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    Establishing data channels between user devices and remote systems
    1.
    发明授权
    Establishing data channels between user devices and remote systems 有权

    公开(公告)号：US12069766B1

    公开(公告)日：2024-08-20

    申请号：US18114572

    申请日：2023-02-27

    Applicant: Amazon Technologies, Inc.

    Inventor： Zhao Lou ,  QingYun Wei ,  Shao-Cheng Wang ,  Avinash Joshi ,  Zhen Xie ,  Xi Chen

    IPC: H04W8/00 ,  H04L67/51 ,  H04L69/16 ,  H04W4/20 ,  H04W4/80 ,  H04W84/12

    CPC classification number: H04W8/005 ,  H04L67/51 ,  H04L69/16 ,  H04W4/203 ,  H04W4/80 ,  H04W84/12

    Abstract: Techniques for establishing communication channels between user devices experiencing network connectivity issues and remote communication systems are described herein. The techniques include the use of a secondary device to act as a proxy, or a “middle man,” to facilitate the communications with the user device. A user device may detect lack of network connectivity, and begin broadcasting advertisement messages that indicate the lack of connectivity. A secondary device may detect the advertisement message, and send a discovery message to a connectivity system indicating that it detected the advertisement message. The connectivity system can provide this information to a remote communication system, and the remote communication system can establish a connection with the secondary device and instruct the secondary device to establish a connection with the user device. The remote communication system then has a communication channel with the user device, using the secondary device, to troubleshoot the user device.

    Selecting access point based on mesh network resource utilization metric
    2.
    发明授权
    Selecting access point based on mesh network resource utilization metric 有权

    公开(公告)号：US11240746B1

    公开(公告)日：2022-02-01

    申请号：US15842355

    申请日：2017-12-14

    Applicant: Amazon Technologies, Inc.

    Inventor： Chiu Ngok Eric Wong ,  Avinash Joshi

    IPC: H04W24/08 ,  H04W48/20 ,  H04W84/18

    Abstract: A mesh network device includes a radio and an application processor coupled to the radio. The application processor includes a network association engine, which receives, receives, from a client consumption device, a requested content identifier; receives, from a first access point, a beacon including a first throughput of the network path between the network ingress device and the first access point; receives, from a second access point, a beacon including a second throughput of the network path between the network ingress device and the second access point; determines that the first throughput exceeds the second throughput; transmits, to the first access point, an association request followed by a digital content request comprising a requested content identifier; receives, from the first access point, the first requested digital content item; and causes the requested digital content item to be rendered by the client consumption device.

    Channel diversity awareness in neighbor selection
    3.
    发明授权
    Channel diversity awareness in neighbor selection 有权

    公开(公告)号：US10595185B1

    公开(公告)日：2020-03-17

    申请号：US15886394

    申请日：2018-02-01

    Applicant: Amazon Technologies, Inc.

    Inventor： Xi Chen ,  Lori Yoshida ,  Avinash Joshi

    IPC: H04L12/28 ,  H04W8/00 ,  H04W72/12 ,  H04W40/24 ,  H04L5/00 ,  H04W48/16 ,  H04L29/08 ,  H04B7/04 ,  H04W84/18

    Abstract: Technology for neighbor selection with radio channel diversity awareness is described. In one embodiment, processing logic receives an RSSI value, a neighbor-sector identifier that identifies an antenna, and an unused channel list from each neighboring mesh network device. The processing logic generates a data structure with data in entries that are sorted according to an order of ascending or descending RSSI values. The processing logic performs a first search of the data structure to obtain a first set of radio channels for a first set of communication links and a second search to obtain a second set of radio channels for a second set of communication links. The processing logic determines that the second set of radio channels is higher than a second connectivity-quality metric value of the first set of radio channels and sends a neighbor pairing request to each neighboring mesh network device in the second set.

    Remedying wireless-network connection failures
    5.
    发明授权
    Remedying wireless-network connection failures 有权

    公开(公告)号：US11916910B1

    公开(公告)日：2024-02-27

    申请号：US17357873

    申请日：2021-06-24

    Applicant: Amazon Technologies, Inc.

    Inventor： Ashish Kumar Shukla ,  Avinash Joshi

    IPC: H04L9/40 ,  H04W12/086 ,  H04W24/08 ,  H04W12/06

    CPC classification number: H04L63/10 ,  H04L63/083 ,  H04W12/06 ,  H04W12/086 ,  H04W24/08

    Abstract: The disclosure describes, in part, techniques for attempting to diagnose the cause of a wireless connection problem in a client computing device and, in response, performing one or more actions for remedying the problem. In some instances, the techniques describe the client device communicating with one or more other client devices in the environment to determine whether they are connected to the WAP using the same password or a different password as the client device. If the former, then the client device may determine that the network stack is likely the cause of the connection error and may attempt to restart the network stack to current problem. If the other devices indicate that they are using the same password, however, then the client device may prompt a user to re-enter the network password.

    Network loop detection in hybrid mesh networks
    8.
    发明授权
    Network loop detection in hybrid mesh networks 有权

    公开(公告)号：US11190391B1

    公开(公告)日：2021-11-30

    申请号：US15954158

    申请日：2018-04-16

    Applicant: Amazon Technologies, Inc.

    Inventor： Avinash Joshi ,  Ashish Kumar Shukla ,  Radhakrishnan Suryanarayanan ,  Sarang Shrikrishna Wagholikar

    IPC: H04L12/24 ,  H04L12/26 ,  H04W84/18

    Abstract: Technology for network loop detection in a hybrid mesh network is described. In one embodiment, processing logic receives a network event message indicating a change in a network topology of a mesh network and, responsive to the network event message, determines that the mesh network includes at least one network loop comprising a plurality of communication links connecting two nodes of the mesh network. The processing logic further determines that the at least one network loop includes at least one wired communication link and disables at least one of the plurality of communication links to disconnect the at least one network loop.

    Intelligent security system
    9.
    发明授权
    Intelligent security system 有权

    公开(公告)号：US11037432B1

    公开(公告)日：2021-06-15

    申请号：US16714321

    申请日：2019-12-13

    Applicant: Amazon Technologies, Inc.

    Inventor： Ashish Kumar Shukla ,  Sakthi Kannan Ramabadran ,  Xi Chen ,  Armando J. Lucrecio ,  Avinash Joshi

    IPC: G08B25/00 ,  G08B25/14 ,  G06F16/335 ,  G06N20/00

    Abstract: Systems and methods of security monitoring using a learning process are provided. Intelligent security systems may perform a learning process to observe the paths of travel by occupants, as detected by various sensors distributed throughout a monitored location over a period of time. After the security system is initially installed, the system may learn the various paths taken by occupants of the house by keeping track of the sequence in which the sensors are activated due to normal human activity. Based on this data, a fully connected graph of sensors with all valid interconnections between sensors is available to the security system.

    Channel diversity-aware routing in wireless mesh networks
    10.
    发明授权
    Channel diversity-aware routing in wireless mesh networks 有权

    公开(公告)号：US10484925B1

    公开(公告)日：2019-11-19

    申请号：US15886488

    申请日：2018-02-01

    Applicant: Amazon Technologies, Inc.

    Inventor： Xi Chen ,  Avinash Joshi

    IPC: H04W40/16 ,  H04W8/00 ,  H04W40/24 ,  H04W76/12 ,  H04W48/10 ,  H04L29/08 ,  H04W84/18

    Abstract: A method of route discovery in wireless mesh networks comprises: receiving, using a first radio channel, by a first mesh network device of a wireless mesh network, a first route request identifying a destination mesh network device of the wireless mesh network, a first count of interfering communication links on a network path traversed by the first route request, and a second radio channel utilized by a second mesh network device along the network path; determining that the first radio channel matches the second radio channel; incrementing the first count of interfering communication links to produce a second count of interfering communication links; and broadcasting a second route request including an identifier of the destination mesh network device, a value reflecting the second count of interfering communication links, and an identifier of the first radio channel.

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