Content for TS 44.065 Word version: 18.0.0
5 Service primitives and functions
5.1 Service primitives
5.2 Service functions
6 Protocol functions
6.1 Multiplexing of N PDUs
6.2 Establishment and release of acknowledged peer-to-peer LLC operation
6.3 N PDU buffering
6.4 Management of delivery sequence
6.5 Protocol control information compression
6.6 Data compression
6.7 Segmentation and reassembly
6.8 XID parameter negotiation
6.9 Data transfer
6.10 Possible combinations of SNDCP protocol functions and their connection to service access points
7 Definition of SN PDU
7.1 Format convention
7.2 SN PDU Formats
8 SNDCP XID parameters
$ Change History
5 Service primitives and functions p. 11
5.1 Service primitives p. 11
5.1.1 SNDCP service primitives p. 11
5.1.1.1 SN DATA.request p. 12
5.1.1.2 SN DATA.indication p. 12
5.1.1.3 SN UNITDATA.request p. 12
5.1.1.4 SN UNITDATA.indication p. 12
5.1.1.5 SN XID.request p. 12
5.1.1.6 SN XID.indication p. 12
5.1.1.7 SN XID.response p. 12
5.1.1.8 SN XID.confirm p. 12
5.1.2 Service primitives used by SNDCP layer p. 12
5.1.2.1 LL RESET.indication p. 13
5.1.2.2 LL ESTABLISH.request p. 14
5.1.2.3 LL ESTABLISH.indication p. 14
5.1.2.4 LL ESTABLISH.response p. 14
5.1.2.5 LL ESTABLISH.confirm p. 14
5.1.2.6 LL RELEASE.request p. 14
5.1.2.7 LL RELEASE.indication p. 14
5.1.2.8 LL RELEASE.confirm p. 15
5.1.2.9 LL XID.request p. 15
5.1.2.10 LL XID.indication p. 15
5.1.2.11 LL XID.response p. 15
5.1.2.12 LL XID.confirm p. 15
5.1.2.13 LL DATA.request p. 15
5.1.2.14 LL DATA.indication p. 15
5.1.2.15 LL DATA.confirm p. 15
5.1.2.16 LL UNITDATA.request p. 15
5.1.2.17 LL UNITDATA.indication p. 16
5.1.2.18 LL STATUS.indication p. 16
5.1.2.19 SNSM-ACTIVATE.indication p. 16
5.1.2.20 SNSM-ACTIVATE.response p. 16
5.1.2.21 SNSM-DEACTIVATE.indication p. 16
5.1.2.22 SNSM-DEACTIVATE.response p. 16
5.1.2.23 SNSM-MODIFY.indication p. 16
5.1.2.24 SNSM-MODIFY.response p. 17
5.1.2.25 SNSM-STATUS.request p. 17
5.1.2.26 SNSM-SEQUENCE.indication p. 17
5.1.2.27 SNSM-SEQUENCE.response p. 18
5.1.2.28 SNSM-STOP-ASSIGN.indication p. 18
5.2 Service functions p. 18
6 Protocol functions p. 20
6.1 Multiplexing of N PDUs p. 20
6.2 Establishment and release of acknowledged peer-to-peer LLC operation p. 20
6.2.1 Establishment of acknowledged peer-to-peer LLC operation p. 20
6.2.1.1 Establishment criteria p. 20
6.2.1.2 Re-establishment of the acknowledged peer-to-peer LLC operation p. 21
6.2.1.3 Establishment procedure p. 21
6.2.1.4 Exceptional situations p. 22
6.2.2 Release of acknowledged peer-to-peer LLC operation p. 22
6.3 N PDU buffering p. 23
6.4 Management of delivery sequence p. 23
6.5 Protocol control information compression p. 23
6.5.1 Negotiation of multiple protocol control information compression types p. 23
6.5.1.1 Format of the protocol control information compression field p. 24
6.5.1.1.1 Spare bit (X) p. 24
6.5.1.1.2 Propose bit (P) p. 24
6.5.1.1.3 Entity number p. 24
6.5.1.1.4 Algorithm identifier p. 25
6.5.1.1.5 PCOMP p. 25
6.5.1.2 Resetting compression entities following SNDCP XID negotiation p. 26
6.5.1.3 Parameters for compression entities p. 26
6.5.2 TCP/IP header compression (RFC1144) p. 26
6.5.2.1 Parameters p. 27
6.5.2.1.1 Applicable NSAPIs p. 27
6.5.2.1.2 S0 p. 27
6.5.2.2 Assignment of PCOMP values p. 27
6.5.2.3 Error Recovery p. 27
6.5.3 TCP/IP and UDP/IP header compression (RFC 2507) p. 27
6.5.3.1 Parameters p. 28
6.5.3.2 Assignment of PCOMP values for RFC2507 p. 28
6.5.3.3 Error Recovery p. 28
6.5.4 Robust Header Compression (ROHC) p. 28
6.5.4.1 Parameters p. 29
6.5.4.1.1 Applicable NSAPIs p. 29
6.5.4.1.2 MAX_CID p. 29
6.5.4.1.3 MAX_HEADER p. 29
6.5.4.1.4 Void
6.5.4.1.5 PROFILE p. 29
6.5.4.2 Assignment of PCOMP values for ROHC p. 30
6.5.4.3 Error Recovery and other feedback p. 30
6.5.5 Pre-defined Protocol control information ROHC compression types for MBMS p. 30
6.6 Data compression p. 31
6.6.1 Negotiation of multiple data compression types p. 31
6.6.1.1 Format of the data compression field p. 32
6.6.1.1.1 Spare bit (X) p. 32
6.6.1.1.2 Propose bit (P) p. 32
6.6.1.1.3 Entity number p. 32
6.6.1.1.4 Algorithm identifier p. 32
6.6.1.1.5 DCOMP p. 32
6.6.1.2 Resetting compression entities following SNDCP XID negotiation p. 33
6.6.1.3 Parameters for compression entities p. 33
6.6.2 Management of V.42 bis data compression p. 33
6.6.2.1 Parameters p. 33
6.6.2.2 Assignment of DCOMP values p. 34
6.6.2.3 Operation of V.42 bis data compression p. 34
6.6.3 Management of V.44 data compression p. 34
6.6.3.1 Parameters p. 34
6.6.3.1.1 Applicable NSAPIs p. 35
6.6.3.1.2 C0 p. 35
6.6.3.1.3 P0 p. 35
6.6.3.1.4 P1T p. 35
6.6.3.1.5 P1R p. 36
6.6.3.1.6 P3T p. 36
6.6.3.1.7 P3R p. 36
6.6.3.2 Assignment of DCOMP values p. 36
6.6.3.3 Operation of V.44 data compression p. 36
6.6.3.3.1 Packet Method p. 36
6.6.3.3.2 Multi-Packet Method p. 37
6.7 Segmentation and reassembly p. 37
6.7.1 General p. 37
6.7.1.1 Segmentation p. 37
6.7.1.2 Reassembly p. 38
6.7.2 Segmentation and reassembly in acknowledged mode p. 38
6.7.3 Segmentation and reassembly in unacknowledged mode p. 38
6.7.4 Exception situations p. 39
6.8 XID parameter negotiation p. 39
6.8.1 Negotiation of compression entities p. 42
6.8.1a Negotiation of SNDCP version p. 43
6.8.2 Values of SNDCP XID parameters p. 43
6.8.3 Exception handling p. 43
6.9 Data transfer p. 44
6.9.1 Acknowledged mode p. 44
6.9.2 Unacknowledged mode p. 45
6.10 Possible combinations of SNDCP protocol functions and their connection to service access points p. 46
7 Definition of SN PDU p. 47
7.1 Format convention p. 47
7.1.1 Numbering convention p. 47
7.1.2 Order of transmission p. 47
7.1.3 Field mapping convention p. 47
7.2 SN PDU Formats p. 48
8 SNDCP XID parameters p. 49
$ Change History p. 51
