Mode switching method for broadcast service and related device

1. A mode switching method for a broadcast service, comprising:

determining, by a terminal, a trigger instruction when switching of a broadcast mode is to be performed, the trigger instruction being configured to instruct switching of the broadcast mode of the terminal;

transmitting, by the terminal, the trigger instruction configured to instruct the switching of the broadcast mode to an access network device to enable the access network device to transmit a switching request to a functional network element, the switching request being configured to instruct the functional network element to configure a corresponding mode parameter, the mode parameter being configured to instruct the access network device to obtain a configuration parameter corresponding to the switched broadcast mode and the access network device to transmit the configuration parameter to the terminal;

receiving, by the terminal, the configuration parameter transmitted by the network access device; and

switching, by the terminal, to a corresponding broadcast mode according to the configuration parameter to establish a wireless connection with the access network device.

2. The method according to claim 1 , wherein the determining the trigger instruction comprises:

establishing trigger coordination with an application server to determine the trigger instruction.

3. The method according to claim 1 , further comprising:

monitoring application layer information in real time to obtain switching information, the switching information being determined based on a change of a geographic location or of a service policy,

wherein the determining the trigger instruction includes determining the trigger instruction according to the switching information.

4. The method according to claim 1 , further comprising:

receiving switching information from an application server,

wherein the determining the trigger instruction includes determining the trigger instruction according to the switching information.

5. The method according to claim 1 , further comprising:

obtaining a measurement report of a neighboring cell, the measurement report indicating a broadcast mode supported by the neighboring cell,

wherein the determining the trigger instruction includes determining the corresponding broadcast mode according to the measurement report to determine the trigger instruction.

6. The method according to claim 1 , further comprising:

determining a corresponding parameter change value according to the switching of the broadcast mode to generate resource control information, wherein

the resource control information is included in the trigger instruction to enable the access network device to negotiate among a plurality of neighboring access network devices according to the resource control information, to match the switched broadcast mode and to transmit the switching request to the functional network element.

7. The method according to claim 1 , wherein the trigger instruction is configured to instruct switching from one of a broadcast mode and a multicast mode to the other of the broadcast mode and the multicast mode.

8. A terminal for a broadcast service, comprising:

a memory; and

a processor configured to execute instructions stored in the memory, the instructions when executed by the processor cause the processor to:

determine a trigger instruction when switching of a broadcast mode is to be performed, the trigger instruction being configured to instruct switching of the broadcast mode of the terminal;

transmit the trigger instruction configured to instruct the switching of the broadcast mode to an access network device to enable the access network device to transmit a switching request to a functional network element, the switching request being configured to instruct the functional network element to configure a corresponding mode parameter, the mode parameter being configured to instruct the access network device to obtain a configuration parameter corresponding to the switched broadcast mode and the access network device to transmit the configuration parameter to the terminal;

receive the configuration parameter transmitted by the access network device; and

switch to a corresponding broadcast mode according to the configuration parameter to establish a wireless connection with the access network device.

9. The terminal according to claim 8 , wherein the instructions further cause the processor to:

establish trigger coordination with an application server to determine the trigger instruction.

10. The terminal according to claim 8 , wherein the instructions further cause the processor to:

monitor application layer information in real time to obtain switching information, the switching information being determined based on a change of a geographic location or of a service policy, and

determine the trigger instruction according to the switching information.

11. The terminal according to claim 8 , wherein the instructions further cause the processor to:

receive switching information from an application server, and

determine the trigger instruction according to the switching information.

12. The terminal according to claim 8 , wherein the instructions further cause the processor to:

obtain a measurement report of a neighboring cell, the measurement report indicating a broadcast mode supported by the neighboring cell, and

determine the corresponding broadcast mode according to the measurement report to determine the trigger instruction.

13. The terminal according to claim 8 , wherein

the instructions further cause the processor to determine a corresponding parameter change value according to the switching of the broadcast mode to generate resource control information; and

the resource control information is included in the trigger instruction to enable the access network device to negotiate among a plurality of neighboring access network devices according to the resource control information, to match the switched broadcast mode and to transmit the switching request to the functional network element.

14. The terminal according to claim 8 , wherein the trigger instruction is configured to instruct switching from one of a broadcast mode and a multicast mode to the other of the broadcast mode and the multicast mode.

15. A non-transitory computer-readable storage medium storing instructions which when executed by at least one processor cause the at least one processor to perform the method according to claim 1 .

16. A non-transitory computer-readable storage medium storing instructions which when executed by at least one processor cause the at least one processor to perform the method according to claim 6 .