Synchronization on reverse link of mobile mode communications systems
US7933215B2 · kind B2 · utility
6Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Apr 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18543
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are disclosed to provide orthogonal multiple access communication in a return link of a satellite communication system. In one embodiment, a closed loop control of a transmit parameter associated with transmission of signals may be performed. In addition, changes in motion of a terminal are monitored such that an open loop control of the transmit parameter is performed, if the detected change meets a certain threshold. For example, an open control is performed if an abrupt or sudden motion is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.