Abstract: An underwater sonar device and an underwater detecting system. The underwater sonar device comprises a main body, a propeller, a detector and a hydrofoil assembly. The main body is an axisymmetric structure. The propeller, the detector, and the hydrofoil assembly are disposed on the main body. The detector is configured to detect and image an underwater target. The propeller is configured to drive the main body to move along a longitudinal direction and a vertical direction, and control a pitch angle, a roll angle, and a yaw angle of the main body. The hydrofoil assembly is disposed at a back of the main body, and is configured to adjust an included angle between the hydrofoil assembly and the longitudinal direction of the main body automatically based on water resistance on the hydrofoil assembly to keep the sonar device navigating at a fixed depth.

Abstract: The present application relates to the field of communications. Disclosed are an access type selection method and device and a storage medium, for solving the problem in the prior art that the location service for a UE cannot be implemented under an access of a 3GPP access type and a non-3GPP access type when AMFs servicing the UE are different. The method comprises: a gateway mobile location center (GMLC) receives a second request sent from a location service (LCS) client; and the GMLC determines an access type for transmitting location information.

Abstract: A location resource coordinating method, a location resource coordinating device, a network node, a UE, and a base station are provided. The location resource coordinating method includes: sending location resource coordination information to a base station before performing location measurement for a serving UE; the location resource coordination information includes identity information of a target cell of the base station, and carries dedicated location resource information configured for the target cell, or the location resource coordination information includes the identity information of a target cell for which the base station activates a location resource, and instructs the base station to activate pre-configured dedicated location resource information; the base station is a base station related to the serving UE.

Abstract: Disclosed are an information transmission method and device, used for avoiding paging of a service network of a universal subscriber identity module (USIM) when a multiple-USIM terminal leave the service network, thereby saving network resources. The method provided in the present application comprises: when the multiple-USIM terminal needs to leave the service network of a USIM, sending to a network side an instruction for entering a Mobile Initiated Connection Only (MICO) mode or a Power Saving Mode (PSM); and upon the receipt of a confirmation message from the network side in response to the instruction, leaving the service network of the USIM.

Abstract: The present disclosure provides a positioning management method, a positioning management device, an NG-RAN node and a core network node. The positioning management method includes: receiving a positioning request message from the core network node; performing positioning measurement in accordance with the positioning request message, so as to acquire a positioning measurement result; and acquiring position information about a target UE in accordance with the positioning measurement result, and feeding the position information back to the core network node.

Abstract: A data transmission method, a data transmission apparatus, and a session management device are provided. The data transmission method includes obtaining state information of a UE to which downlink data is destined; selecting, for the UE, a first gateway function entity for transmission of the current downlink data according to the state information of the UE; determining a first data transmission path between the first gateway function entity and a second gateway function entity; and performing the transmission of the downlink data according to the first data transmission path.

Abstract: Embodiments of the present invention relate to the technical field of wireless communications, and in particular to an access control method and device, for use in resolving the problem in the prior art that a user equipment cannot securely access an access points group (APG). According to the embodiments of the present invention, when a user equipment needs to access a network, the user equipment conducts network-layer two-way authentication with a local service center; after the network-layer two-way authentication succeeds, the user equipment conducts access-layer two-way authentication with a corresponding APG so as to enable the user equipment to access the corresponding APG after the access-layer two-way authentication succeeds. The embodiments of the present invention use dual-layer two-way authentication, and enables the user equipment to access a corresponding APG after the dual-layer two-way authentication succeeds, so that the user equipment can securely access the corresponding APG.

Abstract: Embodiments of the present invention relate to the technical field of wireless communications, especially a method and device for joining an access node group (APG), for use in resolving the problem in the prior art of an access node being unable to join an APG securely. In the embodiments of the present invention, the access node performs network layer two-way authentication with a local service center after determining to join the APG; and the access node performs network configuration according to configuration information in a network configuration message after receiving the network configuration message sent by the local service center. Therefore, an APG corresponding to a user equipment follows the user equipment, and at the same time, it can be ensured that an access node may join the APG securely.

Abstract: The present disclosure provides a selection method, a selection device, a management function entity, an access network node, a GMLC and a NRF. The selection method of a location management function entity includes: receiving a positioning request message sent by a GMLC; the positioning request message including an identifier of a target UE and a positioning QOS requirement; obtaining information of a wireless access network where the target UE is located; selecting a target LLMF entity according to the information of the wireless access network where the target UE is located, the positioning QOS requirement, and pre-stored related information of the LLMF entity.

Abstract: The present disclosure provides a method, a device and a terminal for location message transmission processing. The method for location message transmission processing is applied to an access network equipment and includes: performing LTE Positioning Protocol (LPP) message interaction with a terminal through a local location management function.

Abstract: A location resource coordinating method, a location resource coordinating device, a network node, a UE, and a base station are provided. The location resource coordinating method includes: sending location resource coordination information to a base station before performing location measurement for a serving UE; the location resource coordination information includes identity information of a target cell of the base station, and carries dedicated location resource information configured for the target cell, or the location resource coordination information includes the identity information of a target cell for which the base station activates a location resource, and instructs the base station to activate pre-configured dedicated location resource information; the base station is a base station related to the serving UE.

Abstract: The present disclosure provides a positioning management method, a positioning management device, an NG-RAN node and a core network node. The positioning management method includes: receiving a positioning request message from the core network node; performing positioning measurement in accordance with the positioning request message, so as to acquire a positioning measurement result; and acquiring position information about a target UE in accordance with the positioning measurement result, and feeding the position information back to the core network node.

Abstract: The present application relates to the technical field of communications. Disclosed are an access type selection method and device and a storage medium, for solving the technical problem in the prior art that the location service for a UE cannot be implemented under an access of a 3GPP access type and a non-3GPP access type when AMFs servicing the UE are different. The method comprises: a gateway mobile location center (GMLC) receives a second request sent from a location service (LCS) client; and the GMLC determines an access type for transmitting location information.

Abstract: The present application discloses a method and an apparatus for transmitting downlink data, to resolve the issue of erroneous transmission of downlink data of UE when the UE moves from an EPS network to a 5G network. The method comprises: after receiving a request message for updating a session management context of the UE, a session management function entity in embodiments of the present application determining that the UE has moved from a first network to a second network; the session management function entity notifying a user plane function entity to delete a user plane connection of the UE in the first network, and creating a user plane connection of the UE in the second network, such that the user plane function entity transmits downlink data of the UE through the newly created user plane connection.

Abstract: The present application discloses a method and an apparatus for transmitting downlink data, to resolve the issue of erroneous transmission of downlink data of UE when the UE moves from an EPS network to a 5G network. The method comprises: after receiving a request message for updating a session management context of the UE, a session management function entity in embodiments of the present application determining that the UE has moved from a first network to a second network; the session management function entity notifying a user plane function entity to delete a user plane connection of the UE in the first network, and creating a user plane connection of the UE in the second network, such that the user plane function entity transmits downlink data of the UE through the newly created user plane connection.

Abstract: Disclosed are a method and device for controlling set-up of a user side bearer, aiming to solve the problem of an unnecessary signaling overhead caused by the fact that a UE initiates a TAU process after an SGW deletes cached downlink data of the UE when a timer has timed out, and an MME still initiates a set-up process of a user side between the UE and a base station. The method comprises: in a tracking area updating (TAU) process, a mobility management entity (MME) determining that a serving gateway (SGW) needs to send cached downlink data to a terminal UE; and the MME initiating a set-up process of an air interface user side bearer of the UE.

Abstract: Embodiments of the present invention relate to the technical field of wireless communications, and in particular to an access control method and device, for use in resolving the problem in the prior art that a user equipment cannot securely access an access points group (APG). According to the embodiments of the present invention, when a user equipment needs to access a network, the user equipment conducts network-layer two-way authentication with a local service center; after the network-layer two-way authentication succeeds, the user equipment conducts access-layer two-way authentication with a corresponding APG so as to enable the user equipment to access the corresponding APG after the access-layer two-way authentication succeeds. The embodiments of the present invention use dual-layer two-way authentication, and enables the user equipment to access a corresponding APG after the dual-layer two-way authentication succeeds, so that the user equipment can securely access the corresponding APG.

Abstract: Embodiments of the present invention relate to the technical field of wireless communications, especially a method and device for joining an access node group (APG), for use in resolving the problem in the prior art of an access node being unable to join an APG securely. In the embodiments of the present invention, the access node performs network layer two-way authentication with a local service center after determining to join the APG; and the access node performs network configuration according to configuration information in a network configuration message after receiving the network configuration message sent by the local service center. Therefore, an APG corresponding to a user equipment follows the user equipment, and at the same time, it can be ensured that an access node may join the APG securely.

Abstract: A data transmission method, a data transmission apparatus, and a session management device are provided. The data transmission method includes obtaining state information of a UE to which downlink data is destined; selecting, for the UE, a first gateway function entity for transmission of the current downlink data according to the state information of the UE; determining a first data transmission path between the first gateway function entity and a second gateway function entity; and performing the transmission of the downlink data according to the first data transmission path.

Abstract: Embodiments of the present invention relate to an antenna array, an antenna apparatus, and a base station. The antenna array includes: at least two antenna sub-arrays, where the at least two antenna sub-arrays are arranged in a vertical direction, each of the antenna sub-arrays includes multiple radiating elements, and in at least two adjacent antenna sub-arrays in the vertical direction, radiating elements at corresponding positions in the respective antenna sub-arrays are arranged in a staggered manner in a horizontal direction. In the embodiments of the present invention, horizontal side lobes and vertical far side lobes in an antenna array pattern are reduced, and the ultra-wideband performance is improved.