Abstract: Examples of performing selective Fine Timing Measurement (FTM) are described. For an FTM scan cycle, a first AP (i.e., an initiator) may determine scanning parameter values of a plurality of second APs (i.e., potential responders) based on previously performed FTM scans. The first AP may determine weights of the plurality of second APs based on the scanning parameter values and select a set of target APs based on the weights. The first AP may then scan the set of target APs for the FTM scan so that the rest of the plurality of second APs are relieved from participating in the FTM scan thereby reducing the performance impact on the rest of the plurality of second APs. After the FTM scan cycle is completed, the first AP may update the weights and select another set of target APs based on the updated weights to perform another FTM scan cycle.

Abstract: An antenna element with a filtering function, a filtering radiation unit, and an antenna. The antenna element is tubular, with a spiral slit arranged around the periphery of the tubular antenna element and extending in an axial direction. The filtering radiation unit includes a support column, and an upper part of the support column is electrically connected to at least one antenna element. The antenna includes a reflecting plate, and at least one filtering radiation unit is fixedly arranged on the reflecting plate. The antenna element with a filtering function has functions of radiating signals and suppressing interference simultaneously. The filtering radiation unit can cooperate with a high-frequency radiation element during use to achieve the aim of radiating a high-frequency signal and a low-frequency signal simultaneously. The antenna is good in performance, small in size, and high in integration degree.

Abstract: A microstrip line filtering radiation oscillator, a filtering radiation unit, and an antenna, the oscillator includes a substrate. A plurality of first metal sheets parallel to each other are arranged at intervals on a front surface of the substrate, a plurality of second metal sheets parallel to each other are arranged at intervals on a back surface of the substrate, and the first and second metal sheets are correspondingly staggered and coupled by a coupling part running through the substrate. The microstrip line filtering radiation oscillator has functions of signal radiation and interference suppression. The filtering radiation unit includes at least one oscillator and can be used in conjunction with a high-frequency radiation unit, to radiate high-frequency and low-frequency signals simultaneously.

Abstract: An antenna element with a filtering function, a filtering radiation unit, and an antenna. The antenna element is tubular, with a spiral slit arranged around the periphery of the tubular antenna element and extending in an axial direction. The filtering radiation unit includes a support column, and an upper part of the support column is electrically connected to at least one antenna element. The antenna includes a reflecting plate, and at least one filtering radiation unit is fixedly arranged on the reflecting plate. The antenna element with a filtering function has functions of radiating signals and suppressing interference simultaneously. The filtering radiation unit can cooperate with a high-frequency radiation element during use to achieve the aim of radiating a high-frequency signal and a low-frequency signal simultaneously. The antenna is good in performance, small in size, and high in integration degree.

Abstract: An omnidirectional array antenna includes N omnidirectional subarray units circumferentially arranged to form a circular array, where each of the omnidirectional subarray units includes p coaxially-arrayed symmetrical oscillators, and N and p are both natural numbers. The omnidirectional array antenna beamforming method includes various omnidirectional subarray units stimulated by equiamplitude, in-phase or out-phase stimulation, thereby forming different types of transaction beams, such as an omnidirectional beam, a double-beam, a triple-beam, and a quadruple-beam.

Abstract: An antenna array module includes at least two antenna units mounted on a surface of a feed network circuit board with two power division circuits, and a filter mounted on a surface of the feed network circuit board with two coupling circuits. Each power division circuit includes an input end and a plurality of output ends. One power division circuit feeds an antenna unit for ?45° polarization, and the other power division circuit feeds an antenna unit for +45° polarization. Each coupling circuit includes a radio frequency input end and an output end, and the output end of the coupling circuit is electrically connected to the input end of the power division circuit. The filter includes at least two output ends that are electrically connected to the radio frequency input end of the coupling circuit. A base station antenna includes a mounting structure and a connection structure.

Abstract: A radiation element, as well as an antenna unit and an antenna array thereof. The radiation element includes a metal radiation sheet, a plastic support structure, and a feeding balun. The antenna unit further includes a feeding network. Laser Direct Structuring (LDS) technology is used to manufacture the radiation element, the antenna unit and the antenna array thereof, eliminating metal reflection sheets; further surface mount technology (SMT) is employed to weld the antenna unit and the feeding network together, the antenna being light-weight and simple to assemble.

Abstract: An integrated antenna element includes a top PCB and a bottom PCB arranged in a laminate structure. Radiating surface units are arranged between the top PCB and the bottom PCB. A first balun and a second balun set separately set on the top and bottom PCBs respectively, each for different polarization. The integrated antenna element is capable of transmitting signals to a base station and receiving signals from a base station.

Abstract: An integrated antenna unit includes an integrated radiating element; a reflect board beneath the integrated radiating element without a direct contact therebetween; and an RF component device for processing signal of interest for a radio unit. The RF component device is placed beneath the integrated radiating element and on the reflecting board, and serves a support of a fixture structure of the radiating element to the reflecting board; whereby a space between the radiating element and the reflecting board can be efficiently used for the RF component device.

Abstract: An antenna-unit (110) for at least dual-FDD bands includes a first combiner (100) splitting its input (101) into at least two outputs (102, 103). Each output (102, 103) operates in at least two narrow-bands from two different FDD systems, and is respectively connected to a second and third combiners (200, 300). The second and third combiners (200, 300) are respectively connected with a first RF circuit (800, 900) enabling separation of two different FDD channels in an inverted Transmitter/Receiver fashion. An antenna system (700) based on the antenna unit (110) includes a set of columns of dual-polarized radiating elements (500) arranged on a reflector (702), and the first RF circuit (800,900) is connected with a second RF circuit (10) of the Base Station processing, SDR is set along with the RF circuit (10) to enable 3D beamforming features as well as independent system link control for optimization purpose.

Abstract: The disclosure provides a housing of a battery module and a battery module including the housing. The housing includes a first side plate, a second side plate, and a plurality of accommodating cavities for accommodating battery cells being defined separately between the first side plate and the second side plate; the first side plate includes a first outer surface, and a plurality of latching grooves being defined separately at the first outer surface; the second side plate includes a second outer surface, and a plurality of fixing blocks being defined separately at the second outer surface, and one fixing block is engaged with one latching groove. The fixing blocks of the housing can cooperate with the latching grooves of a next housing to achieve the detachable connection of the housings of a battery module. The number of the housing of a battery module can be increased or reduced as needed.

Abstract: An antenna array module includes at least two antenna units mounted on a surface of a feed network circuit board with two power division circuits, and a filter mounted on a surface of the feed network circuit board with two coupling circuits. Each power division circuit includes an input end and a plurality of output ends. One power division circuit feeds an antenna unit for ?45° polarization, and the other power division circuit feeds an antenna unit for +45° polarization. Each coupling circuit includes a radio frequency input end and an output end, and the output end of the coupling circuit is electrically connected to the input end of the power division circuit. The filter includes at least two output ends that are electrically connected to the radio frequency input end of the coupling circuit. A base station antenna includes a mounting structure and a connection structure.

Abstract: An omnidirectional array antenna includes N omnidirectional subarray units circumferentially arranged to form a circular array, where each of the omnidirectional subarray units includes p coaxially-arrayed symmetrical oscillators, and N and p are both natural numbers. The omnidirectional array antenna beamforming method includes various omnidirectional subarray units stimulated by equiamplitude, in-phase or out-phase stimulation, thereby forming different types of transaction beams, such as an omnidirectional beam, a double-beam, a triple-beam, and a quadruple-beam.

Abstract: A network device and method for network selection and network switching are provided. The network device is communicating with user equipment (UE). The network device includes a processor and a memory for storing instructions executable by the processor. The processor is configured to request the UE to report speed information, receive a measurement report from the UE, the measurement report including speed information of the UE, and determine whether to switch network for the UE based on the speed information.

Abstract: An integrated antenna unit where two dual-polarized radiating elements are connected on a PCB serving reflecting board as well as a filter lid of two-band pass filters. Each of two band-pass filter is connected directly to a two-way power splitter serving connection of same polarization from the two radiating elements. Two walls running parallel are extending at the band-pass filter edges to support the cavity of the filters and at same time serving as reflecting walls enabling to control the 3 dB azimuth beam generated by the radiating elements. Next, a multi-array antenna by collocating multiple arrays of the integrated antenna units.

Abstract: A radiation element, as well as an antenna unit and an antenna array thereof. The radiation element includes a metal radiation sheet, a plastic support structure, and a feeding balun. The antenna unit further includes a feeding network. Laser Direct Structuring (LDS) technology is used to manufacture the radiation element, the antenna unit and the antenna array thereof, eliminating metal reflection sheets; further surface mount technology (SMT) is employed to weld the antenna unit and the feeding network together, the antenna being light-weight and simple to assemble.

Abstract: An integrated antenna unit includes an integrated radiating element; a reflect board beneath the integrated radiating element without a direct contact therebetween; and an RF component device for processing signal of interest for a radio unit. The RF component device is placed beneath the integrated radiating element and on the reflecting board, and serves a support of a fixture structure of the radiating element to the reflecting board; whereby a space between the radiating element and the reflecting board can be efficiently used for the RF component device.

Abstract: An integrated antenna element includes a compact printed board and at least two dual-polarized radiating elements. The compact printed board includes a top PCB and a bottom PCB in a laminate structure. Each radiating element includes a radiating surface unit and a layered-balun. The radiating surface unit is placed between the top PCB and the bottom PCB. The layered-balun includes a first balun and a second balun set separately set on the different PCBs each for different polarization. An antenna unit and a multi-array antenna are accordingly obtained.

Abstract: A radiation system includes a low-frequency radiator having a bowl-shaped structure, a high-frequency radiator arranged inside the bowl-shaped structure of the low-frequency radiator, and a metamaterial reflector arranged below the high-frequency radiator. The metamaterial reflector includes a metasurface arranged below the high-frequency radiator and a solid metal plane arranged below the metasurface.

Abstract: An antenna-unit (110) for at least dual-FDD bands includes a first combiner (100) splitting its input (101) into at least two outputs (102, 103). Each output (102, 103) operates in at least two narrow-bands from two different FDD systems, and is respectively connected to a second and third combiners (200, 300). The second and third combiners (200, 300) are respectively connected with a first RF circuit (800, 900) enabling separation of two different FDD channels in an inverted Transmitter/Receiver fashion. An antenna system (700) based on the antenna unit (110) includes a set of columns of dual-polarized radiating elements (500) arranged on a reflector (702), and the first RF circuit (800,900) is connected with a second RF circuit (10) of the Base Station processing, SDR is set along with the RF circuit (10) to enable 3D beamforming features as well as independent system link control for optimization purpose.