Patent ID: 6801514
Filing Date: 2004-10-05
Classification: H04B,H04W

Abstract:
A communications system providing SDMA (spatial division multiple access) communication channels in a non-SDMA system and used in a communications area to effect wireless communications with a plurality of mobile stations in the area, the communication system comprising:a smart antenna that uses a special spectrum to effect the wireless communications with the mobile stations in the communications area; a base station controller that manages transmissions and passes information between every mobile station and an outgoing communications network; a plurality of base transceiver stations electrically connected with the base station controller, each of the base transceiver stations effecting the wireless communications between the mobile stations and the base station controller; a spatial spectrum management system connected between the smart antenna and the plurality of base transceiver stations, the spatial spectrum management system using the spatial spectrum from the smart antenna and choosing a set of communication channels from a plurality of predetermined communication channels according to the position of every mobile station to effect the wireless communications with the mobile stations in the communications area; wherein the spatial spectrum management system uses the smart antenna to emit a plurality of spatial spectrums that are used to transmit the information by taking advantage of the same set of communication channels to respectively effect the wireless communications with the mobile stations and effect the wireless communications between mobile stations via different base transceiver stations and the base station controller to ensure that the wireless communications available to the mobile stations suffers no information interference conditions when the mobile stations in effectively different directions in the communications area are trying to simultaneously effect the wireless communications.