公开(公告)号：US10172146B2

公开(公告)日：2019-01-01

申请号：US15272519

申请日：2016-09-22

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Siegfried Lehmann

IPC: H04W72/12 ,  H04W72/04 ,  H04W84/12 ,  H04W4/80

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 a mechanism for coexistence of various radio access technologies during peer-to-peer communications. In some embodiments, a first communication may be scheduled in one or more time slots with a peer station according to a first radio access technology (RAT), an end time of the first communication during a first time slot of the one or more time slots may be determined, and a second communication according to a second RAT may be transmitted. At least a portion of the second communication may be performed during the first time slot. In some embodiments, the first and second communications may be transmitted on the same channel.

公开(公告)号：US20180332547A1

公开(公告)日：2018-11-15

申请号：US15969712

申请日：2018-05-02

Applicant: Apple Inc.

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

IPC: H04W56/00 ,  H04L29/08 ,  H04W68/00 ,  H04W8/00

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 a device to request synchronization assistance from one or more neighboring peer devices.

公开(公告)号：US10129826B2

公开(公告)日：2018-11-13

申请号：US15142212

申请日：2016-04-29

Applicant: Apple Inc.

Inventor： Chiu Ngok E. Wong ,  Syed A. Mujtaba ,  Christiaan A. Hartman ,  Joonsuk Kim

IPC: H04W52/02 ,  H04L5/00 ,  H04W28/14 ,  H04W40/00 ,  H04W40/24 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: A station (STA) of a wireless local area network (WLAN) transitions implicitly between power management (PM) modes or PM states, without providing an explicit indication of the PM mode/state change to an access point (AP) of the WLAN. Transitions include changes between an active mode and a power save (PS) mode, or between an awake state and a doze state of the PS mode. Transitions occur immediately after receipt of a beacon indicating pending data for the STA, after an offset time indicated in the beacon, or at a specific wake time negotiated with the AP. After data reception is complete, the STA transitions implicitly to the PS mode or a doze state of the PS mode, after a power save inactivity timeout period or after receiving an indication that data transmission is complete.

公开(公告)号：US20180255149A1

公开(公告)日：2018-09-06

申请号：US15851335

申请日：2017-12-21

Applicant: Apple Inc.

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

IPC: H04L29/08 ,  H04W48/16 ,  H04W4/50 ,  H04W12/06

CPC classification number: H04L67/16 ,  G06Q30/0251 ,  H04L67/20 ,  H04L67/2804 ,  H04W4/50 ,  H04W12/06 ,  H04W48/16 ,  H04W84/12

Abstract: In some embodiments, a wireless station may be configured to transmit a request to one or more access points and receive from at least one access point of the one or more access points, a response. The request may be a GAS or probe request and the response may be a GAS or probe response. The request may include an indication of one or more services sought by the wireless station and the response may include information regarding at least one service of the one or more services sought. In addition, the response may be an indication that the at least one access point has determined a match between a provided service and at least one service sought. The wireless station may be further configured to determine, based, at least in part, on the information, to associate with the access point in order to consume the at least one service.

公开(公告)号：US10070273B2

公开(公告)日：2018-09-04

申请号：US14988110

申请日：2016-01-05

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Su Khiong Yong ,  Yong Liu ,  Christiaan A. Hartman ,  Gregory Chapman ,  Eric San Fung Lee ,  Chiu Ngok E. Wong

IPC: H04H20/71 ,  H04W4/08

Abstract: In order to flexibly manage and broadcast content to electronic devices in a multicast group, a multicast group management protocol allows one or more multicast group masters to be specified. In addition to controlling membership in the multicast group, a multicast group master can define or specify a multicast session, in which content from one or more sources is broadcast to at least a subset of the electronic devices or sinks in the multicast group. The multicast group management protocol supports concurrent broadcasts of content to different multicast sessions. Moreover, the broadcasts in the different multicast sessions may have different: priorities, encoding techniques, quality-of-service policies, reliability, and/or number of parity bits. For example, the different encoding techniques may include different layers in H.264 Scalable Video Coding. Alternatively or additionally, the different number of parity bits may be associated with application layer forward error correction.

公开(公告)号：US10034224B2

公开(公告)日：2018-07-24

申请号：US14816908

申请日：2015-08-03

Applicant: Apple Inc.

Inventor： Daniel R. Borges ,  Christiaan A. Hartman ,  Christopher B. Zimmermann ,  Peter N. Heerboth

IPC: H04W48/00 ,  H04W52/02 ,  H04W4/00 ,  H04W4/70 ,  H04W48/16

Abstract: Methods and apparatus for dynamic, adaptive scanning of communication channels are provided. A device alternates between scan cycles and rest cycles. A scan cycle includes interleaved intervals of scanning and resting. A scan interval may involve active or passive scanning, and a rest interval may be active or inactive. An active rest interval is spent tending to a communication requirement other than scanning (e.g., an infrastructure connection, a peer-to-peer connection). An inactive rest interval may be spent in a low-power mode of operation. Rest cycles, like rest intervals, may also be active or inactive. Durations of rest cycles and rest intervals increase each time a scan cycle completes without detection of any significant event or signal (e.g., until they reach a maximum). Upon detection of a significant event, they decrease, possibly by being reset to default durations.

公开(公告)号：US10015151B2

公开(公告)日：2018-07-03

申请号：US14947691

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: H04L29/06 ,  H04L9/32 ,  G06F7/04 ,  H04L9/00 ,  H04K1/00 ,  H04W12/06 ,  H04W12/04 ,  H04W84/12

CPC classification number: H04L63/061 ,  H04L63/18 ,  H04W12/003 ,  H04W12/04 ,  H04W12/06 ,  H04W84/12

Abstract: The disclosed embodiments provide a system that enables service-configurable wireless connections. During operation, a local service endpoint of a service runs on a wireless device. The local service endpoint sends a request to establish a datapath with another service endpoint on another device. Meanwhile, the wireless device's service discovery module discovers a remote endpoint for the service on a remote device. In response to the request, the wireless device's service-configurable security entity configures a Wi-Fi connection's security configuration, thereby enabling the local endpoint to establish a datapath between the local endpoint and the remote endpoint over the Wi-Fi connection.

公开(公告)号：US09998535B2

公开(公告)日：2018-06-12

申请号：US14703557

申请日：2015-05-04

Applicant: Apple Inc.

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

IPC: G06F15/16 ,  H04L29/08 ,  H04W72/04 ,  H04W40/24 ,  H04L12/703 ,  H04L12/715 ,  H04W84/12

CPC classification number: H04L67/1093 ,  H04L29/08072 ,  H04L45/28 ,  H04L45/64 ,  H04L67/104 ,  H04L67/1063 ,  H04L67/1074 ,  H04W40/24 ,  H04W40/244 ,  H04W72/0446 ,  H04W84/12

Abstract: An apparatus and methods are provided for coordinating multiple peer-to-peer (P2P) networks. A device operates a first P2P communications protocol to participate in a first P2P network. The device also operates a second P2P communications protocol to participate in a second P2P network. The device can modify at least one of the first P2P network's parameters and at least one of the second P2P network's parameters to minimize conflicts between operations of the P2P networks. To enable it to modify these parameters, the device may configure or reconfigure its operating parameters to cause it to take on a supervisory role (e.g., master, group owner).

公开(公告)号：US20180063863A1

公开(公告)日：2018-03-01

申请号：US15684750

申请日：2017-08-23

Applicant: Apple Inc.

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

IPC: H04W72/12

CPC classification number: H04W72/1278 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1205 ,  H04W72/1263 ,  H04W76/14 ,  H04W84/12 ,  H04W88/02

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 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. In particular, embodiments described herein relate to techniques for devices (e.g., NAN devices) to propose and confirm schedule updates. The datapath model, and in particular the techniques described herein, may be implemented for unicast and multicast communication between wireless stations.

公开(公告)号：US20180027490A1

公开(公告)日：2018-01-25

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 ,  H04W68/02 ,  G08C17/02 ,  H04W84/04 ,  H04B7/185

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.