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公开(公告)号：US10928505B1
公开(公告)日：2021-02-23
申请号：US15977643
申请日：2018-05-11
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
Abstract: A first communication device generates a null data packet (NDP) announcement (NDPA) frame, which indicates that the first communication device will transmit a first NDP after transmitting the NDPA frame, and which includes information that indicates the NDPA frame is part of a ranging measurement exchange session. The first communication device transmits the NDPA frame as part of the ranging measurement exchange session, and transmits the first NDP after transmitting the NDPA frame. The first communication device receives a second NDP from a second communication device as part of the ranging measurement exchange session, and receives a feedback packet from the second communication device as part of the ranging measurement exchange session. The feedback packet includes feedback information regarding the ranging measurement exchange session.
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公开(公告)号：US10764855B1
公开(公告)日：2020-09-01
申请号：US16262616
申请日：2019-01-30
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Hongyuan Zhang , Hui-Ling Lou
Abstract: A first communication device includes a first timer and a second communication device includes a second timer. The first communication device receives, from the second communication device, a packet that includes a timestamp that corresponds to a least significant portion of the second timer. The first communication device determines whether a most significant bit of a least significant portion of the first timer is different than a most significant bit of the timestamp. At least when the most significant bit of the least significant portion of the first timer is different than the most significant bit of the timestamp: the first communication device determines a mathematical difference between i) the least significant portion of the first timer and ii) the timestamp, and selectively adjusts a most significant portion of the first timer based on the mathematical difference. The first communication device uses the timestamp to set the least significant portion of the first timer.
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公开(公告)号：US10484980B1
公开(公告)日：2019-11-19
申请号：US15488281
申请日：2017-04-14
Applicant: Marvell International Ltd.
Inventor： Jinjing Jiang , Liwen Chu , Lei Wang , Yakun Sun , Hongyuan Zhang , Hui-Ling Lou
Abstract: Systems, devices, and techniques relating to a link layer service platform (LSP) that provides, among other things, assisted multi-band wireless communications are described. A described device includes a first radio to transmit and receive based on a first wireless protocol; a second radio to transmit and receive based on a second wireless protocol, the second wireless protocol being different from the first wireless protocol; and a controller to use the first radio to assist communications via the second radio. The controller can be configured to cause the first radio to transmit, receive, or both one or more control frames associated with the second wireless protocol using the first wireless protocol, and cause the second radio to transmit or receive one or more data frames using the second wireless protocol in accordance with the one or more control frames.
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公开(公告)号：US10306704B1
公开(公告)日：2019-05-28
申请号：US15589774
申请日：2017-05-08
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：US10257328B2
公开(公告)日：2019-04-09
申请号：US15691398
申请日：2017-08-30
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Sagar A. Tamhane , Hongyuan Zhang , Hui-Ling Lou
Abstract: Aspects of the disclosure provide an apparatus having a processing circuit and a transceiver. The processing circuit is configured to generate a frame to have an extended subtype under a control type, configure a media access control (MAC) header of the frame to indicate an extended control frame format, and configure a field of the frame to be an extended subtype field according to the extended control frame format to carry an identification for the extended subtype. The extended subtype is defined in addition to a plurality of subtypes that are identifiable using a subtype field in the frame according to a control frame format. The transceiver is configured to transmit signals to carry the frame.
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Patent Agency Ranking
公开(公告)号：US10212019B1
公开(公告)日：2019-02-19
申请号：US16113972
申请日：2018-08-27
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Hui-Ling Lou , Songping Wu
Abstract: A communication device determines an estimate of a communication channel, and determines, based on the estimate of the communication channel, a plurality of pairs of modulation schemes and encoding schemes to be used for a packet, including: i) determining, for a first set of adjacent orthogonal frequency division multiplexing (OFDM) subcarriers, a first pair of a modulation scheme and an encoding scheme; and ii) determining, for a second set of adjacent OFDM subcarriers, a second pair of a modulation scheme and an encoding scheme, the second pair being different than the first pair. The communication device generates the packet for transmission, wherein i) all data modulated on the first set of adjacent OFDM subcarriers is modulated and encoded using the first pair, and ii) all data modulated on the second set of adjacent OFDM subcarriers is modulated and encoded using the second pair.
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公开(公告)号：US10135582B1
公开(公告)日：2018-11-20
申请号：US14582568
申请日：2014-12-24
Applicant: Marvell International Ltd.
Inventor： Yakun Sun , Hongyuan Zhang , Liwen Chu , Hui-Ling Lou
Abstract: Systems and methods are provided for introducing time diversity in a transmitter. The systems and methods may include receiving, at the transmitter, a request from a receiver to retransmit data. The systems and methods may further include receiving an input of data corresponding to the data requested for retransmission at a first transmitter block. The systems and methods may further include operating on the signals using the first transmitter block in at least one of a first mode and a second mode, such that an output of signals from the first transmitter block is dependent on a time-varying function and corresponds to the data requested by the receiver for retransmission.
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公开(公告)号：US10128966B1
公开(公告)日：2018-11-13
申请号：US15589796
申请日：2017-05-08
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Jinjin Jiang , Hongyuan Zhang , Hui-Ling Lou
IPC: H04W74/00 , H04B17/345 , H04W16/02 , H04W52/24 , H04L12/823 , H04W16/10 , H04W84/12 , H04L5/00 , H04L1/00
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 determine a transmission parameter adjustment for the transceiver, detect that the transmission parameter adjustment has a potential to cause a collision to an overlapping basic service set (OBSS), adjust timings for transmission control to avoid the collision, and control the transceiver based on the determined transmission parameter adjustment and the adjusted timings for transmission control.
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公开(公告)号：US10063402B1
公开(公告)日：2018-08-28
申请号：US15451177
申请日：2017-03-06
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Hui-Ling Lou , Songping Wu
CPC classification number: H04L27/34 , H04L5/0007 , H04L5/0046 , H04L5/006 , H04L25/0204 , H04L25/0262 , H04L27/2647 , H04L27/2657
Abstract: A communication device determines an estimate of a communication channel, and determines, based on the estimate of the communication channel, a plurality of bit rates to be used for a data unit, including: determining a first bit rate for a first set of one or more orthogonal frequency division multiplexing (OFDM) subcarriers, and determining a second bit rate for a second set of one or more OFDM subcarriers, the second bit rate being different than the first bit rate. The communication device generates the data unit for transmission, wherein i) all data modulated on the first set of one or more OFDM subcarriers corresponds to the first bit rate and ii) all data modulated on the second set of one or more OFDM subcarriers corresponds to the second bit rate.
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公开(公告)号：US10045340B1
公开(公告)日：2018-08-07
申请号：US14961558
申请日：2015-12-07
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Jinjing Jiang , Hongyuan Zhang , Hui-Ling Lou
Abstract: A method is carried out on a device capable of utilizing a high efficiency wireless local area network (HEW) communication protocol and a legacy communication protocol, and includes wirelessly receiving a communication frame; when the measured energy level of the frame exceeds a static clear channel assessment (CCA) energy level, identifying the BSS to which the frame corresponds, wherein identifying the BSS to which the frame corresponds comprises utilizing a BSS identifier included in the frame when the frame is an HEW frame or utilizing a MAC address included in the frame when the frame is a legacy frame; when the frame corresponds to the same BSS as the device, processing the frame utilizing the static CCA energy level; and when the frame corresponds to an overlapping OBSS, processing the frame utilizing a dynamic CCA energy level.
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