Electronic shelf label (ESL) efficient reconnect

    公开(公告)号:US11558763B2

    公开(公告)日:2023-01-17

    申请号:US17110565

    申请日:2020-12-03

    Abstract: According to various aspects and techniques to enable methods and systems for a first communication device to determine an approximate number of other communication devices that have lost contact with a host communication device. This includes determining a common future time window using a last known global time stamp and determining a transmit time within the common future time window. This also includes receiving samples that are captured during the common future time window on a predefined communication channel, as well as analyzing the received samples to estimate the total number of other communication devices.

    HANDOVER OF EXTENDED SYNCHRONOUS CONNECTION-ORIENTED LOGICAL TRANSPORT CHANNEL

    公开(公告)号:US20200221359A1

    公开(公告)日:2020-07-09

    申请号:US16239358

    申请日:2019-01-03

    Abstract: Methods, systems, and devices for wireless communications are described. One method may include determining that a quality condition of a primary Bluetooth-enabled device is lower than a quality condition of a secondary Bluetooth-enabled device. The primary Bluetooth-enabled device may transmit, to the secondary Bluetooth-enabled device, a handover request message based on the determining. The handover request message may include a subset of connection information associated with a connection between the primary Bluetooth-enabled device and a device in wireless communications with the primary Bluetooth-enabled device. The primary Bluetooth-enabled device may receive, from the secondary Bluetooth-enabled device, a handover response message based on the handover request message. As a result, the primary Bluetooth-enabled device may handover, to the secondary Bluetooth-enabled device, at least one logical transport channel of the set of logical transport channels based on the handover response message.

    Bluetooth connectionless slave broadcast burst mode

    公开(公告)号:US11375578B2

    公开(公告)日:2022-06-28

    申请号:US16250837

    申请日:2019-01-17

    Abstract: The present disclosure provides a mechanism to perform a CSB burst mode between a master device and one or more slave devices. In CSB burst mode, the master device may broadcast more than one packet of data in a CSB interval, and hence, may use the time slots in a CSB interval more efficiently than while operating in traditional CSB mode. CSB burst mode of the present disclosure may be used to improve the latency and duty cycle of data transmissions, such as for example, broadcast audio. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to broadcast a set of packets during a CSB interval, where the set of packets includes a plurality of packets. In some aspects, the apparatus may broadcast the set of packets during the CSB interval to a set of second nodes.

    Seamless link transfers between primary and secondary devices

    公开(公告)号:US10979990B2

    公开(公告)日:2021-04-13

    申请号:US16421216

    申请日:2019-05-23

    Abstract: Methods, systems, and devices for wireless communications at a wireless audio device are described. A first (e.g., primary) wireless audio device may initiate a role switch procedure with a second (e.g., secondary) wireless audio device. The first wireless audio device may disable traffic flow between the source device and the first wireless audio device and transmit synchronization information and timing information necessary for taking over the role of primary wireless audio device to the second wireless audio device. The first wireless audio device may transmit a device role switch message, and the first wireless audio device and the second wireless audio device may perform the role switch. After performing the role switch, the first wireless audio device may assume the role of a secondary wireless audio device and the second wireless audio device may assume the role of a primary wireless audio device.

    Network neighborhood alignment
    10.
    发明授权

    公开(公告)号:US10772112B2

    公开(公告)日:2020-09-08

    申请号:US16219526

    申请日:2018-12-13

    Abstract: Generally, the described techniques provide for transmission schedule coordination, and in some cases transmission schedule modification, for time division multiple access (TDMA) links amongst devices engaged in communications. A network neighborhood alignment (NNA) protocol may allow devices to inform peer devices of current (e.g., established) connections within the network neighborhood (e.g., of TDMA links established between the device and peer devices, or of TDMA links established between other per devices that are known to the device). Devices may also communicate desired connection preferences, requests for peer device current connection information (e.g., the types of data being transferred by a peer device, the connection type of links associated with the peer device), etc. In some examples, the NNA protocol may establish the information exchange via a dedicated network neighborhood channel (NNC) or via point-to-point messages exchanged between devices (e.g., where the information may then be relayed amongst peer devices).

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