Abstract: A base station antenna including a substrate, a plurality of oscillators, a control assembly, and a dielectric plate is provided. The substrate includes a first surface and a second surface disposed opposite to the first surface. The plurality of oscillators are disposed on the first surface of the substrate. The control assembly is disposed on the second surface of the substrate and electrically connected to the plurality of oscillators. The dielectric plate is disposed corresponding to the first surface of the substrate, and the plurality of oscillators are disposed between the first surface and the dielectric plate. Through the above arrangement, the base station antenna can have lower construction cost and debugging labor cost, and can eliminate influences of an antenna cover on antenna radiation performance at the same time.

Abstract: A power divider includes a substrate which includes an input terminal, a microstrip, a short-circuit stub, an open-circuit stub, a first output terminal and a second output terminal. One end of the microstrip is electrically connected to the input terminal. One end of the short-circuit stub is electrically connected to the microstrip. The first output terminal is electrically connected to the other end of the microstrip and the open-circuit stub. The second output terminal is electrically connected to the other end of the microstrip. Through impedance matching of the open-circuit stub at the first output terminal, the range of the radiated electric field at the second output terminal is reduced, and the bend slope attenuation may be carried out under the wide frequency band of 700 MHz. Therefore, the radiated electric field of the antenna can still be reduced without adjusting the antenna gain in a wide frequency band.

Abstract: An oscillator antenna unit and an antenna are disclosed. The oscillator antenna comprises a plurality of oscillator arms and a guiding sheet. The plurality of oscillator arms extend outwards along a middle axle of the oscillator antenna unit and are arranged at an interval from one another. Extension directions of the oscillator arms form a first plane, and the guiding sheet parallel to the first plane is arranged above the oscillator arms and has a predetermined interval therewith. The antenna comprises at least two oscillator antenna units arranged in an array. Therefore, the technical solution of the embodiment of the present disclosure may improve the isolation and achieve a better decoupling effect.

Abstract: Disclosed is a feed network, which includes a printed circuit board, two microstrip power dividers and two microstrip combiners, and the two microstrip power dividers and two microstrip combiners arranged on the printed circuit board. A microstrip structure of each microstrip power divider is configured to realize impedance matching. Input ends of the two microstrip power divider are configured as two input ends of the feed network, two input ends of each microstrip combiner are respectively connected to one output end of each microstrip power divider, and output ends of the two microstrip combiners are configured as two output ends of the feed network, so that a multiple-input multiple-output feed network is realized. Therefore, when the feed network is applied to a base station antenna, all the radiation units are arranged in a linear matrix to achieve the effect of miniaturization of the base station antenna.

Abstract: The present disclosure discloses a phase shifter including a circuit board, a substrate, and a plurality of cables. Each of the plurality of cables includes a first insulation layer, an outer conductive layer and an inner conductive layer. The outer conductive layer is surrounded by the first insulation layer. The inner conductive layer is spaced apart from the outer conductive layer. The circuit board is electrically connected to the inner conductive layer of each of the plurality of cables. The substrate includes a plurality of tubes for ground, and the circuit board is disposed on the substrate. At least a part of each of the plurality of cables passes through at least one of the plurality of tubes, and the first insulation layer of each of the plurality of cables is positioned between the outer conductive layer and the corresponding tube and forms electrical coupling between the outer conductive layer and the corresponding tube.

Abstract: The present disclosure provides a communication method and apparatus. The method may include: A terminal device receives a first timer from a network device that indicates a first duration after which the terminal device initiates periodic connection establishment to the network device. The first duration is greater than or equal to a duration of the terminal device in a non-coverage area of a satellite. The terminal device activates the first timer when the terminal device determines that the terminal device leaves a coverage area of the satellite.

Abstract: This application provides a communication method and apparatus. A first mobility management function entity may receive event information from a unified data management function entity, where the event information indicates a first-type terminal event. Therefore, when a terminal apparatus is reachable, the first mobility management function entity may send, based on the event information, a terminal event report to an application function entity that subscribes to the first-type terminal event, thereby improving pertinence of sending the terminal event report.

Abstract: A cable connection device is configured for connecting a pair of cables in a feed network and includes a feeder box having a cavity and a circuit board located in the cavity. The feeder box includes a bottom wall and at least one side wall. The circuit board has an upper surface and a lower surface opposite to the upper surface. The lower surface is fixedly connected to the bottom wall. The side wall extends from an edge of the bottom wall toward the upper surface and further extends beyond the upper surface. The side wall defines a pair of through holes. The pair of cables pass through the pair of through holes in a one-to-one correspondence manner. The pair of cables are electrically connected to the upper surface of the circuit board.

Abstract: The present disclosure provides a phase shifting device and a base station antenna. The phase shifting device comprises a driving module, a transmission rack plate, and a plurality of annular phase shifters. The driving module comprises a transmission rod. The transmission rack plate comprises a transmission nut, through which the transmission rack plate is pivotally connected to the transmission rod of the driving module. The plurality of annular phase shifters are disposed on the periphery of the transmission rack plate at intervals and are respectively engaged with the transmission rack plate. The rotation of the transmission rod drives the transmission nut to move back and forth on the transmission rod, and along with the back and forth movement of the transmission nut, the transmission rack plate drives the plurality of annular phase shifters to rotate.

Abstract: Disclosed is a base station antenna, which includes a substrate and an antenna sub-array. The antenna sub-array includes a feeding plate, a plurality of radiation units, and two metal baffles. The feeding plate is disposed on the substrate. The plurality of radiation units are disposed on the feeding plate along a first direction and electrically connected to the feeding plate. The two metal baffles are respectively disposed on two sides of the feeding plate along a second direction perpendicular to the first direction, and each metal baffle extends along the first direction. Each metal baffle is provided with an opening slot, and the length of the opening slot along the first direction corresponds to a wavelength of a center frequency of the base station antenna. Therefore, the base station antenna can achieve the technical effects of converging the horizontal beam width and optimizing the cross polarization ratio.

Abstract: Embodiments of this disclosure provide a positioning method, an apparatus, and a system, so that a network side obtains accurate geographical location information of a terminal device in time in a satellite communication scenario. The method includes: After determining that a trigger condition occurs, an access network device sends first location information of a terminal device to a core network device, where the first location information includes a first tracking area identity TAI, and the first TAI is an identifier of a tracking area in which the terminal device is currently located.

Abstract: This application provides a network node selection method and apparatus. An SMF network element obtains transmission capability information of an access network device, and selects, for a terminal device based on the transmission capability information of the access network device, a UPF network element that supports at least one transmission capability included in the transmission capability information. In this process, the SMF network element obtains a transmission capability of the access network device, and selects the UPF network element based on the transmission capability of the access network device. The selected UPF network element supports the transmission capability used by the access network device, so that data can be successfully transmitted between the access network device and the UPF network element. Therefore, a data transmission success rate is improved.

Abstract: Embodiments of this application relate to the field of communications technologies, and in particular, to a communication method and a communications apparatus. The solution includes: sending, by a source access network device, a first data packet of a terminal to a target access network device; and when the source access network device determines that the target access network device has received the first data packet, sending, by the source access network device, a first message to the terminal, where the first message is used to indicate the terminal to hand over to the target access network device.

Abstract: This application provides a communication method, a communication apparatus, and a communication system. The method includes: obtain satellite coverage information of a terminal device; determining, based on satellite coverage information of the terminal device, at least one cycle of a periodic registration cycle of the terminal device, an extended discontinuous reception (eDRX) cycle, or a periodic tracking area update (TAU) cycle; and sending the at least one cycle to the terminal device. The at least one cycle can be used by terminal device to perform certain procedure including periodic registration, or periodic tracking area update.

Abstract: This application provides a method for providing a communication sensing service. In the method, a first sensing network element in a wireless communication network sends a sensing control request message to a second sensing network element, and controls the second sensing network element to detect and/or collect sensing data. After obtaining the sensing data through detection, the second sensing network element provides the sensing data to the first sensing network element, and the first sensing network element provides a sensing service based on the sensing data, to provide an end-to-end sensing service.

Abstract: This application provides a sensory data transmission method. The method includes: A first sensing network element sends first address information of the first sensing network element to a second sensing network element. The first address information is used to establish a first data channel for transmitting sensory data between the first sensing network element and the second sensing network element. The first sensing network element sends a first request message to the second sensing network element. The first request message is used to request the second sensing network element to perform a first sensing operation. The first sensing network element receives first data information that is sent by the second sensing network element through the first data channel. The first data information is generated by the second sensing network element by performing the first sensing operation based on the first request message.

Abstract: This application provides a UE sensing method and a communication apparatus. An SF network element, an NEF network element, an AMF network element, an SMF network element, a RAN network element, or the like may perform sensing detection on UE for a sensing requester or the UE, and provide a corresponding sensing service for the sensing requester or the UE. In some implementations, the sensing requester may be the UE, or may be an application function AF. Usually, the AF may directly request the sensing service from a communication system (for example, a 5GS), and the UE may request the sensing service from a communication system (for example, a 5GS), may perform sensing by directly requesting a sensing resource from the RAN network element based on a sensing requirement of the UE, or may perform sensing in collaboration with the RAN network element, and obtain sensing data, so that the sensing data can be quickly and efficiently obtained.

Abstract: The technology of this application relates to a method for selecting a network element in a communication sensing service and a communication apparatus. In the method, a radio access network element, an access and mobility management function network element, and a sensing network element each having a sensing capability can register the sensing capability with a network repository function network element. After receiving a sensing service request, a network exposure function network element, the access and mobility management function network element, or the sensing network element selects an appropriate network element based on the sensing capability of each network element (for example, the radio access network element, the access and mobility management function network element, or the sensing network element) registered with the network repository function network element, to select the appropriate network element for a sensing service, to support the sensing service in an end-to-end manner.

Abstract: This application provides a method for processing a change in a radio capability of a terminal apparatus and an apparatus. The method includes: receiving, by an access network apparatus, indication information, where the access network apparatus stores radio capability information of a terminal apparatus, and the indication information is used to indicate that a radio capability of the terminal apparatus changes, or is used to request a current radio capability of the terminal apparatus from the access network apparatus; and obtaining, by the access network apparatus, radio capability information of the terminal apparatus according to the indication information. According to this application, communication efficiency of a radio control resource connection performed when a radio capability of the UE changes in a suspend state can be improved.

Abstract: A power divider includes a substrate. The substrate includes an input terminal, a microstrip, a short-circuit stud, an open-circuit stud, a first output terminal and a second output terminal. One end of the microstrip is electrically connected to the input terminal. One end of the short-circuit stud is electrically connected to the microstrip. The first output terminal is electrically connected to the other end of the microstrip and the open-circuit stud. The second output terminal is electrically connected to the other end of the microstrip. Through impedance matching of the open-circuit stud at the first output terminal, the range of the radiated electric field at the second output terminal is reduced, and the bend slope attenuation may be carried out under the wide frequency band of 700 MHz. Therefore, the radiated electric field of the antenna can still be reduced without adjusting the antenna gain in a wide frequency band.