3 Definitions, symbols and abbreviations

36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception

3.1 Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 [1] and the following apply in the case of a single component carrier. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [1].

Aggregated Channel Bandwidth: The RF bandwidth in which a UE transmits and receives multiple contiguously aggregated carriers.

Aggregated Transmission Bandwidth Configuration: The number of resource block allocated within the aggregated channel bandwidth.

Carrier aggregation: Aggregation of two or more component carriers in order to support wider transmission bandwidths.

Carrier aggregation band: A set of one or more operating bands across which multiple carriers are aggregated with a specific set of technical requirements.

Carrier aggregation bandwidth class: A class defined by the aggregated transmission bandwidth configuration and maximum number of component carriers supported by a UE.

Carrier aggregation configuration: A combination of CA operating band(s) and CA bandwidth class(es) supported by a UE.

Channel edge: The lowest and highest frequency of the carrier, separated by the channel bandwidth.

Channel bandwidth: The RF bandwidth supporting a single E-UTRA RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF requirements.

Composite spectrum emission mask: Emission mask requirement for intraband non-contiguous carrier aggregation which is a combination of individual sub-block spectrum emissions masks.

Composite spurious emission requirement: Spurious emission requirement for intraband non-contiguous carrier aggregation which is a combination of individual sub-block spurious emission requirements.

Contiguous carriers: A 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.

Contiguous resource allocation: A resource allocation of consecutive resource blocks within one carrier or across contiguously aggregated carriers. The gap between contiguously aggregated carriers due to the nominal channel spacing is allowed.

Contiguous spectrum: Spectrum consisting of a contiguous block of spectrum with no sub-block gaps.

Enhanced downlink control channel performance requirements type A: This defines performance requirements for downlink control channel assuming as baseline receiver reference symbol based linear minimum mean square error interference rejection combining plus CRS interference cancellation.

Enhanced downlink control channel performance requirements type B: This defines performance requirements for downlink control channel assuming as baseline receiver reference symbol based enhanced linear minimum mean square error interference rejection combining plus CRS interference cancellation.

Enhanced performance requirements type A: This defines performance requirements assuming as baseline receiver reference symbol based linear minimum mean square error interference rejection combining.

Enhanced performance requirements type B: This defines performance requirements assuming as baseline receiver using network assisted interference cancelation and suppression.

Enhanced performance requirements type C: This defines performance requirements assuming as baseline receiver inter-stream interference cancellation.

Inter-band carrier aggregation: Carrier aggregation of component carriers in different operating bands.

NOTE: Carriers aggregated in each band can be contiguous or non-contiguous.

Intra-band contiguous carrier aggregation: Contiguous carriers aggregated in the same operating band.

Intra-band non-contiguous carrier aggregation: Non-contiguous carriers aggregated in the same operating band.

Lower sub-block edge: The frequency at the lower edge of one sub-block. It is used as a frequency reference point for both transmitter and receiver requirements.

Category NB1/NB2 stand-alone operation: category NB1/NB2 is operating standalone when it utilizes its own spectrum, for example the spectrum used by GERAN systems as a replacement of one or more GSM carriers, as well as scattered spectrum for potential IoT deployment.

Category NB1/NB2 guard band operation: category NB1/NB2 is operating in guard band when it utilizes the unused resource block(s) within a E-UTRA carrier’s guard-band.

Category NB1/NB2 in-band operation: category NB1/NB2 is operating in-band when it utilizes the resource block(s) within a normal E-UTRA carrier or within a normal NR carrier plus 15 kHz at each edge (and not within NR minimum guard band).

Non-contiguous spectrum: Spectrum consisting of two or more sub-blocks separated by sub-block gap(s).

ProSe-enabled UE: A UE that supports ProSe requirements and associated procedures.

NOTE: As defined in TS 23.303 [10].

ProSe Direct Communication: A communication between two or more UEs in proximity that are ProSe-enabled.

NOTE: As defined in TS 23.303 [10].

ProSe Direct Discovery: A procedure employed by a ProSe-enabled UE to discover other ProSe-enabled UEs in its vicinity.

NOTE: As defined in TS 23.303 [10].

sTTI : A transmission time interval (TTI) of either one slot or one subslot as defined in TS 36.211 [4] on either uplink or downlink.

Sub-block: This is one contiguous allocated block of spectrum for transmission and reception by the same UE. There may be multiple instances of sub-blocks within an RF bandwidth.

Sub-block bandwidth: The bandwidth of one sub-block.

Sub-block gap: A frequency gap between two consecutive sub-blocks within an RF bandwidth, where the RF requirements in the gap are based on co-existence for un-coordinated operation.

Synchronized operation: Operation of TDD in two different systems, where no simultaneous uplink and downlink occur.

Unsynchronized operation: Operation of TDD in two different systems, where the conditions for synchronized operation are not met.

Upper sub-block edge: The frequency at the upper edge of one sub-block. It is used as a frequency reference point for both transmitter and receiver requirements.

V2X Communication: V2X (Vehicle to Everything) service is operating in ITS spectrum and/or LTE licensed operating bands.

3.2 Symbols

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

BW_Channel Channel bandwidth

BW_{Channel,block} Sub-block bandwidth, expressed in MHz. BW_{Channel,block}= F_{edge,block,high}– F_{edge,block,low.}

BW_{Channel_CA} Aggregated channel bandwidth, expressed in MHz.

BW_GB Virtual guard band to facilitate transmitter (receiver) filtering above / below edge CCs.

Transmitted energy per RE for reference symbols during the useful part of the symbol, i.e. excluding the cyclic prefix, (average power normalized to the subcarrier spacing) at the eNode B transmit antenna connector

The averaged received energy per RE of the wanted signal during the useful part of the symbol, i.e. excluding the cyclic prefix, at the UE antenna connector; average power is computed within a set of REs used for the transmission of physical channels (including user specific RSs when present), divided by the number of REs within the set, and normalized to the subcarrier spacing

F Frequency

F_{agg_alloc_low} Aggregated Transmission Bandwidth Configuration. The lowest frequency of the simultaneously transmitted resource blocks.

F_{agg_alloc_high} Aggregated Transmission Bandwidth Configuration. The highest frequency of the simultaneously transmitted resource blocks.

F_Interferer (offset) Frequency offset of the interferer (between the center frequency of the interferer and the carrier frequency of the carrier measured)

F_Interferer Frequency of the interferer

F_Ioffset Frequency offset of the interferer (between the center frequency of the interferer and the closest edge of the carrier measured)

F_C Frequency of the carrier centre frequency

F_{C_agg} Aggregated Transmission Bandwidth Configuration. Center frequency of the aggregated carriers.

F_{C,block, high} Center frequency of the highest transmitted/received carrier in a sub-block.

F_{C,block, low} Center frequency of the lowest transmitted/received carrier in a sub-block.

F_{C_low} The centre frequency of the lowest carrier, expressed in MHz.

F_{C_high} The centre frequency of the highest carrier, expressed in MHz.

F_{DL_low} The lowest frequency of the downlink operating band

F_{DL_high} The highest frequency of the downlink operating band

F_{UL_low} The lowest frequency of the uplink operating band

F_{UL_high} The highest frequency of the uplink operating band

F_{edge,block,low} The lower sub-block edge, where F_{edge,block,low} = F_C,block,low – F_offset.

F_{edge,block,high} The upper sub-block edge, where F_{edge,block,high} = F_C,block,high + F_offset.

F_{edge_low} The lower edge of aggregated channel bandwidth, expressed in MHz.

F_{edge_high} The higher edge of aggregated channel bandwidth, expressed in MHz.

F_offset Frequency offset from F_{C_high} to the higher edge or F_{C_low} to the lower edge.

F_{offset,block,low} Separation between lower edge of a sub-block and the center of the lowest component carrier within the sub-block

F_{offset,block,high} Separation between higher edge of a sub-block and the center of the highest component carrier within the sub-block

F_{offset_NS_23} Frequency offset in MHz needed if NS_23 is used

F_OOB The boundary between the E-UTRA out of band emission and spurious emission domains.

The power spectral density of the total input signal (power averaged over the useful part of the symbols within the transmission bandwidth configuration, divided by the total number of RE for this configuration and normalised to the subcarrier spacing) at the UE antenna connector, including the own-cell downlink signal

The total transmitted power spectral density of the own-cell downlink signal (power averaged over the useful part of the symbols within the transmission bandwidth configuration, divided by the total number of RE for this configuration and normalised to the subcarrier spacing) at the eNode B transmit antenna connector

The total received power spectral density of the own-cell downlink signal (power averaged over the useful part of the symbols within the transmission bandwidth configuration, divided by the total number of RE for this configuration and normalised to the subcarrier spacing) at the UE antenna connector

The received power spectral density of the total noise and interference for a certain RE (average power obtained within the RE and normalized to the subcarrier spacing) as measured at the UE antenna connector

L_CRB Transmission bandwidth which represents the length of a contiguous resource block allocation expressed in units of resources blocks

L_Ctone Transmission bandwidth which represents the length of a contiguous sub-carrier allocation expressed in units of tones

N_cp Cyclic prefix length

N_DL Downlink EARFCN

The power spectral density of a white noise source (average power per RE normalised to the subcarrier spacing), simulating interference from cells that are not defined in a test procedure, as measured at the UE antenna connector

The power spectral density of a white noise source (average power per RE normalized to the subcarrier spacing), simulating interference in non-CRS symbols in ABS subframe from cells that are not defined in a test procedure, as measured at the UE antenna connector.

The power spectral density of a white noise source (average power per RE normalized to the subcarrier spacing), simulating interference in CRS symbols in ABS subframe from all cells that are not defined in a test procedure, as measured at the UE antenna connector.

The power spectral density of a white noise source (average power per RE normalised to the subcarrier spacing), simulating interference in non-ABS subframe from cells that are not defined in a test procedure, as measured at the UE antenna connector

The power spectral density (average power per RE normalised to the subcarrier spacing) of the summation of the received power spectral densities of the strongest interfering cells explicitly defined in a test procedure plus , as measured at the UE antenna connector. The respective power spectral density of each interfering cell relative to is defined by its associated DIP value, or the respective power spectral density of each interfering cell relative to is defined by its associated Es/Noc value.

N_Offs-DL Offset used for calculating downlink EARFCN

N_Offs-UL Offset used for calculating uplink EARFCN

The power spectral density of a white noise source (average power per RE normalised to the subcarrier spacing) simulating eNode B transmitter impairments as measured at the eNode B transmit antenna connector

N_RB Transmission bandwidth configuration, expressed in units of resource blocks

N_{RB_agg} The number of the aggregated RBs within the fully allocated Aggregated Channel bandwidth.

N_{RB_alloc} Total number of simultaneously transmitted resource blocks in Channel bandwidth or Aggregated Channel Bandwidth.

N_RB,c The transmission bandwidth configuration of component carrier c, expressed in units of resource blocks

N_{RB,largest BW} The largest transmission bandwidth configuration of the component carriers in the bandwidth combination, expressed in units of resource blocks

N_RX Number of receiver antennas

N_tone Transmission bandwidth configuration for category NB1 and NB2, expressed in units of tones.

N_{tone 3.75kHz} Transmission bandwidth configuration for category NB1 and NB2 with 3.75 kHz sub-carrier spacing, expressed in units of tones.

N_{tone 15kHz} Transmission bandwidth configuration for category NB1 and NB2 with 15 kHz sub-carrier spacing, expressed in units of tones.

N_UL Uplink EARFCN.

Rav Minimum average throughput per RB.

P_CMAX The configured maximum UE output power.

P_CMAX, _c The configured maximum UE output power for serving cell c.

P_EMAX Maximum allowed UE output power signalled by higher layers. Same as IE P-Max, defined in [7].

P_{EMAX, c} Maximum allowed UE output power signalled by higher layers for serving cell c. Same as IE
P-Max, defined in [7].

P_Interferer Modulated mean power of the interferer

P_PowerClass P_PowerClass is the nominal UE power (i.e., no tolerance).

P_{PowerClass_Default} P_{PowerClass_Default} is the default nominal UE power (i.e., no tolerance) for the band.

P_UMAX The measured configured maximum UE output power.

Puw Power of an unwanted DL signal

Pw Power of a wanted DL signal

RB_start Indicates the lowest RB index of transmitted resource blocks.

RB_end Indicates the highest RB index of transmitted resource blocks.

T_{no_hopping} Transmission period within a TTI duration when consecutive symbols are transmitted without applying any frequency hopping

Δf_OOB Δ Frequency of Out Of Band emission.

ΔP_PowerClass Adjustment to maximum output power for a given power class.

ΔR_IB,c Allowed reference sensitivity relaxation due to support for inter-band CA operation, for serving cell c.

ΔR_IB,4R Reference sensitivity adjustment due to support for 4 antenna ports.

ΔR_IB,8R Reference sensitivity adjustment due to support for 8 antenna ports.

ΔT_IB,c Allowed maximum configured output power relaxation due to support for inter-band CA operation, for serving cell c.

T_C Allowed operating band edge transmission power relaxation.

T_C,c Allowed operating band edge transmission power relaxation for serving cell c.

T_ProSe Allowed operating band transmission power relaxation due to support of E-UTRA ProSe on an operating band.

According to Clause 5.2 in TS 36.213 [6]

According to Clause 5.2 in TS 36.213 [6]

σ Test specific auxiliary variable used for the purpose of downlink power allocation, defined in Annex C.3.2.

W_gap Sub-block gap size

W_{gap_L} Sub-block gap size between lowest two CCs in frequency domain on CA_X-X-X

W_{gap_H} Sub-block gap size between highest two CCs in frequency domain on CA_X-X-X

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].

ABS Almost Blank Subframe

ACLR Adjacent Channel Leakage Ratio

ACS Adjacent Channel Selectivity

A-MPR Additional Maximum Power Reduction

AWGN Additive White Gaussian Noise

BS Base Station

CA Carrier Aggregation

CA_X Intra-band contiguous CA of component carriers in one sub-block within Band X where X is the applicable E-UTRA operating band

CA_X-X Intra-band non-contiguous CA of component carriers in two sub-blocks within Band X where X is the applicable E-UTRA operating band

CA_X-X-X Intra-band non-contiguous CA of component carriers in three sub-blocks within Band X where X is the applicable E-UTRA operating band

CA_X-X-X-X Intra-band non-contiguous CA of component carriers in four sub-blocks within Band X where X is the applicable E-UTRA operating band

CA_X-Y Inter-band CA of component carrier(s) in one sub-block within Band X and component carrier(s) in one sub-block within Band Y where X and Y are the applicable E-UTRA operating band

CA_X-X-Y CA of component carriers in two sub-blocks within Band X and component carrier(s) in one sub-block within Band Y where X and Y are the applicable E-UTRA operating bands

CC Component Carriers

CG Carrier Group

CPE Customer Premise Equipment

CPE_X Customer Premise Equipment for E-UTRA operating band X

CW Continuous Wave

DC Dual Connectivity

DC_X-Y Inter-band DC of component carrier(s) in one sub-block within Band X and component carrier(s) in one sub-block within Band Y where X and Y are the applicable E-UTRA operating band

DL Downlink

DIP Dominant Interferer Proportion

EARFCN E-UTRA Absolute Radio Frequency Channel Number

EIRP Effective Isotropic Radiated Power

EPRE Energy Per Resource Element

E-UTRA Evolved UMTS Terrestrial Radio Access

EUTRAN Evolved UMTS Terrestrial Radio Access Network

EVM Error Vector Magnitude

FDD Frequency Division Duplex

FRC Fixed Reference Channel

GNSS Global Navigation Satellite Systems

HD Half-Duplex for Sidelink Operation

HD-FDD Half- Duplex FDD

ITS Intelligent Transportation Systems

MCS Modulation and Coding Scheme

MCG Master Cell Group

MOP Maximum Output Power

MPR Maximum Power Reduction

MSD Maximum Sensitivity Degradation

OCNG OFDMA Channel Noise Generator

OFDMA Orthogonal Frequency Division Multiple Access

OOB Out-of-band

PA Power Amplifier

PCC Primary Component Carrier

P-MPR Power Management Maximum Power Reduction

ProSe Proximity-based Services

PSBCH Physical Sidelink Broadcast CHannel

PSCCH Physical Sidelink Control CHannel

PSDCH Physical Sidelink Discovery CHannel

PSS Primary Synchronization Signal

PSS_RA PSS-to-RS EPRE ratio for the channel PSS

SSSS Secondary Sidelink Synchronization Signal

PSSCH Physical Sidelink Shared CHannel

PSSS Primary Sidelink Synchronization Signal

RE Resource Element

REFSENS Reference Sensitivity power level

r.m.s Root Mean Square

SCC Secondary Component Carrier

SCG Secondary Cell Group

SINR Signal-to-Interference-and-Noise Ratio

SNR Signal-to-Noise Ratio

SSS Secondary Synchronization Signal

SSS_RA SSS-to-RS EPRE ratio for the channel SSSSSSS Secondary Sidelink Synchronization Signal

TDD Time Division Duplex

UE User Equipment

UL Uplink

UL-MIMO Up Link Multiple Antenna transmission

UMTS Universal Mobile Telecommunications System

UTRA UMTS Terrestrial Radio Access

UTRAN UMTS Terrestrial Radio Access Network

V2X Vehicle to Everything

xCH_RA xCH-to-RS EPRE ratio for the channel xCH in all transmitted OFDM symbols not containing cell-specific RS

xCH_RB xCH-to-RS EPRE ratio for the channel xCH in all transmitted OFDM symbols containing cell-specific RS