Method and apparatus for location area updating in cellular communications
US7181212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2001 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Feb 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio access network provides information to a mobile radio terminal indicating a list of one or more geographic coverage areas from which the mobile radio terminal may or may not obtain service. In the preferred example embodiment, a “forbidden” list includes one or more geographic coverage areas from which the mobile radio terminal may not obtain service. The mobile checks the received information when considering whether to request service from a new geographic coverage area, and determines whether to select the geographic coverage area depending on that received information. Moreover, the mobile terminal consults that list to determine whether to perform a location area update procedure. In other words, if the list indicates that a new geographic coverage area should not be selected, the mobile terminal does not perform a location area update request in that new coverage area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.