4845results about "Modulated-carrier systems" patented technology

This application provides a communication method and apparatus for reducing energy consumption while maintaining normal communication of a network apparatus. In the method, a terminal apparatus obtains operation mode information of a network apparatus, where an operation mode of the network apparatus includes one of a first operation mode or a second operation mode, and the first operation mode and the second operation mode belong to a same radio access technology. In the first operation mode, a transmission resource for a synchronization signal of the network apparatus has lower overheads or supports fewer functions. Alternatively, an access procedure in the first operation mode is different from an access procedure in the second operation mode. Based on the operation mode information, the terminal apparatus performs communication with the network apparatus by using the configuration information in one of the first operation mode and the second operation mode.

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.

Logic may send information on cross-link interference reference signal (CLI-RS) resource and measurement configuration via an interface to a second base station, the CLI-RS resource and measurement configuration to comprise an identification of a communication resource within which to measure the CLI-RS. Logic may cause transmission of the CLI-RS. Logic may receive the CLI-RS measurement report based on measurement of the CLI-RS based on a definition for a CLI-RS measurement report from the second base station via the interface. Logic may decode information on CLI-RS resource and measurement configuration received via the interface from a first base station. Logic may measure the CLI-RS based on identification of the communication resource. Logic may generate the CLI-RS measurement report based on measurement of the CLI-RS. And logic may send the CLI-RS measurement report to the first base station.

The invention discloses a method for identifying a multi-model fusion signal modulation mode based on a time-frequency diagram, and belongs to the field of signal processing. Preprocessing the original signal to obtain a signal sample; constructing a data set by using the normalized signal samples; constructing a fusion model; training a modulation identification module in the fusion model; performing modulation mode identification on an input unknown signal by using the fusion model to obtain a preliminary identification result; and performing comprehensive judgment on the preliminary recognition result of the fusion model by using a comprehensive judgment device to obtain a final recognition result. According to the invention, by combining a plurality of time-frequency analysis methods, the time-frequency domain feature information of the signal is fully extracted; the reliability and robustness of a final decision are improved by adopting a multi-model fusion framework, and the modulation recognition performance of the system under the condition of a low signal-to-noise ratio is improved.

A wireless communication method includes the following. A user equipment (UE) receives a network discontinuous communication configuration sent by a base station, where the network discontinuous communication configuration includes a network discontinuous communication configuration for a cell and / or a network discontinuous communication configuration for the base station.

A method performed by a WTRU may include receiving a random access channel (RACH) configuration indicating a plurality of RACH occasions. The RACH occasions within respective subsets are frequency division multiplexed. The method includes receiving configuration information indicating at least one transmit power threshold and information indicating resources associated with a mode of operation, and receiving criteria for selecting a RACH occasion that defines a group of RACH occasions from at least one subset that overlap with at least one uplink subband. The method includes sending a preamble transmission using a calculated transmit power in a selected RACH occasion, wherein, on a condition the calculated transmit power exceeds the transmit power threshold, the selected RACH occasion is selected from the defined group of the plurality of RACH occasions that overlap with the at least one uplink subband.

A method for receiving a downlink channel by a terminal in a wireless communication system includes: receiving, from a base station, first information related to a guard band in a first resource region located in one carrier; receiving, from the base station, second information related to multiple resource sets, each of which is identified by the guard band in the first resource region on the basis of the first information; and receiving, from the base station, a downlink channel on a resource indicated by the second information to be available for reception of the downlink channel.

A wireless communication method includes: receiving, by a target device, a plurality of backscatter signals transmitted by each of a plurality of anchor devices, where the plurality of backscatter signals have different frequencies; and determining distance information between the target device and each anchor device according to phase information of the plurality of backscatter signals transmitted by each anchor device, where the distance information between the target device and the plurality of anchor devices is used to determine location information of the target device.

A user equipment (UE) having PC5-RRC connection with other UE is described. The UE may comprise transmission circuitry configured to transmit, to the other UE, a reference signal for sidelink positioning; and higher layer processing circuitry configured to acquire a PC5-RRC message including a measurement result of sidelink positioning.

A method by which a first device performs wireless communication and a device supporting same are provided. The method may comprise the steps of: acquiring information related to a resource for a sidelink-synchronization signal block (S-SSB); acquiring information about a first time domain for a first cyclic prefix extension (CPE) related to S-SSB transmission; performing the first CPE during the first time domain before the S-SSB transmission; and performing the S-SSB transmission on the basis of the resource.

A first-type synchronization signal block (SSB) is transmitted on a cell at a first-type SSB time in a first mode. A second-type SSB is transmitted on the cell at a second-type SSB time on the basis of switching from the first mode to a second mode. The first type SSB includes a PSS, an SSS, and a PCBCH, and the second-type SSB has a different structure from the first-type SSB.

The present disclosure relates to a communication technique converging IoT technology with a 5G communication system for supporting higher data transfer rates than 4G systems and a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety-related services, or the like) on the basis of 5G communication technology and IoT-related technology. The present invention relates to a wireless communication system, and more specifically, the present invention relates to a method and device for providing a terminal mobility event reporting service in a cellular wireless communication system (5G system).

Methods, systems, and devices for wireless communications are described. A wireless device may perform a probabilistic shaping procedure using a shaping rate that is selected in accordance with a rule associated with a target spectral efficiency value, a modulation order, or both. Similarly, the wireless device may perform a channel coding procedure whose coding rate is selected in accordance with the rule. The rule may correspond to a relationship between the coding rate and the shaping rate. In some cases, the wireless device may select the shaping rate and the coding rate to be predefined values based on a target spectral efficiency value. In some examples, the wireless device may select the shaping rate and the coding rate based on a threshold coding rate, a quantity of punctured nodes used in the channel coding procedure, a quantity of layers corresponding to a multi-layer transmission, or any combination thereof.

Aspects presented herein may improve network energy saving by enabling a base station to transmit SSBs in a set of SSBs with different periodicities. In one aspect, a base station configures each SSB in a set of SSBs with an SSB transmission periodicity for a time period, the time period including multiple SSB burst set transmission occasions, where at least a first SSB and a second SSB in the set of SSBs are configured with different SSB transmission periodicities. The base station transmits the set of SSBs based on a corresponding SSB transmission periodicity of each SSB over the time period.

Embodiments of the present disclosure relate to methods and apparatuses for sidelink (SL) beam management. According to an embodiment of the present disclosure, a user equipment (UE) can include: a processor configured to: obtain configuration information for beam pairing based on configuration or pre-configuration, wherein the configuration information includes at least one of: a configuration for sidelink beam pairing block (S-BPB); a configuration for sidelink beam pairing reference signal (sl-BP-RS); a configuration for sidelink beam pairing feedback (sl-BP-FB); or association pattern (s) between occasions for sl-BP-RS and sl-BP-FB; and determine resource (s) for transmitting sl-BP-RS (s) based on the obtained configuration information in response to the UE becoming a UE for transmitting sl-BP-RS (s); a transmitter coupled to the processor and configured to: transmit the sl-BP-RS (s) on the determined resource (s); and a receiver coupled to the processor and configured to: receive sl-BP-FB (s) based on the obtained configuration information and the sl-BP-RS (s); wherein the processor is further configured to identify beam (s) of the UE based on the sl-BP-FB (s).

A PTRS sending method and receiving method and a communication apparatus. The method includes: a terminal device sends first information to a network device, receives first indication information from the network device, and sends a DFT-s-OFDM symbol to which a PTRS is mapped to the network device. In the method, a rule for mapping the PTRS to a plurality of layers of the DFT-s-OFDM symbol is specified, to ensure phase noise estimation performance and improve a demodulation capability.

Disclosed are methods, systems, and computer-readable medium to perform operations including: identifying one or more sidelink synchronization signal block (S-SSB) transmission opportunities during an S-SSB window (S-SSBW); and transmitting on a sidelink channel one or more S-SSBs during the one or more S-SSB transmission opportunities.

A triggering apparatus for an inter-cell mobility procedure includes: a receiver configured to receive measurement-related information, the measurement-related information including one of the following: a layer 1 measurement result by performing layer 1 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by a terminal equipment, first indication information from a second network device based on a layer 3 measurement result by performing layer 3 measurement on a frequency of an inter-frequency candidate target cell or on an inter-frequency candidate target cell by the terminal equipment, or a layer 1 measurement result associated with a candidate target cell; and triggering processor circuitry configured to, based on the measurement-related information, trigger a layer 1 or layer 2 based inter-cell mobility procedure from a serving cell to a target cell.

Provided is a method for contention-based access to a secondary channel. The method is applicable to a first wireless device, and includes: contending for access to the secondary channel in an idle state based on a secondary channel access mode upon receiving channel occupancy information interacted by a second wireless device on a primary channel, wherein the primary channel and the secondary channel are a group of bound channels.

Systems, apparatus and methods are described for dynamic demodulation signal resource allocation. PDSCH / PUSCH DMRS enhancement is provided. A dynamic indication of reference signal functionality may be provided in a slot for an additional DM-RS. A configured CSI-RS / SRS may be dynamically indicated to use as an additional DM-RS in a slot. Frequency shift / hopping of DM-RS as a function of OFDM symbol and / or the order of OFDM symbol containing DM-RS may increase frequency density within a slot. DM-RS antenna port aggregation may increase DM-RS frequency density. One or more DM-RS antenna ports may be used to demodulate the same layer. PDCCH DMRS enhancement is provided. Frequency shift / hopping of PDCCH DMRS may be provided as a function of a REG index within an REG bundle, OFDM symbol index, etc. Use of multiple types of REG (e.g., low and high DM-RS) and REG type may be determined based on subcarrier spacing, operating frequency band, etc.

Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, an example of a process includes receiving a signal comprising a slot including at least one shared signal resource. The process further includes determining whether the slot is allocated for sensing and communications or is allocated for communications. The process further includes determining whether to demodulate the at least one shared signal resource using at least one sensing reference signal (RS) resource or at least one communication RS based whether the slot is allocated for sensing and communications or is allocated for communications.

A method by which a first device performs wireless communication and a device for supporting same are provided. The method can comprise the steps of: transmitting a random access preamble to a base station; receiving, from the base station, a random access response message related to the random access preamble; transmitting, to the base station, a radio resource control (RRC) setup request message on the basis of the random access response message; receiving, from the base station, an RRC setup message as a response to the RRC setup request message; and receiving, from the base station, an RRC message including a setup related to a Uu bandwidth part (BWP) and a setup related to a sidelink (SL) BWP, wherein first device cannot perform SL communication through the SL BWP on the basis of the fact that the numerology of the Uu BWP and the numerology of the SL BWP are different.

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.

A one way ranging method estimates a distance between first and second wireless devices using a technique that involves exchanging dual tone RF signals between the devices and, at each of the first and second devices, maintaining “baseband coherence” between baseband signals carried by the RF signals transmitted and received by each respective device.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The present disclosure provides a method and a device for scheduling multi-cell transmission via a single piece of DCI in a wireless communication system.

The invention discloses an intelligent signal modulation identification method and system fusing time-frequency characteristics. The method comprises the following steps: extracting time-domain characteristics and frequency-domain characteristics in a radio signal in a complex baseband form; fusing the radio signal, the time domain feature and the frequency domain feature to obtain a multi-channel fusion feature; training a convolutional attention network model comprising a stem embedding layer, a plurality of cascaded feature extraction stages and a classification head; inputting the multi-channel fusion features into a trained convolutional attention network model, and performing feature extraction on the multi-channel fusion features through a stem embedding layer to obtain first extraction features; performing deep feature extraction on the first extraction feature through a plurality of cascaded feature extraction stages to obtain a second extraction feature; and inputting the second extraction feature into a classification head for signal modulation identification to obtain a signal modulation identification result corresponding to the radio signal. According to the invention, the accuracy of signal modulation identification can be improved.

The invention discloses a micro-action three-dimensional sensing method and system based on WiFi channel state information, and relates to the technical field of wireless signal sensing. The method comprises the following steps: collecting CSI data, preprocessing, and outputting a CSI amplitude matrix and a phase matrix; the phase difference of adjacent antenna pairs is used for counteracting common noise, a linear mapping model of displacement increment and phase change is constructed, and displacement calculation is achieved; designing a space-time TransFormer model, fusing CSI amplitude, phase difference, displacement increment and Doppler frequency shift characteristics through a time sequence and space joint attention mechanism, and outputting an initial three-dimensional trajectory; optimizing the initial three-dimensional trajectory by using a self-supervised learning mechanism based on physical consistency constraint; and finally, constructing a dynamic path filter, carrying out real-time filtering correction on the optimized trajectory in combination with extended Kalman filtering and Bayesian multipath fusion, and outputting a final three-dimensional trajectory, thereby realizing high-precision and low-delay trajectory reconstruction without labeling in a complex scene.

A beamforming front end (BFFE) for a receiver performs beamforming without needing to perform phase-shifting on each of a plurality of received signals. The BFFE comprises first variable gain amplifiers (VGAs) that respectively amplify the received signals by first gain values and second VGAs that respectively amplify the received signals by second gain values. Outputs of the first VGAs are combined into a first combined signal, and outputs of the second VGAs are combined into a second combined signal. The first and second combined signals are then used to produce an output signal corresponding to phase-shifting the received signals by amounts corresponding to the respective first and second gain values and then summing the results of the phase shifting. The output signal may be produced by mixing the first combined signal with an in-phase local oscillator signal and mixing the second combined signal with a quadrature local oscillator signal.

Disclosed are a method for a terminal to perform a measurement related to positioning in a wireless communication system, and a device therefor, according to various embodiments. Disclosed are a method and a device therefor, the method comprising the steps of: reporting capability information about the terminal related to location measurement; receiving configuration information for the location measurement; performing a measurement on a received reference signal on the basis of the configuration information; and reporting a measurement result for the reference signal.