786results about "Baseband systems" patented technology

A transmission method and apparatus, a device, and a readable storage medium are disclosed. The method includes: sending, by a terminal, information for determining a position of a valid orthogonal basis and a coefficient of the valid orthogonal basis to a network side; wherein the information for determining the position of the valid orthogonal basis comprises at most two of spatial domain orthogonal basis, bitmap, or delay position. The method further comprises: receiving, by the terminal, first indication information that indicates the terminal not to send the spatial domain orthogonal basis and the delay position; sending the information for determining the position of the valid orthogonal basis to the network side comprises: sending the information for determining the position of the valid orthogonal basis to the network side, wherein the information does not comprise the bitmap, the delay position, and the spatial domain orthogonal basis.

Methods, systems, and devices for wireless communications are described. A remote unit (RU) may transmit, to a distributed unit (DU), an indication of a skew time parameter associated with providing compensated samples for a plurality of symbols associated with a slot. The RU may store a set of samples associated with a first subset of the plurality of symbols associated with the slot, the storing based on a processing delay associated with receiving demodulation reference signals during a portion of the first subset of the plurality of symbols associated with the slot. The RU may transmit, to the DU, a burst of compensated samples for the plurality of symbols in a transmission window that is offset in time from a beginning symbol of the slot according to the skew time parameter.

One or more systems, devices, and / or methods may address signal design for ultra-low power receivers. Transmitter and receiver architectures capable of generating signals and waveforms supporting the operation of ultra-low-power receivers and compatible with OFDM-based signals are disclosed. In some cases, there may be procedures that address one or more of the following: device detection of an on-off keying (OOK) modulated sequence with redundant bits corresponding to OFDM symbols' cyclic prefix; device detection of an OOK modulated sequence with dynamic bit duration corresponding to long and short OFDM symbols; device reception of an OOK modulated DCI / message with redundant bits corresponding to OFDM symbols' cyclic prefix; and / or, device reception of an OOK modulated DCI / message with dynamic bit duration corresponding to long and short OFDM symbols.

Disclosed is a windowing method for OTFS-based wireless signals to mitigate interference due to fractional delay and Doppler cases and to control out-of-band emission. The method provides for suitable windowing mechanisms for the multicarrier orthogonal time frequency space (OTFS) scheme in order to manage out-of-band emission and interference due to the limited time and frequency resolution of the OTFS frame.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a control signal configuring a low-density pattern for channel state information (CSI) reference signal (RS) reception for a set of multiple antenna ports. The low-density pattern may indicate a subset of the set of multiple antenna ports for the CSI-RS reception via one or more resource blocks (RBs). The UE may receive a set of multiple CSI-RSs that is based on the low-density pattern. In some cases, the UE, or some other training device, may train an artificial neural network to process the CSI-RSs according to the low-density pattern. The artificial neural network may be an example of a generalized neural network or a neural network specific to one or more low-density patterns. The UE may transmit a CSI report based on processing the CSI-RSs according to the low-density pattern.

The embodiment of the invention provides a multi-tone signal sending method and device. The method comprises the steps that a first multi-tone signal is generated, the first multi-tone signal comprises N single-tone signals, the amplitude value of each single-tone signal is the same, the initial phases of at least two single-tone signals in the N single-tone signals are the same, or the absolute values of the initial phases of at least two single-tone signals in the N single-tone signals are the same, and N is an integer larger than or equal to 2; and sending the first multi-tone signal. According to the method disclosed by the invention, the average power of multi-tone signal transmission can be improved, and the transmission distance or the coverage range of the multi-tone signal can be further improved.

A system includes: an inverter configured to convert DC power to AC power, wherein the inverter includes: a power module including: a first substrate, a second substrate including a source plane and a gate plane separated from the source plane by a full trench, the source plane including a step trench, and the gate plane including an electrical connection through the second substrate to a gate input connection of the power module, a semiconductor die disposed between the first substrate and the second substrate, the step trench formed in a portion of the source plane corresponding to an edge of the semiconductor die, and the semiconductor die including a gate connected to the gate plane, and a sinter element disposed between the semiconductor die and the second substrate to connect the semiconductor die to the second substrate; a battery; and a motor.

According to an aspect, an apparatus may receive at least one uplink pilot associated with a receiver comprising at least one digital beamforming, DBF, -panel and at least one subarray-based beamforming, SABBF, -panel, the at least one DBF-panel having an associated DBF-channel and the at least one SABBF-panel having an associated SABBF-channel. Furthermore, based on channel distributions of the DBF-channel and the SABFF-channel and further based on the at least one uplink pilot, the apparatus may determine at least one estimated strongest direction of a common covariance matrix associated with the at least one DBF-panel and the at least one SABBF-panel. Finally, the apparatus may determine a beamforming vector for at least one transmission phase or at least one reception phase based on the at least one estimated strongest direction of the common covariance matrix.

Aspects are provided that allow a UE to perform DMRS bundling in PUSCH repetitions in response to a configuration from a base station indicating or enabling the UE to perform the DMRS bundling. The UE receives a configuration from a base station indicating to bundle DMRS in repetitions of an uplink data channel transmission for joint channel estimation. The UE determines a DMRS bundling window based on the configuration. The UE transmits the bundled DMRS in the DMRS bundling window. The base station performs the joint channel estimation based on the bundled DMRS. Improved link quality between the UE and base station and signal gains may accordingly result from applying DMRS bundling over multiple repetitions of PUSCH transmissions.

One example discloses a communications circuit, including: a buffer having a buffer input and a buffer output; wherein the buffer includes a first path and a second path; wherein the first path includes, a first resistor coupled to the buffer input; a second resistor coupled to the buffer output; a current source having a first end and a second end; wherein the first resistor and the second resistor are coupled to a mid-point; wherein the first end of the current source is coupled to the mid-point; and wherein the second path includes a capacitor having a first end coupled to the buffer input and a second end coupled to the buffer output.

A wireless transmit / receive unit (WTRU) and a network (NW) may perform end-to-end training of an artificial intelligence (AI) or machine learning (ML) model for channel state information (CSI) feedback. The NW may generate training data for the training using a set of one or more seed values. The WTRU may be aware of the seed values and may use them to generate ground truth data, which can be used to determine the value of an end-to-end error and / or loss function. The WTRU and the NW may compute or approximate derivatives of the loss function and may send one another the derivatives. The WTRU and the NW may utilize the derivatives to update one or more AI or ML models.

The embodiment of the invention provides a communication method and a related device. The method comprises the following steps: sending first information indicating a first group of reference channels related to a first environment parameter set to user equipment; and sending second information related to the first environment parameter set to the user equipment, wherein the second information is used for determining one or more reference channels from the first group of reference channels. In the application, a central device can inform a user equipment of which environment parameter set is related by sending the second information, and help the user equipment determine at least one reference channel from a group of reference channels related to the environment parameter set indicated by the second information. According to the technical scheme, the validity of the reference channel which comes from the user equipment and is influenced by the environment parameter set can be ensured. Furthermore, the central device can determine the information related to the first DL channel without sending the channel measurement of the first DL channel, which can solve the problem of large signaling overhead caused by sending the channel measurement.

Aspects presented herein may enable a wireless device (e.g., a user equipment (UE), a base station / transmission reception point (TRP), etc.) to indicate measurement processing done by the wireless device using indexing / brief information when reporting measurements for artificial intelligence (AI) or machine learning (ML) (AI / ML) model input without revealing confidential / proprietary information, thereby ensuring a consistency between AI / ML positioning models and other reporting entities / nodes as well as a consistency between training and inference for a given AI / ML positioning model. In one aspect, a wireless device processes a set of reference signal (RS) measurements based on a set of processing parameters to obtain a time-domain channel response associated with the set of RS measurements. The wireless device transmits, to a network entity, the time-domain channel response and an index indicative of the set of processing parameters.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a method and a base station (100) for managing sounding reference signal (SRS) transmission in a wireless communication. The method includes receiving the SRS transmitted from a group of user equipments (UEs) (200a-200d) in the wireless communication over same time-frequency resource. The method also determines the transmission variant by decoding the SRS. Further, the method includes performing one of: estimating at least one channel of receiving the SRS from each UE of the group of UEs (200a-200d) in the slot using a first receiver when the transmission variant is one of the C-CDM-C-CS variant or the V-CDM-C-CS variant, and estimating at least one channel of receiving the SRS from each UE of the group of UEs (200a-200d) in the slot using a second receiver when the transmission variant is one of the C-CDM-C-CS variant or the C-CDM-V-CS variant.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate using demodulation reference signal enhancements for control channel repetitions. The UE and the base station may identify a configuration to use to receive or transmit a set of repetitions of control information on a downlink control channel, each repetition of the set of repetitions including one or more symbol periods for an instance of the repeated control information. The base station may transmit, and the UE may receive, a first set of demodulation reference signals in accordance with a first set of parameter values, a second set of demodulation reference signals in accordance with a second set of parameter values, and instances of the control information during the set of repetitions. The UE may decode the control information based on the received signals and configuration.

Embodiments of the present disclosure relate to methods, devices, and computer readable medium for communication. A time domain channel properties (TDCP) is transmitted from a terminal device to a network device. The set of parameters comprises at last one of: a maximum doppler shift, a doppler spread, a coherence time, a speed of the terminal device, correlation information on a plurality of time intervals among resources or resource sets for the TDCP report, an indication of the plurality of time intervals corresponding to a plurality of correlation values, or a unit of time interval. At least one of a value range, a step size or a number of bits for a first parameter from the set of parameters is based on at least one of a value of or a value range for a second parameter from the set of parameters. In this way, the information of channel properties can be designed and reported in the TDCP report. And in this way, the payload of the TDCP report may be reduced, thereby saving transmission resources for the TDCP report.

This application discloses a code block processing method, apparatus, device, and readable storage medium, relating to the field of communication technology, to ensure the reliability of MTN networks. The method includes: if an MTN channel code block carrying an fgMTN channel is incorrectly marked, or the code block contains an invalid synchronization header, or the code block is a control code block with an invalid type field, or the code block is an erroneous code block, replacing the fgMTN channel code block carried within the MTN channel code block with the erroneous code block. Embodiments of this application can ensure the reliability of MTN networks.

a communications system comprising a laser generation system configured to emit a set of laser beams; a computer system; and a communications manager in the computer system. The communications manager is configured to identify digital information for transmission. The communications manager is configured to control an emission of the set of laser beams by the laser generation system to generate electromagnetic radiation at positions in a space with motions between the positions, with the positions and the motions between the positions thereby encoding the digital information.

The present disclosure relates to a machine learning (ML)-based receiver that is computationally efficient, irrespective of a number NR of receiver antennas used in a Multiple Input Multiple Output (MIMO) scenario. To achieve this, the ML-based receiver is configured to obtain a modified matrix and a modified array of symbols based on a channel state information (CSI) matrix and a received array of symbols. The modified matrix has a dimension NT×NT, where NT is a number of MIMO layers. The modified array of symbols has a dimension NT. After that the ML-based receiver is configured to restore a transmitted array of symbols from the received array of symbols by applying a pre-trained ML model that receives the modified matrix and the modified array of symbols as input data and outputs a set of bit log-likelihood ratio (LLR) estimates for the transmitted array of symbols.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via time-frequency resources using multiple spatial layers, a plurality of code block parts associated with a codeword, where code block parts corresponding to the same code blocks are each offset in different time-frequency resources, where one or more first code block parts are initializing code block parts associated with first decoding characteristics that are different than second decoding characteristics with which one or more second code block parts are associated. The UE may decode, based on the first decoding characteristics and the second decoding characteristics, the one or more first code block parts and the one or more second code block parts.

Embodiments of this application provide a communication method. The method includes: generating a first reference signal, where the first reference signal is two-dimensional orthogonal to a second reference signal, the second reference signal is a reference signal obtained after delay τ transform and Doppler frequency shift ν transform are performed on the first reference signal in a communication process, 0≤τ≤τmax, 0≤|ν|≤νmax, τ≠0 or ν≠0,τmax is a first threshold, νmax is a second threshold, and |x| represents an absolute value of x; and transmitting the first reference signal.

Provided are a client signal transmission method, apparatus and system and a computer-readable storage medium. The method includes mapping a client signal into a predetermined container corresponding to the client signal; mapping the predetermined container into the corresponding number of first code blocks in a payload area of an optical transport network frame and inserting special idle code blocks during the mapping for rate compensation, where the first code blocks are obtained by dividing the payload area of the optical transport network frame; and sending the optical transport network frame carrying the predetermined container and configuration information of the predetermined container.

A management system may receive a wireless signal transmitted to a receiver. The management system may determine, based on the wireless signal or a set of decoded bits associated with the wireless signal that were determined using an artificial intelligence (AI) receiver module of the receiver, whether a cyclic redundancy check (CRC) associated with the wireless signal is passed. The management system may perform, based on determining whether the CRC associated with the wireless signal is passed, at least one of: a data storage operation associated with the wireless signal, a fallback operation associated with the wireless signal, or an online label recovery operation associated with the wireless signal. The management system may perform, based on determining whether the CRC associated with the wireless signal is passed, a model modification operation to update a neural network (NN) of the AI receiver module of the receiver.

The embodiments of the present disclosure relate to a transmitting device and a transmitting method for a radio frequency interface, a receiving device and a receiving method for a radio frequency interface, and a chip. [Solution] The radio frequency interface transmitter includes a transmission controller having a traffic data interleaving means, a delay adjustment amount determining means, and a framer means. The traffic data interleaving means is configured to serially interleave data of a plurality of data channels based on a current interleaving pattern to form interleaved data including one or more periods. The delay adjustment amount determining means is configured to determine a delay adjustment amount for each data channel corresponding to the current interleaving pattern. The framer means is configured to form a traffic frame based on the interleaved data, and the framer means is further configured to form a management frame.

A receiver circuit includes a feedback loop (390, 391, 392) including a device. The receiver circuit also includes a register and a sequencer (340). The sequencer (340) is configured to cause the register to store a value indicative of a state of the feedback loop in response to an error signal being below a threshold. The sequencer (340) is also configured to cause the feedback loop to transition to a lower power state and, in response to a detected wake-up event, cause the previously stored value indicative of the state of the feedback loop (390, 391, 392) to be loaded from the register into the device and enable the feedback loop.

Embodiments of the present application provide a method and an apparatus for communications. In the present application, a new concept of "reference channel" is proposed. A receiving apparatus obtains common information and receives information of K reference channel (s) from a transmitting apparatus. The common information is used for determining information of a downlink (DL) channel between the transmitting apparatus and the receiving apparatus, and the K reference channel (s) is related to an environment parameter set. The receiving apparatus transmits feedback information based on the common information and the information of the K reference channel (s), and the feedback information includes the information of the DL channel. The feedback information is no longer a channel estimation result itself but information of a reference channel that may be a representative of the DL channel. In this way, channel estimation of a DL channel may not be an absolute estimation but a relative estimation, and the receiving apparatus may report relative estimation information instead of absolute estimation information of the DL channel. The relative estimation and feedback of the relative estimation information make the receiving apparatus estimate and report information of the DL channel with a reasonable overhead in a MIMO system.

A system includes: an inverter configured to convert DC power to AC power, wherein the inverter includes: a power module including: a first substrate, a second substrate including a source plane and a gate plane separated from the source plane by a full trench, the source plane including a step trench, and the gate plane including an electrical connection through the second substrate to a gate input connection of the power module, a semiconductor die disposed between the first substrate and the second substrate, the step trench formed in a portion of the source plane corresponding to an edge of the semiconductor die, and the semiconductor die including a gate connected to the gate plane, and a sinter element disposed between the semiconductor die and the second substrate to connect the semiconductor die to the second substrate; a battery; and a motor.

This provides a configuration that allows the UE to perform DMRS bundling in PUCCH repetitions in response to an instruction from the base station. The UE receives an instruction from the base station to perform the configuration of bundling DMRS in repetitions of uplink control channel transmissions. The UE determines the DMRS bundling window based on the configuration. The UE transmits the bundled DMRS within the DMRS bundling window. The base station processes the bundled DMRS. Improved link quality and signal gain between the UE and the base station can be achieved by applying DMRS bundling accordingly through multiple repetitions of PUCCH transmissions.

The present disclosure provides signal management with unequal eye spacing by: determining a dispersion slope of a channel between a transmitter and a receiver based on a temperature of the transmitter and a wavelength used by the transmitter to transmit signals over the channel; determining maximum and minimum powers for transmission over the channel; assigning a plurality of rails to a corresponding plurality of power levels, wherein amplitude differences between adjacent rails of the plurality of rails are based on the dispersion slope and produce a first eye pattern with a first Ratio of Level Mismatch (RLM) less than one; encoding, by the transmitter, data onto a conditioned signal according to the plurality of rails; and transmitting the conditioned signal over the channel, so that the conditioned signal demonstrates a second eye pattern with a second RLM greater than the first RLM when received at the receiver.

A method and apparatus for wireless communication between a base station and a user equipment are provided. A base station apparatus includes a transceiver and a processor configured to transmit, via the transceiver, a control message configured for a user equipment to the user equipment and receive, via the transceiver, a sounding reference signal (SRS) from the user equipment based on the control message. The control message indicates a trigger time slot offset and an available time slot for SRS transmission to the user equipment.