Granted Patent B2

US 12,652,681 · App. 18/040,140 · Granted Jun 9, 2026

Inventors: Xiaoman Liu (Beijing, CN); Fang Xie (Beijing, CN)

Assignees: CHINA MOBILE COMMUNICATION CO., LTD RESEARCH INSTITUTE; CHINA MOBILE COMMUNICATIONS GROUP CO., LTD.

H04W72/30H04W4/06H04W24/08

Abstract

Claims (48)

1 . A multicast or broadcast resource configuration method, applied to a Distributed Unit (DU), comprising:

receiving relevant information, that is reported by at least one terminal, of a first multicast or broadcast service that is expected to be received;

sending the received relevant information to a Centralized Unit (CU), wherein the sent relevant information is used to configure resources of the first multicast or broadcast service for the DU; and

receiving resource configuration information, that is sent by the CU, of the first multicast or broadcast service,

wherein the method further comprises:

broadcasting a system information, the system information carrying at least one piece of multicast or broadcast service information; and

receiving the relevant information of the first multicast or broadcast service that is reported by the at least one terminal based on the at least one piece of multicast or broadcast service information, and

wherein the relevant information comprises:

an identification of the first multicast or broadcast service;

a location of the terminal; and

a receiving mode preference,

wherein sending the relevant information to the CU comprises:

directly delivering the relevant information reported by the terminal to the CU without interpretation for performing statistics on the relevant information to obtain a statistical result,

wherein when sending the received relevant information to the CU, the method further comprises:

sending first information to the CU, the first information representing a transmission mode suggested for the first multicast or broadcast service,

wherein in a case where the transmission mode suggested for the first multicast or broadcast service is a multicast mode, when sending the first information to the CU, the method further comprises:

sending second information to the CU, the second information representing a multicast area or broadcast area suggested for the first multicast or broadcast service,

wherein the statistical result, a number of terminals under a Synchronization Signal Block (SSB), channel conditions, the first information and the second information are together used for determining that the first multicast or broadcast service adopts the multicast mode.

2 . The method of claim 1 , wherein the relevant information, that is reported by the terminal, of the first multicast or broadcast service that is expected to be received is received in one of following manners:

a Media Access Control Control Element (MAC CE);

physical layer signaling; or

Radio Resource Control (RRC) signaling.

3 . The method of claim 1 , further comprising:

sending resource configuration information, that is configured by a network element other than the CU, of a second multicast or broadcast service to the CU, wherein the sent resource configuration information is used by the CU to configure the resources of the first multicast or broadcast service for the DU.

4 . A Distributed Unit (DU), comprising: a first processor and a first memory configured to store a computer program executable on the processor,

wherein the first processor is configured to execute the steps of the method of claim 1 .

5 . A multicast or broadcast resource configuration method, applied to a Centralized Unit (CU), comprising:

receiving relevant information, that is reported by at least one Distributed Unit (DU), of a first multicast or broadcast service that is expected to be received by at least one terminal;

configuring resources of the first multicast or broadcast service for each of the at least one DU using the received relevant information; and

sending resource configuration information of the first multicast or broadcast service to each DU,

wherein the relevant information of the first multicast or broadcast service is reported by the at least one terminal based on at least one piece of multicast or broadcast service information, and the at least one piece of multicast or broadcast service information is carried in a system information broadcast by the at least one DU, and

wherein the relevant information comprises at least one of:

an identification of the first multicast or broadcast service;

a location of the terminal; and

a receiving mode preference,

wherein when the relevant information, that is reported by the at least one DU, of the first multicast or broadcast service that is expected to be received by the at least one terminal is received, the method comprises:

receiving the relevant information of the first multicast or broadcast service that is reported by the terminal and that is delivered by the DU without interpretation,

wherein when receiving the relevant information, that is reported by the at least one DU, of the first multicast or broadcast service that is expected to be received by the at least one terminal, the method further comprises:

receiving first information sent by the DU, the first information representing a transmission mode suggested for the first multicast or broadcast service,

wherein in a case where the transmission mode suggested for the first multicast or broadcast service is a multicast mode, when receiving the first information sent by the CU, the method further comprises:

receiving second information sent by the DU, the second information representing a multicast area or broadcast area suggested for the first multicast or broadcast service,

wherein statistics is performed on the relevant information reported by the at least one DU to obtain a statistical result,

wherein the statistical result, a number of terminals under a Synchronization Signal Block (SSB), channel conditions, the first information and the second information are together used for determining that the first multicast or broadcast service adopts the multicast mode.

6 . The method of claim 5 , wherein

for each of the at least one DU, the relevant information of the first multicast or broadcast service of at least one terminal that is reported by a corresponding DU is used to configure the resources of the first multicast or broadcast service for the corresponding DU; wherein

the resources of the first multicast or broadcast service configured for each of the at least one DU are different.

7 . A Centralized Unit (CU), comprising: a second processor and a second memory configured to store a computer program executable on the processor,

wherein the second processor is configured to execute the steps of the method of claim 5 .

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (31)