6158 results about "Channel state information" patented technology

Systems and methods are disclosed herein for Channel State Information (CSI) reporting with angle and delay reciprocity. Embodiments of a User Equipment (UE) and a method of operation thereof are disclosed. Embodiments of network node and a method of operation thereof are also disclosed.

An embodiment of an operating method of a first device may comprise the steps of: receiving, from a second device, a first report setting configured to perform reporting of first channel state information (CSI); receiving, from the second device, a first medium access control (MAC) control element (CE) that configures one or more multiplexing modes for the first device in at least a first time resource; generating the first CSI on the basis of the first report setting and the first MAC CE; and transmitting the first CSI to the second device, wherein the first time resource configures a first CSI reference resource, configured by the first report setting.

A terminal according to one aspect of the present disclosure includes: a control section that derives a channel state information (CSI) report, based on a bit output in response to input of input information related to at least part of a particular matrix to an encoder; and a transmitting section that transmits the CSI report. According to one aspect of the present disclosure, it is possible to achieve preferable overhead reduction / channel estimation / resource utilization.

The invention relates to a secure communication method between an edge server and terminal equipment. The secure communication method comprises the following steps: establishing a physical layer channel state information database, generating a multi-dimensional feature vector and encoding the multi-dimensional feature vector into a terminal equipment identifier, generating an identity authentication request by the terminal equipment, and performing hash operation to obtain a first hash value; the identity authentication request and the first hash value are sent to the edge server, the edge server verifies the identity authentication request and queries a corresponding device key, performs hash operation to obtain a second hash value, generates an authentication response message after successfully comparing the second hash value with the first hash value, encrypts the authentication response message by using the device key, and sends the encrypted authentication response message to the edge server; and sending the encrypted authentication response message to the terminal equipment. And the terminal equipment decrypts by using the equipment key to obtain the session key, and communicates with the edge server based on the session key. By using the physical layer channel information and the equipment hardware characteristics, the security communication method fusing dynamic identity authentication and efficient key management improves the security, reliability and anti-attack ability of communication between the edge server and the terminal equipment.

A terminal device includes means for: receiving, from a network device, a port group configuration indicating at least two groups of antenna ports in a channel state information reference signal, CSI-RS, resource set including one or more CSI-RS resources, the at least two CSI-RS port groups being associated with at least two respective transmission reception points, TRPs, using coherent joint transmission, CJT, for downlink, DL, communication; receiving the one or more CSI-RS resources from the at least two TRPs having antenna ports belonging to the at least two respective CSI-RS port groups; determining, based on the one or more received CSI-RS resources, precoding parameters for DL precoding by the at least two respective TRPs, wherein said determining includes a separate determination of at least two port group-specific sets of precoding parameters specific to the at least two respective CSI-RS port groups.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to data-driven channel state information (CSI) prediction in wireless systems are disclosed. In an embodiment, an apparatus may be configured to receive, from a network node, a plurality of reference signals transmitted during a time window; determine, based on a trained artificial intelligence (AI) model, a plurality of channel state information (CSI) associated with the plurality of reference signals; generate a report comprising the plurality of CSI; and / or transmit the report to the network node.

A wireless device transmits radio resource control (RRC) messages comprising capability parameters indicating support, for a layer 1 and / or layer 2 triggered mobility (LTM) procedure and within a measurement window, for synchronization signal block (SSB) based inter-frequency layer 1 reference signal received power (RSRP) measurement of a candidate cell with a received time difference, between the candidate cell and a serving cell, larger than a cyclic prefix (CP) length. The device receives RRC messages indicating a measurement window. The device receives a command indicating an uplink transmission of a L1 RSRP report of the candidate cell. The first cell and the candidate cell are inter-frequency configured. The device transmits the L1 RSRP report measured over one or more first SSBs of the candidate cell. The first SSBs are received: via the candidate cell with the received time difference being greater than the CP length, and within the measurement window.

Described herein are systems, methods and instrumentalities associated with a wireless communication network comprising a reconfigurable intelligent surface (RIS). A wireless transmit / receive unit (WTRU) in such a communication network may receive measurement configuration information that may indicate at least a first measurement resource and a second measurement resource. The first measurement resource may be associated with a first transmission path associated with a first subset of elements of the RIS, while the second measurement resource may be associated with a second transmission path independent of the RIS. The WTRU may perform measurements based on the measurement configuration information, and may transmit a report regarding at least one of the measurements to the network.

Systems, methods, and instrumentalities are described herein for joint transmission (JT) channel state information (CSI) reporting. Joint transmission CSI may be coherent JT CSI or non-coherent JT CSI. Feedback overhead may be reduced, for example, if reporting CSI for multiple transmission / reception points (TRPs). Precoding matrix indicators (PMIs) and / or co-phasing information for TRPs in JT (e.g., coherent JT or non-coherent JT) may be reported. A wireless transmit / receive unit (WTRU) may be configured to employ operations to reduce feedback overhead and / or report PMIs and / or co-phasing information for TRPs in JT.

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.

Apparatuses, methods, and systems are disclosed for determining a resource for a channel state information report. One method (600) includes receiving (602), from a transmitter device, a channel state information reference signal within a data region and a channel state information request indicator in sidelink control information. The method (600) includes determining (604), at a receiver device, a resource for transmitting a channel state information report in response to the channel state information request indicator using a mode 1 resource allocation procedure, a mode 2 resource allocation procedure, or a combination thereof. The method (600) includes transmitting (606), from the receiver device, the channel state information report via a medium access control control element using the resource.

A method and a device for performing sensing measurement in a wireless LAN system are disclosed. The method for performing sensing measurement in a wireless LAN system, according to one embodiment of the present disclosure, comprises the steps of: receiving a null data physical protocol data unit (PPDU) (NDP) announcement frame from a second STA; receiving an NDP from the second STA on the basis of the NDP announcement frame; and transmitting, to the second STA, on the basis of the NDP, a sensing measurement report frame including a sensing measurement report field, wherein the sensing measurement report frame can include a measurement setup ID subfield, a measurement instance ID subfield, and a first subfield representing the number of bits for each channel state information (CSI) value.

Communication devices and methods for determining channel state information (CSI) report based on artificial intelligence (AI) / machine learning (ML) are provided. The method for determining CSI report based on AI / MI performed by a communication device includes determining, by the communication device, one or more CSI reports according to an AI / ML based CSI feedback, wherein each of the one or more CSI reports contains an output of an auto-encoder, a compression ratio, a rank indicator, quantization levels, a ground truth of an enhanced CSI feedback, and / or an ML model monitoring outcome, and determining, by the communication device, priority rules for the CSI reports according to the AI / ML based CSI feedback.

Systems and methods related to prioritization of non-zero coefficients for Channel State Information (CSI) for Coherent Joint Transmission (CJT) are disclosed. Embodiments of a UE and corresponding embodiments of a method performed by a UE for CJT CSI feedback in which non-zero coefficients of a precoding matrix indicator (PMI) feedback are prioritized are disclosed. Embodiment of a network node and corresponding embodiment of a method performed by a network node for CJT CSI feedback in which non-zero coefficients of a PMI feedback are prioritized are also disclosed.

Techniques described herein include solutions for configuring and using parallel measurement gaps with the same gap type for both synchronization signal block (SSB) based and channel state information reference signal (CSI-RS) based measurements associated to the same frequency layer. A User Equipment (UE) may indicate its capability to support parallel measurement gaps to a non-terrestrial base station. The capability may be indicated individually for SSB based and CSI-RS based measurements, or in a combined format for both SSB based and CSI-RS based measurements. The UE receives a measurement gap configuration to configure the parallel measurement gaps and performs measurements accordingly. The measurement gaps for SSB based measurements and the measurement gaps for CSI-RS based measurements may be considered as associated to the same or different frequency layers depending on various conditions.

A method, e.g. performed by a user equipment (UE) connected to a first cell of a first distributed unit (DU) of a first base station is disclosed. The method comprises receiving configuration information for measuring at least part of a synchronization signal block (SSB) and / or a Channel State Information-Reference Signal (CSI-RS) associated with a physical cell ID (PCI) of a second cell and for observing information related to a mobility group indicator (MGI); measuring the at least part of SSB and / or CSI-RS that is associated with the PCI; and observing the information related to the MGI, wherein a combination of the measured at least part of SSB and / or CSI-RS and the information related to the MGI enables to determine at least one of: whether the second cell is an intra-DU cell, an inter-DU cell or an inter-base station cell with respect to the first cell. Corresponding methods performed by units of the first base station are disclosed. Further, a corresponding system and corresponding apparatuses, computer programs, and computer readable media are disclosed.

An information processing method, performed by a base station, and includes: determining whether a terminal supports compression of channel state information-reference signal (CSI-RS) feedback information with at least one artificial intelligence (AI) model; and configuring a CSI-RS according to whether the terminal supports compression of the CSI-RS feedback information with the at least one AI model.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed, in part, to WTRU-specific codebooks generated based on channel state information (CSI) measurements and channel and / or transmission details, parameters and / or requirements. As an example, a WTRU may receive information indicating any of metrics and requirements for configuring a codebook; generate a codebook, comprising first parameters, based on the metrics and CSI related measurements associated with at least a first set of subbands, wherein the first parameters comprise a cluster of subbands having a CSI correlation satisfying a threshold and comprising at least one subband from any of the first set of subbands and a second set of subbands that is based on the first set of subbands; and transmit feedback information associated with CSI, the feedback information indicating at least some of the first parameters and second parameters associated with the at least some of the first parameters.

The invention relates to the technical field of unmanned aerial vehicle communication, and discloses a dynamic spectrum frequency hopping communication method and device for a target aircraft and a ground station, and the method comprises the steps: collecting state information; evaluating a signal quality indicator based on the power data; based on the total spectral range and the signal quality index, segmenting the total spectral range into N sub-bands to obtain a spectrum allocation result; based on the task priority and the communication quality index, carrying out main target machine election; each target machine sends an orthogonal detection sequence in a corresponding time slot to obtain channel state information; converting the channel state information into a frequency hopping key; generating a frequency hopping sequence based on the frequency hopping key; according to the invention, an adaptive frequency hopping technology based on a channel state is adopted, the channel quality is monitored in real time, and a dynamic frequency hopping sequence is generated, so that an interference frequency band is effectively avoided; through a time division multiplexing channel detection mechanism, signal overlapping is fundamentally avoided, and continuous and stable operation in a complex dynamic environment is ensured.

Apparatuses, methods, and systems are disclosed for configuring a channel state information (“CSI”) report. One method includes receiving, at a user equipment (“UE”), a CSI reporting setting. The method includes receiving a non-zero power (“NZP”) CSI reference signal (“RS”) (“CSI-RS”) resource for channel measurement (“CMR”). The NZP CSI-RS resource is decomposed into a plurality of CSI-RS port groups, and each CSI-RS port group is associated with at least one CDM group. The method includes transmitting at least one CSI report based on the received NZP CSI-RS resource. The at least one CSI report includes an indication of a selected subset of the plurality of CSI-RS port groups.

A terminal according to one aspect of the present disclosure includes a receiving section that receives information related to a parameter to be applied to a report of encoded channel state information (CSI), and a control section that controls the report of the encoded CSI, based on the information related to the parameter.

Some embodiments include systems, apparatuses, methods, and computer-readable media for use in a wireless network for determining a reception (Rx) beam sweep scale factor, N, that enables a user equipment (UE) to perform Rx beam refinement. Some embodiments are directed to a 5G Node B (gNB) that includes processor circuitry and radio front end circuitry. The processor circuitry can be configured to receive, using the radio front end circuitry, a MaxNumberRxB cam capability of the UE. The processor circuitry can determine based at least on the MaxNumberRxBeam capability of the UE and / or a Channel-State Information (CSI)-reference signal (RS) set with a repetition parameter configured to be ‘ON’, the value of N. The processor circuitry can generate a message comprising the value N, and encode the message for transmission to the UE, where N Rx beam sweeps enable the UE to perform Rx beam refinement.

Disclosed are a method and device for transmitting or receiving channel state information in a wireless communication system. A method performed by a terminal in a wireless communication system according to an embodiment disclosed herein may comprise the steps of: receiving one or more channel state information-reference signals (CSI-RSs) from a network; calculating one channel quality indicator (CQI) on the basis of a specific precoding matrix indicator (PMI) that is one of a plurality of PMIs respectively corresponding to a plurality of time units; and transmitting a CSI report, including the one CQI and codebook information corresponding to the plurality of PMIs, to the network, wherein the one CQI may be associated with the specific PMI and a specific time unit that is one of the plurality of time units.

The present disclosure describes mechanisms to configure user equipment (UEs) with a set of channel state information (CSI) and / or measurement configurations, and mechanisms to indicate codepoints that activate or trigger selected ones of the configured CSI / measurement configures that individual UEs are to use to report CSI and / or other measurements. The set of configurations can indicate how individual UEs are to compute CSI and / or measurement feedback reports. The set of configurations can include information about which subset of antenna ports from a set of antenna port configurations, and potential transmission power offsets between CSI reference signal (CSI-RS) and physical downlink shared channel (PDSCH). The signaling mechanisms can include radio resource control (RRC) for the CSI / measurement configurations and / or downlink control information (DCI) signaling for activation / triggering of the selected CSI / measurement configurations. The activation / triggering signaling can include a limited number of bits to indicate the codepoints.

A terminal according to one aspect of the present disclosure includes a control section that determines a plurality of channel state information (CSI) corresponding to a plurality of respective transmission / reception points for coherent joint transmission, and a transmitting section that transmits one CSI report including the plurality of CSI. According to one aspect of the present disclosure, it is possible to appropriately perform CSI reporting for CJT.

The present disclosure is generally related to wireless communications technologies, network topologies, and communication device implementations, and in particular, to multipletransmission reception point (multi-TRP) uplink (UL) transmission schemes. The multi-TRP UL transmission schemes include timing advance (TA) associations for multi-TRP operation, channel state information (CSI) enhancements, and codebook structural enhancements. To enhance the performance of Rel-16 codebook, a new codebook structure is constructed by preserving the Rel-16 codebook structure in the spatial dimension (SD) and frequency dimension (FD) while extending the Rel-16 codebook in the time dimension (TD) using a mutually orthogonal Discrete Fourier Transform (DFT) basis.

The invention belongs to the technical field of wireless communication, and particularly relates to a channel state information acquisition method based on a conditional generative adversarial network. The method is based on CSI fusion and a conditional generative adversarial network (GAN), and serves a large-scale MIMO scene; according to the method, firstly, CSI based on an uplink reference signal (SRS) and CSI of a downlink feedback channel are fused, a generator generates predicted CSI of another frequency band after receiving the fused CSI, and a discriminator optimizes the performance of the generator by comparing the real CSI with the generated predicted CSI, so that the prediction accuracy is improved. Experimental results show that the acquisition precision of the channel state information in the FDD system can be effectively improved, and the fusion of the SRS and the downlink feedback and the conversion of the CSI between the frequency bands are realized. The method is suitable for wireless communication, a 5G / 6G MIMO system and other application scenes needing efficient CSI transmission.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to reduction of signaling overhead in connection with processing of reference signals. In an embodiment, an apparatus may be configured to receive, from a network node, configuration information comprising channel state information (CSI) spatial prediction parameters; receive a first plurality of reference signals transmitted from a plurality of antenna ports of the network node; estimate, based on the plurality of the received reference signals, first CSI measurements; and determine, based on the first CSI measurements and the CSI spatial prediction parameters, a first subset of antenna ports among the plurality of antenna ports of the network node and one or more parameters associated with the first subset of antenna ports, wherein the first subset is less than the plurality of antenna ports.

Systems and methods are disclosed that relate to configuring Channel State Information Reference Signal (CSI-RS) for Channel State Information (CSI) feedback associated with downlink transmission from multiple Transmission and Reception Points (TRPs). In one embodiment, a method performed by a User Equipment (UE) comprises receiving information that indicates, for one or more CSI-RS ports in one or more CSI-RS resources in a CSI-RS resource set: (a) multiple Transmission Configuration Indicator (TCI) states associated to each of the CSI-RS resource(s), (b) a single TCI state for each of multiple CSI-RS resources in the CSI-RS resource set, wherein the multiple CSI-RS resources are fully overlapping in time and frequency and each of the multiple CSI-RS resources is associated to a different TCI state, or both (a) and (b). The method further comprises performing channel measurement, determining a channel rank, computing a channel quality, and sending feedback comprising the rank and channel quality.

A method for operating a user equipment (UE) comprises receiving a configuration via a radio resource control (RRC) message, the configuration including information about a channel state information reference signal (CSI-RS) burst comprising B>1 time instances of CSI-RS transmission; measuring the CSI-RS burst; determining, based on the measurement, time-domain (TD) or Doppler domain (DD) components of a downlink (DL) channel; and transmitting a CSI report including an indication about the TD or DD components of the DL channel.