Method and apparatus for acquisition of a spread-spectrum signal
US7085246B1 · kind B1 · utility
48Cited by
39References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70709
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for acquiring a pseudo-random (PN) sequence timing for a code division multiple access (CDMA) radiotelephone. A buffer stores samples of representations of at least one pilot signal. A correlator coupled to the buffer is operable to correlate at least a portion of the samples with a PN sequence at each of a plurality of different PN offsets to produce corresponding correlation energies. A controller coupled to the correlator interrupts the correlator as soon as the PN sequence at a particular PN offset produces a correlation energy at least equal to an energy threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.