2962results about "Baseband systems" patented technology

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products includes measuring Channel State Information (CSI) associated with at least one reference signal and determining a trained Artificial Intelligence (AI) model to generate at least a portion of a report that includes the CSI associated with the at least one reference signal. The report comprising the CSI associated with the at least one reference signal is transmitted.

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.

Providing channel state information, CSI, in a wireless communications network by a first node to a second node. The first node has access to one or more trained Neural Network, NN,-based Auto Encoder, AE,-encoder models for encoding the CSI and the second node has access to one or more trained NN-based AE-decoder models for decoding the CSI provided by the first node. The method includes receiving, from the second node, an indication of an NN-based AE-decoder model out of the one or more trained models; selecting a trained model out of the one or more trained models to use for the NN-based AE-encoder based on the received indication of the NN-based AE-decoder model such that the selected trained model is compatible with the indicated NN-based AE-decoder model; and transmitting (604) the CSI to the second node based on output from the selected trained model.

Disclosed are a method and a device for transmitting or receiving an uplink channel on the basis of demodulation reference signal (DMRS) bundling in a wireless communication system. A method by which a terminal transmits an uplink channel in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: receiving configuration information related to the DMRS bundling for the uplink channel from a network; and transmitting the uplink channel to the network in a first actual time domain window (TDW) within a set TDW or in the first actual TDW and a second actual TDW within the set TDW, wherein the first actual TDW ends in relation to an event, and whether to generate the second actual TDW in response to the event may be based on capabilities of the terminal, on the basis of the event being a first type event.

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.

Accordingly, there are disclosed herein receivers and receiving methods that provide a graceful transition from PAM2 to PAM4 signaling. One illustrative method includes: negotiating a link speed having PAM4 signaling; performing adaption of at least one gain or filter coefficient during PAM2 signaling; switching to PAM4 detection before receiving PAM4 signaling; disabling said adaptation before said switching to PAM4 detection; detecting PAM4 signaling using at least one statistic of detected PAM4 symbols; and enabling said adaptation after PAM4 signaling is detected. Another illustrative method includes: negotiating a link speed having PAM4 signaling; adapting at least one of gain and filter coefficients during PAM2 signaling; monitoring for a change in at least one signal characteristic while performing PAM2 detection; and transitioning to PAM4 detection after detecting said change.

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a base station. The base station receives a sounding reference signal (SRS) from a user equipment (UE). The base station estimates an uplink (UL) channel state information (CSI) based on the received SRS. The base station monitors the estimated UL CSI to track changes. The base station determines whether to update or switch an artificial intelligence (AI) / machine learning (ML) model used for downlink (DL) CSI compression based on the monitoring of the estimated UL CSI.

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. In particular, a problem that data transmission performance deteriorates because channel information expires in a moving scenario can be resolved by feeding back the predicted channel information.

A receiver circuit is configured to generate a reception symbol from a multi-level signal. The receiver circuit is configured to generate three compensation signal pairs from an input signal pair to perform a loop unrolled decision feedback equalization operation. A first summing circuit is configured to equalize the input signal pair with a first offset to generate a first compensation signal pair, and a second summing circuit is configured to equalize the input signal pair with a second offset to generate a second compensation signal pair. An averaging circuit is configured to average the first compensation signal pair and the second compensation signal pair to generate a third compensation signal pair.

A user equipment (UE) is configured for supporting positioning using sounding reference signal (SRS) periodic burst transmissions that includes a plurality of sets of SRS transmissions, where each set of SRS transmissions includes a repetition of SRS resources. The configuration for the SRS periodic burst transmissions includes a start time for the SRS periodic burst transmissions, a repetition configuration for the SRS resources within each set, and a repetition configuration for the plurality of sets of SRS transmissions. The configuration may be received in a Radio Resource Control (RRC) configuration message or a Medium Access Control-Control Element (MAC-CE) message that activates the SRS periodic burst transmissions, and the SRS periodic burst transmissions may be deactivated with a RRC reconfiguration message or another MAC-CE message.

Provided in the embodiments of the present disclosure are a mapping method for probabilistic shaping and a reception processing method for probabilistic de-shaping. The mapping method comprises: on the basis of a target amplitude probability distribution and a bit to be shaped, acquiring a shaping amplitude bit by means of a first decoder, which is dedicated to a channel code; and mapping the shaping amplitude bit to form a modulation constellation point. In the embodiments of the present disclosure, decoding can be performed according to a target amplitude probability distribution and by means of a first decoder, which is dedicated to a channel code, such that a shaping amplitude bit is acquired, and the shaping amplitude bit is enabled to be close to the target amplitude probability distribution, thereby realizing a relatively small rate loss and a relatively low shaping complexity.

Provided are a signal transmission method and apparatus, a device, and a computer storage medium. A method for sending a measurement reference signal includes: determining parameter information of the measurement reference signal according to received signaling information and / or a pre-negotiated parameter determination rule; and sending the measurement reference signal according to the determined parameter information.

A communication device (12) transmits signaling (20) indicating that the communication device (12) is capable of demodulating a data channel (16) using a demodulation reference signal (18) scheduled without a scheduling restriction on a number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped, e.g., the scheduling restriction restricts the number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped to being a multiple of a length of a frequency-domain orthogonal cover code applied to the demodulation reference signal (18). Depending on whether the communication device (12) is so capable, the demodulation reference signal (18) is scheduled with or without applying the scheduling restriction.

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.

A method for optimizing uplink performance of Open Radio Access Network (O-RAN) system implementing O-RAN split option 7-2x-based uplink (UL) multiple-input multiple-output (MIMO) operation includes: selectively utilizing non-port reduced DMRS symbols and non-port reduced DMRS measurements to mitigate performance degradation of the UL MIMO in conditions involving high mobility for a user equipment (UE) and / or high interference. The non-port reduced DMRS symbols are DMRS symbols from multiple antenna streams before digital beamforming operation, and non-port reduced DMRS measurements are measurements derived from the non-port reduced DMRS symbols. A radio unit (RU) of the O-RAN system i) extracts the non-port reduced DMRS symbols, and ii) transmits the non-port reduced DMRS measurements to a distributed unit (DU) of the O-RAN system. The DU transmits combining and / or digital beamforming matrix elements to the RU for combining and / or digital beamforming matrix application.

A method, network node and wireless device (WD) for downlink (DL) pre-compensation and quasi-collocated (QCL) signaling for coherent joint transmission are disclosed. According to one aspect, a method in a network node includes transmitting (S144) a first reference signal (RS) over a first transmission-reception point (TRP) and a second RS over a second TRP. The method includes receiving (S146) time delay difference and / or a frequency difference information between the TRPs. The method includes transmitting (S148) the DL channel with a delay pre-compensation and / or a frequency pre-compensation over the first TRP and without delay or frequency pre-compensation over the second TRP. The method includes transmitting (S150) QCL information indicating whether a DL channel transmitted from the first and second TRPs is pre-compensated. The method further includes pre-compensating (S152) the DL transmission over the first TRP according to the received time delay difference or frequency difference.

A power-over-Ethernet (PoE) PD / PSE device comprises a powered device (PD) interface configured to connect to an upstream power sourcing equipment (PSE) and receive input PoE power from the PSE, and a PSE interface configured to connect to a downstream PD and to supply output PoE power to the PD. The PD / PSE also comprises a device power rail to supply operational power to one or more components of the PD / PSE, and a DC-DC converter comprising a multi-output transformer comprising a transformer input, a first transformer output electrically connected to the PSE interface, and a second transformer output electrically connected to the device power rail. The DC-DC converter is configured to receive the input PoE power and, in response, supply the input PoE power to the transformer input, generate the output PoE power at the first transformer output, and generate the operational power at the second transformer output.

Various aspects of the present disclosure relate to utilizing artificial intelligence (AI) and / or machine learning (ML) prediction models when compensating for channel aging in non-terrestrial networks (NTNs). The aspects of the present disclosure can facilitate the selection of a prediction model based on specific conditions or attributes of an NTN, such as parameters associated with a satellite of the NTN and / or weather or atmospheric conditions surrounding the NTN.

Disclosed are techniques for wireless communication. In an aspect, a wireless communication device may transmit a first reference signal. The wireless communication device may receive a second reference signal that is in response to the first reference signal, the first reference signal and the second reference signal having a same operating frequency. The wireless communication device may determine a first channel impulse response based on the first reference signal and the second reference signal. The wireless communication device may generate a measurement report for output, the measurement report including a reported channel impulse response that is based on the first channel impulse response and indicates multiple propagation paths observable from the second reference signal.

This application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a physical layer protocol data unit, and for example, is applied to a wireless local area network. The method includes: A first communications device generates a PPDU and may send the PPDU, where the PPDU includes an LTF sequence; and correspondingly, a second communications device receives the PPDU, and parses the PPDU to obtain the LTF sequence included in the PPDU. Embodiments of this application can be used to design an LTF sequence that has a relatively low PAPR on entire bandwidth, on a single resource unit, on a combined resource unit, and in a considered multi-stream scenario.

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.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to various embodiments of the present disclosure, a method performed by a base station in a wireless communication system may comprise: acquiring, on the basis of a CSI report in a first time period, channel information including current channel state information (CSI) from a terminal; identifying, on the basis of the channel information, a spatial domain (SD) component, a frequency domain (FD) component, and a linear combination (LC) coefficient value mapped to the SD component and the FD component used for compression; acquiring a filtered LC coefficient value on the basis of a Kalman filter, and generating predicted channel information in a second time period on the basis of the SD component, the FD component, and the filtered LC coefficient value.

A transmitting / receiving device for a bus system and a method for reducing an oscillation tendency in the transition between different bit states. The transmitting / receiving device has a transmitting stage for transmitting a transmission signal to a first bus wire of a bus of the bus system and for transmitting the transmission signal as an inverse signal to a second bus wire of the bus, and an asymmetry reduction module for reducing an asymmetry of bus signals arising in the bus wires. The asymmetry reduction module includes a polarity reversing diode, whose cathode is connected to the cathode of a reverse polarity diode of the transmitting stage. The asymmetry reduction module switches a potential of the cathode of the polarity reversing diode to a potential that is greater than or equal to a level of a recessive bus state.

An information processing method and an information processing apparatus, a terminal and a network device are provided, and relate to the field of communication technology. The method includes: receiving, by a terminal, a downlink signal sent by a network device; determining, by the terminal, a first network model according to the downlink signal; wherein the first network model is at least one of I network models which are pre-deployed or are downloaded from the network device side, where I is a positive integer; encoding, by the terminal, first channel information through the first network model, to obtain to-be-transmitted encoded data; and processing, by the terminal, the encoded data and then sending, by the terminal, data resulting from the processing of the encoded data to the network device.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating a configuration for the UE to perform a machine learning-based inference (e.g., based on a machine learning model) for predicting a characteristic of at least one resource, at least one communication beam, or at least one communication channel. The characteristic may be associated with a spatial domain, a time domain, a frequency domain, or any combination thereof. In accordance with the configuration, the UE may perform the machine learning-based inference for the characteristic. The UE may also perform a measurement of the characteristic (e.g., an actual measurement). The UE may also transmit, in accordance with a triggering condition, an indication of a difference between the machine learning-based inference and the measurement of the characteristic.

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.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmit / receive (Tx / Rx) imbalance associated with a user equipment (UE) may be calibrated. For example, in some aspects, the UE may transmit a sounding reference signal (SRS) to an assisting node, which may provide the UE with assistance information indicating a received version of the SRS or an estimated effective channel based on the SRS transmission, which the UE may then use to calculate one or more Tx / Rx imbalance values. Additionally or alternatively, the UE may receive a reference signal from the assisting node and provide feedback to the assisting node, and the assistance information may indicate the one or more Tx / Rx imbalance values to the UE. In either case, the UE may then use the one or more Tx / Rx imbalance values to select a precoder for a transmission to the assisting node.

Methods and apparatus are provided. In an example aspect, a method in a first access point of transmitting a signal is provided. The method includes, for each of a plurality of User Equipments (UEs), determining a phase alignment correction factor (PACF) for the UE based on an access point group associated with the UE, and transmitting a respective first signal to the UE, wherein the first signal is phase adjusted using the PACF determined for the UE.

The present application relates to devices and components including apparatus, systems, and methods to perform a codebook-based SRS transmission. In an example, eight or more antenna ports are used for the codebook-based SRS transmission. In this example, a UE can be configured by a base station for the codebook-based SRS transmission, whereby the configuration indicates a particular comb configuration, symbol index configuration, and / or cyclic shift configuration to allow the use of the eight or more antenna ports.

The invention provides a sensing measurement method, a sensing measurement device, sensing measurement equipment and a storage medium, which support an IEEE (Institute of Electrical and Electronic Engineers) Wi-Fi (Wireless Fidelity) protocol, such as an IEEE 802.11 be / Wi-Fi 7 / EHT protocol, an IEEE 802.11 bn / UHR / Wi-Fi 8 protocol, an IEEE 802.15 / UWB protocol, or an IEEE 802.11 bf / sensing / sensing protocol and the like. The method may be applied to an initiator of perceptual measurements, such as a first communication device. The method comprises: a first communication device receiving first compression indication information, the first compression indication information being used for indicating whether to compress sensing feedback information, the content to be compressed in the sensing feedback information being agreed by a protocol, the content to be compressed in the sensing feedback information comprising all of the sensing feedback information or a part of the sensing feedback information, and processing the sensing feedback information based on the first compression indication information so as to compress part or all of the sensing information, thereby realizing compressed transmission of the sensing feedback information.