A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure...http://www.google.de/patents/US20040127214?utm_source=gb-gplus-sharePatent US20040127214 - Wireless communication method and system with controlled WTRU peer-to-peer communications