Patent ID: 7385955
Filing Date: 2008-06-10
Classification: H04B

Abstract:
1. A signal pre-processing apparatus for compensating a digital signal by using compensation parameters before transmitting the digital signal, the compensation parameters being associated with channel parameters, time parameters and beam parameters, the signal pre-processing apparatus comprising: a serial-to-parallel converter for converting the digital signal to N divided signals, N being an integer larger than 1; L compensation processors, each of the compensation processors making operation of the N divided signals in response to one of the channel parameters and providing a time delay compensation in response to one of the time parameters to generate a compensated signal, L being an integer larger than 1; L beam formation processors, each of the beam formation processors, corresponding to one of the compensation processors, being configured to receive and intensify the compensated signal to generate an intensified signal in response to one of the beam parameters, the L beam formation processors totally generating L intensified signals; and J transmission antennas, each of the transmission antennas receiving the L intensified signals and each of the transmission antennas comprising a signal combination device for combining the L intensified signals into a particular signal.