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公开(公告)号：US09942193B1
公开(公告)日：2018-04-10
申请号：US14961359
申请日：2015-12-07
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Hongyuan Zhang , Lei Wang , Jinjing Jiang , Hui-Ling Lou
CPC classification number: H04L61/2038 , H04L61/6072
Abstract: A method for changing a first basic service set (BSS) color identifier for a first communication device identifiable by the first BSS color identifier and a first basic service set identifier that is longer than the first BSS color identifier is described. An indication that the first BSS color identifier and a second BSS color identifier for a second communication device have a same first value is received by the first communication device. Respective service coverage areas of the first and second communication devices at least partially overlap. A second value of the first BSS color identifier is determined by the first communication device in response to the indication. A notification frame that indicates the second value and a start time are generated by the first communication device. The first BSS color identifier is changed by the first communication device to the second value based on the start time.
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公开(公告)号：US09608678B1
公开(公告)日：2017-03-28
申请号：US14571715
申请日：2014-12-16
Applicant: Marvell International LTD.
Inventor： Yakun Sun , Mingguang Xu , Hui-Ling Lou , Hongyuan Zhang , Yan Zhang , Liwen Chu , Jinjing Jiang
CPC classification number: H04B1/10 , H04B1/406 , H04B17/24 , H04B17/318 , H04W24/02 , H04W72/1215
Abstract: A wireless device including a first receiver and a second receiver. The first receiver is configured to receive a first signal transmitted on a first network using a first communication standard, and generate, in response to a signal strength of the first signal being greater than or equal to a predetermined threshold, first information about the first signal based on a first portion of the first signal. The second receiver is configured to receive a second signal transmitted on a second network using a second communication standard, and suppress interference from the first signal based on the first information about the first signal. The first communication standard is different from the second communication standard. The first receiver and the second receiver are co-located in the wireless device.
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公开(公告)号：US10771498B1
公开(公告)日：2020-09-08
申请号：US15178979
申请日：2016-06-10
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Sagar A. Tamhane , Nayan D. Gaywala , Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
Abstract: Systems, methods, and other embodiments associated with validating de-authentication requests to prevent spoofing are described. According to one embodiment, an apparatus includes a wireless controller configured to receive a de-authentication request and determine whether the de-authentication request is invalid based on the wireless controller's receipt of two or more responses to a timing request sent by the wireless controller. Only one response is expected. The two or more responses include the address of a first station.
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公开(公告)号：US10742285B1
公开(公告)日：2020-08-11
申请号：US15350985
申请日：2016-11-14
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Yakun Sun , Rui Cao , Hongyuan Zhang , Hui-Ling Lou
IPC: H04B7/06 , H04L5/00 , H04W84/12 , H04B7/0452 , H04L27/26
Abstract: A first communication device receives respective beamforming training data units simultaneously transmitted to the first communication device by multiple second communication devices. The first communication device generates, based on the respective beamforming training data units received from the multiple second communication devices, respective beamforming feedback data units to be transmitted to respective ones of the multiple second communication devices. The first communication device transmits the respective feedback data units to the respective ones of the multiple second communication devices.
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15.发明授权公开(公告)号：US10588165B1
公开(公告)日：2020-03-10
申请号：US14963045
申请日：2015-12-08
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Hongyuan Zhang , Jinjing Jiang , Hui-Ling Lou
Abstract: A method of determining whether a wireless communication medium is clear is carried out on a client device, and includes: associating with a first virtual access point (AP) of a plurality of virtual APs implemented by a physical AP; receiving, from a physical AP, a message identifying the basic service set (BSS) color of each of the plurality of virtual APs implemented by on the physical AP; detecting a packet data unit; measuring the energy of the packet data unit; decoding a BSS color from the packet data unit; if the decoded BSS color is the same as a BSS color in the message from the physical AP, then setting an energy threshold to a first level; if the decoded BSS color is not the same as any BSS color in the message from the physical AP, then setting an energy threshold to a second level, wherein the second level is higher than the first level; and transmitting or refraining from transmitting a packet data unit based on a comparison of the measured energy and the energy threshold.
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Patent Agency Ranking
16.发明授权公开(公告)号：US10581627B1
公开(公告)日：2020-03-03
申请号：US15418420
申请日：2017-01-27
Applicant: Marvell International Ltd.
Inventor： Jinjing Jiang , Liwen Chu , Lei Wang , Yakun Sun , Hongyuan Zhang , Hui-Ling Lou
Abstract: The present disclosure includes systems and techniques relating to broadcast and multicast in a wireless communication system. In some implementations, an announcement frame indicating a broadcast or multicast service period to multiple second wireless devices is transmitted by a first wireless device. The announcement frame indicates (i) an end time of the broadcast or multicast service period and (ii) an order of a sequence of frames to be directed to the multiple second wireless devices. Each of the sequence of frames is transmitted at the first wireless device using a directional antenna pattern to a respective one of the multiple second wireless devices, according to the order of the sequence of frames indicated in the announcement frame. An acknowledgement frame in response to the each of the sequence of frames is received at the first wireless device from the respective one of the multiple second wireless devices.
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公开(公告)号：US10554251B1
公开(公告)日：2020-02-04
申请号：US15977490
申请日：2018-05-11
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
IPC: H04B1/7156 , H04W52/02 , H04M1/725
Abstract: A first wireless device determines, while a first and second wireless transceiver are powered off, start of a service period. The first wireless transceiver is turned on in response to the determination to enable the first wireless device to establish communication via a LP wireless channel while the second wireless transceiver is off. The first wireless device receives a request frame from a second wireless device and a time of a timing function is updated based on the request frame.
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公开(公告)号：US20190281658A1
公开(公告)日：2019-09-12
申请号：US16421136
申请日：2019-05-23
Applicant: Marvell International Ltd.
Inventor： Lei Wang , Liwen Chu , Jinjin Jiang , Hongyuan Zhang , Hui-Ling Lou
Abstract: Aspects of the disclosure provide an apparatus for wireless communication. The apparatus includes a transceiver and a processing circuit. The transceiver is configured to transmit and receive wireless signals. The processing circuit is configured to detect an error of a previous scheduled transmission of data units from the apparatus to another apparatus. The other apparatus provides scheduled resources for transmission between the two apparatuses. Further, the processing circuit is configured to determine resources that are scheduled by the other apparatus for the apparatus to perform retransmission, and provide one or more of the data units in the previous scheduled transmission to the transceiver for retransmission using the scheduled resources.
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公开(公告)号：US10320690B1
公开(公告)日：2019-06-11
申请号：US15353544
申请日：2016-11-16
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Sagar A. Tamhane , Hongyuan Zhang , Sudhir Srinivasa , Hui-Ling Lou
IPC: H04L12/841 , H04L12/26 , H04L29/08 , H04W84/12
Abstract: A first communication device generates a physical layer (PHY) protocol data unit having a beginning portion and an ending portion, where the beginning portion includes a PHY protocol header having a PHY protocol preamble, and the ending portion includes a reference signal. The PHY protocol data unit prompts a second communication device to record a first time corresponding to reception of the reference signal by the second communication device. The first communication device transmits the PHY protocol data unit, records a second time corresponding to transmission of the reference signal by the first communication device. The first communication device calculates a time of flight of the PHY protocol data unit using the second time, and/or transmits the second time to the second communication device, a third communication device, or both, to facilitate calculation of the time of flight of the PHY protocol data unit using the second time.
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公开(公告)号：US10298370B1
公开(公告)日：2019-05-21
申请号：US15469362
申请日：2017-03-24
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Jinjing Jiang , Hongyuan Zhang , Hui-Ling Lou
Abstract: Systems and techniques relating to wireless networking systems and techniques, namely employing acknowledgement mechanisms utilized with trigger frames, include: transmitting, by a first wireless device, a first frame, wherein the first frame comprises a field indicating a response frame type associated with reception of the first frame; receiving, by the first wireless device from a second wireless device, an acknowledgement (ACK) frame associated with the field in the first frame via an established wireless communication channel, the ACK frame having a frame type corresponding to the response frame type indicated in the first frame; and receiving, by the first wireless device from the second wireless device, additional frames associated with the ACK frame.
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