Patent ID: 6545999
Filing Date: 2003-04-08
Classification: H04L,H04W,Y02D

Abstract:
A wireless communicating method for a system having a plurality of communicating stations and a controlling station for controlling an accessing operation of the plurality of communicating stations, the controlling station being disposed between the communicating stations, a communication signal being transmitted and received between each of the plurality of communicating stations and the controlling station, the communication signal having a control area and a data area structured as a frame on a time division basis, the method comprising the steps of:causing a selected one of the plurality of communicating stations to transmit a communicating station state change request signal to the control station; causing the control station to transmit a communicating station state signal to the selected communicating station so as to cause the selected communicating station to enter into a sleep state; causing a communicating station in the sleep state to receive a start command signal that causes the communicating station receiving the start command signal to cancel the sleep state; and preventing the selected communicating station from communicating in the sleep state until the start command signal is received by the selected communicating station.