Communication method and communication apparatus

1 . A method, comprising:

receiving, by a second base station, from a first base station, information about one or more candidate band combinations, wherein the information about the candidate band combinations comprises at least two bands and signal quality of cells corresponding to the at least two bands;

determining, by the second base station, a band combination from the one or more candidate band combinations, wherein the one or more candidate band combinations comprise the band combination;

sending, by the second base station, indication information of the band combination to the first base station;

receiving, by the second base station, a first message from the first base station in a process in which a terminal is handed over from the first base station to the second base station, wherein the first message indicates the band combination, and the band combination comprises a band of the second base station and a band of a third base station; and

adding, by the second base station, the third base station as a secondary base station, wherein the second base station is a master base station.

2 . The method according to claim 1 , wherein the at least two bands comprise the band of the second base station.

3 . The method according to claim 1 , wherein adding, by the second base station, the third base station as a secondary base station comprises:

adding, by the second base station, the third base station as the secondary base station in the handover process.

4 . The method according to claim 1 , wherein adding, by the second base station, the third base station as a secondary base station comprises:

adding, by the second base station, the third base station as the secondary base station after the handover is completed.

5 . The method according to claim 1 , wherein standards of the first base station and the second base station are different.

6 . The method according to claim 1 , wherein standards of the first base station and the second base station are the same.

7 . An apparatus, comprising:

a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory, and the computer program instructs the processor to:

receive, from a first base station, information about one or more candidate band combinations, wherein the information about the candidate band combinations comprises at least two bands and signal quality of cells corresponding to the at least two bands;

determine, by the apparatus, a band combination from the one or more candidate band combinations, wherein the one or more candidate band combinations comprise the band combination;

send, by the apparatus, indication information of the band combination to the first base station;

receive a first message from the first base station in a process in which a terminal is handed over from the first base station to the apparatus, wherein the first message indicates the band combination, and the band combination comprises a band of the apparatus and a band of a third base station; and

add the third base station as a secondary base station, wherein the apparatus is a master base station.

8 . The apparatus according to claim 7 , wherein the at least two bands comprise the band of the apparatus.

9 . The apparatus according to claim 7 , wherein the addition of the third base station as a secondary base station by the computer program instructions to the processor comprises instructions from the computer program to the processor to:

add the third base station as the secondary base station in the handover process.

10 . The apparatus according to claim 7 , wherein the addition of the third base station as a secondary base station by the computer program instructions to the processor comprises instructions from the computer program to the processor to:

add the third base station as the secondary base station after the handover is completed.