公开(公告)号：US20190075519A1

公开(公告)日：2019-03-07

申请号：US16121272

申请日：2018-09-04

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Christiaan A. Hartman ,  Zheng Zeng

IPC: H04W52/02

Abstract: A recipient electronic device that receives a wake-up frame is described. This recipient electronic device may include an interface circuit that communicates with an electronic device, where the interface circuit includes a main radio and a wake-up radio (WUR) that at least selectively transitions the main radio from a lower-power mode to a higher-power mode. During operation, the WUR receives the wake-up frame intended for the recipient electronic device, where the wake-up frame comprises a payload field with data. For example, the wake-up frame may specify: a total size of the wake-up frame, and/or a size of the payload field. In response to the wake-up frame, the WUR selectively transitions the main radio from the lower-power mode to the higher-power mode. Moreover, the main radio provides an acknowledgment associated with the recipient electronic device that indicates that the recipient electronic device received the wake-up frame.

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：US10091725B2

公开(公告)日：2018-10-02

申请号：US15055801

申请日：2016-02-29

Applicant: Apple Inc.

Inventor： Chiu Ngok E. Wong ,  Christiaan A. Hartman ,  Guoqing Li ,  Jarkko Lauri Sakari Kneckt ,  Joonsuk Kim

IPC: H04W52/02 ,  H04W8/18 ,  H04L29/06 ,  H04W84/12 ,  H04W4/50

Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.

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.

公开(公告)号：US20160360526A1

公开(公告)日：2016-12-08

申请号：US15001116

申请日：2016-01-19

Applicant: Apple Inc.

Inventor： Siegfried Lehmann ,  Christiaan A. Hartman ,  Camille Chen ,  Sriram Hariharan ,  Jianxiong Shi ,  Syed Aon Mujtaba ,  Alessio Centazzo ,  Donald Eng ,  Michael J. Giles ,  Craig P. Dooley ,  Akshay Mangalam Srivatsa ,  Anjali S. Sandesara ,  Langford M. Wasada

IPC: H04W72/04 ,  H04L29/06 ,  H04W4/00

CPC classification number: H04L65/4076 ,  G06F1/3209 ,  G06F1/3278 ,  G06F3/0227 ,  H04W4/80 ,  H04W28/06 ,  Y02D10/157

Abstract: An interface circuit in a computing device may communicate with user-interface devices using shared slots during time intervals. In particular, the computing device may transmit outgoing messages to the user-interface devices at a first predefined time during sequential time intervals when the user-interface devices transition from a sleep mode to a normal mode. In response, the computing device may receive incoming messages from one or more of the user-interface devices at a second predefined time following the first predefined time during the sequential time intervals. Then, the computing device may transmit a multicast message to the user-interface devices at a third predefined time during the sequential time intervals. In response to the given multicast message, one of the user-interface devices may communicate data to the computing device. Note that, in some instances, a multicast time slot may instead be used to communicate data to one of the user-interface devices.

Abstract translation: 计算设备中的接口电路可以在时间间隔期间使用共享时隙与用户接口设备进行通信。 具体地，当用户界面设备从睡眠模式转换到正常模式时，计算设备可以在连续时间间隔期间的第一预定义时间将输出消息发送到用户界面设备。 作为响应，计算设备可以在连续时间间隔内的第一预定时间之后的第二预定时间从一个或多个用户界面设备接收传入消息。 然后，计算设备可以在连续时间间隔期间的第三预定时间向用户接口设备发送组播消息。 响应于给定的多播消息，用户接口设备之一可以将数据传送到计算设备。 注意，在某些情况下，可以替代地使用多播时隙将数据传送到用户界面设备之一。