Abstract: A transmission method includes generating a first precoded signal and a second precoded signal by performing a precoding process on a first baseband signal and a second baseband signal, outputting a third signal by inserting a pilot signal into the first precoded signal, outputting a fourth signal by applying a first phase change to the second precoded signal, outputting a fifth signal by inserting a pilot signal into the fourth signal, and outputting a sixth signal by applying a second phase change to the fifth signal.

Abstract: A radio-frequency circuit includes: a first transfer circuit that outputs a B1 or B3 first transmission signal amplified by a first power amplifier from a first input/output terminal; a second transfer circuit that outputs an n77 or n79 second transmission signal amplified by a second power amplifier from a second input/output terminal; and a switch. When a B1 first transmission signal and an n77 second transmission signal are simultaneously transmitted, the switch connects the first transfer circuit to a first antenna and connects the second transfer circuit to a second antenna since intermodulation distortion IMD2 overlaps with B1. When a B3 first transmission signal and an n79 second transmission signal are simultaneously transmitted, the switch connects both of the first transfer circuit and the second transfer circuit to the first antenna since intermodulation distortion IMD2 does not overlap with B3.

Abstract: A method of operating a wireless communication apparatus including an antenna array including a plurality of sub-arrays includes sweeping a receiving beam formed in each of the sub-arrays such that the receiving beam has a plurality of receiving beam patterns at a respective plurality of sweeping positions, and receiving a signal through the antenna array at each of the sweeping positions, generating base channel matrix information including channel matrices corresponding to the receiving beam patterns for each of the sub-arrays, based on the signal, performing a digital sweeping operation on at least one group combination, which is determined using the base channel matrix information, and generating supplemental channel matrix information, and selecting a receiving beam pattern of the antenna array using the base channel matrix information and the supplemental channel matrix information.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, a report indicating that a cooperative reception group including the UE and one or more other UEs connected to the UE over an out-of-band link supports one or more downlink transmit beamforming techniques. The UE may determine, based at least in part on the one or more downlink transmit beamforming techniques supported by the cooperative reception group, a downlink transmit precoder associated with relaxed beamforming nulling. The UE may decode a downlink transmission received from the base station based at least in part on the downlink transmit precoder and one or more decoded bits received from the one or more other UEs in the cooperative reception group. Numerous other aspects are provided.

Abstract: A sector level sweep method and apparatus are provided. A local end generates a first sector sweep packet at the local end sector sweep stage, and the local end sends the first sector sweep packet to a peer end by using a first beam. A quantity of bytes of the first sector sweep packet is not greater than 27, the first sector sweep packet includes beam indication information of the first beam, the beam indication information includes antenna identification information of the beam, and a maximum quantity of antennas indicated by the antenna identification information is at least 8.

Abstract: Certain aspects of the present disclosure relate to quasi co-location assumptions for aperiodic channel state information (CSI) reference signals (RS) in communications systems operating according to NR techniques. An exemplary method that may be performed by a UE includes determining a quasi-co-location (QCL) relationship of an aperiodic channel state information (CSI) reference signal (CSI-RS) to a physical channel and processing the aperiodic CSI-RS according to the determined QCL relationship.

Abstract: Facilitating generic reciprocity-based channel state information acquisition frameworks for advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise determining first uplink channel state information for a first mobile device based on first downlink channel state information received from the first mobile device. The first mobile device can be from a group of mobile devices in a wireless communications network. The operations can also comprise training a model on a difference between the first downlink channel state information and the first uplink channel state information to a defined level of confidence. Further, the operations can comprise employing the model to determine, without receipt of second downlink channel state information from a second mobile device of the group of mobile devices, second uplink channel state information for the second mobile device.

Abstract: This application describes a data transmission method, a terminal device, and a network device. The method may include determining, by a terminal device, a reporting type of channel state information (CSI), where the reporting type is used to indicate a relationship between CSI of a beam that is currently reported by the terminal device and CSI of a beam that is previously reported by the terminal device in a current reporting period. The method may also include sending, by the terminal device, CSI of N beams to a network device based on a reporting type and a codebook parameter, where the codebook parameter is used to indicate a quantity N of the currently reported beams, and N is an integer greater than or equal to 1. According to the data transmission method, the terminal device, and the network device described in the embodiments of this application, CSI reporting flexibility can be improved, thereby improving system performance.

Abstract: An electronic device and a communication method can provide multiple transmitting beams based on priori information. An electronic device for a first communication device side including: processing circuitry configured to: determine, based on priori information, a transmitting order for a plurality of transmitting beams of the first communication device in beam sweeping to be performed on a communication from the first communication device to a second communication device; and control to use the plurality of transmitting beams in the beam sweeping according to the determined transmitting order.

Abstract: A method for Beam Failure Recovery (BFR) performed by a User Equipment (UE) includes the UE receiving, from a Base Station (BS), a first configuration indicating a first Reference Signal (RS) associated with a first cell of the BS, determining whether a first beam failure event is detected on the first cell by assessing a first radio link quality based on the first RS, triggering a first BFR procedure for the first cell when the first beam failure event is detected on the first cell, and when the first BFR procedure is triggered and not cancelled, performing operations including: determining whether the UE is allocated with an Uplink (UL) resource that is available for transmitting a BFR report, where the UL resource is a Physical Uplink Shared Channel (PUSCH) resource, when the UE is allocated with the UL resource, generating, in response to the first BFR procedure, the BFR report, and transmitting, on the UL resource, the BFR report to the BS, and when the UE is not allocated with the UL resource, triggerin

Abstract: Relaying data comprises assigning a first network address to a relay wireless device attached to an access node, wherein the relay wireless device is communicatively coupled to one or more wireless access points (WAPs); and instructing the relay wireless device to correspondingly assign one or more additional network addresses to the one or more WAPs, wherein the relay wireless device is configured to relay data between the access node and one or more end-user wireless devices attached to any of the one or more WAPs. Port NAT and DHCP are leveraged at the relay UE according to embodiments described herein.

Abstract: A playset comprises a near field communication extending system. The near field communication extending comprises a main antenna and a plurality of extending antennas. The main antenna is positioned at a first location of the playset and configured to wirelessly communicate to a near field communication device of a mobile device. The plurality of extending antennas is positioned at a plurality of different locations in an interior of the playset. Each of the plurality of extending antennas is connectable to the main antenna via a plurality of connection elements. The playset further comprises an antenna switching mechanism coupled to the plurality of extending antennas via a plurality of connection elements. The antenna switching mechanism is configured to switchably couple the main antenna with each of the plurality of extending antennas.

Abstract: Disclosed is an interference canceller capable of generating a cancellation signal for reducing cross port alien near-end (XPAN) crosstalk of a reception signal received by a receiver of a network device.

Abstract: Methods and apparatus are described. A wireless transmit/receive unit (WTRU) includes a transceiver and a processor operatively coupled to the transceiver. The transceiver and the processor establish a connection with a first wireless network node and a second wireless network node. The transceiver and the processor also receive power configurations and timing advances from the first wireless network node independently of the second wireless network node. The transceiver and the processor also simultaneously receive downlink signals from both the first wireless network node and the second wireless network node. The downlink signals are independently scheduled by a scheduler of the first wireless network node and a scheduler of the second wireless network node.

Abstract: A radio relay apparatus, which can monitor a status of a radio relay apparatus for realizing a three-dimensional network, without providing a dedicated line, is provided. The radio relay apparatus can fly and move in an upper airspace, and comprises a first antenna for transmitting and receiving a radio signal of a feeder link to and from a gateway station on a communication network side provided on the ground or on the sea, a second antenna for transmitting and receiving a radio signal of a service link to and from a terminal apparatus, a relay processing section for relaying the radio signal of the feeder link and the radio signal of the service link, which is provided between the first antenna and the second antenna, an information acquisition section for acquiring monitoring information on the status of the radio relay apparatus, and an information communication section for transmitting the monitoring information to the gateway station via the feeder link.

Abstract: A wireless communication system beamforms an uplink from an airborne transceiver to a terrestrial transceiver. The airborne transceiver comprises antennas that have an antenna type an aperture beamwidth. The airborne transceiver transfers a transceiver ID to the terrestrial transceiver. The terrestrial transceiver initiates aerial uplink beamforming for the antenna type and the aperture beamwidth based on the airborne transceiver ID. The terrestrial transceiver determines uplink beamforming metrics and altitude for the airborne transmitter. The terrestrial transceiver generates an uplink beamforming instruction and an uplink power instruction for the antenna type and the aperture beamwidth of the airborne transceiver based on the uplink beamforming metrics and altitude. The terrestrial transceiver transfers the uplink beamforming instruction and the uplink power instruction to the airborne transceiver.

Abstract: A communication system has a phased antenna array configured to communicate via a plurality of beams with a wireless device, such as user equipment (e.g., a smart phone). The plurality of beams define a field of view of the phased antenna array, the field of view having a plurality of cells and each of the plurality of beams is associated with one of the plurality of cells within the field of view. A processing device detects the wireless device within the field of view and determines a coarse geographic location of the wireless device within the field of view of the wireless device when the wireless device is within the field of view, or within a cell. The system further determines a fine geographic location for the wireless device based on frequency offset (due to Doppler) and signal flight time.

Abstract: The disclosed technology relates to systems and methods for tasking satellite constellations. A method is disclosed herein for receiving, from a resource database of a satellite control system, knowledge data corresponding to a plurality of components associated with a satellite constellation communications system. The plurality of components can include one or more satellites associated with a constellation. The method includes processing the knowledge data according at least one received mission objective. Processing the knowledge data can include determining a status of at least one satellite in the constellation.

Abstract: An improved procedure and associated hardware to allow a satellite to switch antenna coverages according to predefined repetitive sequences and to align switching of the antenna sequence with ground data sequence switching. The principle of synchronisation of the sequence switching is based on the anticipation of the exact time at which change in beam hopping sequence occurs at the satellite, such that a change to a beam hopping sequence can be reflected in ground data sequence switching without losing connectivity between the satellite and ground segment.

Abstract: The embodiments of the present invention disclose a call processing method and device. The call processing method comprises: sending, by a repeater of the first site, a first call establishment request to a repeater of the second site according to a call request initiated by a first terminal, the first call establishment request comprising an identification of the second terminal; determining, by the repeater of the first site, whether a second call establishment request is received before a call establishment response sent by the repeater of the second site is received, the second call establishment request being sent by the repeater of the second site according to a call request initiated by the second terminal; and if yes, sending, by the repeater of the first site, a call collision notification to the first terminal to notify the first terminal to delay the call.

Abstract: A user equipment (UE) is configured to receive a downlink physical control channel including a transmission parameter in a first time slot, a number of bits sent over the downlink physical control channel is based on fields of control information to be sent to the UE, wherein the first time slot also includes a downlink physical shared channel. Further, the UE is configured to transmit an uplink physical control channel in a second time slot based on the transmission parameter, wherein a plurality of UEs transmit uplink physical control channels in the second time slot.

Abstract: Dynamic error-quantizer tuning systems and methods prevent misconvergence to local minima by using a dynamic quantizer circuit that controls reference voltages of three or more comparators that are independently adjusted to modify the transfer function of the dynamic quantizer circuit. A weighted sum of the comparator outputs is subtracted from the input to form an error signal in a control loop. The ratio of the reference voltages is chosen to reduce or eliminate local minima during a convergence of the control loop and is set to values that minimize a mean squared error signal with respect to discrete modulation states of the input after the convergence of the control loop is complete.

Abstract: A method for setting a pluggable optical transceiver, includes: amplifying, with an amplifier, an electrical signal being input to the pluggable optical transceiver from an external device to which the pluggable optical transceiver is mounted, and outputting the amplified electrical signal as a drive signal of an optical modulator; modulating light input from a light source with the optical modulator, based on the drive signal, and outputting the modulated light; monitoring amplitude of the drive signal; and executing a control sequence being set in advance for at least one of the amplifier and the optical modulator when detecting that amplitude of the drive signal exceeds a reference value being set in advance.

Abstract: A display apparatus is disclosed. The display apparatus includes: an optical communication interface configured to communicate with an electronic device through an optical cable; and a processor for, when an optical signal including at least one signal among an image signal and a sound signal is received from the electronic device through the optical communication interface, measuring a strength of the received optical signal, and controlling an operation of the display apparatus related to a state of the optical cable, on the basis of the measured strength of the optical signal.

Abstract: The present invention is directed to communication systems and methods. According to an embodiment, a receiving optical transceiver determines signal quality for signals received from a transmitting optical transceiver. Information related to the signal quality is embedded into back-channel data and sent to the transmitting optical transceiver. The transmitting optical transceiver detects the presence of the back-channel data and adjusts one or more of its operating parameters based on the back-channel data. There are other embodiments as well.

Abstract: A method and system for regenerating free space optical (FSO) signal pulses over free space optical (FSO) links. The FSO signal pulses are received over a first FSO link by a receiver telescope. The FSO signal pulses are split into a first part and a second part. The first part of the FSO signal pulses is converted to an electrical signal. The electrical signal is low pass filtered, amplified, and inverted to generate a negative electric voltage. The amplitude of the second part of the FSO signal pulses is attenuated by an optical absorber based on the negative electric voltage, thus regenerating the FSO signal pulses. The regenerated FSO signal pulses are amplified and bandpass filtered. The amplified and filtered regenerated FSO signal pulses are transmitted on a second FSO link.

Abstract: A light fixture includes a housing defining a peripheral wall around a reference axis and being provided with a base defining a light emission window. The light fixture further includes a photoreceiver mounted on the base and configured to receive a light beam from the remote terminal carrying a data signal, called the uplink signal, a lighting module arranged in the housing and configured to emit a light beam carrying a data signal, called the downlink signal, through the window and a module for processing data signals according to at least one communication protocol of the network. The light fixture includes a printed circuit board, called the processing board, extending transversely inside the housing and remote from the base, on which the processing module is mounted.

Abstract: An optical communication access point comprises: an optical communication channel for allowing wireless light communication with a remote device, and a memory for storing content, wherein the content in the memory is accessible by the remote device via the wireless light communication link.

Abstract: A baseband processing unit includes a baseband processor configured to receive a plurality of component carriers of a radio access technology wireless service, and a delta-sigma digitization interface configured to digitize at least one carrier signal of the plurality of component carriers into a digitized bit stream, for transport over a transport medium, by (i) oversampling the at least one carrier signal, (ii) quantizing the oversampled carrier signal into the digitized bit stream using two or fewer quantization bits.

Abstract: The various embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel comprising a multi-core fiber, the data being carried by optical signals, the optical signals propagating along the multi-core fiber according to two or more cores, the multi-core fiber being associated with fiber parameters and misalignment losses values, at least one scrambling device being arranged in the optical fiber transmission channel for scrambling the two or more cores according to a scrambling function, wherein the optical fiber transmission channel comprises a system configuration device configured to determine a core dependent loss value depending on the fiber parameters, at least one misalignment loss, a number of the at least one scrambling device, and the scrambling function.

Abstract: A system has a plurality of non-linear circuit stages and an intervening linear circuit stage. An input signal is provided to a first non-linear circuit stage, and from the first non-linear circuit stage, to the linear circuit stage. The first non-linear circuit stage applies a second-order distortion to the input signal and provides the resulting signal to the linear circuit stage. The resulting signal that is output from the linear circuit stage is inverted with respect to the input signal and suitably linearly processed (attenuated or amplified). This signal is then provided to a second non-linear circuit that applies a second-order distortion and outputs a signal that has an overall reduction in second-order distortion.

Abstract: A method, system and apparatus for optimizing parameters between two optical coherent transceivers connected via an optical link, including determining performance of a second optical receiver; wherein the second optical transceiver uses a set of parameters; and inputting information into a side channel communication between a first optical transceiver and the second optical transceiver to update the set of parameters for the second transceiver.

Abstract: A microcomputer 202 is coupled to a SFP module 101 via control signal lines 112 to 114. The microcomputer 202 monitors control signals transmitted on the control signal lines 112 to 114, and acquires, based on the result of monitoring, the condition of the SFP module 101 from a ROM 151 at a timing when a protocol chip 102 is not accessing the SFP module 101.

Abstract: In order to reduce the number of wires between blades, this blade device is provided with: a control blade for sending first information, which is at least one of control information for controlling a blade to be controlled and monitor information for monitoring the blade to be controlled, to the blade to be controlled by wireless communication; and the blade to be controlled which performs a process in accordance with the first information that has been received.

Abstract: A high peak bandwidth I/O channel embedded within a multilayer surface interface that forms the bus circuitry electrically interfacing the output or input port on a first semiconductor die with the input or output port on a second semiconductor die.

Abstract: An apparatus and a method for transmission system are disclosed. According to an embodiment, a voltage standing wave ratio (VSWR) detection apparatus, comprising: a signal processing circuit with 1-bit analog-to-digital converter (ADC) functionality configured to receive a forward coupled signal in a transmission line of an antenna system, receive a reverse coupled signal in the transmission line of the antenna system, detect the forward coupled signal and the reverse coupled signal, convert the forward detected signal and the reverse detected signal to an analog voltage signal mapped to a return loss value, convert by the 1-bit ADC the analog voltage signal into a digital pulse train and output the digital pulse train to a digital interface of a processing device or unit.

Abstract: A method, apparatus and system for per-channel MER calibration and determination on a multi-channel receiver.

Abstract: The present invention provides a method for performing beam measurement in a wireless communication system, and a device for the method.

Abstract: This application provides a measurement method, a terminal device, and an access network device. The measurement method includes: measuring, by a terminal device, signal quality of a plurality of beams, wherein the signal quality of the plurality of beams is obtained by using synchronization signal blocks, the signal quality of the plurality of beams comprises signal quality of a same beam at different moments, and the plurality of beams belong to one cell; and obtaining, by the terminal device, signal quality of the cell based on the signal quality of the plurality of beams. In this way, cell measurement based on a synchronization signal is implemented, and the signal quality of the cell obtained based on the signal quality of the plurality of beams at the different moments is more accurate.

Abstract: A method, a computer-readable medium, and an apparatus are provided for wireless communication at a user equipment. The UE receives an indication from a base station that a medium access control-control element (MAC-CE) activation of a pathloss reference signal is enabled. The UE receives a MAC-CE activating the pathloss reference signal. The UE determines the pathloss reference signal based on the MAC-CE and the indication that indicates that the MAC-CE activation of the pathloss reference signal is enabled. Then, the UE estimates a downlink pathloss based on the pathloss reference signal that is activated by the MAC-CE.

Abstract: Described herein is an implantable medical device (IMD) that wirelessly communicates another IMD, and methods for use therewith. Such a method can include receiving one or more implant-to-implant (i2i) communication signals from the other IMD using a communication receiver of the IMD, measuring a strength of at least one of the one or more received i2i communication signals or a surrogate thereof, and updating a strength metric based on the measured strength or surrogate thereof. The method further includes determining, based on the updated strength metric, whether to increase, decrease, or maintain the sensitivity of the communication receiver of the IMD, and responding accordingly such that the sensitivity is sometimes increased, sometimes decreased, and sometimes maintained. The method can also include selectively causing a transmitter of the IMD to transmit an i2i communication signal to the other IMD requesting that the other IMD adjust its transmission strength.

Abstract: A receiver is configured to detect, at a communication interface, a received signal that suffers from degradations incurred over a communication channel. The receiver applies an adaptive filter to a series of received blocks of a digital representation of the received signal, thereby generating respective filtered blocks, where each received block represents 2N frequency bins, and where N is a positive integer. The receiver calculates coefficients for use by the adaptive filter on a jth received block as a function of (i) error estimates associated with an (j?D?1)th filtered block, where D is a positive integer representing a number of blocks, and where j is a positive integer greater than (D?1); and (ii) an inverse of an approximate covariance matrix associated with the (j?D?1)th received block, where the approximate covariance matrix is a diagonal matrix of size L×L, and where L is a positive integer lower than 2N.

Abstract: A method, in a user equipment, for performing one or more radio measurements is provided. The method comprises determining that the user equipment is to perform one or more radio measurements using a first set of reference time resources on at least a first cell operating on a first carrier frequency. The method further comprises adaptively performing reference signal carrier-based switching for transmitting a reference signal on a second cell operating on a second carrier frequency based on the determined first set of reference time resources. A method in a network node is also provided. The method comprises determining that a user equipment is to perform one or more radio measurements using a first set of reference time resources on at least a first cell operating on a first carrier frequency.

Abstract: A generalized frequency division multiplexing method with multiple-input multiple-output and flexible index modulation, which enables to have the energy efficiency provided by space and frequency index modulation systems with generalized frequency division multiplexing (GFDM) without complicating the transmitter and receiver structure and provide for the efficient use of frequency resources, increase in spectral efficiency, minimum complexity and increase in energy efficiency.

Abstract: Techniques for emulating a time division multiplexed (TDM) circuit using a packet switched network are described. First and second packet nodes are installed in a communication network. The first TDM node and second TDM node form a first span in the TDM circuit. First and second fiber connections are disconnected from the first and second TDM nodes, and connected to the first and second packet nodes. A portion of TDM data transmission across the first span is emulated using a packet connection formed by the first packet node and the second packet node. The TDM data transmission includes transport overhead data, and the packet connection emulates the transport overhead data.

Abstract: A method for transporting Ethernet frame packets assembled from a constant bit rate (CBR) client stream from an ingress network node to an egress network node, each Ethernet frame packet including a payload region having a number of bytes of CBR client data from the CBR client stream determined by a client rate value of the CBR client stream. The method including synchronizing a reference clock signal and a ToD in the ingress network node to a packet-based time distribution mechanism, independently synchronizing a reference clock signal and a ToD in the egress network node to the packet-based time distribution mechanism, for an Ethernet frame packet assembling a presentation time packet including a sequence number and a presentation ToD for the Ethernet frame packet, and transmitting the Ethernet frame packets and the presentation time packet to the egress network node over the packet transport network.

Abstract: Embodiments disclosed herein provide techniques to selectively distribute Precision Time Protocol (PTP) data in a network. The network can include multiple different network devices (e.g., switches) connected to form a network architecture (e.g., a spine/leaf architecture). Rather than distributing the PTP data (e.g., PTP timestamps) through all the network devices in order to synchronize local clocks to a global, master clock, the embodiments herein describe an out-of-band distribution network which selectively distributes the PTP data to select network devices in the network.

Abstract: An example system includes a hub transceiver and a plurality of edge transceivers. Each of the edge transceivers has one of several types of configurations for communicating with an optical communications network. Each type of configuration is associated with a different responsive optical subcarrier assignment protocol. The hub transceiver is operable to determine a plurality of optical subcarriers available for assignment by the hub transceiver to the plurality of the edge transceivers for use in communicating over the optical communications network, and assign, to each of the edge transceivers, a respective subset of the optical subcarriers. Assignment includes, determining that each of the edge transceivers has a particular type of configuration, and assigning a respective subset of the optical subcarriers to the edge transceiver according to the optical subcarrier assignment protocol associated with the that type of configuration.

Abstract: An optical network is provided that includes at least one strand of a plurality of strands of optical fiber optically connected to a first fiber distribution hub and an access terminal. The at least one strand optically is also connected to a second fiber distribution hub and the access terminal. The at least one strand thus provides a full duplex optical path in a first direction from the first fiber distribution hub to the access terminal and in a second direction from the second fiber distribution hub to the access terminal.

Abstract: A semiconductor device includes a first processor configured to generate a first error check code of a first data and an audio circuitry. The audio circuitry is configured to receive the first data, receive a second data, generate a second error check code of the first data, and generate a modulation signal based on the first and second data. The first processor may determine whether the first and second error check codes are identical to each other. The first processor may control the audio circuitry to control the generation of the modulation signal based on at least the first data, in response to a determination that the first and second error check codes are identical to each other.