Abstract: Methods, systems, and devices for wireless communications are described that provide for cooperative full-duplex techniques for sidelink communications. A first device that supports full-duplex communications may transmit a first message to a second device while concurrently receiving a second message from a third device. The first device may determine a set of parameters that indicate a presence of one or more objects that cause interference at the first device based on communicating with the second and third devices. The set of parameters may include location information, directional beam information, main beam information, and null interference beam information, or velocity information, or any combination thereof. The first device may broadcast an indication of the set of parameters to other devices. In some examples, a device that receives the set of parameters may determine communications parameters for communication with other devices that accounts for the indicated objects.

Abstract: Methods, systems, and devices for spectral sharing wireless systems, wherein multiple user devices share time and frequency resources for uplink and/or downlink transmissions, are described. One example method includes transmitting transmission symbols from the network station to at least one user device by processing through a first precoder and a pre-compensation stage, wherein the pre-compensation stage is selected to have the transmission symbols receivable at the at least one user device to appear as if the transmission symbols are processed by a second precoder different from the first precoder.

Abstract: A system and method for performing cross-domain communication between a first domain and a second domain is disclosed. The system includes a controller configured to receive a data packet and output an approved data packet. The system includes processors and memory that instruct the processors to receiving a data packet from the first domain, deconstruct the data packet into subcomponents, apply a subcomponent-specific guard rule to a corresponding subcomponent, determine if each of the subcomponents have been approved by an application of the subcomponent specific guard rules, and upon a determination that each of the subcomponents have been approved, merge the subcomponents into the approved data packet. The system and method also include transmitting the approved data packet.

Abstract: Apparatuses, methods, and systems are disclosed for determining an association between DMRS and PTRS. One apparatus includes a processor that: determines a scheduled physical resource block position and bandwidth; and determines, based on the scheduled physical resource block position and bandwidth, an associated demodulation reference signal port index within the physical resource block for a phase tracking reference signal.

Abstract: A communication method and a system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure discloses a method and apparatus for supporting transmission and reception to a plurality of TRPs, and a method and apparatus for updating PDSCH beam information of several serving cells together in a CA situation.

Abstract: Methods and apparatus for beamforming in MIMO systems are disclosed. In an embodiment, a method is provided that includes associating a plurality of signal-to-noise ratio (SNR) ranges with a plurality of precoding schemes, respectively, identifying groups of user equipment (UE) that have SNRs within each SNR range, and configuring downlink transmissions to each group of UE to use a precoding scheme associated with the SNR range of that group.

Abstract: Systems for determining a variability in a state of a medium include one or more transmit elements or antennas and one or more receive elements or antennas which are relatively decoupled from one another. The transmit and receive elements or antennas can be less than 95% coupled to one another. The system also includes a transmit circuit configured to generate a transmit signal to be transmitted, which is in a radio or microwave frequency range of the electromagnetic spectrum. The system also includes a receive circuit configured to receive a response detected by the at least one receive antenna resulting from transmission of the transmit signal into the medium. The system includes a processor configured to determine the variability in the state of the medium based on processing of the response over time. The variability can further be used to direct notifications or automated actions.

Abstract: Beam alignment is a critical requirement in 5G-Advanced and 6G due to the high density of user devices anticipated in the coming years. However, prior-art beam alignment procedures are slow and costly in terms of resource usage. Therefore, disclosed herein are methods enabling a user device to determine the direction toward the base station rapidly at very low cost. The base station emits a tailored pulse with an angle-dependent phase, varying from a first phase at a first angle, to a second phase at a second angle, followed by a uniform-phase calibrator pulse. The user device can measure the as-received phase of the tailored pulse relative to the calibrator pulse, and thereby determine the user's direction relative to the base station. The user device can then inform the base station of the received phase, which is proportional to the angle. Both user and base station thereby obtain instant beam alignment.

Abstract: A device including a plurality of antennas may sense or receive data related to a magnetic field. A strength of the magnetic field may be determined. Based on the strength of the magnetic field, a location or orientation of the device may be determined. The location of the device may be used to select an antenna from the plurality of antennas for transmitting data from the device or receiving data at the device. If the location of the device is associated with historical performance data, the historical performance data may be used to select an antenna from the plurality of antennas.

Abstract: This disclosure describes techniques for detecting multipath radar returns and modifying radar data. A vehicle may use radar devices to receive radar data while traversing within an environment. The vehicle may process the radar data using a virtual array based on an arraignment of the antennae within an aperture of the radar device. Using the virtual array, the vehicle may determine an elevated noise level that may be indicative of a multipath radar return. Based on the elevated noise level, the vehicle may determine a second virtual array associated with multipath radar returns, and may process the radar data using the second virtual array. Based on determining that the noise level associated with the second virtual array is lower than the initial noise level, the vehicle may determine that the radar data includes a multipath radar return, and may modify the radar data to correct or mitigate the error caused by the multipath return.

Abstract: A wireless communication apparatus includes a terminal selection unit that selects one or more user terminals, a prediction unit that derives a prediction value of an interference amount of a stream group transmitted from a plurality of antennas for the selected one or more user terminals, a collection unit that, when the prediction value of the interference amount is less than a threshold value, collects reception power values of streams included in the stream group from the selected one or more user terminals, an antenna selection unit that selects the plurality of streams in descending order of reception power values and selecting the plurality of antennas associated with the plurality of selected streams, and a transmission unit that transmits the plurality of selected streams by beam forming using the plurality of selected antennas.

Abstract: A wireless device, such as a base station, may be configured to determine a set of silent symbols for beam calibration measurements by a User Equipment (UE) for full duplex communication. The wireless device may transmit, to the UE, an indication of the set of silent symbols for the beam calibration measurements by the UE. The wireless device may refrain from transmitting during the set of silent symbols. A wireless device, such as a UE, may receive an indication of a set of silent symbols for a beam calibration measurement by the UE for full duplex communication with a base station. The wireless device may perform beam calibration measurements for beam candidates.

Abstract: The present disclosure provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator generates code words by encoding data, a layer mapping unit places each CW in one or a plurality of layers, a DMRS generator generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.

Abstract: User equipment includes a first antenna, a second antenna, a first transceiver coupled to the first antenna, a second transceiver coupled to the second antenna, and processing circuitry communicatively coupled to the first transceiver and the second transceiver. The first transceiver receives or transmits a first signal via the first antenna, and the second transceiver receives or transmits a second signal via the second antenna. The processing circuitry receives an indication that a signal characteristic of the first signal is less than a first threshold, and decreases power to the first antenna, the first receiver, or both, based on the signal characteristic of the first signal being less than the first threshold.

Abstract: An adjoint matrix adjH(z, t) of a transfer function matrix H(z, t) established between a transmission station and a reception station is defined as a transmission weight WT(z). A training signal multiplied by the transmission weight WT(z) is transmitted from transmission antennas toward a reception station. M sequence portions S included in the received training signals #1 and #2 are connected in series to generate a virtual training signal block. A communication path response R(m) implemented by using the transmission weight WT(z) is calculated by calculating a correlation between both an M sequence portion S and a comparison sequence portion at each position while sliding the comparison sequence portion with respect to the virtual training signal block. Based on the communication path response R(m), a reception equalization weight WR(z) corresponding to an inverse response det{H(z, t)}?1 of a determinant det{H(z, t)} of the transfer function matrix H(z, t) is calculated.

Abstract: Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing polarization adjusting for one or more orthogonally-polarized element pairs of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Abstract: A terminal for performing Channel State Information (CSI) reporting for type II port selection codebook includes a receiver that receives beamformed CSI reference signal (RS) ports comprising spatial domain (SD) beams and frequency domain (FD) base. In addition, the terminal includes a processor that, using higher layer signaling, configures a number of SD beam selection and a number of FD base selection, and selects a first value from a first set of values for the number of SD beam selection and a second value from a second set of values for the number of FD base section. The terminal further includes a transmitter that transmits the first value and the second values.

Abstract: Apparatuses, methods, and systems are disclosed for uplink power control. One method includes: operating a network entity with multiple antenna arrays; determining a first closed-loop power control process for a first set of uplink beam patterns based on a first antenna array of the multiple antenna arrays, wherein at least one receive beam pattern of the first antenna array is used to receive a first uplink transmission using at least one uplink beam pattern; determining a second closed-loop power control process for a second set of uplink beam patterns based on a second antenna array of the multiple antenna arrays, wherein the second antenna array is different from the first antenna array; and indicating to the device in a configuration message the first closed-loop power control process and the second closed-loop power control process.

Abstract: The present disclosure relates to a positioning method using a sidelink, and a device. According to one aspect, a method of performing positioning through a sidelink by a vehicle terminal can comprise the steps of: receiving a request positioning reference signal (PRS) from a positioning terminal; determining the positioning terminal-based direction angle on the basis of the request PRS; determining a response PRS ID corresponding to the request PRS ID of a request RRS, on the basis of the determined direction angle; and transmitting a response PRS corresponding to the determined response PRS ID. The vehicle terminal is capable of communicating with at least one of another vehicle terminal, a UE related to an autonomous driving vehicle, the BS or a network.

Abstract: A communications device configured to transmit data to or receive data from an infrastructure equipment of a wireless communications network is provided. The communications device comprises transceiver circuitry configured to transmit signals and receive signals via a wireless access interface provided by the wireless communications network, and controller circuitry configured in combination with the transceiver circuitry to receive, from the infrastructure equipment, in one of a plurality of sets of radio resources each forming a physical downlink control channel, PDDCH, in a first time divided slot of the wireless access interface, one of an uplink grant indicating an allocation of radio resources forming one of a physical uplink shared channel, PUSCH, of the wireless access interface and a downlink grant indicating an allocation of radio resources forming a physical downlink shared channel, PDSCH, of the wireless access interface, and to determine if a specified condition has been met.

Abstract: Embodiments of a method in a network node for resource allocation are disclosed. The method includes selecting a user set of wireless devices from available predefined user sets; estimating expected data rates for the wireless devices in the selected user set for a selected radio resource; computing a weighted sum of the expected rates of the wireless devices in the user set; and assigning a given the selected radio resource to the user set with the highest weighted sum. A criterion for dynamic resource allocation that can opportunistically exploit the channel variations towards achieving the optimal trade-off between the network capacity and wireless device-fairness is also disclosed.

Abstract: A subscriber module of a fixed wireless access communication system comprises an offset Gregorian antenna arrangement, an array of antenna elements arranged as a feed, a beamforming network and a processor. The processor is configured to provide, to the beamformer, a pre-determined plurality of antenna weight vectors configured to form a plurality of beams, the orientations of the plurality of beams being arranged in a grid comprising a plurality of rows, each of the pre-determined plurality of antenna weight vectors being configured to form a respective beam from the primary reflector dish of the Gregorian antenna arrangement by forming a respective feed beam from the array of antenna elements. The relationship between the azimuth and elevation direction of each feed beam and the azimuth and elevation direction of the respective beam from the primary reflector dish is a non-linear function of azimuth and elevation.

Abstract: This application provides a parameter configuration method and a communications apparatus. The method includes: receiving, by a terminal device, an indication of a first mapping relationship from a network device, where the first mapping relationship is a mapping relationship in a preconfigured first mapping relationship group, and the first mapping relationship group includes at least one mapping relationship, to indicate at least one correspondence between a reporting quantity of spatial domain vectors and a reporting quantity of frequency domain vectors; and determining, by the terminal device, the reporting quantity of spatial domain vectors and the reporting quantity of frequency domain vectors based on the first mapping relationship.

Abstract: An apparatus comprising means for performing: grouping columns of a linear combination coefficient matrix into a predefined number of clusters; and sending at least one of the clusters in a second part of a uplink control signalling transmission of a channel to an access node, wherein the uplink control signalling transmission comprises a first part and the second part.

Abstract: A system and method provide a hybrid communication scheme that achieves high communication rates with post-quantum computational security guarantees. Messages to be securely communicated are first mixed using an individually secure encoding, such as a linear network code, and some of the encoded messages are further encrypted. The encrypted and unencrypted messages are sent via different communications channels. Each unencrypted message becomes almost as secure as the encrypted messages because of the pre-mixing, since decoding any one of the messages requires all of the messages, including the encrypted messages. Thus, a very few encrypted messages may be used, allowing the rate of communication to approach one as the number of channels increases. This is particularly beneficial when a classical public-key cryptosystem can only be used in part of the data transmitted or stored, in the presence of noisy channels, in distributed data storage, and other applications.

Abstract: A cellular beamforming base station antenna is provided having a reflector, a plurality of signal ports located at the bottom of said reflector, a calibration circuit, a plurality of beamformers, coupled to the signal ports, and a plurality of radiating elements, coupled to the beamformers. The plurality of radiating elements are arranged into a plurality of vertically aligned columns disposed across a width of the reflector, the plurality of radiating elements are each also positioned in one of a plurality of horizontally aligned rows along the length of the reflector. Elements in one of the plurality of rows of elements are connected to at least a first of the plurality of beamformers. Elements in another of the plurality of rows of elements are connected to a second of the plurality of beamformers. Outputs of the first and second beamformers are connected to the calibration circuit which is connected to different ports located on a bottom of the reflector.

Abstract: A method for operating a user equipment (UE) comprises receiving configuration information about a channel state information (CSI) report, the configuration information including a number of radio remote heads (RRHs), NRRH>1; selecting a subset of RRHs from the NRRH RRHs independently for each subband (SB); determining the CSI report including an indicator indicating the selected subset of RRHs for each SB; and transmitting the CSI report including the indicator indicating the selected subset of RRHs for each SB.

Abstract: In one aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE) or a component thereof. The apparatus may be configured to receive pilot signals from a base station on a first subset of a set of antenna ports of a channel. The apparatus may be further configured to measure a first set of values corresponding to the first subset of the set of antenna ports based on receiving the pilot signals transmitted from the base station on the first subset of the set of antenna ports. The apparatus may be further configured to derive a second set of values corresponding to a second subset of the set of antenna ports of the channel based on receiving the pilot signals on the first subset of the set of antenna ports.

Abstract: Methods and apparatus for successive interference cancellation (SIC). In an embodiment, a method includes receiving symbols from a plurality of user equipment (UE), identify a target UE and non-target UEs, decoding code blocks from the symbols received from the non-target UEs to generate decoded bits for each code block. The method also includes performing a CRC check on each code block to generate a tag (0) when the CRC check passes and a tag (1) when the CRC check fails, and re-encoding the decoded bits to generate re-encoded code blocks having the associated tags attached. The method also includes reconstructing symbols from the re-encoded code blocks where symbols reconstructed from re-encoded code blocks having tag (0) are reconstructed with data and symbols reconstructed from re-encoded code blocks having tag (1) are reconstructed as zero value symbols, and utilizing the reconstructed symbols to cancel interference on symbols from the target UE.

Abstract: A terminal includes a reception unit configured to receive information associated with a signal transmitted to an apparatus other than the terminal, in MU-MIMO (MultiUser-Multiple Input Multiple Output) and a reference signal from a base station, a control unit configured to estimate interference from the signal transmitted to the apparatus other than the terminal to a signal transmitted to the terminal, based on the information associated with the signal transmitted to the apparatus other than the terminal and the reference signal, and a communication unit configured to suppress the interference and receive a data signal from the base station.

Abstract: Techniques are discussed herein identify transmission strategies and to communicate those identified transmission strategies in a transparent communication environment. In some examples, a user equipment (UE) may identify a new transmission strategy for a downlink channel different from a current transmission strategy for the down link channel. The UE may transmit a channel state information (CSI) message that includes an indication of the new transmission strategy identified by the UE. In some examples, a base station may identify the new transmission strategy for the downlink channel. The base station may transmit a codebook subset restriction (CSR) indicator that includes an indication of the new transmission strategy identified by the base station. In some examples, the UE may modify its feedback strategy based on the new transmission strategy.

Abstract: According to one embodiment, a compact broadband radio frequency (RF) frontend circuit includes a number of single-channel transceivers, a number of analog to digital converters (ADCs), where each of the ADCs is coupled to one of the single-channel transceivers, a number of digital to analog converters (DACs), where each of the DACs is coupled to one of the single-channel transceivers, and a digital signal processing (DSP) unit coupled to the ADCs and the DACs. The DSP unit is configured to generate a first set of digital data streams simultaneously and each of the first set of digital data streams is converted by a respective one of the DACs into an analog data stream to be transmitted to a remote device by a respective one of the single-channel transceiver.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with a set of beamforming weights, each beamforming weight corresponding to a transmit beam of a set of transmit beams that may each include a same primary lobe and one or more different side lobes. The UE may then perform a beam training procedure to determine which transmit beams cause more or less interference at one or more nearby UEs. The UE may transmit signals using one or more of the transmit beams, and the nearby UEs may determine which transmit beams and corresponding beamforming weights cause more or less interference. The nearby UEs may then indicate those transmit beams or beamforming weights that cause more or less interference via different options.

Abstract: Embodiments of the present disclosure relate to device, method, device and computer readable storage media of beam-forming scheme in higher rank transmission for massive multiple input multiple output system. The method comprises determining a target beam for carrying a transmission of a reference signal from the base station to the user equipment; determining a target arrangement of the plurality of ports formed at an antenna array of the base station; and transmitting, to the user equipment, different portions of the target beam through a plurality of ports based on the target arrangement. In this way, a new beamforming method when Massive-MIMO choose higher rank transmission in multi ports communication system is proposed. The gNB would only select the best beam with different halves in the same polarization to keep the QCL principles.

Abstract: This disclosure relates to techniques for performing multi-transmission and reception point operation in a wireless communication system. A plurality of transmission control indication states may be indicated for future use, e.g., using one or more paired lists. A subset of the indicated states may be activated. One or more states of the subset may be used for performing multi-transmission and reception point operation in a single downlink control information mode.

Abstract: This application describes a channel information feedback method and a communication apparatus. The method includes a terminal device that receives configuration information sent by a network device, where the configuration information is used to configure a feedback mode of channel information. The terminal device may feed back current channel information to the network device when the feedback mode configured by using the configuration information is a first mode. The terminal device may alternatively feeds back predicted channel information to the network device when the feedback mode configured by using the configuration information is a second mode. System performance is therefore improved by the method described in this application because channel information feedback requirements in different scenarios can be met.

Abstract: Disclosed is a transmit method based on satellite massive Multiple-Input Multiple-Output (MIMO) integrated sensing and communication, where a satellite end is equipped with a massive MIMO array to implement an integrated sensing and communication system. The satellite end sends a communication signal to multiple user terminals based on statistical properties of electromagnetic wave propagation, and detects multiple targets simultaneously, thus realizing simultaneous communication of the satellite end with the user terminals and sensing for the targets. The present disclosure fully utilizes the spectrum resources, implements a flexible switch between wireless communication and target sensing functions based on a satellite, and mitigates the effects of the beam squint on system performance, thus greatly improving communication performance and radar resolution and being applicable for construction of an integrated network of space, air, ground and sea to achieve global coverage.

Abstract: A reflection direction control method includes an arrival direction estimation step of estimating an arrival direction of radio waves transmitted by a wireless terminal to one or more reflection units each including a plurality of reflection elements capable of dynamically changing phase characteristics when the radio wave is reflected, a phase control step of controlling a phase of a radio wave reflected by each of the plurality of reflection elements so that the reflection unit reflects, in a predetermined direction, the radio wave transmitted from the estimated arrival direction, and a switching step of switching between an antenna mode in which the reflection unit is caused to receive the radio wave of which the arrival direction is estimated and a reflection mode in which the reflection unit is caused to reflect the radio wave.

Abstract: In one embodiment, a method is disclosed for port reduction, comprising: calculating, at a distributed unit (DU), beamforming weights based on received DMRS channel estimates; sending the calculated beamforming weights to a radio unit (RU); applying, at the RU, port reduction to DMRS symbols based on the calculated beamforming weights; compressing IQ data and received DMRS symbol data to compensate for an underlying bandwidth increase, thereby enabling beamforming at the RU. PUSCH data may be compressed. Beamforming weight calculations may be performed in the O-DU. Beamforming weight calculations may be provided to the L2 scheduler. BFP format compression may be performed. Channel information may be compressed for non-signal data. DMRS compression may be performed at the CU. The DMRS pattern may be received from the control plane. An equalizer weight calculation may be performed to merge a plurality of CSI estimates from different RUs for a given user to calculate joint equalization.

Abstract: Exemplary apparatus can be provided that can comprise a plurality of antennas; a plurality of conversion systems, each capable of accepting and/or producing one or more digital signals; a circuit (e.g., radio circuit) configured to couple the antennas to the conversion systems; and computer arrangement configurable to selectively control operation of the conversion systems according to one or more predetermined criteria. In some embodiments, the conversion systems can be configured to utilize different sampling rates and/or quantization resolutions and/or to accept and/or produce different numbers of digital signals. Exemplary conversion systems can be enabled/disabled such that one or more can operate simultaneously based on, e.g., subframe timing of received signal, predetermined schedule, power or energy of s, availability of reference signals, channel coherence time, and apparatus energy consumption.

Abstract: A method, system and apparatus for an optimized radiation pattern for an indoor ceiling and/or wall mounted radio unit for distributed antenna systems/radio dot systems (DAS/RDS) are disclosed. According to one aspect, a method includes obtaining beam forming weights for generating a shaped radiation pattern that provides a same effective isotropic power radiated (EIPR) at multiple locations inside a target cell, and applying the obtained beam forming weights to signals directed to an array of antenna elements of the radio interface to generate the shaped radiation pattern.

Abstract: Embodiments of the present disclosure provide a multi-user detection method and apparatus for cell-free Multiple-Input Multiple-Output (MIMO). The method includes: receiving, by a Central Processing Unit (CPU) of a cell-free MIMO system, an MRC merged data symbol stream SMRC=HHY of K users transmitted by an Access Point (AP), and multiplying SMRC by a conjugate transpose matrix SMRCH of SMRC to obtain a K*K matrix SMRCSMRCH; and performing singular value decomposition on the matrix SMRCSMRCH to obtain a unitary matrix V and a diagonal matrix A, obtaining a diagonal matrix ? according to the diagonal matrix A, and estimating sending-end data symbols of the K users by a formula {tilde over (S)}=V?VHSMRC.

Abstract: A method performed by a UE for providing CSI feedback in the form of CSI reports in a wireless communication system includes receiving, from a gNB, higher layer configurations of one or more downlink reference signals, and CSI report configurations associated with the downlink reference signal configurations, and a radio signal including the downlink reference signals according to the one or more downlink reference signal configurations, the downlink reference signals provided over a configured number of frequency domain resources, time domain resources and one or more ports; determining, for each CSI report, a precoding matrix based on the downlink reference signals and two codebooks, and one or more non-zero combining coefficients for complex combining of one or more spatial domain and delay domain basis vectors; and reporting to the network node the CSI reports for the CSI report configurations.

Abstract: A wireless device and a method therein for assisting in precoder selection for wireless communication with a Radio Node (RN), and a RN for performing precoder selection for wireless communication with a wireless device. The wireless device is configured with a set of precoders. The wireless device determines a subset of precoders out of the set of precoders; and transmits, to the RN, at least one Sounding Reference Signal (SRS) precoded with a respective at least one precoder comprised in the subset. The RN receives, from the wireless device, at least one SRS precoded with a respective at least one precoder comprised in a subset of precoders; and transmits, to the wireless device, a signal indicative of a selected precoder to be used for a transmission to the RN, wherein the selected precoder is indirectly selected based on the received at least one SRS.

Abstract: An electronic device on a control device side for a wireless communication system, includes: a processing circuit configured to group a plurality of terminal devices of the wireless communication system into one linear precoding terminal device group and one or more nonlinear precoding terminal device groups based on respective nonlinear precoding capabilities and channel state information of the plurality of terminal devices; and notify each terminal device whether nonlinear precoding or linear precoding is to be employed in communication for the terminal device by means of a nonlinear precoding indicator based on the grouping.

Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for beamforming training. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing the instructions of monitoring a first beamforming training reference signal (BT-RS) and physical broadcast channel (PBCH) of a network node to acquire symbol timing and subframe timing, where a common part of the PBCH includes a first beam ID. The processor is also configured to execute the instructions of transmitting, to the network node, a beam ID feedback with a unique training sequence generated based on the first beam ID to establish a radio resource control (RRC) connection The processor is further configured to execute the instructions of receiving, from the network node, a second BT-RS to perform beamforming training.

Abstract: A control device configured to predict prediction information based on in-operation time-series data with use of a learning device, the learning device being trained, during training, (i) with time-series data, using as training data, in which pieces of radio quality information of respective antennas that are disposed in a distributed manner and that perform wireless communications with a terminal device are arranged in time series, and (ii) with assignment information, using as training data, that includes information about the antenna assigned, from the training data, to the wireless communications after a predetermined length of time, wherein the in-operation time-series data being the time-series data acquired during operation, and the prediction information including information about the antenna to be assigned, from the in-operation time-series data, to the wireless communications after the predetermined length of time.

Abstract: A reconfiguration intelligent surface device and a beamforming method thereof, the beamforming method adapted to the reconfiguration intelligent surface device is described below. A timing synchronization signal is received. A frame boundary synchronized with a radio signal transmission/reflection device is established according to the timing synchronization signal. Beam control information is received. A reflected beam is formed by reflecting a radio signal beam transmitted or reflected by the radio signal transmission/reflection device according to the beam control information based on the frame boundary synchronized with the radio signal transmission/reflection device.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may identify a collision between a data transmission and a demodulation reference signal (DMRS) transmission in a full-duplex time-frequency resource. The BS may transmit, to a wireless communication device, an indication of a time-frequency mapping for a zero-power DMRS (ZP-DMRS) in the full-duplex time-frequency resource. The time-frequency mapping for the ZP-DMRS, and a time-frequency mapping in the full-duplex time-frequency resource for the DMRS transmission, may be a same time-frequency mapping. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a channel matrix of the UE. The UE may identify a set of beam weights according to the channel matrix. The UE may identify a set of beam properties based at least in part on an index, wherein the index is based at least in part on the set of beam weights, and wherein the index is identified without storing the set of beam weights in a long-term memory of the UE. The UE may generate a beam using the set of beam properties. Numerous other aspects are described.