Patents by Inventor Liwen Chu

Liwen Chu 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).

  • Publication number: 20240114553
    Abstract: An AP receives a frame comprising an indication of a restricted target wake up time schedule service period (r-TWT SP) from a wireless device. The AP one or more of adjusts an r-TWP SP of the AP based on the indication of the r-TWT SP indicated in the received frame and announcing that an STA associated with the AP is to terminate a transmit opportunity (TXOP) before the r-TWT SP indicated in the received frame begins.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 4, 2024
    Inventors: Liwen Chu, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240114436
    Abstract: A method of broadcasting a beacon by a relay device in a basic service set, including: receiving an announcement from a first device indicating whether the relay device is to forward a received beacon to a second device; receiving a beacon from the first device; and forwarding the beacon to the second device based upon the announcement.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 4, 2024
    Inventors: Liwen Chu, Rui Cao, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240107604
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a wireless transceiver configured to receive a first frame from a first wireless access point (AP) for multi-AP coordination that is not associated with the wireless device and a second frame from a second wireless AP for multi-AP coordination that is associated with the wireless device and a controller configured to set a network allocation vector (NAV) timer of the wireless device to a non-zero value in response to the first frame and the second frame. The wireless transceiver is further configured to transmit a physical protocol data unit (PPDU) to the second wireless AP even if the NAV timer of the wireless device is non-zero.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 28, 2024
    Inventors: Kiseon Ryu, Liwen Chu, Rui Cao, Hongyuan Zhang, Huizhao Wang
  • Patent number: 11943665
    Abstract: Various embodiments relate to a method for power save operation by a non-access point (non-AP) multi-link device (MLD), wherein a plurality of links are established between the non-AP MLD and an AP MLD, including: setting, by the non-AP MLD, a QoS capability for a first access category to a first state on all links of the plurality of links that the non-AP MLD operates; transmitting, by the non-AP MLD, a first management frame to the AP MLD, wherein the first management frame is used to request a multi-link setup with the AP MLD, and wherein the first management frame includes a first element that comprises the setting of the QoS capability for the first access category; receiving, by the non-AP MLD, a second management frame from the AP MLD, wherein the second management frame includes information for an association ID (AID) that corresponds to the non-AP MLD, wherein the AID is assigned to the non-AP MLD regardless of the number of links in the plurality of links; and receiving, by the non-AP MLD, a third m
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 26, 2024
    Assignee: NXP USA, Inc.
    Inventors: Young Hoon Kwon, Liwen Chu, Hongyuan Zhang
  • Publication number: 20240098786
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless relay device includes a wireless transceiver configured to receive, from a first wireless device, a first multi-station (STA) block acknowledgement (BA) frame, and a controller configured to generate a second multi-STA BA frame in response to the first multi-STA BA frame. The wireless transceiver is further configured to transmit the second multi-STA BA frame to a second wireless device.
    Type: Application
    Filed: September 5, 2023
    Publication date: March 21, 2024
    Inventors: Kiseon Ryu, Liwen Chu, Rui Cao, Hongyuan Zhang
  • Publication number: 20240097838
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a method includes selecting backoff 20 MHz channels of an operating channel bandwidth (BW) of a Basic Service Set (BSS), and announcing to a second wireless device the operating channel BW of the BSS for use in communicating between the wireless device and the second wireless device, subchannels of the operating channel bandwidth, and backoff 20 MHz channels of each subchannel, wherein one subchannel is a primary subchannel and one subchannel is a non-primary subchannel. A data unit is transmitted to the second wireless device in a backoff 20 MHz channel of the non-primary subchannel.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 21, 2024
    Inventors: Liwen Chu, Kiseon Ryu, Hongyuan Zhang, Rui Cao
  • Patent number: 11937230
    Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves generating a Physical Layer Protocol Data Unit (PPDU) that includes a resource unit (RU), wherein a size of the RU is less than a signal bandwidth and wherein data corresponding to the RU is distributed onto a disjoint set of subcarriers included in a frequency unit, and transmitting the PPDU using the disjoint set of subcarriers in accordance with a power spectrum density (PSD) limit.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: March 19, 2024
    Assignee: NXP USA, Inc.
    Inventors: Rui Cao, Hongyuan Zhang, Yan Zhang, Liwen Chu, Hari Ram Balakrishnan, Sudhir Srinivasa
  • Patent number: 11924823
    Abstract: One example discloses a first-device: wherein the first-device is configured to be coupled to a second-device over an IEEE 802.11 communications link; and wherein the first-device is configured to, store a current setup between the first-device and the second-device; identify a unique identifier of the second-device; transmit a request frame to a third-device; wherein at least one of the second-device and third-device is a multi-link-device (MLD); wherein the request frame is configured to request an association with the third-device and includes the unique identifier of the second-device; receive a response frame from the third-device; and wherein the response frame includes an indication that request was successful.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: March 5, 2024
    Assignee: NXP USA, Inc.
    Inventors: Young Hoon Kwon, Liwen Chu, Hongyuan Zhang, Huiling Lou
  • Patent number: 11924668
    Abstract: Various embodiments relate to a method performed by a first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, including: announcing by the first device original capabilities to the second device; receiving an announcement of capabilities from the second device; receiving frames from the second device in PHY Protocol Data Units (PPDUs) following the first protocol and the second protocol; announcing by the first device a change in its capabilities to the second device; and receiving frames from the second device in PPDUs transmitted using the changed capabilities following the first protocol and the second protocol, wherein the change in the capabilities includes a change in a one of a puncture parameter, bandwidth parameter, mode and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: March 5, 2024
    Assignee: NXP USA, Inc.
    Inventors: Liwen Chu, Young Hoon Kwon, Hongyuan Zhang, Huiling Lou, Rui Cao
  • Publication number: 20240072924
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless relay device includes a wireless transceiver configured to receive, from a first wireless device, communications data, and a controller configured to determine whether to forward the received communications data to a second wireless device.
    Type: Application
    Filed: August 30, 2023
    Publication date: February 29, 2024
    Inventors: Liwen Chu, Rui Cao, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240064705
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to generate a beacon frame and a beacon extension frame that follows the beacon frame and a wireless transceiver configured to transmit the beacon frame and the beacon extension frame to devices that are compatible with a wireless communications protocol. The beacon frame carries an indication that the beacon extension frame follows the beacon frame.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 22, 2024
    Inventors: Liwen Chu, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240064800
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a wireless transceiver configured to communicate within a transmit opportunity (TXOP), where the wireless transceiver is further configured to receive a low latency (LL) buffered frame indication from a first wireless device with an inter frame space that is equal to a Short Interframe Spacing (SIFS), and a controller configured to implement an inter frame space that is bigger than the SIFS between transmission of two consecutive frames through the wireless transceiver.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 22, 2024
    Inventors: Liwen Chu, Kiseon Ryu, Hongyuan Zhang, Huizhao Wang
  • 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
  • Publication number: 20240056974
    Abstract: A method of managing power in a first wireless device associated with an additional wireless device includes receiving power management information for a first link of the first wireless device via any of a plurality of links of the first wireless device. Power consumption of the first link of the first wireless device is then managed, based on the power management information that was received from any of the links.
    Type: Application
    Filed: August 9, 2023
    Publication date: February 15, 2024
    Inventors: Liwen Chu, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240056968
    Abstract: One example discloses a method of preemption for latency-sensitive traffic for communications between WLAN (wireless local area network) devices, including: receiving, by an access point (AP), a first frame from a first non-access point station (non-AP STA); transmitting, by the AP, a second frame indicating Transmission Opportunity (TXOP) pre-emption information to the first non-AP STA; and transmitting, to a second non-AP STA, a third frame; wherein the third frame includes latency-sensitive frame.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 15, 2024
    Inventors: Kiseon Ryu, Liwen Chu, Hongyuan Zhang
  • 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: 11882062
    Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves encoding bits in a Physical Layer Protocol Data Unit (PPDU) using a basic bandwidth that is smaller than a signal bandwidth, wherein the bits are duplicated within the PPDU, and transmitting the PPDU with duplicated bits in accordance with a power spectrum density (PSD) limit.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 23, 2024
    Assignee: NXP USA, Inc.
    Inventors: Rui Cao, Hongyuan Zhang, Yan Zhang, Liwen Chu
  • Publication number: 20240023084
    Abstract: One example discloses a first-device: wherein the first-device is configured to be coupled to a second-device over an IEEE 802.11 communications link; and wherein the first-device is configured to, store a current setup between the first-device and the second-device; identify a unique identifier of the second-device; transmit a request frame to a third-device; wherein at least one of the second-device and third-device is a multi-link-device (MLD); wherein the request frame is configured to request an association with the third-device and includes the unique identifier of the second-device; receive a response frame from the third-device; and wherein the response frame includes an indication that request was successful.
    Type: Application
    Filed: February 22, 2021
    Publication date: January 18, 2024
    Inventors: Young Hoon Kwon, Liwen Chu, Hongyuan Zhang, Huiling 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