Method for performing communication service by using plurality of modems

1. A method for performing a communication service by using a plurality of modems, comprising:

receiving, by an arbitration apparatus from a first modem performing a first communication service in a first frequency band, an indication that the first modem is to be switched from the first frequency band to a third frequency band, wherein the first modem sends the indication to the arbitration apparatus after receiving a switching instruction from an access network device, the switching instruction instructing the first modem to switch from the first frequency band to the third frequency band;

determining, by the arbitration apparatus, whether the third frequency band conflicts with a second frequency band, to obtain a determining result, wherein the second frequency band is used by a second modem to perform a second communication service, wherein the first modem and the second modem are in a first operating mode; and

performing, by the arbitration apparatus, one of the following operations based on the determining result: maintaining the first operating mode, or switching the first operating mode to a second operating mode for the first modem and the second modem, wherein one of the first operating mode and the second operating mode is a concurrent operating mode, and the other mode is a non-concurrent operating mode.

2. The method according to claim 1 , wherein the first operating mode is the concurrent operating mode, the second operating mode is the non-concurrent operating mode, and the performing, by the arbitration apparatus, one of the following operations comprises: when the determining result is that the third frequency band does not conflict with the second frequency band, maintaining, by the arbitration apparatus, the first operating mode.

3. The method according to claim 2 , wherein the performing, by the arbitration apparatus, one of the following operations further comprises: when the determining result is that the third frequency band conflicts with the second frequency band, switching, by the arbitration apparatus, the first operating mode to the second operating mode for the first modem and the second modem.

4. The method according to claim 1 , wherein the first operating mode is the non-concurrent operating mode, the second operating mode is the concurrent operating mode, and the performing, by the arbitration apparatus, one of the following operations comprises: when the determining result is that the third frequency band does not conflict with the second frequency band, switching, by the arbitration apparatus, the first operating mode to the second operating mode for the first modem and the second modem.

5. The method according to claim 4 , wherein the performing, by the arbitration apparatus, one of the following operations further comprises: when the determining result is that the third frequency band conflicts with the second frequency band, maintaining, by the arbitration apparatus, the first operating mode.

6. The method according to claim 1 , wherein the determining whether the third frequency band conflicts with the second frequency band comprises: determining whether the third frequency band conflicts with the second frequency band according to a preset correspondence table, wherein the preset correspondence table is used to indicate a frequency band conflict status between the first modem and the second modem.

7. The method according to claim 6 , wherein the frequency band conflict status comprises: at least one of conflict frequency band information or non-conflict frequency band information of the first modem and the second modem.

8. The method according to claim 1 , wherein the first modem and the second modem in the concurrent operating mode use respective radio frequency devices.

9. The method according to claim 8 , wherein one of the first modem and the second modem uses a millimeter-wave radio frequency device, and the other modem uses a non-millimeter-wave radio frequency device.

10. The method according to claim 1 , wherein the first modem and the second modem in the non-concurrent operating mode use a same radio frequency device in a preemption manner.

11. An apparatus for performing a communication service by using a plurality of modems, comprising: a first modem, a second modem, and an arbitration apparatus, wherein

the first modem is to: perform a first communication service in a first frequency band; receive, from an access network device, a switching instruction for the first communication service, wherein the switching instruction is used to instruct the first modem to switch from the first frequency band to a third frequency band; and indicate to the arbitration apparatus that the first modem needs to be switched to the third frequency band;

the second modem is to perform a second communication service in a second frequency band, wherein the first modem and the second modem are in a first operating mode; and

the arbitration apparatus is to: determine whether the third frequency band conflicts with the second frequency band, to obtain a determining result; and perform one of following operations based on the determining result: maintaining the first operating mode, or switching the first operating mode to a second operating mode for the first modem and the second modem; wherein one of the first operating mode and the second operating mode is a concurrent operating mode, and the other mode is a non-concurrent operating mode.

12. The apparatus according to claim 11 , wherein the first operating mode is the concurrent operating mode, the second operating mode is the non-concurrent operating mode, and the arbitration apparatus is to: when the determining result is that the third frequency band does not conflict with the second frequency band, maintain the first operating mode.

13. The apparatus according to claim 12 , wherein the arbitration apparatus is further to: when the determining result is that the third frequency band conflicts with the second frequency band, switch the first operating mode to the second operating mode for the first modem and the second modem.

14. The apparatus according to claim 11 , wherein the first operating mode is the non-concurrent operating mode, the second operating mode is the concurrent operating mode, and the arbitration apparatus is to: when the determining result is that the third frequency band does not conflict with the second frequency band, switch the first operating mode to the second operating mode for the first modem and the second modem.

15. The apparatus according to claim 14 , wherein the arbitration apparatus is further to: when the determining result is that the third frequency band conflicts with the second frequency band, maintain the first operating mode.

16. The apparatus according to claim 11 , wherein the apparatus further comprises a memory, wherein

the memory is to store a correspondence table, wherein the correspondence table is used to indicate a frequency band conflict status between the first modem and the second modem; and

the arbitration apparatus is to determine whether the third frequency band conflicts with the second frequency band according to the correspondence table.

17. The apparatus according to claim 16 , wherein the frequency band conflict status comprises: at least one of conflict frequency band information or non-conflict frequency band information of the first modem and the second modem.

18. The apparatus according to claim 11 , wherein the first modem and the second modem in the concurrent operating mode use respective radio frequency devices.

19. The apparatus according to claim 18 , wherein one of the first modem and the second modem uses a millimeter-wave radio frequency device, and the other modem uses a non-millimeter-wave radio frequency device.

20. The apparatus according to claim 11 , wherein the first modem and the second modem in the concurrent operating mode use a same radio frequency device in a preemption manner.