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.

Abstract: Provided are a terminal positioning method and apparatus, and a storage medium. The 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, wherein 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 is a positioning reference signal generation method, which includes the following steps: allocating a time-frequency resource to a positioning reference signal, where the time-frequency resource includes at least two consecutive symbols; and according to generation information of the positioning reference signal and the time-frequency resource, taking the at least two consecutive symbols as a combined PRS symbol to generate the positioning reference signal which is consecutive in a time domain based on a preset generation mode. Further provided are a positioning reference signal generation apparatus, a base station and a readable storage medium.

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: A semiconductor device and a method for fabrication of the semiconductor device are described that include a perovskite layer formed using a solution process with lead iodine and methylammonium halide. In an implementation, a semiconductor device that employs example techniques in accordance with the present disclosure includes a cathode layer; an anode layer; and an active layer disposed between the cathode layer and the anode layer, where the active layer includes a perovskite layer including an interdiffused and annealed lead iodine (PbI2) film and methylammonium halide (CH3NH3X) film. In implementations, a process for fabricating a continuous-perovskite semiconductor device that employs example techniques in accordance with the present disclosure includes spinning a PbI2 layer onto an ITO-covered glass; spinning an MAI layer onto the PbI2 layer; annealing the PbI2 layer and the MAI layer; spinning a PCBM layer onto a resulting perovskite layer; and depositing an Al layer.

Abstract: A polymer ion exchange membrane for acidic electrolyte flow battery. The membrane is nitrogen heterocycles aromatic polymer, especially polybenzimidazole type polymer. A nitrogen heterocycles in the membrane interact with acid in the electrolyte to form donor-receptor proton transport network, so as to keep the proton transport performance of the membrane. The preparation condition for the membrane is mild, and the process is simplicity. The preparation method is suitable for mass production. The membrane is used in acidic electrolyte flow battery, especially in vanadium flow energy storage battery. The membrane has excellent mechanical stability and thermostability. In vanadium redox flow battery, the membrane has excellent proton conduct performance and excellent resistance to the permeation of vanadium ions.

Abstract: A polymer ion exchange membrane for acidic electrolyte flow battery. The membrane is nitrogen heterocycles aromatic polymer, especially polybenzimidazole type polymer. A nitrogen heterocycles in the membrane interact with acid in the electrolyte to form donor-receptor proton transport network, so as to keep the proton transport performance of the membrane. The preparation condition for the membrane is mild, and the process is simplicity. The preparation method is suitable for mass production. The membrane is used in acidic electrolyte flow battery, especially in vanadium flow energy storage battery. The membrane has excellent mechanical stability and thermostability. In vanadium redox flow battery, the membrane has excellent proton conduct performance and excellent resistance to the permeation of vanadium ions.

Abstract: This invention relates to a compound of Formula (I): (I) and its use in treating hyper-proliferative disorders and diseases associated with angiogenesis.

Abstract: This invention relates to a compound of Formula I (I) and its use in treating hyper-proliferative disorders and diseases associated with angiogenesis.