Patent ID: 8599950

Claim:
A method, in a multiple-antenna transmitter, of carrying out cyclic delay mapping processing on signals, the method comprising: judging iteratively whether a predefined condition is satisfied; in case that the predefined condition is satisfied, processing multiple branches of signals to be processed with new cyclic delay mapping rules, so as to generate multiple branches of signals after cyclic delay mapping processing corresponding to the multiple transmitting antennas of said transmitter respectively; and in case that the predefined condition is not satisfied, processing the multiple branches of signals to be processed with cyclic delay mapping rules currently used, so as to generate multiple branches of signals after cyclic delay mapping processing corresponding to the multiple transmitting antennas of said transmitter respectively, wherein the cyclic delay mapping rules currently used include: carrying out cyclic delay processing on the multiple branches of signals to be processed with a first cyclic delay parameter vector, so as to generate multiple branches of signals after cyclic delay processing, and mapping the multiple branches of signals after cyclic delay processing to the multiple transmitting antennas based on a first mapping manner, so as to generate multiple branches of signals after cyclic delay mapping processing corresponding to the multiple transmitting antennas respectively; thereby generating multiple branches of signals after cyclic delay mapping processing corresponding to the multiple transmitting antennas of said transmitter respectively.