Coherent synchronization of code division multiple access signals
US6963548B1 · kind B1 · utility
13Cited by
87References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/709709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A novel method and apparatus is described for reducing the number of CDMA codes for a constellation of multiple trasponder platforms serving a number of subscribers in the same service area. A coherent processing technique synchronizes the phase of CDMA signals arriving at a subscriber from multiple trasponder platforms to increase the code capacity and thus the number of possible subscribers for most of the multiple transponder platform systems in current use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.