Forward transmission beam forming apparatus and method of the smart antenna in a mobile communication system

摘要

Considering interference problem and the phase unconformity problem until recently due to technology with the portable communication system which uses the smart antenna simultaneously, it offers the device and method in order to optimize the forward direction transmission beam. This invention being the transmission beam formation control control equipment of base station in order to form the transmission beam for the transmission channel signal which transmits from the antenna array which has the plural antenna elements to the portable terminal, presumes the direction of the portable terminal making use of the reception signal and the opposite direction power control bit which are received from the portable terminal, with the weightings vector which was calculated from the weightings vector computer and the weightings vector computer which for the transmission beam calculate the weightings vector for the transmission beam in the direction which is presumed and impressing in the transmission channel signal, the transmission beam formation vessel which it outputs to aforementioned antenna array includesIt features.