US 2003/0152099 A1 · Pattern forming method and device for an adaptive antenna array of a base station

Abstract

Based on a selected criterion, a BTS (Base Transceiver Station) for each mobile station (MS) determines an antenna pattern in a reverse channel, based on combined weight factors in weighed combining of signals from antenna array elements during MS signal receiving, and in the forward channel, based on combined weight factors in weighed combining of signals from antenna array elements during MS signal transmission. The antenna pattern determined in the forward channel is performed by the reverse channel signal. The antenna pattern determined in the forward channel is based on the estimate of the angle signal area of mobiles station that is the average angle of signal arrival and its angle sector or on the estimate of average angle of signal arrival only. To determine the desired signal angular area, a decision function is proposed, where powerful interference canceling is implemented.

Claims25

Dependent claims

A method for forming a forward channel pattern in a base station of a communication system equipped with an antenna array, comprising the steps of:

generating complex correlation responses to a signal received by the antenna array in association with L different directions, respectively;
calculating discrete values of an antenna pattern in a reverse channel in association with the L different directions, respectively;
combining the generated complex correlation responses with the discrete values of the antenna pattern associated therewith;
and
generating weight vectors of the antenna array in a forward channel.

2 more elements

Dependencies are inferred from the claim text.

Pattern forming method and device for an adaptive antenna array of a base station

Life of this patent

Pattern forming method and device for an adaptive antenna array of a base station

Life of this patent

Abstract

Claims25