Patent · US Active

Channel estimation in OFDM receiver equipment

US9178738B2 · kind B2 · utility

1Cited by

5References

21Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Leif Wilhelmsson · Lund, SE
Jim Svensson · Lund, SE

Key dates

Filing date	Feb 18, 2010
Grant date	Nov 3, 2015
Priority date	—
Expiry date	Jan 6, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/03159
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A receiver is operated so as to receive data conveyed on an Orthogonal Frequency Division Multiplexed (OFDM) signal transmitted on a plurality of sub-carriers. Such operation includes ascertaining which of the plurality of sub-carriers have a channel quality that satisfies one or more criteria. Then, sub-carriers are selected based at least in part on whether they have the channel quality that satisfies one or more criteria. The receiver then fully processes data streams only from the selected sub-carriers, wherein fully processing data streams comprises sub-carrier channel estimation or sub-carrier equalization or both sub-carrier channel estimation and sub-carrier equalization.

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