Channel state information processing in communication networks

Patent metadata

Field	Value
Publication number	US-12531615-B2
Application number	US-202318448927-A
Country	US
Kind code	B2
Filing date	Aug 12, 2023
Priority date	Aug 12, 2023
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

A user equipment (UE) that includes one or more non-transitory computer-readable media storing one or more computer-executable instructions for processing channel state information (CSI) and at least one processor coupled to the one or more non-transitory computer-readable media is provided. The processor is configured to execute the one or more computer-executable instructions to cause the UE to receive first information from a base station (BS) regarding a plurality of occasions to transmit a CSI report at each of the plurality of occasions; receive second information from the BS to identify one or more durations during which the UE determines whether to forgo processing the CSI for the CSI report; process the CSI for first occasions of the plurality of occasions that are not within the one or more durations; and forgo processing the CSI for second occasions of the plurality of occasions that are within the one or more durations.

First claim

What is claimed is:

1 . A user equipment (UE), comprising:
one or more non-transitory computer-readable media storing one or more computer-executable instructions for processing channel state information (CSI); and at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the one or more computer-executable instructions to cause the UE to:
receive first information from a base station (BS) regarding a plurality of occasions to transmit a CSI report at each of the plurality of occasions;
receive second information from the BS to identify one or more durations during which the UE determines whether to forgo processing the CSI for the CSI report;
process the CSI for first occasions of the plurality of occasions that are not within the one or more durations; and
forgo processing the CSI for second occasions of the plurality of occasions that are within the one or more durations.

2 . The UE of claim 1 , wherein the at least one processor is further configured to execute the one or more instructions to cause the UE to transmit the CSI report at the first occasions.

3 . The UE of claim 1 , wherein the first information is received through one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI).

4 . The UE of claim 1 , wherein the second information is received through one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI).

5 . The UE of claim 1 , wherein the first and second information are received through a same one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI).

6 . The UE of claim 1 , wherein forgoing processing the CSI comprises:
forgoing updating the CSI for the CSI report.

7 . The UE of claim 6 , wherein forgoing processing the CSI further comprises forgoing transmitting the CSI report to the BS at the second occasions.

8 . The UE of claim 6 , wherein foregoing processing the CSI further comprises transmitting a previously transmitted CSI report to the BS at the second occasions.

9 . The UE of claim 1 , wherein foregoing processing the CSI comprises transmitting the CSI report to the BS at the second occasions, wherein the CSI report comprises a channel quality indicator (CQI) field comprising a specific code point indicating that a channel quality of a link from the BS to the UE is below a threshold.

10 . The UE of claim 1 , wherein:
foregoing processing the CSI comprises transmitting the CSI report to the BS at the second occasions, the CSI report comprises a combination of a first specific code point of a channel quality indicator (CQI) field and a second specific code point of a rank indicator (RI) field, the first specific code point is ‘0’ in decimal number, and the second specific code point is one of a code point indicating a maximum transmission rank and a code point that is reserved, or is not used, for the CSI report.

11 . The UE of claim 1 , wherein the CSI report conveys information related to the propagation path between the UE and the BS.

12 . The UE of claim 1 , wherein the at least one processor is further configured to execute the one or more instructions to cause the UE to:
transmit a capability report to the BS indicating information associated with the one or more durations in terms of one or more of a length of the durations and a periodicity of the durations; and receive the information to identify the one or more durations from the BS in response to transmitting the capability report.

13 . The UE of claim 1 , further comprising:
a higher-layer processing unit configured to transmit an indication to forgo processing the CSI; and a wireless transmission and reception unit configured to process the CSI for the CSI report for the first occasions even after receiving the indication from the higher-layer processing unit.

14 . The UE of claim 1 , further comprising:
a higher-layer processing unit configured to transmit an indication to forgo processing the CSI; and a wireless transmission and reception unit configured to forgo processing the CSI for the CSI report for the second occasions after receiving the indication from the higher-layer processing unit.

15 . A method of processing channel state information (CSI) by a user equipment (UE), the method comprising:
receiving first information from a base station (BS) regarding a plurality of occasions to transmit a CSI report at each of the plurality of occasions; receiving second information from the BS to identify one or more durations during which the UE determines whether to forgo processing the CSI for the CSI report; processing the CSI for first occasions of the plurality of occasions that are not within the one or more durations; and forgoing processing the CSI for second occasions of the plurality of occasions that are within the one or more durations.

Assignees

• Sharp Kk

Inventors

• Yoshimura Tomoki
• Yin Zhanping
• Shrivastava Rudraksh
• Ishii Atsushi

Classifications

• H04W24/10

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

• H04W72/231

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title

• H04B7/0626 Primary

  Channel coefficients, e.g. channel state information [CSI] · CPC title