Device and method for time alignment on reverse link in mobile communication system
US6470001B1 · kind B1 · utility
20Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device for time alignment on a reverse link in a CDMA mobile communication system. A base station stores a reference sync channel RTD (Round Trip Delay), calculates the difference between the reference sync channel RTD and a measured sync channel RTD, and outputs a time alignment control signal on a forward control channel when the calculated RTD error exceeds a predetermined value, during a data communication. A terminal receives the time alignment control signal on the forward control channel and time aligns a reverse traffic channel based on the received time alignment control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.