a practical way to enhance signal quality in both up and downlink of wireless point to multi - point cdma service implements basic radio direction finding techniques to allow for optimal diversity combining in an antenna array employing large number of elements . this approach is facilitated through the use of very small bit counts arithmetic and capitalizing on finite alphabet signal structure or a known training sequence . alternate implementations can use floating point data representations . the method facilitates asic implementation , thereby enabling distributed processing to achieve the required computation practicality . the method utilizes the uplink channel data to determine the downlink spatial structure to enhance downlink c / i and hence , increase downlink capacity . the preferred embodiment is optimized to is - 95 , however , any signal that has either a finite alphabet or a training sequence built in can utilize the same idea . the use of the known signal structure facilitates simple array response vector determination and eliminates the necessity for covariance matrix calculation and analysis . hence , this approach can be utilized for gsm and tdma wireless air - interfaces as well .