公开(公告)号：US20190357308A1

公开(公告)日：2019-11-21

申请号：US16403885

申请日：2019-05-06

Applicant: Apple Inc.

Inventor： Lawrie Kurian ,  Peter N. Heerboth ,  Yong Liu ,  Tashbeeb Haque

IPC: H04W88/10 ,  H04W8/00 ,  H04W28/02 ,  H04W80/02 ,  H04W72/04 ,  H04W4/70

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 mitigate medium congestion in discovery windows may include suppressing solicited publisher responses via an SRF for a first time period and resetting the SRF after the first time period in order to receive updates from peer devices.

公开(公告)号：US10484941B2

公开(公告)日：2019-11-19

申请号：US15631351

申请日：2017-06-23

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Siegfried Lehmann ,  Su Khiong Yong ,  Guoqing Li

IPC: H04W52/02 ,  G08C17/02 ,  H04B7/185 ,  H04W68/02 ,  H04W84/04 ,  H04L29/06 ,  H04W48/12 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10 ,  H04W4/80

Abstract: A dual-radio AP including both a high-power (e.g., Wi-Fi) radio and a low-power (e.g., BLE) radio may support an assisted wakeup service for a power-limited dual-radio mobile device (STA). The power-limited STA may register with the AP for the assisted wakeup service, and may then disable its Wi-Fi radio (or otherwise initiate a lower-power mode). The power-limited STA may receive a BLE communication indicating the AP has pending Wi-Fi transmissions or updates applicable to the power-limited STA. In response, the power-limited STA may turn on its Wi-Fi radio and receive the pending transmissions or updates from the AP. If an AP does not include a low-power radio, then a high-power/low-power dual-radio STA that is not power-limited may serve as an assisted wakeup service proxy. The proxy may scan and trace the Wi-Fi beacons from the AP, and generate the BLE communication to the power-limited STA on behalf of the AP.

公开(公告)号：US10455401B2

公开(公告)日：2019-10-22

申请号：US15051640

申请日：2016-02-23

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Daniel R. Borges ,  Peter N. Heerboth ,  Lawrie Kurian ,  Su Khiong Yong ,  Anand Rajagopalan ,  Saravanan Balasubramaniyan ,  Tashbeeb Haque ,  Andreas Wolf ,  Guoqing Li ,  Lilach Zukerman

IPC: H04W8/00 ,  H04W76/14 ,  H04W4/06 ,  H04L12/18 ,  H04W4/80 ,  H04W4/08 ,  H04W72/00 ,  H04W74/00

Abstract: In one set of embodiments, one or more wireless stations operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, i.e., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to reciprocating service between two or more wireless stations. The reciprocating service embodiments described herein provide a mechanism through which devices can participate in a same service instant.

公开(公告)号：US10397767B2

公开(公告)日：2019-08-27

申请号：US15341493

申请日：2016-11-02

Applicant: Apple Inc.

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

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

Abstract: In some embodiments, one or more wireless stations operate to configure direct communication with 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 peer devices to transmit availability schedules beyond 512 time units while continuing to minimize communication overhead. In some embodiments, a wireless station may discover a peer wireless station and transmit extended availability information. In some embodiments, the extended availability information may indicate one or more of an availability interval duration, a bitmap length, and/or a repeat interval of the availability information. In some embodiments, the extended availability information may indicate a maximum number of receivable spatial streams and/or a channel bandwidth. In some embodiments, the extended availability information may include or indicate availability of the wireless station for more than 512 time units.

公开(公告)号：US20190223101A1

公开(公告)日：2019-07-18

申请号：US16245323

申请日：2019-01-11

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Veerendra Boodannavar ,  Zheng Zeng ,  Yong Liu ,  Christiaan A. Hartman ,  Jarkko L. Kneckt

IPC: H04W52/02 ,  H04W76/11 ,  H04W8/00

CPC classification number: H04W52/0229 ,  H04W8/005 ,  H04W52/0206 ,  H04W76/11 ,  H04W84/12

Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up-radio (WUR) discovery frame for a recipient electronic device, where the WUR discovery frame includes an operating class of a wireless local area network (WLAN) associated with the electronic device. The operating class may specify a regulatory domain and a channel set of the WLAN. Moreover, the WUR discovery frame may include an index of a channel in the channel set. Furthermore, the WUR discovery frame may include a compressed or a partial identifier associated with the electronic device or the WLAN. The amount of compression may be based at least in part on a communication environment of the electronic device, such as a number of electronic devices, or a number of neighboring WLANs. Thus, the WUR discovery frame may have a variable size or length.

公开(公告)号：US10342013B2

公开(公告)日：2019-07-02

申请号：US15131911

申请日：2016-04-18

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Yong Liu ,  Lawrie Kurian ,  Peter N. Heerboth ,  Guoqing Li ,  Daniel R. Borges ,  Chiu Ngok E. Wong ,  Saravanan Balasubramaniyan ,  Tashbeeb Haque ,  Anand Rajagopalan

IPC: H04W74/04 ,  H04W72/04 ,  H04W76/14 ,  H04W72/12 ,  H04W84/12 ,  H04W8/00

Abstract: In some embodiments, one or more wireless stations operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., without utilizing an intermediate access point. Embodiments relate to scheduling of NAN ranging procedures, including to a first wireless station sending first information, including first scheduling preferences and a first ranging role, to a second wireless station. The first wireless device receives second information, including second scheduling preferences and a second ranging role, from the second wireless device. The first wireless station may initiate the ranging procedure based on the scheduling preferences and ranging parameters. Alternatively, the second wireless station and may initiate the ranging procedure based on the scheduling preferences and ranging parameters.

公开(公告)号：US10237870B2

公开(公告)日：2019-03-19

申请号：US15147443

申请日：2016-05-05

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/0452 ,  H04L1/18 ,  H04W84/12

Abstract: Managing orthogonal frequency division multiple access (OFDMA) uplink acknowledgements is described herein. An example system can include an interface circuit to generate a physical layer convergence protocol data unit (PPDU) including a physical layer preamble, a first sub-channel field corresponding to a first station, and a second sub-channel field corresponding to a second station. The first sub-channel field can carry a first unicast trigger corresponding to the first station, and the second sub-channel field can carry a second unicast trigger corresponding to the second station. The interface circuit can also transmit the PPDU to the first and second stations.

公开(公告)号：US20190069231A1

公开(公告)日：2019-02-28

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

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：US10219224B2

公开(公告)日：2019-02-26

申请号：US16028659

申请日：2018-07-06

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04L29/06 ,  H04L1/00 ,  H04W40/24 ,  H04W40/00 ,  H04L12/931 ,  H04W88/02 ,  H04W84/12 ,  H04L29/08

Abstract: Embodiments described herein relate to providing reduced power consumption in wireless communication systems, such as 802.11 WLAN systems. Timing information regarding power save opportunities (PSOPs) may be provided in communication frames, which may inform mobile devices of expected frame exchange periods during which they may transition to a Doze state. Additional PSOP information may be included in beacon frames, which may inform mobile devices of expected multicast periods during which they may transition to a Doze state. This may operate to provide improvements in terms of power consumption.

公开(公告)号：US20180376419A1

公开(公告)日：2018-12-27

申请号：US16013697

申请日：2018-06-20

Applicant: Apple Inc.

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

IPC: H04W52/02

Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up beacon to a recipient electronic device. During operation, the interface circuit may provide a wake-up beacon associated with a predefined sub-channel in one or more channels in a band of frequencies, where the wake-up beacon is for a wake-up radio in the recipient electronic device. Moreover, the wake-up beacon may be provided within an associated time interval, such as a keep-alive interval of the electronic device. In some embodiments, the wake-up beacon includes a field with channel information that specifies one or more second channels used by a main radio in the recipient electronic device. Alternatively or additionally, the wake-up beacon may include a field with service information that specifies one or more types of services and/or a field with information specifying a transmit power of the interface circuit.