Patent · US Active

Reduced-complexity multiple-input, multiple-output detection

US8077812B2 · kind B2 · utility

2Cited by
7References
21Claims
0Family size

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Inventors

Key dates

Filing dateJul 24, 2009
Grant dateDec 13, 2011
Priority date—
Expiry dateJan 18, 2030

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.