Ri/cqi prediction for multiple predicted csi

Patent metadata

Field	Value
Publication number	US-2025344090-A1
Application number	US-202418656128-A
Country	US
Kind code	A1
Filing date	May 6, 2024
Priority date	May 6, 2024
Publication date	Nov 6, 2025
Grant date	—

Abstract

A method implemented by a wireless transmit receive unit (WTRU) may include receiving configuration information from a network, and receiving network assistance information for CSI prediction from the network. The method may include determining historical channel measurements based on a plurality of measurement resources, such as historical quality-based metrics based on Interference Measurement Resources (IMRs) and historical CSI measurements based on channel measurement resources. The method may include determining a CSI prediction value for a future CSI prediction instance based on the historical channel measurements, such as the historical CSI measurements. The method may include determining a quality-based metric for the future CSI prediction instance based on the historical channel measurements, such as the historical quality-based metrics and the network assistance information. The method may include sending an indication of the quality-based metric for the future CSI prediction instance to the network.

First claim

1 . A method implemented by a wireless transmit receive unit (WTRU), the method comprising:
receiving, from a network, configuration information and network assistance information for CSI prediction; determining historical channel measurements based on a plurality of measurement resources; determining a CSI prediction value for a future CSI prediction instance based on the historical channel measurements; determining a quality-based metric for the future CSI prediction instance based on the historical channel measurements and the network assistance information; and sending an indication of the quality-based metric for the future CSI prediction instance to the network.

2 . The method of claim 1 , wherein the network assistance information comprises one or more of: a time instance of a historical reference Interference Measurement Resource (IMR) set, a coefficient for interference scaling relative to the historical reference IMR set, or an indication of a future expected blockage; and
wherein the indication of the future expected blockage comprises one or more of: blockage information embedded into the coefficient for interference scaling, a condition used to determine blockage information, or an indication of a likelihood of a blockage at a future instance.

3 . The method of claim 1 , further comprising:
determining quality-based metrics based on Interference Measurement Resources (IMRs) and CSI measurements based on channel measurement resources, wherein the historical channel measurements comprise the quality-based metrics and the CSI measurements.

4 . The method of claim 3 , wherein the CSI prediction value for the future CSI prediction instance is based on the CSI measurements of the historical channel measurements.

5 . The method of claim 4 , wherein the quality-based metric for the future CSI prediction instance is based on the quality-based metrics of the historical channel measurements and the network assistance information.

6 . The method of claim 3 , wherein the configuration information comprises an indication of the channel measurement resources for determining the CSI measurements and an indication of a type of the assistance information.

7 . The method of claim 1 , wherein the quality-based prediction metric for the future CSI prediction instance comprises one or more of a rank indication (RI), a channel quality indicator (CQI) or a Signal-to-Interference-plus-Noise Ratio (SINR) for the future CSI prediction instance.

8 . The method of claim 1 , wherein the network assistance information comprises one or more time instances of historical reference IMRs and one or more coefficients for interference scaling relative to a historical reference IMR; and
wherein determining the quality-based metric for the future CSI prediction instance comprises determining an estimated interference value for the future CSI prediction instance based on the coefficient for interference scaling and the historical reference IMR.

9 . The method of claim 1 , wherein the network assistance information comprises an indication of future expected blockages; and
wherein determining the quality-based metric for the future CSI prediction instance comprises determining a decreased Rank Indicator (RI) quality-based metric based on the indication of future expected blockages.

10 . The method of claim 1 , wherein determining the quality-based metric for the future CSI prediction instance comprises predicting a Rank Indicator (RI) quality-based metric or a Channel Quality Information (CQI) quality-based metric for the future CSI prediction instance based on Artificial Intelligence Machine Learning (AIML) model; and
wherein the AIML model has inputs comprising one or more of: the CSI prediction value, a Signal-to-Interference-plus-Noise Ratio (SINR), an estimated interference, a WTRU trajectory, or an indication of future expected estimated blockages.

11 . A wireless transmit receive unit (WTRU), comprising:
a processor configured to: receive, from a network, configuration information and network assistance information for CSI prediction; determine historical channel measurements based on a plurality of measurement resources; determine a CSI prediction value for a future CSI prediction instance based on the historical channel measurements; determine a quality-based metric for the future CSI prediction instance based on the historical channel measurements and the network assistance information; and send an indication of the quality-based metric for the future CSI prediction instance to the network.

12 . The WTRU of claim 11 , wherein the network assistance information comprises one or more of: a time instance of a historical reference Interference Measurement Resource (IMR) set, a coefficient for interference scaling relative to the historical reference IMR set, or an indication of a future expected blockage; and
wherein the indication of the future expected blockage comprises one or more of: blockage information embedded into the coefficient for interference scaling, a condition used to determine blockage information, or an indication of a likelihood of a blockage at a future instance.

13 . The WTRU of claim 11 , wherein the processor is configured to:
determine quality-based metrics based on Interference Measurement Resources (IMRs) and CSI measurements based on channel measurement resources, wherein the historical channel measurements comprise the quality-based metrics and the CSI measurements.

14 . The WTRU of claim 13 , wherein the CSI prediction value for the future CSI prediction instance is based on the CSI measurements of the historical channel measurements.

15 . The WTRU of claim 14 , wherein the quality-based metric for the future CSI prediction instance is based on the quality-based metrics of the historical channel measurements and the network assistance information.

16 . The WTRU of claim 13 , wherein the configuration information comprises an indication of the channel measurement resources for determining the CSI measurements and an indication of the IMRs for determining the quality-based metrics.

17 . The WTRU of claim 11 , wherein the quality-based prediction metric for the future CSI prediction instance comprises one or more of a rank indication (RI), a channel quality indicator (CQI) or a Signal-to-Interference-plus-Noise Ratio (SINR) for the future CSI prediction instance.

18 . The WTRU of claim 11 , wherein the network assistance information comprises one or more time instances of historical reference IMRs and one or more coefficients for interference scaling relative to a historical reference IMR; and
wherein the quality-based metric for the future CSI prediction instance comprises an estimated interference value for the future CSI prediction instance that is determined based on the coefficient for interference scaling and the historical reference IMR.

19 . The WTRU of claim 11 , wherein the network assistance information comprises an indication of future expected blockages; and
wherein the quality-based metric for the future CSI prediction instance comprises a decreased Rank Indicator (RI) quality-based metric that is determined based on the indication of future expected blockages.

20 . The WTRU of claim 11 , wherein the processor is configured to:
determine the quality-based metric for the future CSI prediction instance based on a Rank Indicator (RI) quality-based metric or a Channel Quality Information (CQI) quality-based metric using an Artificial Intelligence Machine Lea

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Tan Ahmet Serdar
• Tooher Patrick
• Lee Moon Il
• Beluri Mihaela

Classifications

• H04L41/16

  using machine learning or artificial intelligence · CPC title

• H04B17/345

  Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title

• H04B17/373

  Predicting channel quality {or other radio frequency [RF]} parameters · CPC title

• H04B7/0632

  Channel quality parameters, e.g. channel quality indicator [CQI] · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title