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TS 38.322  RAN2 ★
5G New Radio —
Radio Link Control (RLC) protocol specification

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V16.0.0 (Wzip)  2020/03  33 p.
V15.5.0 (PDF)  2019/03  35 p.
WI Acronym:  NR_newRAT-Core
Rapporteur:  Ms. Zhang, Yuanyuan  MediaTek Inc. 
The present document specifies the NR Radio Link Control (RLC) protocol for the UE-NR radio interface.

full Table of Contents for  TS 38.322  Word version:   15.5.0

Here   Top
1  Scope  Word-p. 6
2  References
3  Definitions, symbols and abbreviations
3.1  Definitions
3.2  Abbreviations
4  General  Word-p. 7
4.1  Introduction
4.2  RLC architecture
4.2.1  RLC entities
4.2.1.1  TM RLC entity  Word-p. 8
4.2.1.1.1  General  Up
4.2.1.1.2  Transmitting TM RLC entity  Word-p. 9
4.2.1.1.3  Receiving TM RLC entity
4.2.1.2  UM RLC entity
4.2.1.2.1  General
4.2.1.2.2  Transmitting UM RLC entity  Word-p. 10
4.2.1.2.3  Receiving UM RLC entity
4.2.1.3  AM RLC entity
4.2.1.3.1  General
4.2.1.3.2  Transmitting side  Word-p. 11
4.2.1.3.3  Receiving side  Word-p. 12
4.3  Services
4.3.1  Services provided to upper layers
4.3.2  Services expected from lower layers
4.4  Functions
5  Procedures  Word-p. 13
5.1  RLC entity handling
5.1.1  RLC entity establishment
5.1.2  RLC entity re-establishment
5.1.3  RLC entity release
5.2  Data transfer procedures  Up
5.2.1  TM data transfer
5.2.1.1  Transmit operations
5.2.1.1.1  General
5.2.1.2  Receive operations
5.2.1.2.1  General
5.2.2  UM data transfer  Word-p. 14
5.2.2.1  Transmit operations
5.2.2.1.1  General
5.2.2.2  Receive operations
5.2.2.2.1  General  Up
5.2.2.2.2  Actions when an UMD PDU is received from lower layer
5.2.2.2.3  Actions when an UMD PDU is placed in the reception buffer
5.2.2.2.4  Actions when t-Reassembly expires  Word-p. 15
5.2.3  AM data transfer  Word-p. 16
5.2.3.1  Transmit operations
5.2.3.1.1  General
5.2.3.2  Receive operations
5.2.3.2.1  General
5.2.3.2.2  Actions when an AMD PDU is received from lower layer  Word-p. 17
5.2.3.2.3  Actions when an AMD PDU is placed in the reception buffer  Up
5.2.3.2.4  Actions when t-Reassembly expires  Word-p. 18
5.3  ARQ procedures
5.3.1  General
5.3.2  Retransmission
5.3.3  Polling  Word-p. 19
5.3.3.1  General
5.3.3.2  Transmission of a AMD PDU
5.3.3.3  Reception of a STATUS report  Word-p. 20
5.3.3.4  Expiry of t-PollRetransmit
5.3.4  Status reporting  Up
5.4  SDU discard procedures  Word-p. 21
5.5  Data volume calculation
5.6  Handling of unknown, unforeseen and erroneous protocol data  Word-p. 22
5.6.1  Reception of PDU with reserved or invalid values
6  Protocol data units, formats and parameters
6.1  Protocol data units
6.1.1  General
6.1.2  RLC data PDU
6.1.3  RLC control PDU
6.2  Formats and parameters  Up
6.2.1  General
6.2.2  Formats
6.2.2.1  General
6.2.2.2  TMD PDU  Word-p. 23
6.2.2.3  UMD PDU
6.2.2.4  AMD PDU  Word-p. 24
6.2.2.5  STATUS PDU  Word-p. 25
6.2.3  Parameters  Word-p. 27
6.2.3.1  General
6.2.3.2  Data field  Up
6.2.3.3  Sequence Number (SN) field
6.2.3.4  Segmentation Info (SI) field
6.2.3.5  Segment Offset (SO) field
6.2.3.6  Data/Control (D/C) field  Word-p. 28
6.2.3.7  Polling bit (P) field
6.2.3.8  Reserved (R) field
6.2.3.9  Control PDU Type (CPT) field
6.2.3.10  Acknowledgement SN (ACK_SN) field
6.2.3.11  Extension bit 1 (E1) field  Word-p. 29
6.2.3.12  Negative Acknowledgement SN (NACK_SN) field  Up
6.2.3.13  Extension bit 2 (E2) field
6.2.3.14  SO start (SOstart) field
6.2.3.15  SO end (SOend) field
6.2.3.16  Extension bit 3 (E3) field  Word-p. 30
6.2.3.17  NACK range field
7  Variables, constants and timers
7.1  State variables
7.2  Constants  Word-p. 32
7.3  Timers
7.4  Configurable parameters  Up
A  Change history  Word-p. 33

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