Method and apparatus for selecting network

Patent metadata

Field	Value
Publication number	US-10045286-B2
Application number	US-201615355687-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	Nov 20, 2015
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A method for a mobile terminal to select a network includes: when the mobile terminal is unable to reside on a top-priority network, recording information of a first cell of the top-priority network that the mobile terminal is unable to reside on, wherein the top-priority network is determined based on a rule preset in the mobile terminal; monitoring an environment for detecting the top-priority network when the mobile terminal is residing on a non-top-priority network; and if a second cell of the top-priority network is detected and a relationship between the detected second cell and the first cell satisfies a preset condition, handing over the mobile terminal to the detected second cell, no matter whether a current network connection state of the mobile terminal is an idle state.

First claim

What is claimed is:

1. A method for a mobile terminal to select a network, comprising:
when the mobile terminal is unable to reside on a top-priority network, recording information of a first cell of the top-priority network that the mobile terminal is unable to reside on, wherein the top-priority network is determined based a rule preset in the mobile terminal;
monitoring an environment for detecting the top-priority network when the mobile terminal is residing on a non-top-priority network; and
if a second cell of the top-priority network is detected and a relationship between the detected second cell and the first cell satisfies a preset condition, handing over the mobile terminal to the detected second cell, no matter whether a current network connection state of the mobile terminal is an idle state,
wherein the handing over the mobile terminal to the detected second cell comprises:
if the current network connection state of the mobile terminal is the idle state, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network; and
if the current network connection state of the mobile terminal is a connected state, initiating a Public Land Mobile Network (PLMN) selection, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network.

2. The method of claim 1 , wherein the preset condition comprises:
the detected second cell not being the first cell of which the information is recorded.

3. The method of claim 1 , wherein the present condition comprises:
the detected second cell being the first cell of which the information is recorded, and an interval between a current time and a time when the mobile terminal left the first cell exceeds a preset time period.

4. The method of claim 1 , wherein the preset rule comprises:
defining a Long Term Evolution (LTE) network on which the mobile terminal resides as the top-priority network.

5. A mobile terminal for selecting a network, comprising:
a processor; and
a memory for storing instructions executable by the processor,
wherein the processor is configured to perform:
when the mobile terminal is unable to reside on a top-priority network, recording information of a first cell of the top-priority network, wherein the top-priority network is determined based on a rule preset in the mobile terminal;
monitoring an environment for detecting the top-priority network when the mobile terminal is residing on a non-top-priority network; and
if a second cell of the top-priority network is detected and a relationship between the detected second cell and the first cell satisfies a preset condition, handing over the mobile terminal to the detected second cell, no matter whether a network connection state of the mobile terminal is an idle state,
wherein the handing over the mobile terminal to the detected second cell comprises:
if the current network connection state of the mobile terminal is the idle state, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network; and
if the current network connection state of the mobile terminal is a connected state, initiating a Public Land Mobile Network (PLMN) selection, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network.

6. The mobile terminal of claim 5 , wherein the preset condition comprises:
the detected second cell not being the first cell of which the information is recorded.

7. The mobile terminal of claim 5 , wherein the preset condition comprises:
the detected second cell being the first cell of which the information is recorded, and an interval between a current time and a time when the mobile terminal left the first cell exceeds a preset time period.

8. The mobile terminal of claim 5 , wherein the preset rule comprises:
defining a Long Term Evolution (LTE) network on which the mobile terminal resides as the top-priority network.

9. A non-transitory computer readable storage medium storing instructions that, when executed by a processor in a mobile terminal, cause the mobile terminal to perform a method for selecting a network, the method comprising:
when the mobile terminal is unable to reside on a top-priority network, recording information of a first cell of the top-priority network, wherein the top-priority network is determined based on a rule preset in the mobile terminal;
monitoring an environment for detecting the top-priority network when the mobile terminal is residing on a non-top-priority network; and
if a second cell of the top-priority network is detected and a relationship between the detected second cell and the first cell satisfies a preset condition, handing over the mobile terminal to the detected second cell, no matter whether a network connection state of the mobile terminal is an idle state,
wherein the handing over the mobile terminal to the detected second cell comprises:
if the current network connection state of the mobile terminal is the idle state, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network; and
if the current network connection state of the mobile terminal is a connected state, initiating a Public Land Mobile Network (PLMN) selection, switching a network mode of the mobile terminal to the top-priority network, and initiating a login request to the detected second cell to reside on the top-priority network.

Assignees

• Xiaomi Inc

Inventors

• Huang Jiangtao
• Wang Qiang
• Sun Long

Classifications

• H04W36/0088 Primary

  Scheduling hand-off measurements · CPC title

• H04W48/18 Primary

  Selecting a network or a communication service · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04W48/08 Primary

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title

• H04W36/00837

  Determination of triggering parameters for hand-off · CPC title