Abstract: A method for protecting a power system having inverter-interfaced renewable energy sources is provided. The power system includes an inverter and a control system. The control system includes a current controller including a saturation limiter and a proportional and integral (PI) controller, a phase-locked system, and a low-voltage ride-through (LVRT)control unit. The method includes: by using a Park transformation matrix, determining an output voltage of the inverter; determining a modulated voltage of the output voltage; upon detecting a grid fault, obtaining current references by the LVRT control unit; determining a fault current in a first stage of a transient phase of the grid fault; determining a fault current in a second stage of the transient phase; determining a fault current in a third stage of the transient phase; and switching the control system to a fault control mode by tracking the fault currents in the first, second and third stages, to the current references.

Abstract: This disclosure provides a device identity authentication method and apparatus, an electronic device, and a computer-readable medium. The device identity authentication method includes generating, by a terminal device, a first identity authentication message in response to an identity authentication instruction; sending the first identity authentication message to the second device for the second device to authenticate an identity of the terminal device based on the first identity authentication message to obtain a first identity authentication result; receiving, by the terminal device, a second identity authentication message; wherein the second identity authentication message is a message sent by the second device when the first identity authentication result is passed; authenticating an identity of the second device based on the second identity authentication message to obtain a second identity authentication result.

Abstract: An exemplary two-step method for power system inertia online estimation is described. The first step is to accurately estimate the POI-level aggregated inertia. The second step is to calculate the system-level inertia constant by weighting all the POI-level aggregated inertia and to monitor the inertia spatial distribution. In one example embodiment, the PMU is installed at POI, the frequency spatial difference is considered, and the mechanical power is carefully treated.

Abstract: Provided are a multipath separation method and device, and a storage medium.

Abstract: A positioning method for a user equipment (UE) and an associated electronic device, the method including after a UE initiates a positioning request, receiving, by the UE, first supplementary information sent by a Location Management Function (LMF), where the first supplementary information comprises Synchronization Signal Block beam polling information of a designated cell reported to the LMF by a Next Generation Radio Access Network, measuring, by the UE, the designated cell to acquire first measurement information, and determining, by the UE, a position of the UE according to the first measurement information and the first supplementary information.

Abstract: Provided are a reference signal resource configuration method and apparatus, a device, and a storage medium. The method includes: configuring a plurality of frequency domain units as a frequency domain unit set, where the frequency domain units are frequency domain resources of a preset frequency segment; configuring a reference signal resource pool corresponding to the frequency domain units, where the reference signal resource pool includes a plurality of reference signal resources, and at least part of the reference signal resources have an association relationship established according to a preset rule or have an association relationship established according to an indication of an association relationship among the frequency domain units; and configuring a preset resource attribute for multiple reference signal resources having an association relationship. The accuracy of estimating a channel feature can be improved by using the reference signal resources for estimating the channel feature.

Abstract: A method and apparatus for processing location information and a non-transitory computer-readable storage medium are disclosed. The method may include: transmitting, by a location management function (LMF) server, location request information to a serving cell of a terminal device, the location request information at least comprising sounding reference signal (SRS) configuration recommendation information; receiving, by the LMF server, location response information transmitted by the serving cell, the location response information at least comprising SRS configuration determination information; and transmitting, by the LMF server, measurement request information to a transmission receive point (TRP), the measurement request information comprising the SRS configuration determination information.

Abstract: A positioning method and apparatus, a terminal device and a storage medium are provided. The method includes: receiving positioning assistance information; performing positioning measurement according to the positioning assistance information; and positioning a target terminal by using a result of the positioning measurement. By means of the solution, the positioning of a terminal device in a Vehicle to Everything (V2X) scenario can be realized.

Abstract: A method for determining a time difference of arrival, and a communication device and system, where neighbor cells for positioning are determined for a target terminal by a positioning server, then cell identities of the neighbor cells and beam polling configuration information of the neighbor cells are transmitted to the target terminal, so that the target terminal may detect a Positioning Reference Signal (PRS) beam transmitted by a corresponding neighbor cell according to the beam polling configuration information, and a time difference of arrival of PRS beams transmitted by one neighbor cell and another neighbor cell is calculated.

Abstract: A terminal positioning method includes: determining that there is no Line Of Sight (LOS) between a first communication node and a terminal, wherein there is a reflecting object between the first communication node and the terminal; determining first position information of the reflecting object according to a first beam of the first communication node, the first beam is a beam, detected by the terminal to have a strongest signal, among a plurality of beams of the first communication node; and determining a position of the terminal according to the first position information.

Abstract: Provided are a location information determination method and device, a first terminal, and a second terminal. The location information determination method includes transmitting positioning request information; receiving positioning assistance data transmitted by a second terminal; calculating a positioning assistance parameter according to the positioning assistance data; and transmitting the positioning assistance parameter or calculating location information of a first terminal according to the positioning assistance parameter.

Abstract: Disclosed is a positioning system. The positioning system includes a positioning signal generation server and a positioning station. The positioning signal generation server is configured to generate a time domain positioning oversampled signal according to a positioning signal parameter and send the time domain positioning oversampled signal to the positioning station. The positioning station is configured to receive the time domain positioning oversampled signal generated by the positioning signal generation server and send the time domain positioning oversampled signal according to sending time information of a positioning signal. Further provided are a positioning signal generation and sending method and a storage medium.

Abstract: The present disclosure provides an information transmission method and device, a node, a server and a computer-readable storage medium. The method includes: determining, by a transmitting node, a reference signal for positioning and transmitting configuration information of the reference signal for positioning to a positioning server, with the reference signal for positioning at least including a Positioning Reference Signal (PRS); and transmitting, by the transmitting node, the reference signal according to the configuration information.

Abstract: Provided are a method and an apparatus for implementing uplink positioning and a storage medium. The method includes: sending a first positioning instruction to a first measurement node set, where the first measurement node set includes at least three measurement nodes and a target node is located within a coverage range of the measurement nodes; receiving first positioning attribute information fed back by each measurement node and corresponding to the first positioning instruction, where the first positioning attribute information includes a measurement node identity and random access information of a cell where the measurement node is located; and sending a random access instruction carrying the first positioning attribute information to the target node, where the random access instruction is configured to trigger the target node to send a random access signal to the each measurement node to determine a communication distance between the target node and the each measurement node.

Abstract: Provided are a multipath separation method and device, and a storage medium.

Abstract: The present disclosure provides transmitting and receiving methods and devices for positioning reference signal, transmitting and receiving nodes and computer-readable storage media. The transmitting method includes: allocating time-frequency resources to PRS resource blocks according to subcarrier spacing; and transmitting the PRS resource blocks according to the allocated time-frequency resources, with each PRS resource block including resource block identification information.

Abstract: Provided are a positioning method and apparatus for a UE a storage medium and an electronic device. The method includes: after a UE initiates a positioning request, the UE receives first supplementary information sent by an LMF; the first supplementary information includes SSB beam polling information of the designated cell reported by a NG-RAN node to the LMF; the UE measures the designated cell to acquire first measurement information; the UE determines the location of the UE according to the first measurement information and the first supplementary information.

Abstract: Provided are a positioning reference signal (PRS) transmission method and apparatus, and a storage medium. A PRS sending end presets PRS blocks having the same number as the number of shaped beams, a corresponding PRS sequence in each PRS block by using a preset sequence generation rule, and each PRS block containing the corresponding PRS sequence is sent according to a preset sending order of the PRS blocks in a polling manner through a shaped beam corresponding to the each PRS block. A PRS receiving end acquires a first PRS block sent by the PRS sending end; and when the first PRS block contains a block index, a sending index of a shaped beam corresponding to the first PRS block corresponding to the block index is determined according to preset correspondence; or when the first PRS block contains no block index, a sending index of a shaped beam corresponding to the first PRS block is determined according to a preset calculation rule.

Abstract: Provide are a positioning reference signal generation method and apparatus, a communication system and a storage medium. The method includes: generating a positioning frequency domain sequence according to time-frequency resource information and system configuration information, where the time-frequency resource information includes the number Nprsslot of allocated system symbols consecutive in time, and the system configuration information includes positioning sub carrier er spacing ?fprs; and generating, based on the positioning frequency domain sequence, positioning time domain data consecutive in a time period of the Nprsslot consecutive system symbols.

Abstract: A method for determining a time difference of arrival, and a communication device and system, where neighbor cells for positioning are determined for a target terminal by a positioning server, then cell identities of the neighbor cells and beam polling configuration information of the neighbor cells are transmitted to the target terminal, so that the target terminal may detect a Positioning Reference Signal (PRS) beam transmitted by a corresponding neighbor cell according to the beam polling configuration information, and a time difference of arrival of PRS beams transmitted by one neighbor cell and another neighbor cell is calculated.