1518results about "Baseband systems" patented technology

Disclosed are techniques for wireless communication. In an aspect, a reconfigurable intelligent surface (RIS) transmits a sounding reference signal (SRS) transmission request message to a base station serving a user equipment (UE), the SRS transmission request message including one or more SRS transmission properties to be used by the base station to configure the UE to transmit SRS, receives a response message from the base station, the response message indicating one or more SRS configurations the UE is configured to use to transmit SRS, the one or more SRS configurations based on the one or more SRS transmission properties, and measures a plurality of SRS transmissions from the UE with a plurality of receive beams to determine a best receive beam for receiving uplink transmissions from the UE, wherein the plurality of SRS transmissions is based on at least one SRS configuration of the one or more SRS configurations.

Methods and apparatus for leveraging transfer learning of one Wireless Transmit / Receive Unit (WTRU) to benefit another WTRU are provided. One method may include the WTRU receiving AI / ML model configuration information indicating one or more AI / ML models available from the network node, a profile associated with the AI / ML models, and a training convergence threshold. Based at least on the profile(s), the WTRU determining that the one or more AI / ML models are not suitable for use by the WTRU, and sending first information indicating that the one or more AI / ML models are not suitable for the WTRU and / or that the WTRU will be training a local AI / ML model. The method may then include training the local AI / ML model according to the convergence threshold, receiving a request to transfer AI / ML model parameters, and sending an indication of the AI / ML model parameters associated with the trained local AI / ML model to the network node.

Methods and apparatuses for PT-RS enhancement are disclosed. In one embodiment, a UE comprises a transceiver; and a processor coupled to the transceiver, wherein the processor is configured to receive, via the transceiver, a configuration to transmit 2 or 4 PT-RS ports when 4 antenna ports codebook based PUSCH transmission is configured; and determine the mapping between PUSCH antenna ports and the PT-RS ports.

This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for base station-assisted UE antenna port selection. A user equipment (UE) transmits, to a base station, a sounding reference signal (SRS) switching capability report (e.g., a xTyR report) indicating to the base station a number of receive antenna ports configured for the UE. (e.g., capability to transmit on x antenna ports and reception over a total of y antenna ports). The UE transmits an SRS to the base station sounding the y antenna ports. The base station selects and indicates y′ antenna ports out of the y antenna ports for the UE to receive a subsequent downlink data transmission based on a channel estimation based on the SRS transmission, or based on channel state feedback (CSF). In aspects, the UE provides a recommendation of y′, and the base station may determine y′ based on the UE's recommendation.

Systems and methods for network power savings attendant to the performance of channel state information (CSI) reporting are disclosed herein. A base station may configure multiple periodic CSI (P-CSI) report configurations to a UE, and then dynamically indicate to the UE which of the P-CSI report configurations is to be used. A base station may configure a CSI report (e.g., a P-CSI report configuration and / or an aperiodic CSI (A-CSI) configuration) having multiple sub-configurations to a UE, and then dynamically indicate to the UE which of the sub-configurations is to be used. A base station may configure an M-bit CSI-RS bitmap indicating a set of active CSI-reference signal (CSI-RS) ports at the base station, such that the UE may perform CSI measurement using those CSI-RS ports in an expected manner.

An apparatus may include a receiver configured to receive a reference signal using a channel, a transmitter configured to transmit a representation relating to the channel, and a processing circuit configured to determine channel information based on the reference signal, generate, using a model, the representation based on the channel information, and transfer, using the receiver or the transmitter, model information to specify the model. The model information may include an identifier for the model. The model information may include structure information for the model. The model information may include information about a type of input for the model. The model information may include information about a format of input for the model. The model information may include mapping information for mapping channel information to an input of the model. The mapping information may include information for a first subband, and information for a second subband.

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.

A system and method for handling acknowledgments in a wireless system. In some embodiments, the method includes, receiving, by a User Equipment (UE), one or more first transmissions; decoding, by the UE, the first transmissions, to generate a first sub-codebook including one or more corresponding Hybrid Automatic Repeat Request Acknowledgement (HARQ ACK) bit strings each having a first length; receiving, by the UE, one or more second transmissions; decoding, by the UE, the second transmissions, to generate a second sub-codebook including one or more corresponding HARQ ACK bit strings each having a second length, greater than the first length; receiving, by the UE, one or more third transmissions; and decoding, by the UE, the third transmissions, to generate a third sub-codebook including one or more corresponding HARQ ACK bit strings each having a third length, greater than the second length.

Certain aspects of the present disclosure generally relate to methods and apparatus for minimum scheduling delay signaling.

A system includes: an inverter, wherein the inverter includes: a power module including: a flex layer including a gate trace, 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 gate trace of the flex layer 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 at 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.

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.

Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (Timing Advance, TA) by a terminal, and reduce inter-symbol interference (Inter-Symbol Interference, ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.

A wireless transmit / receive unit (WTRU) may receive configuration information for channel state information (CSI) prediction and compression. The WTRU may measure a CSI prediction error and / or a CSI compression error, for example to obtain a total combined CSI error. The total combined CSI error may include the sum of the CSI prediction error and the CSI compression error. The WTRU may determine a CSI error condition type, for example based on the total combined CSI error. The CSI error condition type may include one or more of a CSI prediction limited condition type, a CSI compression limited condition type, and / or a combined CSI prediction and compression limited condition type. The WTRU may send a message, for example to a network and / or a network entity. The message may include an indication of the determined CSI error condition type.

Some embodiments are directed towards a multiple-input multiple-output (MIMO) receiver system for use with N antennas. The receiver system includes: an analog combiner assembly comprising a matrix of vector modulators applying gain and phase shift to each of N signals being received from the respective antenna and combine said N signals into P corresponding signals, P<N; an array of ADC units, each performing quantization of a respective one of said P corresponding signals with a predetermined bit constrain; and a signal recovery system. The signal recovery system can include a digital signal processor performing task-specific recovery of selected K signals, arriving on the antennas in predetermined input directions, from quantized and filtered digital representation of the N signals being received by the analog combiner assembly; and a control unit. The control unit is adapted to utilize optimized operational data to operate the analog combiner and the digital signal processor.

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.

A semiconductor device is provided. The semiconductor device includes: an equalizer circuit configured to output a first control signal corresponding to a first bit of original two-bit data and a second control signal corresponding to a second bit of the original two-bit data; and a driver circuit including a plurality of pull-up transistors connected between an output node and a first power node configured to provide a first power supply voltage, and a plurality of pull-down transistors connected between the output node and a second power node configured to provide a second power supply voltage, wherein the second power supply voltage is lower than the first power supply voltage, and the driver circuit is connected to the equalizer circuit in series. The plurality of pull-up transistors includes a first pull-up transistor and a second pull-up transistor connected to each other in parallel, between the first power node and the output node, and a third pull-up transistor and a fourth pull-up transistor connected to each other in series, between the first power node and the output node.

A method for determining a sidelink transmission resource, a terminal device, and a network device are provided. The method includes determining a third transmission resource that includes a transmission resource for transmitting a physical sidelink shared channel (PSSCH), and determining a second transmission resource in the third transmission resource. The second transmission resource includes a time-domain resource the same as and / or adjacent to a time-domain resource for a demodulation reference signal (DMRS) of the PSSCH. The second transmission resource is used for transmitting second sidelink control information (SCI). The third transmission resource further includes a first transmission resource for transmitting first SCI.

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.

Aspects of the present application relate to a state-based sensing signal design. Aspects of the present application also relate to employing the state-based sensing signal design in the context of an integrated communication and sensing system. Using the state-based sensing signal design, a sensing state of a sensing transmitting node may be embedded in the sensing signal. At a sensing receiving node, a received sensing signal may be processed to extract the embedded sensing state of the sensing transmitting node.

Systems and devices are provided for receiving or transmitting IQ data (e.g., suitable for passband quadrature amplitude modulation (QAM)) over a wireline using pairs of baseband pulse amplitude modulation (PAM-n) signals. Encoding circuitry may map data from an input bit stream to IQ data that includes an in-phase component and a quadrature-phase component. Modulator circuitry may determine an in-phase PAM-n signal based on the in-phase component and a quadrature-phase PAM-n signal based on the quadrature-phase component. Driver circuitry may transmit the in-phase PAM-n signal and the quadrature-phase PAM-n signal across a wireline channel. The in-phase PAM-n signal may be different by 90° from the quadrature-phase PAM-n signal. This may enable a remote receiver on the wireline channel to detect the in-phase PAM-n signal independently of the quadrature-phase PAM-n signal.

This application discloses a sensing method, a sensing apparatus, a communication device, and a storage medium, and pertains to the field of communication technologies. The sensing method in embodiments of this application includes: sending, by a first device, first information, where the first information is random phase-related information of the first device, and the first device is a terminal; receiving, by the first device, sensing configuration information, where the sensing configuration information is determined based on the first information; and sending, by the first device, a first signal to a second device based on the sensing configuration information, where the first signal is a signal related to a sensing service or an integrated sensing and communication service, and the second device is a terminal or a network side device.

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.

New mechanisms for channel measurement and interference measurement between an aggressor and victim wireless includes transmitting a set of Reference Signals (RS) to a victim wireless device including M RS resources, wherein M is an integer larger than 1, and wherein an ith individual RS resource of the M RS resources includes Pi RS ports, wherein i is an integer and 1≤i≤M, and wherein Pi is an integer and Pi≥1. The method may include receiving a measurement report regarding the RS including a Precoding Matrix Indicator (PMI) report and a phase offset report. In another embodiment, a method includes indicating a RS configuration and a Cross Link Interference (CLI) measurement resource configuration, wherein each RS includes an aggressor ID, and wherein the CLI measurement resource configuration associates each one of the RS with CLI measurement resources. The method may also include transmitting the RS according to the RS configuration.

A method for controlling a reconfigurable intelligence surface (RIS) to transmit a reference signal, performed by the RIS, includes: sending indication information to a network device, wherein the indication information is used to indicate capability information of transmitting the reference signal of the RIS; receiving control information sent by the network device, wherein the control information is used to control the RIS to transmit the reference signal; and transmitting the reference signal according to the control information sent by the network device.

The present disclosure is an open-loop digital PWM envelope tracking system with dynamic boost function. Systems, apparatuses, and methods are described for dynamically boosting (increasing) the supply voltage of an envelope tracking (ET) modulator in a transmitter system when the target / desired PA supply voltage exceeds a pre-determined threshold (e.g., the pre-determined threshold is equal to the available supply voltage of the system, such as the battery voltage). By boosting the supply voltage input to the ET modulator, the modulated supply provided to the power amplifier (PA) is also increased. As such, voltage clipping, which typically occurs when the target / desired PA supply voltage is higher than the available supply voltage, is mitigated or avoided, and the distortion of the transmitted signal is reduced.

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.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure provides a method performed by a user equipment (UE), the method comprises receiving, from a base station, data in a slot including a first signal transmission section and a second signal transmission section, identifying whether the received data includes a first data in the first signal transmission section for self-interference channel estimation of the base station, in case that the received data includes a first data in the first signal transmission section, decoding the first data using a first transmission scheme for the first signal transmission section, and in case that the data includes a second data in the second signal transmission section, decoding the second data using a second transmission scheme for the second signal transmission section.