Abstract: A first aspect of the present invention provides a method for the preparation of 2-chloro-5-chloromethylpyridine, comprising: performing a cyclization reaction on 4,5-dichloro-4-methoxypentanenitrile in presence of a silicon compound and an acylamide compound to obtain 2-chloro-5-chloromethylpyridine. Another aspect of the present invention provides a method for preparation of 2-(chloromethyl)-5-(trifluoromethyl)-1,3,4-oxadiazole, comprising: performing a cyclization reaction on 1-(chloroacetyl)-2-(trifluoroacetyl)hydrazine in a presence of a silicon compound and an acylamide compound to obtain 2-(chloromethyl)-5-(trifluoromethyl)-1,3,4-oxadiazole. The silicon compound or/and acylamide compound provided by the present invention serve as cyclization reagents and have high efficiency.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: A current sensor includes: four first uniaxial TMR chips and at least two second uniaxial TMR chips, each first uniaxial TMR chip and each second uniaxial TMR chip being located on the same virtual ring, wherein magnetic sensitive directions of the four first uniaxial TMR chips are perpendicular to a radius of the virtual ring, magnetic sensitive directions of two adjacent first uniaxial TMR chips are perpendicular to each other, magnetic sensitive directions of the two second uniaxial TMR chips are parallel to the radius of the virtual ring and opposite to each other, and the two second uniaxial TMR chips respectively have the same positions as two first uniaxial TMR chips; each first uniaxial TMR chip and each second uniaxial TMR chip are configured to collect a magnetic induction intensity, the magnetic induction intensity is configured to calculate a target current value of a to-be-measured wire.

Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.

Abstract: Provided are a system and a method for wireless communication, and a storage medium. A system for wireless communication comprising: one or more intra-slice managers, at least one of the one or more intra-slice managers is configured for collecting scenario information of a corresponding RAN slice of a plurality of RAN slices in a wireless network, wherein the scenario information is used for determining at least the following: an interference relation between RAN slices, a RAN slice priority and a RAN slice spectrum resource requirement; a first management means, configured for determining an orchestration or re-orchestration scheme of spectrum resources among the RAN slices at least based on the scenario information, wherein the orchestration or re-orchestration scheme of spectrum resources among the plurality of RAN slices includes a first characteristic and quantity of spectrum resources to be allocated to at least one of the plurality of RAN slices.

Abstract: The present disclosure relates to electronic device and method in a wireless communication system. An electronic device of a wireless communication system for purchasing wireless communication resources has an associated communication coverage which intersects with communication coverage of at least one neighboring electronic device. The electronic device comprises a processing circuit configured to determine a specific number of neighboring electronic devices in the at least one neighboring electronic device for purchasing wireless communication resources therefrom, and to purchase wireless communication resources from the specific number of neighboring electronic devices on the basis of the sizes of communication coverage intersection areas between the electronic device and the specific number of neighboring electronic devices.

Abstract: Blockchain nodes and methods for facilitating spectrum sharing are disclosed. The blockchain node is configured to: determine a spectrum price for a spectrum transaction between a service provider and a mobile network operator based on performance functions of the service provider and the mobile network operator; record spectrum transaction information based on the spectrum price in a blockchain, including: verifying back-block data of a block generated by a leader node in a blockchain network, the block recording the spectrum transaction information based on the spectrum price, the back-block data including only a part of the block; and adding the block generated by the leader node into the blockchain in response to the back-block data passing the verification.

Abstract: Provided are an electronic management device and method for wireless communication, and a computer-readable medium. The electronic management device comprises a processing circuit configured to: determine a first distribution attribute of an electronic spectrum acquisition device within a first region where the electronic management device is used as a reference point, and for spectrums to be traded within the scope of management of the electronic management device, determine a second distribution attribute of the electronic spectrum acquisition device within a second region where an electronic spectrum provision device for spectrums is used as a reference point, so as to manage spectrum trading on the basis of the first distribution attribute and the second distribution attribute.

Abstract: Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device comprises: a processing circuit, which is configured to: determine the resource price of a base station on the basis of a comparison between an overall wireless resource demand of a user equipment accessed by a base station in a predetermined area and a radio resource that can be provided by the base station; and send the resource price of the base station to the base station, such that the user equipment determines, at least on the basis of the resource price, whether to access the base station.

Abstract: An electronic device and method for wireless communication, and a computer-readable storage medium; the electronic device comprises: a processing circuit, which is configured to: acquire radio resource control (RRC) signaling from a base station, the RRC signaling comprising configuration information used by a user equipment (UE) for a frequency hopping operation during broadband uplink transmission on an unlicensed frequency band, and the UE switching between multiple sub-bands in the broadband by using the frequency hopping operation so as to execute uplink transmission; and acquire downlink control information from the base station, the downlink control information comprising activation information for the frequency hopping operation.

Abstract: An electronic device includes a processing circuit configured to: with regard to a primary user and at least one secondary user, determine a primary user protection area that surrounds the primary user, wherein the primary user protection area refers to an area where the at least one secondary user causes interference with the primary user; determine a buffer area that surrounds the primary user protection area; and monitor the location of the at least one secondary user, and when the at least one secondary user enters the buffer area, adjust the configuration of the at least one secondary user and/or the configuration of the primary user so as to suppress the interference, caused by the at least one secondary user, with the primary user. By using this approach, interference suppression involving a primary user and a secondary user can be optimized to ensure superior system performance of a primary system.

Abstract: The present invention provides an electronic device and method for wireless communication, and a computer readable storage medium. The electronic device comprises: a processing circuit configured to determine, on the basis of service requirements of each of at least one user equipment, a spectrum sharing mode suitable for the user equipment, and determine, on the basis of the spectrum sharing mode of each user equipment, a spectrum sharing scheme of each user equipment.

Abstract: An electronic device, a wireless communication method, and a computer-readable storage medium. The electronic device according to the present disclosure comprises a processing circuit, which is configured to: determine a credit value of a user equipment according to the channel quality of the user equipment and interference caused by the user equipment to other user equipments in a predetermined range; and determine, according to the credit value of the user equipment, whether to limit the usage of a spectrum of the user equipment. By means of the electronic device, the wireless communication method, and the computer-readable storage medium of the present disclosure, a spectrum usage behavior of a user equipment during a spectrum sharing process can be quantitatively evaluated, so as to manage and control a behavior of the user equipment in a streamlined manner, reduce inter-user-equipment interference, and improve the total utility of a system.

Abstract: An electronic device includes a processing circuit, configured to: determine an interference relationship graph between multiple base station devices according to environmental information and/or transmit beam information of each of the multiple base station devices; determine a uplink and downlink subframe configuration mode of each base station device according to the interference relationship graph; and determine a transmission time period of each base station device according to the uplink and downlink subframe configuration mode of each base station device, so that transmission time periods of two adjacent base station devices having different uplink and downlink subframe configuration modes do not overlap.

Abstract: A management electronic device includes a processing circuit configured to: obtain a spectrum in an N-th round of spectrum trading and acquire the interference received by the management electronic device when an electronic device uses the traded spectrum; receive the interference received by another electronic device as determined by another electronic device related to spectrum trading; determine competition rights parameters of the management electronic device and the other electronic device, respectively, the competition rights parameters representing the credibility of the electronic devices and the magnitude of competitiveness when competing for management rights in an N+1-th round of spectrum trading; and select a new management electronic device on the basis of at least one among the interference and the competition rights parameters, the new management electronic device having management rights in the N+1-th round of spectrum trading, instead of the management electronic device having management righ

Abstract: Methods, and apparatus, enabling an originating service provider to automatically obtain from a 3rd party service provider and run a software service online. Method comprising: originating service provider negotiating license with 3rd party service provider over certain software service run by 3rd party service provider; license stipulating life cycle information of software service, enabling originating service provider to automatically obtain software service; 3rd party provider delivering software service to originating service provider in response to agreements of license; and originating service provider automatically deploying software service in self-hosted environment according to stipulation of the license.

Abstract: Embodiments of the present disclosure may include a method and apparatus for obtaining the content in a screenshot. In the embodiments of the present disclosure, content organization information associated with the screenshot may be obtained, wherein the content organization information may include the structure and data of one or more data objects associated with the content in the screenshot. The content in the screenshot may be determined based on the content organization information.

Abstract: Embodiments of the present disclosure may include a method and apparatus for obtaining the content in a screenshot. In the embodiments of the present disclosure, content organization information associated with the screenshot may be obtained, wherein the content organization information may include the structure and data of one or more data objects associated with the content in the screenshot. The content in the screenshot may be determined based on the content organization information.

Abstract: Embodiments of the present disclosure may include a method and apparatus for obtaining the content in a screenshot. In the embodiments of the present disclosure, content organization information associated with the screenshot may be obtained, wherein the content organization information may include the structure and data of one or more data objects associated with the content in the screenshot. The content in the screenshot may be determined based on the content organization information.