Abstract: Provided are a method and a device for transmitting data through client cooperation in a wireless communication system. A cooperative device of the client cooperation receives uplink (UL) data from a source device through a frame of a first system, and if the UL data is the data to be transmitted to a base station of the second system, transmits the UL data to the second system. In addition, when receiving downlink (DL) data from the base station of the second system, and the DL data is data to be transmitted to the source device, the DL data is transmitted to the source device through the frame of the first system.

Abstract: The present invention relates to a method for transmitting and receiving data in a wireless communication system. The method of transmitting data in a wireless communication system according to an embodiment of the present invention supports time division duplex (TDD), and a base station transmits data to a terminal through a first sub-frame of a first frame and receives a confirmatory response to the data through a second sub-frame of a second frame. The second frame is determined according to hybrid automatic retransmit request (HARQ) processing latency which is the minimal required time from the reception of the data to the transmission of the confirmatory response by the first frame and the terminal. The second sub-frame is determined according to both the first sub-frame and the numbers of the downlink and uplink sub-frames of the first frame, wherein the downlink and uplink sub-frames are respectively used in the HARQ operation.

Abstract: A method for a handover in a wireless access system supporting multi-carrier operation includes transmitting a handover request message to a serving base station (BS) assigning multi-carriers to the MS through a primary carrier, the multi-carriers including the primary carrier and at least one secondary carrier; receiving, from the serving BS, a handover response message including a BS list and temporary carrier information indicating one of the at least one secondary carrier as a temporary carrier; transmitting, to a target BS selected from the BS list, a ranging request message for synchronizing with the target BS through the temporary carrier while maintaining link connection with the serving BS using the multi-carriers excluding the temporary carrier; receiving, from the target BS, a ranging response message through the temporary carrier; and transmitting, to the serving BS, a handover indication message indicating completion of the handover through the primary carrier.

Abstract: A method for receiving multicast and broadcast service (MBS) data from a base station to a mobile station comprises receiving a sub-packet from the base station in accordance with a predetermined period, the sub-packet including information associated with initial network entry and network discovery included in a secondary-super frame header (S-SFH); and receiving a first MBS MAP from the base station, the first MBS MAP including an S-SFH sub-packet update indicator indicating whether a parameter included in the sub-packet has been changed, wherein the S-SFH sub-packet update indicator indicates whether the changed sub-packet has been transmitted within an MBS scheduling interval (MSI) for which the first MBS MAP is transmitted.

Abstract: The present invention relates to a broadband wireless connection system, and more particularly, to a method for a base station to more efficiently allocate resources to a terminal, and to an apparatus for performing same. In a broadband wireless connection system according to one aspect of the present invention, a method for a base station for continuously allocating resources comprises the steps of: determining a size and location of a continuous allocation resource to be allocated through continuous resource allocation; comparing the size and location of the determined continuous allocation resource with those of previously allocated continuous allocation resources; and transmitting a map information element (A-MAP IE) including resource allocation information set according to the results of the comparison to a terminal.

Abstract: Provided are a connection release method and apparatus for client cooperation in a wireless communication system. A source device and a base station exchange a release request message and a release response message at the stage of a connection release request. The source device releases connection with a cooperative device and then transmits a release report message, which includes the results of the connection release with the cooperative device, to the base station. The base station and the cooperative device are connected through a first system, and the source device and the cooperative device are connected through a second system.

Abstract: The present disclosure relates to a method for performing communication between a terminal and a base station in a radio access system supporting multi-radio access technology (RAT), the method being characterized in that it comprises the steps of performing an access procedure between a first base station supporting a cellular radio access technology and a second base station supporting a short-range radio access technology; the second base station receiving, from the first base station and through a first radio scanner, control information relating to the transmission of an identification signal (IDS) for detecting the second base station of the terminal; and the second base station transmitting the IDS through the first radio channel to the terminal based on the received control information, wherein the first radio channel is the radio channel corresponding to the first base station.

Abstract: A method and device for performing wireless communication ranging are provided. A machine-to-machine (M2M) device receives a paging message from a base station, transmits a bandwidth request (BR) preamble sequence to the base station, receives a first UL grant to allocate an uplink (UL) resource for the transmission of a BR header, transmits the BR header including a ranging request indication parameter to the base station through a UL resource allocated by the first UL grant, receives a second UL grant to allocated a UL resource for transmission of a ranging request message from the bases station, and transmits the ranging request message to the base station through a UL resource allocated by the second UL grant.

Abstract: Provided are a mode conversion method for client cooperation in a wireless communication system and a device thereof. A first device converts a second system repetitively into an active mode which can receive a signal and a non-active mode which cannot receive the signal based on mode conversion information, and detects at least one second device based on the second system in the active mode. The first device is connected to the base station through the second system and another first system.

Abstract: A method for data traffic offloading in a mobile communication system supporting a multi-radio access technology (RAT) and an apparatus using the method is provided. A mobile station receives information on a traffic load of a primary communication system from a base station. The mobile station determines whether to perform offloading to a secondary communication system on the basis of the traffic load of the primary communication system.

Abstract: Provided are a method and device for M2M (Machine To Machine) communication. A M2M device receives a DSA (dynamic service addition) message from a base station, and the DSA message includes an MGID (M2M Group identifier) related to an M2M multicast service. The M2M device receives a paging advertisement (PAG-ADV) message from the base station in an idle mode, and the PAG-ADV message includes the MGID and an action code directing a location update performance. The M2M device transmits a ranging request (RNG-REQ) from the base station to perform a location update.

Abstract: A method and apparatus for communication using multiple carriers is provided. A mobile station receives information regarding at least one assigned carrier selected from the available carriers based on the multiple carrier capability from a base station. The mobile station activates or inactivates the at least one assigned carrier by receiving a message comprising information indicating activation or inactivation of the at least one assigned carrier from the base station. Signaling overhead for managing multiple carriers may be reduced.

Abstract: Provided are a method and an apparatus for monitoring a paging message in machine-to-machine (M2M) communications. An M2M device receives a paging setup for initiating an idle mode from a base station. The paging setup includes information indicating a paging cycle, a first paging offset, and a second paging offset. In the idle mode, the M2M device monitors the transmission of a paging message at the first paging offset of the paging cycle. If the paging message is not received at the first paging offset, the M2M device monitors the transmission of the paging message at the second paging offset of the paging cycle.

Abstract: A method for updating system information in a broadband wireless communication system includes: receiving information by means of superframes including a primary superframe header (P-SFH) and a secondary superframe header (S-SFH), wherein the information including control information transmitted via an information element of the P-SFH (P-SFH IE) and system information transmitted via an information element of a subpacket (SP) of the S-SFH (S-SFH SP IE); decoding the P-SFH IE, wherein the P-SFH IE including a scheduling information bitmap indicating transmitted S-SFH SP IEs in the superframe, a change count (CC) of the S-SFH, and a SP change bitmap indicating changing status of the S-SFH SP IEs; comparing the received CC with a previously stored CC; checking the S-SFH SP change bitmap, when a difference exists between the received CC and the stored CC; and decoding and updating corresponding SP IE of the S-SFH based on the checking result.

Abstract: Disclosed are a method for receiving control information and a terminal device using the same. The terminal is able to receive a non-user-specific A-MAP IE of a specific sub-frame from a base station according as a broadcasting message is transmitted from the specific sub-frame, wherein the non-user-specific A-MAP IE includes an indicator showing that the non-user-specific A-MAP IE is configured in an extended form. The terminal can also obtain scheduling information based on the received indicator, wherein the scheduling information is configured by the type of the extended non-user-specific A-MAP IE. Then, the terminal is capable of decoding the broadcast message in a certain sub-frame based on the obtained scheduling information.

Abstract: Provided are a method and a device for entering a network for client cooperation in a wireless communication system. A first device, through a frame of a first system, receives a ranging request message from a second device, and transmits the received ranging request message to a base station. As a response thereto, the first device receives a range response message, which is a response to the ranging request message, from a base station of a second system, and through a frame of the first system, transmits the range response message to the second device.

Abstract: Provided are a method and a device for transmitting information for client cooperation in a wireless communication system. A first device or a base station of the client cooperation determines whether the first device is operable as a cooperative device for the client cooperation, on the basis of a decision factor. The first device transmits information for carrying out the client cooperation to a second device on the basis of whether the first device is operable as the cooperative device for the client cooperation.

Abstract: A method for updating system information in a terminal in which data is transmitted by means of superframes, includes: receiving system information, scheduling periodicity information of the system information and changing information indicating changing status of the system information transmitted by means of a superframe header (SFH) from a base station; and updating the system information based on the changing information, wherein the SFH comprises a primary SFH including the changing information and a secondary SFH including at least one subpacket containing the system information, the scheduling periodicity information indicating a transmission periodicity of the subpacket is transmitted by means of the primary SFH or a predetermined subpacket, and when the terminal detects that a changed system information transmitted by means of the subpacket is not scheduled as indicated in the scheduling periodicity information, the terminal wakes up until the changed system information is received.

Abstract: Provided are a method and device for ranging in a wireless communication system. A machine-to-machine (M2M) device receives an advanced air interface-system configuration descriptor (AAI-SCD) message including information on a dedicated ranging channel for the M2M device and an M2M parameter change count from a base station, and attempts ranging through the dedicated ranging channel to the base station. At this point, the M2M parameter change count orders information on the dedicated ranging channel in the AAI-SCD message to change.

Abstract: The present invention relates to a broadband wireless access system, and more particularly, a ranging technique of a terminal using a legacy support frame in a mobile communication system including a legacy system and an advanced system. According to one form of an embodiment of the present invention, the ranging method of the terminal for a base station in the mobile communication system having the legacy system and the advanced system comprises the steps of: receiving secondary super frame header (S-SFH) information from the base station; determining whether a frame composition used in the mobile communication system supports the legacy system; acquiring ranging channel information for initial ranging, handover ranging, and periodical ranging from the S-SFH; and performing one or more ranging processes of the initial ranging, the handover ranging, and the periodical ranging in the base station by using the ranging channel information.