公开(公告)号：US11659588B1

公开(公告)日：2023-05-23

申请号：US17160104

申请日：2021-01-27

Applicant: Amazon Technologies, Inc.

Inventor： Kun Ting Tsai ,  Nathan Labadie ,  Cheol Su Kim ,  King Shaw ,  Sarang Wagholikar ,  Omar Fawazhashim Zakaria

IPC: H04W72/56 ,  H04W72/0453

CPC classification number: H04W72/56 ,  H04W72/0453

Abstract: Technologies directed to prioritized channel coordination in a multi-tier wireless network are described. One method includes identifying a first group of wireless devices located in a first geographical area using physical proximity information. The method includes, for a first wireless device having a highest priority among the wireless device in the first geographical area, determining a penalty value for each channel of a plurality of available channels and selecting a first channel having a lowest penalty value. The method includes, for a second wireless device having a second-highest priority, determining a penalty value for each of the remaining channels in the plurality of available channels and selecting a second channel, from the remaining channels, having a lowest penalty value. The method includes sending to the first wireless device information about the first channel and sending to the second wireless device information about the second channel.

公开(公告)号：US11218203B1

公开(公告)日：2022-01-04

申请号：US16776235

申请日：2020-01-29

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  Kun Ting Tsai ,  Haritha Tamvada ,  Kwok Shing Lee ,  Cheol Su Kim ,  Omar Fawazhashim Zakaria ,  In Chul Hyun ,  Ali Mirkamali ,  Dan Richard Brukwinski

IPC: H04B7/06 ,  H04B7/0413 ,  H01Q3/34 ,  H04W88/02 ,  H04W84/12

Abstract: Technologies directed to coordinated dynamic analog beamforming are described. One method includes receiving, by a digital controller of a first wireless device, a data packet, the data packet comprising a destination address of a second wireless device. The method further includes retrieving, from memory, beamformer configuration data associated with the destination address, the beamformer configuration data comprising a phase shifter angle value for a radiation pattern. The method sends, to a beamformer circuit, the phase shifter angle value, the beamformer circuit comprises a power splitter and a set of phase shifters (e.g., at least four). The method causes the set of phase shifters to steer the radiation pattern of electromagnetic energy, radiated by an antenna array of elements, at the phase shifter angle value and sends the data packet to the second wireless device via the antenna array.

公开(公告)号：US20210176805A1

公开(公告)日：2021-06-10

申请号：US16707354

申请日：2019-12-09

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Reshma Suresh ,  Ali Mirkamali ,  Cheol Su Kim ,  Omar Fawazhashim Zakaria ,  Kwok Shing Lee ,  Kalyan Teja Posani

IPC: H04W76/15 ,  H04B7/0413 ,  H01Q1/22

Abstract: Technologies directed to a wireless network device with a single hardware architecture that supports multiple devices roles through software configuration are described. One wireless network device includes a housing with an RF connector and a circuit board with a first radio coupled to an internal antenna and a second radio coupled to an external antenna via the RF connector. The second antenna is mounted on an exterior surface of the building and coupled to the RF connector via an RF cable. The wireless network device establishes a first wireless link between the first radio and a radio of a second device via the first antenna and a second wireless link between the second radio and a radio of a third device via the second antenna. The second device can be a second wireless network device that is programmed to operate as a gateway, the gateway being mounted outside of the building. The third device is located inside the building can be either a customer premises equipment (CPE) station or a wireless endpoint device. Each of the wireless network device, the second wireless network device, and the CPE station include identical hardware.

公开(公告)号：US10887026B1

公开(公告)日：2021-01-05

申请号：US16794070

申请日：2020-02-18

Applicant: Amazon Technologies, Inc.

Inventor： Kun Ting Tsai ,  Nathan Labadie ,  Cheol Su Kim ,  Haritha Tamvada ,  Omar Fawazhashim Zakaria

IPC: H04B17/10 ,  H04B3/52 ,  H04B7/0408 ,  H04B17/318 ,  H01Q13/24 ,  H04W88/08 ,  H04B3/54

Abstract: Technologies directed to antenna disconnection detection of distributed radio frequency (RF) ports in a wireless network are described. One method receives data from the wireless devices and generates an RSSI matrix including multiple elements, each storing a receive signal strength indicator (RSSI) value indicative of a signal strength of a wireless link between a transmitter-receiver pair. The method identifies a characteristic pattern in the RSSI matrix. The characteristic pattern includes i) two or more RSSI values in a same row being less than the threshold value and ii) two or more RSSI values in a same column being less than the threshold value. The method stores an indication that an antenna is disconnected from an RF port and sends a command to the second wireless device that causes the second wireless device to disable a radio that is coupled to the RF port.

公开(公告)号：US20200021038A1

公开(公告)日：2020-01-16

申请号：US16034938

申请日：2018-07-13

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  Omar Fawazhashim Zakaria ,  Kwok Shing Lee ,  Kalyan Teja Posani ,  Ali Mirkamali ,  Cheol Su Kim ,  In Chul Hyun

IPC: H01Q19/00 ,  H01Q9/04

Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.

公开(公告)号：US10440584B1

公开(公告)日：2019-10-08

申请号：US15714459

申请日：2017-09-25

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Cheol Su Kim

IPC: H04W16/14 ,  H03H7/12 ,  H04B7/06 ,  H04W88/10 ,  H04B7/0452 ,  H04L5/00

Abstract: Technology for radios that support single channel, multi-channel, SISO, MIMO, and beamforming communications at millimeter wave frequencies using WLAN transceivers or other IF transceivers. One radio includes a first transceiver configured to generate a first RF signal in a first frequency range; a second transceiver configured to generate a third RF signal in a mm-wave frequency range, the second transceiver is configured to couple to a multi-element antenna for beamforming operations; and conversion circuitry coupled to an output of the first transceiver and an input of the second transceiver. The conversion circuitry is configured to receive the first RF signal from the first transceiver and convert the first RF signal in the first frequency range to a second RF signal in the mm-wave frequency range; and receive the third RF signal from the second transceiver and convert the third RF signal to a fourth RF signal in the first frequency range.

公开(公告)号：US09391362B1

公开(公告)日：2016-07-12

申请号：US13764217

申请日：2013-02-11

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Cheol Su Kim ,  In Chul Hyun ,  Tzung-I Lee

IPC: H01Q1/36

CPC classification number: H01Q1/243 ,  H01Q5/328 ,  H01Q5/378 ,  H01Q5/385 ,  H01Q7/00

Abstract: Antenna structures and methods of operating the same of a configurable antenna of an electronic device are described. A configurable antenna includes a first antenna element coupled to a radio frequency (RF) feed, a controllable circuit coupled to the first antenna element and a second antenna element coupled to the controllable circuit. The controllable circuit is configured to electrically isolate the first antenna element and the second antenna element to configure the antenna structure to operate in a first antenna configuration having a first length and to electrically connect the first antenna element and the second antenna element to configure the antenna structure to operate in a second antenna configuration having a second length.

Abstract translation: 描述了操作与电子设备的可配置天线相同的天线结构和方法。 可配置天线包括耦合到射频（RF）馈电的第一天线元件，耦合到第一天线元件的可控电路和耦合到可控电路的第二天线元件。 可控电路被配置为将第一天线元件和第二天线元件电隔离，以将天线结构配置为以具有第一长度的第一天线配置工作，并且将第一天线元件和第二天线元件电连接以配置天线 结构以具有第二长度的第二天线配置操作。

公开(公告)号：US09331835B1

公开(公告)日：2016-05-03

申请号：US14220017

申请日：2014-03-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Tzung-i Lee ,  Varadarajan Gopalakrishnan ,  Cheol Su Kim ,  In Chul Hyun

IPC: H04L5/00 ,  H04L5/08 ,  H04W88/06

CPC classification number: H04W88/06 ,  H04B1/0057

Abstract: Radio frequency (RF) front-end circuitry and methods of operating the same are described. One apparatus includes multiple antennas and a RF front-end circuitry. The RF front-end circuitry includes: a selection switch coupled to a second antenna, a first RF transceiver coupled to a first antenna and selectively coupled to the second antenna via the selection switch; a second RF receiver coupled to the first antenna; and a third RF transceiver selectively coupled to the second antenna via the selection switch. The first antenna receives signals for the first RF transceiver and the second RF receiver. The selection switch selectively couples the second antenna to the first RF transceiver in a first mode of the RF front-end circuitry and selectively couples the second antenna to the third RF transceiver in a second mode of the RF front-end circuitry.

Abstract translation: 描述射频（RF）前端电路及其操作方法。 一种装置包括多个天线和RF前端电路。 RF前端电路包括：耦合到第二天线的选择开关，耦合到第一天线并经由选择开关选择性地耦合到第二天线的第一RF收发器; 耦合到所述第一天线的第二RF接收器; 以及经由所述选择开关选择性地耦合到所述第二天线的第三RF收发器。 第一天线接收用于第一RF收发器和第二RF接收器的信号。 所述选择开关在所述RF前端电路的第一模式中选择性地将所述第二天线耦合到所述第一RF收发器，并且在所述RF前端电路的第二模式中选择性地将所述第二天线耦合到所述第三RF收发器。