Method for indicating or determining transmission configuration indication states, and device, and computer storage medium

Patent metadata

Field	Value
Publication number	US-12574183-B2
Application number	US-202017800300-A
Country	US
Kind code	B2
Filing date	Feb 19, 2020
Priority date	Feb 19, 2020
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

A communication processing method, applied to a network device, includes: indicating transmission configuration indication (TCI) states of a plurality of channels to a user equipment (UE) using a set of TCI state indication signalings.

First claim

The invention claimed is:

1 . A method for indicating transmission configuration indication (TCI) states, performed by a network device, comprising:
indicating TCI states of a plurality of channels to a user equipment (UE) using a set of TCI state indication signalings; wherein the set of TCI state indication signalings comprises a radio resource control (RRC) signaling, a medium access control (MAC) signaling, and a first downlink control information (DCI) signaling; the RRC signaling indicates information of a set of TCI states, the information of the set of TCI states comprises M TCI states, and M is a positive integer; the MAC signaling activates N TCI states in the set of TCI states in the RRC signaling, N is a positive integer, and N is less than M; and the first DCI signaling indicates one first TCI state in the N TCI states activated by the MAC signaling, the first TCI state indicates a reception beam of a physical downlink shared channel (PDSCH) and a transmission beam of a physical uplink shared channel (PUSCH); wherein, a third TCI state in the N TCI states activated by the MAC signaling indicates a beam of a control channel, and the third TCI state comprises one TCI state with a smallest TCI state number or a largest TCI state number in the N TCI states; wherein, the plurality of channels comprises physical downlink control channels (PDCCHs) and physical uplink control channels (PUCCHs), and the PUCCHs are PUCCHs having a preset time relationship with the PDCCHs.

2 . The method as claimed in claim 1 , wherein the plurality of channels comprises channels on one component carrier (CC) or one bandwidth part (BWP).

3 . The method as claimed in claim 1 , wherein the plurality of channels comprises channels on a plurality of component carriers (CCs) or a plurality of bandwidth parts (BWPs).

4 . The method as claimed in claim 1 , wherein TCI state indication fields in different DCI signalings indicate the reception beam of the PDSCH and the transmission beam of the PUSCH, respectively.

5 . The method as claimed in claim 1 , wherein a TCI state indication field in a same DCI signaling indicates the reception beam of the PDSCH and the transmission beam of the PUSCH, and the DCI signaling is a DCI signaling of scheduling the PDSCH and/or the PUSCH.

6 . The method as claimed in claim 1 , wherein the set of TCI state indication signalings comprises a plurality of signalings;
indicating the TCI states of the plurality of channels to the UE using the set of TCI state indication signalings comprises: at least one signaling in the set of TCI state indication signalings for indicating the TCI states of the plurality of channels is shared.

7 . A non-transitory computer storage medium having stored therein executable instructions that, when executed by a processor, causes the processor to perform the method for indicating transmission configuration indication (TCI) states as claimed in claim 1 .

8 . The method as claimed in claim 1 , wherein the PDSCH and the PUSCH are represented by a same TCI state, and a transmission time of the PUSCH and a transmission time of the PDSCH meet a preset time relationship;
wherein the preset time relationship includes: a time interval of the transmission time of the PUSCH and the transmission time of the PDSCH is less than one or L time slots, and L is a positive integer greater than or equal to 2; or the transmission time of the PDSCH and the transmission time of the PUSCH are in a same time slot.

9 . A method for determining transmission configuration indication (TCI) states, performed by a user equipment (UE), comprising:
receiving a set of TCI state indication signalings; wherein the set of TCI state indication signalings comprises a radio resource control (RRC) signaling, a medium access control (MAC) signaling, and a first downlink control information (DCI) signaling; the RRC signaling indicates information of a set of TCI states, the information of the set of TCI states comprises M TCI states, and M is a positive integer; the MAC signaling activates N TCI states in the set of TCI states in the RRC signaling, N is a positive integer, and N is less than M; the first DCI signaling indicates one first TCI state in the N TCI states activated by the MAC signaling, the first TCI state indicates a reception beam of a physical downlink shared channel (PDSCH) and a transmission beam of a physical uplink shared channel (PUSCH); and determining TCI states of a plurality of channels based on the set of TCI state indication signalings; wherein, a third TCI state in the N TCI states activated by the MAC signaling indicates a beam of a control channel, and the third TCI state comprises one TCI state with a smallest TCI state number or a largest TCI state number in the N TCI states; wherein, the plurality of channels comprises physical downlink control channels (PDCCHs) and physical uplink control channels (PUCCHs), and the PUCCHs are PUCCHs having a preset time relationship with the PDCCHs.

10 . The method as claimed in claim 9 , further comprising:
based on target beams corresponding to the TCI states, performing data transmission with a network device on the corresponding channels.

11 . A user equipment, comprising:
a processor; and a memory for storing executable instructions; wherein the processor is configured to perform the method for determining transmission configuration indication (TCI) states as claimed in claim 9 when executing the executable instructions.

12 . A non-transitory computer storage medium having stored therein executable instructions that, when executed by a processor, causes the processor to perform the method for determining transmission configuration indication (TCI) states as claimed in claim 9 .

13 . The method as claimed in claim 9 , wherein the PDSCH and the PUSCH are represented by a same TCI state, and a transmission time of the PUSCH and a transmission time of the PDSCH meet a preset time relationship;
wherein the preset time relationship includes: a time interval of the transmission time of the PUSCH and the transmission time of the PDSCH is less than one or L time slots, and L is a positive integer greater than or equal to 2; or the transmission time of the PDSCH and the transmission time of the PUSCH are in a same time slot.

14 . A network device, comprising:
a processor; and a memory for storing executable instructions; wherein the processor is configured to when executing the executable instructions: indicate transmission configuration indication (TCI) states of a plurality of channels to a user equipment (UE) using a set of TCI state indication signalings; wherein the set of TCI state indication signalings comprises a radio resource control (RRC) signaling, a medium access control (MAC) signaling, and a first downlink control information (DCI) signaling; the RRC signaling indicates information of a set of TCI states, the information of the set of TCI states comprises M TCI states, and M is a positive integer; the MAC signaling activates N TCI states in the set of TCI states in the RRC signaling, N is a positive integer, and N is less than M; and the first DCI signaling indicates one first TCI state in the N TCI states activated by the MAC signaling, the first TCI state indicates a reception beam of a physical downlink shared channel (PDSCH) and a transmission beam of a physical uplink shared channel (PUSCH); wherein, a third TCI state in the N TCI states activated by the MAC signaling indicates a beam of a control channel, and the third TCI state comprises one TCI state with a smallest TCI state number or a largest

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Li Mingju

Classifications

• H04B7/088

  using beam selection · CPC title

• H04W80/02

  Data link layer protocols · CPC title

• H04W72/12

  Wireless traffic scheduling · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0092

  Indication of how the channel is divided · CPC title