Abstract: An apparatus and method for configuration and optimization of an Automatic Neighbor Relation (ANR) in a wireless communication system are provided. The method of configuring the ANR by a Base Station (BS) in the wireless communication system includes receiving a measurement report message for reporting a neighbor cell's signal quality from one or more User Equipments (UEs), determining a neighbor cell, reported from a UE in an area where a serving cell's signal quality is greater than a first reference value, as an Overlay Neighbor (ON), among neighbor cells reported using the measurement report message, and determining a neighbor cell, reported from a UE in an area where the serving cell's signal quality is less than a second reference value, as a Horizontal Neighbor (HN), among the neighbor cells reported using the measurement report message, wherein the second reference value is set to a value smaller than the first reference value.

Abstract: A cluster-based cooperative communication system and method is provided for mitigating inter-cell interference effectively. A cluster-based cooperative communication method of a mobile station includes receiving allocation of a resource of a weighted subband mapped to one of preset cooperative base station clusters, the selected cooperative base station cluster having a group including a serving base station of the mobile station and dominant interfering base stations found by channel estimation, and communicating with the serving base station in cooperation with the dominant interfering base stations.

Abstract: A cell search method and apparatus in an asynchronous wireless communication system for outputting a cell search result by comparing energy ratios of detected candidate cells with a reference threshold ratio are provided. The method includes determining energy values of correlations between different phases of signals received from neighbor cells, detecting at least one candidate cell in descending order of energy values, and outputting cell search results by determining an energy ratio of the at least one candidate cell and comparing the energy ratio with a reference threshold ratio.

Abstract: Provided are an apparatus and methods for recovering video information when operating in an area that impairs an electromagnetic field of a transmit/receive signal during a video telephony of a portable terminal. A method of which includes determining a number of buffers for storing intra coded (I) frames to be received, transmitting the number of the buffers to a counterpart terminal together with a VFU signal, acquiring video information by storing I frames received from the counterpart terminal, and generating video frames using the acquired video information.

Abstract: A method and an apparatus for allocating resources in a band adaptive modulation and coding (band AMC) mode of a wideband wireless access system are provided. The method includes, when two or more mobile stations transmit channel quality information (CQI) through an overlapping band, examining whether the mobile stations transmit information indicating that the overlapping band is the highest band thereof, comparing tag values of the mobile stations transmitting the information indicating that the overlapping band is the highest band thereof and selecting one of the tag values having the highest priority, allocating a subchannel corresponding to the highest band to the mobile station having the selected tag value, and changing the tag values of the mobile stations transmitting the information indicating that the overlapping band is the highest band thereof on the basis of the result of the comparison to reset the tag values.

Abstract: The present invention relates to a device for gain control and a method for receiving a signal. The device for gain control according to the present invention includes a map interpreter that detects beamforming symbol periods in wireless signals, a power calculator that calculate the average power of the beamforming symbol periods in response to outputs of the map interpreter, a gain calculator that calculates gain control signals on the basis of the output signals of the power calculator, and a switch that outputs gains from the gain control signals, in which the wireless signals are corrected on the basis of the gains.

Abstract: A terminal and method are provided. The terminal includes an Absolute Radio Frequency Channel Number (ARFCN) table including at least one ARFCN information, and a controller for controlling a frequency scanning based on the ARFCN table to detect one or more ARFCNs from the ARFCN table and for controlling a camping on at least one of the detected one or more ARFCNs, such that the camping can be performed based on International Mobile Subscriber Identity (IMSI) information. The camping can be attempted without a scanning procedure for finding an available cell to reduce an amount of time for camping.

Abstract: A Low Density Parity Check (LDPC) encoding apparatus and method are provided. The LDPC encoding apparatus includes a controller for determining a number of zeros b to be inserted in an input information vector when a length of the input information vector is less than a length of a use information vector of a parity-check matrix, for selecting b stopping sets Sd using the parity-check matrix, for selecting one variable node from each of the b stopping sets Sd using a selection scheme, and for determining positions corresponding to the selected variable node from each of the b stopping sets Sd as positions where zeros are to be inserted.

Abstract: An apparatus and method for supporting Peer to Peer (P2P) communication in a broadband wireless communication system are provided. A P2P zone within a frame used for the P2P communication includes at least one channel, each channel includes a broadcasting zone and a contention zone, and a P2P-mode transmit Mobile Station (MS) transmits a reference signal through a broadcasting zone of a channel to which itself belongs. The method MS includes determining an interference sum for each channel within the P2P zone, comparing the determined interference sums with each other, selecting a channel having the least interference sum, and transmitting information regarding the selected channel to a Base Station (BS).

Abstract: A frame structure, a method, and an apparatus for inter-frame resource sharing in a Cognitive Ratio (CR) communication system are provided. An apparatus for sharing a channel in an environment where a plurality of CR communication systems coexist, constitutes a Superframe Control Header (SCH), in one superframe, that includes a frame allocation MAP for frame information allocated to a Base Station (BS), with respect to each BS, and transmits and receives the SCH at the start frame of the frames allocated to the BSs.

Abstract: An apparatus and method for signal transmission-reception in a multi-user multiple transmit and multiple receive antenna radio communication system are provided. An aspect of the present invention is to enhance reception performance and increase the communication channel throughput. This is achieved by applying a new sequence of operations including a vector perturbation procedure along with an efficient perturbation vector searching technique based on single-dimensional optimization of a decision function. In addition, the method ensures simple implementation of a subscriber station receiver. The SS receiver is implemented as independent channels for processing signals of different receive antennas. The receiver can be implemented even if each subscriber station has only one receive antenna. Accordingly, the method proves highly efficient in virtually any propagation environment.

Abstract: An apparatus and a method for supporting multicast communication in a broadband wireless access system are provided. A method of a Mobile Station (MS) for supporting multicast communication in a wireless access system includes acquiring decoding parameters by receiving an Advanced Air Interface Enhanced-Multicast and Broadcast Service configuration (AAI-E-MBS_CFG) message from a Base Station (BS), establishing an E-MBS service flow by sending and receiving AAI Dynamic Service Addition-request/response (AAI_DSA-REQ/RSP) messages to and from the BS, and decoding E-MBS MAP received from the BS through the established E-MBS service flow using the acquired decoding parameters. The E-MBS MAP includes information for decoding multicast bursts.

Abstract: An image displaying method using virtual illumination and a portable terminal using the method are provided. The method includes recognizing a face of a person in a captured portrait, setting virtual illumination in the captured portrait, and displaying a virtual illumination effect according to the set virtual illumination. Therefore, the user can apply desired illumination effect to the captured image to generate an effect that the image was captured under an external light source.

Abstract: A network connection method and apparatus for improving network connection performance of a mobile station in a Broadband Wireless Access (BWA) system is provided.

Abstract: A storage medium storing a master boot record, a computer system having the same, and a booting method of the computer system, the storage medium including: a first sector to store a first master boot record including an execution code for grasping command information and implementing a preset control according to the command information; a first data storage region to store a first data file for booting; a second sector to store a second master boot record to implement booting based on the first data file; a second data storage region to store a second data file for booting; and a third sector to store a third master boot record to implement booting based on the second data file.

Abstract: A multihop relay wireless communication system is provided. A Base Station (BS) includes a calculator for calculating an ACKnowledge (ACK)/Non ACK (NACK) transmission time of at least one Relay Station (RS) using retransmission parameter values, and a transmitter for transmitting the ACK/NACK transmission time information to the at least one RS.

Abstract: Disclosed is a method for transmitting a frame by a base station in a mobile communication system, in which the frame includes at least one uplink Advanced Air Interface (AAI) frame and at least one downlink AAI frame, the uplink AAI frame includes at least one uplink AAI subframe, the downlink AAI frame includes at least one downlink AAI subframe, the downlink AAI subframe includes resource assignment information, feedback information, and data, and the uplink AAI subframe includes feedback information and data.

Abstract: An apparatus and method for supporting both a receiver using a single antenna and a receiver using multiple antennas in a Multiple Input Multiple Output (MIMO) wireless communication system are provided. The apparatus and method in a MIMO wireless communication system include a first synthesizer for generating a first Transmit (Tx) signal by adding a first signal and a second signal, a second synthesizer for generating a second Tx signal by subtracting the second signal from the first signal and a plurality of transmitting units for transmitting the first Tx signal and the second Tx signal through corresponding antennas. Accordingly, receivers having either a single antenna or multiple antennas may be employed in the same communication system.