Granted Patent B2

US 12,640,888 · App. 18/269,732 · Granted May 26, 2026

Inventor: Mingju Li (Beijing, CN)

Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

H04L5/0053H04W72/232

Abstract

Claims (40)

1 . A method for beam indication, performed by a terminal, the method comprising:

receiving first indication information, wherein the first indication information is configured to indicate one or more common transmission configuration indication (TCI) states, the common TCI state comprises an uplink and downlink (UL & DL) common TCI state applicable to UL and DL, or at least one of a UL common TCI state applicable to UL or a DL common TCI state applicable to DL;

wherein the first indication information comprises at least one of a first indication field or a second indication field, the first indication field is configured to indicate the UL common TCI state or the UL & DL common TCI state, and the second indication field is configured to indicate the DL common TCI state or the UL & DL common TCI state;

wherein the first indication field and the second indication field are in a same downlink control information (DCI) format, and the first indication field is the same as the second indication field;

wherein when the first indication field is the same as the second indication field, the first indication field and the second indication field are represented by different bit values of a same bit; and a code point corresponding to a first bit value has a first mapping relationship with the UL common TCI state, and/or a code point corresponding to a second bit value has a second mapping relationship with the DL common TCI state.

2 . The method of claim 1 , wherein the first indication field and the second indication field are in different downlink control information (DCI) formats;

wherein at least one of the first indication field or the second indication field is at least one of: an indication field of TCI for physical downlink shared channel (PDSCH) dedicated beam indication in a DCI signaling; an indication field for sounding reference signal (SRS) resource indication in the DCI signaling; or a new indication field in the DCI signaling.

3 . The method of claim 1 , wherein a DCI signaling sent for one time is configured to indicate the UL & DL common TCI state, or the UL common TCI state, or the DL common TCI state.

4 . The method of claim 1 , further comprising:

receiving second indication information, wherein the second indication information is configured to indicate at least one of a channel or a reference signal to which the common TCI state is applicable.

5 . The method of claim 1 , wherein the one or more common TCI states comprise TCI states of a same transmission and reception point (TRP) or TCI states of multiple TRPs.

6 . The method of claim 5 , further comprising:

receiving third indication information, wherein the third indication information is configured to indicate that the first indication information indicates common TCI states of one or more TRPs; and

receiving fourth indication information, wherein the fourth indication information is configured to indicate that the first indication information indicates at least one of: the UL & DL common TCI state, the UL common TCI state or the DL common TCI state.

7 . A method for beam indication, performed by a network device, the method comprising:

sending first indication information, wherein the first indication information is configured to indicate one or more common transmission configuration indication (TCI) states, the common TCI state comprises an uplink and downlink (UL & DL) common TCI state applicable to UL and DL, or at least one of a UL common TCI state applicable to UL or a DL common TCI state applicable to DL;

wherein the first indication information comprises at least one of a first indication field or a second indication field, the first indication field is configured to indicate the UL common TCI state or the UL & DL common TCI state, and the second indication field is configured to indicate the DL common TCI state or the UL & DL common TCI state;

wherein the first indication field and the second indication field are in a same downlink control information (DCI) format, and the first indication field is the same as the second indication field;

wherein when the first indication field is the same as the second indication field, the first indication field and the second indication field are represented by different bit values of a same bit; and a code point corresponding to a first bit value has a first mapping relationship with the UL common TCI state, and/or a code point corresponding to a second bit value has a second mapping relationship with the DL common TCI state.

8 . The method of claim 7 , wherein the first indication field and the second indication field are in different downlink control information (DCI) formats;

wherein at least one of the first indication field or the second indication field is at least one of: an indication field of TCI for physical downlink shared channel (PDSCH) dedicated beam indication in a DCI signaling; an indication field for sounding reference signal (SRS) resource indication in the DCI signaling; or a new indication field in the DCI signaling.

9 . The method of 7 , wherein a DCI signaling sent for one time is configured to indicate the UL & DL common TCI state, or the UL common TCI state, or the DL common TCI state.

10 . The method of claim 7 , further comprising:

sending second indication information, wherein the second indication information is configured to indicate at least one of a channel or a reference signal to which the common TCI state is applicable.

11 . The method of claim 7 , wherein the one or more common TCI states comprise TCI states of a same transmission and reception point (TRP) or TCI states of multiple TRPs.

12 . The method of claim 11 , further comprising:

sending third indication information, wherein the third indication information is configured to indicate that the first indication information indicates common TCI states of one or more TRPs; and

sending fourth indication information, wherein the fourth indication information is configured to indicate that the first indication information indicates at least one of: the UL & DL common TCI state, the UL common TCI state or the DL common TCI state.

13 . A terminal, comprising:

a processor; and

a memory storing instructions executable by the processor;

wherein the processor is configured to:

receive first indication information, wherein the first indication information is configured to indicate one or more common transmission configuration indication (TCI) states, the common TCI state comprises an uplink and downlink (UL & DL) common TCI state applicable to UL and DL, or at least one of a UL common TCI state applicable to UL or a DL common TCI state applicable to DL;

wherein the first indication information comprises at least one of a first indication field or a second indication field, the first indication field is configured to indicate the UL common TCI state or the UL & DL common TCI state, and the second indication field is configured to indicate the DL common TCI state or the UL & DL common TCI state;

wherein the first indication field and the second indication field are in a same downlink control information (DCI) format, and the first indication field is the same as the second indication field;

wherein when the first indication field is the same as the second indication field, the first indication field and the second indication field are represented by different bit values of a same bit; and a code point corresponding to a first bit value has a first mapping relationship with the UL common TCI state, and/or a code point corresponding to a second bit value has a second mapping relationship with the DL common TCI state.

14 . A network device, comprising:

a processor; and

a memory storing instructions executable by the processor;

wherein the processor is configured to execute the method for beam indication according to claim 7 .

Assignments (1)

Continuity (1)

References Cited (16)