Method and apparatus for estimating initial time alignment in a cellular communications network
US5355515A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1991 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Jun 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for use in a cellular mobile radio telephone system for initially setting a time alignment parameter in a mobile station. The method comprises the steps of estimating an optimal time alignment parameter for use during communication on a new traffic channel of a desired base station based on information available before the communication on the traffic channel is established, sending the estimated time alignment parameter to the mobile station, and setting the time alignment value in the mobile in accordance with the estimated time alignment parameter. An apparatus for initially setting a time alignment parameter is also provided according to a preferred embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.