Reduced complexity correlator for use in a code division multiple access spread spectrum receiver
US7039134B1 · kind B1 · utility
12Cited by
11References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Feb 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70711
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the present invention is especially well-suited for use in CDMA and W-CDMA spread spectrum communication systems that require the use of numerous correlators in their operation. Multiple input samples, multiple codes and integration results are stored in shift registers and circularly shifted and clocked out at appropriate clock rates such that the multiplication and accumulation steps of the correlation process are synchronized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.