W(Level1)-Huawei WCDMA RNC Introduction-20050526-A-1[1].0.ppt

Wireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development Section

ISSUEISSUE

Huawei WCDMA RNC IntroductionHuawei WCDMA RNC Introduction

1.01.0

Confidential Information of Huawei. No Spreading without Permission.

Security Level: Internal

IntroductionIntroduction

RNC (Radio Network Controller) is an important part of

WCDMA network. It constitutes the mobile access netwo

rk together with NodeB, and performs the functions of inf

ormation broadcasting, handover and radio resource ma

nagement.



Huawei UTRAN SolutionHuawei UTRAN Solution



CONTENTCONTENTCONTENTCONTENT

System ArchitectureSystem Architecture

System FunctionsSystem Functions

Product CharacteristicsProduct Characteristics



Hardware ArchitectureHardware ArchitectureHardware ArchitectureHardware Architecture

The BSC6800 cabinet is Huawei standard N68-22

cabinet. Its design conforms to IEC297 and IEEE standards

BSC6800 cabinet appearance



Hardware ArchitectureHardware ArchitectureHardware ArchitectureHardware Architecture

Cabinet Configuration

WRSR WRBR

Active BAM server

Power distribution box

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satellite signal receiver

Three-in-one LCD console

Active LAN Switch

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Standby BAM server

Standby LAN Switch

WRSR WRBR

Active BAM server


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satellite signal receiver

Three-in-one LCD console

Active LAN Switch

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Standby BAM server

Standby LAN Switch



Cen

tral switch

ing

sub

systemC

entral sw

itchin

g su

bsystem

Service processing subsystem


O&M subsystemO&M subsystem

Clock signal





Iub/Iur/Iu

Iub/Iur/Iu

Iub/Iur/Iu

Iub/Iur/Iu

M2000

System Logical StructureSystem Logical StructureSystem Logical StructureSystem Logical Structure



Central Switching SubsystemCentral Switching Subsystem

Internal/external switching

Processing of user plane of transport network layer of Iu-

PS interface.

Provide high-speed STM-1/STM-4 optical ports for Iu-CS,

Iu-PS, Iur and Iub.

Provide interfaces for O&M and system clock signal

One BSC6800 is configured with only one central

switching subsystem.



Service Processing SubsystemService Processing Subsystem

Perform RNC-related protocol functions including

macro diversity combination, frame processing, Uu

interface layer 2 processing as well as the radio

resource management.

Provide the low-speed E1/T1 port for Iu-CS, Iu-PS, Iur,

Iub



O&M SubsystemO&M Subsystem

BAM

LMT

BAM

LMT



O&M FunctionsO&M Functions

Configuration Management

Security Management

BAM

MaintenanceManagement

PerformanceManagement

FaultManagement



Configuration PrinciplesConfiguration Principles

Minimum configuration

•Single rack; supports 3,200 equivalent voice channels•One WRBR for system configuration




Rack0

WRSS

WRBS

BAM




Maximum configuration

•Support 51,200 equivalent voice channels

•One WRBR (one WRSS and one WRBS), and five WRBRs (15 WRBSs)




Rack0 Rack1 Rack2 Rack3 Rack4 Rack5

WRBS WRBS WRBS WRBS WRBS WRBS

WRBS WRBS WRBS WRBS WRBS WRBS

BAM WRBS WRBS WRBS WRBS WRBS



Product CharacteristicsProduct CharacteristicsProduct CharacteristicsProduct Characteristics

Large Capacity and High Integration

Open Interfaces

Flexible Configuration and Networking

Advanced RRM Algorithms

Smooth Evolution and Upgrading

Easy and Practical O&M Functions

High Reliable Design



Large CapacityLarge CapacityLarge CapacityLarge Capacity

RNC

51200 channels1,000,000 subs 40,000Erl

2400K BHCA1280 NodeBs

2560 Cells



High IntegrationHigh IntegrationHigh IntegrationHigh Integration

Single-cabinet solution, support 160 cells

Module Design, smooth expansion

Support 1 million subscriber with only 6 cabinets

…



Flexible ConfigurationFlexible ConfigurationFlexible ConfigurationFlexible Configuration Modular design

The system can be expanded smoothly by means of adding module

s

Multiple system clock source configurations

The clock source can be obtained from a Building Integrated Timing

Supply System (BITS), Iu interface, satellite synchronization clock si

gnal received by the satellite receiver, or local oscillator.

Multiple networking modes

The BSC6800 supports star, chain and tree networking with the Nod

eBs

Service-oriented hardware configuration

The system can be configured according to different requirements o

n voice and data services in different phases of network construction.



Flexible NetworkingFlexible Networking Flexible NetworkingFlexible Networking

Multiple types of physical ports are provided for Iub, Iur and Iu int

erfaces :

ATM over E1/T1. Each interface board provides 24 or 32 E1/T1 port

s.

ATM over E1 over STM-1. Each STM-1 provides 63 E1 ports.

ATM over STM-1/STM-4. The BSC6800 supports optical port backu

p.

The BSC6800 also supports IMA, Fractional ATM and CES functi

ons.



IMA IMA IMA IMA

E1/T1: IMA, Save BandwidthE1/T1: IMA, Save Bandwidth

PHY

PHY

PHY

IMA×éPHY

PHY

PHY

IMA×é

µ¥ATMÐÅÔªÁ÷

´ «Êä·½Ï ò£º°´ Ñ »·µÄ Î Ðò°ÑÐÅÔª· ÖÅäµ½÷Ì õµÍ ËÙµÄÎ ï Àí Á Â·½ÓÊÕ·½Ï ò£º°Ñ ÷Ì õµÍ ËÙÎ ï Àí Á Â· ¹ ýÀ µÄÐÅÔªÖØÐÂ»ã³ Éµ¥¸ öÐÅÔªÁ÷¡ £

µÍ ËÙÎ ï Àí Á Â·



£¨ À ×ÔATM² ã£©Ô ATMÐÅÔªÁ÷£¨ È¥ATM² ã£©

A single ATM cell flow (from the ATM layer)

IMA groupLow-speed physical link

Low-speed physical link

Low-speed physical link

IMA group

The original ATM cell flow (to the ATM layer)

At the Tx end: Cells are allocated to each low-speed physical link in a circular order

At the Rx end: The cells transmitted on each low-speed physical link are reassembled to a single cell group



2G/3G Transmission Sharing: Fractional ATM2G/3G Transmission Sharing: Fractional ATM



2G/3G Transmission Sharing: CES2G/3G Transmission Sharing: CES

CES: Circuit Emulation Service

ATM networkequipment

ATM cells

BSC6800

2G BSC

Assemble the data insome E1 time slots intoATM cell flow/Allocate

the ATM cell flow tosome E1 time slots

(NodeB interface board)

ATM networkequipment

ATM cells

NodeB

2G BTS

E1 transmission (sometime slots available)

ATM transmission

E1 transmission (sometime slots available)

Assemble the data insome E1 time slotsinto ATM cell flow/

Allocate the ATM cellflow to some E1 timeslots(WOSE/WOME)



Advanced RRM AlgorithmsAdvanced RRM AlgorithmsAdvanced RRM AlgorithmsAdvanced RRM Algorithms

Huawei-patented RRM algorithms:Huawei-patented RRM algorithms:

Power controlPower control

HandoverHandover

Resource allocationResource allocation

Load controlLoad control

InterferenceInterference

Quality

CoverageCoverageCapacity



Smooth Evolution and UpgradingSmooth Evolution and UpgradingSmooth Evolution and UpgradingSmooth Evolution and Upgrading

The present system is based on the R99 protocol and it

supports the smooth evolution to R4 and R5.

Support of software online patch

Smooth online capacity expansion

1, 000, 000

800, 000

600, 000

450, 000

250, 000

60, 000



Easy and Practical O&M FunctionsEasy and Practical O&M Functions Easy and Practical O&M FunctionsEasy and Practical O&M Functions

M2000Server

RNC

NodeB

NodeB

Internet/DDN

LMT

IP over Ethernet

IP over Ethernet

IPoA

IPoA

M2000 Console

PSTN

Modem

Modem

Internet/DDN

M2000 ConsoleLMT

LMTLMT

LMT



HUAWEI M2000 Centralized O&M SystemHUAWEI M2000 Centralized O&M SystemHUAWEI M2000 Centralized O&M SystemHUAWEI M2000 Centralized O&M System

Upper North

OMC, Local maintenance, Remote maintenance

Operation Interface: WEB, GUI, MML, etc.

Perfect interface tracing function

E1、 DDN

OMC

M2000 Server

Dial Server

PSTN

Network Management

Remote Workstation

Dial Server

UMSC

Local Terminal

SGSN

RNC

Local Terminal

Dial Server

NODEB



High High Reliability Design Design High High Reliability Design Design

Active/standby mode, load-sharing mode, fault detection/isolation technology are adopted to improve hardware reliability.

Regular testing, task monitoring, storage protection, resource verification and so on are adopted to improve software reliability



System FunctionsSystem FunctionsSystem FunctionsSystem Functions

Service Processing FunctionsService Processing Functions

Radio resource management functions



Service Processing FunctionsService Processing FunctionsService Processing FunctionsService Processing Functions

System Information Broadcasting

Paging

Call Setup and Release

QoS Classes

The BSC6800 supports four QoS classes: conversational, str

eaming, interactive and background.




Bearer Services

Circuit-switched bearer services include:

AMR speech service(conversational class)

CS transparent data service (conversational class)

CS non-transparent data service (streaming class

Packet-switched bearer services include:

PS VoIP speech service(conversational class)

PS streaming service

PS interactive service

PS background service




Bearer Services

Bearer services combination include:

Combination of two CS services (except for two AMR spe

ech services)

Combination of two PS services

1 CS service + 1 PS service

1 CS service+ 2 PS services

2 CS services+ 1 PS service




NodeB Logical Operation and Maintenance

Encryption and Integrity Protection

Radio Link Monitoring

PDCP Function

TFO/TrFO Functions

CBS

Cell Broadcast Service (CBS) is a point-to-multipoint broadca

st service.




License Function

Location Service

The BSC6800 supports not only the three basic locating

technologies, Cell-ID, OTDOA-IPDL and A-GPS, but also a

hybrid UE locating technology which comprehensively utilize all

the three basic locating technologies



System FunctionsSystem FunctionsSystem FunctionsSystem Functions

Service Processing FunctionsService Processing Functions

Radio resource management functionsRadio resource management functions



Radio resource management functionsRadio resource management functionsRadio resource management functionsRadio resource management functions

Logical and transport channel management

Mobility Management (MM)

Dynamic channel configuration

Power control

Cell load control

AMR speech codec rates control

TFO/TrFO functions

Location services.

W(Level1)-Huawei WCDMA RNC Introduction-20050526-A-1[1].0.ppt

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