3 Definitions, symbols and abbreviations
37.1133GPPMulti-Standard Radio (MSR) Base Station (BS) Electromagnetic Compatibility (EMC)NR, 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].
Ancillary equipment: Equipment (apparatus), used in connection with a receiver, transmitter or transceiver is considered as an ancillary equipment (apparatus) if:
– the equipment is intended for use in conjunction with a receiver, transmitter or transceiver to provide additional operational and/or control features to the radio equipment, (e.g. to extend control to another position or location); and
– the equipment cannot be used on a stand-alone basis to provide user functions independently of a receiver, transmitter or transceiver; and
– the receiver, transmitter or transceiver to which it is connected, is capable of providing some intended operation such as transmitting and/or receiving without the ancillary equipment (i.e. it is not a sub‑unit of the main equipment essential to the main equipment basic functions).
antenna connector: connector at the conducted interface of the BS type 1-C
Band category: group of operating bands for which the same MSR scenarios apply
Base Station equipment: Radio and/or ancillary equipment intended for operation at a fixed location and powered directly or indirectly (e.g. via an AC/DC converter or power supply) by AC mains network, or an extended local DC mains network.
Base Station RF bandwidth: The bandwidth in which a Base Station transmits and/or receives multiple carriers and/or RATs simultaneously.
Base Station RF bandwidth edge: The frequency of one of the edges of the Base Station RF bandwidth.
BS type 1-C: NR base station operating at FR1 with requirements set consisting only of conducted requirements defined at individual antenna connectors.
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.
Continuous phenomena (continuous disturbance): Electromagnetic disturbance, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects (IEC 60050-161 [14]).
Lower RF bandwidth edge: The frequency of the lower edge of the Base Station RF bandwidth, used as a frequency reference point for transmitter and receiver requirements.
Maximum Base Station RF bandwidth: The maximum RF bandwidth supported by a BS within an operating band.
Maximum throughput: The maximum achievable throughput for a reference measurement channel.
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 non-overlapping operating band than the other carrier(s).
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 RF bandwidth, where at least one carrier is of a different RAT than the other carrier(s).
NOTE: A Base Station where receiver or transmitter processes carriers of different RATs simultaneously, but not through common active RF components, is not an MSR BS according to the above definition. Such a BS is in the present specification referred to as "other BS supporting more than one RAT".
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 an 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.
Radio communications equipment: Telecommunications equipment which includes one or more transmitters and/or receivers and/or parts thereof for use in a fixed, mobile or portable application. It can be operated with ancillary equipment but if so, is not dependent on it for basic functionality.
Radio equipment: Equipment which contains Radio digital unit and Radio unit.
Radio digital unit: Equipment which contains base band and functionality for controlling Radio unit.
Radio unit: Equipment which contains transmitter and/or receiver.
Port: A particular interface, of the specified equipment (apparatus), with the electromagnetic environment. For example, any connection point on an equipment intended for connection of cables to or from that equipment is considered as a port (see figure 3.1.1).
Receiver exclusion band: The receiver exclusion band is the band of frequencies over which no tests of radiated immunity of a receiver are made. The exclusion band for receivers is expressed relative to the base station receive band.
Signal and control port: Port which carries information or control signals, excluding antenna ports.
Telecommunication port: Ports which are intended to be connected to telecommunication networks (e.g. public switched telecommunication networks, integrated services digital networks), local area networks (e.g. Ethernet, Token Ring) and similar networks.
Throughput: The number of payload bits successfully received per second for a reference measurement channel in a specified reference condition.
Transient phenomena: Pertaining to or designating a phenomena or a quantity which varies between two consecutive steady states during a time interval short compared with the time-scale of interest (IEC 60050-161 [14]).
Transmitter exclusion band: The transmitter exclusion band is the band of frequencies over which no tests of radiated immunity of a transmitter are made. The exclusion band for transmitters is expressed relative to the carrier frequencies used (the carrier frequencies of the base stations activated transmitter(s)).
Upper RF bandwidth edge: The frequency of the upper edge of the Base Station RF bandwidth, used as a frequency reference point for transmitter and receiver requirements.
Figure 3.1-1: Examples of ports
Figure 3.1-2: BS with single enclosure solution
Figure 3.1-3: BS with multiple enclosure solution
3.2 Symbols
For the purposes of the present document, the following symbols apply:
BWChannel Channel bandwidth
FC,high Center frequency of the highest transmitted/received carrier.
FC,low Center frequency of the lowest transmitted/received carrier.
FDL_high The highest frequency of the downlink operating band
FDL_low The lowest frequency of the downlink operating band
foffset Frequency offset used for discovering narrowband response for receivers
Foffset, RAT Frequency offset from FC,high to the upper RF bandwidth edge or FC,low to the lower RF bandwidth edge for a specific RAT
FUL_high The highest frequency of the uplink operating band
FUL_low The lowest frequency of the uplink operating band
ΔfOBUE Maximum offset of the operating band unwanted emissions mask from the operating band edge
ΔfOOB Maximum offset of the out-of-band boundary from the uplink operating band edge
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].
AC Alternating Current
AMN Artificial Mains Network
ARFCN Absolute Radio Frequency Channel Number
BC Band Category
BER Bit Error Ratio
BLER Block Error Ratio
CDN Coupling/Decoupling Network
CS Capability Set
DC Direct Current
E-UTRA Evolved Universal Terrestrial Radio Access
EARFCN E-UTRA Absolute Radio Frequency Channel Number
EMC Electromagnetic Compatibility
EPC Evolved Packet Core
ESD Electrostatic discharge
EUT Equipment Under Test
FR Frequency Range
FRC Fixed Reference Channel
MB-MSR Multi-Band Multi-Standard Radio
MSR Multi-Standard Radio
NB-IoT Narrowband – Internet of Things
NR New Radio
NR-ARFCN NR Absolute Radio Frequency Channel Number
NTC Test Configuration for Non-contiguous operation
RAT Radio Access Technology
RF Radio frequency
rms root mean square
TC Test Configuration
UARFCN UTRA Absolute Radio Frequency Channel Number
UTRA Universal Terrestrial Radio Access