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9
9.1
9.1.1
9.1.2
9.1.3
9.1.4
9.1.5
9.1.6
9.1.7
9.1.8
9.1.9
9.2
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
9.2.7
9.2.8
9.2.9
9.2.10
9.2.11
9.2.12
9.2.13
9.2.14
9.3
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8
9.3.9
9.3.10
9.3.11
9.3.12
9.3.13
9.3.14
9.3.15
9.3.16
9.3.17
9.3.18
9.3.19
9.3.20
9.3.21
9.3.22
9.3.23
9.3.24
9.3.25
9.3.26
9.3.27
9.3.28
9.3.29
9.3.30
9.3.31
9.3.32
9.3.33
9.3.34
9.3.35

ETSI TS 102 361-1 V1.2.1 (2006-01)

Layer 2 PDU description........................................................................................................................76
PDUs for voice bursts, general data bursts and the CACH ..............................................................................77
Synchronization (SYNC) PDU ...................................................................................................................77
Embedded signalling (EMB) PDU .............................................................................................................77
Slot Type (SLOT) PDU ..............................................................................................................................78
TACT PDU.................................................................................................................................................78
Reverse Channel (RC) PDU .......................................................................................................................78
Full Link Control (FULL LC) PDU............................................................................................................78
Short Link Control (SHORT LC) PDU ......................................................................................................79
Control Signalling Block (CSBK) PDU .....................................................................................................79
Pseudo Random Fill Bit (PR FILL) PDU ...................................................................................................79
Data related PDU description...........................................................................................................................79
Confirmed packet Header (C_HEAD) PDU ...............................................................................................80
Rate ¾ coded packet Data (R_3_4_DATA) PDU ......................................................................................80
Rate ¾ coded Last Data block (R_3_4_LDATA) PDU..............................................................................80
Confirmed Response packet Header (C_RHEAD) PDU ............................................................................81
Confirmed Response packet Data (C_RDATA) PDU ................................................................................81
Unconfirmed data packet Header (U_HEAD) PDU ...................................................................................82
Rate ½ coded packet Data (R_1_2_DATA) PDU ......................................................................................82
Rate ½ coded Last Data block (R_1_2_LDATA) PDU..............................................................................82
Proprietary Header (P-HEAD) PDU...........................................................................................................83
Status/Precoded short data packet Header (SP_HEAD) PDU ....................................................................83
Raw short data packet Header (R_HEAD) PDU ........................................................................................84
Defined Data short data packet Header (DD_HEAD) PDU .......................................................................84
Unified Data Transport Header (UDT_HEAD) PDU .................................................................................85
Unified Data Transport Last Data block (UDT_LDATA) PDU................................................................85
Layer 2 information element coding ................................................................................................................85
Colour Code (CC).......................................................................................................................................86
Privacy Indicator (PI)..................................................................................................................................86
LC Start/Stop (LCSS) .................................................................................................................................86
EMB parity .................................................................................................................................................86
Feature set ID (FID)....................................................................................................................................87
Data Type....................................................................................................................................................87
Slot Type parity ..........................................................................................................................................87
Access Type (AT).......................................................................................................................................88
TDMA Channel (TC)..................................................................................................................................88
Protect Flag (PF).........................................................................................................................................88
Full Link Control Opcode (FLCO) .............................................................................................................88
Short Link Control Opcode (SLCO)...........................................................................................................88
TACT parity................................................................................................................................................89
RC parity.....................................................................................................................................................89
Group or Individual (G/I) ...........................................................................................................................89
Response Requested (A) .............................................................................................................................89
Data Packet Format (DPF)..........................................................................................................................89
SAP Identifier (SAPID) ..............................................................................................................................89
Logical Link ID (LLID)..............................................................................................................................90
Full Message Flag (F) .................................................................................................................................90
Blocks to Follow (BF) ................................................................................................................................90
Pad Octet Count (POC)...............................................................................................................................90
Re-Synchronize Flag (S).............................................................................................................................91
Send sequence number (N(S)) ....................................................................................................................91
Fragment Sequence Number (FSN)............................................................................................................91
Data Block Serial Number (DBSN)............................................................................................................92
Data block CRC (CRC-9) ...........................................................................................................................92
Class (Class) ...............................................................................................................................................92
Type (Type) ................................................................................................................................................92
Status (Status) .............................................................................................................................................93
Last Block (LB) ..........................................................................................................................................93
Control Signalling BlocK Opcode (CSBKO) .............................................................................................93
Appended Blocks (AB)...............................................................................................................................93
Source Port (SP) .........................................................................................................................................93
Destination Port (DP)..................................................................................................................................94

ETSI