lg information & communications, ltd. lgic sc-allip-20000518-___ 2000 lgic proprietary &...

LG Information & Communications, Ltd.LGIC SC-AllIP-20000518-___

2000 LGIC Proprietary & confidential / All Right Reserved

3GPP2 All IP Ad HocLas Vegas, WA

May 18~19 , 2000

Source :

Contact :

LGICLG Information & Communications, Ltd.

Byung-Keun Lim, Ph.D.

Phone : +82-343-450-7199E-mail : [email protected]

The contributor grants a free, irrevocable license to 3GPP2 and its Organizational Partners to incorporate text or other copyrightable material contained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell in Organizational Partner's name any Organizational Partner's standards publication even though it may include portions of thecontribution; and at the Organizational Partner's sole discretion to permit others to reproduce in whole or in part such contributions or the resulting Organizational Partner's standards publication. Permission is granted to 3GPP2 participants to copy any portion of this contribution for the legitimate purpose of the 3GPP2. Copying this contribution for monetary gain or other non-3GPP2 purpose is prohibited.

All IP network phasing and Architecture

SC-AllIP-20000518-___



Introduction

In this contribution, We proposed a new 3 phased steps compare to the previous2 Phased Steps in order for more smoother migration to All IP network from LegacyNetwork.

For each phase, we give the characteristics of each phase and benefit . and, gives an detailed architecture for the 3G All IP Network system.

The Name,Functions, and Protocol stack of the network entities shown in the figure are the same as the last LGIC’s Contribution.

In order to support easy comprehension of the function, we included the name of the network entities which is shown in other proposals, when the network entity functions are similar or equal to.

The IP RAN and IP Core Network are divided in the architecture diagram only to show the classification without functional change of the network entities.



Migration Toward an All-IP Network

Migration of existing users and networks toward an all-IP network is a strong

requirement of many operators. The issues associated with such a migration

include: Protection of investment in existing infrastructure; Continued support of existing users and mobile terminals; Ability of operators to migrate portions of their network functionality at a

pace and in a manner that best meets their operational and economic goals; Ability of a user to carry forward the E.164 number assigned to a legacy

mobile terminal to an all-IP mobile terminal.



Phasing

Phase I : IP MSC step

- Remove of circuit switch, modify ANSI-41 for IP transport

Phase II : IP RAN step

- IP transport to BTS, modify 3G-IOS for IP transport

Phase III : IP-IOS and IP-MAP step

- Develop, Globally Unique IOS and MAP



Architecture

Phase I : removing MSC - IP MSC step.

- Removing MSC in the network- Develop MM, Radio Call Controller, Packet Routing Controller- Develop VoIP network entities such as Call Agent, Media Gateway, Signaling Gateway, Roaming Gateway, and Multimedia Resource Function- Interconnect the Network Entities by IP network

- Reuse 3G-IOS, - Modify ANSI-41 optimum to IP transport

Support - Node to Node VoIP, between SDU and Gateway.- handoff and Roaming for legacy 2G/3G - All ANSI-41 domain services, Multimedia Domain Service



BS/PCFMSC HLR

Aquater

3G-legacy network

PDSN

Internet/Intranet

TG(MGW)

SG(SGW)

PSTN/PLMN

ICG

HLR

3G All IPother Carrier’sNetwork

VS(MRF)

HA

AAA

IGSG/IGTG/(RSGW)

Multimedia Internet Domain

IPCore

BTS

BTS BSC/PCF

BTS

BTS

BSC/PCF

PDSN

(MM/RCCPRC)

TCA/(CSCF)

3G RAN

Locate MM/RCC/PRC in the RAN, since that entity only controls the radio access network operation and Mobility of the MS

Core Network

A1’

A3/A7

A2’

A2’Abis

Abis

Abis

Abis

Pi

Phase I. All IP Network Architecture



Phase I : Benefit

- Smooth migration- Reuse of the RAN with small modification in BSC/SDU- Support of full Services of the Legacy Mobile Station- The best efficient Radio Resource usage for Voice Communication- Use of the IETF’S VoIP protocol

- Fast deployment of the All IP Core Network

- Easy Migration of the other Access Network to the core network by a clear separation of the RAN



2G RAN

cdma2000 RAN

Other RAN

FixedAccess Network

All IPCore Network

3G/ AllIP carrier

PSTN/PLMN

Internet/Intranet/ISP

cdma2000 RAN

cdma2000 RAN

2G RAN

FixedAccess Network

FixedAccess Network

All IP network

ANSI-41Entities

Other RANService Entities

Phase I : Core-network configuration for Multiple Access Network



Phase II : IP RAN step.

- IP transport for Abis/A3/A7

- Modify 3G-IOS optimum to IP transport


Completion of the All IP networking in the scope of IP networking



BS/PCFMSC HLR

Aquater

3G-legacy network

PDSN

Internet/Intranet

TG(MGW)

SG(SGW)

PSTN/PLMN

ICG

HLR


VS(MRF)

HA

AAA

IGSG/IGTG/(RSGW)


IPCore

BTS

BTS BSC/PCF

BTS

BTS

BSC/PCF

PDSN

(MM/RCCPRC)

TCA/(CSCF)

All IP RAN

Upgrade 3G-IOS only , optimum to IP transport

Core Network

A1’

Abis/A3/A7

A2’

A2’

AbisAbis’

Pi

IPRAN

MGCP’

Phase II. All IP Network Architecture



Phase II : Benefit

- Smooth migration- Support of full Services of the Legacy Mobile Station- The best efficient Radio Resource usage for Voice Communication- Use of the IETF’S VoIP protocol

- Open I/F RAN entity- Share of the IP Core’s IP Network for IP RAN

- Easy Migration of the other Access Network to the core network by a clear separation of the RAN



Phase III : IP-IOS, IP-MAP step.

- Globally Unique IP based IOS - Globally Unique IP based MAP- Further decomposition of the Network Entities


Develop New IOS and MAP for the Cellular System regardless of CAI



BS/PCFMSC HLR

Aquater

3G-legacy network

PDSN

Internet/Intranet

TG(MGW)

SG(SGW)

PSTN/PLMN

ICG

HLR


VS(MRF)

HA

AAA

IGSG/IGTG/(RSGW)


IPCore

BTS

BTS BSC/PCF

BTS

BTS

BSC/PCF

PDSN

(MM/RCCPRC)

TCA/(CSCF)

All IP RAN

Globally Unique IP-IOS and IP-MAP

Core Network

Abis

Pi

IPRAN

MGCP’

Phase III. All IP Network Architecture



BS/PCFMSC HLR

Aquater

3G-legacy network

IP RAN

BTS

BTS

BSC/PCF

PDSN

Internet/Intranet

(MM/RCCPRC)

TG(MGW)

SG(SGW)

PSTN/PLMN

ICG

HLR3G All IPother Carrier’sNetwork

VS(MRF)

HA

AAA

IGSG/IGTG/(RSGW)

ALL IP RAN for the 3G-IOS

ADSLCable

FixedWirless

Target All IP Network Architecture LGIC’s View

TCA/(CSCF)

All IP NetworkANSI-41 Domain,


Radio Accessthrough ANSI-41domain, andApplication throughMultimedia IntrernetDomain

IPCore

MCA



CDMA - RAN

Access IP Transport

Core IP Transport Network

WirelessAccess

Gateway

PSTN

www.

EnterpriseIntranets

Voice -SignalingGateway

PacketGateway

Services - Resource Mgmt, Service Mgmt,Call Mgmt, Mobility Mgmt

voco

de

r

otherRAN

FixedWirelessAccess

BSC(RNC)

AccessGateway

BusinessAccess

ResidentialAccess

Framework Illustration - Entity Interconnection: SPCS’s view



Summary

- This phased approach guarantees smooth migration from legacy network to All IP Network

- This architecture guarantees the best efficient radio resource usage

- The All IP core can support all kind of Access network in the carrier networks

- This All IP Internet Multimedia Domain guarantees easy service development, since the Application Multimedia services are developed by a Client/Server relationship.

- All IP core network support SHO between the same RAN, and HHO between a different RAN



Acronym

RCC : Radio Connection ControlPRC : Packet Routing ControlTCA : Terrestrial Call Control AgentIGSG : Inter Generation Signaling GatewayIGTG : Inter Generation Trunk GatewayICG : Inter Carrier GatewaySG : Signaling GatewayTG : Trunk GatewayVS : Voice Server

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