METHOD AND ARRANGEMENT FOR REDUCING POWER CONSUMPTION IN A MOBILE COMMUNICATION NETWORK

摘要

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.

主权项

1. A method of operating a receiver in a wireless communication system, the method comprising:
transitioning, in a receiver, from a first mode to a second mode, wherein the receiver does not listen for downlink data transmissions while operating in the first mode, and wherein the receiver listens for downlink data transmissions while operating in the second mode; while the receiver is operating in the second mode, receiving one or more packets from a transmitter as part of a packet data transmission; in response to determining that a packet of the packet data transmission has been received in error:
transmitting a negative acknowledgement to the transmitter; andadjusting a length of time for the second mode based, at least in part, on a time period associated with retransmitting the packet received in error; and transitioning, in the receiver, from the second mode to the first mode based, at least in part, on the adjusted length of time for the second mode.