The present invention provides a method of accessing a quiescent mobile vehicle using a wireless communication system. At least one transmit power parameter of a vehicle communication device is determined. At least one sleep duration value is calculated based on the transmit power parameter. The vehicle...http://www.google.de/patents/US20030185162?utm_source=gb-gplus-sharePatent US20030185162 - Method and system for dynamically determining sleep cycle values in a quiescent mobile vehicle
