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.

公开(公告)号：US20180317178A1

公开(公告)日：2018-11-01

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 ,  H04W40/00 ,  H04W40/24 ,  H04L1/00 ,  H04L12/931 ,  H04L29/08 ,  H04W88/02 ,  H04W84/12

CPC classification number: H04W52/0274 ,  H04L1/0003 ,  H04L49/201 ,  H04L69/22 ,  H04L69/323 ,  H04W40/005 ,  H04W40/244 ,  H04W52/0209 ,  H04W52/0225 ,  H04W84/12 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/26

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：US09954642B2

公开(公告)日：2018-04-24

申请号：US15082505

申请日：2016-03-28

Applicant: Apple Inc.

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

IPC: H04W28/02 ,  H04L1/00 ,  H04L12/801 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04L1/0026 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0021 ,  H04L47/29 ,  H04W28/0236 ,  H04W74/0808 ,  H04W84/12

Abstract: In some embodiments, a first wireless device initializes a first threshold and sends a first frame transmission to a second wireless device. When the first wireless device determines that the first frame transmission was successful, it adjusts the first threshold to a second threshold that is greater than the first threshold. Additionally, when the first wireless device determines that the first frame transmission was not successful, the first wireless device adjusts the first threshold to a third threshold that is less than the first threshold. The thresholds can be associated with any measure, including carrier sensitivity and/or energy detection.

公开(公告)号：US20180035376A1

公开(公告)日：2018-02-01

申请号：US15645344

申请日：2017-07-10

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04L12/861 ,  H04W68/00 ,  H04W72/12 ,  H04W8/00 ,  H04W56/00

CPC classification number: H04W52/0235 ,  H04L49/90 ,  H04W8/005 ,  H04W56/001 ,  H04W68/00 ,  H04W72/12 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/168 ,  Y02D70/26

Abstract: In embodiments, one or more wireless stations operate to configure direct communication with neighboring mobile stations, i.e., 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 stations can communicate and provide services. In particular, embodiments described herein relate to the use of data buffering indications in a NAN communication system.

公开(公告)号：US09846741B2

公开(公告)日：2017-12-19

申请号：US14947752

申请日：2015-11-20

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Guoqing Li ,  Chiu Ngok E. Wong ,  Su Khiong Yong

IPC: H04M1/66 ,  G06F17/30 ,  G06K9/18 ,  H04W4/08 ,  H04W12/04 ,  H04W12/08 ,  H04W12/06

CPC classification number: G06F17/30675 ,  G06F17/30011 ,  G06K9/18 ,  H04L63/065 ,  H04L63/20 ,  H04W4/08 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W84/12

Abstract: The disclosed embodiments provide a system that provides wireless service groups. During operation, a wireless device's advertising mechanism advertises a service group over Wi-Fi, wherein the service group comprises at least the wireless device and wherein the service group's security requirements regulate multicast protection within the service group. In response to receiving a request from a second device to be admitted into the service group, the wireless device's security mechanism admits the second device into the service group and sends the service group's security requirements to the second device, thereby enabling the second device to initialize multicast protection in accordance with the service group's security requirements.