Patents by Inventor Hui Ling

Hui Ling 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: 10928505
    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.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 23, 2021
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20210051574
    Abstract: Operating a wireless communications network includes transmitting a management frame by a first multi-link entity of a set of entities using a reporting link associated with a first network identifier and a first communication band. The management frame includes first information associated with the first multi-link entity and second information associated with a second link of the set of entities. The second link is associated with a second network identifier.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 18, 2021
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10904825
    Abstract: A method for accessing a shared medium includes receiving, at a first device associated with a first basic service set (BSS), a packet from a second device associated with a second BSS. The packet includes an indication of a duration for which the shared medium is expected to be busy. The method includes setting, at the first device, a first counter for an inter-BSS channel access to the duration in response to the second BSS being different than the first BSS and in response to the duration being greater than a current value of the first counter. The method includes setting, at the first device, a second counter for an intra-BSS channel access to the duration in response to the second BSS being the same as the first BSS and irrespective of whether the duration indicated in the packet is greater than a current value of the second counter.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: January 26, 2021
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20210022217
    Abstract: A color adjusting method for a color light-emitting element is provided. Firstly, a first white light beam is produced by red, green and blue light-emitting units collaboratively, and a second white light beam is produced by a white light-emitting unit. Then, a second chromaticity value corresponding to the second white light beam is acquired. Then, the red, green and blue light-emitting units are controlled to produce a third white light beam according to the second chromaticity value, and a first adjusting parameter is acquired. Then, the white light-emitting unit is controlled to produce a fourth white light beam according to a third luminance value corresponding to the third white light beam, and a second adjusting parameter is acquired. Then, a gray level adjustment process is performed according to the first and second adjusting parameters.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 21, 2021
    Inventors: Ding-Hsiang Pan, Hui-Ling Lin, Chuan-Tai Hsiao, Chun-Han Huang
  • Patent number: 10887837
    Abstract: A method, performed by a first communication device, for transmitting a wireless local area network (WLAN) packet to a WLAN network interface device of a second communication device is described. The second communication device includes a separate wakeup radio (WUR) coupled to the WLAN network interface device. The WLAN packet is generated at the first communication device to include a WUR identifier associated with a neighbor communication device. The WUR identifier is usable by the WUR of the second communication device to identify WUR packets transmitted by the neighbor communication device. The neighbor communication device is different from the first communication device. The WLAN packet is transmitted by the first communication device to the WLAN network interface device of the second communication device.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: January 5, 2021
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10880855
    Abstract: A first communication device determines which one or more types of feedback information, from among a plurality of types of feedback information associated with a range measurement exchange session, a second communication device is to provide to the first communication device in a feedback packet transmitted as part of the range measurement exchange session. The first communication device transmits to the second communication device one or more indications of the determined one or more types of feedback information that the second communication device is to provide to the first communication device in the feedback packet. The first communication device performs the range measurement exchange, including receiving the feedback packet from the second communication device, wherein the feedback packet includes the determined one or more types of feedback information.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: December 29, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Christian R Berger, Niranjan Grandhe, Sudhir Srinivasa, Hui-Ling Lou
  • Publication number: 20200404680
    Abstract: A communication device determines that simultaneous transmission and reception via multiple frequency segments in a WLAN is not permitted. The communication device transmits a first packet in a first frequency segment beginning at a first time, and transmits a second packet in a second frequency segment beginning at a second time that is different than the first time. Transmission of the second packet overlaps in time with transmission of the first packet. In response to having determined that simultaneous transmission and reception via multiple frequency segments is not permitted, the communication device includes in the first packet padding so that an end of transmission of the first packet occurs at a same time as an end of transmission of the second packet.
    Type: Application
    Filed: June 19, 2020
    Publication date: December 24, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU, Rui CAO, Yan ZHANG
  • Patent number: 10873909
    Abstract: A first communication device generates one or more wakeup frames for transmission to one or more second communication devices, and generates a wakeup packet to include the one or more wakeup frames for transmission in respective ones of one or more particular wakeup radio (WUR) operating channels of respective ones of the one or more second communication devices. The respective one or more WUR operating channels are determined by previous negotiation between the first communication device and respective ones of the one or more second communication devices. The first communication device transmits the wakeup packet to the one or more second communication devices, with respective ones of the one or more wakeup frames transmitted in respective ones of the one or more particular WUR operating channels to prompt the respective ones of the one or more second communication devices to transition from a low power state to an active state.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 22, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Rui Cao, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10873878
    Abstract: A first communication device receives one or more aggregate medium access control (MAC) data units from respective one or more second communication devices, and generates one or more acknowledgement information fields. A first acknowledgement information field corresponds to a particular second communication device and includes a length indication that indicates a length of an acknowledgement field and the acknowledgment field of the indicated length. The length of the acknowledgement field is selected from a subset of predetermined lengths, among a set of predetermined lengths, the subset including multiple predetermined lengths that do not exceed a buffer size determined based on an acknowledgement setup procedure previously conducted between the first communication device and the particular second communication device.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 22, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10862549
    Abstract: A first communication device allocates respective frequency sub-channels for subsequent orthogonal frequency division multiple access (OFDMA) communications with two or more second communication devices, including allocating a first frequency sub-channel, a second frequency sub-channel, and a third frequency sub-channel between the first frequency sub-channel and the second frequency sub-channel. The first communication device generates and transmits a first downlink OFDMA data unit configured to prompt the two or more second communication devices to transmit as part of a multi-user transmission that spans the first frequency sub-channel, the second frequency sub-channel, and the third frequency sub-channel. The first communication device receives an uplink OFDMA transmission and determines that the uplink OFDMA transmission did not include a transmission within the third frequency sub-channel.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 8, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Hongyuan Zhang, Hui-Ling Lou, Yakun Sun, Jinjing Jiang
  • Patent number: 10863502
    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.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: December 8, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10856228
    Abstract: Embodiments described herein provide a method for transmitting a wake-up radio signal to low power devices in a wireless local area network. At a wireless access point, data for transmission to one or more lower power wireless devices is received. A wake-up radio packet is generated, including a wake-up data frame destined for the one or more lower power wireless devices. The wake-up data frame is configured with: a type field indicative of a type of the wake-up data frame, and a first identifier field indicative of information corresponding to the one or more lower power wireless devices. The wake-up radio packet is transmitted to the one or more lower power wireless devices to turn on wireless receivers at the one or more low power wireless devices prior to initiating data transmission with the one or more lower power wireless devices.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: December 1, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10856349
    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: April 29, 2019
    Date of Patent: December 1, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20200374754
    Abstract: A first communication device determines whether a specific wireless local area network (WLAN) communication link, among a plurality of WLAN communication links corresponding to respective frequency segments, has been negotiated with a second communication device for a first traffic stream. In response to determining that the specific WLAN communication link has been negotiated for the first traffic stream, the first communication device transmits packets in the first traffic stream only via the specific WLAN communication link. In response to determining that no WLAN communication link has been negotiated with the second communication device for the first traffic stream, the first communication device transmits packets in the first traffic stream via multiple WLAN communication links corresponding to different frequency segments.
    Type: Application
    Filed: May 29, 2020
    Publication date: November 26, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU
  • Publication number: 20200374802
    Abstract: A first communication device determines whether a group-addressed frame is to be transmitted via multiple WLAN communication links. In response to determining that the group-addressed frame is to be transmitted via the multiple WLAN communication links, the first communication device i) transmits a first instance of the group-addressed frame via a first WLAN communication link, the first instance of the group-addressed frame having a sequence number set to a value, and ii) transmits a second instance of the group-addressed frame via a second WLAN communication link, the second instance of the group-addressed frame having a sequence number set to the value. In response to determining that the group-addressed frame is to be transmitted via only a single WLAN communication link, the first communication device transmits the group-addressed frame only via the single WLAN communication link.
    Type: Application
    Filed: May 29, 2020
    Publication date: November 26, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU
  • Publication number: 20200374801
    Abstract: A first communication device determines whether a second communication device is in a power save mode with respect to a first communication link among a plurality of communication links that correspond to respective frequency segments, and determines whether the second communication device is in a power save mode with respect to a second communication link among the plurality of communication links. The second communication device is permitted to be in the power save mode with respect to the second communication link when the second communication device is not in the power save mode with respect to the first communication link, and vice versa. The first communication device communicates with the second communication device in accordance with the power save modes of the second communication device with respect to the first and second communication links.
    Type: Application
    Filed: May 26, 2020
    Publication date: November 26, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU
  • Patent number: 10848275
    Abstract: A first communication device generates and transmits a first communication frame corresponding to a request to participate in a block acknowledgment procedure. The first communication frame includes: a first field indicating a number of buffers requested to be allocated at a second communication device for buffering data units to be transmitted by the first communication device, and a second field indicating a first maximum bitmap length supported by the first communication device. The first communication device receives a second communication frame corresponding to a response to the first communication frame. The second communication frame includes: a third field indicating a number of buffers allocated at the second communication device for buffering the data units transmitted by the first communication device, and a fourth field indicating a second maximum bitmap length supported by the second communication device.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: November 24, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Ken Kinwah Ho, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10849024
    Abstract: A communication device sets a first channel access timer to a first duration in which at least a first portion of a communication channel is expected to be busy, the first timer corresponding to a first one of a plurality of component channels of the communication channel. The communication device also sets a second channel access timer to a second duration in which at least a second portion of the communication channel is expected to be busy, the second timer corresponding to a second one of the plurality of component channels. The communication device counts down the first timer and the second timer. When at least one of the first timer and the second timer reaches zero, the communication device determines whether one or more of the component channels are idle, and transmits at least one signal in at least one of the component channels determined to be idle.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: November 24, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10848288
    Abstract: A first communication device prompts a plurality of second communication devices to transmit, during a contiguous time period reserved for a range measurement exchange, respective first null data packets (NDPs) at respective times. The first communication device receives first NDPs from at least some of the second communication devices during the contiguous time period, and transmits one or more second NDPs to the plurality of second communication devices. The first communication device uses reception of the first NDPs and transmission of the one or more second NDPs to determine respective ranges between the first communication device and respective second communication devices.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 24, 2020
    Assignee: NXP USA, INC.
    Inventors: Liwen Chu, Hongyuan Zhang, Christian R. Berger, Niranjan Grandhe, Sudhir Srinivasa, Hui-Ling Lou
  • Patent number: 10849080
    Abstract: A method is described. A trigger medium access control protocol data unit (MPDU) is generated at a first communication device. The trigger MPDU is configured to solicit a second communication device to transmit a trigger-based data unit to the first communication device. A transmit power indication in the trigger MPDU is set to indicate that a transmit power level of the trigger-based data unit is to be selected by the second communication device. The trigger MPDU is transmitted from the first communication device to the second communication device.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: November 24, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou