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公开(公告)号：US20180359704A1
公开(公告)日：2018-12-13
申请号：US15997497
申请日：2018-06-04
Applicant: Apple Inc.
Inventor： Guoqing Li , Yong Liu , Oren Shani , Xiaowen Wang , Christiaan A. Hartman , Matthew L. Semersky , Josef Peery , Yoel Boger , Tushar R. Shah , Rajneesh Kumar , Christian W. Mucke
IPC: H04W52/02
CPC classification number: H04W52/0219 , H04W4/06 , H04W52/0235 , H04W76/40 , H04W84/12
Abstract: An interface circuit in an electronic device (such as an access point) may provide a group wake-up packet to a group of recipient electronic devices in a set of recipient electronic devices. During operation, the interface circuit may select the group in the set of recipient electronic devices, where the group includes at least one of the recipient electronic devices. Then, the interface circuit may provide the group wake-up packet for the recipient electronic devices in the group with information that specifies that a subset of the recipient electronic devices in the group transition from a low-power mode. For example, the information may include a bitmap that specifies the subset and an identifier of the group. Note that the electronic device may dynamically define the group. Alternatively, the recipient electronic devices in the group may be static.
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公开(公告)号：US20200053729A1
公开(公告)日：2020-02-13
申请号：US16532995
申请日：2019-08-06
Applicant: Apple Inc.
Inventor： 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
Abstract: 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.
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公开(公告)号：US20190069231A1
公开(公告)日：2019-02-28
申请号：US16109985
申请日：2018-08-23
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Matthew L. Semersky , Christiaan A. Hartman , Oren Shani , Yong Liu , Xiaowen Wang , Tushar R. Shah , Yoel Boger , Rajneesh Kumar , Josef Peery , Christian W. Mucke , Guoqing Li
Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.
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公开(公告)号：US20180376419A1
公开(公告)日：2018-12-27
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
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.
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公开(公告)号：US11564169B2
公开(公告)日：2023-01-24
申请号：US16012935
申请日：2018-06-20
Applicant: Apple Inc.
Inventor： Guoqing Li , Oren Shani , Yong Liu , Xiaowen Wang , Yoel Boger , Christiaan A. Hartman , Christian W. Mucke , Tushar R. Shah , Matthew L. Semersky , Josef Peery
IPC: H04W52/02 , H04L25/02 , H04B17/336 , H04B1/00 , H04W84/12
Abstract: An interface circuit in a device, e.g., an access point, may perform link adaptation. During operation, the interface circuit may provide a wake-up frame, e.g., a LP-WUR packet, associated with a channel in a band of frequencies, where the wake-up frame is intended for a wake-up radio in a recipient device. Then, the interface circuit may receive, from the recipient device, feedback information associated with a second channel in a second band of frequencies, where the feedback information is associated with a main radio in the recipient device. Based at least in part on the feedback information, the interface circuit may estimate one or more communication metrics associated with the channel in the band of frequencies. Moreover, based at least in part on the one or more communication metrics, the interface circuit may determine a data rate for use in communication via the channel in the band of frequencies.
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Patent Agency Ranking
公开(公告)号：US11184890B2
公开(公告)日：2021-11-23
申请号：US16532995
申请日：2019-08-06
Applicant: Apple Inc.
Inventor： 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
Abstract: 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.
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公开(公告)号：US20200059941A1
公开(公告)日：2020-02-20
申请号：US16665256
申请日：2019-10-28
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Paul V. Flynn , Louie J. Sanguinetti , Bernd W. Adler , Christian W. Mucke , Joseph Hakim , Ronald W. Dimpflmaier , Matthias Sauer , Tushar R. Shah , Daniel R. Borges , Rafael L. Rivera-Barreto , Cesar Perez
Abstract: An apparatus such as a wireless communication device (UE) may include first circuitry configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, where the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. The apparatus may include second circuitry configured to conduct wireless communications according to a second RAT in the first frequency band, wherein the second RAT is a wireless local area network (WLAN) RAT. The apparatus may be configured to determine to perform a scan operation in the first frequency band using the first circuitry and, based on one or more transmissions by the second circuitry using the first frequency band, adjust one or more parameters for the scan measurement by the first circuitry. The cellular communications in the first frequency band may be LAA communications, for example.
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公开(公告)号：US10462805B2
公开(公告)日：2019-10-29
申请号：US15711061
申请日：2017-09-21
Applicant: Apple Inc.
Inventor： Farouk Belghoul , Paul V. Flynn , Louie J. Sanguinetti , Bernd W. Adler , Christian W. Mucke , Joseph Hakim , Ronald W. Dimpflmaier , Matthias Sauer , Tushar R. Shah , Daniel R. Borges , Rafael L. Rivera-Barreto , Cesar Perez
IPC: H04W72/12 , H04B7/06 , H04W16/14 , H04W72/04 , H04W24/10 , H04W74/06 , H04W72/08 , H04W74/08 , H04W88/06
Abstract: A wireless communication device (UE) includes a cellular processor configured to conduct wireless communications according to a first radio access technology (RAT) in a first frequency band and in a second frequency band, wherein the first RAT is a cellular RAT, the first frequency band is in an unlicensed spectrum, and the second frequency band is in a licensed spectrum. In some embodiments, the apparatus includes a wireless local area network (WLAN) processor configured to conduct wireless communications according to a second RAT in the first frequency band. In some embodiments, the cellular processor and the WLAN processor are configured to couple to a common antenna for communications in the first frequency band. In some embodiments, the cellular processor may notify the WLAN processor when it is scanning and/or when it is assigned secondary component carriers in the first frequency band. In some embodiments, the WLAN processor may notify the cellular processor when it is transmitting. In some embodiments, the WLAN processor and/or the cellular processor may perform one or more actions in response to such notifications to improve coexistence in the first frequency band.
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公开(公告)号：US10924993B2
公开(公告)日：2021-02-16
申请号：US16109985
申请日：2018-08-23
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Matthew L. Semersky , Christiaan A. Hartman , Oren Shani , Yong Liu , Xiaowen Wang , Tushar R. Shah , Yoel Boger , Rajneesh Kumar , Josef Peery , Christian W. Mucke , Guoqing Li
Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.
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公开(公告)号：US10158997B2
公开(公告)日：2018-12-18
申请号：US15468016
申请日：2017-03-23
Applicant: Apple Inc.
Inventor： Alejandro J. Marquez , Tushar R. Shah , Mohit Narang , Indranil S. Sen , Shang-Te Yang
Abstract: A wireless network may include devices that wirelessly transmit and receive packets. Each packet may include a preamble, a start-of-frame delimiter, a physical layer header, a sequence of symbols between the start-of-frame delimiter and the physical layer header, and a data payload. The sequence of symbols may have a pattern that is resistant to spoofing attacks. A receiving device may have a correlator that correlates known symbols against the symbols in the sequence using overlapping three-symbol-length correlation windows. Early arrival peaks in the output of the correlator may be used to correct time stamp information in the packets and late arrival peaks corresponding to spoofed signals from an attacker may be ignored. Time stamp information may be processed to determine ranges between transmitting and receiving devices.
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