Spread spectrum modulation method with discontinous spreading code, corresponding demodulation method, mobile station and base stations

摘要

The present invention relates to a spread spectrum modulation using discontinuous spreading codes. The spectrum spreading codes used are sequences of chips wherein at least one chip has the value 0. These codes are called discontinuous spreading codes. Each of the chips with value 0 in the discontinuous spreading code generates a transmit power approaching zero for the corresponding transmitted signal. The present invention is especially applicable in the domain of third generation telecommunication systems for mobile phones. <IMAGE>