Granted Patent B2

US 12,289,616 · App. 17/791,922 · Granted Apr 29, 2025

Inventor: Jianfei Cao (Beijing, CN)

H04W16/28H04L5/0051H04W24/10

Abstract

Claims (42)

1. An electronic apparatus for wireless communications, comprising:

processing circuitry, configured to:

acquire, from a base station, configuration information of a unified transmission configuration indication state, wherein, the unified transmission configuration indication state is used to indicate both a downlink beam and an uplink beam; and

perform an operation related to beam management based on the configuration information,

wherein the configuration information of the unified transmission configuration indication state comprises individual configuration information for an uplink transmission configuration indication state and for a downlink transmission configuration indication state, and

wherein the uplink transmission configuration indication state and the downlink transmission configuration indication state at least partially share identifiers, and the processing circuitry is further configured to:

acquire, from the base station, a media access control-control element comprising an identifier of a target transmission configuration indication state, and simultaneously activate or deactivate, in a case that the identifier of the acquired target transmission configuration indication state is a shared identifier, the uplink transmission configuration indication state and the downlink transmission configuration indication state corresponding to the shared identifier.

2. The electronic apparatus according to claim 1 , wherein the configuration information of the unified transmission configuration indication state comprises an index to a reference signal among an uplink reference signal and a downlink reference signal,

wherein the uplink reference signal comprises a sounding reference signal, and the downlink reference signal comprises a channel state information-reference signal and a synchronization signal block.

3. The electronic apparatus according to claim 2 , wherein the processing circuitry is further configured to receive an indication for a target transmission configuration indication state via a media access control-control element or downlink control information.

4. The electronic apparatus according to claim 3 , wherein the processing circuitry is further configured to measure the downlink reference signal using one or more specified antenna panels.

5. The electronic apparatus according to claim 4 , wherein the processing circuitry is further configured to:

acquire, from the base station, information of the one or more specified antenna panels; or

determine one or more antenna panels by itself, and report identifiers of the one or more antenna panels to the base station.

6. The electronic apparatus according to claim 3 , wherein in a case that the unified transmission configuration indication state comprises an index to an uplink reference signal, the processing circuitry is configured to:

determine to transmit an uplink channel using a transmitting beam for transmitting the uplink reference signal corresponding to the target transmission configuration indication state, and receive a downlink channel using the transmitting beam.

7. The electronic apparatus according to claim 4 , wherein in a case that the unified transmission configuration indication state comprises an index to the downlink reference signal, the processing circuitry is configured to:

determine to receive a downlink channel using a receiving beam previously for measuring a downlink reference signal corresponding to the target transmission configuration indication state, and transmit an uplink channel using the receiving beam.

8. The electronic apparatus according to claim 7 , wherein the receiving beam is a beam on the one or more specified antenna panels, or

wherein the receiving beam corresponds to a transmitting beam of a sounding reference signal.

9. The electronic apparatus according to claim 8 , wherein the processing circuitry is further configured to:

report, in a case that a failure occurs on uplink transmission or in a case that radiation exceeds maximum permissible exposure, an identifier of the target transmission configuration indication state to the base station, to cause the base station to determine a corresponding antenna panel based on the identifier.

10. The electronic apparatus according to claim 9 , wherein the processing circuitry is configured to perform reporting through the media access control-control element or radio resource control signaling.

11. An electronic apparatus for wireless communications, comprising:

processing circuitry, configured to:

transmit, to user equipment, configuration information of a unified transmission configuration indication state, wherein the unified transmission configuration indication state is used to indicate both a downlink beam and an uplink beam; and

perform an operation related to beam management based on the configuration information,

wherein the configuration information of the unified transmission configuration indication state comprises individual configuration information for an uplink transmission configuration indication state and for a downlink transmission configuration indication state, and

wherein the uplink transmission configuration indication state and the downlink transmission configuration indication state at least partially share identifiers, and the processing circuitry is further configured to:

transmit, to the user equipment, a media access control-control element comprising an identifier of a target transmission configuration indication state as a shared identifier, to simultaneously activate or deactivate the uplink transmission configuration indication state and the downlink transmission configuration indication state corresponding to the shared identifier.

12. The electronic apparatus according to claim 11 , wherein the configuration information of the unified transmission configuration indication state comprises an index to a reference signal among an uplink reference signal and a downlink reference signal,

wherein the uplink reference signal comprises a sounding reference signal, and the downlink reference signal comprises a channel state information-reference signal and a synchronization signal block.

13. The electronic apparatus according to claim 12 , wherein the processing circuitry is further configured to transmit, to the user equipment, an indication for a target transmission configuration indication state via a media access control-control element or downlink control information.

14. The electronic apparatus according to claim 12 , wherein the user equipment measures the downlink reference signal using one or more specified antenna panels, and the processing circuitry is further configured to:

receive, from the user equipment, an identifier of the unified transmission configuration indication state, to determine that a failure occurs on uplink transmission or to determine that radiation exceeds maximum permissible exposure on an antenna panel corresponding to the unified transmission configuration indication state.

15. The electronic apparatus according to claim 14 , wherein the processing circuitry is configured to receive the identifier through the media access control-control element or radio resource control signaling.

16. A method for wireless communications, comprising:

acquiring, from a base station, configuration information of a unified transmission configuration indication state, wherein, the unified transmission configuration indication state is used to indicate both a downlink beam and an uplink beam; and

performing an operation related to beam management based on the configuration information,

wherein the configuration information of the unified transmission configuration indication state comprises individual configuration information for an uplink transmission configuration indication state and for a downlink transmission configuration indication state, and

wherein the uplink transmission configuration indication state and the downlink transmission configuration indication state at least partially share identifiers, and the method further comprises:

acquiring, from the base station, a media access control-control element comprising an identifier of a target transmission configuration indication state, and simultaneously activating or deactivating, in a case that the identifier of the acquired target transmission configuration indication state is a shared identifier, the uplink transmission configuration indication state and the downlink transmission configuration indication state corresponding to the shared identifier.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (19)