Patent ID: 8036285
Filing Date: 2011-10-11
Classification: H04L

Abstract:
1. A communication method in which a succession of time domain symbols are transmitted by a transmitter to one or more receivers, each time domain symbol comprising a plurality of signals which are transmitted in parallel by the transmitter, the signals including data signals or pilot signals, the method comprising: at the transmitter, providing a set of pilot signals assigned to a given time domain symbol with information about a phase vector applied to the signals comprised in the said time domain symbol, the phase vector comprising a sequence of phase elements wherein the phase of each signal of the time domain symbol is adjusted by one said phase element, wherein each of the pilot signals comprised in the set of pilot signals is provided with information about the phase adjustment for one said signal of determinable position within the said time domain symbol and each of the pilot signals assigned to the given time domain signal is adjusted by a different phase element of the phase vector so that each of the set of the pilot signals is provided with information about the phase adjustment for each of the given time domain symbols, and wherein the set of pilot signals assigned to the time domain symbol are carried by signals comprised in a different time domain symbol.