ETSI TS 101 376-5-2 V2.3.1 (2008-07)

ETSI TS 101 376-5-2 V2.3.1 (2008-07)
Technical Specification

GEO-Mobile Radio Interface Specifications (Release 2);
General Packet Radio Service;
Part 5: Radio interface physical layer specifications;
Sub-part 2: Multiplexing and Multiple Access;
Stage 2 Service Description;
GMPRS-1 05.002

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GMPRS-1 05.002 2 ETSI TS 101 376-5-2 V2.3.1 (2008-07)




Reference
RTS/SES-00303-5-2
Keywords
GMPRS, GMR, GPRS, GSM, GSO, interface,
MES, mobile, MSS, MUX, radio, satellite, S-PCN,
TDMA
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GMPRS-1 05.002 3 ETSI TS 101 376-5-2 V2.3.1 (2008-07)

Contents
Intellectual Property Rights.6
Foreword.6
Introduction .7
1 Scope.8
2 References.8
2.1 Normative references.8
2.2 Informative references.9
3 Definitions and abbreviations.9
3.1 Definitions.9
3.2 Abbreviations.10
4 General.10
5 Logical channels.10
5.1 General.10
5.2 Traffic channels.10
5.2.1 General.10
5.2.2 Speech traffic channels .10
5.2.3 Data traffic channels .10
5.2.4 Summary of traffic channel characteristics.10
5.2.5 Packet Data Traffic CHannels (PDTCH).11
5.3 Control channels.12
5.3.1 General.12
5.3.2 Broadcast channels.12
5.3.2.1 Frequency Correction CHannel (FCCH).12
5.3.2.2 GPS Broadcast control CHannel (GBCH) .12
5.3.2.3 Broadcast Control CHannel (BCCH).12
5.3.3 Common Control Channel (CCCH).12
5.3.4 Dedicated control channels.12
5.3.5 Cell Broadcast CHannel (CBCH) .12
5.3.6 Packet Common Control CHannels (PCCCH) .12
5.3.7 Packet dedicated control channels .12
6 The physical resource.13
6.1 General.13
6.2 Radio frequency channels.13
6.2.1 Spot beam allocation.13
6.2.2 Downlink and uplink .13
6.3 Timeslots and TDMA frames.13
6.3.1 General.13
6.3.2 Timeslot number.13
6.3.3 TDMA frame number .13
7 Bursts.13
7.1 General.13
7.2 Timing.14
7.2.1 Half-symbol period.14
7.2.2 Useful duration.14
7.2.3 Guard period.14
7.3 Multiple unique word patterns in bursts .14
7.4 Types of bursts .14
7.4.1 BACH burst .14
7.4.2 BCCH burst .14
7.4.3 CICH burst.15
7.4.4 DC2 burst.15
ETSI

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GMPRS-1 05.002 4 ETSI TS 101 376-5-2 V2.3.1 (2008-07)

7.4.5 DC6 burst.15
7.4.6 DKAB bursts.15
7.4.7 FCCH burst.15
7.4.8 NT3 burst.15
7.4.8.1 NT3 burst for encoded speech.15
7.4.8.2 NT3 burst for FACCH .15
7.4.9 NT6 burst.15
7.4.10 NT9 burst.15
7.4.11 RACH burst .15
7.4.12 SDCCH burst.15
7.4.13 Packet Normal Bursts (PNB).15
7.4.13.1 Burst header.17
7.4.13.1.1 Guard bits.17
7.4.13.1.2 Unique Word (UW).17
7.4.13.1.3 PUblic Information (PUI) field.17
7.4.13.1.4 Transition symbols.17
7.4.13.2 Encoded PRivate Information (PRI) .18
7.4.13.3 Formats of packet normal burst.18
7.4.13.3.1 Void.18
7.4.13.3.2 PNB(4,3).18
7.4.13.3.3 PNB(5,3).18
7.4.13.3.4 PNB(1,6).19
7.4.13.3.5 PNB(2,6).19
7.4.13.3.6 LDPC Coded PNB2(5,12)/Downlink .20
7.4.13.3.7 LDPC Coded PNB2(5,12)/Uplink.21
7.4.13.3.8 LDPC Coded PNB2(5,3)/Downlink .21
7.4.13.3.9 LDPC Coded PNB2(5,3)/Uplink.22
7.4.14 Packet Access Burst (PAB) .23
7.4.15 Packet Keep-Alive Burst (PKAB) .23
8 Logical-physical channel mapping.24
8.1 General.24
8.1.1 Frequency-domain description.24
8.1.2 Time-domain description.24
8.1.2.1 Physical channels.24
8.1.2.2 Logical channels.24
8.2 Physical Channel (PC) types and names .24
8.3 Logical channel parameters.24
8.4 Permitted channel configurations .25
8.5 Logical channel frame sequencing concepts .25
8.5.1 Simple frame sequence .25
8.5.1.1 Simple frame sequence subchannels .25
8.5.2 Simple paired-frame sequence.25
8.5.2.1 Simple paired-frame sequence subchannels.25
8.5.3 Configured paired-frame sequence .25
8.5.3.1 CBCH configuration.25
8.5.4 Statistically multiplexed paired-frame sequence .25
8.5.4.1 Pool size.25
8.5.4.2 Statistically multiplexed paired-frame sequence subchannels .25
8.5.4.3 Example using SDCCH.25
8.5.5 System information cycle sequencing.25
8.5.5.1 Physical-Channel-Relative Timeslot Number (PCRTN) .25
8.5.5.2 System-Information-Relative Frame Number (SIRFN).26
8.5.5.3 Graphical representation of system information cycle timeslots.26
8.6 Mapping of logical channels to BCCH/CCCH.26
8.6.1 Fixed reserved-slot logical channels.26
8.6.1.1 FCCH.26
8.6.1.2 CICH.26
8.6.1.3 BCCH.26
8.6.2 Optional reserved-slot logical channels .26
8.6.2.1 PCH.26
8.6.2.2 BACH .26
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GMPRS-1 05.002 5 ETSI TS 101 376-5-2 V2.3.1 (2008-07)

8.6.3 Unreserved-slot logical channels .26
8.7 Mapping of logical channels to normal CCCH .26
8.8 Mapping in time of packet logical channels onto physical channels.27
8.8.1 General.27
8.8.2 Mapping of the uplink channels.27
8.8.2.1 Mapping of uplink packet traffic channel (PDTCH/U) and PACCH/U.27
8.8.2.2 Mapping of the packet timing advance control channel (PTCCH/U) .28
8.8.2.3 Mapping of the uplink PCCCH, i.e. PRACH.28
8.8.3 Mapping of the downlink channels.29
8.8.3.1 Mapping of the (PDTCH/D) and PACCH/D .29
8.8.3.2 Mapping of the PTCCH/D .29
8.8.3.3 Mapping of the PBCCH .29
8.8.3.4 Mapping of the PCCCH .29
8.8.4 Mapping of PBCCH data.29
8.8.5 Permitted combination of packet data channels.29
8.9 Multislot configurations.29
8.9.1 Multislot configurations for circuit switched connections.30
8.9.2 Multislot configurations for packet switched connections.30
9 Operation of channels.30
9.1 PC6d and PC12u pairing .30
9.2 Bidirectional channel timeslot assignments.30
9.3 GBCH.30
9.4 DKABs.30
9.5 FCCH and CICH .30
9.6 TACCH/2.30
9.7 MES monitoring of paging and alerting groups .30
9.7.1 Determination of assigned CCCH .30
9.7.2 Determination of assigned paging group .31
9.7.3 Determination of alerting group.31
9.7.4 Determination of PCCCH_GROUP and PAGING_GROUP for MES in GMPRS attached mode .31
9.8 MES selection of PC12U .31
9.9 SDCCH vs. CBCH .31
9.10 MES monitors paired CCCH for AGCH.31
9.11 Additional air interface constraints.31
10 BCCH parameters.31
10.1 Types of BCCH parameters.31
10.2 Information used to obtain synchronization .31
10.3 Channel meta-information.32
10.4 Beam-configurable multichannel information.32
10.5 Information specific to one instance of a channel .32
Annex A (normative): Multislot capability.33
A.1 MES classes for multislot capability.33
A.2 Constraints imposed by the service selected .34
A.3 Network requirements for supporting MES multislot classes.34
Annex B (informative): Asymmetrical pairing of PDCH/D(2,m) with PDCH/U(1,m).35
Annex C (normative): GMPRS Terminal Types.36
Annex D (informative): Bibliography.39
History .40

ETSI

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GMPRS-1 05.002 6 ETSI TS 101 376-5-2 V2.3.1 (2008-07)

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 2.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 5, sub-part 2 of a multi-part deliverable covering the GEO-Mobile Radio Interface
Specifications (Release 2) General Packet Radio Service, as identified below:
Part 1: "General specifications";
Part 2: "Service specifications";
Part 3: "Network specifications";
Part 4: "Radio interface protocol specifications";
Part 5: "Radio interface physical layer specifications":
Sub-part 1: "Physical Layer on the Radio Path: General Description";
Sub-part 2: "Multiplexing and Multiple Access; Stage 2 Service Description";
Sub-part 3: "Channel Coding";
Sub-part 4: "Modulation";
Sub-part 5: "Radio Transmission and Reception";
Sub-part 6: "Radio Subsystem Link Control";
Sub-part 7: "Radio Subsystem Synchronization";
Part 6: "Speech coding specifications";
Part 7: "Terminal adaptor specifications".
ETSI

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GMPRS-1 05.002 7 ETSI TS 101 376-5-2 V2.3.1 (2008-07
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