Equipment and/or functions at a node (e.g., base station) of a cellular telecommunications network are turned off or put into sleep mode during periods of low traffic in order to reduce power consumption by the node. The equipment and/or functions are then turned back on again during periods of high...http://www.google.com/patents/US6584330?utm_source=gb-gplus-sharePatent US6584330 - Adaptive power management for a node of a cellular telecommunications network
