Location update protocol
US6810259B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2000 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A location update protocol is provided for use in a mobile communications network having a distributed cache for managing subscriber profile information associated with each of a plurality of subscribers of the network. The network includes a plurality of base stations each including a memory unit having a local database for storing: a local subscriber list including a plurality of locally owned cache entries each having an associated subscriber key value, and an associated locally owned subscriber profile; and a global subscriber list including a plurality of global cache entries each having an associated subscriber key value, and an associated location value indicating a node in the network at which an associated subscriber profile is stored. Each of the base stations is operative to transfer and copy selected ones of the cache entries to other ones of the base stations for the purposes of managing and accessing the distributed cache. Each of the base stations is further operative to access an associated mirror base station list indicating at least one associated mirror one of the base stations. The local database of each of the base stations further provides for storage of a mir…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.