Abstract: Disclosed is a method of a handover in a wireless communication system. The method includes transmitting a handover request message to the service BS, and receiving a handover command message from the service BS in response to the handover request message. Multi-carriers are assigned to a terminal in advance right before a handover, and all or some of the multi-carriers are activated right after the handover. Therefore, multi-carrier are effectively utilized.

Abstract: Provided is a method for requesting neighbor base station information by user equipment in a wireless communication system. The method includes: searching neighbor base stations targeted for a handover; transmitting a list request message including preamble information about a neighbor base station searched by the user equipment among the neighbor base stations and a neighbor base station list request indicator indicating a request for information about the neighbor base station to a serving base station; and receiving a list response message including an identification information and system information of the neighbor base station from the serving base station.

Abstract: A method for opearation of femto base station (BS) is provided. The method includes: transmitting the first low duty operation (LDO) pattern information, which includes length information of an available interval (AI) where the femto BS is activated and length information of an unavailable interval (UAI) where the femto BS is inactivated, to user equipment (UE) and operating based on the first LDO pattern where the first LDO cycle, a sequence of the AI and the UAI, is repeatedly arranged. The first LDO pattern information further including a superframe offset as information for leading a start point of the first LDO cycle.

Abstract: A base station management method according to the present invention is a method for managing an operation mode of a base station, and includes determining whether a terminal exists in a cell managed by the base station and operating in a low duty operation mode (LDM) when no terminal exists in the cell.

Abstract: Upper level protocol message transmitting method and apparatus are provided based on a new management message to be used in a portable Internet system. When a base station receives the upper level protocol message to be broadcast, it includes the same in the management message and transmits the included message to all the mobile terminals of a cell, and thus, the total number of the transmissions is decreased, thereby increasing a wireless efficiency.

Abstract: A method in which a terminal that supports a multi-carrier manages a primary carrier, including: receiving a primary carrier change command from a base station; and changing the primary carrier from a serving primary carrier to a target primary carrier.

Abstract: In a retransmitting method, at least one ARQ block included in a first PDU is fragmented into a plurality of ARQ sub-blocks, and at least one second PDU is generated from the plurality of ARQ sub-blocks. The second PDU includes a payload including an extended header and at least some of a plurality of ARQ sub-blocks. The extended header includes a field representing a sequence number of the first ARQ sub-block belonging to the payload.

Abstract: A multicast broadcast service (MBS) receiving device establishes an MBS connection with an MBS transmitting device through a connection establishment message. When it is determined to receive MBS right after establishing the MBS connection, the MBS receiving device starts to receive the MBS right after establishing the MBS connection. When it is determined to not receive MBS right after establishing the MBS connection, the MBS receiving device transmits an MBS report message to the MBS transmitting device and then starts to receive the MBS.

Abstract: An MBS transmitting apparatus allocates a plurality of time intervals of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the time intervals, allocated to the MBS region, to one or more MBS zones and generates MBS zone allocation information of the one or more MBS zones. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits the MBS data through the time intervals allocated to the MBS region.

Abstract: An MBS transmitting apparatus allocates a plurality of subbands of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the subbands, allocated to the MBS region, to at least one MBS zone and generates MBS zone allocation information of the at least one MBS zone. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits MBS data through the subbands allocated to the MBS region.

Abstract: A method of managing carriers in a terminal of a multi-carrier system is provided. The method includes switching from a primary carrier to an MBS carrier for an MBS, receiving MBS-associated data from a base station through the MBS carrier, returning to the primary carrier from the MBS carrier after receiving the MBS-associated data, and communicating with the base station through the primary carrier.

Abstract: A method of acknowledgment by a receiver includes: receiving a control message via a payload of a medium access control protocol data unit (MAC PDU) from a transmitter or receiving control information through an extended header or signaling header of the MAC PDU; and transmitting an acknowledgment of the control message or control information through an acknowledgment extended header containing information about whether the acknowledgment is an acknowledgment of the control message or an acknowledgment of the control information.

Abstract: Disclosed is a method for transmitting multicast broadcast service (MBS) data in a wireless communication system, the method comprising: transmitting an MBS MAP, which comprises MBS AAI subframe offset and MBS resource index. MBS AAI subframe offset and MBS resource index indicate the end subframe (i.e.

Abstract: A method of a base station transmitting Multicast Broadcast Service (hereinafter referred to as MBS) includes transmitting MBS configuration information, including information about an MBS region which is a resource region to which MBS-related information is allocated and information about an MBS MAP, to a terminal and transmitting MBS data to the terminal through the MBS region. The information about the MBS region includes location information and a transmission parameter of the MBS region. The MBS MAP includes an MBS configuration information change indication which indicates whether the MBS configuration information is expected to change from first MBS configuration information to second MBS configuration information. MBS is effectively and persistently managed in a mobile wireless communication system supporting MBS.

Abstract: The present invention relates to a handover management method that can reduce a service interruption time due to handover of a mobile station in a wideband wireless access system. A handover management method according to an exemplary embodiment of the present invention includes receiving a handover request message from a serving base station, transmitting a handover response message that includes a basic channel identifier to be allocated to a mobile station, receiving a ranging request message from the mobile station using the basic channel identifier, and using the basic channel identifier to start uplink/downlink communication with the mobile station.

Abstract: A method for receiving multicast broadcast service (MBS) data by a mobile station (MS) in a mobile wireless connection system which comprises receiving MBS-related information of at least one neighbor base station (BS) from a serving BS, performing handover from the serving BS to a target BS selected from the neighbor BSs, determining whether or not MBS-related information of the serving BS and MBS-related information of the target BS are identical, updating MBS-related information of the MS based on the determination results and receiving MBS data by using the updated MBS-related information of the MS, wherein the received MBS-related information of the neighbor BS comprises at least one of indication information indicating whether or not the MBS-related information of the neighbor BS and the MBS-related information of the serving BS are identical, information required to be updated among the MBS-related information of the serving BS, and every MBS-related information of the target BS is provided.

Abstract: There is provided a method of transmitting multicast broadcast service (MBS) data using a superframe including a plurality of subframes in a mobile wireless connection system, the method including transmitting MBS MAP indication information indicating the first at least one first resource unit of an MBS region in the beginning of an MBS scheduling interval (MSI) and MBS control information including subframe offset information; transmitting an MBS MAP through the first resource unit; and transmitting an MBS burst indicated by the MBS MAP, wherein the subframe offset information including an index of the subframe at a point where the MBS burst is ended.

Abstract: A method of providing location information in a wireless communication system includes receiving a location information request message, including Location Based Service (LBS) control information, from a Base Station (BS), the LBS control information being information about a condition in which location information is reported, performing LBS measurement, and if the condition is satisfied, transmitting a location information response message, including location information collected through the LBS measurement, to the BS. In accordance with the present invention, in a wireless access system supporting LBS, LBS-related information can be reported irrespective of the state of a User Equipment (UE). In particular, in the case in which a UE is in an idle state, location information can be provided efficiently and rapidly.

Abstract: There is provided a method for transmitting data by a base station (BS) in a multicast broadcast service (MBS) supporting multiple carriers in a wireless communication system. The method comprises receiving a switching request message indicating an E-MBS service requested by a mobile station (MS), from the MS, transmitting a switching response message including information regarding a switching start time among a plurality of carriers set in the MS and transmitting data regarding an E-MBS service requested by the MS to the MS through a primary carrier, starting from the switching start time. Alternatively, there is provided a method for receiving data by a mobile station (MS) in a multicast broadcast service (MBS) supporting multiple carriers in a wireless communication system.

Abstract: A method of transmitting broadcast information by using multiple carriers is provided. The method includes: configuring a superframe for an operation of the multiple carriers; and transmitting the broadcast information through at least one primary carrier selected from the multiple carriers. Accordingly, the multiple carrier system can effectively manage respective carriers, and particularly can effectively use radio resources in transmission of broadcast information.