ITU-R Recommendation M.2150 (previously known as IMT 2020) is being updated with new features for the 3GPP and ETSI-DECT 5G radio interface specifications in Annex 1, 2 and 4.  This updated recommendation has been given the temporary name “M.2150-1.”

The main changes include the addition of enhanced capabilities for 3GPP 5G-SRIT (Set of Radio Interface Technologies), 3GPP 5G-RIT (Radio Interface Technology), DECT 5G-SRIT, and some consequential changes to the overview sections of the text, as well as to the Global Core Specifications.

This M.2150-1 revision is expected to be completed at ITU-R WP 5D meeting #44 which is June 13-22, 2023 in Geneva.

Annex 1:  3GPP 5G SRIT

The main purpose of this update is to align Rec. ITU-R M.2150 to the Release 17 December 2022 version of the 3GPP Specifications of 3GPP 5G-SRIT. The main features introduced in this update are:

– Addition of new modulation schemes for NB-IoT and LTE-M (LPWANs for IoT connectivity)

– The addition of new numerologies for NR;

– New logical channels and their mapping to physical channels;

– Reduced Capability (RedCap) NR devices.

Annex 2:  3GPP 5G RIT- aka “5G-NR”

The main purpose of this update is to align Rec. ITU-R M.2150 to the Release 17 December 2022 version of the 3GPP Specifications of 3GPP 5G-RIT. The main features introduced in this update are:

– The addition of new numerologies for NR

– New logical channels and their mapping to physical channels

– Reduced Capability (RedCap) NR devices.

IMPORTANT NOTE: Since 3GPP Release 16 5G-NR URRLC in the RAN spec has not been completed yet, it was not submitted to 5D for inclusion in M.2150-1.  Therefore, ITU M.2150-1 still does not meet the URLLC Minimum Performance Requirements specified in ITU-R M.2410.  In particular, 3GPP Rel 16 URRLC in the RAN:

3GPP Release 17 Timeline:

Annex 4:  DECT 5G – SRIT

The DECT 5G – SRIT consists of two components: 1.] DECT-2020 NR and 2.] 3GPP 5G-NR. The followings contain the information for each of the component RITs.

– DECT-2020 NR component RIT The original submission contained the layers up to the ‘Medium Access Control’ layer. In this update the ‘Data Link Control’ (DLC) and ‘Convergence’ (CVG) layers have been added.

– 3GPP 5G- NR component RIT.  The changes are identical to those in Annex 2.  The main purpose of this update is to align Rec. ITU-R M.2150 to the Release 17 December 2022 version of the 3GPP Specifications of 3GPP 5G-RIT.

• The addition of new numerologies for NR

• New logical channels and their mapping to physical channels

• Reduced Capability (RedCap) NR devices.

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ITU-R WP5D meeting #43 considered future revisions of Recommendations ITU-R M.2150 (and ITU-R M.2012) after year 2023 and prepared initial and preliminary revision schedules in which revisions of both Recommendations would be completed by the end of 2025.  That may or may not include what pundits label “5G-Advanced,” which is coming from 3GPP Release 18.

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Objectives for WP5D – WG Technology Aspects at the 44th WP 5D meeting (June 12-23, 2023 in Geneva):

i) finalize preliminary draft revision “after year 2021” of Recommendation ITU-R M.2150;
ii) finalize preliminary draft revision of Recommendation ITU-R M.2012-5;
iii) finalize the Report ITU-R M.[IMT.ABOVE 100GHz];
iv) finalize preliminary draft revisions of Recommendations ITU-R M.2070-1 and ITU‑R M.2071-1 “Generic unwanted emission IMT‑Advanced”;
v) continue working on OOBE BS/MS for IMT-2020 “Generic unwanted emissions IMT‑2020.”

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References:

IMT 2020.SPECS approved by ITU-R but may not meet 5G performance requirements; no 5G frequencies (revision of M.1036); 5G non-radio aspects not included

5G Specifications (3GPP), 5G Radio Standard (IMT 2020) and Standard Essential Patents

Executive Summary: IMT-2020.SPECS defined, submission status, and 3GPP’s RIT submissions

https://www.itu.int/pub/R-REP-M.2410-2017

ETSI DECT-2020 approved by ITU-R WP5D for next revision of ITU-R M.2150 (IMT 2020)

https://www.itu.int/en/mediacentre/Pages/PR-2022-02-24-5G-Standards.aspx

https://www.3gpp.org/specifications-technologies/releases/release-17