Block acknowledgment operation for multi-link WLAN

    公开(公告)号:US12034539B2

    公开(公告)日:2024-07-09

    申请号:US18108193

    申请日:2023-02-10

    Applicant: Apple Inc.

    CPC classification number: H04L1/1621 H04L1/1614 H04L1/189 H04W28/04

    Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing block acknowledgment (BA) operations for multi-link wireless communication networks. For example some embodiments relate to an electronic device including a transceiver and one or more processors communicatively coupled to the transceiver. The one or more processors transmit, using the transceiver and to a second electronic device, a first set of one or more frames on a first link and a second set of one or more frames on a second link. The one or more processors receive, using the transceiver and from the second electronic device, a first block acknowledgment (BA) frame on the first link and a second BA frame on the second link. The one or more processors further determine, based on received first BA frame and the second BA frame, a failed or missing frame of the first set of one or more frames transmitted on the first link.

    Group cast with retries (GCR) in a multi-link WLAN system

    公开(公告)号:US12004050B2

    公开(公告)日:2024-06-04

    申请号:US17721978

    申请日:2022-04-15

    Applicant: Apple Inc.

    CPC classification number: H04W4/06 H04L1/08 H04W72/30 H04W88/08

    Abstract: Embodiments are disclosed for group cast with retries (GCR) in a multi-link wireless communications system. In some embodiments, an access point (AP) multi-link device (MLD) can exchange information with a non-AP MLD to establish a GCR-multi-link operation (MLO) agreement corresponding to a group address, wherein the information includes, but is not limited to: a GCR primary link or a GCR primary link set of the AP MLD, an association identifier (AID) that corresponds to the group address. In some embodiments, the AP MLD can transmit a GCR frame subject to the GCR-MLO agreement, where the GCR frame includes a sequence number assigned from sequence number space (SNS)_GCR_MLO defined at a MLD level, and generate a Group Temporal Key (GTK)_GCR_ML at the MLD level, where the GTK_GCR_ML enables encryption and decryption of the GCR frame.

    Link-specific block acknowledgment for multi-link communication

    公开(公告)号:US11984984B2

    公开(公告)日:2024-05-14

    申请号:US18084130

    申请日:2022-12-19

    Applicant: Apple Inc.

    CPC classification number: H04L1/1621 H04L5/0044

    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.

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