Tech-invite3GPPspaceIETF RFCsSIP
Quick21222324252627282931323334353637384‑5x

Content for  TS 38.321  Word version:  16.5.0

Top   Top   None   None   Next
1…   4…   5…   6…

 

1  ScopeWord‑p. 8

The present document specifies the NR MAC protocol.

2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 38.300: "NR; Overall description; Stage 2".
[3]
TS 38.322: "NR; Radio Link Control (RLC) protocol specification".
[4]
TS 38.323: "NR; Packet Data Convergence Protocol (PDCP) protocol specification".
[5]
TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".
[6]
TS 38.213: "NR; Physical Layer Procedures for control".
[7]
TS 38.214: "NR; Physical Layer Procedures for data".
[8]
TS 38.211: "NR; Physical channels and modulation".
[9]
TS 38.212: "NR; Multiplexing and channel coding".
[10]  Void.
[11]
TS 38.133: "NR; Requirements for support of radio resource management".
[12]
TS 36.133: "Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of radio resource management".
[13]
TS 26.114: "Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction".
[14]
TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone".
[15]
TS 38.101-2: "NR; User Equipment (UE) radio transmission and reception; Part 2: Range 2 Standalone".
[16]
TS 38.101-3: "NR; User Equipment (UE) radio transmission and reception; Part 3: Range 1 and Range 2 Interworking operation with other radios".
[17]
TS 36.213: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Layer Procedures".
[18]
TS 37.213: "Physical layer procedures for shared spectrum channel access".
[19]
TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".
[20]
TS 23.285: "Architecture enhancements for V2X services".
[21]
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification".
[22]
TS 36.321: "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC); Protocol specification".
[23]
TS 37.355: "Evolved Universal Terrestrial Radio Access (E-UTRA); LTE Positioning Protocol (LPP)".
[24]
TS 38.215: "NR; Physical layer measurements".
Up

3  Definitions, symbols and abbreviationsWord‑p. 9

3.1  Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Dormant BWP:
The dormant BWP is one of downlink BWPs configured by the network via dedicated RRC signaling. In the dormant BWP, the UE stop monitoring PDCCH on/for the SCell, but continues performing CSI measurements, Automatic Gain Control (AGC) and beam management, if configured.
DRX group:
A group of Serving Cells that is configured by RRC and that have the same DRX Active Time.
HARQ information:
HARQ information for DL-SCH, for UL-SCH, or for SL-SCH transmissions consists of New Data Indicator (NDI), Transport Block size (TBS), Redundancy Version (RV), and HARQ process ID.
IAB-donor:
gNB that provides network access to UEs via a network of backhaul and access links.
IAB-node:
RAN node that supports NR access links to UEs and NR backhaul links to parent nodes and child nodes.
Listen Before Talk:
A procedure according to which transmissions are not performed if the channel is identified as being occupied, see TS 37.213.
Msg3:
Message transmitted on UL-SCH containing a C-RNTI MAC CE or CCCH SDU, submitted from upper layer and associated with the UE Contention Resolution Identity, as part of a Random Access procedure.
NR backhaul link:
NR link used for backhauling between an IAB-node and an IAB-donor, and between IAB-nodes in case of a multi-hop backhauling.
NR sidelink communication:
AS functionality enabling at least V2X Communication as defined in TS 23.287, between two or more nearby UEs, using NR technology but not traversing any network node.
PDCCH occasion:
A time duration (i.e. one or a consecutive number of symbols) during which the MAC entity is configured to monitor the PDCCH.
Serving Cell:
A PCell, a PSCell, or an SCell in TS 38.331.
Sidelink transmission information:
Sidelink transmission information included in a SCI for a SL-SCH transmission as specified in clause 8.3 of TS 38.212 and clause 8.4 of TS 38.212 consists of Sidelink HARQ information including NDI, RV, Sidelink process ID, HARQ feedback enabled/disabled indicator, Sidelink identification information including cast type indicator, Source Layer-1 ID and Destination Layer-1 ID, and Sidelink other information including CSI request, a priority, a communication range requirement and Zone ID.
Special Cell:
For Dual Connectivity operation the term Special Cell refers to the PCell of the MCG or the PSCell of the SCG depending on if the MAC entity is associated to the MCG or the SCG, respectively. Otherwise the term Special Cell refers to the PCell. A Special Cell supports PUCCH transmission and contention-based Random Access, and is always activated.
Timing Advance Group:
A group of Serving Cells that is configured by RRC and that, for the cells with a UL configured, using the same timing reference cell and the same Timing Advance value. A Timing Advance Group containing the SpCell of a MAC entity is referred to as Primary Timing Advance Group (PTAG), whereas the term Secondary Timing Advance Group (STAG) refers to other TAGs.
V2X sidelink communication:
AS functionality enabling V2X Communication as defined in TS 23.285, between nearby UEs, using E-UTRA technology but not traversing any network node.
Up

3.2  AbbreviationsWord‑p. 10

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
AP
Aperiodic
BFR
Beam Failure Recovery
BSR
Buffer Status Report
BWP
Bandwidth Part
CE
Control Element
CG
Cell Group
CI-RNTI
Cancellation Indication RNTI
CSI
Channel State Information
CSI-IM
CSI Interference Measurement
CSI-RS
CSI Reference Signal
CS-RNTI
Configured Scheduling RNTI
DAPS
Dual Active Protocol Stack
DCP
DCI with CRC scrambled by PS-RNTI
DL-PRS
DownLink-Positioning Reference Signal
IAB
Integrated Access and Backhaul
INT-RNTI
Interruption RNTI
LBT
Listen Before Talk
LCG
Logical Channel Group
LCP
Logical Channel Prioritization
MCG
Master Cell Group
MPE
Maximum Permissible Exposure
NUL
Normal Uplink
NZP CSI-RS
Non-Zero Power CSI-RS
PDB
Packet Delay Budget
PHR
Power Headroom Report
PS-RNTI
Power Saving RNTI
PTAG
Primary Timing Advance Group
QCL
Quasi-colocation
RS
Reference Signal
SCG
Secondary Cell Group
SFI-RNTI
Slot Format Indication RNTI
SI
System Information
SL-RNTI
Sidelink RNTI
SLCS-RNTI
Sidelink Configured Scheduling RNTI
SpCell
Special Cell
SP
Semi-Persistent
SP-CSI-RNTI
Semi-Persistent CSI RNTI
SPS
Semi-Persistent Scheduling
SR
Scheduling Request
SS
Synchronization Signals
SSB
Synchronization Signal Block
STAG
Secondary Timing Advance Group
SUL
Supplementary Uplink
TAG
Timing Advance Group
TCI
Transmission Configuration Indicator
TPC-SRS-RNTI
Transmit Power Control-Sounding Reference Signal-RNTI
UCI
Uplink Control Information
V2X
Vehicle-to-Everything
ZP CSI-RS
Zero Power CSI-RS
Up

Up   Top   ToC