3 Definitions, symbols and abbreviations
37.1043GPPMulti-Standard Radio (MSR) Base Station (BS) radio transmission and receptionNR, E-UTRA, UTRA and GSM/EDGERelease 17TS
3.1 Definitions
For the purposes of the present document, the terms and definitions given in 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 TR 21.905 [1].
Band category: group of operating bands for which the same MSR scenarios apply
Base Station RF Bandwidth: bandwidth in which a base station transmits and/or receives single or multiple carrier(s) and/or RATs simultaneously within a supported operating band
NOTE: In single carrier operation, the Base Station RF Bandwidth is equal to the channel bandwidth.
Base Station RF Bandwidth edge: frequency of one of the edges of the Base Station RF Bandwidth
Carrier: modulated waveform conveying the NR, E-UTRA, UTRA or GSM/EDGE physical channels
Carrier aggregation: aggregation of two or more NR or E-UTRA component carriers in order to support wider transmission bandwidths
Carrier aggregation band: set of one or more operating bands across which multiple E-UTRA carriers are aggregated with a specific set of technical requirements.
Channel bandwidth: RF bandwidth supporting a single NR, E-UTRA, UTRA or GSM/EDGE RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell.
NOTE: The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF requirements.
NOTE: The term channel bandwidth is referred to as BS channel bandwidth in the NR specifications, since for NR the BS and UE may operate with differing bandwidths.
Contiguous carriers: set of two or more carriers configured in a spectrum block where there are no RF requirements based on co-existence for un-coordinated operation within the spectrum block.
Carrier power: power at the antenna connector in the channel bandwidth of the carrier averaged over at least one subframe for NR or E-UTRA, at least one slot for UTRA and the useful part of the burst for GSM/EDGE.
Configured carrier power: target maximum power for a specific carrier for the operating mode set in the base station
Contiguous spectrum: spectrum consisting of a contiguous block of spectrum with no sub-block gap(s).
Downlink operating band: part of the operating band designated for downlink.
Highest Carrier: carrier with the highest carrier centre frequency transmitted/received in the specified operating band(s).
Inter RF Bandwidth gap: frequency gap between two consecutive Base Station RF Bandwidths that are placed within two supported operating bands.
Inter-band carrier aggregation: carrier aggregation of NR or E-UTRA component carriers in different operating bands.
NOTE: Carriers aggregated in each band can be contiguous or non-contiguous.
Inter-band gap: The frequency gap between two supported consecutive operating bands.
Intra-band contiguous carrier aggregation: contiguous NR or E-UTRA carriers aggregated in the same operating band.
Intra-band non-contiguous carrier aggregation: non-contiguous NR or E-UTRA carriers aggregated in the same operating band.
Lowest Carrier: carrier with the lowest carrier centre frequency transmitted/received in the specified operating band(s).
Lower Base Station RF Bandwidth edge: frequency of the lower edge of the Base Station RF bandwidth, used as a frequency reference point for transmitter and receiver requirements.
Lower sub-block edge: frequency at the lower edge of one sub-block.
NOTE: It is used as a frequency reference point for both transmitter and receiver requirements.
Maximum Base Station RF Bandwidth: maximum RF bandwidth supported by a BS within each supported operating band.
NOTE: The maximum Base Station RF Bandwidth for BS configured for contiguous and non-contiguous operation within each supported operating band is declared separately.
Maximum carrier output power: carrier power available at the antenna connector for a specified reference condition.
Maximum RAT output power: sum of the power of all carriers of the same RAT available at the antenna connector for a specified reference condition.
Maximum throughput: maximum achievable throughput for a reference measurement channel.
Maximum total output power: sum of the power of all carriers available at the antenna connector for a specified reference condition.
MB-MSR Base Station: MSR Base Station characterized by the ability of its transmitter and/or receiver to process two or more carriers in common active RF components simultaneously, where at least one carrier is configured at a different operating band (which is not a sub-band or superseding-band of another supported operating band) than the other carrier(s).
Measurement bandwidth: RF bandwidth in which an emission level is specified.
MSR Base station: base station characterized by the ability of its receiver and transmitter to process two or more carriers in common active RF components simultaneously in a declared Base Station RF Bandwidth, where at least one carrier is of a different RAT than the other carrier(s).
Multi-band transmitter: transmitter characterized by the ability to process two or more carriers in common active RF components simultaneously, where at least one carrier is configured at a different operating band (which is not a sub-band or superseding-band of another supported operating band) than the other carrier(s).
Multi-band receiver: receiver characterized by the ability to process two or more carriers in common active RF components simultaneously, where at least one carrier is configured at a different operating band (which is not a sub-band or superseding-band of another supported operating band) than the other carrier(s).
Non-contiguous spectrum: spectrum consisting of two or more sub-blocks separated by sub-block gap(s).
NB-IoT In-band operation: NB-IoT is operating in-band when it utilizes the resource block(s) within a normal E-UTRA carrier.
NB-IoT guard band operation: NB-IoT is operating in guard band when it utilizes the unused resource block(s) within a E-UTRA carrier’s guard-band.
NB-IoT standalone operation: NB-IoT is operating standalone when it utilizes its own spectrum, for example the spectrum currently being used by GERAN systems as a replacement of one or more GSM carriers, as well as scattered spectrum for potential IoT deployment.
NB-IoT operation in NR in-band: NB-IoT is operating in-band when it is located within a NR transmission bandwidth configuration plus 15 kHz at each edge but not within the NR minimum guard band GBChannel.
NB-IoT operation in NR guard band: NB-IoT is operating in guard band when it is located within a NR BS channel bandwidth but is not NB-IoT operation in NR in-band.
Occupied bandwidth: width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission.
Operating band: frequency range in which NR, E-UTRA, UTRA or GSM/EDGE operates (paired or unpaired), that is defined with a specific set of technical requirements.
NOTE: The operating band(s) for a BS is declared by the manufacturer.
Radio Bandwidth: frequency difference between the upper edge of the highest used carrier and the lower edge of the lowest used carrier.
Rated total output power: The total power level that the manufacturer has declared to be available at the antenna connector.
RRC filtered mean power: The mean power of a UTRA carrier as measured through a root raised cosine filter with roll-off factor and a bandwidth equal to the chip rate of the radio access mode.
NOTE: The RRC filtered mean power of a perfectly modulated UTRA signal is 0.246 dB lower than the mean power of the same signal
Single-RAT operation: operation of a base station in an operating band with only one RAT configured in that operating band.
Sub-band: A sub-band of an operating band contains a part of the uplink and downlink frequency range of the operating band.
Sub-block: one contiguous allocated block of spectrum for use by the same base station.
NOTE: There may be multiple instances of sub-blocks within a Base Station RF Bandwidth.
Sub-block bandwidth: RF bandwidth of one sub-block.
Sub-block gap: frequency gap between two consecutive sub-blocks within a Base Station RF Bandwidth, where the RF requirements in the gap are based on co-existence for un-coordinated operation.
Superseding-band: A superseding-band of an operating band includes the whole of the uplink and downlink frequency range of the operating band.
Synchronized operation: operation of TDD in two different systems, where no simultaneous uplink and downlink occur.
Throughput: number of payload bits successfully received per second for a reference measurement channel in a specified reference condition.
Transmission bandwidth: RF bandwidth of an instantaneous E-UTRA or NR transmission from a UE or BS, measured in resource block units.
Transmitter ON period: time period during which the BS transmitter is transmitting data and/or reference symbols
Transmitter OFF period: time period during which the BS transmitter is not allowed to transmit
Transmitter transient period: time period during which the transmitter is changing from the OFF period to the ON period or vice versa
Unsynchronized operation: operation of TDD in two different systems, where the conditions for synchronized operation are not met.
Uplink operating band: part of the operating band designated for uplink.
Upper Base Station RF Bandwidth edge: frequency of the upper edge of the Base Station RF Bandwidth, used as a frequency reference point for transmitter and receiver requirements
Upper sub-block edge: frequency at the upper edge of one sub-block.
NOTE: It is used as a frequency reference point for both transmitter and receiver requirements.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Percentage of the mean transmitted power emitted outside the occupied bandwidth on the assigned channel
BWChannel Channel bandwidth (for E-UTRA and NR)
BWConfig Transmission bandwidth configuration (for E-UTRA), where BWConfig = NRB x 180 kHz in the uplink and BWConfig = 15 kHz + NRB x 180 kHz in the downlink. Transmission bandwidth configuration (for NR), where BWConfig = NRB x SCS x 12.
BWRF Base Station RF Bandwidth, where BWRF = FBW RF,high – FBW RF,low
BWRF,max Maximum Base Station RF Bandwidth
DwPTS Downlink part of the special subframe (for E-UTRA TDD operation)
f Frequency
Δf Separation between the Base Station RF Bandwidth edge frequency and the nominal -3dB point of the measuring filter closest to the carrier frequency
Δfmax The largest value of Δf used for defining the requirement
ΔfOBUE Maximum offset of the operating band unwanted emissions mask from the downlink operating band edge
ΔfOOB Maximum offset of the out-of-band boundary from the uplink operating band edge
FC Carrier centre frequency
Ffilter Filter centre frequency
f_offset Separation between the Base Station RF Bandwidth edge frequency and the centre of the measuring filter
f_offsetmax The maximum value of f_offset used for defining the requirement
Fblock,high Upper sub-block edge, where Fblock,high = FC,block,high + Foffset, RAT
Fblock,low Lower sub-block edge, where Fblock,low = FC,block,low – Foffset, RAT
FBW RF,high Upper Base Station RF Bandwidth edge, where FBW RF,high = FC,high + Foffset, RAT
FBW RF,low Lower Base Station RF Bandwidth edge, where FBW RF,low = FC,low – Foffset, RAT
FC band, high Center frequency of the highest transmitted/received carrier in a band.
FC band, low Center frequency of the lowest transmitted/received carrier in a band.
FC,block, high Centre frequency of the highest transmitted/received carrier in a sub-block.
FC,block, low Centre frequency of the lowest transmitted/received carrier in a sub-block.
FC,high Centre frequency of the highest transmitted/received carrier.
FC,low Centre frequency of the lowest transmitted/received carrier.
Foffset, RAT Frequency offset from the centre frequency of the highest transmitted/received carrier to the upper Base Station RF Bandwidth edge, sub-block edge or Inter-RF Bandwidth edge, or from the centre frequency of the lowest transmitted/received to the lower Base Station RF Bandwidth edge, sub-block edge or Inter-RF Bandwidth edge for a specific RAT.
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
GBChannel Minimum guard band defined in subclause 5.3.3 of TS 38.104 [17]
PEM,N Declared emission level for channel N
PEM,B32,B75,B76,ind Declared emission level in Band 32, Band 75 and Band 76, ind=a, b, c
PEM,B32,ind Declared emission level in Band 32, ind= d, e
PEM,B50,B74,B75,ind Declared emission level for Band 50, Band 74 and Band 75, ind=a,b
Pmax Maximum total output power
Pmax,RAT Maximum RAT output power
Pmax,c Maximum carrier output power
PRated,c Rated carrier output power
PREFSENS Reference Sensitivity power level
Wgap Sub-block gap or Inter RF Bandwidth gap size
Figure 3.2-1: Illustration of Base Station RF Bandwidth related symbols and definitions for Multi-Standard Radio.
Figure 3.2-2: Illustration of Base Station RF Bandwidth related symbols and definitions for non-contiguous Multi-Standard Radio.
Figure 3.2-3: Illustration of Radio Bandwidth related symbols and definitions for Multi-band Multi-standard Radio (Dual-band Base Station)
3.3 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].
ACLR Adjacent Channel Leakage Ratio
ACS Adjacent Channel Selectivity
ARFCN Absolute Radio Frequency Channel Number
AWGN Additive White Gaussian Noise
BC Band Category
BER Bit Error Ratio
BS Base Station
BTS Base Transceiver Station
CA Carrier Aggregation
CACLR Cumulative Adjacent Channel Leakage Ratio
CP Cyclic prefix
CW Continuous Wave
DB-DC-HSDPA Dual Band Dual Cell HSDPA
DC-HSDPA Dual Cell HSDPA
DC-HSUPA Dual Cell HSUPA
DTT Digital Terrestrial Television
EARFCN E-UTRA Absolute Radio Frequency Channel Number
EDGE Enhanced Data rates for GSM Evolution
EIRP Effective Isotropic Radiated Power
EVM Error Vector Magnitude
FCC Federal Communications Commission
FDD Frequency Division Duplex
FR Frequency Range
FRC Fixed Reference Channel
GP Guard Period (for E-UTRA TDD operation)
GSM Global System for Mobile Communications
HSDPA High Speed Downlink Packet Access
HSUPA High Speed Uplink Packet Access
ICS In-Channel Selectivity
ITU‑R Radiocommunication Sector of the ITU
LA Local Area
LNA Low Noise Amplifier
MB-MSR Multi-Band Multi-Standard Radio
MFCN Mobile/Fixed Communications Network
MIMO Multiple Input Multiple Output
MR Medium Range
MS Mobile Station
MSR Multi-Standard Radio
NB-IoT Narrowband – Internet of Things
NR New Radio
NR-ARFCN NR Absolute Radio Frequency Channel Number
NRS Narrowband Reference Signal
OBUE Operating Band Unwanted Emissions
PA Power Amplifier
PHS Personal Handyphone System
QPSK Quadrature Phase-Shift Keying
RAT Radio Access Technology
RB Resource Block (for E-UTRA and NR)
RF Radio Frequency
RMS Root Mean Square (value)
RS Reference Symbol
RX Receiver
SCS Sub-Carrier Spacing
SNR Signal-to-Noise Ratio
TDD Time Division Duplex
TX Transmitter
UARFCN UTRA Absolute Radio Frequency Channel Number
UE User Equipment
UEM operating band Unwanted Emissions Mask
WA Wide Area