S00-FEMTO-20071015-014 Huawei View on Femto Cells

7/28/2019 S00-FEMTO-20071015-014 Huawei View on Femto Cells

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www.huawei.com

Boston, MA, Oct 15-16, 2007

Huawei View on Femto

NoticeHuawei grants a free, irrevocable license to 3GPP2 and its Organizational Partners to incorporate text or other copyrightable materialcontained in the contribution and any modifications thereof in the creation of 3GPP2 publications; to copyright and sell inOrganizational Partner's name any Organizational Partner's standards publication even though it may include all or portions of thiscontribution; and at the Organizational Partner's sole discretion to permit others to reproduce in whole or in part such contributionor the resulting Organizational Partner's standards publication. Thecontributorsare also willing to grant licenses under suchcontributor copyrights to third parties on reasonable, non-discriminatory terms and conditions for purpose of practicing anOrganizational Partners standard which incorporates this contribution. This document has been prepared by Huawei to assist the development of specifications by 3GPP2. It is proposed to the Committeeas a basis for discussion and is not to be construed as a binding proposal on the contributors. The contributors specifically reservethe right to amend or modify the material contained herein and to any intellectual property of the contributors other than provided

in the copyright statement above.

3GPP2 FEMTO CELL WORKSHOP S00-FEMTO-20071015-014

Zhiming Li, [email protected]


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Contents

Overview of Femto

Femto Key Features


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Femto for Home Coverage

Cost effective to improve coverage and capacity at home

No special terminalneeded to provided CDMA services at home

IP transmission over existing DSL line

Plug-and-play for end user to install CDMA Femto at home

Installed at home

AT/MS

CDMA Femto

CDMA

Core Network

Internet

/Intranet

AGW

DSL access


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Femto Requirements

Performance requirements

The same voice quality as CS voice call

The similar call setup time compared to macro network

The same level of handoff success rate compared to macronetwork

Ongoing femto service should have minimum impact on

broadband connection such as xDSL

Management and maintenances requirements

Update of existing CN network should be minimum

Ease to manage/configure/upgrade femto


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Overview of femto

A interface based femto solution

Femto contains BTS+BSC+PCF functionality

AGW provides aggregation function and PDSN function

AGW connects to MSC/MSCe over A interface over IPIMS based femto solution

Femto contains BTS+BSC+PCF+PDSN functionality

Femto support SIP client for 1x terminal

AGW provides aggregation function

AGW connects to internet or 3GPP2 CN over IP


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Contents

Overview of Femto

Femto Key Feature


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A Interface Based Femto Architechture

IP Network

OMC

FHR

AGW

Femto

Firewall

IPSec GW

Femto Cell Domain Marco Domain

FHR: Femto Home Register

Home

Network

Broadband

network

Modem

Femto

MGW

MSCeHLR

AAA/AN-AAA

PLMN

PSTN


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A Interface Based Femto

BTS+BSC+PCF solution

Femto contains BTS+BSC+PCF function

AGW aggregates the signaling+data flow

Support 1x/DOtechnology

AGW acts as PDSN function also

AGW connects to MSC for supporting 1x voice call


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A Interface Based Architecture Entities

Femto

BTS+BSC+PCF function (including 1x and HRPD)

Tunnel management for signaling and data

Fat pipeline between the femto and the AGW

Per user per tunnel

Self-configuration

AGW A1/A2/A5 interface support over IP or E1/T1 for CS domain

Relay A1/A2/A5 interface message to the MSC

PDSN function

P-P interface support for fast handoff

Tunnel management for signaling and data

Femtos Authenticator

ESN/MEID/IMSI based access control for 1X

NAI based access control for DO

FHR

AAA Server provides Diameter/Radius interface for Femto


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Femto Authentication and Registration

Mutual authentication is preferred, the network must authenticate the device

AGW behaves as authenticator, FHR acts as authentication server

IKEv2 is used for femto authentication

refer to X.S0028-200

When authentication successes, the Femtos profile is downloaded from the AAA

IPSec tunnel is setup for conveying signaling of cdma system

Femto AGW FHR

IKEv2 Authentication Diameter/Radius

IPSec Tunnel


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1x Femto: Call flow overview

MSFemto

(1x)AGW MSC HLR FHR

Femto Authentication/Profile download

System Info

1x Registration 1x Registration

Tunnel Setup

Call Setup


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HRPD Femto: Call flow overview

ATFemto

(HRPD)AGW PDSN AAA FHR

Femto Authentication/Profile download

System Info

PPP Session Authentication

Tunnel Setup

Call Setup


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1x Femto: QoS

A1p/A2p interface between femto and AGWPer user per tunnel

User priority based schedule over IP transport

Femto

MS1

MS2

MS3

Voice

Voice

Web

AGW

IPSec Tunnel

MS1 Voice

MS2 Voice

MS3 Web


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HRPD Femto: QoS

Per A10 per tunnel, each AT may have multiple A10 connections like HRPD User and flow priority based schedule over IP transport

Femto

AT1

AT2

AT3

Voice

Voice

Web

AGW

IPSec Tunnel

AT1 Voice

AT2 CS

AT3 Web

Web

Streaming

AT1 Web

AT2 Streaming


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1x Femto: Mobility

Intra-MSC handoffBi-directional CS handoff

Inter-PDSN handoff

Dormant Bi-direction PS handoff, packet session will be dropped if MIP is not used

1x BSC1x BTS

1x MSCe

AGWFemto

1x

MS/AT

PDSN

MGW

P-P interface


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HRPD Femto: Mobility

Inter-PDSN handoffDormant Bi-direction PS handoff, packet session will be dropped if MIP is not used

HRPD AN

AGWFemto

HRPD

AT PDSN

P-P interface


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Femto Accounting

MSC generates CS accounting info including femto indicator

info to the billing system

AGW generates PS accounting info including femto indicator

info to the billing system


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IMS based Femto Architecture

IP Network

OMC

FHR

AGW

Femto

Firewall

IPSec GW

Femto Cell Domain Marco DomainHome

Network

Broadband

network

Modem

Femto

MGW

MSCeHLR

AAA

PLMN

PSTN

IMS


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IMS Based Femto

IMS based femto

Femto contains BTS+BSC+PCF+PDSN function

PPP terminates at the femto

Femto Aggregation function at AGW

Femto acts as SIP client on behalof on the MS for 1x femto

For HRPD femto, the HRPD terminal shall support SIP client

Support 1x/DO technology

AGW connects to Internet or 3GPP2 CN over IP

AGW acts as security gateway also


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O&M

Femto management

Frequency Assignment

Access Technology configuration

Legal user control

Black list control

Policy control


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Summary

Standard path

Phase 1: A interface Based Femto

Easy to deployment, Short time to market

Less modification to CN network

Performance stays at the same level as macro network

Phase 2: IMS based Femto

Fully support IMS service


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Thank You

www.huawei.com

S00-FEMTO-20071015-014 Huawei View on Femto Cells

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