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公开(公告)号:US20220408237A1
公开(公告)日:2022-12-22
申请号:US17842314
申请日:2022-06-16
Applicant: Apple Inc.
Inventor: Jarkko L. Kneckt , Veerendra Boodannavar , Charles F. Dominguez , Yong Liu , Su Khiong Yong , Tianyu Wu , Daniel R. Borges , Sundar Sriram , Oren Shani , Yoel Boger , Anuj Batra , Debashis Dash , Matthew L. Semersky , Ahmet G. Cepni , Noam Ginsburg
Abstract: During operation, an electronic device may perform, using a scanning radio, a scan of a band of frequencies, where the scanning radio only receives frames. Then, the electronic device may receive, using the scanning radio, a beacon frame associated with a second electronic device, where the beacon frame includes information associated with operation of a third electronic device in a second band of frequencies. Next, the electronic device may perform, using a data radio, a second scan of the second band of frequencies based at least in part on the information, where the data radio transmits and/or receives second frames, and where the second scan is performed, at least in part, while the scan is performed. Note that the electronic device may not be associated with (or may not have a connection with) the second electronic device and/or the third electronic device.
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公开(公告)号:US20220085969A1
公开(公告)日:2022-03-17
申请号:US17472242
申请日:2021-09-10
Applicant: Apple Inc.
Inventor: Christopher D. Finan , Alexander Ukanwa , Charles F. Dominguez , Jean-Didier Allegrucci , Jeffrey J. Irwin , Kalpana Bansal , Michael Bekerman , Remi Clavel
IPC: H04L7/00
Abstract: A method and apparatus for synchronizing a timebase is disclosed. A timebase management circuit includes limit circuitry, in a first clock domain, which generates, based on a global timebase, an initial timebase limit. The timebase management circuit includes, in a second clock domain, adjustment circuitry that generates an adjusted timebase limit based on the initial timebase limit. A storage circuit in the second clock domain stores a local timebase. Update circuitry, coupled to an output of the storage circuit, generates an updated local timebase using a clock signal in the second clock domain, wherein the updated local timebase is subject to the adjusted timebase limit.
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公开(公告)号:US10212694B2
公开(公告)日:2019-02-19
申请号:US15618960
申请日:2017-06-09
Applicant: Apple Inc.
Inventor: Harish Ramamurthy , Kapil Chhabra , Matthew L. Semersky , Daniel R. Borges , Charles F. Dominguez
Abstract: This document describes multicast communication between wireless devices. A scheduling frame may be wirelessly transmitted by a wireless device. The scheduling frame may include a multicast address indicating a group of intended receiving devices for a payload frame. The scheduling frame may further include scheduling information indicating an order for the group of intended receiving devices to transmit acknowledgement information for the payload frame. A payload frame may also be wirelessly transmitted by the wireless device. The payload frame may include payload information intended for the group of intended receiving devices. Additionally, acknowledgement frames may be wirelessly received by the wireless device from at least a subset of the group of intended receiving devices. The acknowledgement frames may be received according to the order indicated in the scheduling information.
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公开(公告)号:US20240406906A1
公开(公告)日:2024-12-05
申请号:US18325213
申请日:2023-05-30
Applicant: Apple Inc.
Inventor: Jarkko L. Kneckt , Charles F. Dominguez , Daniel R. Borges , Debashis Dash , Elliot S. Briggs , Ilan Evron , Nisan Reuven , Sidharth R. Thakur , Su Khiong Yong , Tianyu Wu , Udi Atar , Yong Liu
IPC: H04W60/04
Abstract: An electronic device is described. This electronic device may associate with a second electronic device (such as an access point) in a WLAN. While associating or associated with the second electronic device, the electronic device may receive, from the second electronic device, an AID corresponding to the electronic device for use when communicating frames in the WLAN. Moreover, while associated with the second electronic device, the electronic device may obtain a second AID corresponding to the electronic device for use when communicating second frames in the WLAN, where the associating includes replacing the AID with the second AID. Note that obtaining the second AID may include: the electronic device selecting the second AID from a predefined set of AIDs, which were previously received from the second electronic device; or the electronic device receiving, from the second electronic device, the second AID.
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公开(公告)号:US20240372692A1
公开(公告)日:2024-11-07
申请号:US18676210
申请日:2024-05-28
Applicant: Apple Inc.
Inventor: Christopher D. Finan , Alexander Ukanwa , Charles F. Dominguez , Jean-Didier Allegrucci , Jeffrey J. Irwin , Kalpana Bansal , Michael Bekerman , Remi Clavel
Abstract: A method and apparatus for synchronizing a timebase is disclosed. A timebase management circuit includes limit circuitry, in a first clock domain, which generates, based on a global timebase, an initial timebase limit. The timebase management circuit includes, in a second clock domain, adjustment circuitry that generates an adjusted timebase limit based on the initial timebase limit. A storage circuit in the second clock domain stores a local timebase. Update circuitry, coupled to an output of the storage circuit, generates an updated local timebase using a clock signal in the second clock domain, wherein the updated local timebase is subject to the adjusted timebase limit.
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公开(公告)号:US20240340885A1
公开(公告)日:2024-10-10
申请号:US18612928
申请日:2024-03-21
Applicant: Apple Inc.
Inventor: Qi Wang , Yong Liu , Jarkko L. Kneckt , Yijun Qiao , Oren Shani , Debashis Dash , Charles F. Dominguez , Jinjing Jiang , Su Khiong Yong , Sidharth R. Thakur , Tianyu Wu , Zhou Lan , Anuj Batra , Mohamed Abouelseoud
CPC classification number: H04W72/1215 , H04W76/10
Abstract: This disclosure relates to methods for providing unsolicited unavailability announcements to manage the co-existence of Wi-Fi and other technologies (such as Bluetooth) and to manage infrastructure and peer-to-peer connections in a wireless communication system. A wireless device may establish multiple wireless connections on a set of radio resources. The wireless device may transmit an unsolicited unavailability announcement frame, which may include information indicating a time period of future unavailability for the wireless device on the set of radio resources. Such an unsolicited unavailability announcement frame may also include information regarding the device's current availability, for example during which the device plans to initiate a transmit opportunity.
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公开(公告)号:US11683149B2
公开(公告)日:2023-06-20
申请号:US17472242
申请日:2021-09-10
Applicant: Apple Inc.
Inventor: Christopher D. Finan , Alexander Ukanwa , Charles F. Dominguez , Jean-Didier Allegrucci , Jeffrey J. Irwin , Kalpana Bansal , Michael Bekerman , Remi Clavel
CPC classification number: H04L7/0016 , G06F1/12 , H04L7/0008
Abstract: A method and apparatus for synchronizing a timebase is disclosed. A timebase management circuit includes limit circuitry, in a first clock domain, which generates, based on a global timebase, an initial timebase limit. The timebase management circuit includes, in a second clock domain, adjustment circuitry that generates an adjusted timebase limit based on the initial timebase limit. A storage circuit in the second clock domain stores a local timebase. Update circuitry, coupled to an output of the storage circuit, generates an updated local timebase using a clock signal in the second clock domain, wherein the updated local timebase is subject to the adjusted timebase limit.
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公开(公告)号:US20230147562A1
公开(公告)日:2023-05-11
申请号:US17949910
申请日:2022-09-21
Applicant: Apple Inc.
Inventor: Jarkko L Kneckt , Charles F. Dominguez , Daniel R. Borges , Debashis Dash , Elliot S. Briggs , Sidharth R. Thakur , Su Khiong Yong , Yong Liu
IPC: H04W12/037 , H04W12/06
CPC classification number: H04W12/037 , H04W12/06
Abstract: Systems, methods, and mechanisms for a privacy enhanced basic service set (BSS), including privacy enhancements for both access points and wireless stations as well as privacy enchantments for authentication, association, and discovery operations. Further, the systems, methods, and mechanisms disclosed may continue to support legacy wireless stations and are thus, backward compatible. A station may communicate with a legacy BSS of a wireless network to transition to a PE BSS of the wireless network. The station may receive, from the PE BSS of the wireless network, an encrypted beacon, wherein the encrypted beacon is decoded based on information received from the legacy BSS and perform, with the PE BSS of the wireless network, an encrypted handshake procedure to authenticate and associate with the PE BSS of the wireless network.
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公开(公告)号:US20230144897A1
公开(公告)日:2023-05-11
申请号:US17949933
申请日:2022-09-21
Applicant: Apple Inc.
Inventor: Jarkko L Kneckt , Charles F. Dominguez , Daniel R. Borges , Debashis Dash , Elliot S. Briggs , Sidharth R. Thakur , Su Khiong Yong , Yong Liu
Abstract: Systems, methods, and mechanisms for a privacy enhanced basic service set (BSS), including privacy enhancements for both access points and wireless stations as well as privacy enchantments for authentication, association, and discovery operations. Further, the systems, methods, and mechanisms disclosed may continue to support legacy wireless stations and are thus, backward compatible. A non-associated PE station may receive, from a PE access point, one or more discovery beacons advertising PE BSSs hosted by the PE access point and transmit, to the PE access point, a request to setup pre-association security protection. The non-associated PE station may, upon setup of pre-association security protection, transmit, to the PE access point, a protected request frame and receive, from the PE access point, a protected response that includes PE access point parameters.
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公开(公告)号:US20230091434A1
公开(公告)日:2023-03-23
申请号:US17482178
申请日:2021-09-22
Applicant: Apple Inc.
Inventor: Christopher D. Finan , Alexander Ukanwa , Charles F. Dominguez , Kalpana Bansal , Michael Bekerman , Remi Clavel
Abstract: An apparatus for time management of a peripheral device is disclosed. A peripheral interface circuit receives information from a host circuit over a peripheral bus, the host circuit maintaining a global timebase in accordance with a first clock signal within a first clock domain. The peripheral interface circuit maintains, based om a second clock signal within a second clock domain, a first local timebase correlated to the global timebase. A peripheral control circuit operates in a third clock domain and maintains a second local timebase based on the first. The peripheral interface circuit determines phase and frequency differences between the second and third clock signals in determining a correlation between the second and first local timebases. A peripheral logic circuit in the third clock domain performs, operations that utilize a timestamp from the second local timebase, which accounts for correlation with the first local timebase.
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