Abstract: A method and apparatus for performing a carrier management in a broadband wireless communication system supporting multi-carriers are disclosed. A method for a mobile station to perform a carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message including an action code indicating a primary carrier change and an action time, on a serving primary carrier, transmitting an acknowledgement message indicating that the carrier management command message is successfully received in the mobile station, on the serving primary carrier, and switching the primary carrier to a target carrier indicated by the carrier management command message at the action time, wherein the action time is set to a value more than a retransmission timer, the retransmission timer is set to a time during which the base station waits for receiving the acknowledgement message in response to the carrier management command message.

Abstract: A method of allocating resources in a wireless communication system is provided. A wireless device which makes a transition between Low Power Consumption (LPC) mode and active mode receives, from a base station, an allocation message for allocating persistent scheduling resources used in persistent scheduling. The wireless device communicates with the base station using the persistent scheduling resources, for active duration in which the wireless device operates in the active mode. The wireless device deallocates the persistent scheduling resources automatically when the active duration is finished.

Abstract: Disclosed are M2M equipment and base station capable of adjusting load through a scheduling delay. M2M equipment according to the present invention may comprise a receiver which receives a first message including a scheduling delay indicator directing the M2M equipment to delay transmission of uplink data from a base station, and a processor for controlling transmission of the uplink data to be delayed in response to scheduling delay direction of the first message.

Abstract: Disclosed are an apparatus and method for performing group-based machine to machine (M2M) communication. According to one embodiment of the present invention, a method in which a plurality of M2M communication devices from a group, and a specific M2M communication device which is a member of the group performs communication with a base station, comprises the following steps: transmitting, to the base station, a first message for requesting network registration; receiving, as a response to the first message, a second message containing information on the representative M2M communication device which is a representative of the group; and transmitting, to the representative M2M communication device, data to be transmitted to the base station on the basis of the second message.

Abstract: The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently operating a service unavailable mode of femto base station. The method for operating a service unavailable mode of femto base station in the broadband wireless access system according to one embodiment of the present invention, comprises the steps of: determining whether the preset condition for the operation of a service unavailable mode is satisfied; and broadcasting service unavailable mode information for indicating the state of service unavailable mode of the femto base station in accordance with the result of determination on the preset condition.

Abstract: The present invention relates to a wireless access system, and more particularly, to a method for supporting security during a handover performance through a zone switch and to a device performing same. According to one embodiment of the present invention, switching a zone by a terminal in a broadband wireless access system comprises the following steps: creating at least one service flow in a first zone that supports the legacy mode of a base station; receiving at the base station a first message, which indicates a zone switch to a second zone that supports an advanced mode; and performing the zone switch, wherein performing the zone switch may further comprise a step for receiving from the second zone a second message, which includes security association information that indicates the security association applied to at least one service flow in the second zone.

Abstract: The present invention relates to a broadband wireless access system, and more particularly, to a method in which a terminal acquires and updates global carrier configuration information of base stations in a network, and to an apparatus for performing the method.

Abstract: A method and apparatus of operating a femto base station in a wireless communication system is provided. A first announcement message indicating service interruption is transmitted. A second announcement message indicating service recovery is transmitted. The second announcement message is transmitted to a user equipment or a macro base station having a wider cell area than the femto base station. Reliability of a communication service can be maintained for a user equipment even if a service of a femto base station is temporarily interrupted.

Abstract: A method of detecting a facial image includes pre-processing an image; and detecting a face region from the pre-processed image to create facial records of the detected face region. Further, the method of detecting the facial image includes detecting the facial image by creating coordinates of the face and eyes in the input image by using the facial records.

Abstract: A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status.

Abstract: A device, system and method for performing an uncontrolled handover in a mobile station, a ranging request message including an identifier of a serving base station and a first identifier used in the serving base station is transmitted to a first target base station to perform network (re)entry to the first target base station, and a ranging response message including security information and a second identifier for identifying the mobile station is received from the first target base station.

Abstract: The present invention relates to a broadband wireless access system, and more particularly, to a method for an advanced mobile station to efficiently obtain information on a peripheral legacy base station in a mobile communication system in which a legacy system and an advanced system coexist. According to one embodiment of the present invention, the present invention provides a method for a mobile station to receive information on a peripheral base station from a serving base station that operates in a mixed mode in the mobile communication system in which the legacy system and the advanced system coexist, and the method comprises the steps of: receiving a second message that includes first time information for indicating a time when a first message is broadcasted, in a first region for the legacy system of the serving base station through a second region for the advanced system of the serving base station, and receiving the first message from the first region by using the first time information.

Abstract: A method and mobile stations for performing a zone switch, are discussed.

Abstract: The present invention relates to a method and a device for managing carriers allocated to a terminal in a broadband wireless access system that supports multi-carrier. A method for managing carriers by a terminal in a broadband wireless access system supporting multi-carrier includes transmitting, to a base station, activation requests information for requesting the activation of at least one second carrier allocated from the base station through a first carrier according to the power state of the terminal, receiving, from the base station, a first message that includes activation indication information for indicating the activation of at least one target carrier of the at least one second carrier, and transmitting to the base station a second message which notifies the base station whether the at least one target carrier is ready per activation.

Abstract: A device, system and method for performing an uncontrolled handover in a mobile station, a ranging request message including an identifier of a serving base station and a first identifier used in the serving base station is transmitted to a first target base station to perform network (re)entry to the first target base station, and a ranging response message including security information and a second identifier for identifying the mobile station is received from the first target base station.

Abstract: A data mapping method is performed by a memory controller in a data storage system configured to control a nonvolatile memory device having a plurality of channels, where each channel includes a plurality of nonvolatile memories. The data mapping method includes selecting channels of the plurality of channels to be active channels to which data input from a host are written in response to a request from the host, including nonvolatile memories corresponding to each of the active channels in a candidate zone list as active zones, and sequentially writing the data input from the host to the active zones included in the candidate zone list.

Abstract: A method for performing effective handover (HO) in a broadband wireless access system is disclosed. The method for controlling a mobile station (MS) to perform handover in a broadband wireless access system includes receiving a first message including at least one of first index information and second index information from a serving base station (SBS), wherein the first index information indicates a subframe to which an additional ranging opportunity for the mobile station (MS) is allocated from a target base station (TBS) and the second index information indicates a frame to which the additional ranging opportunity is allocated, and transmitting a ranging code to the target base station (TBS) through the additional ranging opportunity indicated by the first index information and the second index information.

Abstract: A device, system and method for performing zone switch based handover in a legacy serving base station by an advanced mobile station (AMS), the method including receiving a ranging response (RNG-RSP) message including a zone switching TLV parameter necessary to perform zone switching to an advanced mobile station support zone (MZone) from a legacy zone (LZone) of a target advanced base station (ABS), and requesting a bandwidth for transmitting an advanced air interface ranging request (AAI_RNG-REQ) message to the MZone using the zone switching TLV parameter.

Abstract: The present invention relates to methods for performing fast handover by a terminal in an environment in which multiple femto base stations exist. A method for performing handover by a terminal includes transmitting, to a serving femto base station, a message for requesting seamless handover within a group including multiple femto base stations, the serving femto base station belonging to the group; receiving, from the serving femto base station, first command message including power information and allocation information; broadcasting an uplink signal that is applied with transmission power indicated by the power information, through an uplink resource indicated by the allocation information; receiving second command messages including measurements of the uplink signal measured by the multiple femto base stations from the serving femto base stations; and performing network re-entry to a target base station among the femto base stations.

Abstract: A method for a terminal to perform a handover including transmitting a ranging request message, containing a field requesting a zone change from a first type of terminal support zone to a second type of terminal support zone of the second type of target base station, to the second type of target base station via the first type of terminal support zone; receiving a ranging response message, containing a field indicating the omission of a capability negotiation message in the event of network reentry, from the second type of target base station via the first type of terminal support zone; and transmitting a second type of capability request message to the second type of target base station via the second type of terminal support zone.