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    BACKUP LINK FOR LOW LATENCY COMMUNICATION
    1.
    发明申请
    BACKUP LINK FOR LOW LATENCY COMMUNICATION 有权

    公开(公告)号：US20210409979A1

    公开(公告)日：2021-12-30

    申请号：US17337748

    申请日：2021-06-03

    Applicant: Apple Inc.

    Inventor： Qi WANG ,  Yong LIU ,  Jinjing JIANG ,  Jarkko L. KNECKT ,  Lochan VERMA ,  Tianyu WU ,  Su Khiong YONG ,  Guoqing LI

    IPC: H04W24/04 ,  H04W52/02

    Abstract: Some aspects of this disclosure include apparatuses and methods for implementing backup link establishment and operation for multi-link wireless communication networks such as a wireless local area network (WLAN). Some aspects relate to an electronic device including a transceiver configured to communicate over a wireless network and a processor communicatively coupled to the transceiver. The processor receives a message including information associated with a backup link from a second electronic device. The processor further receives data associated with data traffic from the second electronic device on a primary link of the wireless network. In response to a quality of the primary link being below a threshold, the processor receives a notification frame from the second electronic device on the backup link and receives additional data associated with the data traffic from the second electronic device on the backup link or on an other link informed by the notification frame.

    BASIC BANDWIDTH DEVICE ON SECONDARY CHANNEL
    2.
    发明申请
    BASIC BANDWIDTH DEVICE ON SECONDARY CHANNEL 审中-公开

    公开(公告)号：US20200053733A1

    公开(公告)日：2020-02-13

    申请号：US16422669

    申请日：2019-05-24

    Applicant: Apple Inc.

    Inventor： Guoqing LI ,  Jarkko L. KNECKT ,  Christiaan A. HARTMAN ,  Yong LIU ,  Su Khiong YONG

    IPC: H04W72/04

    Abstract: A basic bandwidth wireless local area network (WLAN) device or station (STA) is assigned to a secondary channel. The basic bandwidth STA may be a 20 MHz STA. On the secondary channel, the basic bandwidth STA operates in a wideband mode recovering received data transmitted from an access point (AP) as part of a high bandwidth physical layer protocol data unit (PPDU). The STA and the AP can be members of a basic service set (BSS). The high bandwidth PPDU may be, for example, a 40 MHz, 60 MHz, or 80 MHz PPDU. Once on the secondary channel, the STA relies on the AP to perform channel sensing and scheduling activities, thus reducing power consumption at the STA and increasing the efficiency of the BSS. Several signaling formats are provided for indicating the secondary channel that the STA is assigned to or requests to move to.

    WIRELESS CHANNEL RESERVATION
    4.
    发明申请
    WIRELESS CHANNEL RESERVATION 审中-公开

    公开(公告)号：US20170257888A1

    公开(公告)日：2017-09-07

    申请号：US15449652

    申请日：2017-03-03

    Applicant: Apple Inc.

    Inventor： Jarkko KNECKT ,  Guoqing LI ,  Christiaan A. HARTMAN ,  Joonsuk KIM

    IPC: H04W74/08

    CPC classification number: H04W74/0816 ,  H04W84/12

    Abstract: Determining wireless local area network (WLAN) channel medium usage information by WLAN access points (APs) and WLAN stations (STAs) is disclosed. A new medium access control (MAC) duration field in a request to send (RTS) message provides a duration value to be conveyed in a subsequent clear to send (CTS) message. A channel or bandwidth can then be quickly used if an addressed STA does not respond to the RTS message. Also, a STA recognizes an unexpected silence and accesses the medium when a trigger frame is followed by a CTS timeout interval. In a third embodiment, an AP requests that STAs monitor particular channels to obtain network allocation vector (NAV) information. The STAs then respond (or informatively, do not respond) to RTS messages; thus, allowing the AP and other listening devices to determine channel medium information. The AP can then schedule data exchanges based on the determined information.

    WIRELESS STATION CONTROL OF WLAN RECEIVE OPERATING MODE CHANGE
    5.
    发明申请
    WIRELESS STATION CONTROL OF WLAN RECEIVE OPERATING MODE CHANGE 审中-公开

    公开(公告)号：US20170126461A1

    公开(公告)日：2017-05-04

    申请号：US15336728

    申请日：2016-10-27

    Applicant: Apple Inc.

    Inventor： Guoqing LI ,  Christiaan A. HARTMAN ,  Joonsuk KIM ,  Su Khiong YONG ,  Yong LIU

    IPC: H04L27/26 ,  H04W72/04

    Abstract: A wireless local area network station (STA) changes a receiver operating mode (ROM) and saves power by influencing when a ROM-conforming access point (AP) transmission takes place. The STA evaluates candidate delay regimes after a negotiation exchange with the STA. The STA then instructs the AP of a selected delay regime which the AP is permitted to use when transmitting data according to the changed ROM. The ROM can involve a change in the system bandwidth demodulated by the STA and/or the number of spatial streams demodulated by the STA. The delay regime can allow the AP to transmit with little or no delay based on the changed ROM, or the delay regime may require a fixed time delay before the AP transmits according to the changed ROM.

    Spatial-Reuse Enhancement in RTS and CTS
    6.
    发明申请
    Spatial-Reuse Enhancement in RTS and CTS 审中-公开
    RTS和CTS中的空间重用增强

    公开(公告)号：US20170041798A1

    公开(公告)日：2017-02-09

    申请号：US15230090

    申请日：2016-08-05

    Applicant: Apple, Inc

    Inventor： Guoqing LI ,  Yong LIU ,  Joonsuk KIM ,  Christiaan A. HARTMAN ,  Chiu Ngok E. WONG ,  Syed Aon MUJTABA ,  Matt SEMERSKY ,  Su Khiong YONG

    IPC: H04W16/02 ,  H04W74/08 ,  H04W72/04

    CPC classification number: H04W74/0816

    Abstract: Disclosed herein are system, method, and computer program product embodiments for enabling a spatial reuse opportunity at a high efficiency (HE) station and a network allocation vector (NAV) reset capability at a legacy station using a Request to Send and/or Clear to Send (RTS and/or CTS) frame. For example, the method can include receiving a RTS frame with a redefined field that specifies spatial reuse information. The NAV can be set based on the RTS frame. The method can determine whether a second frame was received within a threshold time after a Short Interframe Space (SIFS). Finally, the method can reset the NAV based on whether the second frame was received within the threshold time.

    Abstract translation: 本文公开了一种系统，方法和计算机程序产品实施例，其使得能够在高效率（HE）站处实现空间重用机会，并且使用发送请求和/或清除至 发送（RTS和/或CTS）帧。 例如，该方法可以包括接收具有指定空间重用信息的重定义字段的RTS帧。 可以基于RTS帧设置NAV。 该方法可以确定在短帧间间隔（SIFS）之后的阈值时间内是否接收到第二帧。 最后，该方法可以基于在阈值时间内是否接收到第二帧来重置NAV。

    Multiuser Block Acknowledgment Request
    7.
    发明申请
    Multiuser Block Acknowledgment Request 审中-公开
    多用户块确认请求

    公开(公告)号：US20170012756A1

    公开(公告)日：2017-01-12

    申请号：US15203646

    申请日：2016-07-06

    Applicant: Apple Inc.

    Inventor： Guoqing LI ,  Yong Liu ,  Joonsuk Kim ,  Chiu Ngok E. Wong ,  Christiaan A. Hartman ,  Su Khiong Yong ,  Syed A. Mujtaba

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L1/18 ,  H04L1/1614 ,  H04L1/1685

    Abstract: Disclosed herein are system, method, and computer program product embodiments for performing multiuser block acknowledgement in a wireless communication protocol. Embodiments include receiving a control frame from an access point (AP). A transmission mode can be determined based on a trigger information field in the control frame. Further, a data frame to acknowledge can be determined based on a block acknowledgement request (BAR) field in the control frame. A block acknowledgment (BA) frame can be generated based on the data frame to acknowledge. The BA frame can then be transmitted to the AP based on the transmission mode, e.g., at the same time another BA frame is transmitted to the AP by another station.

    Abstract translation: 本文公开了用于在无线通信协议中执行多用户块确认的系统，方法和计算机程序产品实施例。 实施例包括从接入点（AP）接收控制帧。 可以基于控制帧中的触发信息字段来确定传输模式。 此外，可以基于控制帧中的块确认请求（BAR）字段来确定要确认的数据帧。 可以基于要确认的数据帧生成块确认（BA）帧。 然后可以基于传输模式将BA帧发送到AP，例如，同时另一个BA帧由另一个站传输到AP。

    APPARATUS AND METHOD FOR A MOBILE ACCESS POINT STATION
    9.
    发明申请
    APPARATUS AND METHOD FOR A MOBILE ACCESS POINT STATION 有权

    公开(公告)号：US20210368436A1

    公开(公告)日：2021-11-25

    申请号：US17340980

    申请日：2021-06-07

    Applicant: Apple Inc.

    Inventor： Guoqing LI ,  Dagbegnon H. BAHINI ,  Rajneesh KUMAR

    IPC: H04W52/02 ,  H04W76/28 ,  H04W72/12 ,  H04W88/08

    Abstract: Some embodiments include an apparatus and method for a mobile access point (AP) station that operates in an always-on soft AP mode where a station is associated with the mobile AP station, and switch back to operate as a station in an infrastructure mode with an AP. For example, in an always-on soft AP mode, the mobile AP station may implement a target wake time (TWT) responder power save mode feature. The mobile AP station may maintain a wake window after a beacon to enable unassociated devices to associate; establish a broadcast TWT schedule for unassociated TWT-capable devices to associate; schedule TWT for associated devices; go to sleep outside of the scheduled TWT of the associated devices; and switch back to infrastructure mode to perform as a station and maintain a connection with an AP.

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