Method and arrangement for reducing power consumption in a mobile communication network

Abstract

The invention relates to a method and an arrangement for reducing power consumption of a receiver in a mobile communication network comprising a sender transmitting packet data on a downlink channel to one or more receivers over a radio interface. Inactive time instants and listening time instants are defined according to provided rules. The receiver is arranged to listen for information from the sender during the listening time instants and to sleep during the inactive time instants. Thus, less power will be consumed during the inactive time instants.

1 . A method of operating a wireless communication device in a wireless communication network, the method comprising:
 transitioning between a plurality of modes, wherein the plurality of modes further includes a sleep mode and an active mode;   while the wireless communication device is operating in the active mode, receiving control signalling to adjust a length of time for transitioning between a first mode among the plurality of modes and a second mode among the plurality of modes; and   transitioning from the first mode to the second mode based, at least in part, on the adjusted length of time.   
     
     
         2 . A wireless communication device operating in a wireless communication network, the wireless communication device comprising:
 processing circuitry configured to:
 transition between a plurality of modes, wherein the plurality of modes further includes a sleep mode and an active mode; 
 while the wireless communication device is operating in the active mode, receive control signalling to adjust a length of time for transitioning between a first mode among the plurality of modes and a second mode among the plurality of modes; and 
 transition from the first mode to the second mode based, at least in part, on the adjusted length of time.