Granted Patent B2

US 12,732,250 · App. 18/578,556 · Granted Sep 8, 2026

Inventor: Yajun Zhu (Beijing, CN)

Assignee: Beijing Xiaomi Mobile Software Co., Ltd.

H04B7/0626H04W24/10

Abstract

Claims (44)

1 . A method for channel state feedback, wherein the method is performed by a terminal device, and comprises:

sending predicted channel state information (CSI) to a network device at a first feedback moment;

wherein the method further comprises:

determining the first feedback moment according to first indication information;

wherein the first indication information comprises delay information k, and sending the predicted CSI to the network device at the first feedback moment further comprises:

determining predicted CSI at a moment t+k, wherein t is the first feedback moment, and t and k are positive numbers; and at the moment t, sending the predicted CSI at the moment t+k to the network device; or

determining predicted CSI from a moment t+k−m to a moment t+k, wherein t is the first feedback moment, m is a time length corresponding to the predicted CSI, and t, k, and m are positive numbers; and at the moment t, sending the predicted CSI from the moment t+k−m to the moment t+k to the network device.

2 . The method according to claim 1 , wherein the first indication information is configuration information, and determining the first feedback moment according to the first indication information comprises:

determining the first feedback moment according to a number of reporting, a reporting cycle, and at least one of a reporting moment or delay information of the CSI indicated by the configuration information.

3 . The method according to claim 1 , wherein the first indication information is a trigger instruction, and determining the first feedback moment according to the first indication information comprises:

receiving configuration information, wherein the configuration information indicates a number of reporting, a reporting cycle, and at least one of a reporting moment and/or or delay information of the CSI; and

determining the first feedback moment according to a receiving moment of the trigger instruction and the number of reporting, the reporting cycle, and the at least one of the reporting moment or the delay information indicated by the configuration information.

4 . The method according to claim 1 , further comprising one of:

receiving a radio resource control (RRC) message, wherein the RRC message comprises the first indication information;

receiving a medium access control (MAC) control element (CE), wherein the MAC CE comprises the first indication information; or

receiving downlink control information (DCI), wherein the DCI comprises the first indication information.

5 . The method according to claim 1 , further comprising:

determining the predicted CSI based on a channel measurement result in a first time period before the first feedback moment.

6 . A method for channel state feedback, wherein the method is performed by a network device, and comprises:

receiving predicted channel state information (CSI) sent by a terminal device at a first feedback moment;

wherein the method further comprises:

determining the first feedback moment according to an agreement; and

sending first indication information; wherein the first indication information indicates the first feedback moment and comprises delay information k, and receiving the predicted CSI sent by the terminal device at the first feedback moment comprises one of:

at the first feedback moment t, receiving predicted CSI at a moment t+k sent by the terminal device; or

at the first feedback moment t, receiving predicted CSI from a moment t+k−m to the moment t+k sent by the terminal device, wherein m is a time length corresponding to the predicted CSI, and t, k and m are positive numbers.

7 . The method according to claim 6 , wherein the first indication information comprises at least one of:

a number of reporting of the CSI;

a reporting cycle of the CSI;

a reporting moment of the CSI; or

delay information.

8 . The method according to claim 6 , further comprising one of:

sending a radio resource control (RRC) message, wherein the RRC message comprises the first indication information;

sending a medium access control (MAC) control element (CE), wherein the MAC CE comprises the first indication information; or

sending downlink control information (DCI), wherein the DCI comprises the first indication information.

9 . A terminal device, comprising:

a processor; and

a memory storing a computer program executable by the processor, wherein the processor is configured to send predicted channel state information (CSI) to a network device at a first feedback moment;

wherein the processor is further configured to:

determine the first feedback moment according to first indication information; wherein the first indication information comprises delay information k, and the processor is further configured to:

determine predicted CSI at a moment t+k, wherein t is the first feedback moment, and t and k are positive numbers; and at the moment t, send the predicted CSI at the moment t+k to the network device; or

determine predicted CSI from a moment t+k−m to a moment t+k, wherein t is the first feedback moment, m is a time length corresponding to the predicted CSI, and t, k, and m are positive numbers; and at the moment t, send the predicted CSI from the moment t+k−m to the moment t+k to the network device.

10 . A network device, comprising:

a processor; and

a memory storing a computer program executable by the processor, wherein the processor is configured to perform the method according to claim 6 .

Assignments (1)

Continuity (1)

References Cited (19)