摘要:
Disclosed is a ranging transmission method comprising: a mobile station receiving a message including backoff window information from a base station; the mobile station determining an x-th backoff window for an x-th (x is a non-negative integer) ranging transmission using the backoff window information; the mobile station performing the x-th ranging transmission to the base station within the x-th backoff window; and the mobile station determining a start point of an (x+1)th backoff window on the basis of an end point of the x-th backoff window.
摘要:
The present invention relates to a method for performing a cooperative operation between heterogeneous networks and a device for same. A method for a first type base station to perform a cooperative operation between heterogeneous networks in a wireless communication system includes receiving a downlink synchronization channel from at least one second type base station; obtaining an identifier (ID) of the second type base station by using the received downlink synchronization channel; and transmitting at least one of a channel number and a bandwidth of a center frequency of the first type base station and the cell ID of the second type base station to a server. The first type base station and the second type base station use different wireless communication methods or wireless access methods.
摘要:
Disclosed is a ranging transmission method comprising: a mobile station receiving a message including backoff window information from a base station; and the mobile station performing ranging transmission on the basis of the backoff window information, wherein the message includes a ranging backoff window indicator indicating an increase or decrease in a backoff window size for ranging retransmission.
摘要:
The present invention provides various methods and an apparatuses for supporting a group delegator (GD) in a wireless access system supporting Machine to Machine (M2M) communication. A method for selecting the group delegator (GD) in a wireless access system supporting the Machine to Machine (M2M) communication, according to one embodiment of the present invention, comprises the steps of: an M2M device belonging to an M2M group receiving a broadcasting message including a first critical value, which is used for selecting the GD; an M2M device generating a first random value, which is used for selecting the GD; and selecting the GD by comparing the first critical value and the first random value.
摘要:
Disclosed is a ranging transmission method comprising: a mobile station receiving a message including backoff window information from a base station; and the mobile station performing ranging transmission on the basis of the backoff window information, wherein the message includes a ranging backoff window indicator indicating an increase or decrease in a backoff window size for ranging retransmission.
摘要:
The present invention relates to a method for transmitting and receiving data via a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting a multi-radio access technology, and the method may include performing a network (re)entry procedure with the first base station; receiving control information required for an access to the second base station located in the vicinity of the first base station from the first base station; performing a scanning procedure for at least one second base station located in the vicinity of the first base station; receiving an instruction message instructing an access to the second base station from the first base station; and performing an access procedure with the second base station.
摘要:
The present invention relates to a method for performing a cooperative operation between heterogeneous networks and a device for same. A method for a first type base station to perform a cooperative operation between heterogeneous networks in a wireless communication system includes receiving a downlink synchronization channel from at least one second type base station; obtaining an identifier (ID) of the second type base station by using the received downlink synchronization channel; and transmitting at least one of a channel number and a bandwidth of a center frequency of the first type base station and the cell ID of the second type base station to a server. The first type base station and the second type base station use different wireless communication methods or wireless access methods.
摘要:
The present invention relates to a method for transmitting and receiving data via a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting a multi-radio access technology, and the method may include performing a network (re)entry procedure with the first base station; receiving control information required for an access to the second base station located in the vicinity of the first base station from the first base station; performing a scanning procedure for at least one second base station located in the vicinity of the first base station; receiving an instruction message instructing an access to the second base station from the first base station; and performing an access procedure with the second base station.
摘要:
Disclosed is a ranging transmission method comprising: a mobile station receiving a message including backoff window information from a base station; and the mobile station performing ranging transmission on the basis of the backoff window information, wherein the backoff window information comprises information indicating a size K0 of a 0-th backoff window, wherein a size Kx of a nx-th (x being a non-negative integer) backoff window is determined according to Kx=K0/(2x) wherein x denotes a ranging retry count.
摘要:
The present invention relates to a method for transmitting multicast data to M2M devices, to a method for transmitting a reliable MAC control message, and to devices for supporting the methods. The method for receiving multicast data by an idle-mode M2M device in a wireless access system comprises the following steps: receiving a paging group identifier information message, including a multicast traffic indication (MTI) field indicating whether a paging message is transmitted; monitoring a paging frame for receiving the paging message in a paging listening period in an idle mode; if the paging message is not received in the paging frame, transmitting a ranging request message including an M2M operation code and an M2M group identifier; and receiving a ranging response message, including an M2M response code and a multicast transmission start time (MTST) field.