3 Symbols and abbreviations

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

3.1 Symbols

For the purposes of the present document, the following symbols apply:

System frame number as defined in [3]

Slot number within a radio frame as defined in [3]

Number of configured cells

Downlink bandwidth configuration, expressed in units of as defined in [3]

Uplink bandwidth configuration, expressed in units of as defined in [3]

Number of SC-FDMA symbols in an uplink slot as defined in [3]

Resource block size in the frequency domain, expressed as a number of subcarriers as defined in [3]

Basic time unit as defined in [3]

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].

ACK Acknowledgement

AUL Autonomous Uplink

AUL-DFI AUL downlink feedback information

BCH Broadcast Channel

CCE Control Channel Element

CDD Cyclic Delay Diversity

CG Cell Group

CIF Carrier Indicator Field

CQI Channel Quality Indicator

CRC Cyclic Redundancy Check

CRI CSI-RS Resource Indicator

CSI Channel State Information

CSI-IM CSI-interference measurement

DAI Downlink Assignment Index

DC Dual Connectivity

DCI Downlink Control Information

DL Downlink

DL-SCH Downlink Shared Channel

DTX Discontinuous Transmission

EDT Early Data Transmission

EN-DC E-UTRA NR Dual Connectivity with MCG using E-UTRA and SCG using NR

EPDCCH Enhanced Physical Downlink Control Channel

EPRE Energy Per Resource Element

MCG Master Cell Group

MCS Modulation and Coding Scheme

NACK Negative Acknowledgement

NE-DC NR E-UTRA Dual Connectivity with MCG using NR and SCG using E-UTRA

NPBCH Narrowband Physical Broadcast CHannel

NPDCCH Narrowband Physical Downlink Control CHannel

NPDSCH Narrowband Physical Downlink Shared CHannel

NPRACH Narrowband Physical Random Access CHannel

NPUSCH Narrowband Physical Uplink Shared CHannel

NPSS Narrowband Primary Synchronization Signal

NSSS Narrowband Secondary Synchronization Signal

NRS Narrowband Reference Signal

NTN Non-Terrestrial Network

PBCH Physical Broadcast Channel

PCFICH Physical Control Format Indicator Channel

PDCCH Physical Downlink Control Channel

PDSCH Physical Downlink Shared Channel

PHICH Physical Hybrid ARQ Indicator Channel

PMCH Physical Multicast Channel

PMI Precoding Matrix Indicator

PRACH Physical Random Access Channel

PRS Positioning Reference Signal

PRB Physical Resource Block

PSBCH Physical Sidelink Broadcast Channel

PSCCH Physical Sidelink Control Channel

PSCell Primary Secondary cell

PSDCH Physical Sidelink Discovery Channel

PSSCH Physical Sidelink Shared Channel

PSSS Primary Sidelink Synchronisation Signal

PUCCH Physical Uplink Control Channel

PUCCH-SCell PUCCH SCell

PUR Preconfigured Uplink Resource

PUSCH Physical Uplink Shared Channel

PTI Precoding Type Indicator

RBG Resource Block Group

RE Resource Element

RI Rank Indication

RS Reference Signal

RSS Resynchronization Signal

SCG Secondary Cell Group

SINR Signal to Interference plus Noise Ratio

SPS C-RNTI Semi-Persistent Scheduling C-RNTI

SR Scheduling Request

SRS Sounding Reference Symbol

SSSS Secondary Sidelink Synchronisation Signal

TAG Timing Advance Group

TBS Transport Block Size

UCI Uplink Control Information

UE User Equipment

UL Uplink

UL-SCH Uplink Shared Channel

VRB Virtual Resource Block