Patent Number: 6,298,035

Title: Estimation of two propagation channels in OFDM

Abstract: A method and apparatus for estimating separate channel frequency responses for two channels in an orthogonal frequency division multiplexing system with two transmitters is disclosed. The channel frequency responses are estimated using specifically selected training symbols that are broadcast from the two transmitters. The training symbols are specifically selected so as to improve the estimation of the channel frequency responses for each channel, while requiring the same amount of training symbols as in an estimation of the channel frequency response of a single channel.

Inventors: Heiskala; Juha (Irving, TX)

Assignee: Nokia Networks Oy

International Classification: H04L 25/02 (20060101); H04L 27/26 (20060101); H04L 25/03 (20060101); H04K 001/10 (); H04L 027/28 ()

Expiration Date: 10/02/2018