Abstract: The present disclosure discloses a sintered neodymium-iron-boron magnet and a preparation method thereof. The sintered neodymium-iron-boron magnet includes the following raw materials in mass percentage: 1%-40% of an iron powder or a steel powder with a magnetic induction intensity of more than 1.2 T, not more than 10% of a praseodymium-neodymium metal hydride powder, and a remainder of a neodymium-iron-boron fine powder, wherein the mass percentages of the above raw materials add up to 100%. The preparation method includes: weighing the raw materials in mass percentage; mixing the weighed raw materials uniformly, and then subjecting to magnetic-field press molding, isostatic pressing, sintering and tempering to obtain the sintered neodymium-iron-boron magnet.

Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.

Abstract: A follow-hold switch circuit comprising: a follower; a sampling sub-circuit for voltage sampling; a bootstrap-control sub-circuit, which provides a bootstrap voltage to the sampling sub-circuit when the circuit is in a following state; a sampling-switch-control sub-circuit, which provides a common-mode voltage to a bootstrap capacitor in the bootstrap-control sub-circuit when the circuit is in a holding state; the follower is connected to an output of the sampling sub-circuit; the sampling sub-circuit is connected to the bootstrap-control sub-circuit and the sampling-switch-control sub-circuit respectively through a sampling switch; the present disclosure can effectively improve the linearity of sampling switches.

Abstract: Embodiments of this application disclose a method for deploying a virtual machine and a container, and an apparatus, to implement both container deployment and VM deployment in a MEC system. The method includes: A unified orchestration function entity receives a deployment request, and determines that a deployment manner of an application is the container deployment or the VM deployment based on the deployment request. Further, if the deployment manner of the application is the container deployment, the unified orchestration function entity sends a first resource allocation request to an architecture manager, to request the architecture manager to deploy a container that can run an instance of the application; or if the deployment manner of the application is the VM deployment, the unified orchestration function entity sends a second resource allocation request to a VIM, to request the VIM to deploy a VM that can run the instance of the application.

Abstract: Embodiments of the present invention provide a baseband processing unit, a radio remote unit, and a communication method. The baseband processing unit includes: a millimeter wave band transceiver, configured to receive an interface signal sent by a radio remote unit by using a millimeter wave band; an interface signal processing module, configured to convert the interface signal received by the millimeter wave band transceiver into uplink baseband data; and a baseband data processing module, configured to: process the uplink baseband data to obtain an uplink baseband signal, and send the uplink baseband signal to a gateway. In the embodiments of the present invention, the baseband processing unit and the radio remote unit may communicate by using the millimeter wave band, thereby saving optical fiber resources.

Abstract: A method for establishing a virtual base station includes: receiving a message of poor network coverage sent by an operator server, where the message includes information of a location where network coverage is poor and information of a second mode; acquiring, according to the information of the location and the information of the second mode, a multimode terminal capable of being compatible with the second mode; returning an identification of the multimode terminal to the operator server; receiving a virtual base station establishment request message sent by the operator server; forwarding, according to the identification of the multimode terminal, the virtual base station establishment request message to the multimode terminal; and forwarding a virtual base station successfully-established message to the operator server.

Abstract: The present invention discloses a method for performing communications in a wireless software defined network SDN and an apparatus thereof. The method includes: generating a message in a first format; and transmitting the message to a wireless network control device of a control plane, so that the wireless network control device obtains content in the message according to the first format. According to the method for performing communications in the wireless software defined network SDN and the apparatus thereof in embodiments of the present invention, the wireless network control device in the wireless SDN may perform communications with a base station and a user equipment by defining the message content and the message format for performing communications between the wireless network control device of the control plane and the base station as well as the user equipment of a data plane, thereby enhancing feasibility of a wireless SDN architecture.

Abstract: A location movement method for a self-mobile node, and a related device are provided. A self-mobile node can move to a corresponding initial to-be-assisted location range according to initial to-be-assisted location information determined by the self-mobile node or determined by a control device; and after moving to the initial to-be-assisted location range, can move to a final finely adjusted to-be-assisted location range according to finely adjusted to-be-assisted location information determined by the self-mobile node or determined by the control device, and provide an assistance service for another to-be-assisted node within the final to-be-assisted location range. Therefore, a currently existing problem is resolved: Because a precise indoor map cannot be obtained, a self-mobile node cannot move to an accurate to-be-assisted area based on an indoor map. As a result, accuracy and applicability of on-demand movement of the self-mobile node are improved.

Abstract: Embodiments of the present invention disclose a method and an apparatus for creating a virtual base station. The creating method includes: receiving a virtual base station creation request sent by a third-party server; sending a virtual machine creation request to an RAN; receiving a virtual machine creation complete response sent by the RAN; sending a base station image load request to the RAN; receiving a base station image load complete response sent by the RAN; sending a virtual base station creation complete response to the third-party server, where the virtual base station creation complete response includes a virtual base station ID. The present invention can realize creation of a virtual base station.

Abstract: A massage device includes a main body, a vibrator, a control switch and a suction arrangement. The main body has a massaging portion, a handle portion, and a receiving cavity. The main body has an inwardly curved surface formed on the massaging portion. The vibrator is received in the receiving cavity at the massaging portion of the main body. The suction arrangement includes a guiding member and a suction pump. The guiding member is outwardly extended from the main body and has an air passage channel communicating the receiving cavity with ambient atmosphere. The suction pump is received in the receiving cavity for drawing air from the ambient atmosphere to the receiving cavity. The control switch is provided on the main body for selectively switching the vibrator and the suction pump.

Abstract: Embodiments of the present invention disclose a function migration method, an apparatus, and a system, which are applied to the communications field, and a network can actively transfer a function service of a user between network nodes. The method is specifically: sending, by a first network node, a function migration request to the second network node; receiving, by the first network node, a function migration response sent by the second network node; and sending, by the first network node, a migration execution instruction to the second network node, where the migration execution instruction is used to instruct the second network node to perform the first function service on the first user.

Abstract: A location movement method for a self-mobile node, and a related device are provided. A self-mobile node can move to a corresponding initial to-be-assisted location range according to initial to-be-assisted location information determined by the self-mobile node or determined by a control device; and after moving to the initial to-be-assisted location range, can move to a final finely adjusted to-be-assisted location range according to finely adjusted to-be-assisted location information determined by the self-mobile node or determined by the control device, and provide an assistance service for another to-be-assisted node within the final to-be-assisted location range. Therefore, a currently existing problem is resolved: Because a precise indoor map cannot be obtained, a self-mobile node cannot move to an accurate to-be-assisted area based on an indoor map. As a result, accuracy and applicability of on-demand movement of the self-mobile node are improved.

Abstract: Embodiments of the present invention disclose a method and an apparatus for creating a virtual base station. The creating method includes: receiving a virtual base station creation request sent by a third-party server; sending a virtual machine creation request to an RAN; receiving a virtual machine creation complete response sent by the RAN; sending a base station image load request to the RAN; receiving a base station image load complete response sent by the RAN; sending a virtual base station creation complete response to the third-party server, where the virtual base station creation complete response includes a virtual base station ID. The present invention can realize creation of a virtual base station.

Abstract: Embodiments of the present invention disclose a method and an apparatus for creating a virtual base station. The creating method includes: receiving a virtual base station creation request sent by a third-party server; sending a virtual machine creation request to an RAN; receiving a virtual machine creation complete response sent by the RAN; sending a base station image load request to the RAN; receiving a base station image load complete response sent by the RAN; sending a virtual base station creation complete response to the third-party server, where the virtual base station creation complete response includes a virtual base station ID. The present invention can realize creation of a virtual base station.

Abstract: Embodiments of the present invention provide a baseband processing unit, a radio remote unit, and a communication method. The baseband processing unit includes: a millimeter wave band transceiver, configured to receive an interface signal sent by a radio remote unit by using a millimeter wave band; an interface signal processing module, configured to convert the interface signal received by the millimeter wave band transceiver into uplink baseband data; and a baseband data processing module, configured to: process the uplink baseband data to obtain an uplink baseband signal, and send the uplink baseband signal to a gateway. In the embodiments of the present invention, the baseband processing unit and the radio remote unit may communicate by using the millimeter wave band, thereby saving optical fiber resources.

Abstract: The present invention discloses a method for performing communications in a wireless software defined network SDN and an apparatus thereof. The method includes: generating a message in a first format; and transmitting the message to a wireless network control device of a control plane, so that the wireless network control device obtains content in the message according to the first format. According to the method for performing communications in the wireless software defined network SDN and the apparatus thereof in embodiments of the present invention, the wireless network control device in the wireless SDN may perform communications with a base station and a user equipment by defining the message content and the message format for performing communications between the wireless network control device of the control plane and the base station as well as the user equipment of a data plane, thereby enhancing feasibility of a wireless SDN architecture.