Time Sharing Among Multiple Wireless Stations During a Single Resource Unit

    公开(公告)号:US20240106584A1

    公开(公告)日:2024-03-28

    申请号:US18472655

    申请日:2023-09-22

    Applicant: Apple Inc.

    CPC classification number: H04L5/0007 H04W72/121 H04W72/23

    Abstract: Payload transmission of multiple stations on a single resource unit may be performed. New and/or updated signaling may be introduced to enable a transmitter, e.g., an access point (AP), to include information/signaling in the preamble or in other frames. A receiver (e.g., a wireless station) that receives this information/signaling may accordingly determine in which RU it should decode to receive its allocated data or payload, allowing multiple receivers or STAs to share a single resource unit (RU). The new/updated signaling may include modified hybrid downlink multiuser signaling in Ultra High Reliability Signal (UHR-SIG), a group association identifier (gAID), a predefined special AID corresponding to an RU with use of a Bloom filter, multiple predefined special AIDs each corresponding to a non-overlapping group of wireless stations, and/or signaling announcing time sharing of single RUs.

    TECHNIQUES FOR RECEIVING FRAMES WITH SECURELY SCRAMBLED PAYLOAD

    公开(公告)号:US20240049208A1

    公开(公告)日:2024-02-08

    申请号:US18231704

    申请日:2023-08-08

    Applicant: Apple Inc.

    CPC classification number: H04W72/0466 H04L5/0055

    Abstract: Techniques are directed toward secure scrambling. An example method includes receiving, by a first communication device a physical layer protocol data unit (PPDU) frame from a second communication device. The first communication device can determine a PPDU frame type based at least in part on a preamble of the PPDU frame. The first communication device can apply a PPDU frame type-based key and a determined service field value to implement a descrambling process for a medium access control (MAC) header of the PPDU frame. The first communication device can descramble a payload based at least in part on de-obfuscating the MAC header. The first communication device selecting a scrambler seed for scrambling an acknowledgement (ACK) message. The first communication device scrambling the ACK message based on the selected scrambler seed.

    TECHNIQUES FOR TRANSMITTING FRAMES WITH SECURELY SCRAMBLED PAYLOAD

    公开(公告)号:US20240048542A1

    公开(公告)日:2024-02-08

    申请号:US18231703

    申请日:2023-08-08

    Applicant: Apple Inc.

    CPC classification number: H04L63/0485

    Abstract: Techniques are directed toward secure scrambling. An example method includes a first device encrypting a payload to be included in a physical layer protocol data unit (PPDU) frame. The determining a PPDU frame type based at least in part on an association with a second device. The first device can select a key based at least in part on the association with second device. The first device can encrypt a payload to be included in a physical layer protocol data unit (PPDU) frame. The first device can determine a PPDU frame type based at least in part on an association with a second communication device. The first device can obfuscate the field of the MAC header. The first device can scramble the encrypted payload using a service field value. The first device can transmit the PPDU frame to the second device.

    Block acknowledgement operation for multi-link WLAN

    公开(公告)号:US11581980B2

    公开(公告)日:2023-02-14

    申请号:US16941146

    申请日:2020-07-28

    Applicant: Apple Inc.

    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.

    Protected High-Throughput Control Subfield

    公开(公告)号:US20220132306A1

    公开(公告)日:2022-04-28

    申请号:US17504610

    申请日:2021-10-19

    Applicant: Apple Inc.

    Abstract: During operation, an electronic device may encrypt an A-control subfield. Then, the electronic device may provide the frame addressed to a second electronic device, where the frame includes a media access control (MAC) header and the MAC header includes the A-control subfield that is encrypted. Note that the encrypted A-control subfield may be jointly encrypted with data in a payload in the frame. Moreover, the encrypted A-control subfield may be separated from the payload in the frame by one or more additional subfields or may be adjacent to the payload in the frame. Furthermore, the MAC header may include an indicator that indicates whether the A-control subfield is encrypted. Additionally, the frame may include a preamble that indicates whether the A-control subfield is encrypted. The frame may be received by the second electronic device. After receiving the frame, the second electronic device may decrypt the A-control subfield.

    Queuing latency aware buffer status report

    公开(公告)号:US11284292B2

    公开(公告)日:2022-03-22

    申请号:US16701267

    申请日:2019-12-03

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing a queuing latency aware buffer status report (BSR). 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 determine an amount of data queued in a buffer for transmission over the wireless network and determine latency information associated with the queued data. The one or more processors generate a queuing latency aware buffer status report (BSR) based at least on the determined latency information. The electronic device transmits the queuing latency aware BSR to an access point.

    Link-Specific Block Acknowledgment for Multi-Link Communication

    公开(公告)号:US20210211234A1

    公开(公告)日:2021-07-08

    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:US20210014784A1

    公开(公告)日:2021-01-14

    申请号:US16850110

    申请日:2020-04-16

    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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