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1.发明公开公开(公告)号：US20230268978A1
公开(公告)日：2023-08-24
申请号：US18310313
申请日：2023-05-01
申请人： Cambium Networks Ltd
CPC分类号： H04B7/086 , H01Q3/20 , H04B7/0888
摘要： A subscriber module of a fixed wireless access communication system comprises an offset Gregorian antenna arrangement, an array of antenna elements arranged as a feed, a beamforming network and a processor. The processor is configured to provide, to the beamformer, a pre-determined plurality of antenna weight vectors configured to form a plurality of beams, the orientations of the plurality of beams being arranged in a grid comprising a plurality of rows, each of the pre-determined plurality of antenna weight vectors being configured to form a respective beam from the primary reflector dish of the Gregorian antenna arrangement by forming a respective feed beam from the array of antenna elements. The relationship between the azimuth and elevation direction of each feed beam and the azimuth and elevation direction of the respective beam from the primary reflector dish is a non-linear function of azimuth and elevation.
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2.发明公开公开(公告)号：US20230217407A1
公开(公告)日：2023-07-06
申请号：US18179237
申请日：2023-03-06
CPC分类号： H04W64/003 , H04W4/029 , H04W16/18 , H04W48/16 , H04W48/20 , H04W84/045
摘要： A respective preferred installation height above ground level is determined for each of a plurality of locations for a subscriber module for receiving a radio link from an access point in a wireless network, the access point having a given height above ground level and a specified location, and the subscriber module being situated within a given geographical area including the location of the access point. The method comprises accessing elevation data for the given geographical area, processing the elevation data to generate a preferred height data file representing a preferred height for a subscriber module to be wirelessly visible by the access point at each of the plurality of locations and processing the required height data file to provide output data indicating the preferred height of the subscriber module as a function of location.
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3.发明申请公开(公告)号：US20210075484A1
公开(公告)日：2021-03-11
申请号：US17099475
申请日：2020-11-16
申请人： Cambium Networks Ltd
发明人： Antony JAMIN , Nigel KING , Andrew RIMMER , Peter STRONG
IPC分类号： H04B7/06 , H04B7/0452 , H04B7/0456
摘要： Interference mitigation for a MU-MIMO wireless communication network includes determining a MU-MIMO group of further wireless stations to which respective beams are to be formed, forming a first beam for reception of transmitted data from a second wireless station based on previously determined channel estimates. When the MU-MIMO group has fewer members than a number of beams which a beamforming weights matrix is configured to receive, forming an additional beam(s) being offset in angle of arrival by a respective pre-determined angle from the first beam for reception of the transmitted data from the second wireless station, and generating a decoded data stream from a data stream resulting from receipt of the transmitted data in the first beam and from respective data streams resulting from receipt of the transmitted data from the additional beam(s).
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公开(公告)号：US10854942B2
公开(公告)日：2020-12-01
申请号：US16272834
申请日：2019-02-11
摘要： A radio frequency transmission arrangement comprises a ground plate having an aperture comprising a slot with an elongate cross-section and substantially parallel sides, and a first and second transmission line. The thickness of the ground plate is greater than a width of the slot. The aperture is partially filled with a solid dielectric material and partially filled with air. The first transmission line comprises a first elongate conductor on a first side of the ground plate and has an end terminated with a first termination stub. The second transmission line comprises a second elongate conductor on the opposite side of the ground plate and has an end terminated with a second termination stub. The first transmission line is arranged to cross the slot at a point adjacent to the first termination stub, and the second transmission line is arranged to cross the slot at a point adjacent to the second termination stub.
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公开(公告)号：US20200275301A1
公开(公告)日：2020-08-27
申请号：US15931318
申请日：2020-05-13
申请人： Cambium Networks Ltd
发明人： Antony JAMIN , Mark THOMAS , Gregor DEAN
摘要： Data is transmitted from a first wireless station comprising first and second transmitters to a second wireless station comprising first and second receivers. In the absence of radio link failure detection, first data is transmitted via a first radio link from the first transmitter to the first receiver using a first subset of first radio resource blocks and transmitting second data via a second radio link from the second transmitter to the second receiver using second subset of the first radio resource blocks. The first and second radio links are monitored for a failure. If first radio link failure is detected, the second radio link is operated using a combination of the first and second subsets of the first radio resource blocks. If second radio link failure is detected, the first radio link is operated using a combination of the first and second subsets of the first radio resource blocks.
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公开(公告)号：US11936113B2
公开(公告)日：2024-03-19
申请号：US17534045
申请日：2021-11-23
申请人： Cambium Networks Ltd
发明人： Jomon Thomas , Deepu Nair , Visalakshy Tc , Nigel King , Varun Hegde
CPC分类号： H01Q21/08 , H01Q9/0414 , H01Q1/246 , H01Q1/42 , H01Q1/48
摘要： An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate, and a first, second, third and fourth elongate passive radiator, each comprising one or more substantially planar conductive parts which are electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. The third and fourth elongate passive radiators are disposed further from the linear array than are the first and second elongate passive radiators. Each of the third and fourth elongate passive radiators is narrower than and projects further from the ground plate than does each of the first and second elongate passive radiators.
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公开(公告)号：US11849383B2
公开(公告)日：2023-12-19
申请号：US17843498
申请日：2022-06-17
申请人： Cambium Networks Ltd
发明人： Kiran Avva , Rupam Khaitan , Yonghao Lin
IPC分类号： H04W40/24 , H04L45/00 , H04L45/741 , H04L45/748
CPC分类号： H04W40/248 , H04L45/66 , H04L45/741 , H04L45/748
摘要： Packets are routed in a data network comprising a wireless mesh network and a controller providing IPv6 management traffic to nodes of the wireless network. A monitor function and a route table manager are used to generate a route table relating IPv6 addresses to each of the nodes via a respective one of a plurality of POP nodes, by accessing a pre-configured topology file, determining the reachability of each of the plurality of POP nodes from the controller by periodically sending test messages from the monitor function to each POP and detecting acknowledgement of the test messages. If a POP node is not reachable, the route table is updated to relate the IPv6 subnet of the POP that is not reachable to the address of a POP node that is reachable. A Layer 2 network is used to direct the IPv6 management traffic according to the amended route table.
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公开(公告)号：US20230327344A1
公开(公告)日：2023-10-12
申请号：US18334083
申请日：2023-06-13
申请人： Cambium Networks Ltd
发明人： Robert UPTON , Varun Hegde , Michael Wright , Paul Clark , Matt Fuller , Nigel Jonathan Richard King
CPC分类号： H01Q19/193 , H01Q15/16 , H01Q19/17 , H01Q21/06 , H01Q19/192
摘要： A wireless transceiver for a wireless communication network has an offset Gregorian antenna arrangement comprising a primary reflector dish, an electrically conductive reflector member comprising a secondary reflector and a conductive support wall, a planar array of antenna elements arranged as a feed for transmitting radio frequency signals to the secondary reflector and/or for receiving radio frequency signals from the secondary reflector and a conductive support block configured to support the planar array of antenna elements. The conductive support wall is connected directly to the conductive support block, and the conductive support wall is configured to be substantially perpendicular to the planar array of antenna elements.
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公开(公告)号：US20220085518A1
公开(公告)日：2022-03-17
申请号：US17534045
申请日：2021-11-23
申请人： Cambium Networks Ltd
发明人： Jomon THOMAS , Deepu NAIR , Visalakshy TC , Nigel KING , Varun HEDGE
摘要： An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate, and a first, second, third and fourth elongate passive radiator, each comprising one or more substantially planar conductive parts which are electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. The third and fourth elongate passive radiators are disposed further from the linear array than are the first and second elongate passive radiators. Each of the third and fourth elongate passive radiators is narrower than and projects further from the ground plate than does each of the first and second elongate passive radiators.
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公开(公告)号：US20220085496A1
公开(公告)日：2022-03-17
申请号：US17534005
申请日：2021-11-23
申请人： Cambium Networks Ltd
发明人： Deepu Nair , Jomon Thomas , Varun Hedge , Visalakshy Tc , Nigel King
摘要： An antenna array assembly comprises a ground plate, a linear array of patch radiator elements disposed in a spaced parallel relationship with a first face of the ground plate and a first and second elongate passive radiator each comprising a plurality of conductive parts electrically isolated from the ground plate. The first and second elongate passive radiators are disposed symmetrically on either side of the linear array and parallel to a centre line of the linear array, on the same side of the ground plate as the linear array. At least some of the conductive parts of a respective elongate passive radiator are disposed in an arrangement having parallel ridges and grooves, in which, in a cross section in a plane parallel to the first face of the ground plate, the ridges extend towards the linear array and the grooves extend away from the linear array.
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