CN-122029751-A - Methods and programs for dual-base and multi-base sensing

Abstract

A wireless transceiver/receiver unit configured to transmit a message to a network, such as a serving network, wherein the message indicates one or more Channel State Information (CSI) measurements supported by a WTRU, receive a plurality of Reference Signals (RSs), wherein each of the plurality of RSs is associated with a plurality of configured resource sets, determine respective sensing performance values for each of the configured resource sets associated with the plurality of RSs based on Mutual Information (MI) associated with the plurality of RSs, determine respective Precoding Matrix Indicator (PMI) sets for each of the configured resource sets based on the respective sensing performance values for each of the configured resource sets, and transmit a sensing report indicating the respective PMI sets and the respective sensing performance values for each respective configured resource set in the configured resource sets.

Inventors

• J. Roca El Nando
• I. Hemad
• Y. Mestra
• Alan Mullard

Assignees

• 交互数字专利控股公司

Dates

Publication Date

20260512

Application Date

20240809

Priority Date

20230811

Claims (20)

1. 1. A wireless transceiver/receiver unit (WTRU) comprising: A processor configured to: Transmitting a message to a network, the message indicating one or more Channel State Information (CSI) measurements supported by the WTRU; receiving a plurality of Reference Signals (RSs), wherein the plurality of RSs are associated with a plurality of configured resource sets; determining respective sensing performance values for each of a set of configured resources associated with the plurality of RSs based on Mutual Information (MI) associated with the plurality of RSs; determining a respective set of Precoding Matrix Indicators (PMIs) for each of the configured set of resources based on the respective sensed performance values for each of the configured set of resources, and A sensing report is sent indicating a respective PMI set and a respective sensing performance value for each respective one of the configured resource sets.
2. 2. The WTRU of claim 1, wherein the processor is further configured to: configuration information including spatial characteristics of the plurality of RSs is received.
3. 3. The WTRU of claim 1 wherein the PMI set is determined based on a sensing performance value of each respective set of configured resources within a predetermined range.
4. 4. The WTRU of claim 1 wherein the message includes an indication of 1) supported performance metrics for bi-or multi-base sensing, or 2) a sensing codebook supported by the WTRU.
5. 5. The WTRU of claim 4 wherein the supported performance metrics for dual or multi-base sensing include any of Minimum Mean Square Error (MMSE), signal-to-noise ratio (SNR), reference Signal Received Power (RSRP), root Mean Square (RMS) error of ranging estimates, RMS error of angle of arrival (AoA) estimates, RMS error of phase estimates, or RMS error of velocity estimates.
6. 6. The WTRU of claim 1 wherein the sensing performance value comprises a Minimum Mean Square Error (MMSE) value below a threshold.
7. 7. The WTRU of claim 1 wherein the sensing performance value comprises a Mean Square Error (MSE) value below a threshold.
8. 8. The WTRU of claim 1 wherein MI is a metric characterizing an amount of information carried by a channel associated with each of the configured set of resources.
9. 9. The WTRU of claim 1 wherein the sensing report includes a sensing codebook index for each Channel State Information (CSI) RS resource indicator (CRI).
10. 10. The WTRU of claim 1, wherein the sensing performance value of the configured set of resources indicates a statistical error associated with the amount of sensing measured for the configured set of resources.
11. 11. A method performed by a wireless transmit/receive unit (WTRU), the method comprising: Transmitting a message to a network, the message indicating one or more Channel State Information (CSI) measurements supported by the WTRU; receiving a plurality of Reference Signals (RSs), wherein the plurality of RSs are associated with a plurality of configured resource sets; determining respective sensing performance values for each of a set of configured resources associated with the plurality of RSs based on Mutual Information (MI) associated with the plurality of RSs; determining a respective set of Precoding Matrix Indicators (PMIs) for each of the configured set of resources based on the respective sensed performance values for each of the configured set of resources, and A sensing report is sent indicating a respective PMI set and a respective sensing performance value for each respective one of the configured resource sets.
12. 12. The method of claim 11, further comprising: configuration information including spatial characteristics of the plurality of RSs is received.
13. 13. The method of claim 11, wherein the PMI set is determined based on a sensing performance value of each respective set of configured resources within a predetermined range.
14. 14. The method of claim 11, wherein the message includes an indication of 1) supported performance metrics for bi-or multi-base sensing, or 2) a sensing codebook supported by the WTRU.
15. 15. The method of claim 14, wherein the supported performance metrics for dual-base or multi-base sensing comprise any one of Minimum Mean Square Error (MMSE), signal-to-noise ratio (SNR), reference Signal Received Power (RSRP), root Mean Square (RMS) error of ranging estimates, RMS error of angle of arrival (AoA) estimates, RMS error of phase estimates, or RMS error of velocity estimates.
16. 16. The method of claim 11, wherein the sensing performance value comprises a Minimum Mean Square Error (MMSE) value below a threshold.
17. 17. The method of claim 11, wherein the sensing performance value comprises a Mean Square Error (MSE) value below a threshold.
18. 18. The method of claim 11, wherein MI is a metric characterizing an amount of information carried by a channel associated with each of the configured set of resources.
19. 19. The method of claim 11, wherein the sensing report comprises a sensing codebook index for each Channel State Information (CSI) RS resource indicator (CRI).
20. 20. The method of claim 11, wherein the sensing performance value of the configured set of resources indicates a statistical error associated with the sensing metric measured for the configured set of resources.

Description

Methods and programs for dual-base and multi-base sensing Cross-reference to related application(s) The application claims the benefit of U.S. provisional application No. 63/518,908, filed on 8/11 at 2023, the entire contents of which are incorporated herein by reference. Background Typically, sensing involves a beam scanning procedure by a transmitter entity in which sweeping beams are generated to cover a target area in the environment (e.g., following a sequential order, and the receiver captures their reflections). In dual-base and multi-base sensing, a measurement entity (e.g., a wireless transceiver/receiver unit (WTRU)) must detect one or more copies of the signal reflected by the environment from one or more sensing beams and perform measurements (e.g., delay, power, angle of arrival (AoA), etc.) to identify its scatterers. In single-base sensing, the receiving entity is co-located with the transmitter. It performs detection either simultaneously with the transmission (e.g., in full duplex mode) or after the transmission is completed (e.g., in half duplex mode). The dual-base or multi-base scenario may include one or more Transmission Reception Points (TRPs) as a transmitting entity for sensing in the downlink and one or more WTRUs as receivers for performing sensing measurements and reporting the measurements back to the network. Similar dual-base or multi-base scenarios may involve two or more WTRUs, two or more Base Stations (BSs), and/or a transmitting WTRU and a receiving BS. Disclosure of Invention A wireless transceiver/receiver unit (WTRU) may include a processor. The processor may be configured to send a message to a network, such as a serving network. The message may indicate one or more Channel State Information (CSI) measurements supported by the WTRU. The processor may be configured to receive a plurality of Reference Signals (RSs), wherein each of the plurality of RSs is associated with a plurality of configured resource sets. The processor may be configured to determine a respective sensing performance value for each of a set of configured resources associated with the plurality of RSs based on Mutual Information (MI) associated with the plurality of RSs. For example, the sensing performance value may be a Minimum Mean Square Error (MMSE) or Mean Square Error (MSE) value below a threshold. For example, the sensing performance value of the configured set of resources indicates a statistical error associated with the sensing metric measured for the configured set of resources. In some examples, the MI may be a metric characterizing the amount of information carried by the channel associated with each of the configured set of resources. The processor may be configured to determine a respective set of Precoding Matrix Indicators (PMIs) for each of the configured resource sets based on the respective sensed performance values for each of the configured resource sets. For example, the processor may be configured to determine the PMI set based on the configured set of resources having a sensing performance value within a predetermined range. The processor may be configured to send a sensing report indicating a respective PMI set and a respective sensing performance value for each respective configured resource set of the configured resource sets. In some examples, the sensing report may be a sensing codebook index of each Channel State Information (CSI) RS resource indicator (CRI). The processor may be configured to receive configuration information including spatial characteristics of a plurality of RSs. For example, the PMI set may be determined based on the sensed performance value of each respective configured resource set being within a predetermined range. The message may be an indication of supported performance metrics for bi-or multi-base sensing and/or a sensing codebook supported by the WTRU. The supported performance metrics for dual-base or multi-base sensing may be any combination of (i) Minimum Mean Square Error (MMSE), (ii) signal-to-noise ratio (SNR), (iii) Reference Signal Received Power (RSRP), (iv) Root Mean Square (RMS) error of ranging estimates, (v) RMS error of angle of arrival (AoA) estimates, (vi) RMS error of phase estimates, and/or (vii) RMS error of velocity estimates. The WTRU may be configured to perform a method comprising one or more of the following steps. The method may include sending a message to a network, such as a serving network. The message may indicate one or more Channel State Information (CSI) measurements supported by the WTRU. The method may include receiving a plurality of Reference Signals (RSs), wherein each of the plurality of RSs is associated with a plurality of configured resource sets. The method may include determining a respective sensing performance value for each of a set of configured resources associated with the plurality of RSs based on Mutual Information (MI) associated with the plurality of RSs. For example, the sensing perform