Patent ID: 7496145
Filing Date: 2009-02-24
Classification: H04B

Abstract:
1. A method comprising: providing a set of orthogonal communication codes for a telecommunications system wherein the set of orthogonal communication codes includes a set of active user codes and a set of inactive user codes; generating a communication signal from the set of active user codes; reducing peak-to-average power ratio of the communication signal by performing a peak cancellation function on the communication signal that minimizes energy distribution among at least one of the set of active user codes and the set of inactive user codes; generating a plurality of combined baseband signals representative of the communication signal from a first digital power matrix; performing the peak cancellation function on each of the combined baseband signals to provide reduced peak-to-average power signals; decomposing the reduced peak-to-average power signals in a second digital power matrix to provide decomposed baseband signals; up-converting each of the decomposed baseband signals to provide up-converted signals; combining the up-converted signals in a first analog power matrix to provide combined up-converted signals; amplifying each of the combined up-converted signals to provide amplified combined up-converted signals; and decomposing the amplified combined up-converted signals in a second analog matrix to provide decomposed amplified up-converted signals.