公开(公告)号：US20200296710A1

公开(公告)日：2020-09-17

申请号：US16814553

申请日：2020-03-10

Applicant: Airspan Networks Inc.

Inventor： Andrew LOGOTHETIS ,  Marlon Peter PERSAUD

IPC: H04W72/04 ,  H04W4/029

Abstract: A wireless communication system for a moving vehicle, and a method of operation of a wireless communication system for a moving vehicle, are described. The wireless communication system comprises an antenna system configured to receive a received signal from a further antenna system and to transmit a transmitted signal to the further antenna system, communication control circuitry to control operation of the antenna system, and analysis circuitry. The analysis circuitry is configured to obtain at least one item of information from the received signal, and perform a Doppler adjustment process to determine, based on the at least one item of information, an adjusted transmitted frequency (ft) to be used for transmission of the transmitted signal from the antenna system, such that an observed frequency of the transmitted signal at the further antenna system is a predetermined uplink frequency (fUL).

公开(公告)号：US10771992B2

公开(公告)日：2020-09-08

申请号：US16122543

申请日：2018-09-05

Applicant: AIRSPAN NETWORKS INC.

Inventor： Kevin Andrew Terry ,  Anthony Edward Putman ,  Alan Carter

IPC: H04W24/08 ,  H04W48/20 ,  H04W88/04 ,  H04W84/04 ,  H04W84/12

Abstract: There is provided a node that includes radio circuitry that wirelessly connects to other devices in a wireless network using either a first radio configuration or a second radio configuration. Scan circuitry determines a first measurement related to using the radio circuitry to connect to an analysed device in the other devices in the first radio configuration and a second measurement related to using the radio circuitry to connect to the analysed device in the second radio configuration. Metric calculation circuitry calculates, for each device in the other devices, a metric, wherein each metric is calculated by applying a first weighting greater than zero to the first measurement obtained for that device and a second weighting greater than zero to the second measurement obtained for that device. Selection circuitry adapted to select one of the other devices in dependence on the metric calculated for each of the other devices.

公开(公告)号：US20190393601A1

公开(公告)日：2019-12-26

申请号：US16443138

申请日：2019-06-17

Applicant: AIRSPAN NETWORKS INC.

Inventor： Andrew LOGOTHETIS ,  Marlon Peter PERSAUD

IPC: H01Q3/26 ,  H01Q1/00

Abstract: A technique is provided for controlling a beam pattern employed by an antenna apparatus. The antenna apparatus comprises an antenna array, and beamforming circuitry to employ a beam pattern in order to generate a beam using the antenna array to facilitate wireless communication with at least one further antenna apparatus. Beam pattern adjustment circuitry is then arranged to receive a control signal indicative of a motion being imparted to the antenna apparatus, and to adjust the beam pattern to be used by the beamforming circuitry in dependence on the control signal, so as to alter a width of the beam in order to mitigate variation in link quality of the wireless communication due to the motion. This hence allows the width of the beam deployed by the antenna apparatus to be adjusted taking into account motion being imparted to the antenna apparatus, so that a balance can be achieved between employing a narrow beam to seek to improve range and resilience to interference, and a wider beam to reduce the variation in link quality that might otherwise arise due to the motion.

公开(公告)号：US10476724B2

公开(公告)日：2019-11-12

申请号：US16026257

申请日：2018-07-03

Applicant: AIRSPAN NETWORKS INC.

Inventor： Krzysztof Dudzinski ,  Martin Lysejko ,  Alan Carter

IPC: H04L27/28 ,  H04L27/26 ,  H04B7/08 ,  H04W36/30 ,  H04B17/318 ,  H04B17/336 ,  H04B17/345

Abstract: There is provided a node for operating in a wireless network, including: coarse-granularity scanning circuitry that performs a coarse-granularity scanning process to detect one or more donor nodes of the wireless network according to a first metric. Connection circuitry forms a connection to a selected donor node in the one or more donor nodes. The connection is broken as a consequence of the coarse-granularity scanning process being performed. Fine granularity scanning circuitry performs a fine granularity scanning process to determine a configuration in which a quality of the connection is improved according to a second metric. The connection is maintained during the fine granularity scanning process.

公开(公告)号：US20190334243A1

公开(公告)日：2019-10-31

申请号：US16374280

申请日：2019-04-03

Applicant: AIRSPAN NETWORKS INC.

Inventor： Hassanein Daniel RABAH

IPC: H01Q9/04 ,  H01Q1/48

Abstract: A technique is provided for tuning the resonance frequency of an electric-based antenna formed by a radiator element coupled to an antenna ground plane. The disclosed method comprises providing a plurality of parasitic capacitive elements extending in an electric field direction of the electric-based antenna so as to lower the resonance frequency of the electric-based antenna below a desired resonance frequency. The electric-based antenna is then integrated within a deployment environment of interest, and thereafter an indication of an actual frequency response of the electric-based antenna within the deployment environment is obtained. One or more of the parasitic capacitive elements may then be removed so as to adjust the actual resonance frequency towards the desired resonance frequency. By such an approach, a significant degree of adjustment in the resonance frequency of the antenna can be made after the antenna has been integrated within the deployment environment.

公开(公告)号：US10448264B2

公开(公告)日：2019-10-15

申请号：US15186955

申请日：2016-06-20

Applicant: Airspan Networks Inc.

Inventor： David Charles Elson ,  Martin Lysejko

IPC: H01Q1/08 ,  H04W24/02 ,  G01S19/53 ,  G01S3/14 ,  G01S5/02 ,  H01Q1/02 ,  H01Q3/04 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/06 ,  H04B7/08 ,  H04W28/02 ,  H04W88/04 ,  H05K7/20 ,  H04L12/24 ,  H04L29/08 ,  H04W16/28 ,  H04W40/22 ,  H04W72/08 ,  H04W24/10 ,  H01Q1/24 ,  H01Q1/50 ,  H01Q3/10 ,  H04W72/04 ,  G01S3/04 ,  G01S19/24 ,  H01Q1/36 ,  H01Q1/42 ,  H01Q3/12 ,  H01Q21/00 ,  H01Q1/12 ,  H01Q3/02 ,  H01Q3/36 ,  H01Q21/24 ,  H04B7/0456 ,  F16M11/06 ,  H04L12/26 ,  H04W24/08 ,  H04W28/24 ,  H04W48/06 ,  H04W4/50 ,  H04W84/04 ,  H04W84/02 ,  H04W88/08

Abstract: A rotatable antenna apparatus has a fixed unit for attachment of the apparatus to an external structure, and a rotatable unit mounted on the fixed unit for rotation relative to the fixed unit. The rotatable unit comprises both an antenna assembly and processing circuitry coupled to the antenna assembly for performing signal processing operations. The apparatus further includes a thermally conductive shaft connected to the rotatable unit and located for rotation within the fixed unit, and a thermally conductive coupling structure to conduct heat from one or more heat generating components of the processing circuitry into the thermally conductive shaft. A heat sink within the fixed unit is thermally coupled to the thermally conductive shaft to draw heat away from the thermally conductive shaft. This provides an efficient mechanism for removing heat from the rotatable unit, whilst still allowing the rotatable unit to be sealed against external environmental conditions.

公开(公告)号：US20190312349A1

公开(公告)日：2019-10-10

申请号：US16373953

申请日：2019-04-03

Applicant: AIRSPAN NETWORKS INC.

Inventor： Andrew LOGOTHETIS ,  David Charles BROKENSHIRE

IPC: H01Q3/06

Abstract: The present technique provides an antenna apparatus and a method of operating an antenna apparatus comprising a first antenna array and a second antenna array. Antenna positioning circuitry is used to move the first antenna array relative to the second antenna array about a common axis of rotation to facilitate positioning of the first and second antenna arrays in a chosen deployment configuration between a first limit and a second limit. Antenna array control circuitry is used to coordinate operation of the first antenna array and the second antenna array dependent on the chosen deployment configuration.

公开(公告)号：US10306485B2

公开(公告)日：2019-05-28

申请号：US15187188

申请日：2016-06-20

Applicant: Airspan Networks Inc.

Inventor： Martin Lysejko ,  Andrew Logothetis ,  Krzysztof Dudzinski ,  Stuart Parrott

IPC: H01Q3/12 ,  H04W24/02 ,  G01S19/53 ,  G01S3/14 ,  G01S5/02 ,  H01Q1/02 ,  H01Q3/04 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/06 ,  H04B7/08 ,  H04W28/02 ,  H04W88/04 ,  H05K7/20 ,  H04L12/24 ,  H04L29/08 ,  H04W16/28 ,  H04W40/22 ,  H04W72/08 ,  H04W24/10 ,  H01Q1/24 ,  H01Q1/50 ,  H01Q3/10 ,  H04W72/04 ,  G01S3/04 ,  G01S19/24 ,  H01Q1/36 ,  H01Q1/42 ,  H01Q21/00 ,  H01Q1/12 ,  H01Q3/02 ,  H01Q3/36 ,  H01Q21/24 ,  H04B7/0456 ,  F16M11/06 ,  H04L12/26 ,  H04W24/08 ,  H04W28/24 ,  H04W48/06 ,  H04W4/50 ,  H04W84/04 ,  H04W84/02 ,  H04W88/08

Abstract: An antenna apparatus for use in a wireless network and method of operating such an antenna apparatus are provided. A wireless network controller provides a configuration of such an antenna apparatus, a method of operating such a wireless network controller, and a resulting wireless network. The antenna apparatus comprises a directional antenna and a uniform circular antenna array. The directional antenna can be rotatably positioned about an axis with respect to a fixed mounting portion of the apparatus in dependence on wireless signals received by the antenna array. The antenna array allows the antenna apparatus to receive wireless signals isotropically and thus to accurately monitor the wireless signal environment in which it finds itself. The antenna apparatus can thus monitor and characterize incoming signals, both from external interference sources and from other network nodes, and the directional antenna can then be positioned in rotation to improve the network throughput.

公开(公告)号：US10257733B2

公开(公告)日：2019-04-09

申请号：US15187602

申请日：2016-06-20

Applicant: Airspan Networks Inc.

Inventor： Martin Lysejko ,  Andrew Logothetis

IPC: H04W24/10 ,  H04L12/26 ,  H04B7/02 ,  H04W24/02 ,  H04L12/24 ,  H04W24/04

Abstract: A method and apparatus configures a wireless network comprising a plurality of nodes to mitigate effects of an external interference source. A subset of the nodes simultaneously participate in an external interference sampling process in which each node of the subset samples signals received by an antenna array of that node. A measurement report, comprising a signal source angle and a received signal strength, is received from a node. A location of the external interference source is estimated using the measurement report. The external interference source is then characterized using the estimated location of the external interference source and the received signal strength to calculate for the external interference source at least one of: a source power; a beam width; an antenna bearing; and a front-to-back transmission ratio. The nodes are configured to mitigate effects of the external interference source in dependence on a result of the characterizing step.

公开(公告)号：US10098018B2

公开(公告)日：2018-10-09

申请号：US15187680

申请日：2016-06-20

Applicant: Airspan Networks Inc.

Inventor： Martin Lysejko ,  Stuart Parrott

IPC: H01Q21/00 ,  H04W24/02 ,  H04W4/50 ,  F16M11/06 ,  G01S3/04 ,  G01S3/14 ,  G01S5/02 ,  G01S19/24 ,  G01S19/53 ,  H01Q1/02 ,  H01Q1/12 ,  H01Q1/24 ,  H01Q1/36 ,  H01Q1/42 ,  H01Q1/50 ,  H01Q3/02 ,  H01Q3/04 ,  H01Q3/10 ,  H01Q3/12 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q3/36 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/24 ,  H01Q21/28 ,  H01Q25/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L12/24 ,  H04L12/26 ,  H04L29/08 ,  H04W16/28 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/24 ,  H04W40/22 ,  H04W48/06 ,  H04W72/04 ,  H04W72/08 ,  H04W88/04 ,  H05K7/20 ,  H04B7/08 ,  H04W84/02 ,  H04W84/04 ,  H04W88/08

Abstract: Antenna apparatus and a method of operating the antenna apparatus are provided. The antenna apparatus comprises a directional antenna comprising antenna array components, RF chains connected to the antenna array components, and a transceiver connected to the RF chains. Each RF chain comprises in sequence: a switching stage having switching circuitry selectively to connect an antenna array component, a phase shifting stage having phase shifting circuitry, and a summation stage having summation circuitry, wherein at least two of the RF chains share phase shifting circuitry and at least two of the RF chains share summation circuitry. The at least partial sharing of the RF chains, an in particular of the phase shifting circuitry provides a compact and cheap antenna apparatus, which is nonetheless capable of degree of configurability in direction and beam pattern to enable it to operate in a busy and changing environment.