公开(公告)号：US10306476B2

公开(公告)日：2019-05-28

申请号：US15498358

申请日：2017-04-26

Applicant: Apple Inc.

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

IPC: H04L29/06 ,  H04L5/14 ,  H04L12/24 ,  H04W16/02 ,  H04W52/36 ,  H04W74/00 ,  H04W84/12 ,  H04W88/08 ,  H04L12/931

Abstract: An interface circuit in an electronic device may receive, from an access point associated with the electronic device, a frame with management information that enables the electronic device to use a spatial-reuse technique, where the electronic device, through the spatial-reuse technique, adjusts a transmit power and a channel-availability sensing threshold. Moreover, the management information may specify parameters for the spatial-reuse technique. Then, the electronic device may transmit, using the spatial-reuse technique, one or more frames to the access point based on the parameters. Furthermore, the electronic device may transmit, to the access point, feedback information that indicates communication performance during the communication between the electronic device and the access point. For example, the feedback information may include a retry rate and, more generally, communication-performance information. This feedback information may be used by the access point to modify the parameters.

公开(公告)号：US10285040B2

公开(公告)日：2019-05-07

申请号：US15605011

申请日：2017-05-25

Applicant: Apple Inc.

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

IPC: H04W8/00 ,  H04W4/08 ,  H04W76/10 ,  H04W4/80 ,  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 accelerated service discovery between peer devices. In some embodiments, a wireless device may broadcast a probe beacon on one or more discovery channels. The wireless device may then scan the discovery channels for an extended period of time. The wireless device may receive a response from a peer device and transmit further service information to the peer device in an availability window indicated in the response.

公开(公告)号：US10277424B2

公开(公告)日：2019-04-30

申请号：US15279260

申请日：2016-09-28

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Joonsuk Kim ,  Yong Liu ,  Christiaan A. Hartman ,  Su Khiong Yong

IPC: H04L25/02 ,  H04L5/00 ,  H04W84/12

Abstract: Time, frequency and waveform division multiplex schemes are used to efficiently estimate multiple uplink channels in a Wireless Local Area Network (WLAN). Orthogonal Frequency Division Multiple Access (OFDMA) and multi-user Multiple Input Multiple Output (MU-MIMO) approaches provide efficient uplink data transmission. An Access Point (AP) communicates with multiple Stations (STAs) in the WLAN. In some approaches, two or more STAs are addressed and the two or more STAs respond at the same time. The AP receives a composite signal and separates the responses to estimate the uplink channel from each STA. After the AP learns the uplink channels, the AP triggers data transmission from one or more of the WLAN STAs by sending a synchronizing trigger message. In some embodiments, the STAs respond simultaneously with data transmissions to the AP.

公开(公告)号：US20190097952A1

公开(公告)日：2019-03-28

申请号：US15981140

申请日：2018-05-16

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Yigal Eliaspur ,  Yong Liu ,  Koby Vainapel

IPC: H04L12/861 ,  H04L12/825 ,  H04L12/851 ,  H04W28/18

Abstract: A wireless device can perform Out-of-Order packet processing and block acknowledgement. Multiple packets may be received at a lower layer of the wireless device. Identifying information may be determined for the received packets. It may be determined that the packets were received out of sequential order, based at least in part on the identifying information. Despite being received out of sequential order, payload information from the packets may be provided to a higher layer of the wireless device in a non-sequential order, such as the order of receipt.

公开(公告)号：US10212574B2

公开(公告)日：2019-02-19

申请号：US15074848

申请日：2016-03-18

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W8/00 ,  H04W84/12 ,  H04W92/18 ,  H04W28/18

Abstract: In some embodiments, one or more wireless stations operate to configure Neighbor Awareness Networking (NAN)—direct communication between neighboring wireless stations, e.g., without utilizing an intermediate access point. Embodiments of the disclosure relate to NAN datapath configuration. 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, scheduler rank management, and further NAN discovery. The datapath model may be implemented for unicast and multicast communication between wireless stations.

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：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：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).