Method and apparatus for accessing base station

Patent metadata

Field	Value
Publication number	US-10313936-B2
Application number	US-201615372969-A
Country	US
Kind code	B2
Filing date	Dec 8, 2016
Priority date	May 20, 2016
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A method for accessing a base station is provided. The method includes: identifying, by a terminal device, a target base station providing a maximum received signal strength from at least one base station; receiving a system message sent by the target base station, the system message including an access parameter associated with the target base station; if a value of the access parameter satisfies a preset condition, accessing the target base station; and if the value of the access parameter does not satisfy the preset condition, maintaining access to a base station currently accessed by the terminal device.

First claim

What is claimed is:

1. A method for accessing a base station, comprising:
identifying, by a terminal device, a target base station providing a maximum received signal strength from at least one base station;
receiving a system message sent by the target base station, the system message including a plurality of access parameters associated with the target base station, wherein the plurality of access parameters comprise a minimum access level, reselection offset information, an update period, a General Packet Radio Service (GPRS) supporting status, and a Location Area Code (LAC) identification;
determining a security factor corresponding to the target base station according to a matching degree between a value of each access parameter and a pre-stored reference value, wherein determining a security factor corresponding to the target base station comprises:
acquiring a pre-stored reference value of each access parameter of the plurality of access parameters;
determining a matching degree between the value of each access parameter and a corresponding reference value;
determining an adjustment value corresponding to each access parameter according to a pre-stored corresponding relationship between the matching degree and the adjustment value; and
determining a sum value of a pre-stored initial value and the adjustment value corresponding to each access parameter as the security factor corresponding to the target base station;

if the security factor is less than a preset threshold value, accessing the target base station; and
if the security factor is not less than the preset threshold value, maintaining access to a base station currently accessed by the terminal device.

2. The method of claim 1 , wherein identifying the target base station comprises:
identifying the target base station from at least one base station not included in a pre-stored list of one or more prohibited base stations.

3. The method of claim 1 , wherein the system message includes a System Information Block Type3 (SIB3) message.

4. An apparatus for accessing a base station, comprising:
a processor; and
a non-transitory memory for storing instructions executable by the processor;
wherein the processor is configured to:
identify a target base station providing a maximum received signal strength from at least one base station;
receive a system message sent by the target base station, the system message including a plurality of access parameters associated with the target base station, wherein the plurality of access parameters comprise a minimum access level, reselection offset information, an update period, a General Packet Radio Service (GPRS) supporting status, and a Location Area Code (LAC) identification;
determine a security factor corresponding to the target base station according to a matching degree between a value of each access parameter and a pre-stored reference value, wherein in determining a security factor corresponding to the target base station the processor is configured to:
acquire a pre-stored reference value of each access parameter of the plurality of access parameters;
determine a matching degree between the value of each access parameter and a corresponding reference value;
determine an adjustment value corresponding to each access parameter according to a pre-stored corresponding relationship between the matching degree and the adjustment value; and
determine a sum value of a pre-stored initial value and the adjustment value corresponding to each access parameter as the security factor corresponding to the target base station;

if the security factor is less than a preset threshold value, access the target base station; and
if the security factor is not less than the preset threshold value, maintain access to a base station currently accessed by the apparatus.

5. The apparatus of claim 4 , wherein the processor is further configured to:
identify the target base station from at least one base station not included in a pre-stored list of one or more prohibited base stations.

6. The apparatus of claim 4 , wherein the system message includes a System Information Block Type 3 (SIB3) message.

7. A non-transitory readable storage medium storing instructions that, when executed by a processor in a terminal device, cause the terminal device to perform a method for accessing a base station, the method comprising:
identifying, from at least one base station, a target base station providing a maximum received signal strength to the terminal device;
receiving a system message sent by the target base station, the system message including a plurality of access parameters associated with the target base station, wherein the plurality of access parameters comprise a minimum access level, reselection offset information, an update period, a General Packet Radio Service (GPRS) supporting status, and a Location Area Code (LAC) identification;
determining a security factor corresponding to the target base station according to a matching degree between a value of each access parameter and a pre-stored reference value, wherein determining a security factor corresponding to the target base station comprises:
acquiring a pre-stored reference value of each access parameter of the plurality of access parameters;
determining a matching degree between the value of each access parameter and a corresponding reference value;
determining an adjustment value corresponding to each access parameter according to a pre-stored corresponding relationship between the matching degree and the adjustment value; and
determining a sum value of a pre-stored initial value and the adjustment value corresponding to each access parameter as the security factor corresponding to the target base station;
if the security factor is less than a preset threshold value, accessing the target base station; and
if the security factor is not less than the preset threshold value, maintaining access to a base station currently accessed by the terminal device.

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Cui Hengbin
• Sun Long
• Wang Qi

Classifications

• H04W12/08 Primary

  Access security · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04W12/12 Primary

  Detection or prevention of fraud · CPC title

• H04W48/06

  based on traffic conditions · CPC title

• H04W48/08

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