13995results about "Pilot signal allocation" patented technology

The invention discloses a pilot optimization method for large-scale MIMO channel estimation based on structural compressed sensing. The method comprises the steps of establishing a channel estimation model for a large-scale MIMO-OFDM (Multiple-Input-Multiple-Output-Orthogonal Frequency Division Multiplexing) system when pilots are placed in an overlapping mode; simplifying the channel estimation model for the large-scale MIMO-OFDM system, thereby enabling the channel estimation model to correspond to a structural compressed sensing model; and obtaining an optimum pilot matrix through utilization of a pilot optimization algorithm. Through adoption of the optimum pilot matrix, according to the channel estimation of the large-scale MIMO system based on structural compressed sensing, the mean square errors MSEs of the channel estimation are clearly reduced, and the channel estimation performance is improved.

In wireless communication, a device may change, add, or handover between cells of network access for inter-cell mobility. This may include Layer 1 and / or Layer 2 (L1 / L2) signaling for a user equipment (UE) moving between cells in a network. There may be a configuration message that includes configurations for one or more Layer 1 (“L1”) or Layer 2 (“L2”) Triggered Mobility (“LTM”) candidate cells. A measurement report with L1 measurements for the LTM candidate cells is used for a cell switch command to indicate a target LTM candidate cell to trigger execution of a LTM cell switch to the target LTM candidate cell. The LTM cell switch is from a source cell to the target LTM candidate cell.

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.

A first access point (AP) receives from a second AP a first frame comprising a multi-AP frequency channel assignment for a multi-AP transmission, the multi-AP frequency channel assignment comprising a first frequency channel allocated to the first AP for the multi-AP transmission. The first AP transmits a second frame on the first frequency channel during the multi-AP transmission, and, on condition that the first frequency channel is different from a primary channel of the first AP, transmits a portion of a preamble of the second frame, comprising the multi-AP frequency channel assignment, on the primary channel of the first AP.

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.

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives configuration information for a two-part positioning reference signal (PRS) transmitted by a transmission point, wherein the two-part PRS comprises a first part PRS and a second part PRS separated by a time gap, attempts to detect the first part PRS based on the configuration information, and obtains a positioning measurement of the second part PRS based on detection of the first part PRS and the configuration information.

A method is disclosed in which a user equipment (UE) is provided with network energy saving configuration information for energy saving at the access network node. The UE determines whether a measurement of a reference signal (RS) will be limited due to the energy saving at the access network node and the UE configures operation of the UE for the measurement of the RS, based on the determining.

Disclosed are a method and apparatus for transmitting and receiving a wireless signal in a wireless communication system. The method according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, first configuration information including a list of TCI states, the list of TCI states providing a reference signal for a QCL for a downlink channel and / or a reference for determining an uplink transmission spatial filter for an uplink channel; receiving, from the base station, second configuration information related to a CORESET, a plurality of CORESETs, which have different CORESET full indexes, being configured by the second configuration information; and receiving DCI from the base station.

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 user equipment (UE) is disclosed that receives configuration information for a resource for a downlink reference signal and measures the downlink reference signal based on the configuration information. The UE reports information to the access network node, based on the configuration information and the measurement. The reported information includes information for configuring a first transmitter parameter configuration for at least one physical downlink shared channel (PDSCH) transmitted in at least one time resource configured for downlink communication, and information for configuring a second transmitter parameter configuration for at least one PDSCH transmitted in at least one time resource configured for full duplex communication.

A wireless device receives a message comprising discontinuous transmission (DTX) / discontinuous reception (DRX) configuration parameters of a plurality of cell DTX configurations of a plurality of cells. Each cell is configured with a respective cell DTX configuration. The DTX / DRX configuration parameters comprise a respective cell DTX state indication for a cell DTX configuration corresponding to each cell of the plurality of cells. A first value of the cell DTX state indication indicates that the cell DTX configuration is activated for the cell. A second value of the cell DTX state indication indicates that the cell DTX configuration is deactivated for the cell. Based on a first cell DTX state indication having the first value indicating a first cell DTX configuration being activated for a first cell, the wireless device monitors physical downlink control channels of the first cell during a cell DTX active period of the first cell DTX configuration.

Disclosed are systems and techniques for performing wireless communication. For example, a method for wireless communications at a network entity (e.g., a base station or portion thereof) may include selecting a special cell (SpCell) from one or more candidate cells for communicating with a user equipment (UE) and transmitting an indication of the SpCell to the UE. In another example, a method for wireless communications at a user equipment (UE) may include receiving an indication of a special cell (SpCell) from a network entity and, in response to the indication, communicating with the SpCell.

Systems, methods, apparatuses, and computer program products for enhancing dynamic CORESET adaptation with limited or no control channel overhead. One method may include receiving, by a UE, a plurality of PDCCH CORESET configurations associated with at least one SS; determining, by the UE, at least one of the PDCCH CORESET configurations is associated with a symbol or slot format from a corresponding set of symbols; and performing, by the UE, PDCCH monitoring on an active control resource set configuration associated with the set of determined slots or symbols.

A method applied to a network device includes: sending configuration information to a terminal device, where the configuration information indicates M sounding reference signal (SRS) resource sets, the M SRS resource sets include X first SRS resource sets and Y second SRS resource sets, the X first SRS resource sets include at least one first SRS resource, the Y second SRS resource sets include at least one second SRS resource, a time domain resource corresponding to the at least one first SRS resource is a subband full duplex (SBFD) type time unit, and a time domain resource corresponding to the at least one second SRS resource is a non-SBFD type time unit; and receiving an SRS from the terminal device based on the configuration information.

Disclosed are a signal receiving method, a signal sending method, a device and storage medium. The signal receiving method comprises: in response to N control channels at a same time instance colliding, determining a priority of a quasi-co-location reference signal set of the N control channels according to a resource index of a control channel resource where each control channel of the N control channels is located and a feature of each control channel of the N control channels, wherein N is an integer greater than or equal to 2, the feature of each control channel indicates whether the control channel is a shared control channel or a dedicated control channel; and receiving one or more of the N control channels according to the determined priority of the quasi co-located reference signal set.

An embodiment of aspect 1 provides an user device, UE, for a wireless communication system, wherein the UE or a its transceiver is configured toreceive from a network node, e.g., gNB, at leasta channel state information, CSI, report configuration via a higher layer, e.g., radio resource control, RRC, layer,a configuration or indication via a PHY-layer, e.g., physical downlink control channel, PDCCH, signalling, and / or a higher layer signalling,perform measurement(s) on said at least one CSI-RS resource,compute one or more parameters related to a channel state information, CSI, and / or DL transmission rate and / or reliability associated with at least one of the P subsets of a CSI-RS resource, andtransmit a report to the network node via the PHY-layer or a higher layer.

This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method for wireless communication performed by a user equipment (UE) includes receiving cross-link interference (CLI) resource configuration information and angle-of-arrival (AoA) estimation configuration information, The method also includes receiving CLI associated with an uplink transmission transmitted by another UE, and determining a CLI value for the CLI based on the CLI resource configuration information. The method includes determining an AoA value associated with the CLI based on the AoA estimation configuration information, the AoA value corresponding to an estimated AoA at the UE associated with the uplink transmission. The method further includes transmitting CLI report data indicating the determined CLI value and AoA report data indicating the estimated AoA value. Other aspects and features are also claimed and described.

A communication method is performed by a non-Access Point Station Multi-Link Device (non-AP STA MLD). The method includes: determining a first message frame, wherein the first message frame includes identification information for indicating an operation mode to be maintained, and the identification information corresponds to link information for identifying a link to which the operation mode is applicable; and sending the first message frame.

A wireless transmit / receive unit (WTRU) may perform channel state information (CSI) measurement(s) on a first set of reference signals (RSs) associated with a first set of transmission configuration indicator (TCI) states. The WTRU may determine CSI parameter(s) for a second set of RSs based on the CSI measurement(s) performed on the first set of RSs. The WTRU may receive a first indication to activate or deactivate a first TCI state in the first set of TCI states. The WTRU may activate or deactivate a second TCI state of the second set of TCI states based on the first indication to activate or deactivate the first TCI state of the first set of TCI states and / or the determined CSI parameter(s) for the second set of RSs. The WTRU may send a second indication that the second TCI state in the second set of TCI states has been activated or deactivated.

The present disclosure relates to a communication scheme and a system for combining an IoT technology with a 5G communication system for supporting a higher data transfer rate than a 4G system. The present disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, and security- and safety-related services) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure proposes a method and an apparatus for beam failure recovery. An embodiment of the present disclosure provides a method of a terminal in a wireless communication system. The method of the terminal comprises the steps of: obtaining information on at least one reference signal for beam failure detection; identifying whether a beam failure is detected for each of a first reference signal set and a second reference signal set included in the at least one reference signal; and if a beam failure is detected for at least one of the first reference signal set and the second reference signal set, performing a beam failure recovery procedure for the reference signal set in which the beam failure is detected, wherein the first reference signal set is related to a first control resource set (CORESET) pool, and the second reference signal set is related to a second CORESET pool.

Various aspects of the present disclosure relate to methods, apparatuses, and systems that support configuration for radio sensing. For instance, implementations provide for configuration of sensing-related nodes with knowledge of background environments related to specific radio sensing scenarios to assist in sensing receiver processing. Further, knowledge of features of a background environment can be used as assistance information for extracting sensing information for target objects, such as based on information pertaining to signal interactions between a background environment and target objects.

In a first example aspect, a method performed by a user equipment (UE) includes: receiving, from an access network node: first information indicating a first configuration related to transmission of a reference signal in a first time resource configured for a non-subband full duplex (SBFD), and second information indicating a second configuration related to transmission of a reference signal in a second time resource configured for aSBFD; and performing measurement of a reference signal transmitted in a time resource based on: the first information, the second information, and third information indicating whether a respective time resource is valid for transmitting the reference signal.

This disclosure describes systems, methods, and devices for configuring sounding reference signal resources across multiple frequency locations for device positioning. A device may encode for transmission a sounding reference signal (SRS) including a first set of SRS resources for a first transmission by a user equipment (UE) device to the node B network device at a first time and a second set of SRS resources for a second transmission by the UE device to the node B network device at a second time; decode the first transmission received from the UE device using the first set and a first bandwidth at the first time; decode the second transmission received from the UE device using the second set and a second bandwidth at the second time; and combine the first transmission and the second transmission for a device positioning estimation based on the first bandwidth and the second bandwidth.

Methods and apparatuses are described herein for multiple-access point (multi-AP) sounding procedures in a wireless local area network (WLAN). A coordinating AP (CAP) may receive, from one or more member APs in a multi-AP set (MAPS), one or more indications indicating that the one or more member APs are capable of multi-AP sounding during a transmission opportunity (TXOP). The CAP may transmit a CAP TXOP indication (CTI) frame indicating that the multi-AP sounding is to be performed during a TXOP acquired by the CAP. The CAP may receive a CAP TXOP request (CTR) frame indicating that the one or more member APs of the MAP are willing to perform multi-AP sounding during the TXOP. The CAP may transmit a CAP TXOP AP schedule (CTAS) frame indicating a transmission schedule for one or more sounding frames to be transmitted by the one or more member APs during the TXOP.

Apparatuses and methods for channel state information (CSI) processing for CSI reporting. A method performed by a UE includes receiving a configuration about a CSI report. The configuration includes information about a parameter codebookType set to ‘typeI-MultiPanel-r19’ or ‘typeII-Doppler-r19’. The method further includes based on the configuration, processing the CSI report and determining the CSI report. Processing of the CSI report occupies OCPU CSI processing units (CPUs) for a number of orthogonal frequency division multiplexing (OFDM) symbols. The method further includes transmitting the CSI report.

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 present disclosure relates to turning on / off a synchronization signal and a broadcast channel signal in a wireless communication system. This operating method of a terminal may comprise the steps of: receiving downlink control information (DCI) related to system information; acquiring allocation information for receiving the system information on the basis of the DCI; receiving the system information on the basis of the allocation information; acquiring first information related to the position of synchronization signal / physical broadcast channel blocks (SSBs) included in the system information; receiving second information related to on or off of the SSBs; and receiving at least one of the SSBs on the basis of the first information and the second information.

According to embodiments, a user equipment (UE) obtains a repetition number (N) of a sidelink synchronization signal / physical broadcast channel block (S-SSB), N is at least 2. The UE performs a S-SSB transmission of the S-SSB by repeating the S-SSB N times in the frequency domain.