COORDINATED SCHEDULING AND SIGNALING OF RESTRICTED TARGET WAKE TIME (R-TWT) SERVICE PERIODS

    公开(公告)号:US20230140312A1

    公开(公告)日:2023-05-04

    申请号:US17516375

    申请日:2021-11-01

    Abstract: This disclosure provides methods, devices and systems for protecting latency-sensitive communications during restricted target wake time (r-TWT) service periods (SPs). Some implementations more specifically relate to coordinated scheduling of r-TWT SPs between OBSSs. In some aspects, a first AP may coordinate with a second AP in scheduling r-TWT SPs so that latency-sensitive traffic in a first BSS does not interfere or collide with latency-sensitive traffic in a second BSS overlapping the first BSS. In some implementations, the first and second APs may schedule their respective r-TWT SPs to be orthogonal in time. In some other implementations, the first and second APs may schedule their r-TWT SPs to overlap in time, while allocating coordinated resources to concurrent or overlapping latency-sensitive traffic in the first and second BSSs (such as in accordance with one or more multi-AP coordination techniques).

    Traffic management for wireless stations (STAs) that do not support restricted target wake time (r-TWT) operation

    公开(公告)号:US12238765B2

    公开(公告)日:2025-02-25

    申请号:US17480143

    申请日:2021-09-21

    Abstract: This disclosure provides methods, devices and systems for protecting latency-sensitive communications, during restricted target wake time (r-TWT) service periods (SPs), from non-legacy STAs that do not support r-TWT operation. Some implementations more specifically relate to preventing STAs that are not members of an r-TWT SP from acquiring transmit opportunities (TXOPs) that would otherwise overlap with the start of the r-TWT SP. In some implementations, the AP may require all non-legacy STAs associated with its basic service set (BSS) to support r-TWT operation. In some other implementations, the AP may attempt to capture a wireless channel associated with the r-TWT SP within a fixed period preceding the r-TWT SP. In some other implementations, the AP may require all associated STAs to transmit a request-to-send (RTS) frame when attempting to acquire a TXOP. Still further, in some implementations, the AP may limit the duration of TXOPs acquired by non-member STAs.

    WIRELESS PACKET HEADER PROTECTION
    34.
    发明公开

    公开(公告)号:US20240305987A1

    公开(公告)日:2024-09-12

    申请号:US18180784

    申请日:2023-03-08

    CPC classification number: H04W12/106 H04W12/0431

    Abstract: This disclosure provides methods, components, devices and systems for wireless packet header protection. Some aspects more specifically relate to supporting header integrity checks to prevent processing of maliciously altered packet headers. In some examples, a wireless communication device may generate header integrity check information based on one or more fields of a header of a first data packet. The wireless communication device may generate, based on the header integrity check information, the first data packet or a second data packet. For example, the header of the first data packet may include the header integrity check information, or a value derived therefrom. Alternatively, the header integrity check information (or the derived value) may be included in a subsequently transmitted packet (e.g., the second data packet) A receiving device may use the received header integrity check information to perform a header integrity check before processing the header of the first data packet.

    LINK PARAMETER RECOMMENDATION IN A WIRELESS LOCAL AREA NETWORK

    公开(公告)号:US20240284197A1

    公开(公告)日:2024-08-22

    申请号:US18110742

    申请日:2023-02-16

    CPC classification number: H04W24/02 H04W24/08

    Abstract: This disclosure provides methods, components, devices and systems for link parameter recommendation in a wireless local area network. A first and second wireless communication device may communicate via one or more links. The second wireless communication device may use a first set of communication parameters to communicate with the first wireless communication device, and the first wireless communication device may determine that communication with the second wireless communication device using the first set of communication parameters fails to satisfy one or more criteria. Responsive to the determination, the first wireless communication device may transmit an indication for the second wireless communication device to use a second set of communication parameters for communicating with the first wireless communication device after which the first and second wireless communication device may communicate one or more frames.

    Low latency schemes for peer-to-peer (P2P) communications

    公开(公告)号:US12004238B2

    公开(公告)日:2024-06-04

    申请号:US17513645

    申请日:2021-10-28

    CPC classification number: H04W74/085 H04L5/0055 H04L5/0098 H04L67/104

    Abstract: This disclosure provides systems and methods for requesting wireless resources for peer-to-peer (P2P) communications. In some implementations, a wireless communication device transmits a frame over a wireless medium to an access point (AP), the frame including a medium access control (MAC) header carrying a request for the AP to allocate part of a transmission opportunity (TXOP) for P2P communications between the wireless communication device and a client device. The wireless communication device receives a trigger frame allocating a portion of the TXOP for the P2P communications, and transmits or receives P2P data to or from the client device over the wireless medium during the allocated portion of the TXOP. In some instances, the MAC header of the frame includes a Quality-of-Service (QoS) Control field carrying the request. In some other instances, the MAC header of the frame includes an Aggregated-Control (A-Control) subfield carrying the request.

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