Spectrum shaping using code-hopping CDMA
US7711028B2 · kind B2 · utility
2Cited by
1References
27Claims
0Family size
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Key dates
| Filing date | Aug 2, 2005 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Sep 17, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/16
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for spectrally shaping a communication signal is provided. The method comprises generating a plurality of spreading codes, assigning a probability to each of the plurality of spreading codes, and modulating the communication signal by hopping between the plurality of spreading codes such that a time-average proportion of time spent using any one of the plurality of spreading codes is equal to the probability assigned to that spreading code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.