Patents by Inventor Rui Cao

Rui Cao 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: 20240155682
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to generate an extended range request-to-send (ER-RTS) packet and a wireless transceiver configured to transmit the ER-RTS packet to a second wireless device to reserve a transmission channel.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 9, 2024
    Inventors: Priyanka Bansal, Hari Ram Balakrishnan, Rui Cao, Liwen Chu, Sudhir Srinivasa
  • Publication number: 20240147531
    Abstract: In an IEEE 802.11 wireless system, a wireless relay STA is configured to receive a MAC control frame to protect a transmission opportunity for a relay operation of frames exchanged between a first STA and a second STA over a wireless relay STA, where the MAC control frame includes TXOP duration information, a receiver address identifying the wireless relay STA, and a transmitter address identifying the first STA, where the wireless relay STA is further configured to transmit an RTS frame in response to receiving the MAC control frame, to receive a CTS frame that is transmitted by the second STA in response to receiving the RTS frame, to transmit a CTS-ACK frame in response to receiving the CTS frame, and to receive and forward a data frame from the first STA which is transmitted at a first TXOP-protected transmission time designated by the TXOP duration information.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 2, 2024
    Inventors: Kiseon Ryu, Liwen Chu, Rui Cao, Hongyuan Zhang
  • Publication number: 20240147363
    Abstract: A method of a low power listening mode includes announcing, by a first wireless device is operating in a low power listening mode. The first wireless device in the low power listening mode receives an initial frame having a single spatial stream and a low data rate from a second wireless device. The frame requests a frame exchange with the first wireless device. The low data rate is lower than a maximum data rate of the first wireless device. A reply to the initial frame is transmitted to the second wireless device in a single spatial stream with the low data rate. The reply acknowledges an association with the second wireless device. The first wireless device wakes from the low power listening mode to a full capacity mode, and performs a frame exchange with the second wireless device in the full capacity mode.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Inventors: Liwen Chu, Rui Cao, Kiseon Ryu, Hongyuan Zhang, Huizhao Wang
  • Publication number: 20240142070
    Abstract: A lighting device includes a base, a panel assembly, and a power supply assembly. The panel assembly is at least partially connected to the base and includes a luminous body. The power supply assembly is connected to the lighting device. The panel assembly includes a main panel and a plurality of auxiliary panels. The main panel is fixedly connected to the base, a first auxiliary panel among the plurality of auxiliary panels is rotatably connected to the main panel, and a second auxiliary panel among the plurality of auxiliary panels is rotatably connected to the first auxiliary panel.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Inventors: Yafei Cao, Yuexiang Zhang, Rui Zhan, Di Wu
  • 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: 11974202
    Abstract: In a vehicular communication network, a communication device generates a physical layer (PHY) preamble of a PHY protocol data unit (PPDU) for transmission in the vehicular communication network. The communication device generates a plurality of PHY data segments of the PPDU, and one or more PHY midambles, each PHY midamble to be transmitted between a respective pair of adjacent PHY data segments, and each PHY midamble including one or more training signal fields. Generating the one or more PHY midambles includes, when the PPDU is to be transmitted according to an extended range (ER) mode, generating each training signal field to include i) a first portion based on a very high throughput long training field (VHT-LTF) defined by the IEEE 802.11ac Standard and ii) a second portion based on the VHT-LTF defined by the IEEE 802.11ac Standard; and transmitting, by the communication device, the PPDU in the vehicular communication network.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: April 30, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventors: Rui Cao, Prashant Sharma, Hongyuan Zhang
  • Publication number: 20240138007
    Abstract: Roaming for an ultra-high reliability (UHR) non-access point (non-AP) device with a distributed access point (AP) multi-link device (MLD), wherein the distributed AP MLD includes a plurality of AP MLDs in different devices at different locations having one medium access control (MAC) service access point (SAP), includes: receiving, by the non-AP device, an announcement from the distributed AP MLD configured to indicate that the distributed AP MLD is a distributed AP MLD with the plurality of AP MLDs in different devices wherein the non-AP device is configured to roam among the plurality of AP MLDs in different devices; associating, by the non-AP device, with a first AP MLD of the plurality of AP MLDs in different devices; and roaming, by the non-AP device, to a second AP MLD of the plurality of AP MLDs in different devices without a reassociation.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Inventors: Liwen CHU, Rui CAO, Kiseon Ryu, Hongyuan ZHANG
  • Publication number: 20240137791
    Abstract: One example discloses a method of interference estimation for communications between WLAN (wireless local area network) devices, including: adding a set of interference estimation attributes to a PPDU; transmitting the PPDU from and receiving the PPDU at a WLAN device; and estimating a set of interference statistics, by the WLAN device, by comparing the set of interference estimation attributes to a corresponding set of predefined attribute values.
    Type: Application
    Filed: October 22, 2023
    Publication date: April 25, 2024
    Inventors: Rui Cao, Rong Zhang, Yan Zhang, Hongyuan Zhang
  • Publication number: 20240137836
    Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to select a wireless relay device from multiple wireless relay devices for data exchanges between the wireless device and a second wireless device and a wireless transceiver configured to exchange data with the second wireless device through the selected wireless relay device.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Inventors: Liwen Chu, Rui Cao, Kiseon Ryu, Hongyuan Zhang
  • Publication number: 20240124615
    Abstract: Provided are a bispecific antibody and use thereof. The recombinant antibody includes: a CDR Sequence selected from at least one of CD3 antibody variable region CDR sequences: SEQ ID NO: 1 to SEQ ID NO: 6, and B7H6 antibody variable region CDR sequences: SEQ ID NO: 7 to SEQ ID NO: 12; or an amino acid sequence having at least 95% identity thereto. The recombinant antibodies prepared according to the present application can simultaneously target CD3 and B7H6 antigens, and they have a. significantly prolonged half-life, exhibiting a stronger tumor-inhibiting ability than single-target antibodies.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Zhigang TIAN, Ying CHENG, Weihua XIAO, Guoshuai CAO, Haoyu SUN, Rui SUN
  • Publication number: 20240119110
    Abstract: A method for generating a computation flow graph scheduling scheme includes grouping original vertexes in an original computation flow graph, so as to obtain first computation flow graphs; determining the number N of computing units required to process a single batch of computation data in parallel; copying N first computation flow graphs, so as to obtain second computation flow graphs; adding auxiliary vertexes to the second computation flow graphs, so as to obtain third computation flow graphs; constructing integer linear programming according to the third computation flow graphs; and solving the integer linear programming, so as to obtain a scheduling scheme for the third computation flow graphs. The method converts an original computation flow graph into third computation flow graphs and integer linear programming is constructed to obtain a scheduling scheme.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 11, 2024
    Applicant: Beijing Stream Computing Inc.
    Inventors: Rui Cao, Wenyuan Lv, Xiaoqiang Dan, Lei Liu
  • Patent number: 11952400
    Abstract: Provided are a bovine rotavirus fusion protein and calf diarrhea multivalent vaccine. The bovine rotavirus fusion protein contains a VP6 fragment, wherein the VP6 fragment contains an amino acid sequence as represented by SEQ ID NO. 4, and at least one loop region of the following (a)˜(c) is substituted with an antigenic epitope derived from bovine coronavirus and/or an antigenic epitope derived from E. coli: (a) amino acid residues of sites 168-177; with an amino acid sequence as represented by SEQ ID NO. 1; (b) amino acid residues of sites 194-205; with an amino acid sequence as represented by SEQ ID NO. 2; and (a) amino acid residues of sites 296-316, with an amino acid sequence as represented by SEQ ID NO. 3, The bovine rotavirus fusion protein contains a plurality of antigenic epitopes, and can enable a host to generate a plurality of antibodies after immunizing the host.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: April 9, 2024
    Assignee: TECON BIOPHARMACEUTICAL CO., LTD.
    Inventors: Sun He, Yiping Pan, Guoqing Zhang, Pengxian Yan, Na Xi, Miaomiao Guo, Shengdong Xiao, Tianzeng Li, Rui Han, Yumeng Wang, Jiubin Du, Pei Zheng, Jian Cao
  • 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
  • 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
  • Publication number: 20240106569
    Abstract: This application provides a data transmission method and an apparatus that are used for extended reality (XR) technologies. In a data transmission method disclosed herein, different parts of to-be-transmitted data are segmented into different code blocks (CBs), to mitigate impact of a transmission failure of one part of the to-be-transmitted data on another part of the to-be-transmitted data, thereby improving overall user experience in data reception. In this way, transmissions of low priority data and high priority data may be separated to avoid performance degradation caused by the low priority data on the high-priority data.
    Type: Application
    Filed: November 2, 2023
    Publication date: March 28, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Rui XU, Shuri LIAO, Erkai CHEN, Youlong CAO, Shengyue DOU
  • 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
  • Publication number: 20240097748
    Abstract: A first communication device receives a sounding packet from a second communication device and develops beamforming information based on the sounding packet. The first communication device transmits beamforming feedback to the second communication device, the beamforming feedback including beamforming information for use by the second communication device to beamsteer a data packet to the first communication device, the data packet having a data portion that includes a second number of OFDM tones greater than a first number of OFDM tones in the sounding packet. After transmitting the beamforming feedback, the first communication device receives the data packet from the second communication device, the data packet including one or more data OFDM symbols, each of the one or more data OFDM symbols having the second number of OFDM tones.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Rui CAO, 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
  • 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