Patent · US Active

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

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3References
22Claims
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Inventor

Key dates

Filing dateJun 15, 2023
Grant dateFeb 11, 2025
Priority date
Expiry dateAug 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.