IMS IOT Experience

Nov. 2010, ETSI-IMS-IOT-Workshop

ZTE Corporation

Contents

Milestones of ZTE’s IMS

2006• IMS network for enterprise application

- IMS network

2007• End-to-end IMS solution

• IMS network with

ICT

2008• Large capacity

geographical redundancy

solution

• Enhanced PCC solution

2009• IMS solution with full-

service operation capabilities

• IMS based tele-presence system

• RCS1.0

• IMS HD video conferencing system

2010Released

• IMS based VoLTE• IMS based IPTV • RCS 2.0 basedzMILE

2002• Started IMS R&D

covering WCDMA、

CDMA2000 and fixed network • GMI 2006

2004• IMS Beta version

2005•Commercial IMS version

•TMF OSS/BSS

event

solution • GMI 2008

g y

• IMS Centralized Service

Contents

GMI - the Global MSF Interoperability event - is the industry wide global IMS interoperability event organized

Interface ZTE equipment Vendor equipment IOT vendor

Gm P-CSCF SBC Acme Packet

Gm P-CSCF SBC NexTone(Genband)

Mw P-CSCF I/S-CSCFs Siemens

Mw I/S-CSCFs P-CSCF Acme Packet

Mw CSCF P-CSCF Starent

Mw CSCF P-CSCF Siemens

Cx CSCF HSS Nortel

Mg CSCF MGCF/CS Nortel

M CSCF CSCF N t l

IOT 1: MSF (GMI 2006)

industry wide, global IMS interoperability event organized by MSF (Multi Service Forum).

Participate all 6 scenariosDemonstrate interoperability, compatibility, flexibility and stability

Highlights Value

Verify the migration from Softswitch to IMSValidate the commercialization and flexibility of IMS network elements

Mw CSCF CSCF Nortel

Mg CSCF MGCF/CS Lucent

Mw CSCF CSCF Lucent

Mw CSCF CSCF Ericsson

ISC CSCF AS Lucent

ISC CSCF AS Telcordia

Gm CSCF IMS SIP UEs Spirent, Empirix

Gm CSCF SIP phones Cisco, Polycom, Grand Stream

ISC CSCF OSA GW Alcatel, Huawei

ISC CSCF AS BEA

ISC CSCF ENUM Nominum

BICC MGCF/MSCS Softswitch/MGW Ericsson

Highlights

End-to-end IMS solutionExcellent interoperability and compatibility

Value

CRMProduct Management

Scenario 1 Scenario 2

IOT 2: China Unicom ( IMS+NGOSS, 2007)

A real and complete model of “IMS services lifecycle management”Convergent online & offline charging for IMSStandard interfaces between IMS core and OSS/BSS

AS

IMS CORE

Service Management

IOT 3: China Mobile (2007)Interface ZTE NE IOT Vendor IOT NE

Nc MGCF HW GMSC

Nc MGCF HW GMSC

Nc MGCF NSN GMSC

Nc MGCF NSN GMSC

Nc MGCF ZTE GMSC

Nc MGCF Ericsson GMSC

China Mobile’s IMS-based integrated information network is the only

indicator that is beyond the world‘s advanced level among 15 enterprise information capacities. This network

adopts the world-class advanced technology. And its application

richness extent is above the average level of global benchmarking

enterprises. S C

Nc MGCF NSN GMSC

Nc MGCF Motorola GMSC

Nb IM-MGW HW GMSC

Nb IM-MGW HW GMSC

Nb IM-MGW NSN GMSC

Nb IM-MGW NSN GMSC

Nb IM-MGW ZTE GMSC

Nb IM-MGW Ericsson GMSC

Nb IM-MGW NSN GMSC

Covering 31 branch and overseas offices

Rich converged services: MMTel, Converged Centrex, Converged HD Video Conferencing…

Highlights Value

Verify the interoperability between IMS-CN and PLMN/PSTN

Validate the commercialization and flexibility of IMS-CN

-- Benchmarking Study on China Mobile’s Enterprise Information

Capacity, Accenture

Highlights

Provide converged QoSsolution for both fixed and mobile accesses Pass 102 and 86 test cases in BT/Vodafone site and China Mobile site , respectivelySuccessful interworking with

IOT 4: MSF ( GMI 2008)

Project ValueTest on dynamic QoS control based on PCC and RACSProven access agnostic of IMS by the interoperability between IMS core and several access networks

over 10 vendors IMS core, access tiles and terminals

IOT 5: China Mobile (2009)Interface ZTE

equipment

Vendor equipment

IOT vendor

Mw CSCF 5450 ISC (CSCF) ALUMw CSCF CSCF EricssonMw CSCF CSC3300 (CSCF) HWMw CSCF CFX5000(CSCF) NSN

Gm IMS-CN

VGA600(IAD), VGM6000_0E1/VGM6000_4E1 (AGW),

VGM6500(PBX)

Mai Pu

Gm IMS-CN

MTA6028/MTA6308 /MTA6328 (IAD), iPBX-400/iPBX-

412(PBX)

INNOMEDIA

A countrywide IMS-based multimedia network.

Rich converged services: MMTel, Converged Centrex, Multimedia Conferencing…

IOT Gm, Mw, Mg, Mj, ISC, etc. interfaces

HighlightsInterface ZTE

equipmentVendor equipment IOT

vendor

DNS CSCF ENUM/DNS ALU

DNS CSCF ENUM/DNS Ericsson

DNS CSCF ENUM8000 (ENUM/DNS)

HW

DNS CSCF iNum(ENUM//DNS)

NSN

Interface

ZTE equipme

nt

Vendor equipment

IOT vendor

Mg CSCF MGCF EricssonMg CSCF MGCF HWMg CSCF MGCF NSNMg MGCF CSCF ALUMg MGCF

Gm IMS-CNVENUS

2808/VENUS 2908(IAD)

Tai Lian

Gm IMS-CN SIP phone, SBC ALUGm IMS-CN SIP phone, SBC Ericsson

Gm IMS-CN SIP phone, SE 2300(SBC) HW

Gm IMS-CNSIP phone, SD

4250(SBC, Acme Packet) NSN

interfaces.

Value

Verify the interoperability between two different vender’s IMS-CNs, between AS and IMS-CN, between UE and IMS-CN.

Validate the commercialization and flexibility of IMS-CN.

ISC CSCF AS ALU

ISC CSCF AS Ericsson

ISC CSCF ATS9900(AS) HW

ISC CSCF AS NSN

ISC CSCF AS

EB Information Technology

ISC CSCF AS EBUPT

ISC AS CFX5000(CSCF) NSN

Mg MGCF CSCF EricssonMg MGCF CSCF HWMg MGCF CSCF NSNMj MGCF BGCF ALUMj MGCF CSCF EricssonMj MGCF BGCF HWMj MGCF BGCF NSNMj BGCF MGCF ALUMj BGCF MGCF EricssonMj BGCF MGCF HWMj BGCF MGCF NSN

IOT 6: China Telecom (2009)Interface ZTE

equipmentVendor equipment IOT

vendor

Gm IMS-CN

soft client, RG200O(Residential Gateway), EONU16160(ONU), 7330 ISAM FTTN(ONU), JB00-

A1(AG) ASB/ALU

Gm IMS-CN AN5006-04/AN5006-07/AN5006-16 FiberHome

Gm IMS-CN

MCC(soft client), MC851(SIP phone), HG866e (Home

Gateway), MA5616/MA5620E(MSAG), UA5000(AG), SE 2300(SBC) HW

Gm IMS CN Eyebeam(soft client)Xten

Interface

ZTE equipme

nt

Vendor equipment IOT vendor

ISCAS CSCF ALU

Fujian: fixed network transformation

Sichuan: service capability openness

Jiangsu: network migration and featured services

Zhejiang: enterprise

Highlights

Gm IMS-CN Eyebeam(soft client)

Mw CSCF CSC3300 (CSCF) HWNc MGCF CDMA MSC ALUNc MGCF LMSD Core Ericsson

Nc MGCF SoftX3000(NGN), CSOFTX3000(CDMA) HW

Cx CSCF HSS HWDx CSCF SLF HW

ISCAS ICSCF Ericsson

ISCAS CSCF HW

ISCAS CSCF NSN

ISC CSCFIM/PS server ASB/ALU

ISC CSCFPSS/PES AS Ericsson

ISC CSCF Centrex AS, Conferencing AS HW

ISC CSCF Conferencing AS NSN

ISC CSCF iVPN Xing Fang

communications portal (ECP)Guangdong: nested services

Value

Verify the interoperabilitybetween IMS-CN and UE/AS, the interworking between IMS-CN and existing SoftSwitch/MSC.

Validate the commercialization and flexibility of IMS-CN

And More IOTs……..co-operation in the industryco-operation in the industry

tested interconnection with all major vendors in the industryfinished IMS IOT (GMI 2006/2008) by BT/Vodafone, Verizon, China Mobile, etc.

Contents

Requirements on Protocol Test Tool

Signaling simulation for SIP, H.248, Diameter, MGCP, ISUP, ISDN, …etc. Text editing for text-based protocols as well as binary protocol extension

Functionalities

Message conformation test.Network level latency, jitter, packet loss rate simulation.Protocol syntax and semantics validationProtocol robust and compatibility testing

Tool for SIP Protocol TestFlow

customization

Message editingMessage editing

Execution statistics

oneTest

Tool for Diameter Protocol TestFlow

customization

Message editingMessage editing

Automatic response

oneTest

Flow customization

Tool for H.248 Protocol Test

Message editing

Execution statistics

oneTest

HSSMGCF

PSS

CSCF

SBC SBCAGCF

Retrieve calling procedureNode troubleshooting End to End User

Signaling

Tool for Tracing

Retrieving signaling on elementInterface troubleshooting

Retrieving internal messageRoot cause analysis

Element Signaling

Element’s Internal Message

Contents

Example I taken from an IOT

Problem : When a new session initiated by AS sends INVITE to S-CSCF, 404 failure response is returned by S-CSCF.

--------------------------------------------------------------------------------------------------Description:

There are scenarios , where the AS wants to initiate a new session with a destination that may be a CS user. The terminating I/S-CSCF could reject the INVITE request, because the destination is not a IMS user.

Issue:A special transit function is defined in 3GPP, supporting such scenarios. But not all manufacturers (S-CSCF) support this function.

Recommendation:Modify the specification, so that all S-CSCFs are required to support

the transit function.

Example II taken from an IOT

Problem: An IP Centrex session with tel uri initiated by AS is rejected by S-CSCF

------------------------------------------------------------------Description:By IP Centrex, an AS replaces the caller’s display information in the from header by short number. Then, when AS forwards the INVITE request to S-CSCF the request is rejectedrequest to S-CSCF, the request is rejected.

Issue:Some manufacturers‘ S-CSCF check TEL URI strictly according to RFC 3966. But the short number can not be written in an tel uri which complies with the standard.

Recommendation:All S-CSCF is required to support the special TEL URI.

Example III taken from an IOT

Problem: The length of from-tag is too long which makes S-CSCF return 500 failure response.

------------------------------------------------------------------Description:In MMTEL AS IOT scenarios, some AS initiates an INVITE request with a too long from-tag. When S-CSCF receives the request, it will return 500 error responsereturn 500 error response.

Issue:The length of from-tag is not clearly defined in 3GPP, therefore different S-CSCF manufacturers define different length limits

Recommendation:Modify the specification, so that all S-CSCFs are required to support 64 bytes length of tag.

Contents

PLMN/PSTN

S-CSCF/BGCF MGCF

HSS AS

ENUM/DNS

Vendor LAB

NSN CMCC R&D Center

Ericsson

HW

ALU CMCC R&D CenterVerizon lab, USA

Avaya TMF forum

Genband ZTE Nanjing

BEA

Vendor LAB

Vendor LAB

Nominum ZTE Nanjing

Ericsson CMCC R&D Center

ALU

HW

NSN

Vendor LAB

Nortel Verizon lab, USA

NSN CMCC R&D Center

Ericsson

Interfaces of IMS IOT

Other IPNetworks

Internet

GGSN/PDSN SBC/BGF/A

GW/HA

PCRF/xRACF/SPF

P-CSCF I-CSCF IM-MGWNortel Verizon lab, USA

Ericsson

HW

ALU

Teles BT lab, GMI 2008

Vendor NSN ALU Ericsson Nortel Starent HW NCS Tekelec

LAB Verizon lab, USA BT lab, GMI 2008

Summary of Experience

Test PlanDaily Review Arbitration Organization Effective Communications Test ReportsTest ToolsFollow-up in Standardizations

into the future…