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PS CORE – IPBACKBONE

Trình bày: DƯƠNG VIỆT MỸ – VMS



CONTENTS

• Session 1: 3G Network overview

• Session 2: UMTS Core Network Fundamental

• Session 3: IP Backbone

• Session 4: Q&A



3G Network overview



3G Network overview4

Why 3G?

• Higher bandwidth enables a range of new applications!!• For the consumer

– Video streaming, TV broadcast – Video calls, video clips – news, music, sports

– Enhanced gaming, chat, location services… • For business

– High speed teleworking / VPN access – Sales force automation – Video conferencing – Real-time financial information



Different Service, DifferentTechnology

Different Service, Different Technology

AMPS

TACS

NMT

Others

1G 1980s Analog

GSM

CDMA

IS-95

TDMAIS-136

PDC

2G 1990sDigital

Technologies

drive

3GIMT-2000

UMTSWCDMA

cdma2000

Demands

drive

TD-SCDMA

3GPP

3GPP2

3GPP

IMT-2000: International Mobile Telecommunications for the year 2000

3GPP (2): Third Generation Project Partnership (2)

UMTS: Universal Mobile Telecommunication System

WCDMA: Wideband CDMA.

TD-SCDMA :Time Division Synchronous Code Division Multiple Access

http://vi.wikipedia.org/w/index.php?title=TD-SCDMA&action=edit&redlink=1






UMTS and CDMA 2000 market share

cdmaOne

GSM

TDMA

2G

PDC

CDMA2000

1x

First Step into 3G

GPRS 90%

10%

EDGE

WCDMA

CDMA2000

1x EV/DV

3G phase 1 Evolved 3G

3GPP Core

Network

CDMA2000

1x EV/DO

HSDPA

Expected market share

EDGE

Evolution



3G services in Asia

7

• CDMA (1xEV-DO)

– Korea: SKT, KTF

– Japan: AU (KDDI)

• WCDMA / UMTS

– Japan: NTT DoCoMo, Vodafone KK

– Australia: 3 Hutchinson

– Hong Kong: 3 Hutchinson

• TD-SCDMA

– China





3G Application Service and QoS in UMTSPage9

3G Application Service

Time Delay

BER

background

conversational

streaming

interactive





WCDMA Protocol Version Evolution(2)

14.0Mbps 42.0Mbps384 kpbs



WCDMA data rate



UMTS Network Architecture

13

SD

Mobile Station

MSC/

VLR

Base StationSubsystem

GMSC

Network Subsystem

AUCEIR HLR

Other Networks

Note: Interfaces have been omitted for clarity purposes.

GGSNSGSN

BTSBSC

Node

BRNC

RNS

UTRAN

SIMME

USIMME

+

PSTN

PLMN

Internet



Mobile subscribers forecast

Source: ABI Research



Technology moving towards 4G



UMTS CN Fundamental



UMTS CN Fundamental

• CS Core Network

• PS Core Network





UMTS R4 Core Network Structure

GSM /GPRS BSS

BTS

BSC

NodeB

RNC

PCU

UTRAN

SCPSMS

SCE

PSTN/PLMN

Internet,

Intranet

HLR/AuC

SGSN

CGBG

GGSN

GPRS

backbone

MGW MGW

VMSC Server

GMSC Server

IP/ATM BackboneCSDomain

PSDomain

Iu-CS

Iu-PS

SS7

Other PLMN



Abbreviation-CS Core

• MSC/VLR: Mobile Switch Center/Visitor Location Register

• SMS-GMSC: Gateway MSC For Short Message Service

• SMS: Short Message Service Interworking MSC

• SCP: Service Control Point• GMLC: Gateway Mobile Location Center

• HLR: Home Location Register

• EIR: Equipment Identity Register



Page21

R4 Soft Switch CS CN Structure

UTRAN

SS7

PSTN/ISDN

BSS

SIGTRAN

SCP SMS

SCE

HLR

APP Server

H.248

BICCVMSC Server

IP(ATM) BackboneMGW MGW

AMR/RTP(AAL2)

GMSC Server

H.248

RANAP

GSM/R99 PLMN

IP Network

TDM

AAL2 TDM

TDM

IP

BSSAP

MAP/CAP

Page22



Page22

Features of Soft Switch CN

• Separated structure of Signalling and Bearer

• Multi voice transport modes: TDM, ATM, IP

• Multi signalling transport modes:• TDM based SS7;

• IP based SIGTRAN

• Adopts BICC, H.248 protocol.

Page23



Page23

Function of MSC Server

• The signalling functions of MSC and VLR/SSP functions

• The billing function

• The control of MGWs via H.248 protocol• The inter-working function of other MSC Server via BICC protocol

MGW

MSC Server

H.248

MSC Server

H.248

BICC

MGW

Page24



Page24

Function of MGW

The switching function of voice service.

The transform of various media format(G.711/G.729/AMR etc. )

The transform of various transport format( TDM/ATM/IP)

Providing the media related resource

Cooperate with MSC server via H.248 protocol

MGW

MSC Server

H.248

MSC Server

H.248

BICC

MGW

Page25



Page25

Function of Signalling Gateway

• Providing the transform of SS7 protocol stack and SIGTRAN protocolstack (SIGTRAN M3UA /SCTP/IP <=> SS7 MTP3/2/1)

• SG can be a stand alone equipment or combined with MSCServer/MGW/STP

SG MSC ServerPSTN

TDM IP

IP

SCTP

M3UA

ISUP

MTP1

MTP2

MTP3

ISUP

Page26



Page26

MTP3/2/1

SG

PSTNSTP

M3UA/SCTP/IP

IP Backbone

MG MGW

H.248

BICCGMSC Server

MGW

H.248

RANAP

MSC Server

UTRANUTRAN

MGW

R4 Regional Network Structure

Page27



Page27

IP Backbone

UTRAN

MGW

BICC

TMSC Server

H.248

MSC Server

UTRAN

MGW

H.248 RANAP

MSC Server

RANAP

Regionalnetwork 1

TMSC Server

Regionalnetwork N

R4 Toll Network Structure



UMTS CN Fundamental

• CS Core Network

• PS Core Network

– Overview

– Working principle



UMTS CN Fundamental

• CS Core Network

• PS Core Network

– Overview




GPRS/UMTS PS Network



Abbreviation-PS Core

• GPRS: General Packet Radio Service

• BSS: Base Station Subsystem

• UTRAN: UMTS Terrestrial Radio AccessNetwork

• SGSN: Service GPRS Support Node

• GGSN: Gateway GPRS Support Node• CG: Charging Gateway

• BG: Bordering Gateway

• PDN: Packet Data Network



Functions of SGSN



Functions of GGSN



Functions of HLR/AuC



Functions of CG



Functions of DNS

i f



Functions of BG

UMTS CN F d l



UMTS CN Fundamental

• CS Core Network

• PS Core Network

– Overview


UMTS D t T i i St t



UMTS Data Transmission Structure

T i l A li ti



Typical Application

T i l A li ti



Typical Application

T i l A li ti



Typical Application

R i C t t H ISP



Roaming: Connect to Home ISP

Roaming Connected Visiting ISP



Roaming: Connected Visiting ISP

Main Procedures



Main Procedures

Mobility Management Procedures Session Management Procedures

Attach Procedure



Attach Procedure

Routeing Area Update



Routeing Area Update

SRNS relocation



SRNS relocation

Detach Procedure



Detach Procedure

PDP Context



PDP Context

Quality of Service



Quality of Service

Access Point Name



Access Point Name

Mobifone APN: m-wap.mnc01.mcc452.gprs

Usage of APN



Usage of APN

IP Address Allocation



IP Address Allocation



IP Backbone





GSM /GPRS BSS

BTS

BSC

NodeB

RNC

PCU

UTRAN

SCPSMS

SCE

PSTN/PLMN

Internet,

Intranet

HLR/AuC

SGSN

CGBG

GGSN

GPRS

backbone

MGW MGW

VMSC Server

GMSC Server

IP/ATM BackboneCSDomain

PSDomain

Iu-CS

Iu-PS

SS7

Other PLMN

IP BACKBONE STRUCTURE



IP BACKBONE STRUCTURE

IP BACKBONE FEATURES



IP BACKBONE FEATURES

• Kiến trúc phân lớp: IP MPLS/BGP.

• Chuyển tải nhiều loại dịch vụ: voice,data, signaling, billing tarrif , …

• Hỗ trợ nhiều loại giao tiếp: FE, GE,STM1, STM4,…

• Dễ dàng mở rộng.

• Triển khai QoS.

Giao thức chạy trên IPBB



Giao thức chạy trên IPBB

1.OSPF (v2)or ISIS.

2.BGP (MP-BGP)

3.HSRP, VRRP4.MPLS

5.MPLS VPN

OSPF- Open Shortest Path First



OSPF Open Shortest Path First

• Quảng bá ip network (link kết nối giữa các router + router id_loopback 0) trongbảng global routing table

• Cấu trúc multiple area

– area 0: giữa các P router

– area x: giữa P router và PE router

MP-BGP (MultiProtocol BGP)



MP BGP (MultiProtocol BGP)

• Trao đổi thông tin route

MPLS-VPN giữa các PE• SWHCM-1 và SWHNI-1N là RR

(Route Reflector) chưa thôngtin route trên toàn mạng

• Các PE khác trao đổi thông tinđịnh tuyến với 2 RR này

HSRP-Hot Standby Router Protocol



HSRP Hot Standby Router Protocol

- HSRP được sử dụng trên các kết nối từ 7609 đến các thiết bị CE của

từng dịch vụ

- HSRP cung cấp khả năng dự phòng

cao cho link kết nối và router PE

MPLS-MultiProtocol Label Switching



g

- IPBB sử dụng công nghệ

chuyển mạch nhãn đa giao

thức MPLS

- Traffic vào miền MPLS sẽ

được các router chuyển tiếp dựa vào nhãn (label)

- Tốc độ chuyển mạch nhãn

nhanh hơn chuyển mạch IP

- MPLS là nền tảng để triển

khai MPLS VPN



THẢO LUẬN



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