Patent ID: 7961809
Filing Date: 2011-06-14
Classification: H04B,H04L

Abstract:
1. A method of transmitting data signals from at least one transmitting terminal with a spatial diversity capability simultaneously to a plurality of receiving user terminals, each having a spatial diversity receiving capability, the method comprising: dividing data signals into a plurality of streams of sub-user data sub-signals; determining combined data signals in the at least one transmitting terminal, said combined data signals being transformed versions of said streams of data sub-signals, said determining comprising filtering said streams of data sub-signals with a filter so designed that at least one spatial diversity device of the receiving user terminals only receives data sub-signals being specific for the corresponding receiving user terminal and having interference between at least two streams of the plurality of streams of sub-user data sub-signals, said filtering being specific for the corresponding receiving user terminal; inverse subband processing of said combined data signals; transmitting, simultaneously to the plurality of receiving terminals, with said at least one spatial diversity device said inverse subband processed combined data signals; and simultaneously on each of the plurality of receiving terminals: