Method for optimizing search communication network by mobile communications terminal
US8116766B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Jan 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method for optimizing a search of a Public Land Mobile Network (PLMN) by a mobile terminal having a nonvolatile memory and a Subscriber Identity Module (SIM) card. The method includes: searching for a PLMN based on priority information registered in the SIM; regarding the PLMN that has been found, determining whether the SIM card includes any priority information about at least one particular radio access technology associated with the PLMN; when priority information is included, selecting a cell of the PLMN; when priority information is not included, determining whether the nonvolatile memory includes any information about at least one particular radio access technology to be selected on a priority basis in a country of the PLMN; when priority information is included, selecting a cell of the PLMN for which the particular radio access technology has been developed; and when priority information is not included, selecting a cell where a radio access technology, which is set beforehand by default in the nonvolatile memory for all countries that are not listed in the nonvolatile memory, has been developed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.