Network Selection Method and Apparatus Applied to Mobile Terminal

Patent metadata

Field	Value
Publication number	US-2021289412-A1
Application number	US-201817275279-A
Country	US
Kind code	A1
Filing date	Sep 17, 2018
Priority date	Sep 17, 2018
Publication date	Sep 16, 2021
Grant date	—

Abstract

A network selection method includes executing, by a mobile terminal, a communication service using a first identification card, determining, by the mobile terminal, that the communication service interferes with a second identification card in the mobile terminal, and adjusting, by the mobile terminal, cell reselection information of the second identification card to reselect to a non-interfered-with cell.

First claim

1 . 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; 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 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; and 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.

3 . 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; 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; and 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.

4 . 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.

5 . 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.

6 . The network selection method of claim 5 , 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.

7 . The network selection method of claim 5 , 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.

8 . 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 located in a first card slot of the mobile terminal; executing a second communication service using a second identification card located in a second card slot of the mobile terminal; determining that the first communication service interferes with the second identification card and the second communication service interferes with the first identification card; determining a first priority of the first identification card and a second priority of the second identification card based on the first communication service and the second communication service; terminating a third communication service of a low-priority identification card, wherein the third communication service is one of the first communication service or the second communication service; adjusting cell reselection information of the low-priority identification card to generate adjusted cell reselection information; reselecting, using the low-priority identification card, to a non-interfered-with cell based on the adjusted cell reselection information; and subsequent to reselecting to the non-interfered-with cell, controlling the low-priority identification card to execute the third communication service.

9 . The network selection method of claim 8 , wherein after terminating the third communication service and adjusting the cell reselection information, the network selection method further comprises:
stopping reporting a cell measurement value of the low-priority identification card for an interfered-with cell; or decreasing the cell measurement value, and reporting a decreased cell measurement value.

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;
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 network selection apparatus 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 network selection apparatus 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 commu

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhang Bao
• Gong Weilin

Classifications

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W36/20 Primary

  for optimising the interference level · CPC title

• H04W8/18

  Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data · CPC title

• H04W8/183 Primary

  Processing at user equipment or user record carrier · CPC title

• H04W48/20

  Selecting an access point · CPC title