An ad-hoc, peer-to-peer radio access system for cellular communications systems using time division duplex as a way of maximizing the bits/hz/km2 for cellular systems. The network architecture of the ad-hoc system allows the radio access to be integrated with the fixed components of a conventional cellular...http://www.google.com/patents/US6961575?utm_source=gb-gplus-sharePatent US6961575 - Ad Hoc peer-to-peer mobile radio access system interfaced to the PSTN and cellular networks
