Patent · US Active

Reduced-complexity multiple-input, multiple-output detection

US7583762B2 · kind B2 · utility

1Cited by
6References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 2004
Grant dateSep 1, 2009
Priority date—
Expiry dateFeb 4, 2027

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2025/03643
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A wireless receiver detects signals generated with a multiple-input, multiple-output (MIMO) transmitter. The receiver applies maximum-likelihood detection (MLD) for soft-output signal detection, where an MLD exhaustive search across all candidate vectors is performed recursively by computing and accumulating the differences between, for example, the Euclidean metrics of consecutive candidate tests. Difference terms used for the accumulation are also calculated recursively. An ordering of candidates, such as by a triangular-waveform shaped ordering, is employed such that only one candidate variable is changed between any two consecutive candidate evaluations, leading to a reduced set of computations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.