3g 이동통신망의 multimedia 서비스를 qos...
TRANSCRIPT
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
목 차
1. 3G Multimedia Service Network Configuration
2. 3GPP UMTS System QoS Architecture
3. 3GPP2 cdma2000 System QoS Architecture
4. Issues and Summary
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
1. 3G Multimedia Service Network Configuration
2. 3GPP UMTS System QoS Architecture
3. 3GPP2 cdma2000 System QoS Architecture
4. Issues and Summary
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
3세대 이동통신 네트웍의 특징
n Wireless Mobile Packet Data Communication ¨ High Speed Wireless Data 통신 시스템
¨Mobile Wireless Internet Access Network
n Extend the transparent Internet Services¨ on top of the mobile device
n All IP Network and Multimedia Services¨모든 네트웍요소를 IP 로 연결
¨모든 서비스를 IP 기반으로 제공
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n IT Technology shift ¨ from Circuit technology to packet technology
¨ de facto packet standard technology is IP technology
¨ drives 3G system networking and services into IP world
n Driving force - Cost and Services¨ IETF protocol, Multimedia data are cheap and
prevailing in Internet industry.
All IP Network and Multimedia Services
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n IP based call and media services¨Multimedia Services over the Internet, SIP based
VoIP and Multimedia Call
n IP switch for the voice over packet (IP MSC)¨Media Gateway and Controller replace legacy
Switch
¨ Transmission efficiency, cost , open interface, and scalability
n IP in the RAN ¨ IP transportation over Iub/Iur and Abis/A3/A7 etc.
All IP Network and Multimedia Services
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Cdma2000 Network Configuration
BTSBSC/PCF
BSC3/PCFBTS
Abis
A3/A7
Abis
BTS
MM
AAA
AGW/PDSN
HLR/AUC
MSCServer
SCP
IP network
R-SGW
T-SGW
MGW
T-SGW
SCM BR
HA
MGW
R-SGW
MRF
DB
PDE/PS
CQMIP
networkInternet
PSTN/PLMN
IP network(Intranet)
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
IP MultimediaHome Domain
TIA-EIA-41 PS Home Domain
HomeRAN
PDSN
AGW IP MultimediaVisited Domain
Internet
BR
MS
VisitedRAN
AGW
PDSN
TIA-EIA-41 PS Visited Domain
BR
MS
TIA-EIA-41 CS Home Domain
TIA-EIA-41 CS Visited Domain
BR BR
BSCBSC
PSTN/PLMN
IP coreNetwork
IP coreNetwork
Cdma2000 Network ConfigurationDomain View
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Operator Networks control SIP based VoIP and Multimedia Call Connection Servicesand QoS. Various new services shall be supplied and controlled by the SCM
AGW/PDSN
MRFHA SCM
SIP client
UDP
IP
SIP server
PPP
Airlink
IP
PPP
RAN link
IP
link link
IP
link
UDP
IP
link
SIP client
UDP
Sup. Service Sup. service OperatorSpecific Services
< Control Plane >
RTP
UDP
IP
PPP
Airlink
IP
PPP
RAN link
IP
link link
IP
link
RTP
UDP
Voice/image
< User Data Plane >
Voice/image
SIP server
UDP
IP
link
Sup. service
End-to-End SIP based VoIP protocol in the IP multimedia Domain
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
ISPDomain
Operator Networks control only the IP connectivity, support Internet access Services.End-to-End VoIP is done beyond the control of the Operators network, it is controlledby the ISP network entities.
AGW/PDSN
MCUHA SIP server
SIP client
UDP
IP
SIP server
PPP
Airlink
IP
PPP
RAN link
IP
link link
IP
link
UDP
IP
link
SIP client
UDP
Sup. Service Sup. service
< Control Plane >
RTP
UDP
IP
PPP
Airlink
IP
PPP
RAN link
IP
link link
IP
link
RTP
UDP
Voice/image
< User Data Plane >
Voice/image
SIP server
UDP
IP
link
Sup. service
ISPspecific services
End-to-End SIP based VoIP protocol in the Internet
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
UMTS Network Configuration
Gf Gi
Iu
GiMr
Gi
Ms
Gi
R UuMGW
Gn
Gc
TE MT UTRAN
Gr
SGSN GGSN
EIR
MGCF
R-SGW *)
MRF
MultimediaIP Networks
PSTN/Legacy/External
Applications &Services *)
Mm
Mw
LegacymobilesignallingNetwork
Mc
Cx
AlternativeAccess
Network
MhCSCF
CSCFMg
T-SGW *)
T-SGW *)
HSS *)
HSS *)
Applications& Services *)
MSCserver GMSC server
McMc
D C
SCP
CAP
MGWNb
Nc
Iu
Iu
R-SGW *)Mh
CAPCAP
R UmTE MT
BSS/GERAN Gb
A
Iu
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
UE
Home NetworkIM Subsystem
Visited NetworkIM Subsystem
Inter -NetworkIM Backbone
Internet
Intranets
Visited NetworkPS Domain Backbone
Home NetworkPS Domain Backbone
Inter -PLMNBackbone
BG
BG
GGSN
GGSN
BG
BG
Gp
Gp
Gi
SGSN
SGSN
Traffic tunneledover GPRS
Gi Implementedon VPN or dedicated resources
for each instance
UTRAN
UTRAN
UE
UMTS Network ConfigurationDomain View
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n Legacy Service QoS management¨ circuit switched network - End-to-End fixed slot/
bandwidth 할당 또는 거부(call block)
¨ Best Effort network - packet 단위 관리, drop 또는지연
¨성공적인 서비스 운영 및 제공
n IP multimedia and VoIP QoS management¨ packet 꾸러미 단위 관리의 All IP and IP network 에
서 conversational service를 제공함.
¨ drop 또는 지연의 factor를 end-to-end 로 관리해야하는 새로운 QoS 요구사항이 준수되어야 함
QoS
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
1. 3G Multimedia Service Network Configuration
2. 3GPP UMTS System QoS Architecture
3. 3GPP2 cdma2000 System QoS Architecture
4. Issues and Summary
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n TS23.107¨ QoS concept and architecture
¨ End-to-End QoS 를 만족시키기 위한 체계
n Concept and Architecture¨계층별로 QoS 를 구분
¨계층별 QoS를 만족하게 함으로써 end-to-end QoS를 만족
¨계층별 상호 QoS 관리 신호전달
¨ Traffic Class 별 QoS parameter 관리
UMTS QoS
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
End-to-End QoS architectureTE MT UTRAN CN Iu
EDGENODE
CNGateway
TE
UMTS
End-to-End Service
TE/MT LocalBearer Service
UMTS Bearer Service External BearerService
UMTS Bearer Service
Radio Access Bearer Service CN BearerService
BackboneBearer Service
Iu BearerService
Radio BearerService
UTRAFDD/TDD
Service
PhysicalBearer Service
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
UMTS QoS classes
Traffic class
Fundamental characteristics
Example ofthe
application
Conversational classConversational RT
Streaming classStreaming RT
Interactive classInteractive besteffort
BackgroundBackground best effort
-Preserve time relation (variation) between information entities of the stream - Conversational pattern (stringent andlow delay )
Preserve timerelation (variation) between information entities of thestream
-Requestresponsepattern
-Preserve payload content
-Destination isnot expecting
the data withina certain time
-Preserve payload content
-voice -streaming video -Web browsing -background download of emails
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
UMTS bearer attributes
Traffic class Conversational Streaming Interactive Backgroundclass class class class
Maximum bitrate X X X XDelivery order X X X XMaximum SDU size X X X XSDU format information X XSDU error ratio X X X XResidual bit error ratio X X X XDelivery of erroneous SDUs X X X XTransfer delay X XGuaranteed bit rate X XTraffic handling priority XAllocation/Retention priority X X X X
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n Control plane function¨ Service manger - establishing, modifying and maintaining the service
¨ Translation - service attributes and QoS attributes
¨ Admission/Capability control - network의 모든 자원 관리
¨ Subscription control - 가입자 요구 QoS와 등록된 QoS 비교
n User plane function¨Mapping - QoS marking
¨ Classification - MT의 QoS attribute에 기반한 분류
¨ Resource manger - scheduling, bandwidth management
¨ Traffic conditioner - by policing or by traffic shaping
QoS Management Functions
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
QoS management functionsin the control plane
Transl. Transl.
Adm.Contr
.
RABManager
UMTS BSManager
UMTS BSManager
UMTS BSManager
Subscr.Control
Adm./Cap.Control
MT GatewayCN EDGEUTRAN
Ext.ServiceControl
LocalServiceControl
Iu BSManager
Radio BSManager
Iu NSManager
UTRAph. BS M
Radio BSManager
UTRAph. BS M
Local BSManager
Adm./Cap.Control
Adm./Cap.Control
Adm./Cap.Control
Iu BSManager
Iu NSManager
CN BSManager
Ext. BSManager
CN BSManager
service primitive interface
BB NSManager
BB NSManager
protocol interface
TE Ext.Netw.
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
ResourceManager
Mapper
Classif.
Cond.
ResourceManager
ResourceManager
Mapper
ResourceManager
Mapper
ResourceManager
ResourceManager
Cond.
Classif.
Cond.
MT GatewayCN EDGEUTRAN
BB network serviceIu network serviceUTRA phys. BS
data flow with indication of direction
TE Ext.Netw.
Local BS External BS
QoS management functionsin the user plane
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
ResourceManager
Mapper
Classif.
Cond.
GatewayGGSN
(BB network service)ResourceManager
ResourceManager
Mapper
CN EDGESGSN
External BS
Intermediate BB network QoS
IP network
- BB network의 IP node/switch가 존재 하게 되는데 per flow 기반의 VoIP multimedia session을 어떻게 관리 할 것인가?
- RSVP ? Diffserv ? 다른 대안은?
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
ResourceManager
Mapper
Classif.
Cond.
GatewayGGSN
External BS
R5 - IP Multimedia Subsystem QoS
- Native IP Network 에서의 Per Flow based End-to-End QoS관리의 방법은?
IP networkfor
IM subsystem
MGWMRF
MGC
SGWCSCFPSTN/PLMN
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
1. 3G Multimedia Service Network Configuration
2. 3GPP UMTS System QoS Architecture
3. 3GPP2 cdma2000 System QoS Architecture
4. Issues and Summary
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n P.S0001-B : Wireless IP network 표준¨ End-to-End VoIP를 위한 MS to PDSN PPP link QoS
관리 기능이 준비됨
¨ TSG-P의 방안은 확정 되었으나 RAN과 A/I에는 TSG-P요구 기능이 반영되지 않은 상태임.
¨계층별로 QoS 로 구분하자는 QoS architecture의 정립은 이루어지지 않았고 draft상태임n 계층별 상호 QoS 관리 신호전달
n Traffic Class 별 QoS parameter 관리
Cdma2000 IP multimedia QoS
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
End-to-End QoS architecture
MS HA CNRAN PDSN
End-to-End service
PPP link service External bearer service
R-P bearerservice
IS2000 radio bearerservice
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
TSG-P Traffic classes for cdma2000
Traffic classServiceinstancetype
Priority Headercompression
Applications
Background Primary (SI-TYPE-1)
Verylow
VJRFC2507
FTP, Email,Streaming text
Interactive Primary(SI-TYPE -1)
Low VJRFC 2507
Web browsing
Streaming Secondary(SI-TYPE -3)
High ROHC Streaming audio andvideo
Secondary(SI-TYPE -2)
Veryhigh
ROHC 0-byteROHC 0-byte lite
EVRC VoIP (for end-to-end VoIP MS andHybrid VoIP MS)
Conversational
Secondary(SI-TYPE -3)
High ROHCRFC2508
Multimedia
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n MS과 PDSN사이의 단일 PPP link상에서 RTP/UDP/IP의stream 구분에 따른 독립된 QoS관리
n Stream 별 radio bearer service instance(SR_ID)를 구분하여 QoS 관리
n SR_ID에 따른 R-P bearer connection 을 구분하여 QoS 관리
n MS이 application의 stream 에 따른 service instance의생성 소멸을 제어
n MS는 MCFTP protocol을 사용하여 PDSN에 stream flow에 대한 QoS profile(traffic flow template)전달
PPP link QoS management
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Multiple Connection Relationships
PPP session
R-P session
R-PConnectio
R-PConnectio
R-PConnectio
ServicInstanc
Serviceinstanc
Servicinstanc
PPP session MS
PDSN
Ch1=
sr
_id1
Ch2=
sr
_id2
ch3=
sr
_id3
IP1TFT_ch
IPn(TFT_ch1TFT_ch
IP1TFT_ch
IPn(TFT_ch1TFT_ch
BSC/PCF
TFT_ch1 indicates a TFT over Ch1 orService instance identified by SR_ID1.One TFT for each MS IP addresses (IP1,.. IPn)and for each Channel (SR_ID) may exist.
One PPP session for one R -P session per MS
Multiple R -P connections for each R -P session
The channel connecting the service instancsand the R -P connections are identified byservice reference Ids.
On the MS side, each instance of a serviceoption indicates a service instance.
PPP session
R-P session
R-PConnectio
R-PConnectio
R-PConnectio
ServicInstanc
Serviceinstanc
Servicinstanc
PPP session MS
PDSN
Ch1=
sr
_id1
Ch2=
sr
_id2
ch3=
sr
_id3
IP1TFT_ch
IPn(TFT_ch1TFT_ch
IP1TFT_ch
IPn(TFT_ch1TFT_ch
BSC/PCF
TFT_ch1 indicates a TFT over Ch1 orService instance identified by SR_ID1.One TFT for each MS IP addresses (IP1,.. IPn)and for each Channel (SR_ID) may exist.
One PPP session for one R -P session per MS
Multiple R -P connections for each R -P session
The channel connecting the service instancsand the R -P connections are identified byservice reference Ids.
On the MS side, each instance of a serviceoption indicates a service instance.
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
QoS signaling mechanism
MCFTP
MS BSS/PCF PDSN
New SR_IDtraffic
New R-P connection
SIP signaling SIP Peer
TFTprofile
TFTfilteringandflowselection
Service InstanceCH
R-PConnection
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Upper layers
HDLC escaping & framing
PPP
Upper layers
PPP
HDLCun-framing &un-escaping
HDLCun-framing &un-escaping
SI-TYPE_2
SI-TYPE_1
SI-TYPE_3
A8_1
A8_2
A8_3
A10_1
A10_2
A10_3
Upper layersUpper layers
HDLCun-framing &un-escaping
HDLCun-framing &un-escaping
SI-TYPE_2
SI-TYPE_1
SI-TYPE_3
A8_1
A8_2
A8_3
A10_1
A10_2
A10_3
MS PDSN
PDSNMS
BSC PCF
BSC PCF
HDLC escaping & framing
PPP PPP
SI type별 PPP processing 구조
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
RTP/UDP/IP Overhead
EVRC or SMV packet(22,10, 5, 2 octets)RTP HDPPP HD IP HD UDP HD PPP tailRTP/UDP/IP tail
. FCH 에 전달되는 EVRC, SMV data 에 비하여, VoIP 사용시 PPP/IP/UDP/RTP header가Voice Data크기의 배 이상의 무선 bandwidth를 소모하므로, header compression이요구된다.
. 무선 자원은 유한 하며 단위 FA/Sector당 Data Throughput의 성능개선을 위한 노력을고려 할 때, RTP/UDP/IP 뿐만 아니라 PPP header까지 완전히 제거 하여 FCH을 통한기본음성 통신 시의 무선효율을 요구하고 있다.
. 이에 따라, 다양한 HC algorithm이 제시되고 있으며, 이에 따른 Air I/F의 보완까지요구된다.
. VoIP traffic flow 인 경우 MS와 PDSN의 PPP link에서 header striping/regeneration 적용
Overhead Overhead
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Protocol Stack Diagram for Header Stripping
Header StrippedPayloadsHeader Stripped
Payloads
RLP
MS
CDMA2000 MAC
PPP/MCFTP
IP
BS PCF PDSN
CDMA2k IP
GRE
IP
GRE
IP
GRE
IP
GRE
PPP/MCFTP
IP
RLP
SI-type 2 packet
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
Message Flow for Header Stripping and Generation Operation
1. E2E SIP
2. HSG SO Originate
3. A9 Establish A8
4. A11 Establish A105. A11 Reply
6. A9 Reply
7. HSG SO Connect Order
8. MCFTP Flow Treatment
9. MCFTP Full Header (Rev)
10. MCFTP Full Header (Fwd)
11. Media Flows
MS BS PCF PDSN Internet
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
1. 3G Multimedia Service Network Configuration
2. 3GPP UMTS System QoS Architecture
3. 3GPP2 cdma2000 System QoS Architecture
4. Issues and Summary
CRLCRL제제44회회 추모워크샵추모워크샵
Multimedia ServicesMultimedia Servicesin the Next Generation Networksin the Next Generation Networks
n Delay Budget Management¨ End-to-End, Link-to-Link의 requirement
n Intermediate Transport Node QoSManagement¨ IP router/switch의 QoS 관리 signaling이 요구됨
¨ R-P link , GPRS backbone nodes
n Per flow based QoS management¨ Core Network 에서 UMTS/Cdma2000 IP multimedia
domain 표준 통합이 요구됨
3G VoIP/Multimedia QoS issues