Abstract: An apparatus performs a method for generating information indicating channel quality when a dynamic range of a receive signal strength and an interference signal strength is considerable in a wireless communication system using beamforming. A base station (BS) for processing feedback information for scheduling receives from a mobile station (MS) first feedback information comprising a receive signal strength measurement result in paths selected from a plurality of downlink paths between the BSs and the MS, designates a transmit (TX) resource for interference measurement of the MS based on the first feedback information, receives from the MS second feedback information comprising an interference measurement result in the designated TX resource region, and calculates a Signal to Interference plus Noise Ratio (SINR) of the MS based on the first feedback information and the second feedback information. The designated TX resource includes a resource other than a signal TX resource for the MS.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Embodiments of the present invention provide a method and an apparatus for adaptively determining a beam sweeping pattern of a base station in a beamforming-based wireless communication system. An embodiment of the present invention provides an operating method of a serving base station in a wireless communication system, the operating method comprising: receiving, from at least one terminal, beam collision information indicating a collision between beams received from the serving base station and at least one neighboring base station adjacent to the serving base station; and adjusting a beam sweeping pattern of a beam transmitted to the at least one terminal on the basis of the received beam collision information. Various other embodiments of the present invention are also disclosed.

Abstract: The present invention relates to a method for transmitting data in a wireless communication system, comprising the steps of: allocating, by a base station, a resource for transmitting data modulated by a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme in which a QAM scheme and a FSK scheme are combined; transmitting, by the base station, a sequence modulated by the FQAM scheme, to a mobile station, via an interference measurement channel; transmitting, by the base station, a reference signal for measuring channel quality information (CQI) to the mobile station; receiving, by the base station, CQI estimated based on an interference characteristic of the interference measurement channel, from the mobile station, and performing scheduling of the mobile station based on the received CQI and transmitting, by the base station, the data modulated by the FQAM scheme to the mobile station.

Abstract: Provided is a method for configuring a wireless backhaul link by a Mobile Station (MS) in a wireless communication system. The method includes acquiring System Information (SI) for each of an old Base Station (BS) which transmits a first code and a new BS which transmits a second code. The method includes transmitting a message which reports the SI for the new BS to the old BS. The method includes receiving a message indicating that the new BS discards the second code and uses the first code from the old BS, wherein the first code is a code indicating that a related BS is a BS which has been already deployed, and wherein the second code is a code indicating that a related BS is a BS which is newly deployed.

Abstract: The present disclosure provides a method for allocating a code for inter-Base Station (BS) coordinated communications in a radio communication system. The method includes grouping terminals, at least more than a predetermined number of whose transmit and receive beams indicated by the terminals' respective favorite beam configuration information correspond to each other, in a same group; and allocating unique codes to terminals in the same group and sending information regarding the allocated code to each of the terminals.

Abstract: A method and a mobile station of transmitting beam information by a mobile station in a wireless communication system are provided. The mobile station determines whether a particular a particular event according to communication with a base station has occurred, and transmits information on at least one DownLink (DL) transmission beam among N number of DL transmission beams to the base station using a contention-based feedback channel according to a result of the determination.

Abstract: An apparatus and method for allocating resources by using a codebook based on a resource size and a burst size in a broadband wireless communication system are provided. A method of operating a Mobile Station (MS) includes receiving a group configuration message from a Base Station (BS), wherein the group configuration message includes an N-bit first bitmap for indicating that M resource sizes are supported in the group among N resource sizes supported for group resource allocation, where M is less than N, and receiving a group resource allocation message from the BS, wherein the group resource allocation message includes a second bitmap for indicating a size of a resource allocated to a corresponding MS among MSs for which resource allocation is determined.

Abstract: Provided is a method and apparatus for transmitting and receiving a Broadcast Channel (BCH) in a cellular communication system. The method for transmitting a BCH in a cellular communication system includes repeating symbols comprising information about the BCH, code-covering the repeated symbols with codes selected from a previously given code set, subcarrier-mapping the code-covered symbols, and transmitting the subcarrier-mapped symbols in one frame by using different beams corresponding to the selected codes. The codes are selected based on a number of repetitions, a cell identifier, and a beam index.

Abstract: The present invention relates to a method for operating, by a base station, multiple modulation schemes in a wireless communication system, the method comprising the steps of: calculating the number of terminals, among the terminals in a cell managed by the base station, of which a channel state is included in a state that is lower than a preset state; reporting information related to the calculated number of terminals to an upstream entity of the base station; receiving information about a band, assigned by the upstream entity, for a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme on the basis of a QAM scheme and a FSK scheme; and transmitting downwardly the information about the band for the FQAM scheme to the terminals of which a channel state is included in a state that is lower than the preset state. Other modified embodiments on the basis of the technical concept of the present invention are also possible.

Abstract: A method for transmitting a reference signal by a base station in a wireless communication system is provided. The method includes transmitting configuration information for a reference signal to a terminal, performing a scrambling operation which multiplies the reference signal by a sequence on the basis of a beam group identifier for each of at least two beam groups set on a single cell, and transmitting the reference signal, to which the scrambling operation has been performed on the basis of the configuration information, to the terminal.

Abstract: A method by which a small base station (BS) transmits a discovery signal (DS) in a mobile communication system is provided. The method includes a macro BS to which a component carrier (CC) of a predetermined frequency band is allocated, and at least one small base station to which N number of CCs of a frequency band different from that of the CC allocated to the macro base station are allocated. The method comprises the steps of generating the DS corresponding to predetermined information and transmitting the generated DS through a discovery channel (DCH) configured as a transmission resource of the macro base station, wherein the predetermined information is one among information on at least one CC that the small base station uses, cell ID (CID) index information of the small base station, and a sleep base station index when the small base station is in a sleep mode.

Abstract: A method of a terminal that forms beams and a device for performing beam tracking in a communication system that supports beamforming are provided. The method includes detecting, by the terminal, an object located at a periphery of the terminal and performing beam tracking through beams formed by the terminal, except for a beam that is formed in a direction in which the detected object is located.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for channel-related information feedback in a beamforming system, performed by a transmitter is provided. The method includes determining whether a receiver is to feed back gain information about an effective channel established between the transmitter and the receiver using channel-related information between the transmitter and the receiver, notifying the receiver of a feedback mode indicating whether the gain information is to be fed back, upon receipt of feedback information configured based on the feedback mode from the receiver, reconfiguring the effective channel based on the feedback information, and transmitting a signal on the reconfigured effective channel.

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). The method includes: receiving information on a battery threshold of a terminal from a base station; determining whether to use a reception beam width wider than a currently used reception beam width, by comparing a battery level of the terminal with the battery threshold; transmitting additional resource request information to the base station when it is determined that a wider reception beam width is used; and when an additional resource corresponding to the additional resource request information is allocated from the base station, blocking a power supply of at least one antenna reception circuit among multiple antenna reception circuits corresponding to multiple antenna elements in order to form at least one reception beam having the wide reception beam width.

Abstract: The present disclosure is related to a 5th generation (5G) or pre-5G communication system to provide higher data rates than a 4th generation (4G) communication system such as long term evolution (LTE). A method for adjusting a receive beam gain by a user equipment (UE) in a wireless communication system is provided. The method includes estimating a received signal quality value based on a reference signal received from a base station (BS), transmitting information about the estimated received signal quality value to the BS, comparing the received signal quality value with a minimum received signal quality value required for successful reception of data from the BS, and adjusting a receive beam gain to be used for data reception by turning on/off a radio frequency (RF) chain formed for each of antennas included in the UE based on a result of the comparison.

Abstract: A method and an apparatus for transmitting and receiving an uplink signal by a mobile terminal in a wireless communication system are provided. The first mobile terminal includes a receiver configured to receive, from a base station, a power control variable determined based on an interference value for a first receive beam used in order to receive an uplink signal of the first mobile terminal from among a plurality of receive beams of the base station, to receive, from the base station, neighboring receive beam allocation data indicating whether any of the receive beams in the plurality of receive beams, different from the first receive beam, is being used for uplink signal reception, to determine an uplink transmit power value based on the received power control variable and neighboring receive beam allocation data, and to transmit an uplink signal to the base station by using the determined uplink transmit power value.

Abstract: A method of supporting communication of a terminal in a first base station of a beamforming system is provided. The method includes determining an uplink control channel through which both the first base station and at least one second base station are able to receive signals, through cooperation with the at least one second base station, the first base station and the at least one second base station belonging to a cloud cell, and transmitting to the terminal information on the determined uplink control channel and frame information to establish relationships with the base stations included in the cloud cell for each transmit frame of a signal to be transmitted to the terminal from the base stations.

Abstract: A method for operating resources by a base station in a communication system is provided. The method includes transmitting at least one beam to at least one terminal, receiving strength information of the at least one beam from the at least one terminal, determining at least one of resources which are not used for communication between the at least one terminal and the base station, and resources, whose interference to communication between the base station and the at least one terminal is less than or equal to a predetermined threshold, based on the strength information of the at least one beam, and allocating the determined resources as resources for communication which is performed between terminals without the base station.

Abstract: Provided is a distributed scheduling method and apparatus for resource allocation for Device-to-Device (D2D) communication. The method includes sending, by a Mobile Station (MS) including data to transmit, a first resource reservation message through at least one first slot among a plurality of slots constituting a resource reservation unit in a resource reservation channel; and when a second resource reservation message sent by another MS is not sensed in a slot with a higher priority than the first slot in the resource reservation unit, transmitting the data through a transmission resource unit corresponding to the resource reservation unit in a data transmission channel. The resource reservation channel corresponds to the transmission resource unit, and the plurality of slots has mutually cyclic priorities.

Abstract: An apparatus and a method for beam selection and inter-beam scheduling using beam scanning in a beamformed wireless communication system are provided. A method for transmitting a signal in a transmitting stage includes transmitting a reference signal through at least one transmission beam, receiving channel information of at least one transmission beam from a receiving stage, selecting a first transmission beam for sending a signal to the receiving stage, by considering the channel information of the at least one transmission beam provided from the receiving stage, and performing inter-beam scheduling for the receiving stage by considering ID information of the first transmission beam.