公开(公告)号：US11032770B2

公开(公告)日：2021-06-08

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 ,  H04W8/00 ,  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：US11026283B2

公开(公告)日：2021-06-01

申请号：US16122131

申请日：2018-09-05

Applicant: Apple Inc.

Inventor： Ajoy K. Singh ,  Dennis Mathews ,  Paul V. Flynn ,  Wen Zhao ,  Yong Liu ,  Syed Aon Mujtaba ,  Sriram Hariharan ,  Matthew L. Semersky

IPC: H04W4/02 ,  H04W76/10 ,  H04W76/18 ,  H04W4/029 ,  H04W4/18 ,  H04B17/318 ,  H04W52/28 ,  H04W4/80 ,  H04W88/04 ,  H04W64/00

Abstract: A client device can be configured to identify data to be communicated with a network. In some examples, the client device can determine one or more transient properties of the client device and/or receive a connection request from a host device that is connected to the network, where the connection request comprises one or more connection properties of the host device. In some instances, the client device can also be configured to determine whether the host device is capable of transmitting the data to the network based at least in part on the one or more transient properties of the client device and the one or more connection properties of the host device and/or establish a connection with the host device in accordance with determining that the host device is capable of transmitting the data to the network.

公开(公告)号：US11013020B2

公开(公告)日：2021-05-18

申请号：US15644964

申请日：2017-07-10

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W48/12 ,  H04L12/18 ,  H04W48/16 ,  H04W76/10 ,  H04W76/14 ,  H04W84/12 ,  H04W92/18

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 cancelable and non-cancelable further availability windows in conjunction with NAN communication.

公开(公告)号：US10999780B2

公开(公告)日：2021-05-04

申请号：US16190304

申请日：2018-11-14

Applicant: Apple Inc.

Inventor： Bob Bradley ,  Su Khiong Yong ,  Yong Liu

IPC: H04L29/08 ,  H04W8/00 ,  H04W84/12 ,  H04W48/18 ,  H04W88/06 ,  H04W48/08 ,  H04W4/80

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 trigger, via a first interface, service discovery over a second interface. In some embodiments, the service discovery can involve the exchange of one or more Bloom filters.

公开(公告)号：US10924987B2

公开(公告)日：2021-02-16

申请号：US16564259

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Jarkko L. Kneckt ,  Mingguang Xu ,  Mithat C. Dogan ,  Yong Liu

IPC: H04W48/16 ,  H04W64/00 ,  H04L12/26 ,  H04B17/373

Abstract: Methods for performing error recovery during a ranging procedure may include negotiation one or more ranging parameters, including a set of secure training sequences and receipt of a first ranging frame that may include a first dialog token and may have an appended first secure training sequence. The first ranging frame may be decoded based on the first dialog token but not correlated based on the first secure training sequence. A first acknowledgment that may include an appended second secure training sequence may be transmitted. The second secure training sequence may be associated with a prior dialog token. A second ranging frame that may include a second dialog token and may have an appended third secure training sequence may be received. The second ranging frame may be decoded based on the third dialog token and correlated based on the third secure training sequence.

公开(公告)号：US10911190B2

公开(公告)日：2021-02-02

申请号：US16459544

申请日：2019-07-01

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/06 ,  H04L12/801 ,  H04W84/12 ,  H04L27/26

Abstract: During operation, an interface circuit in an electronic device may receive, from a second electronic device (such as an access point in a WLAN), an uplink trigger frame that may specify an access category. In response to the uplink trigger frame, the electronic device may first include data associated with the specified access category in one or more frames, and then may transmit the one or more frames to the second electronic device. Moreover, when all the data associated with the specified access category has been transmitted or when there is no data associated with the specified access category, and when there is leftover time in an allocation associated with the uplink trigger frame, the interface circuit may transmit the one or more frames to the second electronic device with additional data associated with another access category that is different from the specified access category.

公开(公告)号：US20200092703A1

公开(公告)日：2020-03-19

申请号：US16527135

申请日：2019-07-31

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Lawrie Kurian ,  Tashbeeb Haque

IPC: H04W8/00 ,  H04W52/02 ,  H04W76/14 ,  H04W4/20 ,  H04W4/70

Abstract: 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. A wireless station may be configured to perform a method to accelerate discovery of a peer device after an out-of-band triggering event. For example, a wireless device may detect an out-of-band triggering event and activate a wireless interface capable of peer-to-peer communications in response. The wireless device may transmit one or more discovery messages (e.g., discovery beacons, active subscribe messages, and/or unsolicited publish messages) over the wireless interface immediately after activation of the wireless interface to aid in discovery of the peer device. The one or more discovery messages may be transmitted as service discovery frames. The wireless device may perform service discovery over the wireless interface with the peer device post discovery.

公开(公告)号：US10594450B2

公开(公告)日：2020-03-17

申请号：US15432758

申请日：2017-02-14

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04L29/08 ,  H04W72/12 ,  H04W88/02 ,  H04W84/12

Abstract: An electronic device communicates frames with an access point (AP) by receiving, from the AP, a frame header that includes information specifying a first set of tones of an OFDMA communication, the first set of tones associated with first resource block subchannels having a first bandwidth used by the AP to transmit a frame payload. The electronic device obtains a second set of tones associated with second resource block subchannels having a second bandwidth that differs from the first bandwidth, and receives the frame payload using the OFDMA communication, the second resource block subchannels, and the second set of tones. Alternatively, an electronic device dynamically switches a channel-access mode when communicating a frame with the AP depending on whether the communication includes a primary 20 MHz channel. In a technique, an MU-PPDU is communicated using a frame via a non-primary 20 MHz channel without using the primary 20 MHz channel.

公开(公告)号：US10575268B2

公开(公告)日：2020-02-25

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 ,  H04W8/00 ,  H04W68/00 ,  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 a device to request synchronization assistance from one or more neighboring peer devices.

公开(公告)号：US10575242B2

公开(公告)日：2020-02-25

申请号：US15653825

申请日：2017-07-19

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Christiaan A. Hartman ,  Guoqing Li ,  Joonsuk Kim ,  Matthew L. Semersky ,  Oren Shani ,  Syed A. Mujtaba ,  Yong Liu

IPC: H04W48/14 ,  H04B17/318 ,  H04W8/00 ,  H04W4/80 ,  H04B7/00 ,  H04W4/00 ,  H04W24/00 ,  H04W68/00

Abstract: Passive and active scanning for extended range wireless networking. The choice between legacy and extended range signaling can depend on one or more factors. For passive scanning, an electronic device may transmit a combination of legacy beacons and extended range beacons for network discovery by receiving electronic devices. For active scanning, an electronic device may transmit extended range probe requests in addition to legacy probe requests to discover all of the access points within its transmission range. Responses to probe requests can use extended range, legacy, single user, and/or multi user protocols.