44results about "Local circuits" patented technology

Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for determining a beamformer to apply to groups of two or more elements of a reconfigurable intelligent surface (RIS). The beamformer is applied to the groups of elements of the RIS to facilitate communications at the operating frequency by re-radiating radio signals via the elements of the RIS. For example, by grouping RIS elements in different manners and applying a beamformer (e.g., precoding weights) to the group as if the group were a single RIS element, the RIS can be reconfigured to behave differently to suit various operating frequencies of the radio signals.

Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE transmits, to a network entity via a first beam, a maximum permissible exposure (MPE) report indicating a second beam. The UE then receives a response indicating an acknowledgment of the MPE report from the network entity. The UE then transmits an uplink (UL) transmission using the second beam to the network entity.

When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement / negative acknowledgement (ACK / NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.

A reception-side apparatus includes: M receive antennas; and a processor configured to execute a first process of acquiring a first signal received from a first transmission-side apparatus from among signals simultaneously received from the N transmission-side apparatuses by receive diversity processing, and acquiring first data by demodulating and decoding the first signal. In the case of N>M, the processor acquires, for each of all patterns of a combination of a first signal, second signals from M−1 transmission-side apparatuses which are to be cancelled by receive diversity processing and third signals from N−M transmission-side apparatuses which are not to be cancelled by the receive diversity processing, a power ratio of power of the first signal relative to total power of the second and third signals based on a predetermined weight and a channel estimate of each signal, and selects a combination with the largest power ratio from among all the patterns.

A wireless communication device can include a communication control interface. Beamforming circuitry coupled to the communication control interface receives, over the communication control interface, an index value into a coarse codebook and an offset vector. The index value indicates a value within the coarse codebook, and the offset vector indicates an offset value for a desired beam relative to the index value. The beamforming circuitry determines a new beam direction based on the index value and the offset vector using one of interpolation and extrapolation.

Ultra-wideband (UWB) systems are well-suited to applications such peripheral and device interconnections, sensor networks, control and communications, medical systems, and personal area networks. Whilst emission levels permitted by regulatory agencies are low forcing UWB systems tend to short-range applications other applications may be considered where regulatory restrictions are relaxed and / or not present when addressing military and civilian requirements for communications between individuals, electronic devices, control centers, and electronic systems for example. Accordingly, UWB transmitters, UWB receivers and UWB transceivers are outlined providing flexible configuration and management by the electronic devices, such as portable electronic devices, fixed electronic devices, and sensors for example, to enable their deployment including standalone systems solely exploiting solar harvesting. Protocols, architectures, control schemes as well as software development kit and / or hardware development kits are outlined enabling reduced complexity and flexible configurations of UWB wireless radios within a wide range of devices.

Methods, systems, and devices for line of sight (LOS) multiple input multiple output (MIMO) signaling aspects for wireless communication. A wireless device may transmit, to a network device, a capability message indicating that the wireless device supports a LOS mode. The wireless device may receive, from the network device in response to the capability message, a control message indicating activation of the LOS mode and at least one LOS mode parameter based at least in part on a channel measurement associated with a wireless channel between the wireless device and the network device indicating that the wireless channel satisfies a LOS path criterion. The wireless device may communicate a message with the network device in accordance with the LOS mode parameter.

A communication method and apparatus is provided so that a fading channel can implement a good error correction capability. This helps improve information transmission reliability. The method includes: a transmit end device determines, based on N bit sets, a first sequence and a second sequence that are obtained through quadrature amplitude modulation QAM. The first sequence includes N in-phase components, and the second sequence includes N quadrature components; or the first sequence includes N quadrature components, and the second sequence includes N in-phase components, where N is an integer greater than or equal to 2. Then, the transmit end device performs interleaving processing on the first sequence, to obtain a third sequence. Then, the transmit end device sends, to a receive end device, a symbol sequence determined based on the second sequence and the third sequence. The symbol sequence includes N QAM symbols.

Systems, methods, apparatuses, and computer program products for interference reduction. One method may include calculating at least one downlink beamforming coefficients vector, and estimating at least one channel coefficient. Interference may be calculated, and a configuration may be selected based upon a determination of interference power. The transformed beamforming coefficients vector may be calculated by at least one of minimizing maximum interference power over one or more uplink antenna elements, minimizing mean interference power over one or more uplink antenna elements, or minimizing interference power based on uplink beamforming.

A communication apparatus includes: storing means for storing information indicating a first base set including a first base sequence to an N-th base sequence; shifting means for generating a first shift sequence to an N-th shift sequence by determining a shift amount based on transmission data, and cyclic shifting an n-th base sequence (n being an integer from 1 to N) by the shift amount; holding means for holding timing information indicating transmission timings of sequences; and transmitting means for transmitting each shift sequence according to the timing information, wherein the first base sequence to the N-th base sequence satisfy a first condition of: a total across the first base sequence to the N-th base sequence of correlation values of autocorrelation is not 0 when a shift amount is 0, and a total across the first base sequence to the N-th base sequence of correlation values of autocorrelation is 0 when a shift amount is different from 0 used in data transmission.

A method includes logically partitioning an antenna panel of a base station into multiple subpanels. The method also includes identifying multiple user groups for multi-user multiple-input multiple-output (MU-MIMO) spatial multiplexing, each user group comprising one or more user equipments (UEs). The method also includes assigning the user groups to the subpanels. The method also includes transmitting to the UEs via the subpanels, wherein each user group is served by one subpanel of the multiple subpanels.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit one or more indications, wherein at least one of the one or more indications indicates a latency associated with switching a spatial direction of an antenna. The UE may receive a configuration. The UE may transmit or receive a communication in accordance with the configuration and the one or more indications. Numerous other aspects are described.

A system includes one or more ultra-wideband (UWB) transmit apparatuses configured to communicate an UWB signal that encodes radio packets that includes at least a preamble and a start frame delimiter (SFD) enabling a receiver to recover a reception timestamp and a channel impulse response (CIR) of the transmission, wherein the one or more UWB transmit apparatuses are located in a fixed position and configured to divide a space into a plurality of subspaces configured to be assigned an attribute associated with the subspaces, including one or more UWB receivers configured to extract CIR information from the one or more radio packets received from a UWB transceiver, and trigger an event in response to a determination of the receiver being either located in one of a plurality of subspaces, or leaving or entering the one of the plurality of subspaces, wherein the determination is made utilizing at least the CIR information.

A sequence distributing and sequence processing method and apparatus in a communication system are provided. The sequence distributing method includes the following steps of: generating sequence groups comprising a number of sequences, the sequences in the sequence groups are determined according to the sequence time frequency resource occupation manner which is supported by the system; distributing the sequence groups to cells. The method avoids the phenomenon that signaling transmission is needed to distribute the sequences to the cells for different time frequency resource occupation manner, and saves in so far as possible the wireless network transmission resource occupied during the process of distributing the sequences through distributing the sequence groups comprising a number of sequences to the cells.

A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.

The present disclosure provides an electronic device, including: an input unit configured to obtain a sequence to be compressed, wherein the sequence to be compressed has Q time-domain symbol elements, and Q is an integer greater than zero; a processing unit configured to perform a zero-padding operation on the sequence to be compressed according to at least a part of a compression factor to determine a zero-embedded sequence, perform a discrete Fourier transform spreading operation according to the zero-embedded sequence to determine a spread sequence, and perform at least one of a data deletion operation and a data superimposition operation based on the spread sequence to determine a compressed sequence, wherein the compressed sequence has M frequency-domain symbols, M is an integer greater than zero, and M is less than or equal to Q.

In an aspect, a user equipment may receive assistance information for one or more index modulated sensing waveforms. The user equipment may receive index modulated sensing signals, the index modulated sensing signals based on the one or more index modulated sensing waveforms. The user equipment may process the index modulated sensing signals using at least some of the assistance information.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may monitor for a first beam failure detection (BFD) reference signal (RS) and a second BFD RS, wherein the first BFD RS is associated with a first transmission configuration indicator (TCI) state and the second BFD RS is associated with a second TCI state, and wherein the first BFD RS and the second BFD RS are associated with one or more physical downlink control channels (PDCCHs). The UE may determine whether a beam failure has occurred with the one or more PDCCHs based at least in part on a result of monitoring for the first BFD RS and the second BFD RS. Numerous other aspects are described.

This application provides a signal transmission method and an apparatus. The method includes: determining a first frequency domain resource in a sidelink resource pool, and sending a first signal through the first frequency domain resource. A bandwidth of the first frequency domain resource is equal to a maximum available bandwidth of the sidelink resource pool; and the first signal is located in a 1st symbol of a first time unit in time domain, where a signal in the 1st symbol is used for automatic gain control, and the first signal is used for sensing measurement on a sidelink. According to the method provided in this application, a first terminal device sends, in the 1st symbol of the first time unit, the first signal used for the sensing measurement, and the first signal may further keep an original function unchanged, that is, the first signal is used for the automatic gain control, so that the sensing measurement is implemented through the first signal without causing a loss to communication performance, and integrated sensing and communication on the sidelink is enabled.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that indicates an orthogonal cover coding (OCC) codeword assigned to the UE and an OCC factor. The UE may receive an uplink grant that allocates, to the UE, uplink resources over a series of uplink time units for a quantity of repetitions of a transmission block. The UE may subsequently use the assigned OCC codeword to transmit each repetition of the quantity of repetitions of the transmission block over a quantity of uplink time units of the series of uplink time units, where a function of the quantity of uplink time units and the quantity of repetitions satisfies a threshold, and where the quantity of uplink time units is greater than or equal to the OCC factor.

A user equipment comprises: means for determining at least one preferred beam for communication between the user equipment and a network node to be used in preference to a beam measured by the user equipment to have a highest quality; and means for reporting an indication of the at least one preferred beam to the network node.

The present application relates to a method for optimizing the operation of a receiving device in a communication network, comprising: at least one iteration: of obtaining (21), over a time interval, a power measurement information I Pr of a wave resulting from signals received by the receiving device, a first of the signals being emitted by a transmitting device, a second of the signals being obtained by reflection of the first signal emitted by the transmitting device on a reconfigurable reflective surface and at least a third of the signals being formed by a conditional backscattering of the first signal and / or the second signal by a backscattering device and carrying a synchronization information; of determining (22), from the power measurement information obtained, a spatial distribution of the powers;an optimization (23) of the operation of the receiving device including an adaptation of the spatial distribution of powers taking into account the synchronization information. Fig 2.;

A method includes obtaining elevation angle information for a plurality of user devices, wherein the elevation angle information includes, for each of the plurality of user devices, a best or preferred beam elevation angle used or applied by a network node for communication with the user device; estimating an elevation angle distribution for the plurality of user devices based on the collected elevation angle information; determining, based on the elevation angle distribution, a set of analog beamforming weights to be used for hybrid beamforming, wherein each analog beamforming weight of the set of analog beamforming weights is associated with an analog elevation angle; and adjusting the set of analog beamforming weights based on at least one of a set of pre-tilt angle beamforming weights or an estimated (or an estimate of) mechanical downtilt angle.

A communication system is disclosed. The communication system includes an active antenna set and a passive antenna set. The active antenna set includes at least one active antenna array, the at least one active antenna array is configured to transmit a first signal through at least one active beam group, and the at least one active beam group covers a first coverage area with a first coverage angle. The passive antenna set includes at least one passive antenna subset, the at least one passive antenna subset is configured to transmit a second signal through at least one passive beam group, and the at least one passive beam group covers a second coverage area with a second coverage angle. The first coverage area and the second coverage area do not overlap.

The embodiments of the present application relate to the technical field of communications. Disclosed are a user scheduling method in multi-antenna signal transmission, and an electronic device and a storage medium. The method comprises: acquiring channel information of channels that are used by a plurality of users, and according to the channel information of the channels that are used by the users, constructing a channel information covariance corresponding to each user; calculating a correlation coefficient between every two users according to the channel information covariance of each user; and selecting a scheduled user on the basis of the number of scheduled users and the correlation coefficient between every two users.

A communication apparatus includes: one or more memory devices configured to store information indicating a first base set including a first base sequence to an N-th base sequence; and one or more processors configured to: generate a first shift sequence to an N-th shift sequence by determining a shift amount based on transmission data, and cyclic shifting an n-th base sequence (n being an integer from 1 to N) by the shift amount; and transmit the n-th shift sequence, wherein the n-th base sequence satisfy a first condition of: a total across the first base sequence to the N-th base sequence of correlation values of autocorrelation is not 0 when a shift amount is 0, and is 0 when a shift amount is different from 0 used in data transmission.

This communication device comprises: a storage means for storing information indicating a first basic set including a first basic sequence to an Nth basic sequence; a shifting means for generating a first shift sequence to an Nth shift sequence by determining a shift amount on the basis of transmission data and cyclically shifting the nth basic sequence (n is an integer from 1 to N) by the shift amount; a holding means for holding timing information indicating transmission timing of the series; and a transmitting means for transmitting each shift sequence according to the timing information, wherein the first basic sequence to the Nth basic sequence satisfy a first condition that the sum of the correlation values of autocorrelation from the first basic sequence to the Nth basic sequence when the shift amount is 0 is different from 0, and the sum of correlation values of autocorrelation from the first basic sequence to the Nth basic sequence with the shift amount different from 0 used for data transmission is 0.

A method for determining a default beam, includes: determining one or multiple transmission configuration indication (TCI) states corresponding to a specific physical downlink control channel (PDCCH); and determining the default beam according to the one or multiple TCI states.