公开(公告)号：US11304133B2

公开(公告)日：2022-04-12

申请号：US16850110

申请日：2020-04-16

申请人： Apple Inc.

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

IPC分类号： H04W76/10 ,  H04W52/02 ,  H04W84/12

摘要： 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：US11035884B2

公开(公告)日：2021-06-15

申请号：US16723226

申请日：2019-12-20

申请人： Apple Inc.

发明人： Guoqing Li ,  Jarkko L. Kneckt ,  Yong Liu ,  Christiaan A. Hartman ,  Welly Kasten

IPC分类号： G01R1/067 ,  H04L29/06 ,  H04W88/08

摘要： Methods, systems, and apparatus are presented for performing network probing. A user equipment device (UE) may store a record associating traditional service set identifiers (SSIDs) with corresponding Short SSIDs. According to some embodiments, the UE may receive a message including a Short SSID, and determine whether a corresponding full SSID is known to the UE. Based on the determination, a probe request may be generated, addressed to either the Short SSID or the full SSID. After transmitting the probe request, the UE may receive a probe response, which may include a full SSID corresponding to the Short SSID. The UE may store a record associating the full SSID with the Short SSID, if applicable. According to some embodiments, a UE may receive a plurality of messages including respective SSIDs, and may generate a single probe request addressed to the SSIDs. The UE may receive a plurality of probe responses.

公开(公告)号：US11032757B2

公开(公告)日：2021-06-08

申请号：US16798835

申请日：2020-02-24

申请人： Apple Inc.

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

IPC分类号： H04W48/14 ,  H04B17/318 ,  H04W8/00 ,  H04W4/80 ,  H04B7/00 ,  H04W4/00 ,  H04W24/00 ,  H04W68/00 ,  H04W84/12

摘要： 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.

公开(公告)号：US20210014679A1

公开(公告)日：2021-01-14

申请号：US16887952

申请日：2020-05-29

申请人： Apple Inc.

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

IPC分类号： H04W12/02 ,  H04W12/00

摘要： Disclosed herein are system, method, and computer program product embodiments for identity obscuration of a station (STA) connected to a wireless network to prevent the tracking of the STA. Embodiments include a STA configured to establish a security association with an access point (AP) based on an original long term identity for the station and an identity of the AP. The STA can transmit a new long term identity for the STA to the AP based on the security association. The STA can then transmit a request frame to change the original short term identity assigned to the STA to the AP. The STA can receive a response frame from the AP. The response frame can include a new short term identity assigned to the station by the AP. The STA can then map its new long term identity to its new short term identity assigned by the AP.

公开(公告)号：US10893083B2

公开(公告)日：2021-01-12

申请号：US15164067

申请日：2016-05-25

申请人： Apple Inc.

发明人： 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分类号： H04L29/06 ,  H04W8/00 ,  H04W72/12 ,  H04W76/14 ,  H04W88/04

摘要： 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 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 attributes may include a native scheduler rank and a NAN data cluster scheduler rank. 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, including mobile stations.

公开(公告)号：US10863546B2

公开(公告)日：2020-12-08

申请号：US16010333

申请日：2018-06-15

申请人： Apple Inc.

发明人： Yoel Boger ,  Yaniv Dvory ,  Jarkko L. Kneckt ,  Guoqing Li ,  Christiaan A. Hartman

IPC分类号： H04W74/08

摘要： Some embodiments enable improved aggregated throughput and average latency in a wireless communication channel. Wireless electronic devices may implement adaptive contention window (ACW) channel access that improves channel capacity and enables latency sensitive applications (e.g., video streaming), especially when all wireless electronic devices operating on the channel as well as those in proximity utilize ACW channel access. Some embodiments detect when wireless stations on the communication channel as well as wireless stations in proximity are utilizing ACW channel access to obtain a transmit opportunity (TXOP). Based on the detection, an access point (AP) can instruct an associated wireless station to: use ACW channel access to obtain a TXOP, use a different channel access method obtain a TXOP as needed, disassociate and associate with a different AP, or use a different channel access method to obtain a TXOP.

公开(公告)号：US10785718B2

公开(公告)日：2020-09-22

申请号：US15615218

申请日：2017-06-06

申请人： Apple Inc.

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

IPC分类号： H04W52/02

摘要： An access point establishes target wakeup times (TWTs) with one or more associated electronic devices in a WLAN. The access point transitions to a power-saving mode outside of the one or more TWTs. The access point maintains synchronization with the one or more electronic devices, during at least a first TWT in the one or more TWTs, by transmitting, to the one or more electronic devices, a TWT beacon that includes, or in conjunction with, synchronization information. Alternatively or additionally, during at least the first TWT, the access point transmits a multi-user trigger frame that includes the synchronization information to the one or more electronic devices. In response to the multi-user trigger frame, the access point receives data frames from the one or more electronic devices, transmits one or more acknowledgments, and transitions into the power-saving mode during a remainder of at least the first TWT.

公开(公告)号：US10742368B2

公开(公告)日：2020-08-11

申请号：US16378718

申请日：2019-04-09

申请人： Apple Inc.

发明人： Joonsuk Kim ,  Guoqing Li

IPC分类号： H04L5/00 ,  H04L1/00 ,  H04W28/20 ,  H04W4/08 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08 ,  H04W80/00 ,  H04W84/12

摘要： A wireless access point transmits a protocol data unit (PDU) that includes data and signaling for a plurality of user devices. The PDU spans a channel in frequency and an interval in time, and includes a first signaling section, a second signaling section and a traffic action. For each of a plurality of subchannels of the channel: the first signaling section includes (within the subchannel) a corresponding redundant copy of common signaling information for the user devices associated with the access point; the second signaling section includes (within the subchannel) a corresponding set of user-specific signaling information for a corresponding group of one or more of the user devices; and the traffic section includes (within the subchannel) a corresponding set of traffic data for the corresponding group of one or more user devices. Subchannels sizes may be configurable. A signaling set CRC may be included per subchannel.

公开(公告)号：US10715288B2

公开(公告)日：2020-07-14

申请号：US15590960

申请日：2017-05-09

申请人： Apple Inc.

发明人： Oren Shani ,  Guoqing Li ,  Joonsuk Kim ,  Ashok Ranganath

IPC分类号： H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04B7/06 ,  H04W84/12

摘要： An access point (AP) in a wireless local area network (WLAN) uses a protocol to determine frequency/time resource allocations of resource units (RUs) in parallel with data transfer to and from WLAN stations (STAs). The AP generates a sounding table associating STAs with RUs for uplink (UL) and downlink (DL). The AP processes the sounding table to create a channel map table and then the AP allocates particular RUs to particular STAs. The STAs then receive and transmit data from and to the AP over the allocated RUs. This approach achieves good throughput while reducing the use of signaling and pilot overhead associated with channel sounding. To avoid interruption of ongoing transmissions, a newly arriving STA is grouped and sounded with other STAs. The protocol includes a joint sounding and data epoch followed by a determination of the channel map table.

公开(公告)号：US20200053729A1

公开(公告)日：2020-02-13

申请号：US16532995

申请日：2019-08-06

申请人： Apple Inc.

发明人： Daniel R. Borges ,  Oren Shani ,  Christiaan A. Hartman ,  Yong Liu ,  Charles F. Dominguez ,  Karthik R. Mekala ,  Tashbeeb Haque ,  Lawrie Kurian ,  Mete Fikirlier ,  Guoqing Li ,  Rajneesh Kumar ,  Ka Ho P. Poon ,  Brian B. Whitaker ,  Joseph Hakim ,  John A. Wilson ,  Tony Chi Wang Ng ,  Roopkumar Parthasarathy Rao ,  Curtis J. Schmidek ,  Shishir Gupta ,  Tushar R. Shah ,  Jacob H. Power ,  Bryan J. Follis ,  Anand Rajagopalan

IPC分类号： H04W72/04 ,  H04W72/12

摘要： An interface circuit in an electronic device may contend for access to a shared communication channel on behalf of the electronic device and a recipient electronic device, where the access has a duration. Then, the electronic device may provide a schedule frame intended for the recipient electronic device that includes information that specifies one or more time slots during the duration that are associated with the recipient electronic device and one or more communication functions of the recipient electronic device in the one or more time slots. Moreover, the electronic device may provide a data frame with data intended for the recipient electronic device. In response, the electronic device may receive a response frame associated with the recipient electronic device, where the response frame is received during at least one of the one or more time slots.