Method for synchronization of a CDMA-signal
US7035244B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Jun 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70701
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for synchronization of an input-chip-sequence (x(ν)) of a CDMA-signal with a Pilot-Chip-Sequence (pn(ν)) having the method steps of: dividing the Pilot-Chip-Sequence (pn(ν)) into subintervals (1, 2, 3 . . . 8); assembling a particular number (2·AnzSub) of the subintervals (1, 2, 3 . . . 8) into subinterval groups; forming at least one summed subinterval group(s) (pnΣ1 (ν), . . . ) by linewise, pairwise arranging respective one-following-the-other subintervals (1,2; 2,3; 3,4; . . . 8,1), with the first subinterval of a particular line being respectively the second subinterval of the previous line, and column-wise adding the chips of all the line-wise, pair-wise arranged subintervals (1,2; 2,3; 3,4; . . . 8,1); and correlating the input-chip sequence with each summed subinterval group (pnΣ1 (ν), . . . ) in a first correlation (5; 5a; 5b) for determining a displacement (Ôffset) between the input-chip-sequence and that of the summed subinterval group(s) (pnΣ1 (ν), . . . ).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.