Adaptive threshold scheme for tracking and paging mobile users
US6163699A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1997 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Sep 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W68/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of allocating access to a shared media network, with specific application to tracking and paging mobile users of a cellular telephone network. Each cell of the network broadcasts a load factor .alpha., representative of the load on the cell's control channel. Each user in a cell determines a registration priority for itself, and also a registration threshold based on .alpha.. In the preferred embodiment of the present invention, each user is assigned a base threshold time T, and each user in a cell computes a registration threshold time T', based on T and .alpha., and registers its location with the network if the last such registration was longer ago than T'. Users are paged only in cells to which they could have traveled since their most recent location updates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.