ETSI TS 101 376-5-3 V3.1.1 (2009-07)

GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 5: Radio interface physical layer specifications; Sub-part 3: Channel Coding; GMR-1 3G 45.003

RTS/SES-00309-5-3

General Information

• Status: Published
• Publication Date: 06-Jul-2009
• Technical Committee: SES MSS - SES WG on Mobile Satellite Systems
• Current Stage: 12 - Completion
• Due Date: 22-Jun-2009
• Completion Date: 07-Jul-2009

Standards Content (Sample)

Technical Specification
GEO-Mobile Radio Interface Specifications (Release 3)
Third Generation Satellite Packet Radio Service;
Part 5: Radio interface physical layer specifications;
Sub part 3: Channel Coding;
GMR-1 3G 45.003
GMR-1 3G 45.003 2 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

Reference
RTS/SES-00309-5-3
Keywords
3G, coding, GMPRS, GMR, GPRS, GSM, GSO,
interface, MES, mobile, MSS, radio, satellite
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ETSI
GMR-1 3G 45.003 3 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

Contents
Intellectual Property Rights . 11
Foreword . 11
Introduction . 12
1 Scope . 14
2 References . 14
2.1 Normative references . 14
2.2 Informative references . 15
3 Definitions and abbreviations . 15
3.1 Definitions . 15
3.2 Abbreviations . 15
4 General . 16
4.1 General organization . 16
4.2 Naming convention . 16
4.3 Parity checking . 16
4.4 Convolutional coding . 17
4.4.1 Convolutional encoding (all channels except TCH3) . 17
4.4.1.1 Rate 1/2 convolutional code . 17
4.4.1.2 Rate 1/4 convolutional code . 17
4.4.1.3 Rate 1/3 convolutional code . 17
4.4.1.4 Rate 1/5 convolutional code . 17
4.4.1.5 Rate 1/2 convolutional code (constraint length 9) . 17
4.4.2 Convolutional encoding for TCH3 . 17
4.4.3 Viterbi decoder for TCH3 . 17
4.4.4 Convolutional encoding for Extended PUI . 18
4.4.5 Tail Biting Rate 1/2 convolutional code, constraint length 5 . 18
4.4.6 Tail Biting Rate 1/2 convolutional code, constraint length 9 . 18
4.4.7 Tail Biting Rate 1/3 convolutional code, constraint length 5 . 19
4.4.8 Rate ¼ Constraint length 9 Convolutional Encoder . 19
4.4.9 Rate 1/3 Constraint length 9 Convolutional Encoder . 20
4.5 Puncturing and repetition . 20
4.6 Golay encoding . 24
4.7 Reed-Solomon encoding . 25
4.7.1 Encoder . 25
4.7.2 Galois field arithmetics . 25
4.7.3 Encoder feedback register operation . 25
4.8 Interleaving. 25
4.8.1 Intraburst interleaving . 25
4.8.2 Interburst interleaving . 25
4.9 Scrambling . 25
4.10 LDPC Codes . 25
4.11 Turbo codes . 29
4.11.1 Turbo encoder . 29
4.11.2 Turbo Code Termination . 30
4.11.3 Turbo code internal interleaver . 30
4.11.4 Turbo Code Puncturing . 32
5 Traffic channels . 35
5.1 Traffic channel-3 (TCH3). 35
5.1.1 Channel coding . 35
5.1.2 Interleaving . 35
5.1.3 Scrambling, multiplexing, and encryption . 36
5.2 Traffic channel-6 (TCH6). 36
5.2.1 Channel coding . 36
5.2.1.1 Coding for 2,4 kbps fax . 36
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GMR-1 3G 45.003 4 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

5.2.1.2 Coding for 2,4 kbps data . 36
5.2.1.3 Coding for 4,8 kbps fax/data . 36
5.2.2 Interleaving . 36
5.2.3 Scrambling, multiplexing, and encryption . 36
5.3 Traffic channel-9 (TCH9). 36
5.3.1 Channel coding . 36
5.3.1.1 Coding for 2,4 kbps fax . 36
5.3.1.2 Coding for 4,8 kbps fax . 36
5.3.1.3 Coding for 9,6 kbps fax/data . 36
5.3.2 Interleaving . 36
5.3.3 Scrambling, multiplexing, and encryption . 36
6 Control channels . 37
6.1 Broadcast Control CHannel (BCCH) . 37
6.1.1 Channel coding . 37
6.1.2 Interleaving . 37
6.1.3 Scrambling and multiplexing . 37
6.1a Broadcast Control Channel over DC12 burst . 37
6.1a.1 Channel coding . 37
6.1a.2 Interleaving . 37
6.1a.3 Scrambling and multiplexing . 37
6.2 Paging CHannel (PCH) . 37
6.2.1 Channel coding . 37
6.2.2 Interleaving . 37
6.2.3 Scrambling and multiplexing . 37
6.2a Paging Channel over DC12 burst . 38
6.2a.1 Channel coding . 38
6.2a.2 Interleaving . 38
6.2a.3 Scrambling and multiplexing . 38
6.3 Access Grant CHannel (AGCH) . 38
6.3.1 Channel coding . 38
6.3.2 Interleaving . 38
6.3a Access Grant Channel over DC12 burst . 38
6.3a.1 Channel coding . 38
6.3a.2 Interleaving . 38
6.3a.3 Scrambling and multiplexing . 38
6.4 Broadcast Alerting CHannel (BACH) . 38
6.4.1 Channel coding . 39
6.5 Random Access CHannel (RACH) . 39
6.5.1 Channel coding . 39
6.5.2 Interleaving . 39
6.5.3 Scrambling and multiplexing . 39
6.5a Random Access Channel3 (RACH3) . 39
6.5a.1 Channel coding . 39
6.5a.2 Interleaving . 39
6.5a.3 Scrambling and multiplexing . 39
6.6 Cell Broadcast CHannel (CBCH) . 39
6.6.1 Channel coding . 39
6.6.2 Interleaving . 39
6.7 Standalone Dedicated Control CHannel (SDCCH) . 40
6.7.1 Channel coding . 40
6.7.2 Interleaving . 40
6.7.3 Scrambling, multiplexing, and encryption . 40
6.8 Slow Associated Control CHannel (SACCH) . 40
6.8.1 Channel coding . 40
6.8.2 Interleaving . 40
6.9 Fast Associated Control CHannel-3 (FACCH3) . 40
6.9.1 Channel coding . 40
6.9.2 Interleaving . 40
6.9.3 Scrambling, multiplexing, and encryption . 40
6.10 Fast Associated Control CHannel-6 (FACCH6) . 40
6.10.1 Channel coding . 40
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GMR-1 3G 45.003 5 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

6.10.2 Interleaving . 41
6.10.3 Scrambling, multiplexing, and encryption . 41
6.11 Fast Associated Control CHannel-9 (FACCH9) . 41
6.11.1 Channel coding . 41
6.11.2 Interleaving . 41
6.11.3 Scrambling, multiplexing, and encryption . 41
6.12 Terminal-to-terminal Associated Control CHannel (TACCH). 41
6.12.1 TACCH channel coding . 41
6.12.2 Interleaving . 41
6.12.3 Scrambling and multiplexing . 41
6.12.4 PHYsical (PHY) header for TACCH . 41
6.13 GPS Broadcast CHannel (GBCH) . 41
6.13.1 Channel coding . 41
6.13.2 Interleaving . 42
6.13.3 Scrambling and multiplexing . 42
6.13a GPS Broadcast Channel3 (GBCH3) . 42
6.13a.1 Channel coding . 42
6.13a.2 Interleaving . 42
6.13a.3 Scrambling and multiplexing . 42
6.14 ULMAP . 42
6.14.1 ULMAP for PNB3 (5,3)/downlink . 42
6.14.1.1 Channel coding . 42
6.14.1.2 Interleaving . 42
6.14.1.3 Scrambling and multiplexing . 42
6.14.1.4 Repetition . 43
6.14.2 ULMAP for PNB3(5,12)/downlink . 43
6.14.2.1 Channel coding . 43
6.14.2.2 Interleaving . 43
6.14.2.3 Scrambling and multiplexing . 43
6.14.2.4 Repetition . 43
6.14.3 ULMAP for PNB3 (10,3) . 43
6.14.3.1 Channel coding . 43
6.14.3.2 Interleaving . 43
6.14.3.3 Scrambling and multiplexing . 43
6.14.3.4 Repetition . 44
7 Logical channel multiplexing . 44
7.1 SACCH multiplexing . 44
7.2 Status field . 44
7.2.1 Power control field. 44
7.2.1.1 DCH (Dedicated Channel) Power control field. 44
7.2.2 Comfort noise field . 45
7.2.3 Link Quality Indicator field . 45
7.3 Status field with NTN bursts . 45
7.3.1 Status field with NT6 and NT9 bursts . 45
7.3.2 Status field with NT3 bursts . 45
7.3.2.1 Status field with NT3 bursts for encoded speech . 45
7.3.2.2 Status field with NT3 bursts for FACCH . 45
7.3.3 Status field with Keep-Alive Bursts (KAB) . 45
7.4 Status field with DCH bursts . 45
7.4.1 Status field with PNB3(1,3), PNB3(1,6), and PNB3(1,8). 45
7.4.2 Status field with KAB3(1,3), . 46
7.4.3 Status field with KAB3(1,6) . 46
7.4.4 Status field with KAB3(1,8) . 46
8 Encryption . 46
9 Packet Switched Channels. 46
9.1 Packet Data Traffic Channels . 46
9.1.1 PUblic Information (PUI) . 47
9.1.1a Extended PUI (A/Gb mode only) . 47
9.1.1b PUblic Information (PUI3) . 47
9.1.1b.1 PUI3 for PNB3(5,3)/downlink and PNB3 (5,12)/downlink . 47
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GMR-1 3G 45.003 6 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

9.1.1b.1.1 Channel coding . 47
9.1.1b.1.2 Interleaving . 47
9.1.1b.1.3 Scrambling and multiplexing . 47
9.1.1b.1.4 Repetition . 47
9.1.1b.2 PUI3 for PNB3(10,3) . 47
9.1.1b.2.1 Channel coding . 48
9.1.1b.2.2 Interleaving . 48
9.1.1b.2.3 Scrambling and multiplexing . 48
9.1.1b.2.4 Repetition . 48
9.1.1b.3 PUI3 for PNB3(2,6) . 48
9.1.1b.3.1 Channel coding . 48
9.1.1b.3.2 Interleaving . 48
9.1.1b.3.3 Scrambling and multiplexing . 48
9.1.1b.3.4 Repetition . 48
9.1.2 Void . 49
9.1.3 Packet Normal Burst PNB(4,3). 49
9.1.3.1 Rate 1/2 convolutional coding. 49
9.1.3.2 Rate 5/8 convolutional coding. 49
9.1.3.3 Rate 3/4 convolutional coding. 49
9.1.3.4 Interleaving . 50
9.1.3.5 Scrambling, multiplexing, and encryption . 50
9.1.4 Packet Normal Burst PNB(5,3). 50
9.1.4.1 Rate 1/2 convolutional coding. 50
9.1.4.2 Rate 5/8 convolutional coding. 50
9.1.4.3 Rate 3/4 convolutional coding. 51
9.1.4.4 Interleaving . 51
9.1.4.5 Scrambling, multiplexing, and encryption . 51
9.1.5 Void . 51
9.1.6 Packet Normal Burst PNB(1,6). 51
9.1.6.1 Rate 3/5 convolutional coding. 51
9.1.6.2 Rate 7/10 convolutional coding. 52
9.1.6.3 Rate 4/5 convolutional coding. 52
9.1.6.4 Interleaving . 52
9.1.6.5 Scrambling, multiplexing, and encryption . 52
9.1.7 Packet Normal Burst PNB(2,6). 52
9.1.7.1 Rate 3/5 convolutional coding. 52
9.1.7.2 Rate 7/10 convolutional coding. 53
9.1.7.3 Rate 4/5 convolutional coding. 53
9.1.7.4 Interleaving . 53
9.1.7.5 Scrambling, multiplexing, and encryption . 53
9.1.8 Packet Normal Burst PNB2(5,12) . 53
9.1.8.1 π/4QPSK Rate 0,497 LDPC Coding . 54
9.1.8.2 π/4QPSK Rate 0,508 LDPC Coding . 54
9.1.8.3 π/4QPSK Rate 0,667 LDPC Coding . 54
9.1.8.4 π/4QPSK Rate 0,681 LDPC Coding . 54
9.1.8.5 π/4QPSK Rate 0,800 LDPC Coding . 55
9.1.8.6 π/4QPSK Rate 0,818 LDPC Coding . 55
9.1.8.7 π/4QPSK Rate 0,899 LDPC Coding . 55
9.1.8.8 π/4QPSK Rate 0,919 LDPC Coding . 55
9.1.8.9 16APSK Rate 0,667 LDPC Coding . 56
9.1.8.10 16APSK Rate 0,681 LDPC Coding . 56
9.1.8.11 16APSK Rate 0,800 LDPC Coding . 56
9.1.8.12 16APSK Rate 0,818 LDPC Coding . 56
9.1.8.13 16APSK Rate 0,900 LDPC Coding . 57
9.1.8.14 32APSK Rate 0,765 LDPC Coding . 57
9.1.8.15 32APSK Rate 0,818 LDPC Coding . 57
9.1.8.16 Interleaving . 57
9.1.8.17 Scrambling, multiplexing, and encryption . 57
9.1.9 LDPC Coded Packet Normal Burst PNB2(5,3) . 57
9.1.9.1 π/4QPSK Rate 0,509 LDPC Coding . 58
9.1.9.2 π/4QPSK Rate 0,660 LDPC Coding . 58
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GMR-1 3G 45.003 7 ETSI TS 101 376-5-3 V3.1.1 (2009-07)

9.1.9.3 π/4QPSK Rate 0,793 LDPC Coding . 58
9.1.9.4 π/4QPSK Rate 0,894 LDPC Coding . 58
9.1.9.5 16APSK Rate 0,664 LDPC Coding . 59
9.1.9.6 16APSK Rate 0,797 LDPC Coding . 59
9.1.9.7 16APSK Rate 0,898 LDPC Coding . 59
9.1.9.8 32APSK Rate 0,748 LDPC Coding . 59
9.1.9.8 32APSK Rate 0,798 LDPC Coding . 60
9.1.9.9 Interleaving . 60
9.1.9.10 Scrambling, multiplexing, and encryption . 60
9.1.10 Packet Normal Burst PNB3(1,3) . 60
9.1.10.1 PNB3(1,3) 2,45 kbps speech . 60
9.1.10.1.1 Channel coding . 60
9.1.10.1.2 Interleaving. . 61
9.1.10.1.3 Scrambling . 61
9.1.10.2 PNB3(1,3) 2,6 kbps data over DCH ( Dedicated Channel) . 61
9.1.10.2.1 Channel coding . 61
9.1.10.2.2 Interleaving. . 61
9.1.10.2.3 Scrambling. . 61
9.1.10.3 PNB3(1,3) 4 kbps Speech . 61
9.1.10.3.1 Channel coding . 61
9.1.10.3.2 Interleaving. . 62
9.1.10.3.3 Scrambling. . 62
9.1.10.4 PNB3(1,3) 4 kbps data over DCH (Dedicated Channel) . 62
9.1.10.4.1 Channel coding . 62
9.1.10.4.2 Interleaving. . 62
9.1.10.4.3 Scrambling. . 62
9.1.11 Packet Normal Burst PNB3(1,6) . 62
9.1.11.1 PNB3(1,6) 2,45 kbps Speech . 62
9.1.11.1.1 Channel coding . 63
9.1.11.1.2 Interleaving. . 63
9.1.11.1.3 Scrambling. . 63
9.1.11.2 PNB3(1,6) 2,6 kbps Data over DCH (Dedicated channel) .
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