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    Multi-User MIMO Preference-Indication Signaling
    145.
    发明申请
    Multi-User MIMO Preference-Indication Signaling 审中-公开

    公开(公告)号：US20190273553A1

    公开(公告)日：2019-09-05

    申请号：US16161470

    申请日：2018-10-16

    Applicant: Apple Inc.

    Inventor： Guoqing Li ,  Ping Wang ,  Rajneesh Kumar ,  Veerendra Boodannavar

    IPC: H04B7/08 ,  H04B7/0452 ,  H04W72/04 ,  H04W72/08 ,  H04B17/318

    Abstract: An interface circuit in a recipient electronic device (such as a cellular telephone) may provide preference-indication information for an electronic device (such as an access point). Notably, the recipient electronic device may compute preference-indication information associated with the recipient electronic device, where the preference-indication information indicates whether the recipient electronic device prefers that the electronic device use downlink (DL) multi-user (MU) MIMO transmissions when communicating with the recipient electronic device. Then, the recipient electronic device may provide the preference-indication information in a packet or a frame associated with the electronic device. In some embodiments, the recipient electronic device determines a trigger event (such as measuring a motion indication), and the computing may be selectively performed based at least in part on the trigger event. Moreover, the preference-indication information may include additional information that was used by the recipient electronic device to compute the preference indication of the recipient electronic device.

    Pre-association service discovery
    146.
    发明授权
    Pre-association service discovery 有权

    公开(公告)号：US10375179B2

    公开(公告)日：2019-08-06

    申请号：US15851335

    申请日：2017-12-21

    Applicant: Apple Inc.

    Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Guoqing Li ,  Jarkko L. S. Kneckt ,  Yong Liu

    IPC: H04W4/50 ,  G06Q30/02 ,  H04L29/08 ,  H04W12/06 ,  H04W48/16 ,  H04W84/12

    Abstract: In some embodiments, a wireless station may be configured to transmit a request to one or more access points and receive from at least one access point of the one or more access points, a response. The request may be a GAS or probe request and the response may be a GAS or probe response. The request may include an indication of one or more services sought by the wireless station and the response may include information regarding at least one service of the one or more services sought. In addition, the response may be an indication that the at least one access point has determined a match between a provided service and at least one service sought. The wireless station may be further configured to determine, based, at least in part, on the information, to associate with the access point in order to consume the at least one service.

    Power-Efficient Communication of Group-Addressed Frames
    148.
    发明申请
    Power-Efficient Communication of Group-Addressed Frames 审中-公开

    公开(公告)号：US20190200295A1

    公开(公告)日：2019-06-27

    申请号：US16113659

    申请日：2018-08-27

    Applicant: Apple Inc.

    Inventor： Christiaan A. Hartman ,  Guoqing Li ,  Yong Liu ,  Su Khiong Yong ,  Jarkko L. Kneckt

    IPC: H04W52/02

    CPC classification number: H04W52/0229 ,  H04W52/0219 ,  H04W52/0222 ,  H04W52/0235 ,  H04W84/12

    Abstract: An interface circuit in an electronic device (such as an access point) may receive a setup request associated with the recipient electronic device. The setup request may specify a group address for which the recipient electronic device wants to receive associated frames and a proposed transmission interval. Based at least in part on the proposed transmission interval, the electronic device may determine a transmission schedule and/or may assign, based at least in part on the group address, the recipient electronic device to an aggregated group having a flexible multicast service identifier (FMSID). Then, the electronic device may provide a wake-up frame for the recipient electronic device, where the wake-up frame includes an identifier of the aggregated group for which a group-addressed frame will subsequently be transmitted by the electronic device. Moreover, the wake-up frame may be provided at a transmission time based at least in part on the transmission schedule.

    Multicast in multi-user transmissions
    149.
    发明授权
    Multicast in multi-user transmissions 有权

    公开(公告)号：US10313226B2

    公开(公告)日：2019-06-04

    申请号：US15256013

    申请日：2016-09-02

    Applicant: Apple Inc.

    Inventor： Guoqing Li ,  Yong Liu ,  Joonsuk Kim ,  Christiaan A. Hartman ,  Su Khiong Yong ,  Syed A. Mujtaba ,  Matthew L. Semersky

    IPC: H04L12/18 ,  H04W76/40 ,  H04L12/761 ,  H04L29/12 ,  H04W4/06

    Abstract: Disclosed herein are system, method, and computer program product embodiments for selectively decoding a multicast subframe in a multi-user frame for a wireless communications protocol. Embodiments include transmitting a request frame including a multicast group address for a multicast group to an access point (AP). The AP can determine a multicast identifier for the multicast group based on the multicast group address in the request frame. The AP can also transmit a response frame including the determined multicast identifier to a station (STA). The STA can receive a multi-user frame containing a multicast subframe from the AP. The STA can determine whether the multicast subframe is destined for the STA based on the determined multicast identifier and a multicast identifier stored in a preamble of the multi-user frame. The STA can determine whether to decode the multicast subframe based on the determination of whether the multicast subframe is destined for the STA.

    Basic bandwidth device on secondary channel
    150.
    发明授权
    Basic bandwidth device on secondary channel 有权

    公开(公告)号：US10306640B2

    公开(公告)日：2019-05-28

    申请号：US15783784

    申请日：2017-10-13

    Applicant: Apple Inc.

    Inventor： Guoqing Li ,  Jarkko L. Kneckt ,  Christiaan A. Hartman ,  Yong Liu ,  Su Khiong Yong

    IPC: H04W52/02 ,  H04W72/04 ,  H04W84/12

    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.

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