Abstract: Embodiments of the present disclosure relate to sequential decoding of moderate length low-density parity-check (LDPC) codes via reinforcement learning (RL). The sequential decoding scheme is modeled as a Markov decision process (MDP), and an optimized cluster scheduling policy is subsequently obtained via RL. A software agent is trained to schedule all check nodes (CNs) in a cluster, and all clusters in every iteration. A new RL state space model is provided that enables the RL-based decoder to be suitable for longer LDPC codes.

Abstract: A data storage device with partial speed changes to improve in-order data transfer. Rather than determining an ECC decoder on a first available decoder basis, the ECC decoder may be based on the ECC decoder level. A memory device will have at least one FMU that has a syndrome weight (SW). The disclosure proposes assigning FMU's based on the SW rate. At the time the command is read, the data storage device determines which level of decoder will be assigned to the FMU. The determination will then be checked according to different system environment parameters to maintain performance or reduce power consumption. The arrangement allows a more flexible system design that can adapt according to the current system status.

Abstract: A system and methods for multi-type data compression or decompression with a virtual management layer, comprising. It incorporates a virtual management layer to organize incoming data types and select a compression or decompression system that utilizes a technique best suited for a particular data type. Associated data sets may be flagged prior to compression or decompression so that associated types may be preserved together after the compression or decompression process is complete. This approach allows each data type to be compressed or decompressed using a technique that is the most efficient for a particular data type. Additionally, the approach allows all information associated with a particular data set to be compressed or decompressed in some way.

Abstract: Compressing and restoring data using a multi-level autoencoder and a correlation network. The multi-level autoencoder compresses (in the encoder section) and decompresses (in the decoder section) data streams, and a separate correlation network trained on groups of input data sets restores lost data by leveraging correlations between the data sets.

Abstract: A configurable antenna for a software defined radio including a first antenna unit having a first antenna element for receiving a first electromagnetic signal in a first frequency band wherein the first frequency band corresponds to a first mode of operation of a software defined radio, an interface unit having a first connector to couple the first electromagnetic signal from the first antenna unit and a second connector to couple the first electromagnetic signal to the software defined radio, an enclosure configured to receive the interface unit within an internal cavity, and a retention bracket configured to mechanically retain the interface unit within the enclosure, the retention bracket having at least one hole for allowing the first connector to conductively contact the antenna unit.

Abstract: A duplexer may be used to isolate a transmitter and a receiver that share a common antenna. By using impedance gradients to provide impedances that cause balance-unbalance transformers (balun) of the duplexer to cut-off access to the common antenna rather than duplicate the antenna impedance, the duplexer is balanced. Such cut-offs may have a lower insertion loss than a duplexer that merely duplicates the antenna impedance to separate the differential signals of the receiver and transmitter from the common mode signal.

Abstract: A switching circuit comprises a first filter, a second filter and a plurality of switches. The first filter is configured to filter a first frequency band, a second frequency band that is adjacent to the first frequency band and a gap band between the first frequency band and the second frequency band. The second filter is configured to filter the second frequency band. The plurality of switches is configured to route signals from an antenna through one of the first filter and second filter.

Abstract: An antenna structure includes a housing, a first feed source, a second feed source, and a resonance circuit. The housing includes a first and a second radiator spaced to each other and grounded. The first feed source feeds current into the first radiator to activate a first mode, a second mode, and a third mode to generate radiation signals in a first frequency band, a second frequency band, and a third frequency band. The second feed source feeds current into the second radiator to activate a fourth mode to generate radiation signals in a fourth frequency band. The resonance circuit adjusts a radiation frequency band of the second radiator according to an impedance of the resonance circuit. The first radiator adjusts the third mode according to the radiation frequency band of the second radiator. A wireless communication device employing the antenna structure is also provided.

Abstract: Provided according to an embodiment is a vehicle-mounted antenna system. The antenna system may comprise: a circuit board; a heat sink configured to have an aperture region above the circuit board and be fixed to the circuit board through a fixing portion; and a coupling feed portion configured to be connected to the circuit board and radiate a signal to the aperture region.

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may provide for an adaptive digital post-distortion (DPoD) procedure and reporting of modulation and coding scheme (MCS) indices for communications between a user equipment (UE) and a network entity. The UE may select a kernel from a set of kernels indicated by the network entity for a DPoD procedure based on a target error vector magnitude (EVM). Additionally, or alternatively, the UE may determine a limitation for an MCS index for the network entity to use in communications with the UE based on a power limitation of the UE and an EVM associated with the MCS. The network entity and the UE may accordingly communicate using the MCS limitation requested by the UE and the determined DPoD kernel.

Abstract: A method improves antenna matching for a node, in particular a sensor apparatus and/or actuator apparatus, of a communications network. The node is capable of radio communication and has a radio module equipped with an antenna and a transmit path and/or receive path for radio signals to be emitted and/or received. The node has a power supply apparatus, which is preferably energy self-sufficient, in particular a battery. The antenna has an impedance and in the receive situation and/or in the transmit situation in the case of adjustable matchings, preferably by use of adjustable matching networks, the signal to noise ratio associated with each matching is estimated, and a matching is selected from the different matchings for the receive mode and/or the transmit mode.

Abstract: Subsystems and methods disclosed herein provide a reference signal to a power amplifier (PA) of an RF transmitter or transceiver. PTAT and CTAT signals and a temperature indication signal are produced. Based on the temperature indication signal, one of the PTAT or CTAT signals is selected to be used to produce one or more DAC reference signals. Using the selected one of the PTAT or CTAT signals, the one or more DAC reference signals are produced and used to bias the DAC. A multi-bit digital input signal is converted to an analog output signal using the DAC that is biased using the one or more DAC reference signals (produced using the selected one of the PTAT or CTAT signals). Further, the analog signal output by the DAC, or an amplified version thereof, is used as the reference signal that is provided to the PA of the RF transmitter or transceiver.

Abstract: Certain disclosed embodiments pertain to suppressing interference in a wireless communication system. For example, a method of suppressing interference can include receiving one, two, or more first signals including components from a plurality of sub-channels. Each of the first signals can be processed by a Finite Impulse Response filter adapted using an LMS update algorithm.

Abstract: A method that incorporates aspects of the subject disclosure may include, for example, obtaining, by a system comprising a processor, interference information associated with one or more physical resource blocks (PRBs) from each base station of a plurality of base stations. Further, the method can include determining, by the system, from the interference information a strategy for improving a PRB utilization of a first base station of the plurality of base stations. In addition, the method can include conveying, by the system, the strategy to at least one base station of the plurality of base stations. Other embodiments are disclosed.

Abstract: Examples described herein relate to management of concurrent audio streams from different sources. Portable playback devices, such as wearable wireless headphones and earbuds, as well as portable battery-powered speakers, may include multiple network interfaces for connection to different types of networks, such as an 802.11-compatible network interface for connection to wireless local area networks (e.g., Wi-Fi® networks) and an 802.15-compatible network interface for connection to a mobile device via a personal area network (Bluetooth®). Via such connections, the playback devices may receive two or more concurrent streams. By managing these streams according to playback policies, the portable playback devices may play the user's intended audio without necessarily requiring user input to explicitly select among the concurrent streams.

Abstract: A multifunctional mobile terminal stand and support device includes a base, a sound amplifying hole, and an atomization assembly. The base defines a first groove and a through hole, the base includes opposing first and second side surfaces, and the first groove is arranged on the first side surface. One end of the through hole is connected to the first groove, and other end of the through hole passes through the second side surface. The sound amplifying hole on one side of the base is connected to the first groove, and the second end of the sound amplifying hole passes through the base. The atomization assembly includes a mounting portion with second groove on the base and an atomizer, the atomizer is arranged in the second groove.

Abstract: A case having the appearance of 3D design elements embedded therein. The case generally comprises a back panel which incorporates a plurality of layers with impressions or recesses formed thereon. When aligned, the impressions create an optical illusion as if actual objects are embedded in the back panel of the case where no actual object is present. And a method of producing an optical illusion of embedded design elements in a case including the steps of forming a first panel with at least one first impression formed on a first side of the first panel, applying a reflective coating to the at least one first impression, forming a second panel, and joining the second panel to the first side of the first panel.

Abstract: This application provides an electronic device, including a first cover, a first shell, and a second shell. The first cover includes a first side portion, a middle portion, and a second side portion. The middle portion is connected between the first side portion and the second side portion. The first side portion and the second side portion are spaced apart from and opposite to each other to form an opening. The first side portion, the middle portion, and the second side portion are enclosed to form an accommodating cavity. The first shell and the second shell are both mounted in the accommodating cavity. The first shell and the second shell are matched to support the first cover. The solution of this application can resolve the problem of difficulty in assembling the shells with an exterior part.

Abstract: A radio frequency (RF) system is provided. The RF system includes an RF transceiver, an RF processing circuit, a transfer switch module, a first antenna, a second antenna, a third antenna, and a fourth antenna. The RF transceiver is coupled with the RF processing circuit. The RF processing circuit is coupled with the transfer switch module. The transfer switch module is coupled with the first antenna, the second antenna, the third antenna, and the fourth antenna. When the RF system operates in a non-standalone (NSA) mode, the first antenna is configured for transmission in a first low band (LB) and primary reception in the first LB, the second antenna is configured for transmission in a second LB and primary reception in the second LB, the third antenna is configured for diversity reception in the second LB, and the fourth antenna is configured for diversity reception in the first LB.

Abstract: Provided are a method and a device for hopping a frequency to perform uplink transmission. The method may include: receiving frequency hopping configuration information for a transport block transmitted using a plurality of slots; determining a frequency resource location to be hopped in the plurality of slots based on the frequency hopping configuration information; and transmitting the transport block through the plurality of slots according to the frequency resource location.

Abstract: Multiple transmit and receive channels in a communication transceiver may be dynamically configured using corresponding channel registers. The present disclosure proposes a profile-based direct memory access (PDMA) that can be used to transfer data from a memory and program specific profile registers in a randomly accessed addressing manner. PDMAs can offload the system processor from reprogramming many system registers based on external or internal events in a multi channels communication system. Furthermore, a PDMA based DMA controller is proposed to configure the frequency hopping registers of the transceiver based on PDMA.

Abstract: The present invention provides a fiber deployment method, storage medium, electronic device and system. The fiber deployment method includes the following steps: S10, traversing all single-mode fiber links and selecting a link for ultra-low loss fiber upgrade with the objective of minimizing the maximum number of frequency slots used in the whole network; and S20, when both an ultra-low loss fiber and a single-mode fiber satisfy the service demand, using preferentially spectrum resources in the single-mode fiber. The fiber deployment method of the present invention is simple and feasible. It allows a more efficient fiber upgrade strategy and more reasonable spectrum resource allocation and can make full use of the existing single-mode fibers in the elastic optical network, thereby allowing more efficient resource utilization.

Abstract: A power transient event detection system includes a first bank of photodetectors (PDs) located within a first node of an optical communication system. Each PD within the first bank of PDs has a different response time. The system further includes an output signal monitor that monitors signal output from each of the PDs in the first bank and that logs power transient event detection information. A transient event characterizer identifies, based on the logged event detection information, a subset of the PDs in the first bank that observed a power transient event, and determines a duration of the power transient event based on an amount of time that the signal output satisfies low signal criteria for at least one PD in the subset.

Abstract: An optical antenna apparatus for free-space optical communication, includes an input end having a lens positioned to receive one or more incoming optical signals, where the one or more incoming optical signals are received from one or more optical fibers connected at the input end. The optical antenna apparatus further includes an output end having a prism positioned at a defined distance from the lens. The one or more incoming optical signals of the one or more optical fibers passes through the lens and then the prism to form one or more free-space optical beams for a bi-directional free-space optical communication with a remote optical node.

Abstract: An apparatus and system having an optical integrated circuit (referred to herein as an OMTP) configured for power on during discovery and optically communicating with the OMTP reader for the purpose of extracting data.

Abstract: A curved light guide structure configured to guide a spectral region, includes: end faces disposed at two ends of the ring segment structure; a first main side extending between the end faces and a second main side opposite the first main side and extending between the end faces; at least a first pass region on the first main side, the first pass region being configured to receive and let pass an optical signal within the spectral region, the curved light guide structure being configured to guide the optical signal along an axial direction between the end faces; and at least a second pass region on the second main side that is configured to let pass and to emit at least part of the optical signal from the curved light guide structure.

Abstract: The present specification provides a method and apparatus, the method being for transmitting a beam, performed by the apparatus, in an optical wireless communication system, and comprising: generating a pulse laser signal; making the pulse laser signal to be incident on a metasurface, wherein the beam is generated on the basis that the pulse laser signal is incident on the metasurface; and transmitting the beam to a reception apparatus, wherein the metasurface is determined on the basis of ?_0, d, ??, and N, wherein ?_0 is a value of a center frequency, d is a value of a virtual antenna interval, ?? is a value of a frequency comb interval, and N is a value related to the number of frequency combs present within a gain bandwidth based on the center frequency.

Abstract: Disclosed herein is an optical transmitter for generating a vestigial sideband (VSB) optical signal. The optical transmitter includes: a modulator configured based on a photonic integrated chip (PIC); an optical fiber block; and a lensed thin film filter implemented between the modulator configured based on the PIC and the optical fiber block. The PIC includes at least one grating coupler, and the lensed thin film filter is disposed so that an angle of an optical signal emitted from a first grating coupler of the PIC coincides with an angle of incident (AOI) of the lensed thin film filter to design the first grating coupler and the lensed thin film filter.

Abstract: Provided is an optical receiver including: a heterodyne detection unit that converts, by heterodyne detection, a subcarrier multiplexed signal in which a plurality of optical signals transmitted from a plurality of optical transmitters are multiplexed, into an electrical signal in an intermediate frequency band; a filter unit that removes a carrier component from the electrical signal in the intermediate frequency band, generated by the conversion, to extract a subcarrier component; an analog-digital conversion unit that performs analog-digital conversion on a signal having the subcarrier component, extracted by the filter unit; and a digital signal processing unit that performs digital signal processing for each subcarrier on a digital signal generated by the analog-digital conversion performed by the analog-digital conversion unit.

Abstract: Example test methods and apparatus are described. One example method includes receiving an uplink radio frequency signal by a test device from a terminal device, where the uplink radio frequency signal is generated by superimposing at least two test signals, and each of the at least two test signal corresponds to one communication protocol. The test device extracts the at least two test signals from the uplink radio frequency signal. The test device separately tests the at least two test signals, and obtains an uplink test result of the terminal device.

Abstract: According to one embodiment, an electronic apparatus includes a processor configured to estimate positions of a plurality of wireless devices from a plurality of position candidates based on position candidate information indicating the plurality of position candidates of the wireless devices, first communication information related to communication using a first electromagnetic wave between the plurality of wireless devices, and second communication information related to communication using a second electromagnetic wave between the plurality of wireless devices.

Abstract: A vehicle includes a wireless transceiver configured to communicate with an infrastructure device in a vehicle-to-everything (V2X) channel having a predetermined channel frequency, the V2X channel being divided into a plurality of subchannels; and a controller, configured to responsive to the wireless transceiver detecting a wireless signal within the frequency of the V2X channel, measure a power spectral density (PSD) gradient of the wireless signal across at least two subchannels of the V2X channel, and compare a magnitude of the PSD gradient against a predetermined gradient threshold, and responsive to verifying the magnitude of the PSD gradient of the wireless signal is greater than the gradient threshold, identify there is an interference to the V2X channel.

Abstract: An apparatus and method for predicting the impact of various weather conditions on signal quality in a satellite communication system. A first model is generated for predicting RF signal degradation, and trained with link quality metrics from selected terminals over a first time interval. A second model is generated for predicting RF signal degradation resulting from weather conditions, and trained with both the link quality metrics from the selected terminals and weather conditions over a second predetermined time interval. Real time link quality metrics are analyzed using the trained first model and the trained second model in order to identify changes in current RF signal quality. At least one recommendation is subsequently generated to indicate a cause for changes in the current RF signal quality.

Abstract: Aspects of the subject disclosure may include, for example, a machine-readable medium with executable instructions that facilitate performance of operations by a processor including receiving a registration for a trajectory of a satellite; estimating a zone of occupancy at a future time for the satellite; determining an interference of the satellite from the zone of occupancy at the future time; determining a deconfliction for minimizing or eliminating the interference; and sending the deconfliction to a controller of the satellite. Other embodiments are disclosed.

Abstract: A communication system includes a plurality of repeater devices arranged at a plurality of different locations and are communicatively coupled over wired mediums. A first repeater device of the plurality of repeater devices obtains mmWave radio frequency (RF) and communicates, over a wired medium, the mmWave RF signal of the specified frequency to a second repeater device. The second repeater device extracts a plurality of different RF signals, corresponding to different communication protocols, from the mmWave RF signal and down-converts the extracted plurality of different RF signals. The second repeater device wirelessly distributes, from the mmWave RF signal, two or more different RF signals to end-user devices, packs content received from the end-user devices, and transmits upstream in the mmWave RF signal to the communication device via the first repeater device.

Abstract: A method for transmitting data, in the form of messages, in a power line communication network, the method being executed in a first node device of said network configured so as to communicate in a plurality of separate frequency bands with a second node device of said network, the method comprising transmitting a message in a transmission mode using at least two separate frequency bands from among said plurality of separate frequency bands in parallel. It is thus possible to have a wider bandwidth by using various separate frequency bands in parallel. The invention also relates to a communication node device configured so as to execute the abovementioned method.

Abstract: In an embodiment an apparatus includes a contactless transponder including a contactless interface and a wired interface, wherein the contactless transponder is configured to communicate with a contactless reader according to a contactless protocol through the contactless interface, a wired communication bus connected to the wired interface and at least one module connected to the bus, wherein the transponder is configured so that the reader is a master on the bus when the reader and the transponder communicate.

Abstract: According to some aspects of the techniques disclosed herein, a UE adapted to transmit on different antenna subsets transmits an indication that the UE can transmit a number of distinct RS resources, where each of the RS resources comprises at least one RS port. The UE transmits capability information indicating that the UE is capable of transmitting simultaneously on multiple RS resources and/or receives first and second RS configurations, where the first RS configuration is a first list of SRS resources that at least correspond to RS resource indications used for PUSCH transmission, and the second RS configuration is a second list of RS resources that may be used for SRS transmission. The UE receives an indication of at least one RS resource and transmits a physical channel on antennas of the UE associated with the indicated RS resources.

Abstract: Described is an apparatus of a fifth generation (5G) Evolved Node-B (eNB) operable to communicate with a 5G User Equipment (UE) on a wireless network comprising one or more processors operable to generate one or more 5G Physical Downlink Shared Channel (xPDSCH) transmissions. The one or more processors may be operable to arrange the one or more xPDSCH transmissions for transmission through one or more respectively corresponding beamformed (Tx) beams. The one or more xPDSCH transmissions may carry one or more respectively corresponding 5G System Information Blocks (xSIBs).

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of communicating a Single-User (SU) Multiple-Input-Multiple-Output (MIMO) transmission. For example, a first wireless communication station may be configured to transmit a Request to Send (RTS) to a second wireless communication station via a plurality of SU MIMO Transmit (Tx) sectors of the first wireless communication station, the RTS to establish a Transmit Opportunity (TXOP) to transmit an SU-MIMO transmission to the second wireless communication station, a control trailer of the RTS including an indication of an intent to transmit the SU-MIMO transmission to the second wireless communication station; and to transmit the SU-MIMO transmission to the second wireless communication station, upon receipt of a Clear to Send (CTS) from the second wireless communication station indicating that the second wireless communication station is ready to receive the SU-MIMO transmission.

Abstract: A method and Radio Access Network (RAN) Intelligent Controller (RIC) modeling interference patterns in a Massive Multiple Input, Multiple Output (MIMO) network. Information associated with beams transmitted in an Open RAN (O-RAN) is obtained. An interference matrix identifying interference patterns is generated based on the information associated with the beams transmitted in the O-RAN. One or more optimization solutions are determined based on the interference patterns identified in the interference matrix. One or more signals are sent to one or more elements in the O-RAN to implement the one or more optimization solutions.

Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.

Abstract: Systems and methods are described for radio frequency (RF) calibration in a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”) exploiting uplink/downlink channel reciprocity. The RF calibration is used to compute open-loop downlink precoder based on uplink channel estimates, thereby avoiding feedback overhead for channel state information as in closed-loop schemes. For example, a MU-MAS of one embodiment comprises a wireless cellular network with one or multiple beacon stations, multiple client devices and multiple distributed antennas operating cooperatively via precoding methods to eliminate inter-client interference and increase network capacity.

Abstract: Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI process. CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.

Abstract: Beamforming communication systems with crossbar switches are provided herein. In certain embodiments, a beamforming communication system includes an antenna array partitioned into a plurality of sub-arrays, a plurality of front-end channels each operatively associated with one of the sub-arrays, a plurality of data conversion channels, and a crossbar switch electrically connected between the data conversion channels and the front-end channels. Including the crossbar switch allows for a flexible allocation of the data conversion channels to the front-end channels and subsequently to each individual antenna element in the array.

Abstract: In a wireless communication system for performing single-carrier MIMO transmission, a transmitting station apparatus includes a training signal generation unit and a transmit beamforming unit that performs transmit beamforming processing using transmit weights and a receiving station apparatus includes a communication path estimation unit, an interference amount determination unit that determines whether or not a residual inter-stream interference exceeds a predetermined threshold value, a receive weight calculation unit that calculates a receive weight used for receive beamforming processing when the residual inter-stream interference exceeds the threshold value, and a receive beamforming unit that performs receive beamforming processing for suppressing residual inter-stream interferences using the receive weight.

Abstract: A device location sensing method obtains locations of N devices in a wireless network based on channel state information (CSI). Each device in the wireless network has M antennas arranged in a non-linear manner. To determine the device locations, CSI data mutually detected between every two devices in N devices is obtained and used to calculate an angle difference of arrival (ADoA) set which includes, for every two devices in the N devices relative to each of the other devices in the N devices, an ADoA that is a difference between angles of arrival (AoAs) of the two devices relative to the other device. Relative locations of the N devices are then calculated based on the ADoA set.

Abstract: A network device sends K reference signal resources, where K is an integer greater than 0. The network device receives a first random access preamble in a first random access time-frequency resource unit. The network device determines indexes of S reference signal resources and first channel state information CSI of the S reference signal resources based on the first random access preamble and the first random access time-frequency resource unit the S reference signal resources are reference signal resources in the K reference signal resources, and S is an integer greater than 0 and less than or equal to K.

Abstract: This application provides example channel measurement methods and example communication apparatuses. One example method includes determining L weighting coefficients for determining channels of K moments based on channels of M moments, where L, M, and K are all positive integers. Information about the L weighting coefficients can then be sent.

Abstract: Provided is a method and an apparatus for encoding CSI, a storage medium, and a processor, where the method includes: placing a first type of information bits of the CSI in a first type of position indexes of the position index set, and determining, from the indexes other than the first type of position indexes determined by the first type of information bits in the position index set, indexes of the second type of information bits of the CSI, indexes of the third type of information bits of the CSI, and indexes of the fourth type of information bits in the position index set; or placing the fourth type of information bits in the fourth type of position indexes of the position index set, and determining indexes of the first type of information bits, indexes of the second type of information bits, and indexes of the third type of information bits of the CSI in the position index set from indexes other than the fourth type of position indexes determined by the fourth type of information bits in the position ind