ETSI
TSI TS 100 938 V8.2.1 (2002
5)
GPP TS 04.06 version 8.2.1 Release 1999
3.8.4 Unnumbered information (UI) command ...................................................................................................21
3.8.5 Receive ready (RR) command/response.....................................................................................................21
3.8.6 Reject (REJ) command/response................................................................................................................21
3.8.7 Receive not ready (RNR) command/response............................................................................................22
3.8.8 Unnumbered acknowledgement (UA) response .........................................................................................22
3.8.9 Disconnected mode (DM) response............................................................................................................22
4 Elements for layer-to-layer communication...........................................................................................22
4.1 Definition of primitives and parameters...........................................................................................................22
4.1.1 Generic names ............................................................................................................................................22
4.1.1.1 DL-ESTABLISH ..................................................................................................................................23
4.1.1.2 DL-RELEASE ......................................................................................................................................23
4.1.1.3 DL-DATA.............................................................................................................................................23
4.1.1.4 DL-UNIT DATA ..................................................................................................................................23
4.1.1.5 DL-SUSPEND ......................................................................................................................................23
4.1.1.6 DL-RESUME........................................................................................................................................23
4.1.1.7 DL-RECONNECT................................................................................................................................23
4.1.1.8 DL-RANDOM ACCESS ......................................................................................................................23
4.1.1.9 MDL-RELEASE...................................................................................................................................23
4.1.1.10 MDL-ERROR.......................................................................................................................................23
4.1.1.11 PH-DATA.............................................................................................................................................24
4.1.1.12 PH-RANDOM ACCESS ......................................................................................................................24
4.1.1.13 PH-CONNECT .....................................................................................................................................24
4.1.1.14 PH-READY-TO-SEND ........................................................................................................................24
4.1.1.15 PH-EMPTY-FRAME............................................................................................................................24
4.1.2 Primitives types ..........................................................................................................................................24
4.1.2.1 REQUEST.............................................................................................................................................24
4.1.2.2 INDICATION.......................................................................................................................................24
4.1.2.3 RESPONSE...........................................................................................................................................24
4.1.2.4 CONFIRM ............................................................................................................................................25
4.1.3 Parameter definition....................................................................................................................................25
4.1.3.1 Message unit .........................................................................................................................................25
4.1.3.2 Channel type .........................................................................................................................................25
4.1.3.3 Service Access Point.............................................................................................................................26
4.1.3.4 Release mode ........................................................................................................................................26
4.1.3.5 Error cause ............................................................................................................................................26
4.1.3.6 Establish mode......................................................................................................................................26
4.1.3.7 L2 header type.......................................................................................................................................26
4.1.3.8 Priority ..................................................................................................................................................27
4.2 Primitive procedures.........................................................................................................................................30
5 Definition of the peer-to-peer protocol LAPDm....................................................................................31
5.1 General.............................................................................................................................................................31
5.2 General Protocol Procedures............................................................................................................................32
5.2.1 Unacknowledged information transfer........................................................................................................32
5.2.2 Acknowledged multiple frame information transfer...................................................................................32
5.3 Procedures for unacknowledged information transfer......................................................................................32
5.3.1 General........................................................................................................................................................32
5.3.2 Transmission of unacknowledged information...........................................................................................32
5.3.3 Receipt of unacknowledged information....................................................................................................32
5.4 Procedures for establishment and release of multiple frame operation ............................................................33
5.4.1 Establishment of multiple frame operation.................................................................................................33
5.4.1.1 General..................................................................................................................................................33
5.4.1.2 Normal establishment procedures.........................................................................................................33
5.4.1.3 Procedure on expiry of timer T200: Normal establishment ..................................................................34
5.4.1.4 Contention resolution establishment procedure ....................................................................................34
5.4.1.5 Procedure on expiry of timer T200: contention resolution (MS only)..................................................36
5.4.2 Information transfer....................................................................................................................................36
5.4.2.1 General requirements ............................................................................................................................36
5.4.2.2 Error conditions.....................................................................................................................................36
5.4.2.3 Fill frames.............................................................................................................................................37
5.4.3 Suspension and resumption of multiple frame operation............................................................................38
