Abstract: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th-generation (4G) communication system, such as long term evolution (LTE), and subsequent systems.

Abstract: A method for operating a base station in a wireless communication system in order to support a plurality of propagation characteristics is provided. The method includes allocating resource periods for respective propagation characteristics, transmitting system information including information on the propagation characteristics, transmitting a reference signal with the propagation characteristic corresponding to the relevant resource period through at least one of the resource periods, and receiving feedback information determining channel qualities for all of the propagation characteristics.

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. The present invention relates to a NOMA system based FQAM connection method and an apparatus therefor. The present invention can increase the user transfer rate at a cell boundary. The scheduling method in a wireless communication system, according to an embodiment of the present invention, comprises a step of receiving a signal-to-interference-noise ratio (SINR) value and an alpha value from a terminal; a step of determining, on the basis of the SINR value and the alpha value, a Gaussian SINR value; a step of pairing users on the basis of the Gaussian SINR value; and a step of re-computing MCS on the basis of a re-computed alpha value.

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 a long term evolution (LTE). A method for transmitting a signal in transmitting apparatus in a wireless communication system supporting a hybrid automatic repeat request (HARQ) scheme is provided. The method includes transmitting a signal to a receiving apparatus; detecting there is a need for a retransmission operation for the signal; and performing the retransmission operation for the signal based on at least one of a reception scheme used in the receiving apparatus or an interference characteristic of an interference signal.

Abstract: A method and an apparatus for operating a transmitter in a millimeter wave communication system is provided. In the method, information of a common and/or control channel is mapped to a dedicated frequency region of a dedicated Radio Frequency (RF) path. Data is mapped to a common frequency region for a common RF path.

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 a long term evolution (LTE). A method for performing a beamforming operation in a wireless communication system supporting a full-duplex scheme includes acquiring reference information for allocating a resource, determining a user equipment (UE) combination of a transmission (Tx) UE and a reception (Rx) UE which is capable of sharing a resource from combinations of at least Tx UE and at least one Rx UE, based on the acquired reference information, and allocating a Tx antenna beam for the Tx UE of the UE combination and an Rx antenna beam for the Rx UE of the UE combination.

Abstract: A communication method and an apparatus using beamforming in a wireless communication system are provided. The communication method includes determining a candidate user set including one or more Mobile Stations (MSs), for Multiple User-Multiple Input Multiple Output (MU-MIMO) transmission, transmitting beam information indicating best Base Station (BS) transmission beams of the MSs of the candidate user set to the MSs of the candidate user set, receiving Precoding Matrix Index (PMI) information indicating a PMI to be used for baseband precoding from each of the MSs of the candidate user set, the PMI information being determined based on the beam information, and transmitting a signal precoded based on the PMI information to at least one MS.

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a data rate higher than that of a 4G communication system, such as LTE, and subsequent communication systems. The present disclosure relates to a method for transmitting a reference signal (RS) in a wireless communication system, comprising the steps of: configuring a transmission resource by including at least one resource block (RB), which does not map the RS, between two RBs, which map the RS, in a first subframe; transmitting a first message for directing an RB offset indicating a gap between the two RBs, which map the RS, and locations of the RBs, which map the RS; and transmitting the RS through the configured transmission resource.

Abstract: The present disclosure relates to transmitting and receiving beam information in a wireless communication system. An operation of a receiving end includes: generating a signal indicating two or more analogue transmission beams which are allocable to the receiving end; and transmitting the signal. In addition, the present disclosure includes other embodiments different from the embodiment described above.

Abstract: A method for determining an uplink (UL) channel quality by a base station (BS) includes obtaining a coverage class (CC) value of a user equipment (UE), receiving a random access (RA) signal from the UE, determining an UL channel quality of a band in which the RA signal is transmitted, based on the CC value and the RA signal, and generating UL resource allocation information based on the UL channel quality and transmitting the UL resource allocation information to the UE. The BS includes a transceiver configured to obtain a CC value of a UE and to receive a RA signal from the UE, and a controller configured to determine an UL channel quality of a band in which the RA signal is transmitted, based on the CC value and the RA signal. A UE includes determines a CC value of the UE based on a DL signal.

Abstract: Disclosed are a method and an apparatus for grouping antennas in a multiple-input multiple-output antenna system. The method of the present invention comprises the steps of: measuring a channel vector for a plurality of antennas of a base station; grouping channel coefficients of the channel vector in accordance with a plurality of antenna grouping patterns and determining grouped codebook vectors corresponding to the grouped channel coefficients; selecting one of the antenna grouping patterns using the grouped codebook vectors for the antenna grouping patterns; and feeding back, to the base station, a pattern index indicating the selected antenna grouping pattern and a codebook index indicating the grouped codebook vector corresponding to the selected antenna grouping pattern.

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 terminal in a wireless communication system according to an embodiment of the present invention comprises: a controller for determining a first size corresponding to a number of bits allocated for a first PMI (precoding matrix indicator) and a second size corresponding to a number of bits allocated for a second PMI; and a transmitting unit for transmitting feedback information, including the first PMI corresponding to the first size and the second PMI corresponding to the second size, to a base station.

Abstract: A method of operating a Mobile Station (MS) in a wireless communication system using beamforming includes receiving a reference signal over a plurality of downlink transmit (Tx) beams, measuring channel quality information of the received reference signal, and generating effective channel quality information by compensating for beamforming gain compensation information according to the channel quality information.

Abstract: A method for operating a Mobile Station (MS) for uplink (UL) power control in a wireless communication system. The method includes: determining an UL Transmit (Tx) power value compensated for a gain difference value between a downlink (DL) Tx beam and an UL Receive (Rx) beam of a Base Station (BS); and transmitting an UL signal based on the determined UL Tx power value.

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 a long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes transmitting, to an evolved node B (eNB), information related to channel quality, information related to a reception (Rx) scheme which the UE is able to apply, and information related to an interference environment characteristic, and receiving, from the eNB, information related to a modulation and coding scheme (MCS) to be applied in the UE.

Abstract: A pre-5th-generation (5G) or 5G communication system for supporting higher data rates beyond 4th-generation (4G) communication system, such as a long term evolution (LTE), is provided. A method for performing a beamforming operation in a communication system supporting a frequency division-multiple input multiple output (FD-MIMO) scheme is provided. The method includes detecting a rough beam of a first dominant beam, detecting at least two codeword candidates based on the rough beam of the first dominant beam, and selecting one of the at least two codeword candidates as a final codeword.

Abstract: An apparatus and a method segment an allocated resource in data transmission in a wireless communication system. When a size of transmission data is large, the data information bit is distributed to one or more forward error correction (FEC) blocks with consideration of a size of the data information bit. A number of data tones is determined based on control information with respect to each of the one or more FEC blocks. The data information bit distributed to the one or more FEC blocks is mapped into a data tone with consideration of the number of data tones determined for each of the one or more FEC blocks.

Abstract: A method for operating a resource in a base station (BS) in a wireless communication system supporting multi-carrier is disclosed. The method includes acquiring reference information related to at least one resource block (RB) to be allocated to a user equipment (UE), determining a RB type to be used in the at least one RB based on the reference information, and transmitting, to the UE, information related to the RB type to be used in the at least one RB. The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for internet of things (IoT), which may be applied to intelligent services based on the 5G communication technology and the IoT-related technology.

Abstract: A transmitter, a receiver, and a method for measuring a radio channel based on reference signals transmitted through a predetermined number of OFDM symbols by using multiple antennas in an ultra-high frequency band, and controlling a beam width of analog beams formed by transmission multiple antennas based on the measurement result. The transmitter uniquely distributes a predetermined number of analog beams among the analog beams formed by the array antenna in correspondence to each of the predetermined number of OFDM symbols, and repeatedly allocates the predetermined number of analog beams distributed for each of the predetermined number of OFDM symbols by targeting the subcarriers within the corresponding OFDM symbol. The receiver receives a channel measurement instruction message, measures a channel state based on reference signals transmitted through the analog beams allocated for respective subcarriers, and feeds the channel state measurement result back to the transmitter.

Abstract: Provided is a method and apparatus for operating a control channel in a beamforming-based wireless communication system. The provided method includes acquiring information indicating a best Base Station (BS) receive beam for Uplink (UL) communication; determining a control channel region for UL control channels in a UL interval considering the best BS receive beam, the control channel region being a predetermined region that is mapped to the best BS receive beam; and exchanging information about the control channel between a BS and a Mobile Station (MS) through the control channel region.