Abstract: A technique for transmitting data in a radio access network is described. As to a method aspect of the technique, the Quality of Service (QoS) requirements for the data to be transmitted are determined. The data is transmitted using an antenna array for beamforming. Both the beamforming and a transmit power (404) of the data transmission are controlled according to the QoS requirements and within an upper limit (406) for a radiant intensity (302) of the data transmission.

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: There is provided mechanisms for beamforming of beams. A method is performed by a radio transceiver device. The method comprises performing beamforming by switching between communicating in a first set of beam patterns and in a second set of beam patterns. The first set of beam patterns and the second set of beam patterns comprise equally many beams. Signals in the beams are communicated with a first set of other radio transceiver devices in the first set of beam patterns and with a second set of other radio transceiver devices in the second set of beam patterns. The first set of other radio transceiver devices and the second set of other radio transceiver devices at least partly overlaps.

Abstract: There are provided mechanisms for reporting channel coefficients to a wireless device. A method is performed by a network node. The method includes receiving reference signals from the wireless device. The method includes transmitting a first set of beam-formed reference signals. The first set of beam-formed reference signals reflects channel coefficients and is based on the received reference signals and the number of beams in the first set of beam-formed reference signals is less than the number of receive antennas in which the reference signals are received, thereby reporting the channel coefficients to the wireless device.

Abstract: Antenna switch diversity circuitry can include four switches. A first switch can be connectable to a first transmitter, a first receiver, and a second receiver. A second switch can be connectable to a second transmitter, a third receiver, and a fourth receiver. A third switch can be directly connected to the first switch, the second switch, a first antenna, and a second antenna. A fourth switch directly can be connected to the first switch, the second switch, a third antenna, and a fourth antenna. The first and second switches can be configured to be controlled by a control signal in a manner so as to prevent a signal from the first transmitter and a signal from the second transmitter from being conveyed through a same switch, which can reduce a production of an intermodulation distortion signal by the signal from the first transmitter and the signal from the second transmitter.

Abstract: In accordance with one or more embodiments, a communication device includes a dual-band antenna array configured to transmit first radio frequency (RF) signals to a remote device in an RF band and to transmit first millimeter wave (MMW) signals to the remote device in a MMW frequency band, wherein the MMW frequency band is above the RF band. A base transceiver station is configured to generate a consolidated steering matrix in accordance with the transmission of the first RF signals to the remote device in the RF band. A remote radio head is configured to convert the consolidated steering matrix to a converted steering matrix that facilitates the transmission of the first MMW signals to the remote device in the MMW frequency band, and further configured to generate the first MMW signals in accordance with the converted steering matrix.

Abstract: A positioning system (10) for determining location information of/for a mobile radio transmitter (1) comprises an antenna system (2) which includes a plurality of antennas (21) aimed at different directions and arranged on one common antenna carrier (20). The positioning system (10) comprises a receiver system (3) electrically connected to the antennas (21) and configured to receive via each of the antennas (21) a radio signal (7) transmitted by the mobile radio transmitter (1). The positioning system (10) further comprises a processing circuit (4) electrically connected to the receiver system (3) and configured to calculate the location information of/for the mobile radio transmitter (1) based on the radio signal received at each of the antennas (21). The location information includes at least angular direction of the mobile radio transmitter (1) with respect to the antenna system (2).

Abstract: A method is performed for beam training of a radio transceiver device comprising device comprises at least two antenna arrays. During the beam training, a first set of occurrences of a reference signal is received using all the antenna arrays and such that one respective occurrence of the reference signal is received in one single wide beam at each of all the antenna arrays. The method comprises receiving, during the beam training, a second set of occurrences of the reference signal using less than all antenna arrays and such that one respective occurrence of the reference signal is received in each respective narrow at each of the less than all antenna arrays. Which of the less than all antenna arrays to receive the second set of occurrences of the reference signal is determined based on evaluation of reception of the first set of occurrences of the reference signal at each of all the antenna arrays.

Abstract: A communication device for RF-based communication with another communication device comprises antenna circuitry configured to transmit and receive RF signals, and beamforming circuitry configured to perform beamforming and to carry out a beam training procedure for finding a beam for use in transmitting and/or receiving RF signals and/or for channel estimation. The beamforming training procedure comprises at least two stages during which training signals are transmitted using different beams, wherein first beams used in a first stage have a larger beam sector than second beams used in a second stage and wherein the second beams are selected by forming a virtual best sector based on an evaluation of a predetermined metric obtained for the first beams in the first stage.

Abstract: In order to shorten a waiting time until a user terminal receives a down signal transmitted from a base station apparatus and ensure that a transmission beam is transmitted to a direction towards where one or more user terminals are present, a base station for time-divisionally transmitting a down signal to multiple user terminals present in a cell concurrently with changing a transmission beam direction where the down signal is common to the multiple user terminals is provided and includes a wireless communicator configured to time-divisionally transmit the down signal concurrently with changing the transmission beam direction, an information storage configured to store transmission schedule information which specifies transmission timing of the transmission beam, and a controller configured to control, based on the transmission schedule information, the transmission beams when the base station transmits the down signal.

Abstract: An antenna overlay system includes antenna hardware, a communication link, and electronic circuitry disposed on a substrate. The communication link couples the electronic circuitry to the antenna hardware. During operation, the electronic circuitry in communication with the antenna hardware is operable to control transmission and reception of wireless signals in a wireless region. An adhesive layer disposed on a surface of the substrate couples the substrate to an object such as a window. In one arrangement, the window is a low-E glass windowpane that substantially attenuates wireless signals from being received by communication equipment in a building in which the windowpane is installed. The antenna overlay system provides enhanced RF signal reception and transmission.

Abstract: In a process of beam change, the base station transmits a beam change instruction to a user equipment to confirm a change from a current beam to another beam. The base station determines to change from a first beam to a second beam. The base station generates a beam change instruction to indicate the determination to change from the first beam to the second beam. The base station transmits, to a UE, the beam change instruction in a downlink control information (DCI). The base station determines whether or not the beam change instruction is detected by the UE.

Abstract: Techniques to adaptively support/enable a wireless network feature for certain wireless client devices without hampering the performance or connectivity of wireless client devices which do not support that wireless network feature. An access point or wireless network controller adaptively enables a wireless network feature without advertising support for the wireless network feature in a wireless network-standard compliant manner to allow one or more wireless clients that support the wireless network feature to use the wireless network feature when associated to the access point while enabling association of one or more wireless clients that do not support the wireless network feature.

Abstract: When a base station that does not support downlink beamforming is serving a UE and a guaranteed-bit-rate (GBR) bearer is established for the UE, the base station will detect the establishment of the GBR bearer for the UE and will responsively trigger handover of the UE to another base station selected based on the other base station supporting downlink beamforming. With this process, handing the UE over to a base station that supports downlink beamforming may thereby help to ensure successful transmission to the UE at the GBR associated with the bearer.

Abstract: A wireless communication device comprises: a transceiver being configured to measure a plurality of interference powers associated with a plurality of radio resources; and a processor being configured to determine, on the basis of the plurality of interference powers, conflicting radio resources of the wireless communication device. The transceiver is further configured to transmit data identifying the conflicting radio resources of the wireless communication device to at least one other wireless communication device and to receive data identifying conflicting radio resources of the at least one other wireless communication device.

Abstract: Systems and methods presented herein provide for improving communications when encountering aggressive communication systems. In one embodiment, a communication system comprises a wireless access point operable to link a first user equipment (UE) to a WiFi network via a contention based mode that directs the WAP to share radio frequency spectrum with other WAPs. The communication system also comprises a communication processor operable to query at least the first UE to determine aggressive radio frequency (RF) band activity by another communication system in range of the WAP, to determine that the aggressive RF band activity by the other communication system is pushing communication with the first UE via the WAP below a threshold level, and based on the determination, direct the WAP to switch to a contention free mode to communicate with the first UE in contention free mode.

Abstract: The disclosure provides a base station side device and method for wireless communication, and a UE side device and method for wireless communication. The base station side device for wireless communication includes: a determination unit configured to dynamically determine, on the basis of a transmission characteristic relevant to a user equipment, a reference signal to be used by the user equipment from a reference signal set available for a base station; and a generation unit configured to generate reference signal configuration information for the user equipment, wherein the configuration information includes an indication for indicating the sequence number of the reference signal to be used by the user equipment, and the sequence number of the reference signal is relevant to the sequence number of an antenna port.

Abstract: A system and method includes selecting an optimal geographic location of a WLAN AP via execution of code instructions of a WLAN AP base transceiver location optimization system to determine a first weighted potential interference between the WLAN AP and each of a plurality of neighboring base transceiver systems, associated with a WLAN AP operating at a first geographic location and determine a second weighted potential interference between the WLAN AP and each of a plurality of neighboring base transceiver systems, associated with the WLAN AP operating at a second geographic location that is a candidate optimal geographic location, wherein the determination of the first or second weighted potential interference is based on a spatial-temporal radio frequency profile for a plurality of wireless links operating on the WLAN AP and neighboring base transceiver systems, and if the second weighted potential interference is lesser than the first weighted potential interference, defining the second geographic locatio

Abstract: The present invention is designed to suitably mitigate the decrease in communication throughput even when type-II feedback is used. According to one aspect of the present invention, a user terminal has a control section that determines a beam pattern that shows a fixed set of beams, and determines at least one beam that is not included in the beam pattern; and a transmission section that transmits feedback information related to the beam pattern and the at least one beam that is determined.

Abstract: In one aspect, a method for a packet gateway node (PGW) is disclosed. The PGW being adapted for (a) communicating with at least a serving gateway node, SGW, (b) receiving and forwarding downlink data packets to a user entity, UE, and (c) communicating with a mobility management entity, MME. In one embodiment, the method comprises: the PGW, when receiving a downlink user plane data packet destined for the UE on a Packet Data Network, PDN, connection associated with a restarted SGW, determining if the PDN connection has not yet been relocated to a new SGW, and, if so, selecting at least one SGW from a set of SGWs including the restarted SGW or another SGW and transmitting a control plane signal to at least one of the selected SGWs, the control plane signal identifying at least the UE.

Abstract: A method for controlling an antenna array is provided, which includes following steps. Associations with a plurality of mobile devices are established, and at least one characteristic parameter table corresponding to the mobile devices is generated. When a plurality of transmission request signals are received simultaneously and the mobile devices are divided into a user group, a multi-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and a plurality of data streams corresponding to the mobile devices are transmitted simultaneously through the antenna array. When the transmission request signals are received simultaneously and the mobile devices are not divided into the user group, a single-user antenna index of the antenna array is generated based on the at least one characteristic parameter table, and the data streams corresponding to the mobile devices are transmitted one-by-one through the antenna array.

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: A method and apparatus may be used in multi-AP and multi-wireless transmit/receive unit joint transmissions. The apparatus may be configured to transmit a joint transmission request on a first medium, and receive a joint transmission response on the first medium. In response, the apparatus my perform a joint transmission negotiation on a second medium and transmit data on the second medium based on the joint transmission negotiation. The apparatus may be configured to perform coordinated sectorized or beamformed transmissions through access point (AP)/PCP negotiations. The apparatus may provide an indication of support for joint transmission and coordinated sectorized or beamformed transmissions. The method and apparatus may also implement multi-AP/WTRU request-to-send (RTS)/clear-to-send (CTS) procedures. The apparatus may be configured to perform coordinated sectorized or beamforming grouping.

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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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 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: 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: 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: 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: 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 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 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.