Abstract: Transmission channels are selected in a multiantenna network radio connection in which data are transmitted using radio signals between a radio base station and a mobile terminal. The mobile terminal has at least one decoder, by means of which radio signals received by at least one of the terminal antennas can be decoded in order to obtain the data. By means of the transmission channel selection, it is decided which transmission path and/or which communication technology is to be used for the transmission of the data between the radio base station and the mobile terminal.

Abstract: An electromagnetic wave sensing electronic device includes: a communication module configured to communicate with an external electronic device; at least one electromagnetic wave reception antenna configured to detect an electromagnetic signal generated from the external electronic device; a memory; and at least one processor, wherein the memory stores instructions causing the processor to, when executed, receive the electromagnetic signal, when the received electromagnetic signal has a predetermined range intensity or a predetermined range frequency characteristic, analyze the received electromagnetic signal, identify the external electronic device, based at least on the analysis result, identify a type of the electromagnetic signal, based at least one the analysis result, determine a proximity location between the electronic device and the external electronic device, based at least on the identified type of the electromagnetic signal, identify one or more predetermined functions corresponding to the determi

Abstract: There is provided a base station that supports multi-user MIMO and performs communication with a plurality of mobile stations of a radio communication system including the base station and the plurality of mobile stations, the base station including a determination unit that determines a number of a plurality of streams to be transmitted to each of the plurality of mobile stations and parameters to be applied to each of the plurality of streams to be transmitted to each of the plurality of mobile stations based on a channel estimation value for each of the plurality of mobile stations, and a transmitter that generates a determined number of streams according to the parameters determined by the determination unit to be transmitted to the respective plurality of mobile stations.

Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. A wireless transmit/receive unit (WTRU) including a transceiver and a processor is configured to receive, via the transceiver, an orthogonal frequency division multiplexing (OFDM) signal, wherein the OFDM signal comprises a channel coded data stream that was space frequency block coding (SFBC) encoded such that the SFBC encoding was performed using a plurality of pairs of OFDM sub-carriers. The processor is further configured to decode the OFDM signal.

Abstract: Aspects of the subject disclosure may include, a system for generating electromagnetic signals that resonate in a cavity having a plurality of reflectors resulting in resonating electromagnetic signals and combining the resonating electromagnetic signals to form an electromagnetic wave that traverses a reflector and couples onto a physical transmission medium. Other embodiments are disclosed.

Abstract: A detection device for communicating with an external device includes a smart antenna, a storage device, and a processor. The smart antenna is capable of switching between a plurality of antenna modes. In each of the antenna modes, the smart antenna transmits a test datum and receives a feedback datum according to the test datum, the processor performs a time reversal algorithm to the feedback datum so as to obtain a time reversal datum, the processor calculates an indicator according to the feedback datum and the time reversal datum, and the storage device stores the feedback datum, the time reversal datum, and the indicator. The processor compares all of the indicators with each other and controls the smart antenna to select the final mode of the antenna modes according to a comparison between all of the indicators.

Abstract: This invention presents a millimeter wave (mmWave) Distributed Wireless Smart Antenna (DWSA) or scanning-capable repeater that can form different radio wave beam patterns to scan for spatial beam direction(s) or beam alignment to build one or more mmWave wireless links with one or more User Equipment, and complete pass-through beamforming with one or more central base stations.

Abstract: The present application provides a method for transmitting, by an eNodeB, control information to a user equipment including distributed antenna units and a central unit for controlling the distributed antenna units, in a wireless communication system. Particularly, the control information transmission method may comprise the steps of: transmitting distributed antenna unit-common control information which is scrambled by a first identifier; and transmitting distributed antenna unit-specific control information which is scrambled by a second identifier, wherein the first identifier is an identifier of the user equipment, and the second identifier is a predetermined value which is determined on the basis of the identifier of the user equipment and an index of each of the distributed antenna units.

Abstract: A base station radio transceiver transceives beams with a UE. In a first beam set of wide beam reference signals (RS), each wide beam RS direction is unique, and in a second beam set of narrow beam RS, each narrow beam RS direction is unique and the width of the narrow beam RS is narrower than the width of the wide beam RS. A linkage uniquely links each narrow beam RS to a wide beam RS. The direction of each narrow beam RS is spatially nested within the width of the wide beam RS to which it is uniquely linked. A processor uses the first and second beam sets in a beam management process in which one of the narrow beam RS is selected for the UE and the wide beam RS uniquely linked to the selected narrow beam RS is selected for the UE according to the linkage.

Abstract: A node is provided to operate in a wireless network. The node comprises scanning circuitry to perform a scanning process to detect one or more upstream nodes of said wireless network; connection circuitry to form a connection to one of said one or more upstream nodes in response to said scanning circuitry completing said scanning process, wherein said connection is broken as a consequence of said scanning process; storage circuitry to store one or more triggers; and processing circuitry to cause said scanning circuitry to perform said scanning process in response to one of said one or more triggers.

Abstract: A device includes first and second directional antennas, an omnidirectional antenna, and a switch selectively coupled between the first directional and omnidirectional antennas. A first radio includes first RF circuitry. A switch selectively couples the first omnidirectional antenna or the first directional antenna to the first radio. A second radio is coupled to the second directional antenna and includes second RF circuitry. An application processor receives, from first RF circuitry, a first radio frequency performance indicator (RFPI) value for signals received over the omnidirectional antenna, a second RFPI value for signals received over the first directional antenna, and, from the second RF circuitry, a third RPI value for signals received over the second directional antenna. The application processor determines a best RFPI value, selects an antenna corresponding to the best RFPI value, and selects a radio corresponding to the selected antenna.

Abstract: A radar sensing system for a vehicle includes transmit and receive pipelines. The transmit pipeline includes transmitters able to transmit radio signals. The receive pipeline includes receivers able to receive radio signals. The received radio signals include transmitted radio signals that are reflected from an object. The transmitters phase modulate the radio signals before transmission, as defined by a first binary sequence. The receive pipeline comprises at least one analog to digital converter (ADC) for sampling the received radio signals. The first binary sequence is defined by least significant bit (LSB) outputs from the at least one ADC.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit a precoded reference signal to prevent interference with an incoming signal from a base station. The UE may determine a precoder for the reference signal based at least in part on a whitening matrix. In some examples, the UE may determine the precoder based at least in part on the whitening matrix and an effective channel between the base station and the UE. The precoded reference signal may be used by devices in other wireless communications systems to avoid interfering with a signal being received by the UE. In some examples, the UE may alternatively or additionally transmit an indication of the number of additional layers of the link between the UE and the base station that may be nulled out for a second link.

Abstract: Aspects of this disclosure provide techniques for detecting and recovering from beam-failure events. In some embodiments, motion sensor information generated by motion sensors on a UE is used to detect, predict, and/or recover from a beam failure event that results, or would otherwise result, from movement of the UE. The motion sensor information may be used to adjust a current beam direction used by the UE to transmit or receive a signal, or to determine a recommendation for adjusting a current beam direction of the base station. The motion sensor information may be generated by any sensor that detects a movement of the UE, such as a gyroscope, an accelerometer, a magnetometer, a global positioning system (GPS) sensor, a global navigation satellite system (GNSS) sensor, or any other device that detects a change in position/orientation of the UE.

Abstract: The present disclosure provides methods and devices for transmitting and receiving a pilot signal, so as to reduce the number of antenna ports for transmitting the pilot signal and reduce pilot resource consumption. The method for transmitting the pilot signal includes: generating, by a base station, a pilot signal formed by a wide beam and a pilot signal formed by a plurality of narrow beams; and transmitting, by the base station, the pilot signals to a UE through at least one pre-configured first antenna port and at least one pre-configured second antenna port, the pilot signal formed by the wide beam being transmitted through the first antenna port, and the pilot signal formed by the plurality of narrow beams being transmitted through the second antenna port.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may transmit directional signals in a sweeping transmission pattern while receiving communications from a second wireless node. Another wireless node may then, during a listen-before-talk (LBT) procedure, receive one of the directional signals, and terminate a correspondence communication session to avoid potential interference. Additionally or alternatively, a wireless node may listen in directions in a sweeping receive pattern while transmitting to a second wireless node. While listening, the wireless node may detect a transmission from a third wireless node in a particular direction. The wireless node may then accordingly refrain from transmitting in that direction to avoid potential interference.

Abstract: Methods, systems, and apparatuses are described for wireless communication at a base station. The base station may transmit a control message to a set of user equipments (UEs) using a directional transmission having a first beamform width. The base station may exchange, according to the control message, data messages with a first UE of the set of UEs using a directional transmission having a second beamform width. The second beamform width may be different from the first beamform width. The base station may exchange, according to the control message, data messages with a second UE of the set of UEs using a directional transmission having a third beamform width. The third beamform width may be different from the first beamform width, the second beamform width, or both.

Abstract: Aspects of the subject disclosure may include, a system that can transmit first wireless signals associated with communication signals, where the first wireless signals are directed via beam steering by an antenna array towards a wireless receiver. The system can transmit second wireless signals associated with the communication signals, where the second wireless signals are directed via the beam steering by the antenna array towards a transmission medium. The second wireless signals can induce electromagnetic waves at a physical interface of the transmission medium where the electromagnetic waves are associated with the communication signals. Other embodiments are disclosed.

Abstract: A wireless communication method and system, and a device: A first network device determines m first signals, a first spatial resource corresponding to each first signal, and a resource set to which each first spatial resource belongs, and sends a first signal on each corresponding first spatial resource; a second network device determines a response signal according to at least one received first signal, a first spatial resource corresponding to a first signal, and a resource set to which each first spatial resource belongs, and sends the response signal to the first network device; and the first network device sends a second signal to the second network device on k second spatial resources according to the received response signal. The embodiments of the present invention are used for wireless communication.

Abstract: An operation method of an unmanned aerial vehicle terminal. The unmanned aerial vehicle terminal generates a beam table by using first information on a plurality of beams transmitted by a first transmission point. The unmanned aerial vehicle terminal monitors whether conditions for beam switching are satisfied. The unmanned aerial vehicle terminal determines a target location based on the beam table when the conditions for the beam switching are satisfied. The unmanned aerial vehicle terminal moves to the target location. In addition, the unmanned aerial vehicle terminal updates the beam table depending on whether beam table update conditions are satisfied.

Abstract: A cellular communication system comprising a plurality of geographically spaced base stations (2) each of which comprises an antenna arrangement (4, 6, 8) per base station sector, each of which antenna arrangements has an antenna element for generating an array of narrow beams (10, 12, 14) covering the sector. Timeslots are simultaneously transmitted over each of the beams so as to generate successive sets of simultaneously transmitted timeslots per sector. The timeslots are each split into multiple orthogonal codes, for example Walsh codes. The communication system additionally comprising a scheduling device (31) for allocating for successive sets of timeslots common overhead channels, including a common pilot channel, which are allocated to the same sub-set of codes of each timeslot in the set. For successive sets of timeslots different data traffic is allocated to the same sub-set of codes of each timeslot in the set.

Abstract: A system, transceiver, computer programming product, and method of regulating transmission of a packet from a transceiver are provided. The method includes measuring, by the transceiver, the electronic magnetic radiation (EMR) for an allocated uplink (UL) grant at a transmission time interval (TTI), detecting, by the transceiver, if the measured EMR exceeds an EMR threshold; and regulating, at the transceiver, a transmission of the packet to reduce the EMR.

Abstract: A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. A first device includes: a receiving module, configured to receive a reference signal; a processing module, configured to measure the reference signal to obtain first channel information and second channel information; and a sending module, configured to send the first channel information and the second channel information. When generating the precoding matrix, the second device may perform weighted combination on M first vectors based on the weighted combination factor indicated by the received second channel information, instead of selecting only one eigenvector from a plurality of eigenvectors, so that the generated precoding matrix is more precise.

Abstract: In a first configuration, the apparatus may be a base station. The base station adjusts a periodicity for performing a beam sweep, sends information indicating the adjusted periodicity for performing a beam sweep, and performs the beam sweep at the adjusted periodicity. In a second configuration, the apparatus may be a UE. The UE receives information indicating a periodicity for performing a beam sweep from a base station, adjusts the periodicity for performing the beam sweep, and performs the beam sweep at the adjusted periodicity. For both configurations, the beam sweep is a plurality of transmissions of a beam in a plurality of different transmit spatial directions by one of the base station or the UE and a plurality of scans of the beam transmissions in a plurality of different scan spatial directions by an other of the one of the base station or the UE.

Abstract: In one embodiment, one or more computing systems of a multi-hop wireless network may access operational parameters for network nodes of the multi-hop wireless network, wherein the multi-hop wireless network comprises a plurality of network nodes, wherein each network node of the plurality of network nodes previously established one or more wireless connections with one or more corresponding network nodes, respectively, and wherein the operational parameters are based on operating data recorded during a period of steady-state operation of the multi-hop wireless network. The one or more computing systems may identify one or more responder nodes from the plurality of network nodes, wherein, for each identified responder node, one or more of the previously established wireless connections has been reset. The one or more computing systems may adjust operational settings for each responder node based on the accessed operational parameters.

Abstract: Embodiments of the present application provide an information transmission method, includes: receiving a beam indication signal on at least one beam that is sent by a base station, where the beam indication signal carries identity information of the beam on which the signal is located; determining the identity information of the at least one beam according to the beam indication signal on the at least one beam; determining, according to signal quality of the at least one beam, a primary beam used when the base station sends a downlink signal to the UE; and sending a first beam report message to the base station, where the first beam report message carries identity information of the primary beam.

Abstract: A converter assembly system and method down-converts high frequency communication signals. A first down-converter converts a first input signal to a first intermediate frequency (IF) signal, and a second down-converter converts a second input signal to a second IF signal. A switching assembly, operatively connected to the first and second down-converters, is configured to operate in a first state, in which the first IF signal is routed to a first output and the second IF signal is routed to a second output, and a second state, in which the first and second IF signals are combined into a composite intermediate signal and the composite intermediate signal is routed to at least one of the first output or the second output.

Abstract: Embodiments disclosed in the detailed description include supporting an add-on remote unit(s) (RU) in an optical fiber-based distributed antenna system (DAS) over existing optical fiber communications medium using radio frequency (RF) multiplexing. An existing DAS comprises at least one existing head end equipment (HEE) communicatively coupled to a plurality of existing RUs through an existing optical fiber communications medium. In aspects disclosed herein, an add-on RU is added to the existing DAS to support additional wireless communications. No new optical fibers are required to be deployed to support communications to the add-on RU in the existing DAS. Instead, the existing DAS is configured to support the add-on RU through the existing optical fiber communications medium using RF multiplexing. As a result, the add-on RU can be added to the existing optical fiber-based DAS without adding new optical fibers, thus leading to reduced service disruptions and deployment costs.

Abstract: Embodiments of an Evolved Node-B (eNB), User Equipment (UE) and methods for directional communication are generally described herein. The eNB may transmit, signal and an uplink scheduling block to a first UE according to a downlink transmission direction from the eNB to the first UE. The eNB 104 may further transmit, during the downlink sub-frame, a second beam refinement training signal and a downlink scheduling block to a second UE according to a downlink transmission direction from the eNB to the second UE. The uplink scheduling block may indicate scheduled uplink resources for a scheduled uplink transmission by the first UE and the downlink scheduling block may indicate scheduled downlink resources for a scheduled downlink transmission to the second UE.

Abstract: A wireless electronic device is provided. The wireless electronic device includes a first antenna and a first transceiver operatively coupled to the first antenna. The first transceiver is configured to receive and transmit data signals of a wireless communications network in a first frequency band. The first antenna is positioned to receive and transmit in a first direction. The wireless electronic device further includes a second antenna and a second transceiver operatively coupled to the second antenna and the first transceiver. The second transceiver is configured to receive and transmit data signals of the wireless communications network in a second frequency band. The second antenna is positioned to receive and transmit in a second direction being opposite to the first direction.

Abstract: There is provided mechanisms for shaping transmission beams in a wireless communications network. A method is performed by a network node. The method comprises acquiring channel measurements for wireless devices served by radio access network nodes using current beam forming parameters and being controlled by the network node. The method comprises determining, based on the channel measurements, desired beam forming parameters for shaping the transmission beams for at least one of the radio access network nodes. The method comprises initiating a gradual change of the current beam forming parameters to the desired beam forming parameters for shaping the transmission beams for the at least one of the radio access network nodes. The gradual change causes a need for network controlled handover to occur for at least some of the wireless devices served by the radio access network nodes.

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). According to various embodiments of the present disclosure, a method for operating a receiving device in a wireless communication system is provided. The method includes receiving a signal from a transmitting device which includes a plurality of transmit antennas, determining, based on the signal, multiple symbol vectors from symbol vectors possibly transmitted from a first transmit antenna and a second transmit antenna of the plurality of transmit antennas, and determining combinations of symbols transmitted from the first transmit antenna and the second transmit antenna by searching, for each of the multiple symbol vectors, at least one other symbol vector within a first preset distance from each of the multiple symbol vectors.

Abstract: For signal transmission, a pre-processing device performs a wavefront multiplexing (WVM) transform on M input streams corresponding to M orthogonal beams to generate N output streams using a weight matrix having M beam weight vectors (BWVs) associated with the M orthogonal beams. An antenna array having N elements transmits the N output streams to a plurality of receivers. For signal reception, an antenna array having N elements receives N input streams from a plurality of transmitters. A post-processing device performs a wavefront de-multiplexing (WVD) transform on the N input streams corresponding to M orthogonal beams to generate M output streams using a weight matrix having M beam weight vectors (BWVs) associated with the M orthogonal beams. M and N are positive integers and 1<M?N. The M BWVs are calculated using an optimization procedure based on performance constraints.

Abstract: The present disclosure relates to a wireless communication network node comprising at least one antenna arrangement, at least one radio arrangement, at least one power splitter arrangement and at least one power amplifier. Each antenna arrangement comprises at least one antenna device, and each power splitter arrangement comprises an input port and at least two output ports. Each of said at least one power amplifier is connected to a corresponding input port, and, for each power splitter arrangement, at least two output ports are connected to at least one corresponding antenna device via a corresponding multi-band filter for each of said output ports. Each multi-band filter is arranged for at least two frequency bands.

Abstract: A method of accessing a network by using a virtual UE scheme and a UE thereto are disclosed. The method includes performing a first random access procedure for a first DU group including one or more DUs with respect to a base station, performing a second random access procedure for a second DU group with respect to the base station, while maintaining a connection of the first DU group with the base station, and communicating with the base station via the first DU group and the second DU group.

Abstract: There is provided a node for operating in a wireless network, including: coarse-granularity scanning circuitry that performs a coarse-granularity scanning process to detect one or more donor nodes of the wireless network according to a first metric. Connection circuitry forms a connection to a selected donor node in the one or more donor nodes. The connection is broken as a consequence of the coarse-granularity scanning process being performed. Fine granularity scanning circuitry performs a fine granularity scanning process to determine a configuration in which a quality of the connection is improved according to a second metric. The connection is maintained during the fine granularity scanning process.

Abstract: A data communications system is disclosed for a vehicle having an exterior surface and an interior space, the data communications system including a support frame positionable within the interior space of the vehicle. A case is movable between an open and a closed position and includes a mounting system, the case mountable to the exterior surface of the vehicle via the mounting system. The system includes a power supply and a router device communicated with the power supply, one or more of the power supply and the router device mounted to the support frame. An antenna array is mounted within the case, the antenna array communicated with the router device, the antenna array including at least two cellular antennas.

Abstract: In a wireless communication terminal in a wireless communication system for performing a control not to transmit signals, or to transmit signals with a reduction in a transmission power by a part of radio resources for a downlink signal in a cell provided by a base station, the terminal receives control information in generating a report related to a measurement result of the cell provided by the base station, monitors a state of a radio link with an own cell, and performs measurement on reception of the downlink signal. If an instruction for restricting the measurement to a part of the radio resources is included in the control information from the base station after the radio link failure occurs, the terminal generates and transmits a radio link failure report including the measurement result in the radio resources as instructed when the radio link failure occurs.

Abstract: A method is provided for determining instantaneous polarization of multiple electromagnetic transmissions. A segmented aperture system determines a direction of arrival of a transmission based on port coordinates and the geometric relationship of the segments. The ports receive at least two orthogonal polarizations that characterize the incoming signals. Two angles are calculated by a simultaneous solution of two phase difference measurements to determine the direction of arrival. A mean direction of arrival solution is obtained by averaging solution estimates that are obtained by repeating the direction of arrival determination.

Abstract: An antenna directivity control parameter generating apparatus includes a memory that stores image processing data generated by image processing and a processor that calculates an antenna directivity control parameter for a base station based on the image processing data.

Abstract: The present invention relates to a method and a device for selecting and allocating a transmission beam index having a priority. The present invention, in this regard, relates to a method for transmission and reception by a base station in a wireless communication system capable of configuring a plurality of beams, the method comprising the steps of: transmitting a reference signal, using at least one transmission beam; receiving index information of the at least one transmission beam from a terminal; and scheduling a beam corresponding to one piece of information among the index information of the at least one transmission beam for the terminal, wherein the index information is the index information of the at least one transmission beam selected by the terminal on the basis of the priority pre-configured for the plurality of beams.

Abstract: A method for detecting the presence of one or more radioelectric transmitters in an environment, the method being implemented by a device including a computing unit and an antenna array including a plurality of antennas able to carry out acquisitions simultaneously from the environment in the form of acquisition signals during an acquisition time and to receive and to transmit simultaneously the acquisition signals in digital form to the computing unit.

Abstract: Embodiments disclose a multi-frequency transceiver and a base station. The multi-frequency transceiver is connected to an antenna, and includes: at least one transmit multiplexer, where each transmit multiplexer includes multiple transmit paths, and each transmit path is used to transmit one frequency band by using the antenna; and at least one receive multiplexer, where each receive multiplexer includes multiple receive paths, and each receive path is used to receive one frequency band by using the antenna.

Abstract: A method and a system for signaling and processing control information in a cloud cell environment are provided. According to an embodiment, in a cloud cell, a master Base Station (BS) coordinates with other BSs to determine resources available for use on communication links between a mobile station in the cloud cell and one or all the BSs during a scheduling interval. Based on the resources available, the master BS allocates cumulative resources associated with the BSs to the mobile station for the scheduling interval. Then, the master BS transmits resource allocation control information indicating the allocated cumulative resources to the mobile station over a communication link between the master BS and the mobile station. Upon receiving the resource allocation control information, the mobile station decodes the information and receives data packets from each of the BSs during the scheduling interval according to the decoded resource allocation control information.

Abstract: A communication system includes a transmission terminal and a reception terminal, and the transmission terminal transmits data to the reception terminal. The transmission terminal includes a storage unit that stores data and management information of the data, and a first communication unit that performs communication using a first radio method having non-directivity and a second radio method having directivity. The reception terminal includes a second communication unit that performs communication using the first radio method having non-directivity and the second radio method having directivity, and a selector that selects the data based on the management information. The first communication unit and the second communication unit communicate with each other using the first radio method having non-directivity when selecting the data to be transmitted, and communicates with each other using the second radio method having directivity when transmitting the selected data.

Abstract: The embodiments of the present invention disclose a data transmission method. A specific solution is as follows: A processor sends, by using a first resource block, a first MAC PDU that carries a first reservation indicator field used to instruct to reserve the first resource block; a receiver receives a second MAC PDU sent by using a second resource block by a set of second terminal devices, where the second MAC PDU carries a first resource feedback field used to indicate that the first resource block is successfully reserved; a processor determines, according to the first resource feedback field and that is sent by a second terminal device in the set of second terminal devices, that the first resource block is a resource block used to send a new MAC PDU; and the transmitter sends the new MAC PDU by using the first resource block.

Abstract: A head-mounted display (HMD) is wirelessly coupled to a console or a relay depending on the relative positions of the HMD, the console, and the relay. The HMD communicates wirelessly with the console using a beam that is oriented in a particular direction. As the position of the HMD changes, the quality of the communication link between the HMD and the console may degrade. In response to the degradation, the HMD forms a communication link with a relay, which operates as an intermediary between the HMD and the console. The relay communicates with the HMD over a dedicated communication channel that is isolated from the communication channel over which the relay communicates with the console.

Abstract: A wireless communication device may include processing modules and determine a hardware arrangement to facilitate performance for communication with a network. The hardware arrangement may include a first antenna or the first antenna and the second antenna, a first processing module and a second processing module, the first processing module including a single processing technique, the second processing module including first and second processing techniques. The first processing technique of the second processing module may be selected for the communication and adaptively selected to the second processing technique during the communication based on a cost.

Abstract: Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for cancelling self-interference in a full-duplex communication system is provided. The method comprises the steps of: cancelling cancellable self-interference components through an analog interference cancellation circuit, and estimating a channel state of an uplink channel and a channel state of a downlink channel on the basis of remaining residual self-interference components; estimating a channel capacity for each of possible beam combinations on the basis of the estimated uplink channel state and downlink channel state; selecting the beam combination having the largest channel capacity from among the possible beam combinations; and cancelling self-interference from a received signal on the basis of the selected beam combination.

Abstract: A base station and mobile station communicate using a multiple input multiple output (MIMO) communication. The base station includes a two dimensional (2D) antenna array comprising a number N of antenna elements configured in a 2D grid. The 2D antenna array is configured to communicate with at least one subscriber station. The base station also includes a controller configured to transmit N channel-state-information reference-signal (CSI-RS) antenna ports (APs) associated with each of the N antenna elements. The subscriber station includes an antenna array configured to communicate with at least one base station. The subscriber station also includes processing circuitry configured receives physical downlink shared channels (PDSCHs) from a 2D active antenna array at the at least one base station. The 2D active antenna array includes a number N antenna elements. The processing circuitry further configured to estimate a full CSI associated with the N antenna elements.