公开(公告)号：US10893083B2

公开(公告)日：2021-01-12

申请号：US15164067

申请日：2016-05-25

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 ,  Oren Shani

IPC: H04L29/06 ,  H04W8/00 ,  H04W72/12 ,  H04W76/14 ,  H04W88/04

Abstract: In some embodiments, one or more wireless stations operate according to Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to NAN datapath scheduling and NAN pre-datapath operation setup and scheduling. The NAN datapath embodiments described herein provide a mechanism through which devices can communicate and provide services. Aspects of the datapath development include datapath scheduling, including datapath setup and scheduling attributes, as well as pre-datapath operation triggering and scheduling. Scheduling attributes may include a native scheduler rank and a NAN data cluster scheduler rank. NAN data cluster base schedules may be scheduled as equal-sets or subsets of datapath schedules. The datapath model may be implemented for unicast and multicast communication between wireless stations, including mobile stations.

公开(公告)号：US10785718B2

公开(公告)日：2020-09-22

申请号：US15615218

申请日：2017-06-06

Applicant: Apple Inc.

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

IPC: H04W52/02

Abstract: An access point establishes target wakeup times (TWTs) with one or more associated electronic devices in a WLAN. The access point transitions to a power-saving mode outside of the one or more TWTs. The access point maintains synchronization with the one or more electronic devices, during at least a first TWT in the one or more TWTs, by transmitting, to the one or more electronic devices, a TWT beacon that includes, or in conjunction with, synchronization information. Alternatively or additionally, during at least the first TWT, the access point transmits a multi-user trigger frame that includes the synchronization information to the one or more electronic devices. In response to the multi-user trigger frame, the access point receives data frames from the one or more electronic devices, transmits one or more acknowledgments, and transitions into the power-saving mode during a remainder of at least the first TWT.

公开(公告)号：US20200053729A1

公开(公告)日：2020-02-13

申请号：US16532995

申请日：2019-08-06

Applicant: Apple Inc.

Inventor： Daniel R. Borges ,  Oren Shani ,  Christiaan A. Hartman ,  Yong Liu ,  Charles F. Dominguez ,  Karthik R. Mekala ,  Tashbeeb Haque ,  Lawrie Kurian ,  Mete Fikirlier ,  Guoqing Li ,  Rajneesh Kumar ,  Ka Ho P. Poon ,  Brian B. Whitaker ,  Joseph Hakim ,  John A. Wilson ,  Tony Chi Wang Ng ,  Roopkumar Parthasarathy Rao ,  Curtis J. Schmidek ,  Shishir Gupta ,  Tushar R. Shah ,  Jacob H. Power ,  Bryan J. Follis ,  Anand Rajagopalan

IPC: H04W72/04 ,  H04W72/12

Abstract: An interface circuit in an electronic device may contend for access to a shared communication channel on behalf of the electronic device and a recipient electronic device, where the access has a duration. Then, the electronic device may provide a schedule frame intended for the recipient electronic device that includes information that specifies one or more time slots during the duration that are associated with the recipient electronic device and one or more communication functions of the recipient electronic device in the one or more time slots. Moreover, the electronic device may provide a data frame with data intended for the recipient electronic device. In response, the electronic device may receive a response frame associated with the recipient electronic device, where the response frame is received during at least one of the one or more time slots.

公开(公告)号：US10541856B2

公开(公告)日：2020-01-21

申请号：US15710988

申请日：2017-09-21

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Lawrie Kurian ,  Peter N. Heerboth

IPC: H04L29/08 ,  H04W84/12 ,  H04W48/16

Abstract: Embodiments relate to wireless stations that operate to configure direct communication between the wireless stations without utilizing an intermediate access point. In embodiments, a wireless station may establish a peer-to-peer communication schedule with at least one neighboring peer wireless station, announce, to the at least one neighboring peer wireless station, a schedule transition (or migration), wherein the schedule transition includes an effective time of a new schedule, and announce, to the at least one neighboring peer wireless station, the new schedule at the effective time.

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.