MEDIA ACCESS CONTROL METHOD FOR MACRO-CELL BASED M2M NETWORK AND ITS APPRATUS THEROF

摘要

PURPOSE: A macro cell M2M(machine to machine) network MAC(media access control) method and M2M apparatus using the same are provided to support a M2M communication device which is operated in a low duty cycle. CONSTITUTION: An M2M device(701) requests connection by using a random access method in a contention access section of a firs frame section in a wireless network by using received information(S714). The M2M device receives information for a free contention section where an M2M device is exclusively used in the wireless network for the connection request(S718) and a response for the access request from an AP(access point)(702). When the AP is necessary to receive aperiodic first traffic, the M2M device transmits the first traffic by using a random access method in a contention access period of a second frame section in the wireless network(S734). [Reference numerals] (701) M2M device; (702) AP; (S710,S711,S731) Broadcasting channel transmission; (S711) Broadcasting channel transmission; (S712) Broadcasting channel listening; (S714) Access request using random access; (S716) Time division sharing method using dedicated traffic channel allocation, node ID allocation; (S718) Allocated dedicated traffic channel, transmitting a node ID to AFCH; (S730) In case of aperiodicity traffic generation; (S731) Broadcasting channel transmission; (S732) Broadcasting channel listening; (S734) Transmitting traffic using random access; (S736) Traffic reception, response information creation; (S738) Transmitting response information to AFCH; (S740) In case of aperiodicity traffic generation; (S742) Wakeup schedule confirmation; (S744) Notifying traffic information to paging through a broadcasting channel; (S750) Broadcasting channel listening; (S752) Transmitting a temporary traffic channel to AFCH; (S754) Receiving AFCH listening and temporary traffic channel information; (S760) Transmitting traffic through a temporary traffic channel; (AA) Maintaining activation in a lower broadcasting section according to a wakeup schedule; (BB) When periodicity traffic is generated, the periodicity traffic is transmitted to an allocated dedicated traffic channel