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：US20200029198A1

公开(公告)日：2020-01-23

申请号：US16587332

申请日：2019-09-30

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

IPC: H04W8/00 ,  H04W4/06 ,  H04L12/18 ,  H04W76/14 ,  H04W4/80 ,  H04W4/08

Abstract: One or more wireless stations operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, i.e., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to reciprocating service between two or more wireless stations. The reciprocating service embodiments described herein provide a mechanism through which devices can participate in a same service instant.

公开(公告)号：US20190289603A1

公开(公告)日：2019-09-19

申请号：US16433198

申请日：2019-06-06

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Yong Liu ,  Lawrie Kurian ,  Peter N. Heerboth ,  Guoqing Li ,  Daniel R. Borges ,  Chiu Ngok E. Wong ,  Saravanan Balasubramaniyan ,  Tashbeeb Haque ,  Anand Rajagopalan

IPC: H04W72/04 ,  H04W72/12 ,  H04W76/14

Abstract: One or more wireless stations may operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., without utilizing an intermediate access point. Scheduling of NAN ranging procedures may include a first wireless station sending first information, including first scheduling preferences and a first ranging role, to a second wireless station. The first wireless station receives second information, including second scheduling preferences and a second ranging role, from the second wireless station. The first wireless station may initiate the ranging procedure based on the scheduling preferences and ranging parameters. Alternatively, the second wireless station and may initiate the ranging procedure based on the scheduling preferences and ranging parameters.

公开(公告)号：US10375179B2

公开(公告)日：2019-08-06

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: H04W4/50 ,  G06Q30/02 ,  H04L29/08 ,  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：US20190239250A1

公开(公告)日：2019-08-01

申请号：US16383155

申请日：2019-04-12

Applicant: Apple Inc.

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

IPC: H04W74/00 ,  H04W74/08

CPC classification number: H04W74/006 ,  H04L5/0007 ,  H04W74/0833 ,  H04W74/085 ,  Y02D70/00 ,  Y02D70/142

Abstract: Some embodiments are directed to 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：US20190200295A1

公开(公告)日：2019-06-27

申请号：US16113659

申请日：2018-08-27

Applicant: Apple Inc.

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

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04W52/0219 ,  H04W52/0222 ,  H04W52/0235 ,  H04W84/12

Abstract: An interface circuit in an electronic device (such as an access point) may receive a setup request associated with the recipient electronic device. The setup request may specify a group address for which the recipient electronic device wants to receive associated frames and a proposed transmission interval. Based at least in part on the proposed transmission interval, the electronic device may determine a transmission schedule and/or may assign, based at least in part on the group address, the recipient electronic device to an aggregated group having a flexible multicast service identifier (FMSID). Then, the electronic device may provide a wake-up frame for the recipient electronic device, where the wake-up frame includes an identifier of the aggregated group for which a group-addressed frame will subsequently be transmitted by the electronic device. Moreover, the wake-up frame may be provided at a transmission time based at least in part on the transmission schedule.

公开(公告)号：US10313226B2

公开(公告)日：2019-06-04

申请号：US15256013

申请日：2016-09-02

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Yong Liu ,  Joonsuk Kim ,  Christiaan A. Hartman ,  Su Khiong Yong ,  Syed A. Mujtaba ,  Matthew L. Semersky

IPC: H04L12/18 ,  H04W76/40 ,  H04L12/761 ,  H04L29/12 ,  H04W4/06

Abstract: Disclosed herein are system, method, and computer program product embodiments for selectively decoding a multicast subframe in a multi-user frame for a wireless communications protocol. Embodiments include transmitting a request frame including a multicast group address for a multicast group to an access point (AP). The AP can determine a multicast identifier for the multicast group based on the multicast group address in the request frame. The AP can also transmit a response frame including the determined multicast identifier to a station (STA). The STA can receive a multi-user frame containing a multicast subframe from the AP. The STA can determine whether the multicast subframe is destined for the STA based on the determined multicast identifier and a multicast identifier stored in a preamble of the multi-user frame. The STA can determine whether to decode the multicast subframe based on the determination of whether the multicast subframe is destined for the STA.

公开(公告)号：US10306640B2

公开(公告)日：2019-05-28

申请号：US15783784

申请日：2017-10-13

Applicant: Apple Inc.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W84/12

Abstract: A basic bandwidth wireless local area network (WLAN) device or station (STA) is assigned to a secondary channel. The basic bandwidth STA may be a 20 MHz STA. On the secondary channel, the basic bandwidth STA operates in a wideband mode recovering received data transmitted from an access point (AP) as part of a high bandwidth physical layer protocol data unit (PPDU). The STA and the AP can be members of a basic service set (BSS). The high bandwidth PPDU may be, for example, a 40 MHz, 60 MHz, or 80 MHz PPDU. Once on the secondary channel, the STA relies on the AP to perform channel sensing and scheduling activities, thus reducing power consumption at the STA and increasing the efficiency of the BSS. Several signaling formats are provided for indicating the secondary channel that the STA is assigned to or requests to move to.

公开(公告)号：US10285200B2

公开(公告)日：2019-05-07

申请号：US15403092

申请日：2017-01-10

Applicant: Apple Inc.

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

IPC: H04W74/02 ,  H04W84/12 ,  H04W74/00

Abstract: An access point selects a channel access policy for an electronic device in a wireless local area network (WLAN). During operation, an interface circuit of the access point receives a channel access preference from the electronic device. The channel access preference includes: a multi-user trigger-based channel access technique, a single-user contention-based channel access technique, or both. The interface circuit selects the channel access policy for the electronic device based, at least in part, on the received channel access preference. The channel access policy can also be selected based at least in part on a communication performance metric associated with communication in the WLAN. The interface circuit communicates the selected channel access policy to the electronic device, which subsequently accesses a communication channel and communicates packets with the access point in accordance with the channel access policy.

公开(公告)号：US10165464B2

公开(公告)日：2018-12-25

申请号：US15271502

申请日：2016-09-21

Applicant: Apple Inc.

Inventor： Yong Liu ,  Christiaan A. Hartman ,  Daniel R. Borges ,  Guoqing Li ,  Lawrie Kurian ,  Nathan A. Kralian ,  Peter N. Heerboth ,  Su Khiong Yong

IPC: H04W28/02 ,  H04W8/00 ,  H04L29/08 ,  H04L12/28

Abstract: In embodiments, one or more wireless stations operate to configure direct communication with neighboring mobile stations, i.e., direct communication between the mobile 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 provide a mechanism for NAN datapaths to support various levels of quality of service (QoS). 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 wireless stations.