3 Definitions of terms, symbols and abbreviations
38.101-53GPPNRPart 5: Satellite access Radio Frequency (RF) and performance requirementsRelease 17TSUser Equipment (UE) radio transmission and reception
3.1 Terms
For the purposes of the present document, the terms given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].
Geosynchronous Earth Orbit: Earth-centered orbit at approximately 35786 kilometres above Earth’s surface and synchronised with Earth’s rotation. A geostationary orbit is a non-inclined geosynchronous orbit, i.e. in the Earth’s equator plane.
Low Earth Orbit: Orbit around the Earth with an altitude between 300 km, and 1500 km.
Non-terrestrial networks: Networks, or segments of networks, using an airborne or space-borne vehicle to embark a transmission equipment relay node or base station.
Satellite: A space-borne vehicle embarking a bent pipe payload or a regenerative payload telecommunication transmitter, placed into Low-Earth Orbit (LEO), Medium-Earth Orbit (MEO), or Geostationary Earth Orbit (GEO).
Satellite Access Node: see definition in TS 38.108[4].
UE transmission bandwidth configuration: Set of resource blocks located within the UE channel bandwidth which may be used for transmitting or receiving by the UE.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
ΔFGlobal Granularity of the global frequency raster
ΔFRaster Band dependent channel raster granularity
BWChannel Channel bandwidth
BWinterferer Bandwidth of the interferer
FDL_low The lowest frequency of the downlink operating band
FDL_high The highest frequency of the downlink operating band
FUL_low The lowest frequency of the uplink operating band
FUL_high The highest frequency of the uplink operating band
FInterferer Frequency of the interferer
FInterferer (offset) Frequency offset of the interferer (between the center frequency of the interferer and the carrier frequency of the carrier measured)
FIoffset Frequency offset of the interferer (between the center frequency of the interferer and the closest edge of the carrier measured)
FOOB The boundary between the NR out of band emission and spurious emission domains
FREF RF reference frequency
FREF-Offs Offset used for calculating FREF
Fuw (offset) The frequency separation of the center frequency of the carrier closest to the interferer and the center frequency of the interferer
NRB Transmission bandwidth configuration, expressed in units of resource blocks
NREF NR Absolute Radio Frequency Channel Number (NR-ARFCN)
NREF-Offs Offset used for calculating NREF
PInterferer Modulated mean power of the interferer
Puw Power of an unwanted DL signal
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP 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 3GPP TR 21.905 [1].
ACLR Adjacent Channel Leakage Ratio
ACS Adjacent Channel Selectivity
A-MPR Additional Maximum Power Reduction
BW Bandwidth
BWP Bandwidth Part
CP-OFDM Cyclic Prefix-OFDM
CW Continuous Wave
DFT-s-OFDM Discrete Fourier Transform-spread-OFDM
DM-RS Demodulation Reference Signal
DTX Discontinuous Transmission
EIRP Equivalent Isotropically Radiated Power
EVM Error Vector Magnitude
FR Frequency Range
FRC Fixed Reference Channel
GEO Geosynchronous Earth Orbit
GSCN Global Synchronization Channel Number
IBB In-band Blocking
ITU-R Radiocommunication Sector of the International Telecommunication Union
LEO Low Earth Orbiting
MBW Measurement bandwidth defined for the protected band
MEO Medium Earth Orbiting
MOP Maximum Output Power
MPR Allowed maximum power reduction
MSD Maximum Sensitivity Degradation
NGEO Non-Geostationary Earth Orbiting
NR New Radio
NR-ARFCN NR Absolute Radio Frequency Channel Number
NS Network Signalling
NTN Non-Terrestrial Network
OCNG OFDMA Channel Noise Generator
OOB Out-of-band
PRB Physical Resource Block
QAM Quadrature Amplitude Modulation
RAN Radio Access Network
RE Resource Element
REFSENS REFerence SENSitivity
RF Radio Frequency
RMS Root Mean Square (value)
RSRP Reference Signal Receive Power
RSRQ Reference Signal Receive Quality
RX Receiver
SAN Satellite Access Node
SC Single Carrier
SCS Subcarrier spacing
SEM Spectrum Emission Mask
SNR Signal-to-Noise Ratio
SRS Sounding Reference Symbol
SS Synchronization Symbol
TN Terrestrial Network
TX Transmitter
TxD Tx Diversity
UE User Equipment