BSC6810-HW-SLOTS

HUAWEI TECHNOLOGIES CO., LTD. All rights reserved

www.huawei.com

Internal

BSC6810 Hardware

System Structure

BSC6810V200R009

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

RNCs(Radio Network Controller)and

NodeBs compose the UTRAN (UMTS

Terrestrial Radio Access Network)

RNC performs the following main functions:

system information broadcasting, handover,

cell resource allocation, radio resource

management and so on,

Huawei RNC is named as BSC6810 and

BSC6800


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 Overview

Chapter 2 BSC6810 hardware structure

Chapter 3 BSC6810 Signal Flows

Chapter 4 BSC6810 System hardware Configuration


Position of RNC in WCDMA System

RNC

RNC

NodeB

NodeB

NodeB

CS

PS

CBC

UE UTRAN CN Uu Iu

Iu-CS

Iu-PS

Iu-BC

Iur

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

capacity;

6,000

15,000

24,000

33,000

42,000

51,000



2.1 BSC6810 cabinets and subracks

2.2 BSC6810 boards

2.3 BSC6810 cables


Item Specification

Outline dimensioning 2200mmH600mmW

800mmD

Height of the available

space 46U

Weight Empty cabinet 140kgFully-

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

distributio

n 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.




2.2 BSC6810 boards

2.3 BSC6810 cables


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

subsystem

transport

subsystem

service

processing

subsystem

service

processing

subsystem

service

processing

subsystem

BAM BAM

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

Switching

and

control

unit

Switching

and

control

unit

RSS

RBS

RBS

High-speed

backplane channel Network cable


Functions of GE Switching Subsystem

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

and 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

boards of the RNC


Position of the SCUa Board in WRSS

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14 15 16 17 18 19

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20 21

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24 25 26 27

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10 11 12 13

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b

06 07 08 09

Backplane

Rear board

Backplane

Front board


Position of the SCUa Board in WRBS

Backplane

Front board

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14 15 16 17 18 19

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24 25 26 27

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06 07 08 09

Backplane

Rear board

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T

20

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21

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22

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T

23


SCUa Board Introduction

Port Name Function Port

Type

10/100/1000BASE-T 011 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.

This 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

port 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

local subrack

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

subrack, and be the host and standby

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

connection of subracks for the RNC

SCUa

PARC

RUN

ALM

ACT

CO

M

TESTOUT

CLK

IN

ACTLINK

10/1

00/

100

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

processin

g unit

data

processin

g unit

DSP

DSP

DSP

DSP

SPM

SSN0

SSN1

SSN2

SSN3

signaling

processin

g unit

data

processin

g unit

DSP

DSP

DSP

DSP

SPM

SCUa SCUa RSS

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

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

processing unit (DPUb).

SPMService Process Module

An SPM works as a resource pool. The resources in an SPM are

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

SPUa 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

distributed 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

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20 21

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24 2

5

26 27

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06 0

7

08 09

Backplane

Rear board

Backplane

Front

board

SPM is composed by

SPUa and DPUb in

WRSS


Position of Service Processing Subsystem Board on WRBS

Backplane

Front board

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24 25 26 27

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06 07 08 09

Backplane

Rear board

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20

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21

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22

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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

them has two CPU subsystems.

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

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

source 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

CSUa


DPUa

PARC

RUN

ALM

ACT

DPU Board Introduction

DPU board is data processing unitsupports wireless frame

protocol processing function.

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

motherboard and the last of them are located on the two sub-

boards and there are 8 DSPs on each board.


Structure of the RNC Clock Synchronization Subsystem

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a

GCUa/GCGa

Clock module

RSS

8kHz

To NodeB

To NodeB To NodeB

RBS RBS

19.44MHz, 32.768MHz, 8KHz

19.44MHz,

32.768MHz, 8KHz

19.44MHz,

32.768MHz, 8KHz

8kHz

Clock cable High-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

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20 21

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24 25 26 27

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06 07 08 09

Backplane

Rear board

Backplane

Front board


Port

name Function

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

TESTIN Port for testing timing signal input. This port is used to

input 2 MHz signals.

SMB male

CLKIN0 Port for inputting BITS timing signals and line timing

signals.

SMB male

CLKIN1 Port 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 channlized

STM-1/OC-3

Iub/IuCs/Iur

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

ports

Iub/IuCs/Iur, IuPs

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, IuPs

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


Position of the Interface Board in WRSS

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06 07 08 09

Backplane

Rear board

Backplane

Front board


Position of the RINT Board in WRBS

Backplane

Front board

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06 07 08 09

Backplane

Rear board

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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, and

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

containing 8 MLPPP links

Providing the fractional IP function

Supporting timeslot cross-connection

Extracting line clock and outputting the timing signals to the

GCUa/GCGa 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/GCGa board


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

interface, and Iub interface


S

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a

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a

HUB

O

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U

a

O

M

U

a

S

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U

a

S

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U

a

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

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06 07 08 09

Backplane

Rear board

Backplane

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 processor2G memory

Support three ETH port in front plane10/100/1000M Base-T self-adaptation

OMU use this network port to connect with the internet directly (not pass through

the Lanswitch within RNC). Its 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 OMUOMU and SCU are connected by

this port.

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

with 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

com portcan 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




2.2 BSC6810 boards

2.3 BSC6810 cables


BSC6810 Cables Distribution Figure


Main Cables

Trunk Cables

75 coaxial cable and Y-shaped 75-ohm coaxial cable

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

Network Cables

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

devices

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

located 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

X1-1 White and

orange X2-1

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 brown The RNC straight-through

cable can be used to connect

the OMUa board to other

devices

Crossover network cable

can used to connect the SCU

board

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 hardware

Configuration


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

I

N

T

NODEB UE

NODEB UE

S

P

U

b

S

P

U

a

D

P

U

b

D

P

U

b

R

I

N

T

RSS

SPM SPM

RNC


Control Message Flow on the Uu Interface

Inter-RNC Control Message Flow on the Uu Interface

R

I

N

T

S

P

U

b

S

P

U

a

D

P

U

b

D

P

U

b

R

I

N

T

SPM SPM

DRNC

R

I

N

T

SRNC

NODEB UE


Control Message Flow on the Iub Interface

NODEB UE

NODEB UE

R

I

N

T

S

P

U

b

D

P

U

b

S

P

U

b

D

P

U

b

R

I

N

T

RSS

SPM SPM

RNC


Control Message Flow on the Iu/Iur Interfaces

R

I

N

T

S

P

U

b

D

P

U

b

S

P

U

b

D

P

U

b

R

I

N

T

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

NODEB UE

MSC/SGSN

R

I

N

T

S

P

U

b

D

P

U

b

S

P

U

b

D

P

U

b

R

I

N

T

RSS

SPM SPM

RNC

R

I

N

T

NODEB UE


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

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

R

I

N

T

S

P

U

b

S

P

U

b

D

P

U

b

D

P

U

b

R

I

N

T

SPM SPM

DRNC

R

I

N

T

SRNC

NODEB UE

R

I

N

T

MSC/SGSN


Data Flow from Iu-BC to Iub

NODEB UE

R

I

N

T

S

P

U

b

D

P

U

b

S

P

U

b

D

P

U

b

R

I

N

T

RSS

SPM SPM

RNC

R

I

N

T

NODEB UE

CBC


Data Flow of the MBMS Service

NODEB UE

R

I

N

T

D

P

U

b

S

P

U

b

R

I

N

T

RSS

SPM

RNC

CSUa

SGSN





Chapter 4 BSC6810 System hardware

Configuration


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

capacity

1,700 NodeBs and 5,100 cells

RBS RBS

RBS RBS

RBS RSS

RSR RBR


Other configurations

Number of

subracks

Number of

cabinets

Voice traffic

Erlang PSUL+DLdata 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

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