Maintenance of NR positioning support

DL Reference Signals for NR Positioning

R1-2001558	Maintenance of DL PRS for NR positioning	Huawei, HiSilicon

R1-2001600	Maintenance of DL reference signals for NR positioning	ZTE

R1-2001685	Discussion on remaining issues on DL RS for NR positioning	vivo

R1-2001731	Remaining Issues on DL Positioning Reference Signal	OPPO

R1-2001954	Remaining details of DL Reference signals for NR positioning	LG Electronics

R1-2002046	Remaining details on DL Reference Signals	Futurewei

R1-2002095	Remaining issues on DL PRS for NR Positioning	CATT

R1-2002144	DL Reference Signals for NR Positioning	Samsung

R1-2002288	Corrections to DL reference signals for NR positioning	Intel Corporation

R1-2002557	Discussion on DL PRS processing & related UE capabilities	Qualcomm Incorporated

R1-2002620	Maintenance of rel16 DL reference signals for NR positioning	Ericsson

[100b-e-NR-Pos-01] Email discussion/approval on the following issues related to UE DL PRS processing capabilities by 4/24; if necessary, followed by endorsing the corresponding TPs by 4/29 – Alexey (Intel)

How to define duration for UE DL PRS processing capabilities

Reporting of UE DL PRS processing capabilities and T values

Dependence on BW and SCS

Simultaneous DL PRS processing across frequency layers

UE DL PRS processing capabilities for cases with and without measurement gap configured

[100b-e-NR-Pos-02] Email discussion/approval on the following issues by 4/23; if necessary, followed by endorsing the corresponding TPs by 4/28 – Alexey (Intel)

Corrections to 38.211

PRS/SSB collision handling for neighbour cells

Missing value in muting pattern

Periodicity in slots for DL PRS transmission

Relationship b/w number of symbols and comb factor

NR-TimingMeasQuality for RSTD

Agreement:

The following text proposal for TS 38.211 is agreed.

--------------- Begin TP -------------------

7.4.1.7.3	Mapping to physical resources in a downlink PRS resource

-	the symbol is not used by any SS/PBCH block used by the serving cell for downlink PRS transmitted from the serving cell or any SS/PBCH block from a non-serving cell indicated by the higher-layer parameter SSB-positionInBurst for downlink PRS transmitted from a the same non-serving cell;

----------------- End TP ---------------------------

Agreement:

The following text proposal for TS 38.211 is agreed.

------------------ Begin TP ----------------------

7.4.1.7.4 Mapping to slot in a downlink PRS resource set

<Text is omitted>

For a downlink PRS resource in a downlink PRS resource set, the UE shall assume the downlink PRS resource being transmitted when the slot and frame numbers fulfil

<Text is omitted>

-	is bit in the bitmap given by the higher-layer parameter DL-PRS-MutingPattern where is the size of the bitmap;

-	is bit in the bitmap given by the higher-layer parameter DL-PRS-MutingPattern;

<Text is omitted>

the periodicity is given by the higher-layer parameter dl-PRS-Periodicity-and-ResourceSetSlotOffset-r16;

<Text is omitted>

---------------------- End TP -------------------------

Agreement:

The following text proposal for TS 38.211 is agreed.

--------------------------- Begin TP ----------------------------

7.4.1.7.3	Mapping to physical resources in a downlink PRS resource

<Text is omitted>

and where

-	is the first symbol of the downlink PRS within a slot and given by the higher-layer parameter DL-PRS-ResourceSymbolOffset;

-	the size of the downlink PRS resource in the time domain is given by the higher-layer parameter DL-PRS-NumSymbols;

-	the comb size is given by the higher-layer parameter transmissionComb;, such that combination of {, } is one of {2, 2},{4, 2}, {6, 2}, {12, 2}, {4, 4}, {12, 4}, {6, 6}, {12, 6} and {12, 12};

-	the resource-element offset is given by the higher-layer parameter combOffset;

-	the quantity is given by Table 7.4.1.7.3-1.

<Text is omitted>

---------------------------- End TP ----------------------------------

Conclusion:

It is RAN1 understanding that the NR-TimingMeasQuality is the quality for time of arrival measurements

NR-TimingMeasQuality is left up to UE implementation

Notes:

No RAN1 specification changes are required.

NR-TimingMeasQuality measurement is also applicable for the reference timing used in RSTD measurements

UL Reference Signals for NR Positioning

R1-2001559	Maintenance of SRS for NR positioning	Huawei, HiSilicon

R1-2001601	Maintenance of UL reference signals for NR positioning	ZTE

R1-2001686	Discussion on remaining issues on UL RS for NR positioning	vivo

R1-2001732	Remaining Issues on UL Positioning Reference Signal	OPPO

R1-2002038	Maintenance on UL reference signals for NR Positioning	Nokia, Nokia Shanghai Bell

R1-2002047	Remaining details on UL Reference Signals	Futurewei

R1-2002096	Remaining issues on UL SRS for NR Positioning	CATT

R1-2002145	UL Reference Signals for NR Positioning	Samsung

R1-2002199	Discussion on staggered SRS for NR Positioning	Fraunhofer IIS, Fraunhofer HHI

R1-2002286	Corrections to UL reference signals for NR positioning	Intel Corporation

R1-2002621	Maintenance of rel16 UL reference signals for NR positioning	Ericsson

[100b-e-NR-Pos-03] Email discussion/approval on the following issues by 4/23; if necessary, followed by endorsing the corresponding TPs by 4/28 – Florent (Ericsson)

UL SRS for positioning

Simultaneous SRS transmission in a single symbol

Intra-band collision between PosSRS and MimoSRS

PHR for SRS positioning configuration

UL RTOA reference time

UE and gNB measurements for NR Positioning

R1-2001560	Maintenance of NR positioning measurements	Huawei, HiSilicon

R1-2001602	Maintenance of UE and gNB measurements for NR positioning	ZTE

R1-2001733	Remaining Issues on Measurements for NR Positioning	OPPO

R1-2002048	Remaining details on Measurements	Futurewei

R1-2002097	Remaining issues on NR Positioning Measurements	CATT

R1-2002146	UE and gNB measurements for NR Positioning	Samsung

R1-2002622	Maintenance of rel16 UE and gNB measurements for NR Positioning	Ericsson

Physical-layer procedures to support UE/gNB measurements

R1-2001561	Maintenance of physical layer procedures to support positioning measurements	Huawei, HiSilicon

R1-2001603	Maintenance of physical-layer procedure for NR positioning	ZTE

R1-2001687	Discussion on remaining issues on physical-layer procedures for NR positioning	vivo

R1-2001734	Remaining Issues on Physical Layer Procedures for NR Positioning	OPPO

R1-2001955	Remaining details of physical-layer procedure to support UE/gNB measurements	LG Electronics

R1-2002049	Remaining details on Measurement Procedures	Futurewei

R1-2002098	Remaining issues on NR Positioning Procedures	CATT

R1-2002147	Physical-layer procedures to support UE/gNB measurements	Samsung

R1-2002217	Remaining issues on physical layer procedure for UL SRS transmission	CMCC

R1-2002287	Corrections to physical layer procedures for NR positioning	Intel Corporation

R1-2002623	Maintenance of rel16 Physical-layer procedures to support UE - gNB measurements	Ericsson

[100b-e-NR-Pos-04] Email discussion/approval on the following issues by 4/24; if necessary, followed by endorsing the corresponding TPs by 4/29 – Sven (Qualcomm)

Physical layer procedures

UE RX beam indication for DL-AoD positioning

RSTD/timing reference info clarifications

UE Rx-Tx Time Difference measurements configuration

Pathloss reference configuration

Inter-frequency UE Rx – Tx time difference measurements

Others

R1-2001735	Discussion on RE mapping in reference signal for NR positioning	OPPO

R1-2002676	On positioning latency and aperiodic SRS	Huawei, HiSilicon