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公开(公告)号：US20250063478A1
公开(公告)日：2025-02-20
申请号：US18529282
申请日：2023-12-05
Applicant: Silicon Laboratories Inc.
Inventor： Manav Kumar Mehta , Hasan Ali Stationwala , Atul Suresh Joshi , Mathieu Kardous , Ashish Bajaj
Abstract: A system and various methods to implement a Digital Twin with a low power Wi-Fi device is disclosed. The low power Wi-Fi device seeks a Digital Twin at the time of commissioning to serve as its proxy node while it is in sleep mode. Additionally, techniques to address the situation where the Digital Twin becomes unavailable are also disclosed. Finally, techniques to create and update a chain of Digital Twins are also disclosed.
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公开(公告)号：US20240414561A1
公开(公告)日：2024-12-12
申请号：US18206178
申请日：2023-06-06
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala
Abstract: A technique for configuring multi-protocol nodes for IoT applications initially configures the multi-protocol nodes in a PAN network (e.g., a BLE mesh network). In response to a trigger, the multi-protocol nodes self-configure into a heterogeneous network accessible by a smart device. Each multi-protocol node enables LAN communications and searches for a LAN networking device for a predetermined interval. Nodes directly reachable by a LAN networking device reconfigure themselves to serve as a proxy to nodes that are out of range of the LAN networking device. The multi-protocol nodes publish their LAN connectivity status to neighboring nodes. After each of the multi-protocol nodes have received the connectivity status of corresponding neighboring nodes, the nodes determine their role in a heterogeneous network, e.g., a pure Wi-Fi node, a Wi-Fi-to-BLE mesh bridge connectivity node, or a pure BLE mesh node, and self-configure in a corresponding connectivity mode.
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公开(公告)号：US20240195452A1
公开(公告)日：2024-06-13
申请号：US18080130
申请日：2022-12-13
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala
IPC: H04B1/713 , H04B17/327
CPC classification number: H04B1/713 , H04B17/327
Abstract: A BLE system includes a network controller, peripherals, and central. As one of the peripherals begins to roam, the current central device in a connection with the peripheral detects when the peripheral device is moving away from the current central. Other centrals receive requests to perform coordinated sensing of transmissions from the peripheral device to the current central device. The coordinated sensing includes the other central devices monitoring transmissions from the peripheral device to determine respective received signal strength indicators (RSSIs) on at least one frequency corresponding to a frequency hopping pattern of the connection. The other centrals report the coordinated sensing results to the network controller which determines a next central based, at least in part, on the sensed RSSIs. The network controller sends blacklists to centrals that are not the next central and the peripheral disconnects from the current central, advertises, and reconnects with the next central.
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公开(公告)号：US12107621B2
公开(公告)日：2024-10-01
申请号：US18080130
申请日：2022-12-13
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala
IPC: H04B17/327 , H04B1/713
CPC classification number: H04B1/713 , H04B17/327
Abstract: A BLE system includes a network controller, peripherals, and central. As one of the peripherals begins to roam, the current central device in a connection with the peripheral detects when the peripheral device is moving away from the current central. Other centrals receive requests to perform coordinated sensing of transmissions from the peripheral device to the current central device. The coordinated sensing includes the other central devices monitoring transmissions from the peripheral device to determine respective received signal strength indicators (RSSIs) on at least one frequency corresponding to a frequency hopping pattern of the connection. The other centrals report the coordinated sensing results to the network controller which determines a next central based, at least in part, on the sensed RSSIs. The network controller sends blacklists to centrals that are not the next central and the peripheral disconnects from the current central, advertises, and reconnects with the next central.
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Patent Agency Ranking
公开(公告)号：US20240275525A1
公开(公告)日：2024-08-15
申请号：US18168815
申请日：2023-02-14
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala , Ayan Ghosh , Deepak Pancholi
IPC: H04L1/1812 , H04L5/00 , H04W4/80
CPC classification number: H04L1/1816 , H04L5/0055 , H04W4/80
Abstract: A retry technique reduces or eliminates redundant transmit streams and redundant retransmissions when multiple devices are listening to the same audio stream. The retry techniques reduce power consumption and reduce airtime usage. The retry technique includes communicating data using a hybrid isochronous group including a plurality of broadcast isochronous streams from a source device to a plurality of sink devices. The hybrid isochronous group includes, for each broadcast isochronous stream, a group of connected isochronous streams including a connected isochronous stream to the source device from each of the plurality of sink devices. The broadcast isochronous streams communicate the data and the connected isochronous streams communicate acknowledgements of receiving the data.
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公开(公告)号：US20240334362A1
公开(公告)日：2024-10-03
申请号：US18193928
申请日：2023-03-31
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala , Ayan Ghosh
CPC classification number: H04W56/0055 , H04B7/15507
Abstract: A relay network of wireless devices extends the range of synchronized playback of broadcast audio signals. A method for delivering isochronous data using a relay network includes receiving first data of an isochronous data stream from a first wireless communications device of the relay network having a first presentation delay. The first data is received by a second wireless communications device of the relay network having a second presentation delay. The method includes presenting the first data by the first wireless communications device and the second wireless communications device at a time after transmission of the first data in a second isochronous data stream by the second wireless communications device. The first data may be presented by each wireless communications device in the relay network after transmission of the first data by a last wireless communications device in the relay network.
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公开(公告)号：US20240323809A1
公开(公告)日：2024-09-26
申请号：US18124960
申请日：2023-03-22
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala , Ayan Bandhu Ghosh
CPC classification number: H04W48/10 , H04W56/001 , H04W84/18
Abstract: A system and method to improve latency in a Bluetooth mesh network is disclosed. In many Bluetooth mesh networks, devices may not be available due to power saving mode or participation in other networks. This behavior slows the propagation of packets through the Bluetooth mesh network. To address this shortcoming, the method includes transmitting a periodic advertisement from a first, or originating, device. Contained within that periodic advertisement is schedule information associated with the transmission of mesh packets, which are typically transmitted at random times. The first device later transmits mesh packets in accordance with the schedule. This is referred to as a synchronized listening window configuration. Further, other devices in the mesh network also implement the synchronized listening configuration. In this way, packets are able to propagate through the mesh network more quickly.
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8.发明公开公开(公告)号：US20240260102A1
公开(公告)日：2024-08-01
申请号：US18103674
申请日：2023-01-31
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala , Ayan Ghosh , Srinivasa Reddy Konatham , Sandeep Voruganti , Raghu Ram Sista
CPC classification number: H04W76/11 , H04W74/002
Abstract: An isochronous channel extension technique transmits asynchronous data using an isochronous channel to reduce or eliminate latency of asynchronous data transfers when asynchronous events and isochronous events with the same peer conflict. A method includes transmitting by a first device, a first data stream using a first channel and a second data stream using a second channel. The first channel has a first interval of first connection events and the second channel has a second interval of second connection events. The first connection events include a first conflicting connection event conflicting with a second conflicting connection event of the second connection events. A first packet of the first data stream associated with the first conflicting connection event is transmitted in the first conflicting connection event and a second packet of the second channel associated with the second conflicting connection event is transmitted in the first conflicting connection event.
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公开(公告)号：US20240196282A1
公开(公告)日：2024-06-13
申请号：US18080135
申请日：2022-12-13
Applicant: Silicon Laboratories Inc.
Inventor： Hasan Ali Stationwala
CPC classification number: H04W36/0058 , H04W36/0016 , H04W36/08 , H04W36/30 , H04W36/385
Abstract: A BLE system includes a network controller, peripherals, and centrals. As one of the peripherals begins to roam, the current central in a connection with the peripheral detects when the peripheral device is moving away from the current central and reports the roaming to the network controller. The peripheral receives a request from the current central to advertise for handoff evaluation during the connection and the other centrals receive requests from the network controller or from one or more of the centrals to scan for handoff evaluation purposes. The centrals determine the received signal strength from the received advertising packets and send the received signal strengths to the network controller. The network controller determines a next target central based on the received signal strengths. The network controller then causes the peripheral to disconnect from the current central and the current central advertises and establishes a connection with the next target central.
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