ETSI TS 101 376-3-23 V3.1.1 (2009-07)

ETSI TS 101 376-3-23 V3.1.1 (2009-07)
Technical Specification

GEO-Mobile Radio Interface Specifications (Release 3);
Third Generation Satellite Packet Radio Service;
Part 3: Network specifications;
Sub-part 23: Radio Access Network;
Overall description - Stage 2;
GMR-1 3G 43.051

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GMR-1 3G 43.051 2 ETSI TS 101 376-3-23 V3.1.1 (2009-07)




Reference
DTS/SES-00309-3-23
Keywords
3G, earth station, GMPRS, GMR, GPRS, GSM,
GSO, MES, mobile, MSS, radio, satellite
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© European Telecommunications Standards Institute 2009.
All rights reserved.

TM TM TM TM
DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered
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TM
3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.
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GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

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GMR-1 3G 43.051 3 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

Contents
Intellectual Property Rights.6
Foreword.6
Introduction .7
1 Scope.9
2 References.9
2.1 Normative references.9
2.2 Informative references.11
3 Symbols and abbreviations.11
3.1 Symbols.11
3.2 Abbreviations.12
4 Satellite GERAN Architecture .13
4.1 Satellite GERAN Reference Architecture .13
4.2 UMTS Architecture applied to Satellite GERAN .13
4.3 Protocol architecture in PS domain .15
4.3.1 General.15
4.3.2 User plane.15
4.3.3 Control plane.15
4.4 Protocol architecture in CS domain.16
4.5 Iur-g interface.16
4.6 Support for MSC/SGSN in pool.16
4.7 CS services for Satellite GERAN Iu-mode .16
4.8 User Equipment Specific Behaviour Information (UESBI) in Satellite GERAN Iu mode .17
5 Radio Interface Protocol Architecture.17
5.1 Protocol Structure when connecting through Iu .17
5.2 Multiplexing Principles .18
5.2.1 Multiplexing of different types of radio access bearers for one MES.18
5.2.2 Multiplexing of user plane data from different core network interfaces.18
5.3 Iu vs A/Gb mode selection.19
5.3.1 Introduction.19
5.3.2 PLMN, cell and mode (re-)selection in Satellite GERAN .19
6 User and Control Plane Protocols .20
6.1 Identifiers in Satellite GERAN.20
6.1.1 IMSI, TMSI and P-TMSI.20
6.1.2 G-RNTI.20
6.1.3 NSAPI, RAB ID and RB ID .20
6.1.4 RB Id, RRB Id, and TFI.21
6.1.5 USF.21
6.1.6 SAI.21
6.1.7 BSC-id.21
6.1.8 LAI for 3G core network .21
6.1.9 RAI for the 3G core network .21
6.1.10 GRA Identity.22
6.1.11 Satellite GERAN internal Cell Identity .22
6.2 Relay.22
6.3 Radio Resource Control (RRC).22
6.3.1 RRC Functions.22
6.3.2 RRC Connection Levels.23
6.3.3 RRC Connection Modes .23
6.3.4 RRC Connection Mobility .24
6.3.4.1 RRC Connection mobility in RRC-Idle mode .24
6.3.4.2 RRC Connection mobility in RRC-Connected mode.24
6.3.5 RRC protocol and messages .24
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GMR-1 3G 43.051 4 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

6.3.6 Support of Radio Bearers in Satellite GERAN.24
6.4 Packet Data Convergence Protocol (PDCP).25
6.4.1 Services provided to upper layers .25
6.4.2 Services expected from RLC layer .25
6.4.3 PDCP Functions.25
6.4.3.1 Transparent Mode.25
6.4.3.2 Non-Transparent Mode.25
6.5 Radio Link Control (RLC) .26
6.5.1 Services provided to upper layer.26
6.5.2 RLC Functions.26
6.5.2.1 Transparent Mode.26
6.5.2.2 Non-Transparent Mode.26
6.5.2.2.1 Acknowledged Mode.27
6.5.2.2.2 Unacknowledged Mode.27
6.6 Medium Access Control (MAC) .27
6.6.1 Services provided to upper layers .27
6.6.2 MAC Functions.27
6.6.2.1 Additional functions for RLC transparent mode.28
6.6.2.2 Additional functions for RLC non-transparent mode.28
6.6.3 Model of MAC .28
6.6.4 MAC operation.30
6.6.4.1 General.30
6.6.4.1.1 TBF Modes.30
6.6.4.2 TBF establishment.31
6.6.4.2.0 General.31
6.6.4.2.1 Uplink resource request from MAC-Idle state .32
6.6.4.2.1.1 Mobile Originated Transmission .32
6.6.4.2.1.2 Mobile Terminated Transmission.32
6.6.4.3 TBF multiplexing and scheduling .32
6.6.4.3.1 Multiplexing of RLC instances on TBFs.32
6.6.4.3.2 Scheduling of TBFs on physical-layer resources .33
6.6.4.4 TBF release.33
6.6.4.5 TBF reallocation.33
6.7 RLC/MAC PDU Formats for different protocol modes .33
6.7.1 Acknowledged RLC mode.33
6.7.2 Unacknowledged RLC mode.33
6.7.3 Transparent RLC mode.34
6.8 Physical Layer (Phy).34
6.8.1 Definitions.34
6.8.2 Services provided to upper layer.34
6.8.2.1 Specific services of the physical layer in the MES .34
6.8.3 Logical Channels.34
6.8.3.1 Traffic channels.34
6.8.3.2 Control channels.35
6.8.3.2.1 Broadcast channels.35
6.8.3.2.2 Common control type channels .35
6.8.3.2.3 Dedicated control channels.35
6.8.3.2.4 Cell Broadcast Channel (CBCH).35
6.8.4 Physical Channels.35
6.8.4.1 DCH - Dedicated Physical CHannel .35
6.8.4.2 PDCH - Packet Data physical CHannel .35
6.8.5 Mapping of logical channels onto physical channels.36
6.8.5.1 DCH.36
6.8.5.2 Void.36
6.8.5.3 PDCH.36
6.8.6 Physical Layer Functions.36
6.8.7 Channel Coding.36
6.8.8 Void.36
6.9 Flexible Layer One (FLO).36
7 Ciphering.36
7.1 Location of ciphering in the Satellite GERAN protocol architecture.37
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GMR-1 3G 43.051 5 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

7.2 Inputs to the ciphering algorithm .37
7.2.1 Ciphering Key.37
7.2.2 Bearer.37
7.2.3 Direction.37
7.2.4 Length.37
7.2.5 Parameter Settings.38
8 Integrity protection.38
8.1 Integrity protection on RRC messages .38
8.2 Integrity protection on RLC/MAC control messages.38
8.3 Calculation of message authentication code.38
9 Mobility Management and Session Management (MM and SM) .38
10 Void.38
Annex A (informative): Radio Access Bearer Realization.39
A.1 Conversational Radio Access Bearer .39
A.2 Streaming, Interactive, Background Radio Access Bearers.39
Annex B (informative): RLC/MAC Header format Convention .40
Annex C (informative): RRC States, MAC States and RRC Connection Mobility.41
C.1 Void.41
C.2 MAC states.41
C.3 Mapping between RRC States and MAC States .41
Annex D (informative): Bibliography.43
History .44

ETSI

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GMR-1 3G 43.051 6 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

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-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/home.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 the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and
Systems (SES).
The contents of the present document are subject to continuing work within TC-SES and may change following formal
TC-SES approval. Should TC-SES modify the contents of the present document it will then be republished by ETSI
with an identifying change of release date and an increase in version number as follows:
Version 3.m.n
where:
• the third digit (n) is incremented when editorial only changes have been incorporated in the specification;
• the second digit (m) is incremented for all other types of changes, i.e. technical enhancements, corrections,
updates, etc.
The present document is part 3, sub-part 23 of a multi-part deliverable covering the GEO-Mobile Radio Interface
Specifications (Release 3); Third Generation Satellite Packet Radio Service, as identified below:
Part 1: "General specifications";
Part 2: "Service specifications";
Part 3: "Network specifications":
Sub-part 1: "Network Functions";
Sub-part 2: "Network Architecture";
Sub-part 3: "Numbering, addressing and identification";
Sub-part 4: "Organization of Subscriber Data";
Sub-part 5: "Technical realization of Supplementary Services";
Sub-part 6: "Location Registration and Position Identification Procedures";
Sub-part 7: "Discontinuous Reception (DRX)";
Sub-part 8: "Support of Dual-Tone Multifrequency Signalling (DTMF)";
Sub-part 9: "Security related Network Functions";
Sub-part 10: "Functions related to Mobile Earth Station (MES) in idle mode";
Sub-part 11: "Technical realization of the Short Message Service (SMS) Point-to-Point (PP)";
Sub-part 12: "Technical realization of the Short Message Service Cell Broadcast (SMSCB)";
ETSI

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GMR-1 3G 43.051 7 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

Sub-part 13: "Technical realization of group 3 facsimile using transparent mode of transmission";
Sub-part 14: "Transmission Planning Aspects of the Speech Service in the GMR-1 system";
Sub-part 15: "Line Identification supplementary service - Stage 2";
Sub-part 16: "Call Barring (CB) supplementary services - Stage 2";
Sub-part 17: "Unstructured Supplementary Service Data (USSD) - Stage 2";
Sub-part 18: "Terminal-to-Terminal Call (TtT)";
Sub-part 19: "Optimal Routing technical realization";
Sub-part 20: "Technical realization of High-Penetration Alerting";
Sub-part 21: "Position Reporting services; Stage 2 Service description";
Sub-part 22: "Overall Description of the GMPRS-1 Radio Interface";
Sub-part 23: "Radio Access Network; Overall description - Stage 2";
Part 4: "Radio interface protocol specifications";
Part 5: "Radio interface physical layer specifications";
Part 6: "Speech coding specifications";
Part 7: "Terminal adaptor specifications".
Introduction
GMR stands for GEO (Geostationary Earth Orbit) Mobile Radio interface, which is used for Mobile Satellite
Services (MSS) utilizing geostationary satellite(s). GMR is derived from the terrestrial digital cellular standard GSM
and supports access to GSM core networks.
The present document is part of the GMR Release 3 specifications. Release 3 specifications are identified in the title
and can also be identified by the version number:
• Release 1 specifications have a GMR 1 prefix in the title and a version number starting with "1" (V1.x.x).
• Release 2 specifications have a GMPRS 1 prefix in the title and a version number starting with "2" (V2.x.x).
• Release 3 specifications have a GMR-1 3G prefix in the title and a version number starting with "3" (V3.x.x).
The GMR release 1 specifications introduce the GEO Mobile Radio interface specifications for circuit mode Mobile
Satellite Services (MSS) utilizing geostationary satellite(s). GMR release 1 is derived from the terrestrial digital cellular
standard GSM (phase 2) and it supports access to GSM core networks.
The GMR release 2 specifications add packet mode services to GMR release 1. The GMR release 2 specifications
introduce the GEO Mobile Packet Radio Service (GMPRS). GMPRS is derived from the terrestrial digital cellular
standard GPRS (included in GSM Phase 2+) and it supports access to GSM/GPRS core networks.
The GMR release 3 specifications evolve packet mode services of GMR release 2 to 3rd generation UMTS compatible
services. The GMR release 3 specifications introduce the GEO-Mobile Radio Third Generation (GMR-1 3G) service.
Where applicable, GMR-1 3G is derived from the terrestrial digital cellular standard 3GPP and it supports access to
3GPP core networks.
Due to the differences between terrestrial and satellite channels, some modifications to the GSM or 3GPP standard are
necessary. Some GSM and 3GPP specifications are directly applicable, whereas others are applicable with
modifications. Similarly, some GSM and 3GPP specifications do not apply, while some GMR specifications have no
corresponding GSM or 3GPP specification.
ETSI

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GMR-1 3G 43.051 8 ETSI TS 101 376-3-23 V3.1.1 (2009-07)

Since GMR is derived from GSM and 3GPP, the organization of the GMR specifications closely follows that of GSM
or 3GPP as appropriate. The GMR numbers have been designed to correspond to the GSM and 3GPP numbering
system. All GMR specifications are allocated a unique GMR number. T
...