Patent ID: 8369380
Filing Date: 2013-02-05
Classification: H04B,H04J,H04L

Abstract:
1. A transmitter comprising: a first scramble code multiplying unit configured to multiply a symbol sequence forming a pilot signal by a scramble code, wherein the symbol sequence of the pilot signal is to be used by a receiver that receives the pilot signal for performing channel estimation; a first generation unit configured to generate a symbol pattern by performing symbol repetition a predetermined repetition number of times on the symbol sequence of the pilot signal multiplied by the scramble code by the first scramble code multiplying unit; a second scramble code multiplying unit configured to multiply a symbol sequence faulting a channel different from the pilot signal by a scramble code; a second generation unit configured to generate a symbol pattern by performing symbol repetition a predetermined repetition number of times on the symbol sequence multiplied by the scramble code by the second scramble code multiplying unit; a switching unit configured to temporally switch between output of an output signal from the first generation unit and output of an output signal from the second generation unit; and a multiplying unit configured to multiply an output signal from the switching unit by a phase specific to the transmitter, wherein the repetition number of times in the first generation unit is different from the repetition number of times in the second generation unit.