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：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：US11658634B1

公开(公告)日：2023-05-23

申请号：US17400333

申请日：2021-08-12

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Kun Ting Tsai ,  Cheol Su Kim ,  Kalyan Teja Posani ,  Omar Fawazhashim Zakaria

IPC: H04B17/318 ,  H04W4/80 ,  H03H7/40 ,  H04W52/02 ,  H04W76/27 ,  H04B1/18

CPC classification number: H03H7/40 ,  H04B1/18 ,  H04B17/318 ,  H04W52/0245 ,  H04W76/27

Abstract: Technologies directed to a wireless device with RF port impedance detection using concurrent radios are described. One wireless device includes an impedance detection circuit with a bi-directional RF coupler and switching circuitry. A processing device at least two radios, at least two RF ports, and an impedance detection circuit. The impedance detection circuit is configured to measure a first receive signal strength indicator (RSSI) value of a first reflected signal. The first reflected signal corresponding to a first signal sent by one of the at least two radios. The impedance detection circuit determines that the first RSSI value exceeds a threshold. The threshold represents an impedance mismatch condition at or beyond at least one of the two RF ports. The processing device sends a first indicative of the impedance mismatch condition to a second device.

公开(公告)号：US11546015B1

公开(公告)日：2023-01-03

申请号：US17322408

申请日：2021-05-17

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Cheol Su Kim ,  Ravi Ichapurapu ,  Kalyan Teja Posani ,  Omar Fawazhashim Zakaria ,  In Chui Hyun

IPC: H04B3/02 ,  H03F3/24 ,  H04B1/04 ,  H04B3/54 ,  H03M1/12 ,  H04B1/44

Abstract: Technologies directed to cable-loss compensation are described. An apparatus includes a triplexer, a front-end module (FEM) circuit, and a control circuit. The triplexer is coupled to a radio frequency (RF) cable. The triplexer receives a first RF signal and a DC power signal from a device via the RF cable and sends a detection signal being indicative of a transmit power level of the first RF signal to the device via the RF cable. The transmit power level includes an insertion loss of the RF cable. The FEM circuit is coupled to the triplexer and includes a power amplifier (PA). The control circuit is coupled to the triplexer and measures the transmit power level of the first RF signal and converts the first RF signal into the detection signal. The control circuit sends the detection signal back to the device via the RF cable and enables the PA.

公开(公告)号：US11375561B2

公开(公告)日：2022-06-28

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: H04W4/00 ,  H04W76/15 ,  H01Q1/22 ,  H04B7/0413 ,  H04W84/10 ,  H04W88/16

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：US20210176648A1

公开(公告)日：2021-06-10

申请号：US16707372

申请日：2019-12-09

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Tzung-I Lee ,  Omar Fawazhashim Zakaria ,  Subram Narasimhan ,  Cheol Su Kim

IPC: H04W16/20 ,  H04L12/44

Abstract: Technologies directed to a wireless network with a cascaded star topology with multiple devices at multiples nodes are described. In one wireless network, multiple devices are manufactured as a common device type and deployed at different nodes of the wireless network. The devices are configured to operate as a base station (BS) role, a gateway (GW) role, a relay (RL) role, or a customer station (STA) role. The nodes can be a base station node (BSN), a relay node (RLN), or a customer premises equipment (CPE) node. One node can be a first-tier hub of the cascaded star topology and another node can be a second-tier hub of the cascaded star topology.

公开(公告)号：US10862518B1

公开(公告)日：2020-12-08

申请号：US16706583

申请日：2019-12-06

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Kun Ting Tsai ,  Cheol Su Kim ,  Kwok Shing Lee ,  Haritha Tamvada

IPC: H04B1/10 ,  H04B1/18

Abstract: Technologies directed to a wireless device with a Radio Frequency (RF) Decibel-Scaled Wireless Interference Detector that provides accurate energy readings of a channel through decibel-scaled output voltage are described. One method of the wireless device includes receiving a first RF signal via an antenna and converting the first RF signal to a multiple samples using a sampling rate, each sample including a digital value of a decibel-scaled output voltage. The method converts each of the samples to an energy value using a voltage-to-energy lookup table and determines a congestion level of a channel using the energy values.