1、 ETSI TS 102 442-2 V1.1.1 (2006-11)Technical Specification Satellite Earth Stations and Systems (SES);Satellite Component of UMTS/IMT-2000;Multimedia Broadcast/Multicast Services;Part 2: Architecture and functional description2 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) Reference DTS/SES-00247-2 Keywor
2、ds architecture, broadcast, IMT-2000, satellite, service, UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 I
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6、o part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the b
7、enefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. 3 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) Contents I
8、ntellectual Property Rights5 Foreword.5 Introduction 5 1 Scope 7 2 Void7 3 Definitions and abbreviations.7 3.1 Definitions7 3.2 Abbreviations .7 4 S-MBMS Architecture .8 4.1 Overview 8 4.2 Reference Architecture Model .9 4.3 S-MBMS Specific Reference points 10 4.3.1 Gmb 10 4.4 S-MBMS Service Provisi
9、on .10 4.4.1 Multicast mode .10 4.4.2 Broadcast Mode10 5 Functional Entities to Support S-MBMS .10 5.1 Broadcast-Multicast Service Centre (BM-SC) .10 5.2 User Equipment11 5.2.1 Multi-mode UE.12 5.3 Intermediate Module Repeater (IMR) 12 5.3.1 Common requirements12 5.3.2 Frequency conversion repeater
10、.13 5.3.3 On-channel repeater13 5.3.4 Node B-based repeater14 5.3.5 Evolved Node B-based repeater15 5.4 USRAN (Gateway).16 5.5 S-MBMS Data Sources and Content Provider .16 5.6 Optional Functional Element16 5.6.1 CBC 16 5.6.2 OSA-SCS16 6 S-MBMS attributes and Parameters.17 6.1 S-MBMS UE Context 17 6.
11、2 S-MBMS Bearer Context .17 6.3 Quality-of-Service (QoS) .17 6.4 Temporary Mobile Group Identity (TMGI) .18 7 Architectural Aspects of S-MBMS User Services .18 7.1 Alternative User Service Support.18 7.2 Access aspects of S-MBMS user services18 8 S-MBMS procedures18 8.1 S-MBMS notification.18 8.2 S-
12、MBMS Multicast Service Activation19 8.3 S-MBMS Session Start procedure19 8.4 S-MBMS Registration procedure .19 8.5 S-MBMS Session Stop procedure 19 8.6 S-MBMS De-registration procedure 19 8.6.1 Gateway initiated De-registration procedure 19 8.6.2 BM-SC initiated S-MBMS De-registration procedure20 8.
13、7 S-MBMS Multicast Service Deactivation 20 8.8 S-MBMS UE Context Synchronization procedure.20 8.9 Inter-system change20 4 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) 8.10 S-MBMS Broadcast Service Activation.20 8.11 S-MBMS Broadcast Service De-activation21 8.12 S-MBMS Service Request procedure.21 8.13 S-
14、MBMS UE Linking/De-linking mechanism .21 8.14 S-MBMS Service Request procedure.21 8.15 Notification in case of parallel services22 9 Security.22 10 Charging requirement.22 10.1 General .22 10.2 Bearer level charging for S-MBMS22 10.3 Application level charging for S-MBMS .22 Annex A (informative): B
15、ibliography.23 History 24 5 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-
16、members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/h
17、ome.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to t
18、he present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). The present document is part 2 of a multi-part deliverable covering Satellite Earth Stations and Systems (SES); Satellite Component of UMTS/IMT-20
19、00; Multimedia Broadcast/Multicast Services, as identified below: Part 1: “Services definitions“; Part 2: “Architecture and functional description“; Part 3: “Introduction in the Radio Access Network (RAN)“; Part 4: “Interworking with terrestrial UMTS networks“; Part 5: “Performances over the radio i
20、nterface“; Part 6: “Security“. Introduction S-UMTS stands for the Satellite component of the Universal Mobile Telecommunication System. S-UMTS systems will complement the terrestrial UMTS (T-UMTS) and inter-work with other IMT-2000 family members through the UMTS core network. S-UMTS will be used to
21、 deliver 3rdgeneration mobile satellite services (MSS) utilizing either low (LEO) or medium (MEO) earth orbiting, or geostationary (GEO) satellite(s). S-UMTS systems are based on terrestrial 3GPP specifications and will support access to GSM/UMTS core networks. NOTE 1: The term T-UMTS will be used i
22、n the present document to further differentiate the Terrestrial UMTS component. Due to the differences between terrestrial and satellite channel characteristics, some modifications to the terrestrial UMTS (T-UMTS) standards are necessary. Some specifications are directly applicable, whereas others a
23、re applicable with modifications. Similarly, some T-UMTS specifications do not apply, whilst some S-UMTS specifications have no corresponding T-UMTS specification. Since S-UMTS is derived from T-UMTS, the organization of the S-UMTS specifications closely follows the original 3rdGeneration Partnershi
24、p Project (3GPP) structure. An S-UMTS system is defined by the combination of a family of S-UMTS specifications and 3GPP specifications, as follows: If an S-UMTS specification exists it takes precedence over the corresponding 3GPP specification (if any). This precedence rule applies to any reference
25、s in the corresponding 3GPP specifications. 6 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) NOTE 2: Any references to 3GPP specifications within the S-UMTS specifications are not subject to this precedence rule. For example, an S-UMTS specification may contain specific references to the corresponding 3GPP
26、 specification. If an S-UMTS specification does not exist, the corresponding 3GPP specification may or may not apply. The exact applicability of the complete list of 3GPP specifications will be defined at a later stage. 7 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) 1 Scope The present document describes
27、 architectural solution and functionalities for the S-MBMS bearer service. 2 Void 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Intermediate Module Repeater: terrestrial repeater which acts as a radio relay betwee
28、n satellite signal and UE in areas where satellite signal is not available (tunnels, etc.) S-MBMS Bearer Service: service provided by the PS Domain to S-MBMS User Services to deliver IP multicast datagrams to multiple receivers using minimum network and radio resources S-MBMS Service Announcement: m
29、echanism to allow users to be informed about the S-MBMS user services availability S-MBMS Service Area: area within which data of a specific S-MBMS session are sent NOTE: Each individual S-MBMS session of an S-MBMS Bearer Service may be sent to a different S-MBMS Service Area. S-MBMS User Service: S
30、-MBMS service provided to the end user by means of the S-MBMS Bearer Service and possibly other capabilities 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACLR Adjacent Channel Leakage Ratio APN Access Point Name BCF Base Common Functions BM-SC Broadc
31、ast Multicast-Service Centre CBC Cell Broadcast Centre CS Circuit Switched DRM Digital Right Management EVM Error Vector Magnitude FDM Frequency Division Multiplexing FSS Fixed Satellite Service GEO Geostationary Earth Orbit GGSN Gateway GPRS Support Node GNSS Global Navigation Satellite System HTTP
32、 HyperText Transfer Protocol IMR Intermediate Module RepeaterLEO Low Earth Orbit MBMS Multimedia Broadcast Multicast Service MEO Medium Earth Orbit MIKEY Multimedia Internet KEYing MMS Multimedia Message Service MSS Mobile Satellite Service 8 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) O Multicast mode.
33、 S-MBMS architecture is based on UTRAN MBMS one, and operated in the PS domain. 4.2 Reference Architecture Model Space SegmentHubIMRSatelliteUE*BM-SCContentprovider3GNetworkGmbmb*Uu* or Uu*+Iub*Iub* or Uu*Uu*Uu*Uu2GNetworkGmbUmGi*MulticastBroadcastSourceFigure 4.1: Reference architecture to support
34、MBMS Multi-mode UE (i.e. satellite and terrestrial 2G/3G radio access enabled) may be developed without additional chain, in that case there is no simultaneous reception/transmission through both satellite and terrestrial modes. The Gateway controls the broadcast transmission in one or several spot
35、beams. It builds the S-UMTS standardized W-CDMA carriers, in PS domain. The architecture is designed to allow several Gateway to share the system capacity and several BM-SC to share the capacity managed by the Gateway. Gmb interface provides access to the control plane functions, Gi provides access
36、to the bearer plane. A particular instance of an S-MBMS Bearer Service is identified by an IP Multicast Address and an APN Network Identifier. Gi reference point is addressed for delivering IP Multicast datagrams to Gateway. See TS 125 106 (see Bibliography). IMRs may be deployed for ensuring covera
37、ge continuity in areas where the satellite signal is deeply obstructed. They may be co-sited with 3G base stations. A Multicast/Broadcast Source may be connected directly to the Gateway, by-passing BM-SC (e.g. for PPDR). 10 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) 4.3 S-MBMS Specific Reference points
38、 4.3.1 Gmb Gmb reference point is addressed for signalling between Gateway and BM-SC, i.e. control plane. Two types of signalling are exchanged: S-MBMS bearer service specific signalling: - The Gateway establishes the S-MBMS bearer context and registers at BM-SC. - The Gateway or the BM-SC releases
39、the S-MBMS bearer context and de-register the Gateway from the BM-SC. - The BM-SC indicates session start and stop to the Gateway including session attributes like QoS or S-MBMS service area. User specific signalling: - The BM-SC authorizes the user specific S-MBMS multicast service activation (join
40、t) at the Gateway. - The Gateway report to the BM-SC the successful user specific S-MBMS multicast activation (join) to allow the BM-SC to synchronize the BM-SC UE S-MBMS context and charging with the S-MBMS UE contexts in the Gateway. - The Gateway reports to the BM-SC when a user specific S-MBMS m
41、ulticast service is released or deactivated to synchronize BM-SC UE S-MBMS contexts and charging with the S-MBMS UE contexts in the Gateway. The BM-SC initiates the deactivation of a user specific S-MBMS bearer service when the S-MBMS user service is terminated. 4.4 S-MBMS Service Provision 4.4.1 Mu
42、lticast mode Reception of an S-MBMS Multicast service is enabled by procedures which require a reliable return link. Return link may be provided by either S-UMTS or T-UMTS or another mobile frequency conversion repeater; Node B based repeater; Evolved Node B based repeater. IMRs will be installed on
43、 urban/suburban areas and can be co-located or potentially integrated in T-UMTS node Bs. 5.3.1 Common requirements Some of the requirements from TS 125 106 (see Bibliography) are applicable to every IMR solution and among them: spectrum emission mask; Adjacent Channel Leakage power Ratio (ACLR): - 4
44、5 dB for 5 MHz offset; - 50 dB for 10 MHz offset; Error Vector Magnitude (EVM) 17,5 %; peak code domain error -33 dB; spurious emissions. IMR should be able to support at least 1 FDM with several channelization codes in the MSS downlink bandwidth. 13 ETSI ETSI TS 102 442-2 V1.1.1 (2006-11) 5.3.2 Fre
45、quency conversion repeater The frequency conversion repeater receives the satellite signal in FSS frequency bands, amplifies and retransmits in MSS band. It implements frequency conversion from FSS to MSS bands. RN SFFSSFrequencyconversionrepeaterNode BNode BRN CUEGatewayUuIubUuUuFFSSFMSSFMSSIFmod(U
46、u)Figure 5.2: Frequency conversion repeater Frequency conversion repeater is built with: Rx front end including flat panel or reflector antenna sub-system in FSS bands. Amplification chain. Tx front end including omni or sectored antenna. O - demodulation/decoding of the satellite carriers for the p
47、rovision of the Iub protocol messages; - interconnection to the “enabled satellite“ Node B modem via an interface supporting the 3GPP standardized Iub protocol; - A GNSS receiver providing time and frequency reference to the HTI Rx module. A Satellite-enabled modem delivering the W-CDMA carriers. It
48、 is interconnected with the RNC via an equipment called Base Common Functions (BCF) that support the 3GPP standardized Iub protocol and O how this is done is out of the scope of this specification. An S-MBMS Bearer Context, once created, can be in one of two states reflecting the bearer plane resour
49、ce status of the corresponding S-MBMS bearer service. Standby Active Session Stop Session StartNo bearer plane resources required Bearer plane resources required Figure 6.1: S-MBMS Bearer Context State Model “Active“ reflects the state of an S-MBMS Bearer Context in which bearer plane resources are required in the network for the transfer of S-MBMS data. This state is maintained as long as there is a corresponding S-MBMS session ongoing. Standby reflects the state of an S-MBMS Bearer Context in which no bearer plane resources are required
