Abstract: Systems, methods, apparatuses, and computer program products for channel state information (CSI) configuration and reporting for multi-transmission reception point (TRP) operation are provided. One method may include configuring a user equipment (UE), by a network node, to provide independent channel state information (CSI) feedback per transmission reception point (TRP) and to indicate additional information. The configuring of the UE may include configuring the UE with at least one of several reporting options for generating a combined channel state information (CSI) report.

Abstract: There is provided an apparatus, said apparatus comprising means for receiving at least one signal from at least one transmitter; determining at least one parameter of the at least one signal; determining, based on the at least one parameter, which of a plurality of stored differential signal reception radiation patterns the received signal corresponds to, each of the plurality of stored radiation patterns associated with a direction of arrival; and aligning an antenna beam to the transmitter based on the direction of arrival associated with the determined stored differential signal reception radiation pattern.

Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.

Abstract: Introduced here is at least one technique to better estimate interference at a receiver. The technique includes receiving a plurality of reference signals, which each have information indicative of noise. Thus, the technique further includes, for each reference signal, determining a noise estimation and determining a distance metric and log-likelihood ratio (LLR) of the noise estimation. Once the distance metric and LLR of each reference signal is determined, the receiver can determine a final LLR based on the distance metric and LLR of each reference signal. In this manner, a final LLR is determined. This technique can be applied by any device operating on MIMO technology.

Abstract: Disclosed are a user detection technique, and a method and apparatus for channel estimation in a wireless communication system supporting massive multiple-input multiple-output.

Abstract: The present disclosure is related to a Long Training Field (LTF) signal used in a wireless local area network (WLAN) system. The LTF signal may be generated by a transmitting station (STA) and received by a receiving STA. The LTF signal may be included in a physical protocol data unit (PPDU), and the PPDU may be transmitted an 80 MHz band. The LTF sequence may include at least two parts, i.e., a first LTF sequence and a second LTF sequence.

Abstract: An example system includes: interleaving circuitry including a data input, a plurality of data outputs, and a plurality of clock inputs, the data input coupled to the received data input and each of the plurality of clock inputs coupled to one of the plurality of receiver clock outputs; and handoff circuitry coupled to the interleaving circuitry, the handoff circuitry including: comparison circuitry coupled to the clock generation circuitry and configured to compare the plurality of receiver clocks to the transmission clock; clock configuration circuitry coupled to the comparison circuitry and configured to select one of the plurality of receiver clocks based on the comparison circuitry; and a plurality of flip-flops coupled to the clock configuration circuitry and configured to convert the plurality of data outputs from the plurality of receiver clocks to the transmission clock to generate a plurality of transmission data streams based on the one of the plurality of receiver clocks selected by the clock conf

Abstract: Apparatuses and methods for composite beam paring in a wireless communication system. A method includes identifying, based on one or more user equipment (UE) reports, information on a plurality of narrow beams; determining beam correlation information for the plurality of narrow beams based on the one or more UE reports; and determining pairs of narrow beams from among the plurality of narrow beams based on the correlation information.

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may update a capability to a network entity periodically when the complexity, power, or memory needs of the UE change. The UE may additionally update the capability upon being triggered by a network entity, during a time scheduled by the network entity, upon the expiration of a timer, etc. The capabilities may be or include explicit values for beam switching delay, or an index selecting delay values from a table previously configured to the UE, for example. Additionally, The UE and network entity may support communications according to capability values associated with a time delay between a transmitted reference signal with repetition and the UE being ready for a downlink transmission using a beam selected based on the reference signal. This capability may indicate to the network entity to avoid scheduling downlink messages during the delay.

Abstract: A method (1400) performed by a wireless device (200) for multibeam precoder based channel state information, CSI, feedback reporting is provided, A CSI report comprises a first part, CSI Part 1, and a second part, CSI Part 2. The method (1400) comprises generating (1401) the CSI report, wherein the CSI Part 1 comprises an indication of a number of non-zero coefficients, and a payload size of the indication of the number of non-zero coefficients is dependent on a rank restriction of the wireless device. The method also comprising transmitting (1402) the CSI report to a network node, wherein one or more of a payload of the CSI Part 2 and a payload size of the CSI Part 2 is based on the number of non-zero coefficients indicated in the CSI Part 1.

Abstract: Embodiments of the present invention disclose a beam indication method and apparatus, a device, and a medium. The method includes: receiving beam indication information transmitted by a network-side device, where the beam indication information is used to indicate a plurality of pieces of beam information of a channel or a reference signal, and the plurality of pieces of beam information correspond to different transmission and reception point TRP identification information; and transmitting the channel or the reference signal according to the beam indication information.

Abstract: The present invention discloses a method for the design of complex-valued channel equalizer of digital communication systems, including: constructing a channel equalizer by using a complex-valued neural network; collecting the output signal y(n)=[y(n), y(n?1), . . . , y(n?m+1)]T of the nonlinear channel of the underlying digital communication system as the input of complex-valued neural network and s(n??) as the desired output, and taking the mean squared error as the loss function for the training of complex-valued neural network, which is optimized by the proposed adaptive complex-valued L-BFGS algorithm, and finally using it to implement the design of channel equalizer for digital communication systems. The present invention proposes the use of a multi-layer feedforward complex-valued neural network to construct complex-valued channel equalizer.

Abstract: A method for providing signals for beam-formed transmission comprises retrieving, from a memory, of first vector-associated data defined by an obtained first beam index, assigned to a first signal, scheduled to be transmitted by beamforming in a first direction. The memory has vector-associated data characterizing at least two sets of beamforming vectors for each polarization and for each one of a plurality of beam directions. The beamforming vectors for each polarization and plurality of directions present different tapering and/or non-tapering. The first vector-associated data characterizes a first selected set of beamforming vectors that are designed to give a beam in the first direction. The first beam index comprises information for defining vector-associated data characterizing a particular one of the at least two sets for the first direction. A beamforming of the first signal is initiated by use of the first vector-associated data.

Abstract: An electronic device includes an antenna module including an antenna array, a radio frequency integrated circuit (RFIC) connected with the antenna array and a flexible printed circuit board connected with the RFIC, a connector disposed on the flexible printed circuit board, a communication processor disposed on a first printed circuit board, a coaxial cable electrically connecting the flexible printed circuit board and the communication processor through the connector, and a second printed circuit board configured to electrically connect the communication processor and the flexible printed circuit board. The communication processor provides a data signal to be transmitted to an external electronic device to the RFIC along a first path in the flexible printed circuit board through the coaxial cable and the connector, and provide a control signal to the RFIC along a second path in the flexible printed circuit board through the second printed circuit board.

Abstract: Technologies directed to channel state information (CSI) sending in the 2.4 GHz band are described. A method includes receiving first CSI data representing channel properties of a first wireless channel used by first and wireless devices that operates in the 2.4 GHz band. The method receives second and third CSI data corresponding to second and third wireless channels. The method determines an inference probability of a motion or a non-motion condition in the geographical region based on an average probability of CSI samples from the first, second, and third CSI data.

Abstract: A hybrid beamforming device utilizes analog beamformers (ABF) and digital beamformers (DBF) to produce a desired radio frequency radiation pattern having one or more lobes pointing in particular directions. A set of directions, such as each pointing toward a different candidate area of the sky, are processed to determine a coarse direction. ABF beam coefficients are determined based on the coarse direction. DBF beam coefficients are determined based on the directions in the set of directions, providing more precise directionality in the pattern. The ABF beam coefficients may be sent to the ABFs at a first cadence, such as every second. The DBF beam coefficients may be sent to the DBFs at a second cadence that is faster than the first cadence, such as every millisecond. This facilitates rapid scanning of different precision directions, such as of different portions of the sky to receive a broadcast transmission from a satellite.

Abstract: This application provides example methods and example devices for sending channel state information. One example method includes receiving L reference signals, where L is a positive integer greater than or equal to 1. Channel state information can then be sent, where the channel state information includes resource indexes of M reference signals in the L reference signals, K pieces of antenna panel state information, and M sets of channel quality information, where the K pieces of antenna panel state information indicate states of antenna panels, the K pieces of antenna panel state information are related to M sets of channel quality information, the M sets of channel quality information are in a one-to-one correspondence with the resource indexes of the M reference signals.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify, for each of one or more candidate beams in a set of candidate beams, a downlink throughput, an uplink throughput, a downlink power consumption, and an uplink power consumption. The UE may select a beam based at least in part on: at least one of the downlink throughput or the uplink throughput, at least one of the downlink power consumption or the uplink power consumption, and one or more throughput thresholds. The UE may communicate using the selected beam. Numerous other aspects are described.

Abstract: Systems, methods, and devices to reduce the channel estimation overhead by collecting data from many UEs and building a location-based mathematical model are disclosed. During building of the model, a reference signal is used to collect location- and signal-related data from connected UEs. Once the model is successfully built, it is then transmitted and/or downloaded to each new UE that connects to the base station. The UEs and/or the base stations then use this model to determine their own transmission parameter values. The UEs also report their location to the base stations, which use the model to estimate channel conditions and adapt transmission parameters for themselves.

Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.