Patents by Inventor Hongyuan Zhang

Hongyuan Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10305659
    Abstract: A method for transmitting a subchannel availability for an uplink (UL) multi-user (MU) transmission is described. An availability of one or more subchannels of an orthogonal frequency division multiplex (OFDM) channel are determined by a first communication device for the UL MU transmission. A High Throughput (HT) Control field of a media access control (MAC) header that includes an indication of the determined availability of the one or more subchannels is generated by the first communication device. A MAC protocol data unit (MPDU) that includes the HT Control field is generated by the first communication device. The MPDU is transmitted by the first communication device to a second communication device via the OFDM channel for a subsequent allocation of radio resources for the UL MU transmission by the second communication device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 28, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Yakun Sun, Hui-Ling Lou
  • Patent number: 10306704
    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.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 28, 2019
    Assignee: Marvell International Ltd.
    Inventors: Lei Wang, Liwen Chu, Jinjin Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10298370
    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.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: May 21, 2019
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20190150063
    Abstract: An access point (AP) device determines a set of basic service set identifiers (BSSIDs). Each BSSID includes a same group of most significant bits (MSBs) and a different group of n least significant bits (LSBs). The AP device assigns respective BSSIDs from the set of BSSIDs to multiple virtual APs, and designates one of the assigned BSSIDs as a reference BSSID that corresponds to a transmitter address (TA) for frames intended for client stations associated with more than one virtual AP. The AP device generates and transmits a management frame that includes i) a header with a TA field set to one of the assigned BSSIDs, and ii) a frame body with a plurality of fields that includes a) a first field set to n, and b) a second field set to the n LSBs of the reference BSSID. The TA field, the first field, and the second field in the management frame indicate the reference BSSID to a client station that receives the management frame.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 16, 2019
    Inventors: Liwen CHU, Lei WANG, Jinjing JIANG, Hongyuan ZHANG, Yakun SUN
  • Publication number: 20190150030
    Abstract: Some embodiments described herein provide a method for transmitting a preamble in accordance with a wireless local area network communication protocol. In some embodiments, a data frame may be obtained for transmission including a preamble compliant with the wireless local area network communication protocol. It may be determined that the preamble includes a first preamble portion that spans multiple symbol durations and a second preamble portion that spans a single symbol duration. The first preamble portion via beamforming may be transmitted based on a first beamforming matrix. When a transmission mode of the second preamble portion is beamforming, a second beamforming matrix may be generated based on the first beamforming matrix, each tone for the second preamble portion may be calculated based on the second beamforming matrix. Each calculated tone may be transmitted in accordance with the wireless local area network communication protocol.
    Type: Application
    Filed: September 10, 2018
    Publication date: May 16, 2019
    Inventors: Yakun Sun, Hongyuan Zhang, Sudhir Srinivasa, Xiayu Zheng
  • Patent number: 10291453
    Abstract: Systems, methods, and other embodiments associated with generating wireless communication with a long guard interval followed by short guard intervals are described. According to one embodiment, a wireless communication device includes a transmitter configured to generate and transmit an orthogonal frequency-division multiplexing (OFDM) signal with (i) a preamble and (ii) a data segment following the preamble that includes a plurality of data symbols that are each respectively preceded by a guard interval. The transmitter is configured to generate (i) a first guard interval preceding a first data symbol in the data segment following the preamble as a long guard interval, and (ii) subsequent guard intervals that are subsequent to the first guard interval according to a type of guard intervals for the OFDM signal.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 14, 2019
    Assignee: MARVELL WORLD TRADE LTD.
    Inventor: Hongyuan Zhang
  • Patent number: 10291752
    Abstract: A first communication device generates a physical layer (PHY) preamble for a PHY data unit to be transmitted via a communication channel, the PHY data unit conforming to a first communication protocol. Generating the PHY preamble includes generating a legacy portion of the PHY preamble to include a legacy signal field, which is decodable by one or more second communication devices that conform to a second communication protocol to determine a duration of the PHY data unit. The PHY preamble is generated to also include a duplicate of the legacy signal field in the PHY preamble, wherein presence of the duplicate of the legacy signal field indicates to one or more third communication devices that conform to the first communication protocol that the PHY data unit conforms to the first communication protocol. The first communication device generates the PHY data unit to include the PHY preamble and a PHY payload.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 14, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Mingguang Xu, Yakun Sun
  • Patent number: 10285202
    Abstract: A first communication device determines whether the first communication device is to use a first channel access mode or a second channel access mode for accessing a communication channel when the first communication device is triggered for uplink transmission by a second communication device. The first communication device receives a trigger frame from the second communication device. The first communication device transmits, to the second communication device, a data unit triggered by the trigger frame, including using the determined one of the first channel access mode or the second channel access mode to gain access to the communication channel.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 7, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Yakun Sun, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10278224
    Abstract: A method for simultaneously communicating with multiple communication devices in a wireless local area network is described. Multiple uplink data units are received that are simultaneously transmitted by multiple second communication devices. The multiple uplink data units include a management data unit and a traffic data unit. An acknowledgment data unit is generated to acknowledge receipt of the multiple data units. The acknowledgment data unit includes (i) an indication that indicates that the acknowledgment data unit is intended for the multiple second communication devices, and (ii) respective acknowledgment information fields for the multiple second communication devices. The respective acknowledgment information fields include a first acknowledgment information field for the management data unit and a second acknowledgment information field for the traffic data unit.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 30, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10277376
    Abstract: A first communication device receives a physical layer (PHY) data unit from a second communication device. The PHY data unit includes multiple medium access control (MAC) data units aggregated in an aggregate MAC data unit. The first communication device generates an acknowledgment data unit to acknowledge receipt of the multiple MAC data units. The acknowledgment data unit includes (i) a length indication that indicates a length of an acknowledgement field, and (ii) the acknowledgment field of the indicated length. The acknowledgement field includes respective acknowledgement information for the multiple MAC data units. The first communication device transmits the acknowledgment data unit to the second communication device.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: April 30, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20190124596
    Abstract: A communication device determines a physical layer (PHY) transmission mode for transmitting a wakeup radio (WUR) packet. The communication device generates a first portion of the WUR packet, the first portion corresponding to a WLAN legacy PHY preamble and spanning a first frequency bandwidth. The communication device generates a second portion of the WUR packet, the second portion of the WUR packet spanning a second frequency bandwidth that is less than the first frequency bandwidth. The second portion of the WUR packet includes a PHY sync signal that corresponds to the selected PHY transmission mode, wherein the PHY sync signal is selected from a plurality of different PHY sync signals that respectively correspond to a plurality of different PHY transmission modes. The communication device generates a PHY data portion, within the second portion of the WUR packet, according to the selected transmission mode.
    Type: Application
    Filed: October 9, 2018
    Publication date: April 25, 2019
    Inventors: Rui CAO, Hongyuan ZHANG
  • Publication number: 20190123863
    Abstract: A single media access control (MAC) layer processor provides data to one or more baseband signal processors, which generate a plurality of baseband signals corresponding to the data provided by the MAC layer processor. The plurality of baseband signals includes at least a first baseband signal and a second baseband signal. The first baseband signal has a first frequency bandwidth and the second baseband signal has a second frequency bandwidth that is different than the first frequency bandwidth. The one or more baseband signal processors provide the plurality of baseband signals to a plurality of radio frequency (RF) radios for simultaneous wireless transmission via a plurality of RF segments.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 25, 2019
    Inventors: Hongyuan ZHANG, Liwen CHU
  • Patent number: 10263735
    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.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 16, 2019
    Assignee: Marvell International Ltd.
    Inventors: Yakun Sun, Mingguang Xu, Hongyuan Zhang, Liwen Chu, Lei Wang, Hui-Ling Lou, Jinjing Jiang
  • Patent number: 10264544
    Abstract: A first communication determines, for a null data packet (NDP) ranging measurement procedure, i) a start time, ii) a time duration of each time slot of a plurality of time slots, and iii) a time interval between adjacent time slots. The first communication device generates one or more packets that include: i) an indication of the start time, ii) an indication of the time duration, and iii) an indication of the time interval, and transmits the one or more packets to multiple second communication devices prior to the NDP ranging measurement procedure. During the NDP ranging measurement procedure, the first communication device transmits a downlink NDP transmission to a group of second communication devices, and receives an uplink multi-user NDP transmission from the group of second communication devices.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: April 16, 2019
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Christian R. Berger, Niranjan Grandhe
  • Patent number: 10263738
    Abstract: A method for generating a physical layer (PHY) data unit includes generating a first signal field to include multiple copies of first signal field content, wherein the first signal field content spans one sub-band of a plurality of sub-bands of the PHY data unit, and wherein the multiple copies collectively span the plurality of sub-bands of the PHY data unit; generating a second signal field to include multiple copies of second signal field content, wherein the second signal field content spans multiple ones of the plurality of sub-bands of the PHY data unit, and wherein the multiple copies of the second signal field collectively span the plurality of sub-bands of the PHY data unit; generating a preamble of the PHY data unit to include at least the first signal field and the second signal field; generating the PHY data unit to include at least the preamble.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: April 16, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Yakun Sun, Lei Wang, Jinjing Jiang, Liwen Chu, Hongyuan Zhang
  • Patent number: 10257859
    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.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: April 9, 2019
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10257806
    Abstract: A first communication device allocates respective sub-channels of an orthogonal frequency division multiplexing (OFDM) channel to two or more second communication devices for uplink orthogonal frequency division multiple access (OFDMA) transmission from the two or more second communication devices. A first sub-channel is allocated to a first one of the second communication devices and a second sub-channel is allocated to a second one of the second communication devices. The first communication device provides, to the second communication devices, indications of the respective sub-channels allocated to the second communication devices. The first communication device receives an uplink OFDMA data unit that includes a first OFDM data unit transmitted from the first one of the second communication devices via the first sub-channel, and a second OFDM data unit transmitted from the second one of the second communication devices via the second sub-channel.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: April 9, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Yakun Sun
  • Patent number: 10257328
    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.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 9, 2019
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Sagar A. Tamhane, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10257006
    Abstract: A communication device determines that an extension field should be included in physical layer (PHY) data unit to provide a receiver with more processing time to process data included in the PHY data unit, wherein the extension field is not required to be processed by the receiver. The communication device generates i) a PHY preamble of the PHY data unit, and ii) a PHY data portion of the PHY data unit, the PHY data unit conforming to a first communication protocol. Each orthogonal frequency division multiplexing (OFDM) symbol in the PHY data portion is generated with a first tone spacing, which is a fraction 1/N of a second tone spacing defined by a second communication protocol, wherein N is a positive integer greater than one. The communication device also generates the extension field of the PHY data unit, which is appended to an end of the PHY data portion.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 9, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Yakun Sun, Mingguang Xu, Rui Cao, Hui-Ling Lou
  • Patent number: 10256961
    Abstract: A first communication device receives an uplink orthogonal frequency multiple access (OFDMA) transmission. The uplink OFDMA transmission includes respective transmissions from multiple second communication devices, and the respective transmissions from the multiple second communication devices include indications of respective acknowledgment policies corresponding to the respective transmissions from the multiple second communication devices. The first communication device generates one or more acknowledgment physical layer (PHY) data units to acknowledge at least a portion of the uplink OFDMA transmission, where the one or more acknowledgment PHY data units do not comply with at least one of the acknowledgment policies corresponding to the uplink OFDMA transmission. The first communication device transmits the one or more acknowledgment PHY data units to acknowledge the at least the portion of the uplink OFDMA transmission.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: April 9, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Liwen Chu, Lei Wang, Hongyuan Zhang, Yakun Sun, Jinjing Jiang, Hui-Ling Lou