CONTENTION-BASED DISCOVERY AND SECURE RANGING TECHNIQUES FOR CONGESTED ENVIRONMENTS

    公开(公告)号:US20230353365A1

    公开(公告)日:2023-11-02

    申请号:US17931072

    申请日:2022-09-09

    Applicant: APPLE INC.

    CPC classification number: H04L9/3226 H04L9/0825 H04L9/3297

    Abstract: A mobile device may receive a plurality of polling messages with each polling message including an identifier of a particular access device transmitting the polling message. Each polling message of the plurality of polling messages may be transmitted during a polling phase. The mobile device may select a timeslot of a response phase of a communication session. The mobile device may transmit a response message during the timeslot of the response phase. The mobile device may receive, during a third phase, an assignment message including an assigned timeslot for a response phase of a future session. The mobile device may perform secure ranging with one or more access devices of the plurality of access devices during the future session using the assigned timeslot. The mobile device may provide an access credential to the one or more access devices based on a location determined using the secure ranging.

    Multi-Resource-Unit Aggregation
    85.
    发明公开

    公开(公告)号:US20230246743A1

    公开(公告)日:2023-08-03

    申请号:US18298270

    申请日:2023-04-10

    Applicant: Apple Inc.

    CPC classification number: H04L1/1621 H04L5/0007 H04L5/0098 H04L1/0057

    Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.

    Faster retransmission in multi-link communication

    公开(公告)号:US11677507B2

    公开(公告)日:2023-06-13

    申请号:US17183170

    申请日:2021-02-23

    Applicant: Apple Inc.

    CPC classification number: H04L1/1812

    Abstract: An electronic device (such as an access point) that performs a remedial action is described. This electronic device may transmit, using a first radio in the electronic device, a physical layer convergence protocol (PLCP) protocol data unit (PPDU) to a recipient electronic device on a first link between the electronic device and the recipient electronic device, where the PPDU includes a PPDU preamble and a set of media access control (MAC) protocol data units (MPDUs). Then, the electronic device may receive, using a second radio in the electronic device, feedback from the recipient electronic device on a second link between the electronic device and the recipient electronic device. Next, the electronic device may perform the remedial action based at least in part on the feedback. For example, the electronic device may abort the PPDU transmission and/or retransmit one or more of the set of MPDUs.

    Multi-resource-unit aggregation
    87.
    发明授权

    公开(公告)号:US11641254B2

    公开(公告)日:2023-05-02

    申请号:US17194627

    申请日:2021-03-08

    Applicant: Apple Inc.

    Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.

    Link-Specific Block Acknowledgment for Multi-Link Communication

    公开(公告)号:US20230117751A1

    公开(公告)日:2023-04-20

    申请号:US18084130

    申请日:2022-12-19

    Applicant: Apple Inc.

    Abstract: An electronic device that communicates frames is described. During operation, the electronic device may transmit the frames addressed to a recipient electronic device and associated with multiple links between the electronic device and the recipient electronic device. Then, the electronic device may receive block acknowledgments for at least a subset of the frames, where a given block acknowledgment is associated with the recipient electronic device and indicates received frames on a given link in the links. Moreover, the electronic device may control an amount of traffic conveyed on the links based at least in part on the block acknowledgments. Next, the electronic device may store a remainder of the frames based at least in part on the block acknowledgments, where the frames include the subset of the frames and the remainder of the frames. Note that the frames may have a common traffic identifier.

    Link-specific block acknowledgment for multi-link communication

    公开(公告)号:US11533132B2

    公开(公告)日:2022-12-20

    申请号:US17133188

    申请日:2020-12-23

    Applicant: Apple Inc.

    Abstract: An electronic device that communicates frames is described. During operation, the electronic device may transmit the frames addressed to a recipient electronic device and associated with multiple links between the electronic device and the recipient electronic device. Then, the electronic device may receive block acknowledgments for at least a subset of the frames, where a given block acknowledgment is associated with the recipient electronic device and indicates received frames on a given link in the links. Moreover, the electronic device may control an amount of traffic conveyed on the links based at least in part on the block acknowledgments. Next, the electronic device may store a remainder of the frames based at least in part on the block acknowledgments, where the frames include the subset of the frames and the remainder of the frames. Note that the frames may have a common traffic identifier.

    Power Savings for Multi-link Wireless Local Area Network Infrastructure

    公开(公告)号:US20220191786A1

    公开(公告)日:2022-06-16

    申请号:US17683851

    申请日:2022-03-01

    Applicant: Apple Inc.

    Abstract: This disclosure relates to methods for conducting multilink communications between a user equipment device (UE) and a wireless access point (AP) over a wireless local area network (WLAN). The UE establishes a connection with an access point through a WLAN, wherein the connection utilizes a plurality of links. The UE transmits an indication to the access point through a first link of the plurality of links, where the indication specifies one or more available links of the plurality of links that are available for the UE to receive downlink (DL) communications from the access point. The UE receives one or more DL communications from the access point through at least one of the one or more available links.

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