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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.
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公开(公告)号：US11785522B1
公开(公告)日：2023-10-10
申请号：US17178035
申请日：2021-02-17
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla
Abstract: Technologies for path selection in wireless mesh network of wireless network devices are described. One method includes receiving a first response from a second mesh network device and a second response wirelessly from the second mesh network device, the first response associated with a first request to establish a first wireless path with a third mesh network device and the second response associated with a second request to establish a second wireless path with a fourth mesh network device. The method determines that the first response and the second response include a same sequential number (SN) for the second mesh network device. The method forwards the first response to the third mesh network device and forwards the second response to the fourth mesh network device.
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公开(公告)号：US11483766B1
公开(公告)日：2022-10-25
申请号：US16562059
申请日：2019-09-05
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla , Avinash Joshi
IPC: H04W52/02 , H04W48/10 , H04W48/20 , G06F1/3206 , H04W12/06 , H04L61/103 , H04W84/12 , H04L101/622
Abstract: Techniques for increasing the security and reliability of frame transmission are described. In an example, a network access device transmits a first frame indicating that a protected frame is to be used for a power mode change. The network access device receives a second frame that includes an identifier of a device and a change to a power mode of the device. The network access device determines whether the second frame is protected. In addition, the network access device determines whether data received for the device is to be stored prior to transmission to the device based at least in part on whether the second frame is protected.
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公开(公告)号：US10855351B1
公开(公告)日：2020-12-01
申请号：US16215186
申请日：2018-12-10
Applicant: Amazon Technologies, Inc.
Inventor： Kun Ting Tsai , Kiran Kumar Edara , Sarang Wagholikar , Omar Fawazhashim Zakaria , Ashish Kumar Shukla , Tzung-I Lee , Ali Mirkamali
IPC: H04B7/06 , H01Q21/28 , H01Q21/29 , H04B17/327 , H01Q25/00
Abstract: A wireless device includes a radio, a first directional antenna, a second directional antenna, an omnidirectional antenna, and a switch selectively coupled between the radio and the first directional antenna, the second directional antenna, and the omnidirectional antenna. A processor is coupled to the switch and to, for a frame: determine, based on an arbitration table, a destination medium access control address of a client wireless device and identifiers of antennas for transmitting the frame and receiving acknowledgement data; cause the switch to couple the radio to the first directional antenna; transmit the frame to the client wireless device via the first directional antenna, wherein the first client wireless device is located along a first direction with respect to the wireless device; cause the switch to couple the radio to the omnidirectional antenna; and receive an acknowledgment, corresponding to the frame, from the client wireless device via the omnidirectional antenna.
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公开(公告)号：US11812379B1
公开(公告)日：2023-11-07
申请号：US17717760
申请日：2022-04-11
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla
Abstract: Techniques for improving the power management of devices are described. In an example, a device transitions into a power save mode. While in the power save mode, the device performs a number of operations. The operations include transitioning into an awake state and determining that the device has no data to transmit to a network access device. The operations also include determining a sequence number associated with data transmission to the network access device. The operations further include generating a frame that includes a header field and a payload field. The header field includes the sequence number and power management data. The power management data indicates a transition of the device to the awake state. Additionally, the operations include transmitting the frame to the network access device.
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Patent Agency Ranking
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
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.
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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.
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公开(公告)号：US10966277B1
公开(公告)日：2021-03-30
申请号：US16447673
申请日：2019-06-20
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla
Abstract: Technologies for preventing insider attacks in a wireless network are described. A processor of a first device receives a disconnect frame with i) a source address that identifies a wireless access point (WAP) device in a wireless network and ii) a destination address that the disconnect frame is addressed to all devices in the wireless network. The processor sends a frame to the WAP device after expiration of a configurable delay and receives an acknowledgment frame from the WAP device. The processor determines that the disconnect frame is a non-authorized disconnect frame received from a second device and is not to be processed. The processor can increment a first counter value to a second counter value, the second counter value indicating how many times a non-authorized disconnect frame is received at the first device. The processor sends a management frame with the second counter value to the WAP device.
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公开(公告)号：US11553522B1
公开(公告)日：2023-01-10
申请号：US17076733
申请日：2020-10-21
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla
Abstract: Technologies directed to reducing medium access contention within a wireless network are described. One method includes a first wireless device (e.g., an access point (AP) or mesh station) receiving first data with a first schedule from a second wireless device. Both wireless devices operate on a first channel or an adjacent channel in a wireless network. The first schedule defines a first interval during which the second wireless device transmits or receives frames on the first channel or the second channel. The first wireless device generates a second schedule that defines a second interval during which the first wireless device transmits or receives frames on the first or second channels, the second interval being non-overlapping with the first interval. First wireless device sends second data with the second schedule to the second AP device and communicates a data frame with a device connected to the first wireless device according to the second schedule.
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公开(公告)号：US11070467B1
公开(公告)日：2021-07-20
申请号：US16422768
申请日：2019-05-24
Applicant: Amazon Technologies, Inc.
Inventor： Ashish Kumar Shukla
IPC: H04L12/703 , H04W84/12 , H04W84/18 , H04W72/04 , H04W8/00
Abstract: Network hardware devices organized in a wireless mesh network (WMN). A first mesh network device includes processing logic that detects an error condition of a first wireless link to a next hop node in a wireless path between a second mesh network device and a third mesh network device. The processing logic sends, via a first radio of the first mesh network device, a first frame with a first path error message over a second wireless link to a precursor hop node in the wireless path. The first path error message identifies the error condition of the first wireless link. The processing logic generates a second frame with a copy of the first path error message and sends, via a secondary radio of the first mesh network device, the second frame with the copy of the first path error message.
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