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TR 37.878
Rel-18 Band combinations for concurrent operation of
NR/LTE Uu bands/band combinations and one NR/LTE V2X PC5 band

3GPP‑Page  
V18.0.0 (Wzip)  2023/12  19 p.
Rapporteur:
Miss Guo, Qiuge
CATT

full Table of Contents for  TR 37.878  Word version:  18.0.0

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1 Scope  2 References  3 Definitions, symbols and abbreviations  4 Background  6 Con-current operation between one Uu band and one PC5 band  6.1 Con-current operation between one LTE Uu band and one NR PC5 band  6.2 Con-current operation between one NR Uu band and one NR PC5 band  6.3 Con-current operation between one NR Uu band and one LTE PC5 band  $ Change history 

 

1  Scope  p. 5

The present document is the Technical Report on TR on band combinations for con-current operation of NR/LTE Uu bands/band combinations and one NR/LTE V2X band in Release 18.
The purpose of the present document is to study the extension of the band combinations for V2X service to grow the NR V2X ecosystem. Operators propose new band combinations for con-current operation of NR/LTE Uu bands/band combinations and one NR/LTE V2X band. Whether to specify con-current operation of LTE/NR CA/DC band combinations and V2X band depends on requests in Rel-18. Specifically, the self-desensitization problem of con-current operation band combinations will be analysed including harmonics, IMD problem, etc. Also the candidate solutions will be studied to solve the self-desensitization problem.
V2X Band combination REL independent from
V2X_n3-n47Rel-16
V2X_n34-n47Rel-16
V2X_n3_47Rel-16
V2X_n34_47Rel-16
V2X_34_n47Rel-16
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2  References  p. 5

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]
RP-221879: "New WID: Rel-18 band combinations for concurrent operation of NR/LTE Uu bands/band combinations and one NR/LTE V2X PC5 band ".
[3]
TR 38.886: V16.3.0 "V2X Services based on NR; User Equipment (UE) radio transmission and reception".
[4]
TR 38.785: V17.0.0 "User Equipment (UE) radio transmission and reception for enhanced NR sidelink".
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3  Definitions, symbols and abbreviations  p. 6

3.1  Definitions  p. 6

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.

3.2  Symbols  p. 6

For the purposes of the present document, the following symbols apply:
ΔRIB,c
Allowed reference sensitivity relaxation due to support for CA or DC operation, for serving cell c.
ΔTIB,c
Allowed maximum configured output power relaxation due to support for CA or DC operation, for serving cell c

3.3  Abbreviations  p. 6

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.
CA
Carrier Aggregation
CC
Component Carrier
DC
Dual Connectivity
ITS
Intelligent Transportation System
MSD
Maximum Sensitivity Degradation
REFSENS
Reference Sensitivity

4  Background  p. 6

4.1  Justification  p. 6

3GPP has completed the Release 17 work item on NR V2X including RAN4 minimum requirements and frequency bands for V2X operation. The current specification considers an set of frequency bands for PC5 interface and requirement frame work for con-current operation between Uu bands and V2X bands as part of Release 17 work.
However, in order to further enhance the V2X ecosystem, it is necessary to set up a basket WI to introduce more band combinations on con-current operation of Uu bands and V2X bands in Release 18.
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4.2  Objective  p. 6

The objective of this work item is to specify band specific RF requirements for the following scenarios with maximum two simultaneous transmission bands within FR1:
  • Con-current operation between NR Uu band and NR PC5 band.
  • Con-current operation between LTE Uu band and NR PC5 band.
  • Con-current operation between NR Uu band and LTE PC5 band.
  • Whether to specify con-current operation of LTE/NR CA/DC band combinations + PC5 V2X band depending on requests in Rel-18.
    • If there is such request the denotation on the combination definition need to be discussed at first.
    • Analyse con-current operation band combinations that have self-desensitization due to following reasons:
    • TX Harmonic and/or inter modulation overlap of receive band
    • TX signal overlap of receiver harmonic frequency
    • TX frequency being in close proximity of one of the receive bands
    • Any other identified reasons
  • For the combination where self-desensitization exists, specify at least needed
    • ΔTIB and ΔRIB
    • Reference sensitivity excerptions
    • UL/SL RB restrictions for REFSENS test
  • Add conformance testing in RAN5 specifications (to follow at a later stage)
of all REL-18 V2X con-current operation band combinations that fall into the category defined by the WI title.
An overview of these V2X con-current operation band combinations is provided in the attached Excel.
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5  Void

6  Con-current operation between one Uu band and one PC5 band  p. 7

6.1  Con-current operation between one LTE Uu band and one NR PC5 band  p. 7

6.1.1  V2X_34A_n47A  p. 7

6.1.1.1  Operating bands for V2X_34A_n47A  p. 7

6.1.1.2  Channel bandwidths per operating band for V2X_34A_n47A  p. 8

6.1.1.3  UE co-existence studies  p. 8

6.1.1.4  MSD, ΔTIB and ΔRIB values  p. 8

6.2  Con-current operation between one NR Uu band and one NR PC5 band  p. 8

6.2.1  V2X_n34A-n47A  p. 8

6.2.1.1  Operating bands for V2X_n34A-n47A  p. 8

6.2.1.2  Channel bandwidths per operating band for V2X_n34A-n47A  p. 9

6.2.1.3  Coexistence studies  p. 10

6.2.1.4  MSD, ΔTIB and ΔRIB values  p. 13

6.2.2  V2X_n3A-n47A  p. 13

6.2.2.1  Operating bands for V2X_n3A-n47A  p. 13

6.2.2.2  Channel bandwidths per operating band for V2X_n3A-n47A  p. 14

6.2.2.3  UE co-existence studies  p. 14

6.2.2.4  MSD, ΔTIB and ΔRIB values  p. 16

6.3  Con-current operation between one NR Uu band and one LTE PC5 band  p. 16

6.3.1  V2X_n34A_47A  p. 16

6.3.1.1  Operating bands for V2X_n34A_47A  p. 16

6.3.1.2  Channel bandwidths per operating band for V2X_n34A_47A  p. 17

6.3.1.3  UE co-existence studies  p. 17

6.3.1.4  MSD, ΔTIB and ΔRIB values  p. 17

6.3.2  V2X_n3A_47A  p. 17

6.3.2.1  Operating bands for V2X_n3A_47A  p. 17

6.3.2.2  Channel bandwidths per operating band for V2X_n3A_47A  p. 18

6.3.2.3  UE co-existence studies  p. 18

6.3.2.4  MSD, ΔTIB and ΔRIB values  p. 18

7  Void

$  Change history  p. 19

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