A practical way to enhance signal quality (carrier to interference. C/I) 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...http://www.google.com.au/patents/US6108565?utm_source=gb-gplus-sharePatent US6108565 - Practical space-time radio method for CDMA communication capacity enhancement
