公开(公告)号：US20220132301A1

公开(公告)日：2022-04-28

申请号：US17571304

申请日：2022-01-07

Applicant: Apple Inc.

Inventor： Chiu Ngok E. Wong ,  Christiaan A. Hartman ,  Zheng Zeng ,  Joonsuk Kim ,  Su Khiong Yong ,  Yong Liu

IPC: H04W8/18 ,  H04W52/02 ,  H04L69/22 ,  H04W84/12

Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.

公开(公告)号：US11317405B2

公开(公告)日：2022-04-26

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 ,  H04W84/12 ,  H04W8/00

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：US20210211836A1

公开(公告)日：2021-07-08

申请号：US17205840

申请日：2021-03-18

Applicant: Apple Inc.

Inventor： Srinivas Burugupalli ,  Qi Wang ,  Oren Shani ,  Christiaan A. Hartman ,  Danlin Li ,  Aniruddha S. Diwan

IPC: H04W4/02 ,  G01S13/76

Abstract: This disclosure relates to techniques for performing ranging wireless communication including prioritization. A first wireless device may transmit a request for ranging services to a second wireless device. The first wireless device may transmit an indication of a ranging priority to the second wireless device. The second wireless device may determine a granted ranging priority. The first and second wireless device may perform ranging communication according to the granted ranging priority.

公开(公告)号：US11057829B2

公开(公告)日：2021-07-06

申请号：US16550508

申请日：2019-08-26

Applicant: Apple Inc.

Inventor： Qi Wang ,  Christiaan A. Hartman ,  Oren Shani ,  Rafi Vitory ,  Roy Beeri ,  Yoav Feinmesser

IPC: H04W52/02 ,  H04W64/00 ,  H04W84/12

Abstract: Methods for performing a ranging procedure according to the non-trigger-based protocol may include negotiating timing parameters associated with the ranging procedure, performing a ranging measurement, and transmitting/receiving, after completion of the ranging measurement, a message announcing initiation of another ranging measurement. The timing parameters may indicate a time window in which an initiating device can initiate a subsequent ranging measurement and the message announcing initiation of the second ranging measurement may be received during the time range specified. Timing parameters may indicate a responding device's required minimum and maximum time between ranging measurements. Additional parameters may indicate an initiating device's required minimum and maximum time between ranging measurements. A power savings mode may be entered after the first ranging measurement and during at least a portion of a time period specified by the parameters.

公开(公告)号：US10999798B2

公开(公告)日：2021-05-04

申请号：US16013697

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Yong Liu ,  Oren Shani ,  Christiaan A. Hartman ,  Xiaowen Wang ,  Christian W. Mucke ,  Tushar R. Shah ,  Jarkko L. Kneckt ,  Matthew L. Semersky ,  Yoel Boger ,  Josef Peery ,  Rajneesh Kumar

IPC: H04W52/02 ,  H04W84/12

Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up beacon to a recipient electronic device. During operation, the interface circuit may provide a wake-up beacon associated with a predefined sub-channel in one or more channels in a band of frequencies, where the wake-up beacon is for a wake-up radio in the recipient electronic device. Moreover, the wake-up beacon may be provided within an associated time interval, such as a keep-alive interval of the electronic device. In some embodiments, the wake-up beacon includes a field with channel information that specifies one or more second channels used by a main radio in the recipient electronic device. Alternatively or additionally, the wake-up beacon may include a field with service information that specifies one or more types of services and/or a field with information specifying a transmit power of the interface circuit.

公开(公告)号：US10986571B2

公开(公告)日：2021-04-20

申请号：US16135378

申请日：2018-09-19

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：US20210014784A1

公开(公告)日：2021-01-14

申请号：US16850110

申请日：2020-04-16

Applicant: Apple Inc.

Inventor： Jarkko L. Kneckt ,  Christiaan A. Hartman ,  Guoqing Li ,  Jinjing Jiang ,  Qi Wang ,  Su Khiong Yong ,  Tianyu Wu ,  Yong Liu

IPC: H04W52/02 ,  H04W76/10

Abstract: This disclosure relates to methods for conducting multilink communications between a user equipment device (UE) and a wireless access point (AP) over a wireless local area network (WLAN). The UE establishes a connection with an access point through a WLAN, wherein the connection utilizes a plurality of links. The UE transmits an indication to the access point through a first link of the plurality of links, where the indication specifies one or more available links of the plurality of links that are available for the UE to receive downlink (DL) communications from the access point. The UE receives one or more DL communications from the access point through at least one of the one or more available links.

公开(公告)号：US10609543B2

公开(公告)日：2020-03-31

申请号：US15386156

申请日：2016-12-21

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Anjali S. Sandesara ,  Lawrie Kurian ,  Peter N. Heerboth ,  Guoqing Li ,  Siegfried Lehmann ,  Akshay Mangalam Srivatsa ,  Yong Liu ,  Michael Jason Giles

IPC: H04W8/00 ,  H04W76/14 ,  H04W4/80 ,  H04W84/12

Abstract: In some embodiments, one or more wireless stations operate to configure 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 a mechanism for a device to transmit, via a BTLE (or Bluetooth) interface, a first message indicating an operation associated with a Wi-Fi service (e.g., a service available via a Wi-Fi interface and/or Wi-Fi related interface parameters) to a peer device. The first message may include a service hash that indicates the operation. The service hash may be included in a first data structure. The first data structure may indicate availability of the Wi-Fi service. The device may receive a second message from the peer device indicating that the neighboring wireless station intends to subscribe to or provide the Wi-Fi service, e.g., via Wi-Fi peer-to-peer communications.

公开(公告)号：US10567186B2

公开(公告)日：2020-02-18

申请号：US15137870

申请日：2016-04-25

Applicant: Apple Inc.

Inventor： Guoqing Li ,  Joonsuk Kim ,  Chiu Ngok E. Wong ,  Yong Liu ,  Su Khiong Yong ,  Christiaan A. Hartman ,  Syed Aon Mujtaba ,  Ye Sun ,  Shu Du ,  Wen Zhao

IPC: H04W4/06 ,  H04L12/18 ,  H04B7/0452 ,  H04W84/12

Abstract: A method for receiving feedback on a quality of multicast transmissions in a Wireless Local Access Network (WLAN) including a source electronic device (e.g., an access point) and a plurality of electronic devices is disclosed, according to some embodiments. The method can include (i) transmitting a plurality of multicast packets addressed to a subset of the plurality of electronic devices by the source electronic device; (ii) concurrently polling the subset of the plurality of electronic devices by the source electronic device; and (iii) receiving a plurality of block acknowledgements (BAs) from at least the subset of the plurality of electronic devices by the source electronic device. Each BA may include information on a quality of reception of two or more multicast packets received at an electronic device.

公开(公告)号：US10524286B2

公开(公告)日：2019-12-31

申请号：US15605158

申请日：2017-05-25

Applicant: Apple Inc.

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

IPC: H04W74/00 ,  H04W74/08 ,  H04L29/06 ,  H04W52/02 ,  H04W84/12

Abstract: An electronic device that transmits a frame to a second electronic device is described. In particular, during operation, an interface circuit in the electronic device (such as an access point in a WLAN) may transmit the frame to the second electronic device using a Wi-Fi communication protocol. The frame may include information cancelling a previously specified NAV protected time in a preamble of the frame. For example, the information may include a CF-End indication. Moreover, the information may be included in a MAC header of the frame and, more generally, in a preamble of a high efficiency (HE) physical layer convergence protocol (PLCP) protocol data unit (PPDU). Furthermore, the electronic device may transmit the frame in response to a block acknowledgment (BA) from the second electronic device.