Cell reselection method and apparatus, and frequency information management method and apparatus

1. A cell reselection method, wherein the method comprises:

sending, by a terminal, a frequency information obtaining request to a server, wherein the frequency information obtaining request comprises current location information of the terminal;

receiving, by the terminal and in response to the frequency information obtaining request, first correspondence information that is sent by the server and that is corresponding to the current location information, wherein the first correspondence information comprises a correspondence between search frequency information and camp-on frequency information, and the first correspondence information is obtained by the server based on frequency information sent by a different terminal;

when the terminal starts cell reselection, querying the first correspondence information according to current frequency information of the terminal, wherein the first correspondence information is corresponding to current location information of the terminal; and

determining, by the terminal according to the first correspondence information, to reselect a second cell for the terminal.

2. The method according to claim 1 , wherein the determining, according to the first correspondence information, to reselect a second cell for the terminal comprises:

determining, by the terminal, whether first camp-on frequency information meets a reselection condition if the first camp-on frequency information corresponding to the current frequency information exists in the first correspondence information, wherein the search frequency information comprises the current frequency information; and

reselecting, by the terminal, a second cell corresponding to the first camp-on frequency information for the terminal if the first camp-on frequency information meets the reselection condition.

3. The method according to claim 1 , wherein the determining, according to the first correspondence information, to reselect a second cell for the terminal comprises:

performing, by the terminal, a network search to obtain second frequency information if no first camp-on frequency information corresponding to the current frequency information exists in the first correspondence information; and

reselecting a second cell corresponding to the second frequency information for the terminal if the second frequency information meets a reselection condition.

4. The method according to claim 3 , wherein after the reselecting a second cell corresponding to the second frequency information for the terminal, the method further comprises:

sending, to a server, a correspondence between the current frequency information of the terminal and the second frequency information, and the current location information of the terminal.

5. The method according to claim 1 , wherein the method further comprises:

receiving, by the terminal, configuration information sent by a base station;

deleting, by the terminal, the first correspondence information if the configuration information comprises the camp-on frequency information in the first correspondence information; and selecting, by the terminal, a piece of frequency information in the configuration information, and reselecting a third cell corresponding to the frequency information for the terminal when the terminal starts cell reselection.

6. A frequency information management method, wherein the method comprises:

receiving, by a server, a frequency information obtaining request sent by a terminal, wherein the frequency information obtaining request comprises current location information of the terminal; and

sending, by the server and in response to the frequency information obtaining request, first correspondence information corresponding to the current location information of the terminal, wherein the first correspondence information is stored in the server, the first correspondence information comprises a correspondence between search frequency information and camp-on frequency information, and the first correspondence information is obtained by the server based on frequency information sent by a different terminal.

7. The method according to claim 6 , wherein the method further comprises:

receiving, by the server, a correspondence between current frequency information of the terminal and second frequency information; and

updating, by the server, second correspondence information according to the correspondence between the current frequency information of the terminal and the second frequency information, wherein the second correspondence information comprises the first correspondence information arranged according to different location information.

8. The method according to claim 6 , wherein the method further comprises:

sending, by the server, second correspondence information to a base station.

9. A terminal, wherein the terminal comprises a memory and a processor, the memory stores code and data, and the processor executes the code in the memory to cause the terminal to perform following operations:

sending, by the terminal, a frequency information obtaining request to a server, wherein the frequency information obtaining request comprises current location information of the terminal;

receiving, by the terminal and in response to the frequency information obtaining request, first correspondence information that is sent by the server and that is corresponding to the current location information, wherein the first correspondence information comprises a correspondence between search frequency information and camp-on frequency information, and the first correspondence information is obtained by the server based on frequency information sent by a different terminal;

when the terminal starts cell reselection, querying the first correspondence information according to current frequency information of the terminal, wherein the first correspondence information is corresponding to current location information of the terminal; and

determining, according to the first correspondence information, to reselect a second cell for the terminal.

10. The terminal according to claim 9 , wherein the determining, according to the first correspondence information, to reselect a second cell for the terminal comprises:

determining whether first camp-on frequency information meets a reselection condition if the first camp-on frequency information corresponding to the current frequency information exists in the first correspondence information, wherein the search frequency information comprises the current frequency information; and

reselecting a second cell corresponding to the first camp-on frequency information for the terminal if the first camp-on frequency information meets the reselection condition.

11. The terminal according to claim 9 , wherein the determining, according to the first correspondence information, to reselect a second cell for the terminal comprises:

performing a network search to obtain second frequency information if no first camp-on frequency information corresponding to the current frequency information exists in the first correspondence information; and

reselecting a second cell corresponding to the second frequency information for the terminal if the second frequency information meets a reselection condition.

12. The terminal according to claim 11 , wherein after the reselecting a second cell corresponding to the second frequency information for the terminal, the operations further comprise:

sending, to a server, a correspondence between the current frequency information of the terminal and the second frequency information, and the current location information of the terminal to the server.

13. The terminal according to claim 9 , wherein the operations further comprise:

sending the first correspondence information to a base station.

14. The terminal according to claim 9 , wherein the operations further comprise:

receiving configuration information sent by a base station;

deleting the first correspondence information if the configuration information comprises the camp-on frequency information in the first correspondence information; and

selecting a piece of frequency information in the configuration information, and reselecting a third cell corresponding to the frequency information for the terminal when the terminal starts cell reselection.