Method and apparatus for performing efficient correlation computation between data sequence and both of in-phase code sequence and quadrature code sequence
US12224891B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Aug 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2082
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A correlation computation method includes: performing, by a grouping circuit, a grouping operation upon a data sequence according to an in-phase code sequence and a quadrature code sequence, wherein the data sequence is derived from a quadrature phase shift keying (QPSK) modulated signal; performing at least one accumulation operation upon data samples categorized into at least one data sample group by the grouping operation, to generate at least one accumulation result; and deriving a correlation value between the data sequence and both of the in-phase code sequence and the quadrature code sequence from the at least one accumulation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.