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: 10694523
    Abstract: A first communication device in a first wireless network determines a transmit power for transmitting a first packet during a spatial reuse opportunity corresponding to a transmission in a second wireless network. Determining the transmit power includes using a spatial reuse parameter, indicative of an acceptable interference level in the second wireless network, included in a second packet transmitted by a second communication device in the second wireless network. The first communication device generates the first packet to include information to indicate to a third communication device, that is an intended receiver of the first packet, to not transmit an acknowledgment of the first packet according to a normal acknowledgment procedure during the spatial reuse opportunity.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: June 23, 2020
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10694546
    Abstract: A first communication device receives an indication that a second communication device permits a duplex transmission while the second communication device transmits during a transmit opportunity period (TXOP), where duplex transmissions involve simultaneously transmitting and receiving via a same wireless frequency band. The indication is included in a media access control layer (MAC) protocol data unit (MPDU). In response to receiving the indication that the second communication device permits the duplex transmission, the first communication device determines that the first communication device is permitted to perform the duplex transmission during the TXOP. The first communication device receives a first packet from the second communication device during the TXOP, and transmits a second packet while the first communication device is receiving the first packet.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 23, 2020
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20200196385
    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: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Lei Wang, Liwen Chu, Jinjin Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10681578
    Abstract: A first wireless communication device includes a timing module to provide a timing synchronization function (TSF) time. A fine timing measurement module is to transmit a first request to perform a fine timing measurement to determine a distance between the first wireless communication device and a second wireless communication device. The first request includes a first value of the TSF time at which to start a burst period of the fine timing measurement, and the first value is determined in accordance with the TSF time provided by the timing module. The fine timing measurement module is further to receive a first response as transmitted from the second wireless communication device in response to the first request and transmit a second request to start the burst period at a TSF time indicated by the first value. The first response includes the first value of the TSF time.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: June 9, 2020
    Assignee: Marvell Asia Pte., Ltd.
    Inventors: Liwen Chu, Sagar A. Tamhane, Sarang Shrikrishna Wagholikar, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10673547
    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 determine a transmission parameter adjustment for the transceiver, detect that the transmission parameter adjustment has a potential to cause a collision to an overlapping basic service set (OBSS), adjust timings for transmission control to avoid the collision, and control the transceiver based on the determined transmission parameter adjustment and the adjusted timings for transmission control.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: June 2, 2020
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Lei Wang, Jinjin Jiang, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10667175
    Abstract: Embodiments described herein provide a method for fragmenting and reassembling data frames on a medium access control (MAC) layer in a wireless local area network. A datagram is received from an application running on a first network device, for transmission over a wireless communication link in the wireless local area network. A negotiation request is initiated with a second network device for determining whether both the first network device and the second network device have enhanced directional multi-gigabit capability (EDMG) for data segmentation and reassembly. When both devices have EDMG capability and the size of the datagram exceeds the maximum size defined by the wireless local area network transmission protocol, the datagram is segmented into a plurality of transmission data units on the MAC layer.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: May 26, 2020
    Assignee: NXP USA, Inc.
    Inventors: Jinjing Jiang, Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20200162904
    Abstract: A method for communication in a WLAN includes onboarding, authenticating, and configuring respective BSSs of multiple access points in a multi-AP network. Respective cryptographic keys are generated for the multi-AP agents in the network by carrying out a handshaking procedure between the multi-AP controller and the multi-AP agents over the backhaul network. Upon detecting a predefined rekeying event in communications between the multi-AP controller and any given multi-AP agent, a new cryptographic key is generated for the given multi-AP agent by repeating the handshaking procedure, and applying the new cryptographic key in encrypting and authenticating messages following the rekeying event.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 21, 2020
    Inventors: Jinjing Jiang, Manish Kumar, Hui-Ling Lou
  • Patent number: 10656256
    Abstract: During a service period (SP) for a ranging measurement signal exchange between a first communication device and one or more second communication devices, the first communication device receives respective first null data packets (NDPs) from the one or more second communication devices, and transmits respective second NDPs to the one or more second communication devices. The first communication device transmits, during the SP, respective first ranging measurement feedback packets to the one or more second communication devices to allow each of the one or more second communication devices to determine a time-of-flight between the first communication device and the second communication device and/or receives, during the SP, respective second ranging measurement feedback packets from the one or more second communication devices to allow the first communication device to determine respective times-of-flight between the first communication device and the one or more second communication devices.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 19, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Sagar Tamhane, Hongyuan Zhang, Christian Berger, Niranjan Grandhe, Sudhir Srinivasa, Hui-Ling Lou
  • Patent number: 10659189
    Abstract: A first communication device determines an amount of data queued at the first communication device for transmission. When a control field is to be generated according to a first format, the first communication device determines a scaling value (SV) and an unscaled value (UV) corresponding to the determined amount of data queued for transmission such that a result of SV multiplied by BV indicates the determined amount of data queued for transmission, and generates the control field to include i) a scaling factor subfield set to indicate the SV, and ii) an unscaled queue size subfield set to indicate the BV. When the control field is to be generated according to a second format, the first communication generates the control field to include a queue size subfield set to indicate the determined amount of data queued for transmission and such that the control field does not include the scaling factor subfield.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 19, 2020
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10660105
    Abstract: Embodiments described herein provide a method for establishing multi-user operation with duplex medium access control in a wireless local area network. Specifically, a trigger frame is transmitted to one or more client stations in a wireless local area network. In response to transmitting the trigger frame, one or more uplink data packets are received from the one or more client stations. It is then determined whether the one or more client stations support duplex operation. A downlink data packet configured in a multi-user data format is transmitted to at least one destined client station that supports duplex operation while simultaneously receiving the one or more uplink data packets from the one or more client stations.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 19, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20200145145
    Abstract: A method for acknowledging a first medium access control (MAC) service data unit (MSDU) is described. A first aggregate MAC protocol data unit (A-MPDU) of a first orthogonal frequency division multiple access (OFDMA) data unit is received at a first communication device from a second communication device. The first A-MPDU includes a first fragment of a plurality of fragments of the first MSDU. A second A-MPDU of a second OFDMA data unit is received at the first communication device from the second communication device. The second A-MPDU includes a second fragment of the plurality of fragments and the second fragment is an end fragment of the plurality of fragments. A fragment acknowledgment data unit is generated by the first communication device to acknowledge receipt of each of the plurality of fragments of the first MSDU. The fragment acknowledgment data unit is caused to be transmitted to the second communication device.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Liwen CHU, Lei WANG, Jinjing JIANG, Hongyuan ZHANG, Hui-Ling LOU
  • Publication number: 20200146011
    Abstract: A first communication device generates respective media access control (MAC) protocol data units (MPDUs) that include respective data for a respective second communication devices, and determines respective resource units (RUs) via which at least some of the second communication devices are to transmit as part of an uplink (UL) orthogonal frequency division multiple access (OFDMA) physical layer (PHY) transmission to respectively acknowledge receipt of the respective MPDUs. The first communication device generates respective control frames that are configured to prompt the at least some of the second communication devices to transmit the UL OFDMA PHY transmission, and that include indicators of the RUs via which the at least some of the second communication devices are to transmit as part of the UL OFDMA PHY transmission. The first communication device generates and transmits a single multi user (MU) PHY data unit that includes i) the MPDUs, and ii) the control frames.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Lei WANG, Hui-Ling LOU, Jinjing JIANG
  • Patent number: 10641887
    Abstract: An access point (AP) device of a wireless communication network determines that an unassociated client station requests to participate in a ranging measurement procedure with the AP device, and determines a preliminary network ID for uses by the unassociated client station during a ranging measurement session and while the unassociated client station remains unassociated with the wireless communication network. The AP device transmits a packet having the preliminary network ID, and after transmitting the packet having the preliminary network ID, participates in a multi-user (MU) null data packet (NDP) ranging measurement session with a plurality of client stations that includes the unassociated client station.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 5, 2020
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10631187
    Abstract: Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a processing circuit. The transceiver circuit is configured to transmit and receive wireless signals. The processing circuit is configured to generate a request frame using an extended control frame format to indicate an enhanced fine timing measurement (EFTM) based range measurement to a second apparatus, cause the transceiver circuit to transmit, when a transmission opportunity (TXOP) is granted to the apparatus, wireless signals carrying the request frame to start the EFTM based range measurement that exchanges null data packets with the second apparatus, and determine a round trip time based on departure and arrival timing information of the null data packets.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: April 21, 2020
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Sagar A. Tamhane, Christian R. Berger, Niranjan Grandhe, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10624131
    Abstract: A client station receives from an access point (AP) a downlink packet that includes a trigger frame that is configured to prompt the client station to transmit an uplink packet to the AP. The trigger frame includes an indication of whether the client station is required to perform a channel sensing procedure to determine if one or more subchannels are not idle prior to transmitting the uplink packet. In response to the trigger frame indicating that the client station is required to perform the channel sensing procedure: the client station does not transmit the uplink packet in response to determining that the one or more subchannels are not idle. In response to the trigger frame indicating that the client station is not required to perform the channel sensing procedure, the client station transmits the uplink packet without measuring the one or more energy levels in the one or more subchannels.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: April 14, 2020
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Lei Wang, Jinjing Jiang, Yakun Sun, Hongyuan Zhang, Hui-Ling Lou
  • Publication number: 20200107318
    Abstract: Multiple trigger frames are generated at a first communication device to trigger an uplink orthogonal frequency multiple access (OFDMA) transmission by multiple second communication devices. The multiple trigger frames include a broadcast trigger frame that includes information to indicate transmission parameters for a first subset of the second communication devices, and one or more unicast trigger frames, each of the one or more unicast trigger frame including information to indicate transmission parameters for a particular second communication device in a second subset of the second communication devices. The broadcast trigger frame is transmitted, in a first frequency portion of a downlink OFDMA transmission, to the first subset of the second communication devices, and respective unicast trigger frames are transmitted, in respective second frequency portions of the downlink OFDMA transmission, to the second subset of the second communication devices.
    Type: Application
    Filed: August 5, 2019
    Publication date: April 2, 2020
    Inventors: Liwen CHU, Yakun SUN, Hongyuan ZHANG, Lei WANG, Jinjing JIANG, Hui-Ling LOU
  • Publication number: 20200106489
    Abstract: A first communication device transmits a trigger frame transmission to multiple second communication devices to prompt the multiple second communication devices to simultaneously transmit in multiple communication sub-channels. The first communication device receives one or more transmissions from one or more of the second communication devices in less than all of the communication sub-channels. The first communication device generates acknowledgment information for the one or more transmissions from the one or more of the second communication devices, and transmits the acknowledgment information via all of communication sub-channels.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Liwen CHU, Lei WANG, Hongyuan ZHANG, Hui-Ling LOU, Yakun SUN, Jinjing JIANG
  • Publication number: 20200107393
    Abstract: A method for operation of a first communication device in a wireless local area network (WLAN) communication channel, having a plurality of component channels, between the first communication device and a second communication device is described. A first physical layer (PHY) protocol data unit (PPDU) and a second PPDU, distinct from the first PPDU, are generated. The first PPDU and second PPDU are transmitted simultaneously to the second communication device over the WLAN communication channel, including: transmitting the first PPDU via a first component channel within a first radio frequency (RF) channel segment that occupies a first frequency bandwidth, and transmitting the second PPDU via a second component channel within a second RF channel segment that occupies a second frequency bandwidth that does not overlap the first frequency bandwidth segment, and is separated from the first frequency bandwidth segment by a frequency gap.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Liwen CHU, Hongyuan ZHANG, Hui-Ling LOU, Yi-Ling CHAO
  • Patent number: 10595338
    Abstract: A communication device determines, in connection with a prior uplink multi-user (UL MU) communication in which the communication device participated, whether the communication device is to use one or more first channel access parameters, or one or more second channel access parameters for accessing a communication medium for a single user (SU) transmission by the communication device, where using the one or more first channel access parameters is associated with a greater probability of obtaining access to the communication medium as compared to using the one or more second channel access parameters. Depending on the determination made, the communication device uses the one or more first channel access parameters, or the one or more second channel access parameters to attempt to access the communication medium. In response to accessing the communication medium, the communication device transmits the SU transmission via the communication medium.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 17, 2020
    Assignee: NXP USA, Inc.
    Inventors: Jinjing Jiang, Liwen Chu, Lei Wang, Yakun Sun, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 10595361
    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 23, 2019
    Date of Patent: March 17, 2020
    Assignee: NXP USA, Inc.
    Inventors: Lei Wang, Liwen Chu, Jinjin Jiang, Hongyuan Zhang, Hui-Ling Lou