Network selection method and apparatus applied to mobile terminal

1. A network selection method, comprising:

executing a first communication service using a first identification card inserted in a first card slot of mobile terminal;

determining that the first communication service interferes with a second identification card inserted in a second card slot of the mobile terminal by:

determining that a first difference between a first product of a transmit frequency of the first identification card and a first positive integer (M) and a receive frequency of the second identification card is within a first preset range; or

determining that a second difference between a second product of the receive frequency and a second positive integer (N) and the transmit frequency is within a second preset range;

adjusting cell reselection information of the second identification card to generate adjusted cell reselection information; and

reselecting, using the second identification card, to a non-interfered-with cell based on the adjusted cell reselection information.

2. The network selection method of claim 1 , further comprising determining that a first cell identifier of a first serving cell of the first identification card is different than a second cell identifier of a second serving cell of the second identification card.

3. The network selection method of claim 1 , further comprising:

decreasing a first cell priority of a serving cell of the second identification card or increasing a second cell priority of the non-interfered-with cell, wherein the second cell priority is higher than the first cell priority;

decreasing a first cell measurement value of the serving cell or increasing a second cell measurement value of the non-interfered-with cell, wherein the second cell measurement value is greater than the first cell measurement value; and

increasing a reselection threshold of the serving cell to make the second identification card unable to access the serving cell.

4. The network selection method of claim 1 , wherein after executing the first communication service, the network selection method further comprises:

determining that the first communication service does not interfere with the second identification card; and

adjusting the cell reselection information to prevent the second identification card from reselecting an interfered-with cell.

5. The network selection method of claim 4 , further comprising:

increasing a first cell priority of a serving cell of the second identification card or decreasing a second cell priority of the interfered-with cell;

increasing a first cell measurement value of the serving cell or decreasing a second cell measurement value of the interfered-with cell; or

decreasing a reselection threshold of the serving cell.

6. The network selection method of claim 4 , wherein after determining that the first communication service does not interfere with the second identification card or after adjusting the cell reselection information, the network selection method further comprises:

executing a second communication service using the second identification card;

comparing a first priority of the first identification card with a second priority of the second identification card based on the first communication service and the second communication service; and

either: stopping reporting a cell measurement value of a low-priority identification card for the interfered-with cell or decreasing the cell measurement value for the interfered-with cell, and reporting a decreased cell measurement value.

7. The network selection method of claim 1 , further comprising decreasing a first cell priority of a serving cell of the second identification card or increasing a second cell priority of the non-interfered-with cell, wherein the second cell priority is higher than the first cell priority.

8. The network selection method of claim 1 , further comprising decreasing a first cell measurement value of a serving cell of the second identification card or increasing a second cell measurement value of the non-interfered-with cell, wherein the second cell measurement value is greater than the first cell measurement value.

9. The network selection method of claim 1 , further comprising increasing a reselection threshold of a serving cell of the second identification card to make the second identification card unable to access the serving cell.

10. A mobile terminal, comprising:

a first card slot;

a second card slot;

a first identification card inserted in the first card slot;

a second identification card inserted in the second card slot;

a memory configured to store instructions; and

a processor coupled to the memory, the first card slot, and the second card slot, wherein the instructions cause the processor to be configured to:

execute a communication service using the first identification card;

determine that the communication service interferes with the second identification card by:

determining that a first difference between a first product of a transmit frequency of the first identification card and a first positive integer (M) and a receive frequency of the second identification card is within a first preset range; or

determining that a second difference between a second product of the receive frequency and a second positive integer (N) and the transmit frequency is within a second preset range;

adjust cell reselection information of the second identification card to generate adjusted cell reselection information; and

reselect, using the second identification card, to a non-interfered-with cell based on the adjusted cell reselection information.

11. The mobile terminal of claim 10 , wherein the instructions further cause the processor to be configured to:

decrease a first cell priority of a serving cell of the second identification card or increase a second cell priority of the non-interfered-with cell of the second identification card, wherein the second cell priority is higher than the first cell priority;

decrease a first cell measurement value of the serving cell or increase a second cell measurement value of the non-interfered-with cell, wherein the second cell measurement value is greater than the first cell measurement value; or

increase a reselection threshold of the serving cell to make the second identification card unable to access the serving cell.

12. The mobile terminal of claim 10 , wherein the instructions further cause the processor to be configured to:

determine that the communication service does not interfere with the second identification card after executing the communication service; and

adjust the cell reselection information to prevent the second identification card from reselecting an interfered-with cell.

13. The mobile terminal claim 12 , wherein the instructions further cause the processor to be configured to:

increase a first cell priority of a serving cell of the second identification card or decrease a second cell priority of the interfered-with cell;

increase a first cell measurement value of the serving cell or decrease a second cell measurement value of the interfered-with cell; or

decrease a reselection threshold of the serving cell.

14. A network selection method implemented by a mobile terminal, wherein the network selection method comprises:

executing a first communication service using a first identification card inserted in a first card slot of the mobile terminal;

determining that the first communication service interferes with a second identification card inserted in a second card slot of the mobile terminal by:

determining that a first cell identifier of a first serving cell of the first identification card is different than a second cell identifier of a second serving cell of the second identification card; and

determining that a first difference between a first product of a transmit frequency of the first identification card and a first positive integer (M) and a receive frequency of the second identification card is within a first preset range;

adjusting cell reselection information of the second identification card to generate adjusted cell reselection information; and

reselecting, using the second identification card, to a non-interfered-with cell based on the adjusted cell reselection information.

15. The network selection method of claim 14 , wherein after executing the first communication service, the network selection method further comprises:

determining that the first communication service does not interfere with the second identification card; and

adjusting the cell reselection information to prevent the second identification card from reselecting an interfered-with cell.

16. The network selection method of claim 15 , further comprising:

increasing a first cell priority of a serving cell of the second identification card or decreasing a second cell priority of the interfered-with cell;

increasing a first cell measurement value of the serving cell or decreasing a second cell measurement value of the interfered-with cell; or

decreasing a reselection threshold of the serving cell.

17. The network selection method of claim 15 , wherein after determining that the first communication service does not interfere with the second identification card or after adjusting the cell reselection information, the network selection method further comprises:

executing a second communication service using the second identification card;

comparing a first priority of the first identification card with a second priority of the second identification card based on the first communication service and the second communication service; and

either: stopping reporting a cell measurement value of a low-priority identification card for the interfered-with cell or decreasing the cell measurement value for the interfered-with cell, and reporting a decreased cell measurement value.

18. The network selection method of claim 14 , further comprising decreasing a first cell priority of a serving cell of the second identification card or increasing a second cell priority of the non-interfered-with cell, wherein the second cell priority is higher than the first cell priority.

19. The network selection method of claim 14 , further comprising decreasing a first cell measurement value of a serving cell of the second identification card or increasing a second cell measurement value of the non-interfered-with cell, wherein the second cell measurement value is greater than the first cell measurement value.

20. The network selection method of claim 14 , further comprising increasing a reselection threshold of a serving cell of the second identification card to make the second identification card unable to access the serving cell.