Method and apparatus for channel assignment and call admission control in communication systems division multiple access space (SDMA)

摘要

A method of channel allocation (600) in a base station in a cell of a wireless communication system between the base station and a subscriber station, the system having conventional channels differentiated wireless communications using frequency assignments, time or code, or by some combination of these assignments, the method characterized by: receiving (604) from the subscriber station measurements of received signal levels reported downlink in each downlink channel; estimating (605), from the signal levels received downlink notified, a level of interference plus noise received downlink that would be obtained for each existing conventional channel if the subscriber station is assigned to a channel of conventional downlink dice; calculating a cost (611) for each channel existing conventional downlink using a predetermined cost function based on estimated interference plus noise levels received downlink; select (617) for allocation to the subscriber station, a channel of conventional downlink having a minimum cost calculated between channels of existing conventional downlink; assign (620) to the subscriber station a channel downlink spatial channel selected downlink conventional channel if the selected conventional downlink is being used in the cell.