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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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公开(公告)号：US10257859B1
公开(公告)日：2019-04-09
申请号：US15598107
申请日：2017-05-17
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Jinjing Jiang , Hongyuan Zhang , Hui-Ling Lou
IPC: H04W74/08 , H04B17/318
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 receive signals and transmit signals in one or more channels. The processing circuit is configured to detect that received signals in a channel carry a data unit, determine that the data unit belongs to an overlapping basic service set (OBSS) that overlaps with a basic service set (BSS) that the apparatus belongs to without information in a preamble of the data unit, select a clear channel assessment threshold that is dynamically adjusted for spatial re-use when the data unit is determined to belong to the OBSS, and compare a signal strength of the data unit with the selected clear channel assessment threshold to determine a busy/idle status of the channel.
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公开(公告)号：US10194268B1
公开(公告)日：2019-01-29
申请号：US15041954
申请日：2016-02-11
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Sagar A. Tamhane , Hongyuan Zhang , Hui-Ling Lou , Kwok Shum Au
Abstract: A first communication device determines scheduling information for a plurality of range measurement signal exchange sessions between the first communication device and one or more second communication devices, wherein the plurality of range measurement signal exchange sessions involve using at least one of i) different channel bandwidths, and ii) different physical layer data unit (PPDU) formats for the plurality of range measurement signal exchange sessions. The first communication device transmits a single packet that includes scheduling information so that a third communication device can use the scheduling information to observe one or more of the range measurement signal exchange sessions in the plurality of range measurement signal exchange sessions between the first communication device and one or more second communication devices, to determine range measurements.
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公开(公告)号：US10182399B1
公开(公告)日：2019-01-15
申请号：US15439627
申请日：2017-02-22
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Chor-Teck Law , Hongyuan Zhang , Hui-Ling Lou
Abstract: Systems and techniques relating to wireless networking, namely employing power management (PM) indication mechanisms in addition to ROM indication mechanisms so as to support ROM related outage period enhancements, include: transmitting a first data frame, wherein a format of the first data frame comprises: (i) a field indicating a change in receive operation mode (ROM) settings, and (ii) a subfield having a value indicating a power management mode of the wireless device; receiving an acknowledgement frame to enable a power management mode associated with the subfield in the first frame, the acknowledgement frame having been transmitted by a second wireless device in response to receiving the first frame by the second wireless device, wherein the power management mode delays transmission of additional frames to the first wireless device until receiving a second data frame having a value indicating a change in the power management mode.
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公开(公告)号：US10082557B1
公开(公告)日：2018-09-25
申请号：US15041911
申请日：2016-02-11
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Sagar A. Tamhane , Hongyuan Zhang , Hui-Ling Lou , Kwok Shum Au
Abstract: A first communication device receives a packet that includes scheduling information for a range measurement signal exchange session between a second communication device and a third communication device. The first communication device determines when the range measurement signal exchange session will occur using the scheduling information in the packet, and observes the range measurement signal exchange session. The first communication device performs an initial analysis of the range measurement packets by analyzing transmitter addresses in the range measurement packets to determine whether to further process the range measurement packets for range measurement purposes, and determines range measurements based on observing the one range measurement signal exchange session.
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Patent Agency Ranking
公开(公告)号：US10080222B1
公开(公告)日：2018-09-18
申请号：US14961512
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: H04L5/0007 , H04L5/0053 , H04L5/0094
Abstract: A method for transmitting an orthogonal frequency division multiple access (OFDMA) data unit is described. Respective sub-channels of an orthogonal frequency division multiplexing (OFDM) communication channel are allocated to first and second communication devices for simultaneous OFDM transmission. A first sub-channel is allocated to the first communication device and a second sub-channel is allocated to the second communication device. Indications of the respective allocated sub-channels are transmitted to the first and second communication devices. A medium access control (MAC) protocol data unit (MPDU) is generated that omits i) a MAC address of a transmitter, and ii) a MAC address of the first communication device. An OFDMA data unit including the MPDU is transmitted by the transmitter via the first sub-channel to the first communication device.
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公开(公告)号：US09854607B1
公开(公告)日：2017-12-26
申请号：US14617145
申请日：2015-02-09
Applicant: Marvell International LTD.
Inventor： Liwen Chu , Hongyuan Zhang , Hui-Ling Lou , Lei Wang , Jinjing Jiang
CPC classification number: H04W52/241 , H04W74/002 , H04W74/0808 , H04W84/12 , H04W88/08
Abstract: An access point including a receiving module to receive first information indicating whether a first device supports a dynamic clear channel assessment (CCA) capability, which includes an ability to dynamically change a CCA threshold in a frequency channel to detect whether a medium is idle or busy. A CCA module generates second information in response to receiving the first information about the first device. The second information is based on the first information and indicates a CCA method used by the access point in response to receiving the first information. A transmitting module transmits the second information in response to receiving the first information about the first device. The second information is usable by one or more devices associated with the access point in a basic service set of the access point to select respective CCA procedures to detect whether the medium is idle or busy.
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公开(公告)号：US09826532B1
公开(公告)日：2017-11-21
申请号：US15019768
申请日：2016-02-09
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Hongyuan Zhang , Lei Wang , Yakun Sun , Jinjing Jiang , Hui-Ling Lou
CPC classification number: H04W72/1284 , H04W84/12
Abstract: A method for transmitting a resource request for an orthogonal frequency division multiple access (OFDMA) transmission is described. A resource request field that indicates buffer information corresponding to queued media access control (MAC) protocol data units (MPDUs) that are queued for transmission by a first communication device is generated. The resource request field includes i) a scale factor subfield that indicates a scale value, and ii) a resource subfield that indicates a base resource value. A resource request MPDU including the resource request field is generated. The resource request MPDU is transmitted to a second communication device via a wireless communication channel to request an allocation of radio resources for the OFDMA transmission. The buffer information is i) a number of bytes indicated by the scale value multiplied by the base resource value, or ii) a transmission opportunity duration indicated by the scale value multiplied by the base resource value.
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公开(公告)号：US09699741B1
公开(公告)日：2017-07-04
申请号：US14687442
申请日：2015-04-15
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Hui-Ling Lou , Hongyuan Zhang , Yakun Sun
CPC classification number: H04W52/243 , H04W52/143 , H04W52/367 , H04W52/40 , H04W74/002 , H04W84/12 , H04W88/08
Abstract: A wireless communication system includes a first access point, and at least one first station in communication with the first access point. The first access point controls access parameters for communications with a first station. The access parameters may include Enhanced Distributed Channel Access parameters such as a minimum or maximum contention window parameter, an arbitration interframe spacing parameter, or a transmit opportunity limit parameter. The access parameters also may include a channel bandwidth parameter, a transmit power parameter, or a data rate parameter such as a modulation and coding scheme parameter. Where the system includes an additional access point, and at least one additional station in communication with the additional access point, the first access point and the additional access point control access parameters to avoid interference between the first access point and the additional access point. A central controller may coordinate between the first and additional access points.
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公开(公告)号：US09628260B1
公开(公告)日：2017-04-18
申请号：US14543103
申请日：2014-11-17
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Hongyuan Zhang , Hui-Ling Lou
CPC classification number: H04L7/0091 , H04B1/7073 , H04B7/0617 , H04L5/0007 , H04L25/0226 , H04W56/00
Abstract: In a wireless communication system where communication devices exchange information utilizing physical layer (PHY) data units that conform to a first format, where the first format includes a short training field (STF) that includes exactly N repetitions of a spreading sequence, a method for generating a PHY data unit that conforms to a second format, where the second format has a longer STF than the first format, includes generating an STF of the PHY data unit that includes M instances of the spreading sequence, where M is greater than N, and generating a channel estimation field (CEF).
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