公开(公告)号：US09887708B2

公开(公告)日：2018-02-06

申请号：US15154314

申请日：2016-05-13

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： In Chul Hyun ,  Andrew David Price ,  Tzung-I Lee ,  Kwok Lee ,  Cheol Su Kim ,  Omar Fawazhashim Zakaria ,  Varadarajan Gopalakrishnan

IPC: H04W88/10 ,  H04B1/00 ,  H04M1/02 ,  H01Q5/30 ,  H01Q1/24 ,  H01Q1/50 ,  H01Q21/29 ,  H04L29/08 ,  H04W40/02 ,  H04W84/22 ,  H01Q19/10 ,  H01Q19/185 ,  H01Q21/20 ,  H01Q21/24 ,  H01Q21/28 ,  H04W84/12 ,  H04W84/18

CPC classification number: H04B1/0057 ,  H01Q1/243 ,  H01Q1/50 ,  H01Q5/30 ,  H01Q19/106 ,  H01Q19/185 ,  H01Q21/205 ,  H01Q21/24 ,  H01Q21/28 ,  H01Q21/29 ,  H04L67/06 ,  H04L67/104 ,  H04L67/1091 ,  H04L67/1097 ,  H04M1/026 ,  H04W40/02 ,  H04W84/12 ,  H04W84/18 ,  H04W84/22

Abstract: Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure are described. One mesh network device includes a micro controller, RF radios, and antenna switching circuitry. The antenna switching circuitry, in response to the control signals from a micro controller, selectively couples individual ones of a first set of antennas to individual channels of the set of RF radios to communicate content data with client consumption devices and selectively couples individual ones of a second set of antennas to other individual channels of the set of RF radios to communicate content data with other mesh network devices in a WMN.

公开(公告)号：US11706635B2

公开(公告)日：2023-07-18

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 ,  H04L12/28 ,  H04W88/08 ,  H04W88/16

CPC classification number: H04W16/20 ,  H04L12/44 ,  H04L12/2856 ,  H04W88/08 ,  H04W88/16

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：US11606791B1

公开(公告)日：2023-03-14

申请号：US17317715

申请日：2021-05-11

Applicant: Amazon Technologies, Inc.

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

IPC: H04L12/28 ,  H04W72/0453 ,  H04J1/16 ,  H04W84/12

Abstract: Technologies directed to multi-tier coordinated dynamic frequency selection (DFS) service in a multi-tier wireless network are described. One method includes receiving, by a first wireless device, first data associated with a first set of DFS channels. The first wireless device performs a CAC on each DFS channel of the first set of DFS channels in a specified order. The first wireless device identifies a second set of DFS channels in which no radar event is found during the respective CAC and generates second data associated with the second set of DFS channels. The first wireless device receives a first request for the second data from a second wireless device. The first wireless device determines a receive signal strength indicator (RSSI) value associated with the first request and sends a first response, including the second data and the RSSI value, to the second wireless device

公开(公告)号：US11121693B1

公开(公告)日：2021-09-14

申请号：US16744974

申请日：2020-01-16

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 ,  H04W76/27 ,  H04W52/02 ,  H04B1/18

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 controls the switching circuitry to i) couple the bi-directional RF coupler between a first radio and a first RF port and a second radio and a second RF port. The processing device causes a first radio to send a first signal and a second radio to measure a first receive signal strength indicator (RSSI) value of a first reflected signal. The processing device determines that the first RSSI value exceeds a threshold, the threshold representing an impedance mismatch condition at or beyond the first RF port. The processing device sends a message indicative of the impedance mismatch condition to a second device.

公开(公告)号：US11075465B2

公开(公告)日：2021-07-27

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: H01Q9/04 ,  H01Q19/00

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：US11043985B1

公开(公告)日：2021-06-22

申请号：US16892119

申请日：2020-06-03

Applicant: Amazon Technologies, Inc.

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

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

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：US10447378B1

公开(公告)日：2019-10-15

申请号：US15260024

申请日：2016-09-08

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Jin Dong Kim ,  Sang Eun Lee ,  In Chul Hyun ,  Cheol Su Kim ,  Subram Narasimhan ,  Varadarajan Gopalakrishnan ,  Omar Fawazhashim Zakaria

IPC: H04B7/155 ,  H04W76/14 ,  H04W76/15 ,  H04W84/18 ,  H04W4/021

Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which a home access node (HAN) device that includes a first set of radios, each of the first set of radios being coupled to a beam-steering antenna and each of the first set of radios establishing a first point-to-point (PtP) wireless connection over which the HAN relay device communicates with a second HAN relay device in a first sub-mesh network of HAN relay devices. The HAN device also includes a second set of radios, each of the second set of radios being coupled to a beam-steering antenna and each of the second set of radios establishing a second PtP wireless connection over which the HAN relay device communicates with at least one of a plurality of HAN devices in a second sub-mesh network in the WMN.

公开(公告)号：US10263667B2

公开(公告)日：2019-04-16

申请号：US15228595

申请日：2016-08-04

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Omar Fawazhashim Zakaria ,  Cheol Su Kim

IPC: H04B3/54 ,  H04W40/12 ,  H04W84/18

Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes a first wireless radio and a power line communications (PLC) radio coupled to a processing device. The processing device communicates, using the first wireless radio, first data with a second mesh network device over a wireless link between the first wireless radio and a first wireless radio of the second mesh network device. The processing device also communicates, via the power distribution network via the PLC radio, second data with the second mesh network device over a PLC link between the first PLC radio and a first PLC radio of the second mesh network device. The first data and the second data may be redundant data. The first data may be content data and second data may be control data. The first and second data may be subsets of the same digital content.

公开(公告)号：US10193236B1

公开(公告)日：2019-01-29

申请号：US15189781

申请日：2016-06-22

Applicant: AMAZON TECHNOLOGIES, INC.

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

IPC: H01Q1/24 ,  H01Q21/00 ,  H01Q15/14 ,  H01Q9/06 ,  H01Q21/29 ,  H01Q21/26 ,  H04W84/18

Abstract: Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices without Internet connectivity are described. One mesh network device includes a housing with a first sector defined by a first recessed region between a first reflective wall, a second reflective wall, and a third reflective wall, and a second sector defined by a second recessed region between a fourth reflective wall, a fifth reflective wall, and a sixth reflective wall. A first antenna, such as a phased array dipole antenna, is disposed inside the first recessed region. A first radio, which is coupled to the first antenna, causes the first antenna to radiate electromagnetic energy in a first frequency range and the first, the second, and the third reflective walls collectively reflect the electromagnetic energy, radiated by the first antenna, in a first direction away from the housing.

公开(公告)号：US09900880B1

公开(公告)日：2018-02-20

申请号：US15154657

申请日：2016-05-13

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Omar Fawazhashim Zakaria ,  Cheol Su Kim ,  In Chul Hyun ,  Varadarajan Gopalakrishnan

IPC: H04W4/00 ,  H04W72/04 ,  H04L29/08 ,  H04W84/18

CPC classification number: H04L67/104 ,  H04W72/1215 ,  H04W76/14 ,  H04W76/15 ,  H04W84/18 ,  H04W88/06

Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes three radios, two of which operate with a frequency separation less than 100 MHz. A first network hardware device communicates with a second network hardware device when not serving data to a client device. When serving data to a client device, the first network hardware device communicates wireless wide area network (WWAN) data to a WWAN network through a third network hardware device in the WMN that has its own WWAN connection to create spatial separation for simultaneous communication.