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EP-4740547-A1 - APPARATUS AND METHOD OF WIRELESS COMMUNICATION

EP4740547A1EP 4740547 A1EP4740547 A1EP 4740547A1EP-4740547-A1

Abstract

A method of wireless communication of a user equipment (UE) includes receiving a configuration of one or more transmission control indication (TCI) states from a base station and transmitting a first message to the base station, wherein the first message indicates at least one of the one or more TCI states for an uplink/downlink communication with the base station.

Inventors

  • GUO, LI

Assignees

  • GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date
20260513
Application Date
20240705

Claims (20)

  1. A method of wireless communication of a user equipment (UE) , comprising: receiving a configuration of one or more transmission control indication (TCI) states from a base station; and transmitting a first message to the base station, wherein the first message indicates at least one of the one or more TCI states for an uplink/downlink communication with the base station.
  2. The method of claim 1, further comprising: monitoring one or more quality factors associated with the one or more TCI states; and identifying the at least one of the one or more TCI states for the uplink/downlink communication with the base station based on the one or more quality factors.
  3. The method of claim 1, further comprising: receiving a second message from the base station, wherein the second message indicates an acknowledgement of the at least one of the one or more TCI states for the uplink/downlink communication with the base station.
  4. The method of claim 3, wherein the second message comprises an acknowledge message to a physical uplink shared channel (PUSCH) carrying the first message, or the second message comprises a downlink control information (DCI) signaling.
  5. The method of claim 1, further comprising: performing the uplink/downlink communication with the base station based on the at least one of the one or more TCI states indicated in the first message.
  6. The method of claim 1, wherein the first message indicates a start time associated with the at least one of the one or more TCI states for the uplink/downlink communication with the base station.
  7. The method of claim 1, wherein the first message comprises a media access control (MAC) control element (CE) message or an uplink control information (UCI) message.
  8. The method of claim 1, wherein the first message comprises one or more of following information fields: one identity of a serving cell for which a MAC CE applies; one downlink bandwidth part (BWP) identifier (ID) used to indicate one downlink BWP for which the MAC CE applies; one uplink BWP ID used to indicate one uplink BWP for which the MAC CE applies; one field used to indicate one TCI state ID, wherein the TCI state ID is used to identify one joint TCI state for the base station and the UE to apply; one field used to indicate one downlink TCI state ID, wherein the downlink TCI state ID is used to identify one downlink TCI state for the base station and the UE to apply; and one field used to indicate one uplink TCI state ID, wherein the uplink TCI state ID is used to identify one UL TCI state.
  9. The method of claim 1, further comprising receiving a configuration of one or more component carriers (CCs) from the base station.
  10. The method of claim 9, further comprising switching the at least one of the one or more TCI states for the uplink/downlink communication with the base station for the one or more CCs.
  11. A method of wireless communication of a base station, comprising: transmitting, to a user equipment (UE) , a configuration of one or more transmission control indication (TCI) states; and receiving a first message from the UE, wherein the first message indicates at least one of the one or more TCI states based on one or more quality factors for an uplink/downlink communication with the UE.
  12. The method of claim 11, further comprising: generating a second message, wherein the second message indicates an acknowledgement of the at least one of the one or more TCI states for the uplink/downlink communication with the UE.
  13. The method of claim 12, wherein the second message comprises an acknowledge message to a physical uplink shared channel (PUSCH) carrying the first message, or the second message comprises a downlink control information (DCI) signaling.
  14. The method of claim 11, further comprising: performing the uplink/downlink communication with the UE based on the at least one of the one or more TCI states indicated in the first message.
  15. The method of claim 14, wherein performing the uplink/downlink communication with the UE based on the at least one of the one or more TCI states indicated in the first message comprises: initiating the uplink/downlink communication with the UE based on the at least one of the one or more TCI states at a start time indicated in the first message.
  16. The method of claim 11, wherein the first message indicates a start time associated with the at least one of the one or more TCI states for the uplink/downlink communication with the UE.
  17. The method of claim 11, wherein the first message comprises a media access control (MAC) control element (CE) message or an uplink control information (UCI) message.
  18. The method of claim 11, wherein the first message comprises one or more of following information fields: one identity of a serving cell for which a MAC CE applies; one downlink bandwidth part (BWP) identifier (ID) used to indicate one downlink BWP for which the MAC CE applies; one uplink BWP ID used to indicate one uplink BWP for which the MAC CE applies; one field used to indicate one TCI state ID, wherein the TCI state ID is used to identify one joint TCI state for the base station and the UE to apply; one field used to indicate one downlink TCI state ID, wherein the downlink TCI state ID is used to identify one downlink TCI state for the base station and the UE to apply; and one field used to indicate one uplink TCI state ID, wherein the uplink TCI state ID is used to identify one UL TCI state.
  19. The method of claim 11, further comprising transmitting, to the UE, a configuration of one or more component carriers (CCs) .
  20. The method of claim 19, further comprising requesting the UE to switch the at least one of the one or more TCI states for the uplink/downlink communication with the UE for the one or more CCs.

Description

APPARATUS AND METHOD OF WIRELESS COMMUNICATION TECHNICAL FIELD The present disclosure relates to the field of communication systems, and more particularly, to apparatuses and methods of wireless communication. BACKGROUND One drawback of a current method of beam indication/updating is that a base station controls a beam switch and updating, even though the base station may not know a beam quality with a high-degree of accuracy. This may cause various challenges. For instance, a beam indication operation might cause large signaling overhead and large latency. As another example, a system might switch to wrong beam due to lack of latest beam quality information. Therefore, there is a need for apparatuses and methods of wireless communication. SUMMARY An object of the present disclosure is to propose apparatuses and methods of wireless communication, which can solve issues in the prior art and other issues, support a system to switch to the best beam for downlink transmission and/or an uplink transmission with low latency and low signaling overhead, and/or improve a performance of the system. In a first aspect of the present disclosure, a method of wireless communication of a user equipment (UE) includes receiving a configuration of one or more transmission control indication (TCI) states from a base station and transmitting a first message to the base station, wherein the first message indicates at least one of the one or more TCI states for an uplink/downlink communication with the base station. In a second aspect of the present disclosure, a UE includes a receiver and a transmitter. The receiver is configured to receive a configuration of one or more transmission control indication (TCI) states from a base station. The transmitter is configured to transmit a first message to the base station, wherein the first message indicates at least one of the one or more TCI states for an uplink/downlink communication with the base station. In a third aspect of the present disclosure, a UE includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The UE is configured to perform the above method. In a fourth aspect of the present disclosure, a method of wireless communication of a base station includes transmitting, to a user equipment (UE) , a configuration of one or more transmission control indication (TCI) states and receiving a first message from the UE, wherein the first message indicates at least one of the one or more TCI states based on one or more quality factors for an uplink/downlink communication with the UE. In a fifth aspect of the present disclosure, a base station includes a transmitter and a receiver. The transmitter is configured to transmit, to a user equipment (UE) , a configuration of one or more transmission control indication (TCI) states. The receiver is configured to receive a first message from the UE, wherein the  first message indicates at least one of the one or more TCI states based on one or more quality factors for an uplink/downlink communication with the UE. In a sixth aspect of the present disclosure, a base station includes a memory, a transceiver, and a processor coupled to the memory and the transceiver. The base station is configured to provide the above method. In a seventh aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method. In an eighth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method. In a ninth aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method. In a tenth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method. In an eleventh aspect of the present disclosure, a computer program causes a computer to execute the above method. BRIEF DESCRIPTION OF DRAWINGS In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise. FIG. 1 is a block diagram of one or more user equipments (UEs) and a base station of communication in a communication network system according to an embodiment of the present disclosure. FIG. 2 is a block diagram of a UE according to an embodiment of the present disclosure. FIG. 3 is a block diagram of a UE according to an embodiment of the present disclosure. FIG. 4 is a flowchart illustrating a meth