Satellite cellular communication methods for performing cell-to-cell handoff
US5574968A · kind A · utility
117Cited by
1References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/083
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Handoff methods perform cell-to-cell handoff between cells of the same satellite and between cells of different satellites. Handoff is initiated by an individual subscriber unit (ISU) based on local conditions. Once handoff is needed, the ISU chooses a candidate cell to transfer its communication based on a dynamic handoff candidate list provided by the satellite. After selecting a candidate cell, the ISU requests handoff, the satellite or satellites perform the handoff and communication begins over a new channel in the candidate cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.