methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi - sector base stations and wireless terminals with multiple antennas . timing synchronization is maintained across the base station sectors , and the same set of tones are used in adjacent sectors . in a sector boundary region , which is typically a high interference region , a wireless terminal is set to a sector pair state and operated in a mimo mode of operation , communicating with two adjacent base station antenna faces of the same base station concurrently , the two different adjacent base station antenna faces corresponding to different adjacent sectors . thus , typically high interference sector boundary regions , are converted into high capacity regions by having the sectors coordinated and utilizing mimo techniques .