Content for TR 38.853 Word version: 17.4.0
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1 Scope p. 6
The present document is a technical report deals with the use of the Rail Mobile Radio spectrum in the 900 MHz frequency band in CEPT countries which are subject to the ECC Decision (20)02 [1] for the use by the railways. The purpose is to gather the relevant background information and studies in order to address all the necessary precautions to make the paired spectrum of 874.6-800/919.4-925 MHz usable for 5G NR.
2 References p. 6
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]
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) ".
[2]
European Commission implementing Decision (EU) 2021/1730 on the harmonised use of the paired frequency bands 874,4-880,0 MHz and 919,4-925,0 MHz and of the unpaired frequency band 1 900-1 910 MHz for Railway Mobile Radio, 28 September 2021.
[3]
TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone".
[4]
TS 38.104: "NR; Base Station (BS) radio transmission and reception".
[5]
ECC Report 318, Compatibility between RMR and MFCN in the 900 MHz range, the 1900-1920 MHz band and the 2290-2300 MHz band.
[6]
ECC Report 313; Technical study for co-existence between RMR in the 900 MHz range and other applications in adjacent bands; approved 21 May 2020.
[7]
R4-210431: LS to 3GPP RAN WG4 on the interferer signal definition for the RMR900 BS Rx blocking requirement.
[8]
TR 37.829: "High-power UE operation for fixed-wireless/vehicle-mounted use cases in LTE bands and NR bands for Rel-18".
[9]
R4-2400334: LS to 3GPP RAN4 on in-block output power requirements for bands n100 and n101 and on additional unwanted emission limits for band n100, LSin, CEPT ECC WG FM.
3 Definitions of terms, symbols and abbreviations p. 6
3.1 Terms p. 6
For the purposes of the present document, the terms 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.
3.2 Symbols p. 6
For the purposes of the present document, the following symbols apply:
BWChannel
BS channel bandwidth
FDL,low
The lowest frequency of the downlink operating band
FDL,high
The highest frequency of the downlink operating band
PREFSENS
Conducted Reference Sensitivity power level
3.3 Abbreviations p. 7
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.
AAS
Advanced Antenna Systems
ACLR
Adjacent Channel Leakage Ratio
ARFCN
Absolute Radio Frequency Channel Number
BS
Base Station
BW
Bandwidth
CEPT
Conférence Européenne des administrations des Postes et Télécommunications
EC
European Commission
ECC
Electronic Communications Committee
EIRP
Effective Isotropic Radiated Power
FDD
Frequency Division Duplex
GSCN
Global Synchronization Channel Number
HST
High Speed Train
MFCN
Mobile/Fixed Communications Networks
NR
New Radio
REFSENS
Reference Sensitivity
RF
Radio Frequency
RMR
Rail Mobile Radio
SCS
Sub-Carrier Spacing
SS
Synchronization Signal
