Patent ID: 6697649
Filing Date: 2004-02-24
Classification: H04L,H04W,Y02D

Abstract:
A mobile communication point for use in a mobile radio network comprising a plurality of communication points, each capable of communicating with other communication points, the communication point comprisinga transmitter/receiver for sending signals to and receiving signals from the other communication points, at least one of the communication points including means to switch that communication point between a high power mode in which it is able to transmit or receive signals and a lower power mode in which it spends most of its time in a sleep state wherein it is unable to transmit or receive signals and a small part of its time able to transmit or receive signals; a data storage means storing data identifying the communication point and storing data identifying the communication point and storing data identifying communication points which have been interacted with recently, wherein the communication point determines whether data about a second communication is stored in its data storage means upon receipt of a transmission from the second communication point, the transmission from the second communication point being in the form of a request to transmit data about a third communication point from its storage means to the second communication point.