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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：US10178673B1
公开(公告)日：2019-01-08
申请号：US15379274
申请日：2016-12-14
Applicant: Marvell International Ltd.
Inventor： Jinjing Jiang , Liwen Chu , Yakun Sun , Lei Wang , Hongyuan Zhang
Abstract: Systems and techniques relating to wireless communications are described. A described technique includes transmitting a signal to cause wireless devices to concurrently transmit sounding packets on different subcarriers within a frequency band during a multi-user uplink transmission; receiving, concurrently, sounding packets from the wireless devices on the different subcarriers within the frequency band during the multi-user uplink transmission; determining subcarrier channel qualities based on the sounding packets; and assigning the subcarriers among the wireless devices for a subsequent multi-user uplink transmission based on the subcarrier channel qualities.
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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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Patent Agency Ranking
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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18.发明申请TONE BLOCK ALLOCATION FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS DATA UNIT 审中-公开正交频分多路访问数据单元的音调分配公开(公告)号：US20170063588A1
公开(公告)日：2017-03-02
申请号：US15337530
申请日：2016-10-28
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Yakun SUN , Mingguang Xu , Hongyuan Zhang , Liwen Chu , Lei Wang , Hui-Ling Lou , Jinjing Jiang
CPC classification number: H04L5/0007 , H04L5/0025 , H04L5/0037 , H04L5/0094 , H04L27/2602 , H04L27/2608 , H04L27/2613 , H04W84/12
Abstract: For a first group of devices having a first group size, a set of block allocations is selected from a codebook. A block allocation for the first group of devices is selected from the selected set of block allocations. A corresponding integer number of different orthogonal frequency division multiplexing (OFDM) tone blocks is assigned to each device of the first group of devices according to the allocation. An orthogonal frequency division multiple access (OFDMA) data unit to be transmitted to the first group of devices via the WLAN communication channel is generated using the assigned set of OFDM tone blocks. The OFDMA data unit includes a preamble portion and a data portion, the preamble portion having an index to the codebook that indicates i) the first group size, and ii) the selected block allocation.
Abstract translation: 对于具有第一组大小的第一组设备，从码本中选择一组块分配。 从所选择的块分配集中选择第一组设备的块分配。 根据分配，对第一组设备的每个设备分配对应的整数个不同的正交频分复用（OFDM）音调块。 使用所分配的一组OFDM音调块来生成经由WLAN通信信道发送到第一组设备的正交频分多址（OFDMA）数据单元。 OFDMA数据单元包括前导码部分和数据部分，前导码部分具有指示码本的索引，其指示i）第一组大小，以及ii）所选择的块分配。
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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：US10382598B1
公开(公告)日：2019-08-13
申请号：US15265614
申请日：2016-09-14
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Yakun Sun , Lei Wang
Abstract: A first format according to which a PHY data unit is to be generated is selected. The data unit is generated according to the first format, including generating a PHY preamble of the PHY data unit to include a first field and a second field. The PHY preamble is generated so that one or more OFDM symbols are rotated by 90 degrees with respect to other OFDM symbols in the PHY preamble to signal the first format. Or, the first field is generated to include a set of bits that according to an error detection scheme that does not conform to a second format; or the set of information bits indicates a mode not supported in connection with the second format. Or, a duplicate of at least one of the first field and the second field is included in the PHY preamble, to signal the first format.
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