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公开(公告)号：US10609620B1
公开(公告)日：2020-03-31
申请号：US15864943
申请日：2018-01-08
Applicant: Amazon Technologies, Inc.
Inventor： Chiu Ngok Eric Wong , Jungtao Liu
IPC: H04W40/08 , H04L12/733 , H04W84/18
Abstract: Technology for multi-hop power management is described. In one embodiment, processing logic obtains a noise floor value, an interference threshold parameter, a data rate threshold parameter, and a set of channel interference metrics from each of a first mesh network device, a second mesh network device, and a third mesh network device, respectively. The processing logic identifies a network path that traverses the three mesh network devices. The processing logic calculates a first transmit power level for the first mesh network device, a second transmit power level for the second mesh network device, and a third transmit power level for the third mesh network device. Data transmissions by each of the mesh network device at the respective transmit power levels ensure a minimum data transmission rate over each hop of the network path.
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公开(公告)号：US10405366B1
公开(公告)日：2019-09-03
申请号：US15278485
申请日：2016-09-28
Applicant: Amazon Technologies, Inc.
Inventor： Jungtao Liu , Varada Gopalakrishnan
Abstract: Methods and systems for providing data to a mobile device from multiple access points are described. The system may include multiple access points (APs) in communication with each other to form a network of APs. The network of APs may include a logical AP (LAP) that is discoverable as an individual physical access point by a mobile device, even though the LAP may be a logical construction involving multiple physical APs that communicate with the mobile device. The system may synchronize operations within the network of APs for effective and efficient data transmissions. The mobile device may request a data connection from the LAP or from an individual AP, wherein the data connection is between at least two APs. The data connection may have a throughput/bandwidth exceeding the maximum capacity of individual APs. The LAP may manage connections between the APs and connections between the mobile device and the APs.
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Patent Agency Ranking
公开(公告)号：US12218832B1
公开(公告)日：2025-02-04
申请号：US17219644
申请日：2021-03-31
Applicant: Amazon Technologies, Inc.
Inventor： Rongsheng Huang , Jungtao Liu , Hongbo Tian , Yinghua Ye
Abstract: A multi-radio service of a provider network may be used to manage and route payloads for client edge devices that use multiple types of radios. The multi-radio service may associate different types of radio controllers with an edge device of a client, so that messages that are transmitted from different types of edge device radios can be handled by different radio controllers. A radio controller may receive a message and extract the payload from the message based on the data/data format specific to the radio protocol used to transmit the message. When a client-owned cloud application sends a payload to an edge device, the multi-radio service may select, based on criteria (e.g., fastest data transmission), the radio of the edge device from multiple available radios. The corresponding radio controller may then generate and send a message to the selected radio of the edge device (e.g., via a corresponding gateway).
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公开(公告)号：US10548026B1
公开(公告)日：2020-01-28
申请号：US15465236
申请日：2017-03-21
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Jungtao Liu
Abstract: Network hardware devices are organized in a wireless mesh network (WMN) including a base station node (BSN) device connected to a tower in a geographic area and multiple home access node (HAN) relay devices located in a geographic area and separated from one another by a distance up to approximately 500 meters. A first set of HAN relay devices is organized in a first linear sub-mesh network with a first deployment layout having an S-shape or an inverse S-shape. Each of the first set of HAN relay devices establishes a frequency-division duplex (FDD) link between itself and at least one other HAN relay device and at least one of the first set of HAN relay devices establishes a time-division duplex (TDD) link over which the at least one of the HAN relay devices communicates with the BSN device.
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公开(公告)号：US10305766B1
公开(公告)日：2019-05-28
申请号：US15965449
申请日：2018-04-27
Applicant: Amazon Technologies, Inc.
Inventor： Ce Zhang , Koohyun Um , Jungtao Liu , Peruvemba Ranganathan Sai Ananthanarayanan
Abstract: A system and method include processing logic receiving, from a wireless transceiver of a first device, first data indicative of channel state information (CSI) of a first communication link between the wireless transceiver and a wireless transmitter of a second device, the first device and the second device being located in a building. The logic pre-preprocesses the first data to generate input vectors composed of statistical parameter values derived from sets of discrete samples of the first data. The logic processes, through a long short-term memory (LSTM) layer of a neural network, the input vectors to generate multiple hidden state values of the neural network. The logic processes, through a set of additional layers of the neural network, respective hidden state values of the multiple hidden state values to determine that a human is present in the building.
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公开(公告)号：US10219142B2
公开(公告)日：2019-02-26
申请号：US15595479
申请日：2017-05-15
Applicant: Amazon Technologies, Inc.
Inventor： Lori Yoshida , Varadarajan Gopalakrishnan , Sheung Mei Chan , Avinash Joshi , Andrew David Price , Jungtao Liu
Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device receives, via a first radio, a beacon frame from a second mesh network device, scans, via a second radio, for a second mesh frame of the second mesh network device, and receives the mesh frame. The processing device determines a first sector identifier that identifies an antenna from which the mesh frame is transmitted, a first signal strength indicator value corresponding to the mesh frame, an unused radio and an unused channel of the second mesh network device. The processing device sends a first message to the unused radio of the second mesh network device on the unused channel via the second radio, receives a second message, and configures the multiple radios to communicate with the second mesh network device.
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公开(公告)号：US20180331914A1
公开(公告)日：2018-11-15
申请号：US15595479
申请日：2017-05-15
Applicant: Amazon Technologies, Inc.
Inventor： Lori Yoshida , Varadarajan Gopalakrishnan , Sheung Mei Chan , Avinash Joshi , Andrew David Price , Jungtao Liu
Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device receives, via a first radio, a beacon frame from a second mesh network device, scans, via a second radio, for a second mesh frame of the second mesh network device, and receives the mesh frame. The processing device determines a first sector identifier that identifies an antenna from which the mesh frame is transmitted, a first signal strength indicator value corresponding to the mesh frame, an unused radio and an unused channel of the second mesh network device. The processing device sends a first message to the unused radio of the second mesh network device on the unused channel via the second radio, receives a second message, and configures the multiple radios to communicate with the second mesh network device.
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