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公开(公告)号：US20200217875A1
公开(公告)日：2020-07-09
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
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.
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公开(公告)号：US10681759B2
公开(公告)日：2020-06-09
申请号：US16110557
申请日：2018-08-23
申请人： Apple Inc.
发明人： Yong Liu , Christiaan A. Hartman , Guoqing Li , Lawrie Kurian , Peter N. Heerboth , Su Khiong Yong
摘要： 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.
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公开(公告)号：US10588168B2
公开(公告)日：2020-03-10
申请号：US15926016
申请日：2018-03-20
申请人： Apple Inc.
发明人： Yong Liu , Christiaan A. Hartman , Guoqing Li , Lawrie Kurian , Peter N. Heerboth , Su Khiong Yong
IPC分类号： H04W76/14 , H04W76/27 , H04L12/825 , H04W52/02 , H04W36/00 , H04W8/00 , H04W84/18 , H04W84/12 , H04W88/06
摘要： In some embodiments, one or more wireless stations operate to configure direct communication with one or more 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 wireless station to transmit a pause indication to one or more neighboring peer wireless stations, indicating a pause in direct communication.
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公开(公告)号：US20200059858A1
公开(公告)日：2020-02-20
申请号：US16662848
申请日：2019-10-24
申请人： Apple Inc.
摘要： A dual-radio AP including both a high-power (e.g., Wi-Fi) radio and a low-power (e.g., BLE) radio may support an assisted wakeup service for a power-limited dual-radio mobile device (STA). The power-limited STA may register with the AP for the assisted wakeup service, and may then disable its Wi-Fi radio (or otherwise initiate a lower-power mode). The power-limited STA may receive a BLE communication indicating the AP has pending Wi-Fi transmissions or updates applicable to the power-limited STA. In response, the power-limited STA may turn on its Wi-Fi radio and receive the pending transmissions or updates from the AP. If an AP does not include a low-power radio, then a high-power/low-power dual-radio STA that is not power-limited may serve as an assisted wakeup service proxy. The proxy may scan and trace the Wi-Fi beacons from the AP, and generate the BLE communication to the power-limited STA on behalf of the AP.
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公开(公告)号：US10568158B2
公开(公告)日：2020-02-18
申请号：US16130342
申请日：2018-09-13
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
摘要： 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.
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公开(公告)号：US10433353B2
公开(公告)日：2019-10-01
申请号：US15065584
申请日：2016-03-09
申请人： Apple Inc.
发明人： 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 , Andreas Wolf
摘要： In some embodiments, one or more wireless stations operate to configure Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate to aspects of NAN communication, including service discovery proxy registration, publishing, and subscription of services via the proxy, maintenance of the proxy, and de-registration of the proxy.
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公开(公告)号：US10321423B2
公开(公告)日：2019-06-11
申请号：US15335747
申请日：2016-10-27
申请人： Apple Inc.
发明人： Yong Liu , Christiaan A. Hartman , Guoqing Li , Su Khiong Yong , Lawrie Kurian , Peter N. Heerboth
摘要： 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 wireless station to discover a neighboring peer wireless station, e.g., via peer-to-peer Wi-Fi communications, receive a synchronization beacon(s) from the neighboring peer wireless station, and synchronize timing with the neighboring peer wireless station based at least in part on the synchronization beacon(s). In addition, the wireless station may transmit, e.g., via Wi-Fi peer-to-peer communications, a data beacon to one or more neighboring wireless devices stations, wherein the one or more neighboring wireless stations are configured to synchronize timing with the wireless station based on the data beacon.
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公开(公告)号：US10271180B2
公开(公告)日：2019-04-23
申请号：US15404631
申请日：2017-01-12
申请人： Apple Inc.
发明人： Yong Liu , Su Khiong Yong , Christiaan A. Hartman , Lawrie Kurian , Peter N. Heerboth , Guoqing Li
摘要： 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 perform multicast communications amongst a group of peer devices. Embodiments described herein provide mechanisms for initiation (or establishment) and scheduling of a multicast group as well as enrollment of a device into a multicast group, merging of multicast groups, and termination of multicast groups.
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公开(公告)号：US10194468B2
公开(公告)日：2019-01-29
申请号：US15449652
申请日：2017-03-03
申请人： Apple Inc.
发明人： Jarkko Kneckt , Guoqing Li , Christiaan A. Hartman , Joonsuk Kim
摘要： Determining wireless local area network (WLAN) channel medium usage information by WLAN access points (APs) and WLAN stations (STAs) is disclosed. A new medium access control (MAC) duration field in a request to send (RTS) message provides a duration value to be conveyed in a subsequent clear to send (CTS) message. A channel or bandwidth can then be quickly used if an addressed STA does not respond to the RTS message. Also, a STA recognizes an unexpected silence and accesses the medium when a trigger frame is followed by a CTS timeout interval. In a third embodiment, an AP requests that STAs monitor particular channels to obtain network allocation vector (NAV) information. The STAs then respond (or informatively, do not respond) to RTS messages; thus, allowing the AP and other listening devices to determine channel medium information. The AP can then schedule data exchanges based on the determined information.
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公开(公告)号：US10142985B2
公开(公告)日：2018-11-27
申请号：US15099859
申请日：2016-04-15
申请人： Apple Inc.
发明人： Chiu Ngok E. Wong , Joonsuk Kim , Christiaan A. Hartman , Guoqing Li , Su Khiong Yong , Yong Liu
摘要： In embodiments, a wireless device, such as a Wi-Fi device, transmits communication signals on secondary channels within an operational bandwidth of a wireless network, concurrent with a transmission from another wireless device on a primary channel. The wireless device may detect that a first frequency band within an operating bandwidth of a wireless network is occupied by a first transmission transmitted by a second wireless device, and determine that a second, different frequency band within the operating bandwidth of the wireless network is not occupied. In response, the wireless device may transmit a second transmission occupying the second frequency band concurrent with the first transmission. The wireless device may set a duration of the second transmission based at least in part on a determination of whether the second wireless device is configured to assess the state of all frequency bands within the operating bandwidth before beginning a subsequent transmission.
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