Content for TS 25.322 Word version: 16.0.0
4 General
5 Functions
6 Services provided to upper layers
7 Services expected from MAC
8 Elements for layer-to-layer communication
9 Elements for peer-to-peer communication
10 Handling of unknown, unforeseen and erroneous protocol data
4 General Word‑p. 9
4.1 Objective
4.2 Overview of the RLC sublayer architecture Word‑p. 10
4.2.1 Model of the RLC sublayer
4.2.1.1 Transparent mode (TM) RLC entities Word‑p. 12
4.2.1.2 Unacknowledged mode (UM) RLC entities Word‑p. 13
4.2.1.2.1 Transmitting UM RLC entity Word‑p. 14
4.2.1.2.2 Receiving UM RLC entity Word‑p. 15
4.2.1.3 Acknowledged mode (AM) RLC entity
4.2.1.3.1 Transmitting side Word‑p. 16
4.2.1.3.2 Receiving side Word‑p. 17
5 Functions
6 Services provided to upper layers Word‑p. 18
7 Services expected from MAC Word‑p. 21
8 Elements for layer-to-layer communication
9 Elements for peer-to-peer communication Word‑p. 24
9.1 Protocol data units
9.1.1 Data PDUs
9.1.2 Control PDUs Word‑p. 25
9.2 Formats and parameters
9.2.1 Formats
9.2.1.1 General Word‑p. 26
9.2.1.2 TMD PDU
9.2.1.3 UMD PDU
9.2.1.4 AMD PDU Word‑p. 27
9.2.1.5 STATUS PDU
9.2.1.6 Piggybacked STATUS PDU Word‑p. 28
9.2.1.7 RESET, RESET ACK PDU
9.2.2 Parameters
9.2.2.1 D/C field Word‑p. 29
9.2.2.2 PDU Type
9.2.2.3 Sequence Number (SN)
9.2.2.4 Polling bit (P)
9.2.2.5 Extension bit (E)
9.2.2.6 Reserved 1 (R1) Word‑p. 30
9.2.2.7 Header Extension Type (HE)
9.2.2.8 Length Indicator (LI)
9.2.2.9 Data field Word‑p. 34
9.2.2.10 Padding (PAD) Word‑p. 36
9.2.2.11 SUFI
9.2.2.11.1 The No More Data super-field Word‑p. 37
9.2.2.11.2 The Acknowledgement super-field
9.2.2.11.3 The Window Size super-field
9.2.2.11.4 The List super-field Word‑p. 38
9.2.2.11.5 The Bitmap super-field
9.2.2.11.6 The Relative List super-field Word‑p. 39
9.2.2.11.7 The Move Receiving Window Acknowledgement super-field Word‑p. 40
9.2.2.11.8 The Move Receiving Window (MRW) super-field
9.2.2.11.9 The Poll (POLL) super-field |R7| Word‑p. 41
9.2.2.12 Reserved 2 (R2)
9.2.2.13 Reset Sequence Number (RSN)
9.2.2.14 Hyper Frame Number Indicator (HFNI) Word‑p. 42
9.3 Protocol states
9.3.1 State model for transparent mode entities
9.3.2 State model for unacknowledged mode entities
9.3.3 State model for acknowledged mode entities Word‑p. 44
9.4 State variables
9.5 Timers Word‑p. 49
9.6 Protocol Parameters Word‑p. 51
9.7 Specific functions Word‑p. 52
9.7.1 Polling function for acknowledged mode
9.7.2 STATUS transmission for acknowledged mode Word‑p. 54
9.7.3 SDU discard function for acknowledged, unacknowledged, and transparent mode Word‑p. 55
9.7.3.1 Timer based discard, with explicit signalling
9.7.3.2 Timer based discard, without explicit signalling Word‑p. 56
9.7.3.3 SDU discard after MaxDAT number of transmissions
9.7.3.4 No_discard after MaxDAT number of transmissions
9.7.3.5 SDU discard not configured
9.7.4 Void
9.7.5 Local Suspend function for acknowledged and unacknowledged mode Word‑p. 57
9.7.6 RLC Stop, RLC Continue function for acknowledged and unacknowledged mode
9.7.7 RLC re-establishment function for acknowledged and unacknowledged mode Word‑p. 58
9.7.8 Ciphering for acknowledged and unacknowledged mode Word‑p. 60
9.7.9 Reconfiguration of RLC parameters by upper layers |R4|
9.7.10 Duplicate avoidance and reordering for unacknowledged mode |R6| Word‑p. 61
10 Handling of unknown, unforeseen and erroneous protocol data Word‑p. 63
10.1 Erroneous Sequence Number
10.2 Inconsistent status indication
10.3 Invalid PDU format
10.4 RLC PDU with CRC error
