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1. 发明授权

US10854942B2 Radio frequency connection arrangement 有权
公开(公告)号：US10854942B2
公开(公告)日：2020-12-01
申请号：US16272834
申请日：2019-02-11
申请人： Cambium Networks Limited
发明人： Paul Clark , Peter Strong , Carl Morrell , Adam Wilkins , Nigel Jonathan Richard King
IPC分类号： H01P5/02 , H01P3/08 , H05K1/02
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.

2. 发明申请

US20180331745A1 METHOD AND APPARATUS FOR CONTROLLING EQUIVALENT ISOTROPIC RADIATED POWER 审中-公开
公开(公告)号：US20180331745A1
公开(公告)日：2018-11-15
申请号：US16041321
申请日：2018-07-20
申请人： Cambium Networks Limited
发明人： Peter Strong
IPC分类号： H04B7/06 , H04L27/26 , H04B17/11 , H04B7/0452
CPC分类号： H04B7/0682 , H04B7/0452 , H04B7/0617 , H04B17/102 , H04B17/11 , H04L27/26 , H04L27/2601
摘要： An access point of a wireless communication network forms beams by applying a weightset for a beamforming weights matrix to signal streams. The Equivalent Isotropic Radiated Power (EIRP) that is emitted from an array of antenna elements at the access point is controlled by calibrating the transmission phase and gain of a respective transmit chain for each antenna element, providing a polar radiation model for an antenna element of the array, and determining a weightset for the weighting matrix subject to a constraint that a maximum total EIRP for the beams in combination in any azimuth direction is maintained within a predetermined EIRP limit, based at least on a spatial separation of the antenna elements, the polar radiation model and the calibrated transmission phase and gain of each respective transmit chain.

3. 发明申请

US20190334589A1 METHOD AND APPARATUS FOR CHANNEL SOUNDING FOR A MU-MIMO WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：US20190334589A1
公开(公告)日：2019-10-31
申请号：US16505282
申请日：2019-07-08
申请人： Cambium Networks Limited
发明人： Peter Strong
IPC分类号： H04B7/0452 , H04B7/06 , H04L5/00 , H04B7/10
摘要： In a multi user multiple input multiple output MU-MIMO wireless communication network comprising an access point and subscriber modules, a method of channel sounding comprises forming a respective MU-MIMO beam from the access point to each subscriber module of a first sounding group of subscriber modules by applying a beamforming weightset to a weighting matrix, the beamforming weightset determined based on previously determined channel estimates. Each MU-MIMO beam is used to transmit a respective sounding symbol, each respective sounding symbol being different from each other sounding symbol of the first sounding group. A first sounding symbol is received at a first subscriber module of the first sounding group, and it is determined whether to send a response message to the access point on the basis of a determination of a received level of interference to the first sounding symbol.

4. 发明申请

US20160240908A1 RADIO FREQUENCY CONNECTION ARRANGEMENT 有权
标题翻译：无线电频率连接安排
公开(公告)号：US20160240908A1
公开(公告)日：2016-08-18
申请号：US14839296
申请日：2015-08-28
申请人： Cambium Networks Limited
发明人： Peter Strong , Adam Wilkins , Carl Morrell , Paul Clark , Nigel Jonathan Richard King
IPC分类号： H01P5/02
CPC分类号： H01P5/028 , H01P3/081 , H05K1/0225 , H05K1/0239 , H05K1/025
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 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.
摘要翻译：射频传输装置包括具有孔的接地板，该孔包括具有细长横截面和基本上平行的侧面的槽，以及第一和第二传输线。接地板的厚度大于槽的宽度。第一传输线包括在接地板的第一侧上的第一细长导体，并且端部具有第一端接短截线。第二传输线包括位于接地板的相对侧上的第二细长导体，并且端部具有第二端接短截线。第一传输线布置成在与第一端接短截线相邻的点处穿过槽，并且第二传输线被布置成在与第二端接短截线相邻的点处与槽交叉。

5. 发明申请

US20190356365A1 METHOD AND APPARATUS FOR BEAM PATTERN STABILISATION 审中-公开
公开(公告)号：US20190356365A1
公开(公告)日：2019-11-21
申请号：US16528995
申请日：2019-08-01
申请人： Cambium Networks Limited
发明人： Peter Strong
IPC分类号： H04B7/0456 , H04B7/0452 , H04L25/02 , H04L5/14 , G01C19/00 , H04B7/06 , G01P15/18 , G01C21/18
摘要： Methods and apparatuses for beam pattern stabilisation are provided. A method may include processing an output of a gyroscopic sensor to generate a plurality of first phase corrections for a first time interval and a plurality of second phase corrections for a second time interval. The method may further include measuring respective signal propagation characteristics between each antenna element of the array and each of a first and second subscriber module for the first time interval. The method may further include forming, based on the measured respective signal propagation characteristics, the plurality of first phase corrections, and the plurality of second phase corrections, a MU-MIMO beam pattern for the second time interval having a main lobe towards the first subscriber module and a null towards the second subscriber module, whereby to correct for a change in orientation of the array between the first time interval and the second time interval.

6. 发明授权

US10389416B2 Method and apparatus for beam pattern stabilization 有权
公开(公告)号：US10389416B2
公开(公告)日：2019-08-20
申请号：US15175204
申请日：2016-06-07
申请人： Cambium Networks Limited
发明人： Peter Strong
IPC分类号： H04B7/0456 , H04L5/14 , H04B7/06 , G01C19/00 , G01C21/18 , G01P5/18 , H04L25/02 , H04B7/0452 , G01P15/18 , H04B7/10
摘要： Methods and apparatuses for beam pattern stabilization are provided. A method may include processing an output of a gyroscopic sensor to generate a plurality of first phase corrections for a first time interval and a plurality of second phase corrections for a second time interval. The method may further include measuring respective signal propagation characteristics between each antenna element of the array and each of a first and second subscriber module for the first time interval. The method may further include forming, based on the measured respective signal propagation characteristics, the plurality of first phase corrections, and the plurality of second phase corrections, a MU-MIMO beam pattern for the second time interval having a main lobe towards the first subscriber module and a null towards the second subscriber module, whereby to correct for a change in orientation of the array between the first time interval and the second time interval.

7. 发明授权

US09837697B2 Radio frequency connection arrangement 有权
公开(公告)号：US09837697B2
公开(公告)日：2017-12-05
申请号：US14839296
申请日：2015-08-28
申请人： Cambium Networks Limited
发明人： Peter Strong , Adam Wilkins , Carl Morrell , Paul Clark , Nigel Jonathan Richard King
IPC分类号： H01P5/02 , H01P3/08 , H05K1/02
CPC分类号： H01P5/028 , H01P3/081 , H05K1/0225 , H05K1/0239 , H05K1/025
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 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.

8. 发明申请

US20150215013A1 METHOD AND APPARATUS FOR A MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (MU-MIMO) NETWORK WITH SINGLE TRANSCEIVER SUBSCRIBER MODULES 审中-公开
标题翻译：用于多用户多输入多输出（MU-MIMO）网络的单向收发器订户模块的方法和装置
公开(公告)号：US20150215013A1
公开(公告)日：2015-07-30
申请号：US14166489
申请日：2014-01-28
申请人： Cambium Networks Limited
发明人： Peter Strong , John F. Ley
IPC分类号： H04B7/04 , H04B7/10
CPC分类号： H04B7/0452 , H04B7/0602 , H04B7/0805 , H04B7/0834 , H04B7/10 , H04W88/02
摘要： In a multi-user multiple input multiple output (MU-MIMO) wireless network comprising an access point and several subscriber modules, a subscriber module configured with a single transceiver and two antennas elements operates a polarization switch to cause one of the two antenna elements to be connected with the single transceiver. The polarization switch may be operated in response to receiving a command from the access point. A scheduler in the access point is configured to send the command to cause the subscriber module to operate the polarization switch.
摘要翻译：在包括接入点和多个用户模块的多用户多输入多输出（MU-MIMO）无线网络中，配置有单个收发器和两个天线元件的用户模块操作偏振开关，以使两个天线元件之一与单个收发器连接。响应于从接入点接收到命令，偏振开关可以被操作。接入点中的调度器被配置为发送命令以使用户模块操作偏振切换器。

9. 发明授权

US10707942B2 Method and apparatus for controlling equivalent isotropic radiated power 有权
公开(公告)号：US10707942B2
公开(公告)日：2020-07-07
申请号：US16510319
申请日：2019-07-12
申请人： Cambium Networks Limited
发明人： Peter Strong
IPC分类号： H04B7/06 , H04B17/11 , H04B7/0452 , H04L27/26 , H04B17/10
摘要： An access point of a wireless communication network forms beams by applying a weightset for a beamforming weights matrix to signal streams. The Equivalent Isotropic Radiated Power (EIRP) that is emitted from an array of antenna elements at the access point is controlled by calibrating the transmission phase and gain of a respective transmit chain for each antenna element, providing a polar radiation model for an antenna element of the array, and determining a weightset for the weighting matrix subject to a constraint that a maximum total EIRP for the beams in combination in any azimuth direction is maintained within a predetermined EIRP limit, based at least on a spatial separation of the antenna elements, the polar radiation model and the calibrated transmission phase and gain of each respective transmit chain.

10. 发明申请

US20190190110A1 RADIO FREQUENCY CONNECTION ARRANGEMENT 审中-公开
公开(公告)号：US20190190110A1
公开(公告)日：2019-06-20
申请号：US16272834
申请日：2019-02-11
申请人： Cambium Networks Limited
发明人： Paul Clark , Peter Strong , Carl Morrell , Adam Wilkins , Nigel Jonathan Richard King
IPC分类号： H01P3/08 , H05K1/02
CPC分类号： H01P3/081 , H01P5/028 , H05K1/0237 , H05K2201/09209 , H05K2201/10242
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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