NGN interoperability

21st CJK UNIOT-WG2011.7.11-13

TTCHideo HIMENO (h-himeno@bc.jp.nec.com)

Kaoru KENYOSHI (kaoru.kenyoshi@emea.nec.com)

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Outline

Introduction

Discussion- VoIP service testing for NGN UNI

- Multimedia service testing for NGN UNI

- PSTN/ISDN simulation service protocol

Conclusion

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Highlight of Current Activities

SG11 creates NGN Interoperability documents map to show the relationship of testing specifications.Draft Rec.Q.3948 “VoIP service testing framework for NGN UNI” was completed at last meeting.The new work programme “Multimedia service testing framework for NGN UNI” was launched.The new work programme “PSTN/ISDN simulation service protocol” was started.Emerging next issue from SG11 that M2M interoperability, Cloud Computing interoperability and new technology testing.

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NGN testing specifications document mapNGN TM local testing NUT testing

1.1 Functional testing

1.2 Load&Stress testing

1.3 Conformance testing

2.1 Functional testing

2.2 Interconnect testing

2.3 Service testing

2.4 End-to-End testing

2.5QoS testing

2.6 Mobility&Roaming testing

Specificationprocess

General Procedure

Methodology

Model network configuration & requirement

Test scenarios

Formalized results

Handbook of testing

Draft Q.3909 NGN interoperability

Q.3900

Q.3901

Q.3903

Q.3906 Draft Q.3948Service testing framework for VoIP at NGN UNI

Interoperability testing

Conformance

testing

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Introduction

Discussion- VoIP service testing at NGN UNI

- Multimedia service testing for NGN UNI

- PSTN/ISDN simulation service protocol

Conclusion

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Draft Q.3948 Service testing framework for VoIP at NGN UNI

TTC developed Technical Reports to specify the detailed protocol specifications at NGN UNI and NNI for interoperability between Japanese operators.TTC developed TTC standards JT-Q3401 and JT-Q3402 which consist of the translation part of ITU-T Recommendations and TTC original specifications as Annex and Appendix.

ITU-T Q.3402

TTC TR-9024

TTC JT-Q3402

TTC additional spec.

Down stream

Main textAnnex

Appendix

Main text

AnnexAppendix

ITU-T Q.3948 Service testing framework for VoIP at NGN UNI

Technical information

Annex

ITU-T Service

specifications for

VoIPUp stream

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VoIP testing terminal model in draft Q.3948

Draft Q.3948 defines the “VoIP test object” which is described as the block diagram of SIP multimedia communication terminal and blue coloured parts are the “VoIP test object”.The profiles on VoIP test object is described in this draft document.

Video I/O element

Audio I/O element

System controlUser Interface

Video codec(MPEG4, H.264)

Audio codec(G.711)

RTP / RTCP(RFC3550)

System control

SIP(RFC 3261)

SDP(RFC 4566)

Local Area Network Interface

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VoIP testing sequence in draft Q.3948

Draft Q.3948 defines the “Basic Call service sequence”

No. Sequence1 Terminal registration

(access-line based authentication)2 Deletion of terminal registration

(access-line based authentication)3 Call origination to disconnection

(IPv4, Use of timer and 100rel, G.711 μ-law)4 Call termination to disconnection

(IPv4, Use of timer and 100rel, G.711 μ-law)5 Call cancellationBusy on the terminating side6 Busy on the terminating side

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Call origination to disconnectionin draft Q.3948

Terminal Network

SIP domain: example1.ne.jpTEL: 03-1111-1111, 03-1111-1112IP (SIP/RTP): 192.0.1.1

IP (SIP): 192.0.1.10IP (RTP): 192.0.1.11

F1: INVITE

F2: 100 Trying (INVITE)

Figure 7 Call origination to disconnection (IPv4, Use of timer and 100rel, G.711 -law) (access-line based

authentication)

F3: 180 Ringing (INVITE)

F4: PRACK

F5: 200 OK (PRACK)

F6: 200 OK (INVITE)

F7: ACK

Communication

～～ ～～F8: UPDATE

F9: 200 OK (UPDATE)

～～ ～～F10: BYE

F11: 200 OK (BYE)

INVITE tel:0322222222;phone-context=example1.ne.jp SIP/2.0Via: SIP/2.0/UDP 192.0.1.1:5060;branch=z9hG4bK12345678-11111121Route: <sip:192.0.1.10;lr>,<sip:s-cscf.example1.ne.jp;lr>Max-Forwards: 70To: <tel:0322222222;phone-context=example1.ne.jp>From: <sip:0311111112@example1.ne.jp>;tag=1234abcd-11111121Call-ID: qwertyuiop111112@192.0.1.1CSeq: 1 INVITEContact: <sip:zxcvbnm@192.0.1.1>P-Preferred-Identity: <sip:0311111112@example1.ne.jp>Privacy: noneAllow: INVITE,ACK,BYE,CANCEL,PRACK,UPDATESupported: 100rel,timerSession-Expires: 300Content-Type: application/sdpContent-Length: 195

v=0o=- 82664419472 82664419472 IN IP4 192.0.1.1s=-c=IN IP4 192.0.1.1t=0 0m=audio 10000 RTP/AVP 0 96a=rtpmap:0 PCMU/8000a=rtpmap:96 telephone-event/8000a=fmtp:96 0-15a=ptime:20

F1: INVITE

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Introduction

Discussion- VoIP service testing for NGN UNI

- Multimedia service testing for NGN UNI

- PSTN/ISDN simulation service protocol

Conclusion

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Fundamental Structure of MM service testing spec. is based on Q.3948 “VoIP service testing at NGN UNI”MM service contains many sub-service

- Video Phone- Video Conference- Data Conference

2 part structures of MM service testing- MM service framework testing

Profiles Testing preparation

- Sub-service testing(ex. Video Phone service)

Test procedure Test cording

How to develop NGN Multimedia service testing specification

Q.NGN interoprability

Q.3909

VoIP service testing at NGN

UNI

MM service testing framework

PSTN/ISDN simulation service

testing

Data Conference

Q.3948

Video Conference service testing

Video Phone service testing

Annex SD(MPEG)SD(H263)HD(H264)

•Profiles•Preparation

•Procedure•Cording

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Interoperability Test for“Multimedia Service Testing”

Profile sample of MPEG-4Item Specification(for high rate) Specification(for low rate)Call controlCapability exchange

SIP (RFC3261)SDP (RFC2327)Capability exchange (RFC3264)

Same as for high rate

Media transmission RTP (RFC3550, RFC3551)RTCP (RFC3550 Option)MPEG-4 packetization (RFC3016)

Same as for high rate

Video:Video encoding methodFrame size

(RECOMMENDED)

MPEG-4 Visual (SP@L3)CIF

MPEG-4 Visual (SP@L0)QCIF

Audio:Audio encoding method(RECOMMENDED)

JT-G711μ-law Same as for high rate

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Introduction

Discussion- VoIP service testing for NGN UNI

- Multimedia service testing for NGN UNI

- PSTN/ISDN simulation service protocol

Conclusion

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Launching New Work Programme“PSTN/ISDN simulation service”

ITU-T Rec. Q.2211 defines - OIP, OIR, TIP, TIR, MCID, ACR, CDIV, HOLD, CB, CCBS,

CW, MWI, CONF, AOC, ECT, RC, UPT, CRBT, CRTProcess to develop protocol specifications

- Step 1: Define the target of PSTN/ISDN simulation services to develop service protocol specifications

- Step 2: Define the reference base specification of other SDOs (ex. TISPAN, 3GPP)

- Step 3: Modify base reference specifications and adjust them to ITU-T requirements and architectures, etc

Detailed protocol specifications of global standard are needed to achieve interoperability

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Next SG11’s meeting plan for “PSTN/ISDN simulation service”

SARVICE CANDIDACY

Step 1Target

CDIVCommunications Diversion

OIP/OIROriginating Identification Presentation / Restriction

Step 2Reference

ETSI TS 124 504(3GPP TS 24.504)

ETSI TS 124 407(3GPP TS 24.407)

Step 3Modification

TBD(ex. Based TTC TR-1015 and other documents)

TBD(ex. Based TTC JT-Q.3402

and other documents)

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Introduction

Discussion- VoIP service testing for NGN UNI

- Multimedia service testing for NGN UNI

- PSTN/ISDN simulation service protocol

Conclusion

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Conclusion and Challenge

VoIP service testing at NGN UNI - Draft Q.3948 (May 2011 resent approved)

Multimedia service testing at NGN UNI(Real-time multimedia service) - Draft Q.MultimediaTEST (new item)

Creating PSTN/ISDN simulation service protocol (TIP/TIR, OIP/OIR, HOLD etc)- Recent launched

Planning New Interoperability testing

CJK should promote the study of NGN interoperability as the leader countries of ITU-T