Telecom System Subject Seminar

Teacher: Truong Thu Huong

3G VIDEO TELEPHONY

Student: Group 5

IP to 3G-324M

To day, many current IP-based applications that run well over mobile devices but

These are all non-delay sensitive services. ( Transmission delay and packet overheads)

IP network has servere limitations in its ability to support, in addtion to voice, delay-sensitive applications.

Don’t provide sufficient address space to handle tons of IP-enabled mobiles.

• Solutions: Moving to full IP version 6. Adopt 3G-324M.

?

Third Generation PartnerShip Project

3GPP defining migration from GSM to UMTS (W-CDMA)

Core network evolves from GSM-only to support GSM, GPRS and new W-CDMA facilities

6 Organizational Parters are ARIB, ATIS, CCSA, ETSI, TTA, TTC.

The Four Technical Specification Groups (TSG) in 3GPP are RAN, SA, CT, GFRAN.

3GPP standards are structured as Releases.

3GPP RELEASES

Phase 1: GSM features. Phase 2: GSM features, EFR codec.

… 3GPP Release 5: Introduced IMS and HSPDA. 3GPP Release 6: Intergrated operation witth wireless LAN

networks and adds HUSPA, MBMS…

… 3GPP Release 11: Advanced Interconnection of Services. 3GPP Release 12: Content still open.

3GPP rel99 Architecture (UMTS) Specified the first UMTS 3G network 3G Radios

SS7

IP

BTS

BSCMSC

VLR

HLRAuC

GMSC

BSS

SGSN GGSN

PSTN

PSDN

CN

CD

GcGr

Gn Gi

Abis

Gs

B

H

BSS — Base Station SystemBTS — Base Transceiver StationBSC — Base Station Controller

RNS — Radio Network SystemRNC — Radio Network Controller

CN — Core NetworkMSC — Mobile-service Switching ControllerVLR — Visitor Location RegisterHLR — Home Location RegisterAuC — Authentication ServerGMSC — Gateway MSC

SGSN — Serving GPRS Support NodeGGSN — Gateway GPRS Support Node

AE PSTN

2G MS (voice only)

2G+ MS (voice & data)

UMTS — Universal Mobile Telecommunication System

Gb

3G UE (voice & data)

Node B

RNC

RNS

Iub

IuCS

ATM

IuPS

3GPP rel4 Architecture (UMTS) Soft Switching

SS7

IP/ATM

BTS

BSCMSC Server

VLR

HLRAuC

GMSC server

BSS

SGSN GGSN

PSTN

PSDN

CN

CD

GcGr

Gn Gi

Gb

Abis

Gs

B

H

BSS — Base Station SystemBTS — Base Transceiver StationBSC — Base Station Controller

RNS — Radio Network SystemRNC — Radio Network Controller

CN — Core NetworkMSC — Mobile-service Switching ControllerVLR — Visitor Location RegisterHLR — Home Location RegisterAuC — Authentication ServerGMSC — Gateway MSC

SGSN — Serving GPRS Support NodeGGSN — Gateway GPRS Support Node

ANc

2G MS (voice only)

2G+ MS (voice & data)

Node B

RNC

RNS

Iub

IuCS

IuPS

3G UE (voice & data)

Mc

CS-MGW

CS-MGWNb

PSTNMc

ATM

3GPP rel5 Architecture IP multimedia

3GPP re6 Architecture WLAN integration

WHAT IS THE 3G-324M?

3G-324M is the 3GPP umbrella protocol for video telephony in 3G mobile networks.

3G-324M is based on the ITU-T specifications for multimedia conferencing over Circuit Switched networks.

3G-324M is a proven solution for conversational multimedia based services that packet.

3G-324M System

H.223Annex AAnnex BAnnex CAnnex D

Data protocolsV.14, LAPM

Audio(speech) Codec AMR G.731.1

Call Control

3GWirelessNetwork

I/F

Video codecH.263/MPEG-4

WirelessNetwork

Command & ControlH.245

3G-324M Sub protocols and technologies

H.223 Multiplexing/Demultiplexing. H.245 Call Control Channel. 3G-324M Adaption Layers.

Diagram illustrating the key elements of the 3G-324M spec

3G-324M Protocol Stack

Hierarchical class structure of H.245

Protocols H.223

The H.223 Module is the multiplexer/demultiplexer module responsible for communication with a bit stream driver such as WCDMA, TD-SCDMA, CDMA2000 and ISDN.

The H.223 Module contains Adaptation Layers (ALs) for handling error detection according to the traffic content of each logical channel such as voice, video, data and call control.

The 3G-324M toolkit supports the following H.223 annexes

Annex A : Specifies the protocol that handles a light error prone channel.

Annex B : Specifies the protocol that handles a medium error prone channel.

Annex C & D : Specifies the protocols that handle highly error prone channels.

The Toolkit supports three types of Adaptation Layers (ALs)

AL1 : Used to control the call H.245 and AL1 assumes that the upper layer provides error control.

AL2 : Contains speech, error detection and sequence numbering mechanism.

AL3 : Contains video, error detection, sequence numbering mechanism and retransmission mechanism

Channels

There are 4 channel in 3G-324: Control channel Voice channel Audio channel Video channel

Channels

Control channel It pass control commands and

indications to remote counterparts.

Terminal-to-model control conforms to [ITU-T V.250]

Terminal-to-terminal control is according to [ITU-T H.245]

Voice Channel

Adaptive Multi-Rate (AMR) : AMR is a codec used to compress the audio data. providing the best possible voice quality based on radio conditions.

G.723.1 : the G.723.1 codec can be used for compressing the speech or the audio component of multimedia services at a very low bit rate

Table list a number of channels audio

The video channel

MPEG-4 : Is a method of defining compression of audio and visual (AV) digital data.

H.263 : Is a video compression standard originally designed as a low bitrate compressed format for videoconferencing.

The table lists a number of video channels 3G-324m

QoS

What is Quality of Service? Quality of Service carriers different connotations for

different people. It is the end users who pay for the service, and whose

perspectives matter most. QoS defines the characteristics of service delivery that impact most critically his/her perception of the service.

QoS

the three main characteristics of a network delivering QoS to an end user are as follows: Availability of the service. Quality of information. Consistent delivery.

QoS

At a technical level, QoS is characterized by a set of measureable parameters such as: Service availability. Delay. Delay variation. Throughput. Packet loss rate.

QoS

UMTS QoS Classes: UMTS define four different classes: Conversational class. Streaming class. Interactive class. Background.

Call flow example

Call flow example.

UE call another UE

Call flow example.

PSTN call UE:

Call flow example.

UE call PSTN

3G Video Telephony Deployment in foreign

•Europe, Japan, Korea, Taiwan, and Australia 3G networks are commercially available and operators are offering video telephony services on the circuit-switch approach.

•Handsets that support conversational video telephony on 3G networks are being produced.

-

3G Video Telephony Deployment in foreign

Asia:o Japanese operator NTT DoCoMo has announced that its

freedom of mobile multimedia access (FOMA) 3G video telephony service.

o SK Telecom is the first network in South Korea. The second is KT.

3G Video Telephony Deployment in foreign

United States:o The first network to go commercially live was by Monet

Mobile Networks, on CDMA2000 1xEV-DO.o The second 3G network operator was Verizon Wireless.o AT&T Mobility is also a true 3G UMTS network.

3G Video Telephony Deployment in foreign

Europe:o The first European pre-commercial network was an UMTS

network on the Isle of Manx Telecom.

o The frist commercial network in Europe was opened for business by Telenor.

3G Video Telephony Deployment in foreign

Southern hemisphere:

The first pre-commercial demonstration network was built Adelaide, South Australia using UMTS on 2100MHz.

Africa: Emtel Launches the first 3G network.

3G Video Telephony Deployment in foreign

Figure : Global Growth of 3G Subscribers.

3G Deployment in Vietnam

In August 2009, four enterprises including Viettel, MobiFone, VinaPhone anh EVN-Telecom were awarded licenses to built infrastructure and provide c3G services in the 1900-2200MHz.

3G Deployment in Vietnam

Figure 1: Market share of Mobile phone Subscriber (as of July 2010)

The Current status op 3G development in Vietnam

Figure 2: 3G Network Investment Pledge of Operators

__m: million

The Current status op 3G development in Vietnam

The service was by provided: Communications services(video

calls, Rich voice…). Entertainment services (Video-

Music downloading, video streaming…)

Billing services (Mobile Payment) Personal assistance service (data

transmission, e-mail…)

The Current status op 3G development in Vietnam

Q2’2010 Vietnam has about 7 million subscriber: MobiFone: 4 million subscriber. Vinaphone and Viettel: 1.5 million subscriber.

The number of 3G subscribers in Vietnam will be much lower.

3G Video Telephony deployment in Vietnam

Video telephony has not developed in Vietnam telecommunications market.

Additional Reference Material

Mobile Standard Organizations

ARIB (Japan)

T1(USA)

ETSI (Europe)

TTA(Korea)

CWTS (China)

TTC(Japan)

TIA(USA)

Third Generation Patnership Project (3GPP)

Third Generation Partnership Project II

(3GPP2)

ITU

Mobile Operators ITU Members

IS-95), IS-41, IS-2000, IS-835GSM, W-CDMA, UMTS

Partnership Project and Forums

ITU IMT-2000 http://www.itu.int/imt2000 Mobile Partnership Projects

3GPP: http://www.3gpp.org 3GPP2: http://www.3gpp2.org

Mobile Technical Forums 3G All IP Forum: http://www.3gip.org IPv6 Forum: http://www.ipv6forum.com

Mobile Marketing Forums Mobile Wireless Internet Forum: http://www.mwif.org UMTS Forum: http://www.umts-forum.org GSM Forum: http://www.gsmworld.org Universal Wireless Communication: http://www.uwcc.org Global Mobile Supplier: http://www.gsacom.com

Mobile Standards Organizations

European Technical Standard Institute (Europe): http://www.etsi.org

Telecommunication Industry Association (USA): http://www.tiaonline.org

Standard Committee T1 (USA): http://www.t1.org

China Wireless Telecommunication Standard (China): http://www.cwts.org

The Association of Radio Industries and Businesses (Japan): http://www.arib.or.jp/arib/english/

The Telecommunication Technology Committee (Japan): http://www.ttc.or.jp/e/index.html

The Telecommunication Technology Association (Korea): http://www.tta.or.kr/english/e_index.htm

THANK YOU FOR WATCHING!