公开(公告)号：US10264602B2

公开(公告)日：2019-04-16

申请号：US15099055

申请日：2016-04-14

Applicant: Apple Inc.

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

IPC: H04L5/00 ,  H04W74/00 ,  H04W74/08

Abstract: Embodiments include a method, computer program product, and system for grouping electronic devices into contention groups to reduce uplink Orthogonal Frequency-Division Multiple Access (OFDMA) random access (OFDMA-RA) collisions. An access point may explicitly assign an electronic device to a contention group, or the electronic device may implicitly determine an assignment to the contention group. To explicitly assign a device to a contention group, the access point may randomly assign or assign based on a criteria of the electronic device. Examples of criteria include an association identifier (AID), a traffic type/quality of service (QoS) category, a power saving preference, and an association status. The electronic device may implicitly determine a contention group assignment based on the total number of contention groups. The electronic device may use the explicitly or implicitly assigned contention group number to determine whether the electronic device may contend for a given trigger frame random access (TF-R) frame.

公开(公告)号：US20190075609A1

公开(公告)日：2019-03-07

申请号：US16110557

申请日：2018-08-23

Applicant: Apple Inc.

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

IPC: H04W76/14 ,  H04W48/12

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W48/12 ,  H04W84/12

Abstract: One or more wireless stations may operate to configure direct communication with neighboring mobile stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. A mechanism for a wireless station to transmit a paging beacon outside of a paging window may include establishing a paged data link with a peer station, determining that one or more data frames associated with the paged data link are pending transmission, and transmitting a beacon to the peer station outside of a scheduled paging window of the paged data link. The beacon may include a paging attribute indicating there are pending data frames.

公开(公告)号：US20190075521A1

公开(公告)日：2019-03-07

申请号：US16113550

申请日：2018-08-27

Applicant: Apple Inc.

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

IPC: H04W52/02

Abstract: An interface circuit in an electronic device (such as an access point) may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies one or more proposed data criteria or wake-up criteria that indicate when a wake-up frame is to be transmitted to the recipient electronic device. In response, the electronic device may determine one or more data criteria (or wake-up criteria) for use based at least in part on the one or more proposed data criteria. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response indicates acceptance of the one or more proposed data criteria for use as the one or more data criteria or a proposed modification of at least one of the one or more proposed data criteria.

公开(公告)号：US20190014610A1

公开(公告)日：2019-01-10

申请号：US16130342

申请日：2018-09-13

Applicant: Apple Inc.

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

IPC: H04W76/14 ,  H04L29/08 ,  H04W72/12 ,  H04W8/00

CPC classification number: H04W76/14 ,  H04L67/104 ,  H04L67/325 ,  H04W8/005 ,  H04W72/12

Abstract: In one set of embodiments, one or more client stations operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring client stations, i.e., direct communication between the client 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. Aspects of the datapath development include datapath scheduling, including datapath setup and scheduling attributes, as well as pre-datapath operation triggering and scheduling. Scheduling may include determination of a type of datapath, including paging and synchronized datapaths. NAN data cluster base schedules may be scheduled as equal-sets or subsets of datapath schedules. The datapath model may be implemented for unicast and multicast communication between client stations.

公开(公告)号：US20180302854A1

公开(公告)日：2018-10-18

申请号：US16012969

申请日：2018-06-20

Applicant: APPLE INC.

Inventor： Harish Ramamurthy ,  Joonsuk Kim ,  Yong Liu ,  Christopher Hansen

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08

Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.

公开(公告)号：US10085294B2

公开(公告)日：2018-09-25

申请号：US14921481

申请日：2015-10-23

Applicant: APPLE INC.

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

IPC: H04W4/02 ,  H04W76/10 ,  H04W88/04 ,  H04W88/06 ,  H04W88/18

CPC classification number: H04W76/10 ,  H04W4/025 ,  H04W88/04 ,  H04W88/06 ,  H04W88/182

Abstract: A client device and a host device may create a local connection for providing wide area network access, such as Internet access, to the client device. In some embodiments, the client device may have limited network capabilities and may not be able to access the Internet without the host device. The client device may provide its speed and direction in a message to potential host devices. A host device may calculate a suitability metric, based on the speed and direction of the client as well as connection properties of the networks, which indicates an ability for the host device to connect the client device to the Internet. The host device may provide the suitability metric within a connection request to the client device. Based on the suitability metric and/or other factors, the client device and the host device may establish the local connection.

公开(公告)号：US10021650B2

公开(公告)日：2018-07-10

申请号：US15418854

申请日：2017-01-30

Applicant: Apple Inc.

Inventor： Chiu Ngok E. Wong ,  Christiaan A. Hartman ,  Joonsuk Kim ,  Syed Aon Mujtaba ,  Yong Liu ,  Su Khiong Yong

IPC: H04W52/02 ,  H04W40/00 ,  H04W40/24 ,  H04L12/931 ,  H04L29/06 ,  H04W84/12 ,  H04L29/08 ,  H04L1/00

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：US10003642B2

公开(公告)日：2018-06-19

申请号：US14293407

申请日：2014-06-02

Applicant: Apple Inc.

Inventor： Pierre B. Vandwalle ,  Christiaan A. Hartman ,  Yong Liu

IPC: H04L29/08 ,  H04W48/10 ,  H04W48/18

CPC classification number: H04L67/1051 ,  H04L67/1059 ,  H04L67/1068 ,  H04W48/10 ,  H04W48/18 ,  H04W56/0015 ,  H04W56/002

Abstract: A system, apparatus, and method are provided for operating a peer-to-peer communication environment. The environment includes one or more clusters of peer devices, wherein devices in a single cluster are organized into a logical hierarchy under an anchor master (at the root of the hierarchy) and any number of synchronization masters; other devices are non-master devices. Synchronization parameters established by the anchor master and disseminated throughout the hierarchy enable the clusters' devices to rendezvous, discover peers and services, and communicate among themselves. The anchor master may adjust the synchronization parameters to avoid conflict with another hierarchy. Each device issues beacons (e.g., heartbeats, discovery beacons) that identify the number of devices synchronized with the reporting device, which allows the anchor master to calculate the total number of cluster members. Devices may also report details of a neighboring cluster (e.g., its synchronization parameters) via a beacon or some other communication.

公开(公告)号：US09949063B2

公开(公告)日：2018-04-17

申请号：US15167096

申请日：2016-05-27

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04L29/08 ,  H04W76/02 ,  H04W48/16 ,  H04W8/00 ,  H04W88/06

CPC classification number: H04W4/80 ,  H04L67/16 ,  H04W8/005 ,  H04W48/16 ,  H04W76/10 ,  H04W88/06

Abstract: In some embodiments, one or more wireless stations operate according to Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to triggering a NAN datapath using Bluetooth low energy (BLE) signaling. The NAN datapath embodiments described herein provide a mechanism through which devices can communicate to establish a Wi-Fi connection via non-Wi-Fi signaling and provide services. Aspects of the datapath development include Wi-Fi connection establishment and datapath initiation. The datapath model may be implemented for unicast and/or multicast communication between wireless stations, including mobile stations.

公开(公告)号：US09848332B2

公开(公告)日：2017-12-19

申请号：US14947782

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 ,  H04W12/08 ,  H04W12/04 ,  H04L29/06 ,  H04W84/12

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.