Patents by Inventor Hui-Ling Lou

Hui-Ling Lou 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: 11979870
    Abstract: A first communication device generates and transmits a frame that is configured to cause one or more second communication devices in a wireless local area network (WLAN) to refrain from transmitting during a set of repeating time segments, and the frame is generated to include an indication of a time period of the time segments in the set of repeating time segments, the time period being less than a duration of a beacon interval of the WLAN such that multiple ones of the time segments occur within one beacon interval. Alternatively, the frame is configured to cause one or more second communication devices in the WLAN to refrain from transmitting during a time segment that begins in conjunction with an end of transmission of i) the frame or ii) a packet that includes the frame, and the frame is generated to include an indication of a time duration of the time segment.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: May 7, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Yi-Ling Chao, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20240146590
    Abstract: A communication device selects a frequency bandwidth via which a physical layer (PHY) protocol data unit (PPDU) will be transmitted in a vehicular communication network, and generates, the PPDU i) according to a downclocking ratio of 1/2, and ii) based on an orthogonal frequency division multiplexing (OFDM) numerology defined by an IEEE 802.11ac Standard. In response to the selected frequency bandwidth being 10 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 20 MHz PPDUs. In response to the selected frequency bandwidth being 20 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 40 MHz PPDUs.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Inventors: Rui CAO, Hongyuan ZHANG, Hui-Ling LOU, Xiayu ZHENG
  • Patent number: 11973545
    Abstract: A first access point (AP), which is associated with one or more first client stations, generates an announcement frame that announces a coordinated multi-user (MU) transmission involving multiple APs including the first AP and one or more second APs. Each of the second APs is associated with a respective one or more second client stations. The announcement frame is generated to indicate one or more respective sets of communication parameters to be used by the one or more second APs for communicating with the respective one or more second client stations during the coordinated MU transmission. The first AP transmits the announcement frame to the one or more second APs to initiate the coordinated MU transmission, and participates in the coordinated MU transmission while the one or more second APs also participate in the coordinated MU transmission.
    Type: Grant
    Filed: December 29, 2022
    Date of Patent: April 30, 2024
    Assignee: Marvell Asia Pte Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20240129923
    Abstract: A first communication device generates a first physical layer (PHY) data unit that includes information indicating a capability to use a channel bandwidth greater than a maximum channel bandwidth of the first communication device, and transmits the first PHY data unit to a second communication device during an association process with the second communication device. The first communication device generates a second PHY data unit that includes information indicating a capability to use at most the maximum channel bandwidth of the first communication device, and transmits the second PHY data unit to the second communication device when the first communication device is associated with the second communication device.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 18, 2024
    Inventors: Liwen CHU, Lei WANG, Hongyuan ZHANG, Yakun SUN, Jinjing JIANG, Hui-Ling LOU
  • Patent number: 11956741
    Abstract: A communication device generates a first packet and a second packet. The first packet includes a first physical layer (PHY) preamble having: a first legacy signal field (L-SIG) having first duration information that indicates a first duration of the first packet; and first non-legacy signal field information having first modulation information that indicates a first modulation used in the first packet. The second packet includes a second PHY preamble having: a second L-SIG having second duration information that indicates a second duration of the second packet, wherein the second duration is different than the first duration; and second non-legacy signal field information having second modulation information that indicates a second modulation used in the second packet, wherein the second modulation is different than the first modulation. The communication device simultaneously transmits the first packet in a first frequency segment and the second packet in a second frequency segment.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: April 9, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Hongyuan Zhang, Liwen Chu, Yan Zhang, Hui-Ling Lou
  • Patent number: 11909570
    Abstract: A communication device determines that simultaneous transmission/reception via multiple frequency segments in a WLAN is not permitted, and transmits a first packet in a first frequency segment and a second packet in a second frequency segment. The communication device determines that an end of the first packet does not align with an end of the second packet and that the first packet and/or the second packet prompts transmission of a respective response packet a defined time period after transmission of the corresponding one of the first packet and the second packet. In response to having determined that simultaneous transmission/reception is not permitted and that the first packet and/or the second packet prompts transmission of the respective response packet, the communication device pads the first packet and/or the second packet so that an end of transmission of the first packet is aligned with an end of transmission of the second packet.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: February 20, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Rui Cao, Yan Zhang
  • Patent number: 11910240
    Abstract: A first communication device generates a beacon frame that includes i) parameters of a broadcast target wake time (TWT) schedule and ii) information regarding a quantity of client stations that have currently joined the broadcast TWT schedule. The first communication device transmits the beacon frame to inform one or more second communication devices of i) the parameters of the broadcast TWT schedule and ii) the quantity of client stations that have currently joined the broadcast TWT schedule.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: February 20, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11889488
    Abstract: A first communication device determines that a trigger frame and another frame are to be transmitted to at least a second communication device. The first communication device determines whether the second communication device announced support of aggregation of buffer status report (BSRP) trigger frames with additional frames. In response to the first communication device determining that the second communication device announced support of aggregation of BSRP trigger frames with additional frames, the first communication device generates an aggregate media access control protocol data unit (A-MPDU) to include the BSRP trigger frame and the other frame, and transmits the A-MPDU within a packet. In response to the first communication device determining that the second communication device did not announce support of aggregation of BSRP trigger frames with additional frames, the first communication device transmits a packet having only the BSRP trigger frame.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: January 30, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Xiayu Zheng, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11877274
    Abstract: A communication device generates a first packet to include a first indication of one or more first frequency subchannels in a first frequency segment that will be utilized to transmit the first packet. The communication device also generates a second packet to include a second indication of one or more second frequency subchannels in a second frequency segment that will be utilized to transmit the second packet. The communication device simultaneously transmits the first packet via the first frequency segment and the second packet via the second frequency segment.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: January 16, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20240014938
    Abstract: A first communication device transmits first bitmap length capability information for the first communication device regarding block acknowledgment procedures, and receives second bitmap length capability information for a second communication device regarding block acknowledgment procedures. The first communication device performs a block acknowledgment procedure, including setting a block acknowledgment transmission window size for the block acknowledgment procedure based on the second bitmap length capability information for the second communication device, and a determination of whether a block acknowledgement frame used in the block acknowledgment procedure is a compressed block acknowledgement (C-BA) frame or a multi-station (multi-STA) block acknowledgement frame.
    Type: Application
    Filed: August 24, 2023
    Publication date: January 11, 2024
    Inventors: Liwen CHU, Ken Kinwah HO, Hongyuan ZHANG, Hui-Ling LOU
  • Patent number: 11870625
    Abstract: A communication device selects a frequency bandwidth via which a physical layer (PHY) protocol data unit (PPDU) will be transmitted in a vehicular communication network, and generates, the PPDU i) according to a downclocking ratio of 1/2, and ii) based on an orthogonal frequency division multiplexing (OFDM) numerology defined by an IEEE 802.11ac Standard. In response to the selected frequency bandwidth being 10 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 20 MHz PPDUs. In response to the selected frequency bandwidth being 20 MHz, the PPDU is generated according to the downclocking ratio of 1/2 and based on the OFDM numerology defined by the IEEE 802.11ac Standard for 40 MHz PPDUs.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: January 9, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Hongyuan Zhang, Hui-Ling Lou, Xiayu Zheng
  • Patent number: 11871348
    Abstract: A wireless network interface of a first client station negotiates with an access point a first component channel of an operating channel via which the first client station is to receive wakeup frames from the access point. A wakeup radio of the first client station receives a wakeup packet from the access point. The wakeup packet spans the operating channel, which comprises at least four component channels, and one or more of the component channels within the operating channel are punctured so that the access point does not transmit the wakeup packet in the one or more component channels that are punctured. The wakeup packet includes a first wakeup frame for the first client station in the first component channel and one or more respective second wakeup frames for one or more second client stations in one or more respective second component channels.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: January 9, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Rui Cao, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11870579
    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.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: January 9, 2024
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Yakun Sun, Hongyuan Zhang, Liwen Chu, Hui-Ling Lou
  • Publication number: 20230421295
    Abstract: A preamble of physical layer (PHY) data unit includes a first legacy portion and a first non-legacy portion that follows the first legacy portion. The first non-legacy portion includes i) a first orthogonal frequency division multiplexing (OFDM) symbol that immediately follows the first legacy portion and that is modulated using binary phase shift keying (BPSK), and ii) a second OFDM symbol that immediately follows the first OFDM symbol and that is modulated using BPSK modulation rotated by 90 degrees (Q-BPSK). The modulation of the first and second OFDM symbols indicates to a receiver device that conforms to a first communication protocol that the data unit conforms to the first communication protocol. The first OFDM symbol being modulated using BPSK modulation causes a receiver device that conforms to a second communication protocol to determine that the PHY data unit conforms to a third communication protocol.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Inventors: Hongyuan ZHANG, Hui-Ling LOU, Rohit U. NABAR, Sudhir SRINIVASA, Mao YU, Raja BANERJEA
  • Patent number: 11855818
    Abstract: In a method for adapting an orthogonal frequency division multiplexing (OFDM) numerology configuration for use in a communication network one or more OFDM numerology configurations are adaptively selected at a first communication device to be used in communication with one or more second communication devices. Adaptively one or more OFDM numerology configurations includes selecting at least one combination of two or more of (i) a guard interval duration, (ii) a tone spacing, (iii) a starting location of the selected guard interval duration, and (iv) a starting location of the selected tone spacing. A physical layer (PHY) data unit to be transmitted to a second communication device is generated at the first communication device. The PHY data unit is generated using one of the one or more adaptively selected OFDM numerology configurations to generate OFDM symbols of at least a portion of the PHY data unit.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 26, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Yakun Sun, Hongyuan Zhang, Mingguang Xu, Hui-Ling Lou
  • Patent number: 11849453
    Abstract: A first communication device generates a first physical layer (PHY) data unit that includes information indicating a capability to use a channel bandwidth greater than a maximum channel bandwidth of the first communication device, and transmits the first PHY data unit to a second communication device during an association process with the second communication device. The first communication device generates a second PHY data unit that includes information indicating a capability to use at most the maximum channel bandwidth of the first communication device, and transmits the second PHY data unit to the second communication device when the first communication device is associated with the second communication device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 19, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Lei Wang, Hongyuan Zhang, Yakun Sun, Jinjing Jiang, Hui-Ling Lou
  • Patent number: 11832315
    Abstract: A communication device performs a first backoff operation to determine when the communication device can begin a first simultaneous transmission via multiple channel segments. The first backoff operation includes counting down a first backoff timer in connection with a first channel segment. In response to the first backoff timer expiring, the communication device performs the first simultaneous transmission via the multiple channel segments. After performing the first simultaneous transmission via the multiple channel segments, the communication device performs a second backoff operation to determine when the communication device can begin a second simultaneous transmission via the multiple channel segments. The second backoff operation includes counting down a second backoff timer in connection with a second channel segment. In response to the second backoff timer expiring, the communication device performs the second simultaneous transmission via the multiple channel segments.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: November 28, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 11818799
    Abstract: A first communication device selects respective sets of medium access control (MAC) layer data units for transmission via respective channel segments of a communication channel, where the first channel segment and the second channel segment are non-overlapping frequency segments of the communication channel. The first communication device generates respective aggregate MAC layer data units to include the respective sets of MAC layer data units, generates respective physical (PHY) layer data units to include the respective aggregate MAC layer data units, and transmits the respective PHY layer data units in the respective channel segments to one or more second communication devices, where transmissions of the respective aggregate MAC layer data units in the respective channel segment overlap in time.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: November 14, 2023
    Assignee: Marvell Asia Pte Ltd
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou, Po Wei Tan, Rui Cao, Ken Kinwah Ho
  • Publication number: 20230345552
    Abstract: An access point manages a first wireless local area network (WLAN) in a 6 GHz radio frequency (RF) band and ii) a second WLAN operating in another RF band. The access point generates a physical layer (PHY) data unit to include a management frame having i) first information indicating first network parameters of the first WLAN, and ii) second information indicating second network parameters of the second WLAN. The AP transmits the PHY data unit in the other RF band to provide, to any client stations that are operating in the other RF band and that are also capable of operating in the 6 GHz band: the first information indicating the first network parameters of the first WLAN operating in the 6 GHz RF band to assist the any client stations that are operating in the other RF band with joining the first WLAN operating in the 6 GHz RF band.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU
  • Patent number: 11799523
    Abstract: In a method for simultaneously communicating with multiple communication devices in a wireless local area network a first communication device receives a plurality of uplink data units simultaneously transmitted by multiple second communication devices. The first communication device generates an acknowledgement data unit to acknowledge receipt of the multiple data units simultaneously transmitted by multiple second communication devices. The acknowledgement data unit includes (i) an indication that indicates that the acknowledgement data unit is intended for multiple second communication devices and (ii) respective acknowledgement information for the multiple second communication devices. The acknowledgement data unit is transmitted from the first communication device to the multiple second communication devices.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: October 24, 2023
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou