公开(公告)号：US10959103B2

公开(公告)日：2021-03-23

申请号：US16411512

申请日：2019-05-14

Applicant: Apple Inc.

Inventor： Lawrie Kurian ,  Yong Liu ,  Tashbeeb Haque

IPC: H04W84/12 ,  H04W16/10 ,  H04W16/04 ,  H04W76/10 ,  H04W28/20 ,  H04W24/10 ,  H04W74/08 ,  H04W72/04 ,  H04W76/14 ,  H04W72/02

Abstract: One or more wireless stations may operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. A mechanism for wireless stations to learn preferred channels of neighboring wireless stations and to schedule channel sequences within a time period based on the learned channels may include advertisement of preferred channels and adaptation of channel sequences, based on the preferred channels, to maximize bandwidth utilization.

公开(公告)号：US20210076165A1

公开(公告)日：2021-03-11

申请号：US17010626

申请日：2020-09-02

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Yong Liu ,  Jarkko L. Kneck ,  Tianyu Wu ,  Lawrie Kurian ,  Tashbeeb Haque ,  Leor Kehaty ,  Yoel Boger ,  Koby Vainapel

IPC: H04W4/06 ,  H04L1/18 ,  H04W74/08

Abstract: This disclosure relates to transmitting multicast information over a network, such as a wireless local area network (WLAN). A source device may transmit a multicast and a request for feedback to a plurality of sink devices. The sink devices may transmit feedback based on whether they successfully decoded the multicast. The source device may retransmit the multicast (or a portion thereof) based on the feedback.

公开(公告)号：US10924993B2

公开(公告)日：2021-02-16

申请号：US16109985

申请日：2018-08-23

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Matthew L. Semersky ,  Christiaan A. Hartman ,  Oren Shani ,  Yong Liu ,  Xiaowen Wang ,  Tushar R. Shah ,  Yoel Boger ,  Rajneesh Kumar ,  Josef Peery ,  Christian W. Mucke ,  Guoqing Li

IPC: H04W52/02 ,  H04W28/06 ,  H04W88/08 ,  H04W84/12

Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.

公开(公告)号：US10893482B2

公开(公告)日：2021-01-12

申请号：US16550640

申请日：2019-08-26

Applicant: Apple Inc.

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

IPC: H04W52/04 ,  H04W4/80 ,  H04W52/24 ,  H04W8/00 ,  H04W84/12

Abstract: Wireless stations may operate to configure direct communication with neighboring wireless stations (direct communication between wireless stations without an intermediate access point). Mechanisms for near-field device-to-device communications are disclosed. A wireless station may be configured to determine a minimum power level for a near-field device-to-device datapath. The wireless device may determine an average channel interference for a first discovery channel and compare the average channel interference to a first threshold. If the average channel interference is less than the first threshold, the wireless device may select a first transmission mode associated with a first power level and determine a maximum data rate for the first transmission mode. If the maximum data rate at least meets a quality of service requirements for a device-to-device transmission with a neighboring wireless device, the wireless device may perform device-to-device transmissions with the neighboring wireless device using the first transmission mode.

公开(公告)号：US10805056B2

公开(公告)日：2020-10-13

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: H04L5/00 ,  H04W52/02 ,  H04W28/18 ,  H04L1/00 ,  H04W84/12

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.

公开(公告)号：US20200217875A1

公开(公告)日：2020-07-09

申请号：US16723226

申请日：2019-12-20

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Jarkko L. Kneckt ,  Yong Liu ,  Christiaan A. Hartman ,  Welly Kasten

IPC: G01R1/067 ,  H04W88/08 ,  H04L29/06

Abstract: Methods, systems, and apparatus are presented for performing network probing. A user equipment device (UE) may store a record associating traditional service set identifiers (SSIDs) with corresponding Short SSIDs. According to some embodiments, the UE may receive a message including a Short SSID, and determine whether a corresponding full SSID is known to the UE. Based on the determination, a probe request may be generated, addressed to either the Short SSID or the full SSID. After transmitting the probe request, the UE may receive a probe response, which may include a full SSID corresponding to the Short SSID. The UE may store a record associating the full SSID with the Short SSID, if applicable. According to some embodiments, a UE may receive a plurality of messages including respective SSIDs, and may generate a single probe request addressed to the SSIDs. The UE may receive a plurality of probe responses.

公开(公告)号：US10681759B2

公开(公告)日：2020-06-09

申请号：US16110557

申请日：2018-08-23

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Guoqing Li ,  Lawrie Kurian ,  Peter N. Heerboth ,  Su Khiong Yong

IPC: H04W4/00 ,  H04W76/14 ,  H04W8/00 ,  H04W84/12 ,  H04W48/12

Abstract: One or more wireless stations may operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. A mechanism for a wireless station to transmit a paging beacon outside of a paging window may include establishing a paged data link with a peer station, determining that one or more data frames associated with the paged data link are pending transmission, and transmitting a beacon to the peer station outside of a scheduled paging window of the paged data link. The beacon may include a paging attribute indicating there are pending data frames.

公开(公告)号：US20200100189A1

公开(公告)日：2020-03-26

申请号：US16550640

申请日：2019-08-26

Applicant: Apple Inc.

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

IPC: H04W52/24 ,  H04W4/80 ,  H04W8/00

Abstract: Wireless stations may operate to configure direct communication with neighboring wireless stations (direct communication between wireless stations without an intermediate access point). Mechanisms for near-field device-to-device communications are disclosed. A wireless station may be configured to determine a minimum power level for a near-field device-to-device datapath. The wireless device may determine an average channel interference for a first discovery channel and compare the average channel interference to a first threshold. If the average channel interference is less than the first threshold, the wireless device may select a first transmission mode associated with a first power level and determine a maximum data rate for the first transmission mode. If the maximum data rate at least meets a quality of service requirements for a device-to-device transmission with a neighboring wireless device, the wireless device may perform device-to-device transmissions with the neighboring wireless device using the first transmission mode.

公开(公告)号：US20200084706A1

公开(公告)日：2020-03-12

申请号：US16564259

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Jarkko L. Kneckt ,  Mingguang Xu ,  Mithat C. Dogan ,  Yong Liu

IPC: H04W48/16 ,  H04B17/373 ,  H04W64/00 ,  H04L12/26

Abstract: Methods for performing error recovery during a ranging procedure may include negotiation one or more ranging parameters, including a set of secure training sequences and receipt of a first ranging frame that may include a first dialog token and may have an appended first secure training sequence. The first ranging frame may be decoded based on the first dialog token but not correlated based on the first secure training sequence. A first acknowledgment that may include an appended second secure training sequence may be transmitted. The second secure training sequence may be associated with a prior dialog token. A second ranging frame that may include a second dialog token and may have an appended third secure training sequence may be received. The second ranging frame may be decoded based on the third dialog token and correlated based on the third secure training sequence.

公开(公告)号：US10588168B2

公开(公告)日：2020-03-10

申请号：US15926016

申请日：2018-03-20

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Guoqing Li ,  Lawrie Kurian ,  Peter N. Heerboth ,  Su Khiong Yong

IPC: H04W76/14 ,  H04W76/27 ,  H04L12/825 ,  H04W52/02 ,  H04W36/00 ,  H04W8/00 ,  H04W84/18 ,  H04W84/12 ,  H04W88/06

Abstract: In some embodiments, one or more wireless stations operate to configure direct communication with one or more neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to a mechanism for a wireless station to transmit a pause indication to one or more neighboring peer wireless stations, indicating a pause in direct communication.