Patent · US Active

Channel estimation using averaging and interpolation

US9143365B2 · kind B2 · utility

0Cited by

20References

27Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Hendrik Schoeneich · Heroldsberg, DE
Stefan Brueck · Nuremberg, DE
Juan Montojo · San Diego, US

Key dates

Filing date	Aug 20, 2013
Grant date	Sep 22, 2015
Priority date	—
Expiry date	Aug 24, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0232
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of performing channel estimation includes receiving a frame that includes, for each subcarrier of a subset of subcarriers in the frame, a pair of pilot symbols in the subcarrier. The subcarriers of the subset are regularly spaced apart from one another in the frequency domain. Time-averaged channel estimates for each subcarrier of the subset are generated based on the pairs of pilot symbols. Frequency-averaged channel estimates for respective subcarriers are generated based on the time-averaged channel estimates. Interpolation is performed between respective frequency-averaged channel estimates to generate interpolated channel estimates for subcarriers between the respective subcarriers.

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