IP Library › Granted Patent US 12,278,748
Granted Patent B2
US 12,278,748 · App. 17/021,816 · Granted Apr 15, 2025

Detailed warning and error reporting related to UL PRS transmission properties

Inventors: Alexandros Manolakos (Escondido, CA); Sony Akkarakaran (Poway, CA); Guttorm Ringstad Opshaug (Redwood City, CA); Sven Fischer (Nuremberg, DE); Wanshi Chen (San Diego, CA); Tao Luo (San Diego, CA); Peter Gaal (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04L43/0864H04L5/005H04L25/0224H04W24/10H04W36/00692H04W36/322H04W76/18H04W76/28
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Quick Facts
Patent No.
US 12,278,748
App. No.
17/021,816
Filed
Sep 15, 2020
Granted
Apr 15, 2025
Kind
B2
Art Unit
2462
USPC
370/331
Abstract

A user equipment (UE) receives reference signal resource configuration for transmitting reference signals for positioning from, e.g., a location server. The UE transmits or attempts to transmit reference signals for positioning to one or more transmission-reception points, such as a gNB. The UE may, however, may be unable to transmit reference signals in accordance with the reference signal resource configuration. For example, the UE may be unable to transmit the reference signals or may transmit the reference signals with lower power or a different spatial relation than configured. The UE may provide a reference signal transmission report indicating that the reference signals were not transmitted according to the reference signal resource configuration. The reference signal transmission report may indicate how the reference signal transmission differs from the reference signal resource configuration and may indicate the reasons that the reference signal transmission differs from the reference signal resource configuration.

Claims (121)

1. A method of supporting positioning of a user equipment (UE) performed by the UE, comprising:

receiving, at the UE, at least one reference signal resource configuration for transmitting reference signals for positioning;

attempting to transmit, from the UE, one or more of the reference signals for positioning to one or more transmission-reception points based on the at least one reference signal resource configuration;

detecting, at the UE, that the attempt to transmit the one or more of the reference signals was not in accordance with the at least one reference signal resource configuration; and

transmitting, from the UE, a reference signal transmission report to a network entity, the reference signal transmission report indicating that one or more of the reference signals attempted to be transmitted from the UE were not transmitted from the UE according to the at least one reference signal resource configuration, and indicating reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration, wherein the indicated reasons comprise one or more of:

the UE was unable to transmit the one or more of the reference signals;

the one or more of the reference signals were transmitted with lower power than configured by the at least one reference signal resource configuration;

the one or more of the reference signals were transmitted on a different beam than configured by the at least one reference signal resource configuration; or

any combination thereof.

2. The method of claim 1 , wherein the reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration comprise one or more of:

unable to transmit due to a serving Cell change;

unable to transmit due to a first collision with a downlink symbol;

unable to transmit due to a second collision with a first other uplink physical (PHY) channel;

unable to transmit due to the at least one reference signal resource configuration being outside an active bandwidth part;

unable to transmit due to a third collision with uplink or downlink radio frequency retuning time;

the one or more of the reference signals were transmitted with a first lower power than configured by the at least one reference signal resource configuration due to at least one of Carrier Aggregation Power limitations, Dual Connectivity (DC), or Maximum Permissible Exposure (MPE);

the one or more of the reference signals were transmitted using a first spatial relation different than configured by the at least one reference signal resource configuration due to a fourth collision of a configured spatial relation with one of a higher priority channel;

unable to transmit due to being in a discontinuous reception (DRX) mode;

the one or more of the reference signals were transmitted with a second lower power than configured by the at least one reference signal resource configuration due to a low battery state associated with the UE; or

any combination thereof.

3. The method of claim 2 , wherein the reference signal transmission report further indicates one or more of:

a slot ID, a subframe ID, or a frame ID that contains the one or more of the reference signals;

a resource ID or resource set ID of the one or more of the reference signals;

a first reference ID of a first downlink signal configured for a second spatial relation between a first reference signal from a first transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration in response to the one or more of the reference signals not being transmitted according to a spatial relation configuration of the at least one reference signal resource configuration;

a spatial relation information associated with the one or more of the reference signals in response to the one or more of the reference signals being transmitted using a different spatial relation than configured by the at least one reference signal resource configuration;

a second reference ID of a second downlink signal configured for path loss determination between a second reference signal from a second transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration;

a symbol or a group of symbols of the one or more of the reference signals;

a type of a first uplink channel affected in response to the one or more of the reference signals not being transmitted due to a fifth collision with a second other uplink PHY channel;

whether a second uplink channel affected is periodic, semi-persistent, or aperiodic in response to the one or more of the reference signals not being transmitted due to a sixth collision with a third other uplink PHY channel;

a DRX configuration of the UE; or

any combination thereof.

4. The method of claim 1 , further comprising:

receiving a second at least one reference signal resource configuration for transmitting reference signals after the transmission of the reference signal transmission report.

5. The method of claim 1 , wherein receiving the at least one reference signal resource configuration comprises receiving the at least one reference signal resource configuration from a location server.

6. The method of claim 1 , wherein receiving the at least one reference signal resource configuration comprises receiving the at least one reference signal resource configuration from a serving cell.

7. The method of claim 6 , wherein the serving cell comprises one of the one or more transmission-reception points.

8. The method of claim 1 , wherein the reference signals comprise sounding reference signals (SRS).

9. The method of claim 1 , wherein the network entity comprises one of a location server, a base station, or a transmission-reception point.

10. A user equipment (UE) configured for supporting positioning, comprising:

an external interface for receiving and sending messages;

at least one memory; and

at least one processor coupled to the external interface and the at least one memory, the at least one processor configured to:

receive, at the UE, at least one reference signal resource configuration for transmitting reference signals for positioning;

attempt to transmit, from the UE, one or more of the reference signals for positioning to one or more transmission-reception points based on the at least one reference signal resource configuration;

detect, at the UE, that the attempt to transmit the one or more of the reference signals was not in accordance with the at least one reference signal resource configuration; and

transmit, from the UE, a reference signal transmission report to a network entity, the reference signal transmission report indicating that one or more of the reference signals attempted to be transmitted from the UE were not transmitted from the UE according to the at least one reference signal resource configuration, and indicating reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration, wherein the indicated reasons comprise one or more of:

the UE was unable to transmit the one or more of the reference signals;

the one or more of the reference signals were transmitted with lower power than configured by the at least one reference signal resource configuration;

the one or more of the reference signals were transmitted on a different beam than configured by the at least one reference signal resource configuration; or

any combination thereof.

11. The UE of claim 10 , wherein the reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration comprise one or more of:

unable to transmit due to a serving Cell change;

unable to transmit due to a first collision with a downlink symbol;

unable to transmit due to a second collision with a first other uplink physical (PHY) channel;

unable to transmit due to the at least one reference signal resource configuration being outside an active bandwidth part;

unable to transmit due to a third collision with uplink or downlink radio frequency retuning time;

the one or more of the reference signals were transmitted with a first lower power than configured by the at least one reference signal resource configuration due to at least one of Carrier Aggregation Power limitations, Dual Connectivity (DC), or Maximum Permissible Exposure (MPE);

the one or more of the reference signals were transmitted using a first spatial relation different than configured by the at least one reference signal resource configuration due to a fourth collision of a configured spatial relation with one of a higher priority channel;

unable to transmit due to being in a discontinuous reception (DRX) mode;

the one or more of the reference signals were transmitted with a second lower power than configured by the at least one reference signal resource configuration due to a low battery state associated with the UE; or

any combination thereof.

12. The UE of claim 11 , wherein the reference signal transmission report further indicates one or more of:

a slot ID, a subframe ID, or a frame ID that contains the one or more of the reference signals;

a resource ID or resource set ID of the one or more of the reference signals;

a first reference ID of a first downlink signal configured for a second spatial relation between a first reference signal from a first transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration in response to the one or more of the reference signals not being transmitted according to a spatial relation configuration of the at least one reference signal resource configuration;

a spatial relation information associated with the one or more of the reference signals in response to the one or more of the reference signals being transmitted using a different spatial relation than configured by the at least one reference signal resource configuration;

a second reference ID of a second downlink signal configured for path loss determination between a second reference signal from a second transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration;

a symbol or a group of symbols of the one or more of the reference signals;

a type of a first uplink channel affected in response to the one or more of the reference signals not being transmitted due to a fifth collision with a second other uplink PHY channel;

whether a second uplink channel affected is periodic, semi-persistent, or aperiodic in response to the one or more of the reference signals not being transmitted due to a sixth collision with a third other uplink PHY channel;

a DRX configuration of the UE; or

any combination thereof.

13. The UE of claim 10 , wherein the at least one processor is further configured to:

receive a second at least one reference signal resource configuration for transmitting reference signals after the transmission of the reference signal transmission report.

14. The UE of claim 10 , wherein, to receive the at least one reference signal resource configuration, the at least one processor is configured to receive the at least one reference signal resource configuration from a location server.

15. The UE of claim 10 , wherein, to receive the at least one reference signal resource configuration, the at least one processor is configured to receive the at least one reference signal resource configuration from a serving cell.

16. The UE of claim 15 , wherein the serving cell comprises one of the one or more transmission-reception points.

17. The UE of claim 10 , wherein the reference signals comprise sounding reference signals (SRS).

18. The UE of claim 10 , wherein the network entity comprises one of a location server, a base station, or a transmission-reception point.

19. A user equipment (UE) configured for supporting positioning, comprising:

means for receiving, at the UE, at least one reference signal resource configuration for transmitting reference signals for positioning;

means for attempting to transmit, from the UE, one or more of the reference signals for positioning to one or more transmission-reception points based on the at least one reference signal resource configuration;

means for detecting, at the UE, that the attempt to transmit the one or more of the reference signals was not in accordance with the at least one reference signal resource configuration; and

means for transmitting, from the UE, a reference signal transmission report to a network entity, the reference signal transmission report indicating that one or more of the reference signals attempted to be transmitted from the UE were not transmitted from the UE according to the at least one reference signal resource configuration, and indicating reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration, wherein the indicated reasons comprise one or more of:

the UE was unable to transmit the one or more of the reference signals;

the one or more of the reference signals were transmitted with lower power than configured by the at least one reference signal resource configuration;

the one or more of the reference signals were transmitted on a different beam than configured by the at least one reference signal resource configuration; or

any combination thereof.

20. The UE of claim 19 , wherein the reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration comprise one or more of:

unable to transmit due to a serving Cell change;

unable to transmit due to a first collision with a downlink symbol;

unable to transmit due to a second collision with a first other uplink physical (PHY) channel;

unable to transmit due to the at least one reference signal resource configuration being outside an active bandwidth part;

unable to transmit due to a third collision with uplink or downlink radio frequency retuning time;

the one or more of the reference signals were transmitted with a first lower power than configured by the at least one reference signal resource configuration due to at least one of Carrier Aggregation Power limitations, Dual Connectivity (DC), or Maximum Permissible Exposure (MPE);

the one or more of the reference signals were transmitted using a first spatial relation different than configured by the at least one reference signal resource configuration due to a fourth collision of a configured spatial relation with one of a higher priority channel;

unable to transmit due to being in a discontinuous reception (DRX) mode;

the one or more of the reference signals were transmitted with a second lower power than configured by the at least one reference signal resource configuration due to a low battery state associated with the UE; or

any combination thereof.

21. The UE of claim 20 , wherein the reference signal transmission report further indicates one or more of:

a slot ID, a subframe ID, or a frame ID that contains the one or more of the reference signals;

a resource ID or resource set ID of the one or more of the reference signals;

a first reference ID of a first downlink signal configured for a second spatial relation between a first reference signal from a first transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration in response to the one or more of the reference signals not being transmitted according to a spatial relation configuration of the at least one reference signal resource configuration;

a spatial relation information associated with the one or more of the reference signals in response to the one or more of the reference signals being transmitted using a different spatial relation than configured by the at least one reference signal resource configuration;

a second reference ID of a second downlink signal configured for path loss determination between a second reference signal from a second transmission-reception point and one or more of the reference signals configured with the at least one reference signal resource configuration;

a symbol or a group of symbols of the one or more of the reference signals;

a type of a first uplink channel affected in response to the one or more of the reference signals not being transmitted due to a fifth collision with a second other uplink PHY channel;

whether a second uplink channel affected is periodic, semi-persistent, or aperiodic in response to the one or more of the reference signals not being transmitted due to a sixth collision with a third other uplink PHY channel;

a DRX configuration of the UE; or

any combination thereof.

22. The UE of claim 19 , wherein the network entity comprises one of a first location server, a base station, or a transmission-reception point, and wherein the means for receiving the at least one reference signal resource configuration comprises means for receiving the at least one reference signal resource configuration from a second location server or from a serving cell, wherein the serving cell comprises one of the one or more transmission-reception points.

23. The UE of claim 19 , wherein the reference signals comprise sounding reference signals (SRS).

24. A non-transitory storage medium including program code stored thereon, the program code configures at least one processor in a user equipment (UE) for supporting positioning, comprising:

program code to receive, at the UE, at least one reference signal resource configuration for transmitting reference signals for positioning;

program code to attempt to transmit, from the UE, the reference signals for positioning to one or more transmission-reception points based on the at least one reference signal resource configuration;

program code to detect, at the UE, that the attempt to transmit the one or more of the reference signals was not in accordance with the at least one reference signal resource configuration; and

program code to transmit, from the UE, a reference signal transmission report to a network entity, the reference signal transmission report indicating that one or more of the reference signals attempted to be transmitted from the UE were not transmitted from the UE according to the at least one reference signal resource configuration, and indicating reasons that the one or more of the reference signals were not transmitted with the at least one reference signal resource configuration, wherein the indicated reasons comprise one or more of:

the UE was unable to transmit the one or more of the reference signals;

the one or more of the reference signals were transmitted with lower power than configured by the at least one reference signal resource configuration;

the one or more of the reference signals were transmitted on a different beam than configured by the at least one reference signal resource configuration; or

any combination thereof.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE FIFTH INVENTOR'S EXECUTION DATE PREVIOUSLY RECORDED AT REEL: 055210 FRAME: 0411. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 18, 2022
From: MANOLAKOS, ALEXANDROS; AKKARAKARAN, SONY; OPSHAUG, GUTTORM RINGSTAD; FISCHER, SVEN; CHEN, WANSHI; LUO, TAO; GAAL, PETER
To: QUALCOMM INCORPORATED
Reel/Frame 059118/0166 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2021
From: MANOLAKOS, ALEXANDROS; AKKARAKARAN, SONY; OPSHAUG, GUTTORM RINGSTAD; FISCHER, SVEN; CHEN, WANSHI; LUO, TAO; GAAL, PETER
To: QUALCOMM INCORPORATED
Reel/Frame 055210/0411 →
Continuity (2)
Provisional Application 62915551 · Oct 15, 2019
Related Publication 20210112474A1 · Apr 15, 2021
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