Patent · US Active

Cyclic shift delay detection using a channel impulse response

US8971428B2 · kind B2 · utility

2Cited by

4References

20Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Abdelmonaem Lakhzouri · Tampere, FI
Florean Curticapean · Tampere, FI

Key dates

Filing date	Sep 21, 2012
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Dec 17, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04W64/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Systems, apparatus and methods for determining a cyclic shift diversity (CSD) mode are presented. Examples use a channel impulse response (CIR) to determine a current CSD mode. Specifically, a channel impulse response from an orthogonal frequency-division multiplexing (OFDM) symbol, which forms CIR samples. The CIR samples are examined to find a local maxima. A current CSD mode may be selected based on the local maxima found in the CIR samples.

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