28483results about "Pilot signal allocation" patented technology

Techniques are provided for estimating an auto-correlation matrix for a transceiver that is coupled to a multi-antenna array. A different power sensor may measure the power of the signals received at a corresponding antenna of the multi-antenna array. The signals received at one antenna of each unique pair of antennas may be shifted in phase using a plurality (e.g., three) of different phase settings to generate a plurality of different shifted signals for each unique pair of antennas. Each of one or more power sensors, for each unique pair of antennas, may measure different combined powers based on the shifted signals and the RF signals received at the other antenna of the unique pair. A module may use the different combined powers with the power measured for each antenna to estimate the auto-correlation matrix.

A wireless transmit / receive unit, WTRU, receives a plurality of positioning reference signals from a plurality of terrestrial transmission points, the positioning reference signals including at least one positioning reference signal from a first terrestrial transmission point and at least one positioning signal from a second terrestrial transmission point, on condition that at least one value based on first measurements of the plurality of positioning reference signals satisfies a condition, transmits a request to initiate, at the WTRU, positioning using positioning reference signals received from satellites, received, in response to the request, information about a set of satellites, selects at least one satellite from the set of satellites, determines a second position estimate for the WTRU based on at least one positioning reference signal received from at least one selected satellite, and sends to a network node a message comprising information indicating the second position estimate for the WTRU.

Various solutions for using on-demand reference signal (RS) or system information block (SIB) for network energy saving with respect to user equipment and network apparatus in mobile communications are described. An apparatus may determine whether to trigger an on-demand RS / SIB or SIB request according to a trigger condition. The apparatus may transmit the on-demand RS / SIB or SIB request to a network node in an event that the trigger condition is satisfied. The apparatus may receive a response of the on-demand RS / SIB or SIB request from the network node. The apparatus may perform an on-demand RS / SIB or SIB measurement according to the response.

Enhanced ranging and positioning services in wireless networks The invention relates to a wireless system and methods for configuring ranging capable devices to form a ranging constellation to support ranging-based positioning services. Multiple challenges in improving location accuracy when using ranging measurements to derive the location coordinates are addressed. In particular, timing at which the location information can be derived from ranging measurements and methods used for ranging-based location estimation are described.

Logic may decode information on cross-link interference (CLI) measurement and report configuration received via a first downlink (DL) control information (DCI) from a first base station to comprise an identification of a communication resource within which to measure a sounding reference signal (SRS) or other uplink transmission and a definition for a CLI measurement report. Logic may measure the SRS or other uplink transmission based on the identification of the communication resource. Logic may generate the CLI measurement report based on measurement of the SRS or other uplink transmission. Logic may send the CLI measurement report. Logic may generate a CLI measurement and report configuration to comprise an identification of a communication resource within which to measure a SRS and a definition for a CLI measurement report. And logic may send the CLI measurement and report configuration via a DCI transmission to a first user equipment.

Systems, methods, and instrumentalities are described herein for supporting low power high accuracy positioning (LPHAP). A wireless transmit / receive unit (WTRU) may receive configuration information (e.g., in a radio resource control (RRC) reconfiguration message) from a first cell. The configuration information may indicate a first sounding reference for positioning (SRSp) configuration and a second SRSp configuration. The first SRSp configuration may be associated with a first positioning area and the second SRSp configuration may be associated with a second positioning area. The first positioning area may include a first cell ID set and the second positioning area may include a second cell ID set. The first SRSp configuration may be activated and the second SRSp configuration may be deactivated.

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.

Systems, apparatuses, methods, and computer-readable media are provided for multiple operation modes for downlink (DL) or uplink (UL) transmission in duplex operation, wherein the method comprises: configuring, by a fifth generation (5G) base station (gNB), one or more UL and / or DL resources within a serving cell or bandwidth part (BWP) bandwidth for different symbols; receiving, by a user equipment (UE), an indication of the UL and DL resource configuration; and receiving or transmitting, by a UE, the DL or UL channels / signals, according to the configuration of the DL or UL channels / signals and / or the DCI scheduling the DL or UL channels / signals. Other embodiments may be described and / or claimed.

A method implemented in a wireless transmit / receive unit (WTRU) is provided. The method may include receiving configuration information indicating (i) a set of positioning reference signal (PRS) resources and (ii) a time window to be used for phase measurement with the set of PRS resources. The method may include determining a phase difference measurement based on a first PRS of a first plurality of PRS and a second PRS of a second plurality of PRS, the first and the second PRS being received in the time window. The method may include determining a reference signal time difference (RSTD) measurement based on the first PRS of the first plurality of PRS and a third PRS of the second plurality of PRS and transmitting reporting information indicating the determined phase difference measurement and the determined RSTD measurement.

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.

A method performed by a radio unit (RU) is provided. The method includes receiving, by the RU, sounding reference signals (SRSs), receiving, by the RU from a distributed unit (DU) via a fronthaul interface, a control plane (C-plane) message including SRS configuration information, performing, by the RU, channel estimation based on the SRSs and the SRS configuration information, and performing, by the RU, beamforming on the basis of the channel estimation.

A wireless transmit / receive unit, WTRU, receives a positioning request message from another WTRU (1402). The positioning request message indicates a request associated with one or more of a sidelink positioning reference signals, SL-PRS, transmission or a SL-PRS reception and indicates a range of one or more parameters associated with the SL-PRS transmission or reception; these parameters comprise one or more of SL-RSRP, angle of departure AoD, angle of arrival AoA, and a line of sight LOS / NLOS metric. The WTRU measures the one or more parameters indicated in the positioning request message (1404) and performs the SL-PRS transmission (1410) or the SL-PRS reception (1410) on the condition that the measured parameters are within the range indicated in the positioning request message (1408).

Wireless sensing using classifier probing and refinement is described. In one example, a described method comprises: computing output analytics by a classifier based on input data constructed based on raw measurement data; mapping each output analytics to a respective mapped outcome; identifying at least one reference input data each associated with a reference output analytics and a reference mapped outcome; each reference input data being one of the input data for the classifier for which a respective reference outcome is available and is different from the reference mapped outcome; and for each reference input data for the classifier: computing a respective plurality of perturbed output analytics by the classifier, generating selected perturbed input data based on the plurality of perturbed output analytics; and re-training the classifier based on the selected perturbed input data and the associated reference outcome.

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.

This disclosure pertains to devices, methods, and systems implemented for discontinuous network access. The implementation includes monitoring for a presence indication signal in a second cell. The implementation includes determining to transmit a wake-up signal for the first cell based on detecting the presence indication signal in the second cell and based on a measurement performed on a synchronization signal block (SSB) of the second cell being less than a threshold. The implementation includes transmitting the wake-up signal. The implementation includes monitoring for transmission of an SSB of the first cell after transmitting the wake-up signal. The implementation includes receiving information indicating that the first cell has transitioned to an active state after transmitting the wake-up signal. The implementation also includes transmitting data via the first cell after receiving the information indicating that the first cell has transitioned to the active state.

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.

According to some embodiments, a method performed by a wireless device comprises obtaining a sounding reference signal (SRS) resource configuration for 6 or 8 SRS ports and transmitting SRS according to the SRS resource configuration. In particular embodiments, the SRS resource configuration comprises an SRS resource for 6 or 8 SRS ports wherein the SRS resource is divided into at least two subsets, wherein each subset is associated with a different comb offset. In particular embodiments, the SRS resource configuration comprises two SRS resources. Each SRS resource supports up to 4 SRS ports. Transmitting SRS according to the SRS configuration comprises transmitting SRS using an 8 port codebook.

A Wireless Transmit / Receive Unit (WTRU) may receive information indicating that a first CORESET that is associated with a first TCI state instance and a second CORESET that is associated with a second TCI state instance. The WTRU may receive a DCI comprising a TCI field indicating a TCI value. The WTRU may use the first TCI state to monitor for the PDCCH transmission in the first CORESET when the TCI value indicates that the first TCI state is associated with the first TCI state instance and when the first CORESET is associated with the first TCI state instance. The WTRU may use the second TCI state to monitor for the PDCCH transmission in the second CORESET when the TCI value indicates that the second TCI state is associated with the second TCI state instance and when the second CORESET is associated with the second TCI state instance.

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.

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.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a transmission configuration indicator (TCI) state. The UE may determine that the TCI state is a semi-known TCI-state based at least in part on a known TCI state condition not being satisfied and a TCI state prediction condition being satisfied. The UE may apply a TCI state switching delay timeline that is associated with semi-known TCI states. Numerous other aspects are described.

Example embodiments of the present disclosure relate to an effective mechanism for handing the scenario of discontinuous coverage. In this solution, the terminal device generates at least one beam report based on an active transmission configuration indicator (TCI) state of the terminal device, where the terminal device is configured with at least one of a serving cell associated with a first physical cell identity (PCI) and a neighbor cell associated with a second PCI. The terminal device further transmits the at least one beam measurement report in the serving cell or in the neighbor cell. In this way, the number of reporting the useless and unnecessary measurements result is reduced.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure relates to: a communication technique merging IoT technology with a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, small business, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. According to various embodiments of the present disclosure, a method performed by a base station in a wireless communication system comprises the steps of: receiving terminal capability report information from a terminal; transmitting, to the terminal, an upper layer parameter determined on the basis of the terminal capability report information; receiving, from the terminal, a sounding reference signal (SRS) determined by means of the upper layer parameter; determining downlink control information (DCI) for scheduling a physical uplink shared channel (PUSCH) on the basis of the SRS; transmitting a signal including the DCI to the terminal; and receiving the PUSCH and an uplink (UL) phase tracking reference signal (PTRS) from the terminal.

A terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control (MAC) control element (CE) for indicating activation of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels, and a control section that judges, based on a first field and a second field included in the MAC CE, which of a first downlink (DL) TCI state, a first uplink (UL) TCI state, a first common TCI state common to DL and UL, a second DL TCI state, a second UL TCI state, or a second common TCI state common to DL and UL one or more TCI state ID fields included in the MAC CE indicate. According to one aspect of the present disclosure, it is possible to appropriately perform TCI state indication.

Certain aspects of the present disclosure provide techniques for channel estimation based on transmission spatial information. An example method of wireless communication by a user equipment includes receiving an indication of transmission spatial information associated with a network entity; receiving a reference signal from the network entity based on the transmission spatial information; and transmitting, to the network entity, channel state information (CSI) based on the received reference signal and the transmission spatial information.

A UE comprising: detecting, in a cell, a synchronization signal block (SSB) comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH); acquiring, from the SSB, information related to whether system information block 1 (SIB1) is on-demand system information (SI); transmitting a SIB1 request on the basis that the SIB1 is the on-demand SI; on the basis of the SIB1 request, monitoring a physical downlink control channel (PDCCH) associated with the SIB 1; and, on the basis of detecting the PDCCH, receiving a physical downlink shared channel (PDSCH) for carrying the SIB1.

Techniques are provided for enabling on-demand positioning reference signals (PRS) with a user equipment (UE). An example method for determining a location of a mobile device includes sending a request for downlink positioning reference signals to a network server, where the request includes positioning reference signal configuration information, receiving assistance data based on the positioning reference signal configuration information, measuring one or more downlink positioning reference signals based at least in part on the positioning reference signal configuration information, and determining a location of the mobile device based at least on part on the measurements obtained from the one or more downlink positioning reference signals and the assistance data.

Various embodiments herein are related to new radio (NR) sidelink (SL) operation in the unlicensed spectrum. Specifically, various embodiments may relate to design parameters or implementations of a physical SL control channel (PSCCH) and / or physical SL shared channel (PSSCH) in such a network. Other embodiments may be described and / or claimed.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transfer rate. The present disclosure relates to a method performed by a terminal in a wireless communication system. Provided according to various embodiments of the present disclosure are a method and a device which can quickly activate cells in a next-generation mobile communication system.