Patent Document ID: 20040146024
Application ID: 10352774
Patent Flag: 0

Claim One:
1. A method for detecting signals with interference reduction in a wireless communication network, the wireless communication network having a base station using an antenna array and one or more code channels to receive or transmit one or more communication signals from or to a plurality of terminals used by one or more users, each antenna in the antenna array using one or more sub-carriers, an incoming signal frame on a sub-carrier including a user signal for each user followed by corresponding interferences, the method comprising estimating a spatial signature and channel response model per user per sub-carrier based on a first part of the user signal; finding one or more spatial weights based on the estimated spatial signature and channel response model; forming one or more joint detection matrices based on the estimated spatial weights, the channel response model, and user code channel assignment; code correlating the traffic signal to obtain one or more user specific multi-antenna signals; performing spatial combining, using the spatial weights, on one or more multi-antenna signals associated with each user to generate one or more scalar symbol estimates; and performing joint detection based on the scalar symbol estimates using the joint detection matrices to generate refined user specific symbol estimates.