Radio receiver for detecting an additive white Gaussian noise channel

Patent metadata

Field	Value
Publication number	US-8976840-B2
Application number	US-201414291049-A
Country	US
Kind code	B2
Filing date	May 30, 2014
Priority date	May 31, 2013
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

The method disclosed herein is implemented in a radio receiver to detect an AWGN channel, where the radio receiver comprises a rake receiver. The radio receiver receives signals transmitted via a propagation channel from a transmitter, and determines that the propagation channel is an AWGN channel when a filtered version of a minimum value of a metric is lower than a threshold value. The metric relates to a difference between a normalized measured power profile of the propagation channel and a normalized power template, which normalized power template is dependent on predetermined sampling timing shifts and on rake finger positions within the rake receiver.

First claim

What is claimed is:

1. A method in a radio receiver for detecting an Additive White Gaussian Noise (AWGN) channel, which radio receiver comprises a rake receiver, the method comprising:
receiving signals transmitted via a propagation channel from a transmitter;
measuring a power profile of the propagation channel based on the received signals;
calculating a plurality of normalized power templates of an AWGN channel based on rake finger positions within the rake receiver, where…

Assignees

• St Ericsson Sa

Inventors

• Uesaka Kazuyoshi
• Jonsson Elias
• Onozawa Hisashi

Classifications

• H04B1/7117 Primary

  Electricity · mapped topic

• H04B1/7113 Primary

  Electricity · mapped topic