ETSI TS 101 376-4-12 V3.2.1 (2011-02)

GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 4: Radio interface protocol specifications; Sub-part 12: Mobile Earth Station (MES) - Base Station System (BSS) interface; Radio Link Control/Medium Access Control (RLC/MAC) protocol; GMR-1 3G 44.060

RTS/SES-00315-4-12

General Information

• Status: Published
• Publication Date: 21-Feb-2011
• Technical Committee: SES MSS - SES WG on Mobile Satellite Systems
• Current Stage: 12 - Completion
• Due Date: 09-Feb-2011
• Completion Date: 22-Feb-2011

Standards Content (Sample)

Technical Specification
GEO-Mobile Radio Interface Specifications (Release 3);
Third Generation Satellite Packet Radio Service;
Part 4: Radio interface protocol specifications;
Sub-part 12: Mobile Earth Station (MES) -
Base Station System (BSS) interface;
Radio Link Control/Medium Access Control (RLC/MAC) protocol;
GMR-1 3G 44.060
GMR-1 3G 44.060 2 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

Reference
RTS/SES-00315-4-12
Keywords
3G, GMPRS, GMR, GPRS, GSM, GSO, MES,
mobile, MSS, radio, satellite, S-PCN
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ETSI
GMR-1 3G 44.060 3 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

Contents
Intellectual Property Rights . 11
Foreword . 11
Introduction . 12
1 Scope . 14
2 References . 15
2.1 Normative references . 15
2.2 Informative references . 17
3 Definitions and abbreviations . 17
3.1 Definitions . 17
3.2 Abbreviations . 19
4 Layered overview of radio interface. 19
4.1 Layer services . 20
4.2 Layer functions . 20
4.3 Service primitives . 21
4.4 Services required from lower layers . 21
5 Introduction to the Medium Access Control (MAC) procedures . 21
5.1 General . 21
5.2 Multiplexing principles . 21
5.2.1 Temporary Block Flow (TBF) . 21
5.2.2 Temporary Flow Identity (TFI) . 22
5.2.3 Uplink state flag . 22
5.2.4 Medium access modes . 22
5.2.4a Multiplexing of GMPRS and future MESs . 23
5.3 Packet idle mode . 23
5.4 Packet transfer mode . 23
5.5 General procedures in packet idle and packet transfer modes . 23
5.5.1 Mobile earth station side . 23
5.5.1.1 Cell reselection . 23
5.5.1.1a Network Assisted Cell Change . 24
5.5.1.1a.1 Neighbour Cell System Information Distribution . 24
5.5.1.1a.2 CCN Mode . 24
5.5.1.2 System Information (SI) on PBCCH . 24
5.5.1.3 System Information (SI) on BCCH . 24
5.5.1.3.1 Supervision of BCCH_CHANGE_MARK and update of BCCH information . 24
5.5.1.3.2 GPRS SI reception failure . 24
5.5.1.4 Acquisition of system information on the broadcast channel . 24
5.5.1.4.1 Suspension of operation to receive system information . 24
5.5.1.4.2 Request for acquisition of system information . 24
5.5.1.5 Discontinuous reception (DRX) . 24
5.5.1.6 Page mode procedures on PCCCH . 25
5.5.1.7 Frequency parameters . 25
5.5.2 Network side . 25
5.5.2.1 System Information broadcasting . 25
5.5.2.1.1 System information on PBCCH . 25
5.5.2.1.2 System information on BCCH . 25
5.5.2.1.3 System information on PACCH (and other logical channels) . 25
5.5.2.1.4 Consistent sets of system information messages . 25
5.5.2.2 Paging . 25
5.6 Measurement reports . 26
5.6.0 General . 26
5.6.1 Network Control (NC) measurement reporting . 26
5.6.2 Void . 26
5.6.3 Additional measurement and reporting parameters . 26
ETSI
GMR-1 3G 44.060 4 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

5.6.3.1 Deriving the 3G Neighbour Cell list from the 3G Neighbour Cell description . 27
5.6.3.2 Deriving BA(GPRS) and the GSM Neighbour Cell list . 27
5.6.3.3 Deriving the Neighbour Cell list from the GSM Neighbour Cell list and the 3G Neighbour Cell
list . 27
5.6.3.4 GPRS Real Time Differences . 27
5.6.3.5 GPRS Report Priority Descriptions . 27
5.6.3.6 GPRS Measurement Parameters and GPRS 3G Measurement Parameters . 27
5.6.3.7 The GPRS 3G Cell Reselection list . 28
6 Paging procedures (A/Gb mode only) . . 28
6.1 Paging procedure for RR connection establishment . 28
6.1.1 Paging initiation using paging subchannel on CCCH . 28
6.1.2 Paging initiation using paging subchannel on PCCCH . 28
6.1.3 Paging initiation using PACCH . 28
6.1.4 Paging response . 28
6.2 Paging procedure for downlink packet transfer . 29
6.2.1 Paging procedure using paging subchannel on CCCH . 29
6.2.2 Paging using paging subchannel on PCCCH . 29
6.2.3 Paging response to a page on CCCH . 29
7 Medium Access Control (MAC) procedures on PCCCH . 29
7.0a Support of multiple TBF procedures . 30
7.1 TBF establishment initiated by the mobile earth station on PCCCH . 30
7.1.1 Permission to access the network . 30
7.1.2 Initiation of a TBF establishment . 31
7.1.2.1 Initiation of the packet access procedure . 31
7.1.2.1.1 Access persistence control on PRACH . 32
7.1.2.1.2 Handling of T3202 expiry . 33
7.1.2.2 Packet assignment procedure . 33
7.1.2.2.1 On receipt of a PACKET CHANNEL REQUEST or PACKET CHANNEL REQ TYPE 2
message . 33
7.1.2.2.2 Void . 34
7.1.2.2.3 Void . 34
7.1.2.2.4 Packet access reject procedure . 34
7.1.2.3 One phase packet access completion. 34
7.1.2.4 Timing and frequency correction . 35
7.1.3 Packet Resource Request Procedure (Iu mode only) . 35
7.1.3.1 Initiation of the Packet resource request procedure . 35
7.1.3.2 On receipt of a PACKET RESOURCE REQUEST message . 35
7.1.3.3 Completion of Packet resource request procedure . 35
7.1.4 Initiation of TBF Establishment on CCCH . 36
7.1.5 Abnormal cases . 36
7.2 TBF establishment initiated by the network on CCCH (A/Gb mode only) . 37
7.2.1 Entering the packet transfer mode . 37
7.2.1.1 Packet downlink assignment procedure . 37
7.2.1.2 Packet downlink assignment procedure completion . 38
7.2.1.3 Void. 38
7.2.2 Abnormal cases . 38
7.3 Procedure for measurement report sending in packet idle mode . 38
7.4 Cell change order procedures in packet idle mode . 39
7.4.1 Cell change order procedure initiated on PCCCH . 39
7.4.2 Cell change order procedure initiated on CCCH . 39
7.5 Measurement order procedures in packet idle mode . 39
7.6 Void . 39
7.7 Void . 39
7.8 TBF establishment on PACCH by network . 39
7.9 GMPRS Resume procedure on PCCCH (A/Gb mode only) . 39
7.9.1 Initiation of GMPRS resume procedure . 39
7.9.2 Completion of GMPRS resume procedure . 40
7.9.3 Abnormal cases . 40
8 Medium access control (MAC) procedures in packet transfer mode . 40
8.1 Transfer of RLC data blocks . 40
ETSI
GMR-1 3G 44.060 5 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

8.1.1 Uplink RLC data block transfer . 40
8.1.1.1 Dynamic allocation uplink RLC data block transfer . 41
8.1.1.1.1 PACCH operation (A/Gb mode only) . 41
8.1.1.1.1a PDCH3 PACCH operation (Iu mode only) . 42
8.1.1.1.2 Resource reallocation for uplink TBF . 42
8.1.1.1.3 Establishment of downlink TBF . 44
8.1.1.2 Uplink PDCH(5,3) and PDCH(5,12) multiplexing . 45
8.1.1.3 Void. 45
8.1.1.4 Network initiated release of uplink TBF . 45
8.1.1.5 Abnormal cases . 46
8.1.2 Downlink RLC data block transfer . 46
8.1.2.1 Downlink RLC data block transfer . 47
8.1.2.1.1 Abnormal cases . 47
8.1.2.2 Polling for packet downlink ACK/NACK . 48
8.1.2.3 Downlink PDCH(5,3) and PDCH(5,12) mutiplexing . 48
8.1.2.4 Resource reassignment for downlink . 48
8.1.2.4a Establishment of downlink TBF after downlink TBF release . 49
8.1.2.4a.1 Abnormal cases . 49
8.1.2.5 Establishment of uplink TBF . 50
8.1.2.5.1 Abnormal cases (A/Gb mode) . 52
8.1.2.5.1a Abnormal cases (Iu mode) . 52
8.1.2.6 Void. 53
8.1.2.7 Void. 53
8.1.2.8 Network initiated abnormal release of downlink TBF . 53
8.1.2.9 Network initiated release of downlink TBF . 53
8.1.3 Void . 54
8.1.4 Multiplexing of control and data messages . 54
8.1.5 Multiplexing multiple TBFs on the same burst (Iu mode only) . 54
8.2 Packet PDCH release (Iu mode only) . 55
8.3 Procedure for measurement report sending in Packet Transfer mode (Iu mode only) . 55
8.4 Network controlled cell reselection procedure (Iu mode only) . 55
8.4.1 Network controlled cell reselection completion . 56
8.4.2 Abnormal cases . 56
8.5 Measurement order procedures in packet transfer mode (Iu mode only) . 57
8.6 Packet control acknowledgement . 57
8.7 Abnormal cases . 57
8.7.1 Abnormal release with return to CCCH or PCCCH . 57
8.7.2 Abnormal release with random access . 57
8.7.3 Abnormal release with system information . 57
8.8 Packet link quality reporting in packet transfer mode (A/Gb mode only) . 58
8.9 Coding rate change procedure in packet transfer mode . 58
8.9.1 Downlink TBF coding rate change procedure . 58
8.9.2 Uplink TBF coding rate change procedure . 58
9 Radio Link Control (RLC) procedures in packet transfer mode . 58
9.1 Procedures and parameters for peer-to-peer operation . 59
9.1.1 Send state variable V(S) . 59
9.1.1a Control send state variable V(CS) . 59
9.1.2 Acknowledge state variable V(A) . 59
9.1.3 Acknowledge state array V(B). 59
9.1.3.1 Acknowledge state array V(B) for GMPRS . 59
9.1.3.2 Void. 60
9.1.4 Block Sequence Number BSN . 60
9.1.4.1 Block Sequence Number BSN for GPRS TBF . 60
9.1.4.2 Void. 60
9.1.4a Void . 60
9.1.5 Receive state variable V(R) . 60
9.1.6 Receive window state variable V(Q) . 60
9.1.7 Receive state array V(N) . 61
9.1.7.1 Receive state array V(N) in GMPRS TBF . 61
9.1.7.2 Void. 61
9.1.8 Starting Sequence Number (SSN) and Received Block Bitmap (RBB) . 61
ETSI
GMR-1 3G 44.060 6 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

9.1.8.1 Starting Sequence Number (SSN) and Received Block Bitmap (RBB) in GMPRS TBF . 61
9.1.8.1.1 Generation of the bitmap . 61
9.1.8.1.2 Interpretation of the bitmap . 62
9.1.8.2 Void. 62
9.1.9 Window size . 62
9.1.9a Filler octets . 62
9.1.10 Compression . 62
9.1.11 Segmentation of upper layer PDUs into RLC data units . 64
9.1.12 Re-assembly of upper layer PDUs from RLC data units . 65
9.1.12a Void . 65
9.1.12b Void . 65
9.1.12c Dummy Data Block (Iu mode only) . 65
9.1.13 Void . 66
9.2 Operation during RLC/MAC control message transfer . 66
9.3 Operation during RLC data block transfer . 66
9.3.1 Void . 66
9.3.2 Acknowledged mode operation . 66
9.3.2.1 Additional functionality in acknowledged mode on PDCH3 (Iu mode only) . 66
9.3.2.2 Establishment of temporary block flow . 66
9.3.2.3 Operation of uplink temporary block flow . 67
9.3.2.4 Release of uplink temporary block flow . 67
9.3.2.5 Operation of downlink temporary block flow . 68
9.3.2.6 Release of downlink temporary block flow . 69
9.3.3 Unacknowledged mode operation . 69
9.3.3.1 Establishment of temporary block flow . 69
9.3.3.2 Operation of uplink temporary block flow . 69
9.3.3.3 Release of uplink temporary block flow . 70
9.3.3.4 Operation of downlink temporary block flow . 71
9.3.3.5 Release of downlink temporary block flow . 71
9.4 Abnormal release cases . 71
9.4.1 Abnormal release with random access . 71
9.4.2 Abnormal release with spotbeam reselection . 72
10 RLC/MAC block structure . 72
10.0a PNB(m,n) bursts - A/Gb mode . 72
10.0b PNB2(m,n) bursts - A/Gb mode . 72
10.0c PNB3(m,n) bursts - Iu mode . 73
10.0d PNB(1,6) bursts - Iu Mode . 74
10.1 Radio block structure . 75
10.2 Public information bits . 78
10.2.1 Downlink PUI for PDCH (4,n) and PDCH (5,n) and PDCH2(5,3) . 81
10.2.1a Downlink PUI for PDCH3(5,3) . 82
10.2.1b Downlink PUI for PDCH3(5,12) . 82
10.2.1c Downlink PUI for PDCH3(10,3) . 83
10.2.2 Downlink Extended PUI for PDCH2(5,12) . 84
10.2.3 Uplink PUI for PDCH (4,3), PDCH (5,n), PDCH2(5,n) and PDCH3(5,n) . 85
10.2.4 Downlink PUI for PDCH (2,6) . 85
10.2.4a Downlink PUI for PDCH3(2,6) . 85
10.2.5 Uplink PUI for PDCH (1,n), PDCH3(1,n) and PDCH3(2,6) . 86
10.3 RLC/MAC header . 86
10.3.1 Downlink RLC/MAC header for PNB(m,n) and PNB2(m,n) bursts . 86
10.3.1a Downlink RLC/MAC Data header for PNB3(m,n) bursts - Iu mode only . 87
10.3.1b Downlink RLC/MAC Control header for PNB3(m,n) bursts - Iu mode only . 87
10.3.2 Uplink RLC/MAC header for PNB(m,n) and PNB2(m,n) bursts - A/Gb mode only . 87
10.3.2a Uplink RLC/MAC Data header for PNB3(m,n) bursts - Iu mode only . 88
10.3.2b Uplink RLC/MAC Control header for PNB3(m,n) bursts - Iu mode only . 88
10.4 Header fields . 88
10.4.1 Uplink state flag (USF) field. 88
10.4.1.1 PDCH(4,3), PDCH(5,3) PDCH2(5,3) and PDCH2(5,12) - A/Gb mode only . 88
10.4.1.1a PDCH3(5,3),PDCH3(5,12) and PDCH3(10,3) - Iu mode only . 88
10.4.1.2 PDCH(2,6) - A/Gb mode only . 89
10.4.1.2a PDCH3(2,6) and PDCH3(1,6) - Iu mode only . 89
ETSI
GMR-1 3G 44.060 7 ETSI TS 101 376-4-12 V3.2.1 (2011-02)

10.4.2 Void . 89
10.4.3 Stall indicator (SI) bit . 89
10.4.4 Supplementary/polling (S/P) bit . 90
10.4.5 Unsolicited uplink grant (UUG) field . 90
10.4.5.1 UUG field for terminal type A and C - A/Gb mode only . 90
10.4.5.2 UUG field for terminal type D - A/Gb mode only . 91
10.4.5.3 PDCH3 UUG field - Iu mode only . 91
10.4.5.3.1 PDCH3(10,3) and PDCH3(5,3) - Iu mode only . 91
10.4.5.3.2 PDCH3(5,12) and PDCH3(2,6) - Iu mode only . 92
10.4.5.3.3 DACCH - Iu mode only . 92
10.4.6 Void . 92
10.4.7 Payload type field . 92
10.4.7a Void . 92
10.4.8 Final Block Indicator (FBI) bit . 92
10.4.8a Void . 93
10.4.8b.1 Split Block Number (SPBN) - Iu mode only . 93
10.4.8b.2 Final Split Block (FSB) - Iu mode only . 93
10.4.9 Void . 93
10.4.9a Void . 93
10.4.9b Void . 93
10.4.9c Void . 93
10.4.9d Direction (D) bit . 93
10.4.9e SRB field (Iu mode only) . 93
10.4.10 Temporary flow identifier (TFI) field . 94
10.4.10.1 Downlink header TFI . 94
10.4.10.1a Downlink header TFI (bit7) . 94
10.4.10.1.1 Data-only downlink RLC/MAC block . 94
10.4.10.1.2 Control-only downlink RLC/MAC block (A/Gb mode only) . 94
10.4.10.1.3 Control+data downlink RLC/MAC block (A/Gb mode only) . 94
10.4.10.2 Uplink header TFI . 94
10.4.10.2.1 Data-only uplink RLC/MAC block . 94
10.4.10.2.2 Control-only uplink RLC/MAC block (A/Gb mode only) . 95
10.4.10.2.3 Control+data uplink RLC/MAC block (A/Gb mode only) . 95
10.4.10a Power control (PC) field . 95
10.4.11 Extension (E) bit . 95
10.4.12 Block Sequence Number (BSN) field . 95
10.4.12a Void . 96
10.4.13 Void . 96
10.4.14 Void . 96
10.4.14a Void . 96
10.4.15 Last Part Size (LPS) field . 96
10.4.15a PDU Length . 96
10.4
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