Method and apparatus of a multi-code code division multiple access receiver having a shared accumulator circuits
US5870378A · kind A · utility
75Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Aug 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N.gtoreq.1) encoded signal channels over multiple air signal paths. The N signal channels are encoded using a properly chosen subset of Walsh codes based on a Walsh-Matrix, W.sup.M, where M is a power of two. In the disclosed MC-CDMA receiver, a timing correlator means recovers the timing and control signal for the N signal channels received over any particular signal path; a FWHT circuit together with a second correlator means decodes all of the N signal channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.