Content for TS 38.104 Word version: 18.3.0

1… 4… 5… 5.3… 5.3A… 5.4… 6… 7… 8… 9… 10… 11… A…

3.1 Definitions 3.2 Symbols 3.3 Abbreviations
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1 Scope p. 15

The present document establishes the minimum RF characteristics and minimum performance requirements of NR and NB-IoT operation in NR in-band Base Station (BS).

2 References p. 15

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]

ITU-R Recommendation SM.329: "Unwanted emissions in the spurious domain".

[3]

Recommendation ITU-R SM.328: "Spectra and bandwidth of emissions".

[4]

TR 25.942: "RF system scenarios".

[5]

TS 38.141-1: "NR; Base Station (BS) conformance testing; Part 1: Conducted conformance testing".

[6]

TS 38.141-2: "NR; Base Station (BS) conformance testing; Part 2: Radiated conformance testing".

[7]

Recommendation ITU-R M.1545: "Measurement uncertainty as it applies to test limits for the terrestrial component of International Mobile Telecommunications-2000".

[8]

"Title 47 of the Code of Federal Regulations (CFR)", Federal Communications Commission.

[9]

TS 38.211: "NR; Physical channels and modulation".

[10]

TS 38.213: "NR; Physical layer procedures for control".

[11]

TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".

[12]

ECC/DEC/(17)06: "The harmonised use of the frequency bands 1427-1452 MHz and 1492-1518 MHz for Mobile/Fixed Communications Networks Supplemental Downlink (MFCN SDL)"

[13]

TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio transmission and reception".

[14]

TS 37.105: "Active Antenna System (AAS) Base Station (BS) transmission and reception".

[15]

TS 38.212: "NR; Multiplexing and channel coding".

[16]

TR 38.901: "Study on channel model for frequencies from 0.5 to 100 GHz"

[17]

TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone".

[18]

TS 38.101-2: "NR; User Equipment (UE) radio transmission and reception; Part 2: Range 2 Standalone"

[19]

ERC Recommendation 74-01, "Unwanted emissions in the spurious domain".

[20]

TS 37.213: "Physical layer procedures for shared spectrum channel access".

[21]

ECC Decision(20)02: "Harmonised use of the paired frequency bands 874.4-880.0 MHz and 919.4-925.0 MHz and of the unpaired frequency band 1900-1910 MHz for Railway Mobile Radio (RMR)".

[22]

TR 38.852: Introduction of 1900MHz NR band for Europe for Rail Mobile Radio (RMR).

[23]

TR 38.853: Introduction of 900MHz NR band for Europe for Rail Mobile Radio (RMR).

[24]

FCC Report And Order And Further Notice Of Proposed Rulemaking FCC 20-51, April 2020.

3 Definitions, symbols and abbreviations p. 16

3.1 Definitions p. 16

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.

Aggregated BS Channel Bandwidth:

The RF bandwidth in which a Base Station transmits and receives multiple contiguously aggregated carriers. The aggregated BS channel bandwidth is measured in MHz.

antenna connector:

connector at the conducted interface of the BS type 1-C.

active transmitter unit:

transmitter unit which is ON, and has the ability to send modulated data streams that are parallel and distinct to those sent from other transmitter units to a BS type 1-C antenna connector, or to one or more BS type 1-H TAB connectors at the transceiver array boundary.

Base Station RF Bandwidth:

RF bandwidth in which a base station transmits and/or receives single or multiple carrier(s) within a supported operating band.

Base Station RF Bandwidth edge:

frequency of one of the edges of the Base Station RF Bandwidth.

basic limit:

emissions limit relating to the power supplied by a single transmitter to a single antenna transmission line in ITU-R SM.329 [2] used for the formulation of unwanted emission requirements for FR1

beam:

beam (of the antenna) is the main lobe of the radiation pattern of an antenna array.

beam centre direction:

direction equal to the geometric centre of the half-power contour of the beam.

beam direction pair:

data set consisting of the beam centre direction and the related beam peak direction.

beam peak direction:

direction where the maximum EIRP is found.

beamwidth:

beam which has a half-power contour that is essentially elliptical, the half-power beamwidths in the two pattern cuts that respectively contain the major and minor axis of the ellipse.

BS channel bandwidth:

RF bandwidth supporting a single NR RF carrier with the transmission bandwidth configured in the uplink or downlink.

BS transmission bandwidth configuration:

set of resource blocks located within the BS channel bandwidth which may be used for transmitting or receiving by the BS.

BS type 1-C:

NR base station operating at FR1 with requirements set consisting only of conducted requirements defined at individual antenna connectors.

BS type 1-H:

NR base station operating at FR1 with a requirement set consisting of conducted requirements defined at individual TAB connectors and OTA requirements defined at RIB.

BS type 1-O:

NR base station operating at FR1 with a requirement set consisting only of OTA requirements defined at the RIB.

BS type 2-O:

NR base station operating at FR2 with a requirement set consisting only of OTA requirements defined at the RIB.

Channel edge:

lowest or highest frequency of the NR carrier, separated by the BS channel bandwidth.

Carrier aggregation:

aggregation of two or more component carriers in order to support wider transmission bandwidths

Carrier aggregation configuration:

a set of one or more operating bands across which the BS aggregates carriers with a specific set of technical requirements

co-location reference antenna:

a passive antenna used as reference for base station to base station co-location requirements

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.

Contiguous spectrum:

spectrum consisting of a contiguous block of spectrum with no sub-block gap(s).

directional requirement:

requirement which is applied in a specific direction within the OTA coverage range for the Tx and when the AoA of the incident wave of a received signal is within the OTA REFSENS RoAoA or the minSENS RoAoA as appropriate for the receiver

equivalent isotropic radiated power:

equivalent power radiated from an isotropic directivity device producing the same field intensity at a point of observation as the field intensity radiated in the direction of the same point of observation by the discussed device

equivalent isotropic sensitivity:

sensitivity for an isotropic directivity device equivalent to the sensitivity of the discussed device exposed to an incoming wave from a defined AoA

fractional bandwidth:

fractional bandwidth FBW is defined as FBW = 200 ∙(F_FBWhigh-F_FBWlow)/(F_FBWhigh+F_FBWlow )%

Highest Carrier:

The carrier with the highest carrier frequency transmitted/received in a specified frequency band.

Inter-band carrier aggregation:

carrier aggregation of component carriers in different operating bands.

Inter-band gap:

The frequency gap between two supported consecutive operating bands.

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.

Inter RF Bandwidth gap:

frequency gap between two consecutive Base Station RF Bandwidths that are placed within two supported operating bands

Lowest Carrier:

The carrier with the lowest carrier frequency transmitted/received in a specified frequency band.

Lower sub-block edge:

frequency at the lower edge of one sub-block.

maximum carrier output power:

mean power level measured per carrier at the indicated interface, during the transmitter ON period in a specified reference condition

maximum carrier TRP output power:

mean power level measured per RIB during the transmitter ON period for a specific carrier in a specified reference condition and corresponding to the declared rated carrier TRP output power (P_rated,c,TRP)

maximum total output power:

mean power level measured within the operating band at the indicated interface, during the transmitter ON period in a specified reference condition

maximum total TRP output power:

mean power level measured per RIB during the transmitter ON period in a specified reference condition and corresponding to the declared rated total TRP output power (Prated,t,TRP)

measurement bandwidth:

RF bandwidth in which an emission level is specified

minSENS:

the lowest declared EIS value for the OSDD's declared for OTA sensitivity requirement.

minSENS RoAoA:

The reference RoAoA associated with the OSDD with the lowest declared EIS

multi-band connector:

Antenna Connector of BS type 1-C or TAB connector of BS type 1-H associated with a transmitter or receiver that is 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 than the other carrier(s) and where this different operating band is not a sub-band or superseding-band of another supported operating band

multi-band RIB:

operating band specific RIB associated with a transmitter or receiver that is 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 than the other carrier(s) and where this different operating band is not a sub-band or superseding-band of another supported operating band

Multi-carrier transmission configuration:

set of one or more contiguous or non-contiguous carriers that a NR BS is able to transmit simultaneously according to the manufacturer's specification.

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 GB_Channel.

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.

Non-contiguous spectrum:

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

operating band:

frequency range in which NR operates (paired or unpaired), that is defined with a specific set of technical requirements

OTA coverage range:

a common range of directions within which TX OTA requirements that are neither specified in the OTA peak directions sets nor as TRP requirement are intended to be met

OTA peak directions set:

set(s) of beam peak directions within which certain TX OTA requirements are intended to be met, where all OTA peak directions set(s) are subsets of the OTA coverage range

OTA REFSENS RoAoA:

the RoAoA determined by the contour defined by the points at which the achieved EIS is 3dB higher than the achieved EIS in the reference direction assuming that for any AoA, the receiver gain is optimized for that AoA

OTA sensitivity directions declaration:

set of manufacturer declarations comprising at least one set of declared minimum EIS values (with BS channel bandwidth), and related directions over which the EIS applies

polarization match:

condition that exists when a plane wave, incident upon an antenna from a given direction, has a polarization that is the same as the receiving polarization of the antenna in that direction

radiated interface boundary:

operating band specific radiated requirements reference where the radiated requirements apply

Radio Bandwidth:

frequency difference between the upper edge of the highest used carrier and the lower edge of the lowest used carrier

rated beam EIRP:

For a declared beam and beam direction pair, the rated beam EIRP level is the maximum power that the base station is declared to radiate at the associated beam peak direction during the transmitter ON period

rated carrier output power:

mean power level associated with a particular carrier the manufacturer has declared to be available at the indicated interface, during the transmitter ON period in a specified reference condition

rated carrier TRP output power:

mean power level declared by the manufacturer per carrier, for BS operating in single carrier, multi-carrier, or carrier aggregation configurations that the manufacturer has declared to be available at the RIB during the transmitter ON period

rated total output power:

mean power level associated with a particular operating band the manufacturer has declared to be available at the indicated interface, during the transmitter ON period in a specified reference condition

rated total TRP output power:

mean power level declared by the manufacturer, that the manufacturer has declared to be available at the RIB during the transmitter ON period

reference beam direction pair:

declared beam direction pair, including reference beam centre direction and reference beam peak direction where the reference beam peak direction is the direction for the intended maximum EIRP within the OTA peak directions set

receiver target:

AoA in which reception is performed by BS types 1-H or BS type 1-O

receiver target redirection range:

union of all the sensitivity RoAoA achievable through redirecting the receiver target related to particular OSDD

receiver target reference direction:

direction inside the OTA sensitivity directions declaration declared by the manufacturer for conformance testing. For an OSDD without receiver target redirection range, this is a direction inside the sensitivity RoAoA

reference RoAoA:

the sensitivity RoAoA associated with the receiver target reference direction for each OSDD.

requirement set:

one of the NR base station requirement's set as defined for BS type 1-C, BS type 1-H, BS type 1-O, and BS type 2-O

sensitivity RoAoA:

RoAoA within the OTA sensitivity directions declaration, within which the declared EIS(s) of an OSDD is intended to be achieved at any instance of time for a specific BS direction setting

single-band connector:

BS type 1-C antenna connector or BS type 1-H TAB connector supporting operation either in a single operating band only, or in multiple operating bands but does not meet the conditions for a multi-band connector.

single-band RIB:

operating band specific RIB supporting operation either in a single operating band only, or in multiple operating bands but does not meet the conditions for a multi-band RIB.

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 bandwidth:

bandwidth of one sub-block.

sub-block:

one contiguous allocated block of spectrum for transmission and reception by the same base station

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.

TAB connector:

transceiver array boundary connector

TAB connector RX min cell group:

operating band specific declared group of TAB connectors to which BS type 1-H conducted RX requirements are applied

TAB connector TX min cell group:

operating band specific declared group of TAB connectors to which BS type 1-H conducted TX requirements are applied.

total radiated power:

is the total power radiated by the antenna

transceiver array boundary:

conducted interface between the transceiver unit array and the composite antenna

transmission bandwidth:

RF Bandwidth of an instantaneous transmission from a UE or BS, measured in resource block units

transmitter OFF period:

time period during which the BS transmitter is not allowed to transmit

transmitter ON period:

time period during which the BS transmitter is transmitting data and/or reference symbols

transmitter transient period:

time period during which the transmitter is changing from the OFF period to the ON period or vice versa

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

upper sub-block edge:

frequency at the upper edge of one sub-block.

3.2 Symbols p. 20

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

BeW_θ,REFSENS

Beamwidth equivalent to the OTA REFSENS RoAoA in the θ-axis in degrees. Applicable for FR1 only.

BeW_φ,REFSENS

Beamwidth equivalent to the OTA REFSENS RoAoA in the φ-axis in degrees. Applicable for FR1 only.

BW_Channel

BS channel bandwidth

BW_{Channel_CA}

Aggregated BS Channel Bandwidth, expressed in MHz. BW_{Channel_CA} = F_edge,high – F_edge,low.

BW_{Channel,block}

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

BW_Config

Transmission bandwidth configuration, where BW_Config = NRB x SCS x 12

BW_Contiguous

Contiguous transmission bandwidth, i.e. BS channel bandwidth for single carrier or Aggregated BS channel bandwidth for contiguously aggregated carriers. For non-contiguous operation within a band the term is applied per sub-block.

BW_GB,low

The minimum guard band defined in clause 5.3.3 for lowest assigned component carrier

BW_GB,high

The minimum guard band defined in clause 5.3.3 for highest assigned component carrier

Δf

Separation between the channel edge frequency and the nominal -3 dB point of the measuring filter closest to the carrier frequency

Δf_{BE_offset}

Separation between the edge of the last transmitted channel of the channels assigned for NR-U channel bandwidth and the nominal -3 dB point of the measuring filter closest to the carrier frequency

ΔF_Global

Global frequency raster granularity

Δf_max

f_offset_max minus half of the bandwidth of the measuring filter

Δf_OBUE

Maximum offset of the operating band unwanted emissions mask from the downlink operating band edge

Δf_OOB

Maximum offset of the out-of-band boundary from the uplink operating band edge

Δ_{FR2_REFSENS}

Offset applied to the FR2 OTA REFSENS depending on the AoA

Δ_minSENS

Difference between conducted reference sensitivity and minSENS

Δ_OTAREFSENS

Difference between conducted reference sensitivity and OTA REFSENS

ΔF_Raster

Channel raster granularity

Δ_shift

Channel raster offset for SUL

EIS_minSENS

The EIS declared for the minSENS RoAoA

EIS_REFSENS

OTA REFSENS EIS value

EIS_{REFSENS_50M}

Declared OTA reference sensitivity basis level for FR2 based on a reference measurement channel with 50MHz BS channel bandwidth

F_FBWhigh

Highest supported frequency within supported operating band, for which fractional bandwidth support was declared

F_FBWlow

Lowest supported frequency within supported operating band, for which fractional bandwidth support was declared

F_C

RF reference frequency on the channel raster, given in Table 5.4.2.2-1

F_C,block,high

Fc of the highest transmitted/received carrier in a sub-block.

F_C,block,low

Fc of the lowest transmitted/received carrier in a sub-block.

F_C,low

The Fc of the lowest carrier, expressed in MHz.

F_C,high

The Fc 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_edge,low

The lower edge of Aggregated BS Channel Bandwidth, expressed in MHz. F_edge,low = F_C,low – F_offset,low.

F_edge,high

The upper edge of Aggregated BS Channel Bandwidth, expressed in MHz. F_edge,high = F_C,high + F_offset,high.

F_{edge,block,low}

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

F_{edge,block,high}

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

F_filter

Filter centre frequency

F_offset,high

Frequency offset from F_C,high to the upper Base Station RF Bandwidth edge, or from F_C,block,high to the upper sub-block edge

F_offset,low

Frequency offset from F_C,low to the lower Base Station RF Bandwidth edge, or from F_C,block,low to the lower sub-block edge.

f_BE_offset

Separation between the edge of the last transmitted channel of the channels assigned for NR-U channel bandwidth and the centre of the measuring

f_offset

Separation between the channel edge frequency and the centre of the measuring

f_offset_max

The offset to the frequency Δf_OBUE outside the downlink operating band

F_REF

RF reference frequency

F_REF-Offs

Offset used for calculating FREF

F_REF,shift

RF reference frequency for Supplementary Uplink (SUL) bands

F_step,X

Frequency steps for the OTA transmitter spurious emissions (Category B)

F_UL,low

The lowest frequency of the uplink operating band

F_UL,high

The highest frequency of the uplink operating band

GB_Channel

Minimum guard band defined in clause 5.3.3

N_cells

The declared number corresponding to the minimum number of cells that can be transmitted by an BS type 1-H in a particular operating band

n_PRB

Physical resource block number

N_RB

Transmission bandwidth configuration, expressed in resource blocks

N_RB,high

Transmission bandwidth configuration for the highest assigned component carrier within a sub-block in CA

N_RB,low

Transmission bandwidth configuration for the lowest assigned component carrier within a sub-block in CA

N_REF

NR Absolute Radio Frequency Channel Number (NR-ARFCN)

N_REF-Offs

Offset used for calculating NREF

N_RXU,active

The number of active receiver units. The same as the number of demodulation branches to which compliance is declared for chapter 8 performance requirements

_NRXU,counted

The number of active receiver units that are taken into account for conducted Rx spurious emission scaling, as calculated in clause 7.6.1

N_{RXU,countedpercell}

The number of active receiver units that are taken into account for conducted RX spurious emissions scaling per cell, as calculated in clause 7.6.1

N_TXU,counted

The number of active transmitter units as calculated in clause 6.1, that are taken into account for conducted TX output power limit in clause 6.2.1, and for unwanted TX emissions scaling

N_{TXU,countedpercell}

The number of active transmitter units that are taken into account for conducted TX emissions scaling per cell, as calculated in clause 6.1

P_{EM,n50/n75,ind}

Declared emission level for Band n50/n75; ind = a, b

P_EM,n54,ind

Declared emission level for Band n54; ind = a, b, c, d, e, f

P_EIRP,N

EIRP level for channel N

P_max,c,AC

Maximum carrier output power measured per antenna connector

P_max,c,cell

The maximum carrier output power per TAB connector TX min cell group

P_max,c,TABC

The maximum carrier output power per TAB connector

P_max,c,TRP

Maximum carrier TRP output power measured at the RIB(s), and corresponding to the declared rated carrier TRP output power (P_rated,c,TRP)

P_max,c,EIRP

The maximum carrier EIRP when the NR BS is configured at the maximum rated carrier output TRP (P_rated,c,TRP)

P_rated,c,AC

The rated carrier output power per antenna connector

P_rated,c,cell

The rated carrier output power per TAB connector TX min cell group

P_{rated,c,FBWhigh}

The rated carrier EIRP for the higher supported frequency range within supported operating band, for which fractional bandwidth support was declared

P_{rated,c,FBWlow}

The rated carrier EIRP for the lower supported frequency range within supported operating band, for which fractional bandwidth support was declared

P_rated,c,sys

The sum of P_rated,c,TABC for all TAB connectors for a single carrier

P_rated,c,TABC

The rated carrier output power per TAB connector

P_rated,c,TRP

Rated carrier TRP output power declared per RIB

P_rated,t,AC

The rated total output power declared at the antenna connector

P_rated,t,TABC

The rated total output power declared at TAB connector

P_rated,t,TRP

Rated total TRP output power declared per RIB

P_REFSENS

Conducted Reference Sensitivity power level

SCS_low

Sub-Carrier Spacing for the lowest assigned component carrier within a sub-block in CA

SCS_high

Sub-Carrier Spacing for the highest assigned component carrier within a sub-block in CA

SS_REF

SS block reference frequency position

W_gap

Sub-block gap or Inter RF Bandwidth gap size

3.3 Abbreviations p. 22

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.

Antenna Array

AAS

Active Antenna System

ACLR

Adjacent Channel Leakage Ratio

ACS

Adjacent Channel Selectivity

AoA

Angle of Arrival

AWGN

Additive White Gaussian Noise

Base Station

Bandwidth

Carrier Aggregation

CACLR

Cumulative ACLR

CPE

Common Phase Error

CP-OFDM

Cyclic Prefix-OFDM

Continuous Wave

DFT-s-OFDM

Discrete Fourier Transform-spread-OFDM

DM-RS

Demodulation Reference Signal

EIS

Equivalent Isotropic Sensitivity

EIRP

Effective Isotropic Radiated Power

E-UTRA

Evolved UTRA

EVM

Error Vector Magnitude

FBW

Fractional Bandwidth

Frequency Range

FRC

Fixed Reference Channel

GSCN

Global Synchronization Channel Number

GSM

Global System for Mobile communications

HAPS

High Altitude Platform Station

ITU-R

Radiocommunication Sector of the International Telecommunication Union

ICS

In-Channel Selectivity

Local Area

LNA

Low Noise Amplifier

MCS

Modulation and Coding Scheme

Medium Range

NB-IoT

Narrowband - Internet of Things

New Radio

NR-ARFCN

NR Absolute Radio Frequency Channel Number

OBUE

Operating Band Unwanted Emissions

OCC

Orthogonal Covering Code

OOB

Out-of-band

OSDD

OTA Sensitivity Directions Declaration

OTA

Over-The-Air

PRB

Physical Resource Block

PT-RS

Phase Tracking Reference Signal

QAM

Quadrature Amplitude Modulation

Resource Block

RDN

Radio Distribution Network

Resource Element

REFSENS

Reference Sensitivity

Radio Frequency

RIB

Radiated Interface Boundary

RMS

Root Mean Square (value)

RoAoA

Range of Angles of Arrival

QAM

Quadrature Amplitude Modulation

Resource Block

Receiver

SCS

Sub-Carrier Spacing

SDL

Supplementary Downlink

Synchronization Symbol

SSB

Synchronization Signal Block

SUL

Supplementary Uplink

TAB

Transceiver Array Boundary

TAE

Time Alignment Error

TDL

Tapped Delay Line

Transmitter

TRP

Total Radiated Power

UCI

Uplink Control Information

UEM

Unwanted Emissions Mask

UTRA

Universal Terrestrial Radio Access

Wide Area

Zero Forcing