Patent ID: 8457037
Filing Date: 2013-06-04
Classification: H04B,H04L

Abstract:
1. A receiver, comprising: a first receiving stage to receive a first bit stream of I,Q symbols that have been further modulated with a first varying overlay phase shift; a first overlay offset angle detection stage to detect the value of the first offset angle as transmitted; a first overlay demodulation stage to detect a direction of the first overlay phase shift; a second receiving stage to receive a second bit stream of I,Q symbols that have been further modulated with a second varying overlay phase shift; a second overlay offset angle detection stage to detect the value of the second offset angle as transmitted; a second overlay demodulation stage to detect a direction of the second overlay phase shift; and a maximal ratio combining stage that combines the first and second overlay bit streams using the following correction factors to MRC weightings: wherein C1 is the weight for the first overlay bit stream, C2 is the weight for the second overlay bit stream, offset angle Sat1 is the first offset angle as transmitted and offset angle Sat2 is the second offset angle as transmitted, and wherein Sat2>Sat1.