inputting BITS timing signals and line timing

signals.

SMB male

CLKIN1Port for inputting BITS timing signals and line timing

signals.

SMB male

GCUa Board


Transport Subsystem Board Introduction

RINT Interface

AEUa Providing 32 channels ATM over E1/T1/J1

interface

Iub/IuCs/Iur

AOUa Providing two optical ports for ATM over channli

zed STM-1/OC-3

Iub/IuCs/Iur

UOIa Providing four unchannelized STM-1/OC-3c opti

cal ports

Iub/IuCs/Iur, IuP

s

PEUa Providing 32 channels of IP over PPP/MLPPP

over E1/T1

Iub/IuCs/Iur

FG2a Providing eight FE ports or two GE electrical

ports

Iub/IuCs/Iur, IuP

s

GOUa Providing two GE optical ports Iub/IuCs/Iur, IuP

s


Position of the Interface Board in WRSS

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

O M U a

20 21

RINT

RINT

RINT

RINT

24 25 26 27

O M U a

22 23

CSU a

SPUa

SPUa

CSUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

GCUa

GCUa

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board

Backplan

e

Front

board


Position of the RINT Board in WRBS

Backplan

e

Front

board

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

RINT

RINT

RINT

RINT

24 25 26 27

SPUa

SPUa

SPUa

SPUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

DPUb

DPUb

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board RINT

20

RINT

21

RINT

22

RINT

23


AEUa Board Introduction

The AEUa board is an interface board and supports ATM over E1/

T1/J1.

the AEUa board functions:

Providing 32 channels of ATM over E1/T1

Providing 32 IMA groups or 32 UNIs. One IMA group contains at most 32 IMA links.

Supporting Iu-CS interface, Iur interface, and Iub interface

Providing the fractional ATM and the fractional IMA functions

Supporting timeslot cross-connection

Providing AAL2 switching function

Providing intra-board ATM switching function

Extracting line clock and outputting the timing signals to the GCUa/GCGa board

Outputting timing signals to the NodeB


AOUa Board Introduction

The AOUa board is an optical interface board and supports ATM over channelized

STM-1/OC-3c.

the AOUa board functions:

Providing two optical ports for ATM over channlized STM-1/OC-3


Supporting ATM over E1/T1 over SDH

Providing 126 E1s or 168 T1s

Providing the IMA and the UNI functions

Providing 84 IMA groups each of which contains 32 E1s/T1s

Providing AAL2 switching function

Providing intra-board ATM switching function

Extracting line clock and outputting the timing signals to the GCUa/GCGa board



FG2a Board Introduction

The FG2a board is an interface board and realizes the IP over Ethernet.

the FG2a board functions:

Providing eight FE ports or two GE electrical ports

Providing IP over FE

Providing IP over GE

Supporting Iu-CS interface, Iu-PS interface, Iu-BC interface, Iur interface,

and Iub interface


GOUa Board Introduction

The GOUa board is an optical interface board and realizes the IP

over Ethernet.

the GOUa board functions:

Providing two GE optical ports

Providing IP over GE

Supporting Iu-CS interface, Iu-PS interface, Iu-BC interface, Iur interface, an

d Iub interface


PEUa Board Introduction

The PEUa board is an interface board and supports IP over E1/T1/J1.

the PEUa board functions:

Providing 32 channels of IP over PPP/MLPPP over E1/T1

Providing 128 PPP links or 64 MLPPP groups, each MLPPP group co

ntaining 8 MLPPP links

Providing the fractional IP function

Supporting timeslot cross-connection

Extracting line clock and outputting the timing signals to the GCUa/GC

Ga board




UOIa Board Introduction

The UOIa board is an optical interface board and supports

ATM/Packet over unchannelized STM-1/OC-3c.

the UOIa board functions:

Providing four unchannelized STM-1/OC-3c optical ports

Supporting ATM over SDH

Extracting line clock and outputting the timing signals to the GCUa/G

CGa board


Supporting Iu-CS interface, Iu-PS interface, Iu-BC interface, Iur interf

ace, and Iub interface


SCUa

SCUa

HUB

OMUa

OMUa

SCUa

SCUa

Alarm box LMT

External network

RSS

To M2000

internal network

RBS

internet cable

serial cable

Components of the RNC OM Subsystem


Position of the OMUa Board on WRSS

RINT

RINT

RINT

RINT

RINT

RINT

14 15 16 17 18 19

O M U a

20 21

RINT

RINT

RINT

RINT

24 25 26 27

O M U a

22 23

CSU a

SPUa

SPUa

CSUa

SPUa

SPUa

00 01 02 03 04 05

DPUb

DPUb

GCUa

GCUa

10 11 12 13

SCUa

SCUa

DPUb

DPUb

06 07 08 09

Backplane

Rear board

Backplan

e

Front

board


OMUa Borad

(1) Captive screw

(2) Shielding finger (3) Ejector lever (4) LED (RUN)

(5) LED (ALM) (6) LED (ACT) (7) Button (RESET) (8) Button (SHUTDOWN)

(9) USB port (10) Ethernet port (ETH0) (11) Ethernet port (ETH1)

(12) Ethernet port (ETH2)

(13) COM port (14) VGA port (15) LED (HD) (16) LED (OFFLINE)

(17) Hard disk (18) Screw for fixing the hard disk


OMUa Borad

Support two Intel LV processor 、 2G memory

Support three ETH port in front plane （ 10/100/1000M Base-T self-adaptation ），OMU use this network port to connect with the internet directly (not pass through th

e Lanswitch within RNC). It’s more simple compared with the IBM server.

Support two paths backboard SERDES to the GE port and the host and standby FE

path of the switch board, host and standby OMU 、 OMU and SCU are connected by

this port.

OMU supports two harddisk interfaces by using the panel network port , connects wit

h two harddisk outside, and be mirror with each other to Raid 1.

On the panel of the OMUa board, there are four USB(USB2.0) ports and one BMC c

om port （ can used to system com port ） The OMUa boards can be installed only in slots 20 and 21, or slots 22 and 23 in the

RSS subrack. one OMUa board occupies two slots







BSC6810 Cables Distribution Figure


Main Cables

Trunk Cables ： 75Ω coaxial cable and Y-shaped 75-ohm coaxial cable

120Ω twisted pair cable and Y-shaped 120Ω twisted pair cable

Network Cables ： Straight through net work cable:used to connect the OMUa board to other d

evices

Crossover network cable: :used to connect the SCU board;

Optical Fibers ： LC/PC-SC/PC single-mode optical cable

LC/PC-FC/PC single-mode optical cable

Please choose right optical fibers based on actual network situation


Y-Shaped E1/T1 cable

(1) DB44 connector (2) Main label (Identifying the code, version, and manufacturer information of the cable)

(3) Label (Identifying a coaxial cable)

(4) Metal case of the DB44 connector

E1/T1 cable is used to connect E1/T1/J1 port

The Y-shaped 75-ohm coaxial cable/ 120-ohm coaxial cable used in the RNC

has two DB44 connectors at one end and has a structure of 2 x 8 cores. That is,

the 75-ohm coaxial cable is composed of two cables, each of which contains eight

micro coaxial cables. The 16 micro coaxial cables form eight E1 RX/TX links.


Y-shaped RNC Clock Signal Cable

(1) Label (Identifying a pair of twisted pair cables) (2) RJ45 connector

The RJ45 connector at one end of the Y-shaped RNC clock signal

cable is connected to port CLKIN on the SCUa board. The two RJ45

connectors at the other end of the signal cable are connected to ports

CLKOUT on the active and standby GCUa/GCGa boards which are lo

cated in the RSS subrack.

(1)(2)

(1)

(1)


3

Optical Cables

(1) LC/PC Connector (2)SC/PC Connector (3) FC/PC Connector

LC/PC-SC/PC single-mode optical cable and LC/PC-FC/PC single-

mode optical cable

It is used to connect the other NEs


Network Cables straight through cable

X1 end Wire color X2 end wire color

X1-1White and

orangeX2-1

White and orange

X1-2 orange X2-2 orange

X1-3 White and green X2-3 White and green

X1-4 Blue X2-4 Blue

X1-5 White and blue X2-5 White and blue

X1-6 Green X2-6 Green

X1-7 White and brown X2-7 White and brown

X1-8 brown X2-8 brownThe RNC straight-through ca

ble can be used to connect the

OMUa board to other devices

Crossover network cable ， c

an used to connect the SCU bo

ard

crossover cable X1 end Wire color X2 end Wire color

X1-1 White and orange X2-1 White and green

X1-2 Orange X2-2 Green

X1-3 White and green X2-3 White and orange

X1-4 Blue X2-4 Blue

X1-5 White and blue X2-5 White and blue

X1-6 Green X2-6 orange

X1-7 White and brown X2-7 White and brown

X1-8 Brown X2-8 Brown


Monitoring Signal Cable of RNC Power Distribution Box

The monitoring signal cable of the RNC power distribution box has a

DB9 connector at one end, and has a DB15 connector at the other end

X1: DB9 connector X2: DB15 connector SHELL: Metal case


RNC Alarm Box Signal Cable

The RNC alarm box signal cable is used to transmit alarm information to

the alarm box to display audible and visible warning.

X1: RJ45 connector X2: DB9 connector





Chapter 4 BSC6810 System hardwareChapter 4 BSC6810 System hardware

ConfigurationConfiguration


BSC6810 System Signal Flows

BSC6810 system signal flows including:

Control plane message flows

− Uu interface message flow

− Iub/Iur/Iu interfaces message flows

User plane data flows

− CS data flow

− PS data flow

− Data Flow from Iu-BC to Iub

− Data Flow of the MBMS Service


Control Message Flow on the Uu Interface

Intra-RNC Control Message Flow on the Uu Interface

R INT

NODEBUE

NODEBUE SPUb

SPUa

DPUb

DPUb

RINT

RSS

SPM SPM

RNC


Control Message Flow on the Uu Interface

Inter-RNC Control Message Flow on the Uu Interface

R INT

SPUb

SPUa

DPUb

DPUb

RINT

SPM SPM

DRNC

R INT

SRNC

NODEBUE


Control Message Flow on the Iub Interface

NODEBUE

NODEBUE R INT

SPUb

DPUb

SPUb

DPUb

RINT

RSS

SPM SPM

RNC


Control Message Flow on the Iu/Iur Interfaces

R INT

SPUb

DPUb

SPUb

DPUb

RINT

RSS

SPM SPM

RNC MSC/SGSN/other RNC


Data Flow Between Iub and Iu-CS/Iu-PS

Intra-RNC Data Flow Between Iub and Iu-CS/Iu-PS

NODEBUE

MSC/SGSN

R INT

SPUb

DPUb

SPUb

DPUb

RINT

RSS

SPM SPM

RNC

R INT

NODEB UE


Data Flow Between Iub and Iu-CS/Iu-PS

Inter-RNC Data Flow Between Iub and Iu-CS/Iu-PS

R INT

SPUb

SPUb

DPUb

DPUb

RINT

SPM SPM

DRNC

R INT

SRNC

NODEBUE

RINT

MSC/SGSN


Data Flow from Iu-BC to Iub

NODEBUE

R INT

SPUb

DPUb

SPUb

DPUb

RINT

RSS

SPM SPM

RNC

R INT

NODEB UE

CBC


Data Flow of the MBMS Service

NODEBUE

R INT

DPUb

SPUb

RINT

RSS

SPM

RNC

CSUa

SGSN





Chapter 4 BSC6810 System hardwareChapter 4 BSC6810 System hardware

ConfigurationConfiguration


RNC Hardware Configuration Types

Minimum Configuration

Support 6,000 Erlang voice traffic

Support 384 Mbit/s (UL + DL) PS data capacity

Support 200NodeBs and 600 cells

RSR

RSS

Empty

Empty


RNC Hardware Configuration Types

Maximum configuration

Support 51,000 Erlang voice traffic

Support 3,264 Mbit/s (UL + DL) PS data c

apacity

1,700 NodeBs and 5,100 cells

RBS RBS

RBS RBS

RBSRSS

RSR RBR


Other configurations

Number of subracks

Number of cabinets

Voice traffic（ Erlang ）

PS （ UL+DL ）data capacity（ Mbit/s ）

Number of NodeBs

Number of cells

1RSS+1RBS 1RSR 15,000 960 500 1,500

1RSS+2RBS 1RSR 24,000 1,536 800 2,400

1RSS+3RBS 1RSR+1RBR 33,000 2,112 1,100 3,300

1RSS+4RBS 1RSR+1RBR 42,000 2,688 1,400 4,200

Other configurations of the RNC

www.huawei.com

Thank You

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BSC6810 Hardware System Structure