1 transmits to the rs 2 b after the rs 2 b queries the bs 1 in real time the management message is an extension to the payload of mac message each field in the mac management message is respectively described in detail as follows management message type indicates that the message is the message used for adjusting sleep mode namely for triggering the ms 3 to enter the trigged listening status the so called trigged listening status is a temporary listening mode the ms 3 should have been in sleeping status within this time interval according to initial setting however in the present invention in order to guarantee that the ms 3 can receive the retransmitted data packets from the bs 1 the ms 3 needs to enter temporary listening status within the time interval thus the listening mode is triggered by the event of retransmitting data packets adjustment options information indicating solution for adjusting temporary triggered window which can be de denoted by two bits for example the starting time of listening window optional namely the triggered time of triggering to enter the triggered listening status the starting time information of the listening window can be denoted by superframe number frame number and or subframe number the starting time can be applied to the solutions 1 and 2 shown in fig5 the number of listening windows optional namely the duration of the triggered listening status the number information of the listening windows can be denoted by the number of superframes the number of frames and or the number of subframes the.