ETSI TS 101 376-4-14 V3.1.1 (2009-07)

GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 4: Radio interface protocol specifications; Sub-part 14: Mobile Earth Station (MES) - Base Station System (BSS) interface; Radio Link Control/Medium Access Control (RLC/MAC) protocol; Iu Mode; GMR-1 3G 44.160

DTS/SES-00309-4-14

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 4: Radio interface protocol specifications;
Sub-part 14: Mobile Earth Station (MES) -
Base Station System (BSS) interface; Radio Link Control
/Medium Access Control (RLC/MAC) protocol; Iu Mode;
GMR-1 3G 44.160
GMR-1 3G 44.160 2 ETSI TS 101 376-4-14 V3.1.1 (2009-07)

Reference
DTS/SES-00309-4-14
Keywords
3G, GMPRS, GMR, GPRS, GSM, GSO, MES,
mobile, MSS, radio, satellite, S-PCN
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ETSI
GMR-1 3G 44.160 3 ETSI TS 101 376-4-14 V3.1.1 (2009-07)

Contents
Intellectual Property Rights . 9
Foreword . 9
Introduction . 10
1 Scope . 12
1.1 General . 12
1.2 Related documents . 12
1.3 Use of logical control channels . 12
1.4 Use of logical traffic channels . 12
1.4a Use of transport channels . 13
1.5 Conventions . 13
2 References . 13
2.1 Normative references . 13
2.2 Informative references . 14
3 Definitions, symbols and abbreviations . 15
3.1 Definitions . 15
3.2 Symbols . 15
3.3 Abbreviations . 15
4 Layered overview of radio interface. 16
4.0 Protocol architecture. 16
4.1 Layer services . 17
4.2 Layer functions . 17
4.2.1 RLC function . 17
4.2.2 MAC layer function . 18
4.3 Service primitives . 19
4.3.1 MAC to Physical Layer Primitives . 19
4.3.2 PDCP to RLC Primitives . 19
4.3.2.1 Primitives . 19
4.3.2.2 Primitive parameters . 20
4.3.3 RRC to RLC Primitives . 20
4.3.3.1 Primitives . 20
4.3.3.2 Primitive parameters . 21
4.3.4 RRC to MAC Primitives . 22
4.3.4.1 Primitives . 22
4.3.4.2 Primitive Parameters . 22
4.4 Services required from lower layers . 23
5 Introduction to the Medium Access Control (MAC) procedures . 24
5.1 General . 24
5.2 Multiplexing principles . 24
5.2.1 Temporary Block Flow . 24
5.2.2 Temporary Flow Identity . 24
5.2.2.1 Temporary Flow Identity for PDCH . 24
5.2.2.2 Temporary Flow Identity for DCH . 24
5.2.3 Uplink State Flag . 25
5.2.4 Medium Access modes . 25
5.2.4.1 Medium Access modes for PDCH . 25
5.2.4.2 Medium Access modes for DCH . 25
5.2.5 Multiplexing of GMPRS and future mobile earth stations . 25
5.3 MAC States . 25
5.3.1 MAC-Idle state . 25
5.3.1.1 General . 25
5.3.1.2 Establishment of a PDCH . 25
5.3.1.3 Establishment of a DCH . 25
5.3.2 MAC-Shared state . 26
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5.3.2.1 General . 26
5.3.2.2 Release of all PDCHs . 26
5.3.2.3 Establishment of a DCH . 26
5.3.2.4 Radio bearer reconfiguration . 26
5.3.3 MAC-DTM state . 26
5.3.3.1 General . 26
5.3.3.2 Release of all PDCHs . 26
5.3.3.3 Release of all DCHs . 26
5.3.3.4 Release of all PDCHs and DCHs . 26
5.3.4 MAC-Dedicated state . 27
5.3.4.1 General . 27
5.3.4.2 Release of all DCHs . 27
5.3.4.3 Radio bearer reconfiguration . 27
5.3.5 MAC state machine . 27
5.4 General MAC procedures in MAC-Idle state and MAC-Shared state. 28
5.4.1 Mobile station side . 28
5.4.1.1 General . 28
5.4.1.2 Cell (Spotbeam) reselection . 28
5.4.1.3 Network Assisted Cell Change . 28
5.4.1.4 Release of DCHs . 28
5.4.1.4.1 General . 28
5.4.1.4.2 Continuation of PBCCH information . 28
5.4.1.4.3 Receipt of PSI14 message in MAC-DTM state . 28
5.4.1.5 System information on PBCCH . 28
5.4.1.6 System information on BCCH . 29
5.4.1.6.1 General . 29
5.4.1.6.2 Establishment of PBCCH . 29
5.4.1.6.3 (void) . 29
5.4.1.7 (void) . 29
5.4.1.8 Discontinuous reception (DRX) . 29
5.4.1.9 Page mode procedures on PCCCH . 29
5.4.1.10 Frequency Parameters . 29
5.4.1.11 G-RNTI Management . 29
5.4.2 Network side . 29
5.4.2.1 System Information broadcasting . 29
5.4.2.1.1 System information on PBCCH . 29
5.4.2.1.2 System information on BCCH . 30
5.4.2.1.3 System information on PACCH (and other logical channels) . 30
5.4.2.1.4 Consistent sets of system information messages . 30
5.4.2.2 Paging . 30
5.4.2.3 Network Assisted Cell Change . 30
5.5 Measurement reports . 30
5.5.1 General . 30
5.5.2 Network Control (NC) measurement reporting . 30
5.5.3 (void) . 30
5.5.4 Additional measurement and reporting parameters . 30
5.6 Mapping of Signalling Radio Bearers (SRB) onto logical channels . 30
5.6.1 Downlink . 30
5.6.2 Uplink . 30
5.6.2.1 MAC-Dedicated State . 30
5.6.2.2 MAC-Shared State . 31
5.6.2.3 MAC-DTM State . 31
5.7 Multiplexing principles with Flexible Layer One . 31
5.7.1 General . 31
5.7.2 Multiplexing between user-plane and control-plane . 31
6 Paging procedures . 32
6.1 General . 32
6.2 Paging initiation in MAC-Idle state . 32
6.3 Paging initiation in MAC-Shared state . 32
6.4 Reception of PACKET PAGING REQUEST by an MS . 32
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GMR-1 3G 44.160 5 ETSI TS 101 376-4-14 V3.1.1 (2009-07)

7 Medium Access Control (MAC) procedures on PCCCH . 32
7.1 General . 32
7.2 TBF establishment initiated by the mobile earth station on PCCCH . 33
7.2.1 General . 33
7.2.2 Permission to access the network . 33
7.2.3 Initiation of a TBF establishment . 33
7.2.3.1 Initiation of the packet access procedure . 33
7.2.3.1.1 General . 33
7.2.3.1.2 Access persistence control on PRACH . 34
7.2.3.2 Packet assignment procedure . 34
7.2.3.2.1 On receipt of a PACKET CHANNEL REQUEST or PACKET CHANNEL REQUEST
TYPE 2 message. 34
7.2.3.3 Contention resolution at one phase access . 35
7.2.3.4 RLC/MAC procedures during contention resolution . 35
7.2.3.4.1 RLC/MAC procedures during contention resolution on PDCHs. 35
7.2.3.4.2 RLC/MAC procedures during contention resolution on DCHs . 35
7.2.3.5 One phase packet access completion. 35
7.2.3.5.1 One phase packet access completion on PDCHs . 35
7.2.3.5.2 One phase packet access completion on DCHs . 36
7.2.3.6 Timing Advance . 36
7.2.3.6.1 Timing advance on PDCHs . 36
7.2.3.6.2 Timing advance on DCHs . 36
7.2.4 TBF establishment using two phase access . 36
7.2.5 Abnormal cases . 36
7.3 TBF establishment initiated by the network on CCCH . 37
7.4 Procedure for measurement report sending in MAC-Idle state . 37
7.5 Cell Change Order procedures in MAC-Idle state . 37
8 Medium Access Control (MAC) procedures on PDCH . 37
8.1 General . 37
8.1a Resource stealing (SFACCH). 38
8.2 Transfer of RLC data blocks . 38
8.2.1 Medium access mode . 38
8.2.2 Uplink RLC data block transfer . 38
8.2.2.0 General . 38
8.2.2.0.1 General . 38
8.2.2.0.2 Establishment of additional uplink TBF(s) . 38
8.2.2.0.3 Uplink resource reallocation/reconfiguration . 38
8.2.2.0.4 Establishment of downlink TBF(s) . 39
8.2.2.1 Dynamic Allocation uplink RLC data block transfer . 39
8.2.2.1.1 PACCH operation . 39
8.2.2.1.2 Resource Allocation/Reallocation for Uplink. 39
8.2.2.1.3 Establishment of downlink TBF . 41
8.2.2.2 Extended Dynamic Allocation uplink RLC data block transfer . 42
8.2.2.3 Exclusive Allocation uplink RLC data block transfer . 42
8.2.2.4 Network initiated release of uplink TBF . 42
8.2.2.5 Abnormal cases . 42
8.2.3 Downlink RLC data block transfer . 43
8.2.3.1 General . 43
8.2.3.1.0 General . 43
8.2.3.1.1 Downlink resource reallocation . 43
8.2.3.1.2 (void) . 44
8.2.3.2 Downlink RLC data block transfer procedure . 44
8.2.3.2.0 General . 44
8.2.3.2.1 Abnormal cases . 44
8.2.3.3 Polling for Packet Downlink Ack/Nack . 45
8.2.3.4 Resource Reassignment for downlink . 45
8.2.3.5 Establishment of uplink TBF . 46
8.2.3.5.0 General . 46
8.2.3.5.1 Abnormal cases . 46
8.2.3.6 Network initiated abnormal release of downlink TBF . 47
8.3 Packet PDCH Release . 47
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8.4 Procedure for measurement report sending in MAC-Shared state . 47
8.5 Network Controlled cell reselection procedures in MAC-Shared state . 47
8.6 Measurement Order procedures in MAC-Shared state . 47
8.7 PACKET CONTROL ACKNOWLEDGEMENT . 47
8.8 Abnormal cases . 47
8.8.1 General . 47
8.8.2 Abnormal release without retry . 48
8.8.3 Abnormal release with access retry . 48
8.8.4 Abnormal release with system information . 48
8.8.5 Abnormal release of an Uplink TBF with access retry . 48
8.8.6 Abnormal release of a Downlink TBF . 48
8.9 Network Assisted Cell Change procedures in MAC-Shared state. 48
8.10 Packet Link Quality Reporting . 48
8.11 Initiation of Packet access procedure following handover . 49
9 Medium Access Control (MAC) procedures on DCH . 49
9.1 General . 49
9.2 Transfer of RLC/MAC blocks . 49
9.2.0 General . 49
9.2.1 Dedicated allocation . 50
9.2.1.1 General . 50
9.2.1.2 Performance requirements for TCH and DCCH TBF modes . 50
9.2.1.3 Performance requirements for UDCH and CDCH TBF modes . 50
9.2.2 Transfer of RLC/MAC blocks on DTCH . 50
9.2.3 Transfer of RLC/MAC blocks on DACCH . 51
9.2.4 Transfer of RLC/MAC blocks on PDTCH and PACCH . 51
9.2.5 Transfer of RLC/MAC blocks on UDCH, CDCH and ADCH . 51
9.3 PACKET CONTROL ACKNOWLEDGEMENT . 51
9.3a Handover Access and Physical Information . 51
9.3a.1 Handover Access . 51
9.3a.2 Physical Information . 52
9.4 Abnormal cases . 52
10 Radio Link Control (RLC) procedures on PDTCH and PACCH . 52
10.1 General . 52
10.2 Procedures and parameters for peer-to-peer operation . 52
10.2.1 Send state variable V(S) . 52
10.2.2 Control send state variable V(CS) . 52
10.2.3 Acknowledge state variable V(A) . 52
10.2.4 Acknowledge state array V(B). 52
10.2.5 Block sequence number BSN . 52
10.2.6 Receive state variable V(R) . 53
10.2.7 Receive window state variable V(Q) . 53
10.2.8 Receive state array V(N) . 53
10.2.9 Starting sequence number (SSN) and received block bitmap (RBB) . 53
10.2.10 Window Size . 53
10.2.10a RLC buffer . 53
10.2.11 Compression . 53
10.2.12 Segmentation of upper layer PDUs into RLC data units . 53
10.2.13 Re-assembly of upper layer PDUs from RLC data units . 53
10.2.14 Segmentation of RLC/MAC control messages into RLC/MAC control blocks . 53
10.2.15 Re-assembly of RLC/MAC control messages from RLC/MAC control blocks . 53
10.3 Operation during RLC/MAC control message transfer . 54
10.4 Operation during RLC data block transfer . 54
10.4.1 General . 54
10.4.2 Countdown procedure . 54
10.4.3 Delayed release of downlink Temporary Block Flow . 54
10.4.4 Extended uplink TBF mode . 54
10.4.5 Acknowledged mode operation . 54
10.4.5.1 General . 54
10.4.5.2 Void. 54
10.4.5.3 Establishment of Temporary Block Flow . 54
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10.4.5.4 Operation of uplink Temporary Block Flow . 54
10.4.5.5 Release of uplink Temporary Block Flow . 54
10.4.5.6 Operation of downlink Temporary Block Flow . 54
10.4.5.7 Release of downlink Temporary Block Flow . 54
10.4.6 Unacknowledged mode operation . 55
10.4.6.1 General . 55
10.4.6.2 Establishment of Temporary Block Flow . 55
10.4.6.3 Operation of uplink Temporary Block Flow . 55
10.4.6.4 Release of uplink Temporary Block Flow . 55
10.4.6.5 Operation of downlink Temporary Block Flow . 55
10.4.6.6 Release of downlink Temporary Block Flow . 55
10.5 Abnormal release cases . 55
10.5.1 Abnormal release with access retry . 55
10.5.2 Abnormal release with cell reselection . 55
10.6 Uplink TBF release in extended uplink TBF mode . 55
11 Radio Link Control (RLC) procedures on DTCH and DACCH . 55
11.1 General . 55
11.2 Procedures and parameters for peer-to-peer operation . 56
11.2.1 Send state variable V(S) . 56
11.2.2 Control send state variable V(CS) . 56
11.2.3 Acknowledge state variable V(A) . 56
11.2.4 Acknowledge state array V(B). 56
11.2.5 Block sequence number BSN . 56
11.2.5.1 Block sequence number for TCH TBF mode . 56
11.2.5.2 Block sequence number for DCCH TBF mode . 56
11.2.6 Reduced block sequence number RBSN . 56
11.2.7 Receive state variable V(R) . 56
11.2.8 Receive window state variable V(Q) . 56
11.2.9 Receive state array V(N) . 56
11.2.10 Starting sequence number (SSN) and received block bitmap (RBB) . 57
11.2.11 Window Size . 57
11.2.11.1 DTCH . 57
11.2.11.2 DACCH . 57
11.2.11a RLC buffer . 57
11.2.12 Segmentation of upper layer PDUs into RLC data units . 57
11.2.13 Re-assembly of upper layer PDUs from RLC data units . 57
11.2.14 Segmentation of RLC/MAC control messages into RLC/MAC control blocks . 58
11.2.15 Re-assembly of RLC/MAC control messages from RLC/MAC control blocks . 58
11.3 Operation during RLC/MAC control message transfer . 58
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