DISTRIBUTED ACCESS POINTS FOR WIRELESS NETWORKS

    公开(公告)号:US20230032799A1

    公开(公告)日:2023-02-02

    申请号:US17938702

    申请日:2022-10-07

    Abstract: A host controller for a distributed wireless local area network (WLAN) includes: a communications interface connected to each of a set of wireless access points (APs); a memory storing (i) identifiers of each of the wireless access points, and (ii) a master identifier of the host controller; and a processor configured to: receive a notification, from a first one of the APs, that the first AP has completed an association with a client device; in response to receiving the notification: deploy association data, including an identifier of the client device, to each of the APs; initiate a handshake mechanism with the client device, via a selected one of the APs, to generate an encryption key; and provide the encryption key to each or the APs to enable data exchange between the client device and each of the APs.

    Scheduled medium access for directional multi-gigabit wireless communications systems

    公开(公告)号:US11224063B2

    公开(公告)日:2022-01-11

    申请号:US16705958

    申请日:2019-12-06

    Abstract: A method in a wireless access point (AP) for controlling medium access includes: transmitting a beacon frame defining (i) a beacon header interval (BHI), and (ii) a data transmission interval (DTI) divided into a predetermined number of scheduled periods, each scheduled period containing a set of uplink allocation request sub-periods; sending, to a client device, an uplink allocation request assignment indicating an assigned uplink allocation request sub-period from the set, that corresponds to the client device; during a current one of the scheduled periods, receiving an uplink allocation request from the client device during the assigned uplink allocation request sub-period; determining an uplink allocation sub-period for the client device based on the uplink allocation request; and during a next one of the scheduled periods, sending an indication of the uplink allocation sub-period to the client device.

    Wireless multimedia communications system and method

    公开(公告)号:US10979479B2

    公开(公告)日:2021-04-13

    申请号:US15659043

    申请日:2017-07-25

    Abstract: A system is provided comprising: a host computing device including: a wireless transceiver; and a processor configured to generate multimedia data for transmission via the wireless transceiver; and a movably-mounted client device including: a first set of wireless transceivers; a controller connected to the output assembly and each of the wireless transceivers; the controller configured to: assess respective performance attributes for each of the first set of transceivers; and based on the performance attributes, select a transceiver from the first set to receive the multimedia data from the host computing device; and an output assembly for presenting the multimedia data.

    Single-carrier wideband beamforming method and system

    公开(公告)号:US10886975B2

    公开(公告)日:2021-01-05

    申请号:US16382585

    申请日:2019-04-12

    Abstract: A method in a transmitter station for establishing a wireless link with a receiver station includes: sending beamforming training data to the receiver station; responsive to sending the beamforming training data, receiving from the receiver station: beamforming feedback data; and a beamforming feedback mode indicator selected from (i) a multi-subcarrier feedback mode, and (ii) a single carrier feedback mode; when the beamforming feedback mode indicator corresponds to the single carrier feedback mode, obtaining beamforming parameters based on the beamforming feedback data.

    Broadband phased array antenna system with hybrid radiating elements

    公开(公告)号:US10854994B2

    公开(公告)日:2020-12-01

    申请号:US15711486

    申请日:2017-09-21

    Abstract: A broadband phased array antenna system is set forth comprising a support member; an antenna array mounted to the support member, the antenna array having a plurality of uniformly excited hybrid radiating elements arranged in a symmetric array on a substrate; a baseband controller mounted to the support member; a radio controller mounted to the support member for modulating and demodulating signals between the baseband controller and antenna array; and a communications interface for removably connecting and disconnecting the antenna system. In one aspect, the antenna array comprises a substrate; a plurality of uniformly excited hybrid radiating elements arranged in a symmetric array on the substrate; a hybrid feeding network for transmitting RF-signals to the hybrid radiating elements; and artificial materials surrounding opposite sides of the symmetric array for suppressing edge scattered fields and increasing gain of the antenna system.

    Enclosure for millimeter-wave antenna system

    公开(公告)号:US10461413B2

    公开(公告)日:2019-10-29

    申请号:US15708208

    申请日:2017-09-19

    Abstract: A phased array antenna system is provided, comprising a support member having a mounting surface; a plurality of electronic components supported on the mounting surface; an antenna supported on the support member adjacent to a perimeter of the mounting surface, for transmitting and receiving ultra-high frequency radio waves of wavelength λ; and an enclosure. The enclosure includes a top portion and a bottom portion for enclosing the support member and a radome for enclosing the antenna. The center of curvature of the radome is positioned less than 1λ from an end of the antenna. The thickness of the radome is approximately λ/5 and the radius of the radome is less than 1λ.

    Wireless system architecture with dependent superstrate for millimeter-wave phased-array antennas

    公开(公告)号:US10396470B1

    公开(公告)日:2019-08-27

    申请号:US15923680

    申请日:2018-03-16

    Inventor: Atabak Rashidian

    Abstract: A wireless communications assembly includes: a primary board including: (i) an upper surface bearing a radio controller, and defining a set of control contacts for connection to respective ports of the radio controller; (ii) a lower surface opposite the upper surface, the lower surface defining a plurality of antenna contacts; (iii) a plurality of conduits extending through the primary board from the antenna contacts to the control contacts; and (iv) an antenna ground plane; a superstrate board including: (i) an inner surface facing the lower surface of the primary board; (ii) an outer surface opposite the inner surface; (iii) a phased array of antenna elements disposed on the inner surface; and a surface-mount package between the lower surface and the inner surface for connecting a subset of the antenna contacts directly to the antenna elements and to provide a substrate between the antenna elements and the antenna ground layer.

    Method and system for interference mitigation in wireless communications assemblies

    公开(公告)号:US10171183B2

    公开(公告)日:2019-01-01

    申请号:US15705709

    申请日:2017-09-15

    Abstract: A method in a wireless communications assembly having an antenna, a transceiver and a baseband processor, includes: at the transceiver: receiving, from the antenna, a modulated carrier signal having a carrier frequency and containing payload data; demodulating the carrier signal to extract a baseband signal having a baseband frequency and containing the payload data; generating from the baseband signal, at a converter, a digital baseband signal containing the payload data; at an encoder: receiving the digital baseband signal from the converter; generating an encoded digital baseband signal encoding the payload data for transmission at an operating frequency; the encoded digital baseband signal having at least a threshold proportion of signal level transitions that, when transmitted at the operating frequency, have transition frequencies outside a predefined restricted frequency band; and transmitting the encoded digital baseband signal to the baseband processor via an interface at the operating frequency.

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