Multi-Link Beaconing and Discovery
    35.
    发明申请

    公开(公告)号:US20210392571A1

    公开(公告)日:2021-12-16

    申请号:US17334456

    申请日:2021-05-28

    Applicant: Apple Inc.

    Abstract: An electronic device may transmit beacons associated with multiple access points that are cohosted by the electronic device, and that provide concurrent links in different bands of frequencies. The electronic device may include an access-point multi-link device (AP MLD). Moreover, the beacons may include: a basic service set identifier (BSSID) associated with the access points in the AP MLD, a service set identifier (SSID) associated with the access points in the AP MLD, and a MLD media access control (MAC) address associated with the access points in the AP MLD. Furthermore, a given beacon may be associated with a given access point and may include: information specifying a channel of a given link, a reduced neighbor report (RNR) providing information about at least the access points in the AP MLD, and a field that indicates when the given access point is included in the AP MLD.

    Identity Obscuration for a Wireless Station

    公开(公告)号:US20210014679A1

    公开(公告)日:2021-01-14

    申请号:US16887952

    申请日:2020-05-29

    Applicant: Apple Inc.

    Abstract: Disclosed herein are system, method, and computer program product embodiments for identity obscuration of a station (STA) connected to a wireless network to prevent the tracking of the STA. Embodiments include a STA configured to establish a security association with an access point (AP) based on an original long term identity for the station and an identity of the AP. The STA can transmit a new long term identity for the STA to the AP based on the security association. The STA can then transmit a request frame to change the original short term identity assigned to the STA to the AP. The STA can receive a response frame from the AP. The response frame can include a new short term identity assigned to the station by the AP. The STA can then map its new long term identity to its new short term identity assigned by the AP.

    Ranging priority indication
    37.
    发明授权

    公开(公告)号:US10555119B2

    公开(公告)日:2020-02-04

    申请号:US16155464

    申请日:2018-10-09

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for performing ranging wireless communication including prioritization. A first wireless device may transmit a request for ranging services to a second wireless device. The first wireless device may transmit an indication of a ranging priority to the second wireless device. The second wireless device may determine a granted ranging priority. The first and second wireless device may perform ranging communication according to the granted ranging priority.

    APPARATUS AND METHOD FOR TRANSMITTING A RANGING PACKET COMPATIBLE WITH LEGACY 802.11 SYSTEMS

    公开(公告)号:US20190037549A1

    公开(公告)日:2019-01-31

    申请号:US15937365

    申请日:2018-03-27

    Applicant: Apple Inc.

    Abstract: Communicating wireless devices collaborate and utilize waveforms to enable secure channel estimation. To protect against a repetitive replay attack, some embodiments include Single Carrier Physical Layer (SC-PHY) waveforms and/or interpolated OFDM waveforms that do not include a repeatable or predictable structure. The waveforms are transmitted in ranging packet structures that are compatible with legacy 802.11 technologies that do not utilize secure channel estimation. The ranging packets are received in combination with the information previously exchanged to enable the receiving wireless system to securely determine a channel estimate (e.g., determine a channel estimate without an interloper transmission that is not an authentic first arrival path in a multi-path channel between the wireless systems). Thus, one or both of the wireless systems can estimate the distance between them (or range). Devices utilizing legacy 802.11 technologies may receive the ranging packet structures and determine durations for deferring access to the channel.

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