Information systems, detectors, and methods for a communication link, such as the downlink of a cellular telephone system, reduce the problem of uplink transmit power peaks when the uplink is out of synchronization (OoS). One method of indicating that a first link to a communication node is OoS includes...http://www.google.de/patents/US7551597?utm_source=gb-gplus-sharePatent US7551597 - Methods and apparatus for fast downlink information of uplink out-of-synchronization
