Patents by Inventor Yanjun Sun

Yanjun Sun 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: 20250150237
    Abstract: This disclosure provides methods, devices and systems for generating enhanced sounding packets. Some implementations more specifically relate to sounding packet designs that support enhancements to wireless communication protocols associated with the Institute of Electrical and Electronics Engineers (IEEE) 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an enhanced null data packet announcement (NDPA) frame may be configurable to support multiple versions of the IEEE 802.11 standard. For example, the enhanced NDPA frame may be configured in accordance with a legacy or a non-legacy NDPA frame format. In some other implementations, the enhanced NDPA frame may include a subfield carrying information identifying a particular basic service set (BSS) which may be associated with one or more STA information fields.
    Type: Application
    Filed: November 19, 2024
    Publication date: May 8, 2025
    Inventors: Sameer VERMANI, Alfred ASTERJADHI, Yanjun SUN, Bin TIAN, Lin YANG, Jialing Li CHEN, George CHERIAN, Youhan KIM
  • Patent number: 12295053
    Abstract: Disclosed are techniques for wireless communication. In an aspect, an access point (AP) communicates with at least one wireless station (STA) and supporting a plurality of communication devices and communication modes on a communication medium, establishes a single-link communication mode with the at least one wireless STA and at least one communication device of the plurality of communication devices over a single-link, establishes a multi-link communication mode with the at least one wireless STA and the at least one communication device over a multi-link, and dynamically transitions between the single-link communication mode and the multi-link communication mode based upon a determination related to a best mode of delivery for a next period.
    Type: Grant
    Filed: April 26, 2024
    Date of Patent: May 6, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: George Cherian, Sai Yiu Duncan Ho, Abhishek Pramod Patil, Alfred Asterjadhi, Yanjun Sun
  • Publication number: 20250141633
    Abstract: This disclosure provides methods, devices and systems for transmitting and receiving, between an access point (AP) and one or more stations (STAs) in a basic service set (BSS), an indication of a puncturing event. In some examples, the transmitting and receiving may use non-legacy elements configured to provide information about the puncturing event. In certain aspects, the disclosure provides methods for transmitting and receiving, between the AP and one or more STAs, an indication of an operating band switch. In some examples, the transmitting and receiving may use non-legacy elements configured to provide information about the operating band switch.
    Type: Application
    Filed: December 9, 2024
    Publication date: May 1, 2025
    Inventors: Yanjun SUN, Alfred ASTERJADHI, Abhishek Pramod PATIL, George CHERIAN, Sai Yiu Duncan HO, Gaurang NAIK, Abdel Karim AJAMI, Sandip HOMCHAUDHURI
  • Publication number: 20250141811
    Abstract: This disclosure provides methods, components, devices and systems for flexible control frames. Some aspects more specifically relate to indicating control information or control feedback in control frames including fields of flexible size. In some implementations, a wireless device may include control feedback in a dedicated feedback field within responsive control frames, within initial control frames, or both. The wireless device may indicate that a field includes the control feedback using bit sequences in one or more other subfields, such as a traffic identifier (TID) subfield or user information subfield. In some implementations, the control feedback information may provide another wireless device with additional information associated with a transmission, such as information associated with an upcoming data transmission or a reception status of a communicated data transmission.
    Type: Application
    Filed: October 24, 2024
    Publication date: May 1, 2025
    Inventors: Alfred ASTERJADHI, Abhishek Pramod PATIL, George CHERIAN, Abdel Karim AJAMI, Yanjun SUN, Sai Yiu Duncan HO, Gaurang NAIK
  • Publication number: 20250142606
    Abstract: This disclosure provides methods, components, devices, and systems for service period parameter scheduling for frame exchange procedures. In some examples, a first wireless device (such as an access point (AP), a station (STA)), may communicate with a second wireless device (such as a STA, an AP) during a scheduled service period. The first wireless device may indicate an upper or lower limit for communication parameters used by the first wireless device and the second wireless device during the service period. The first wireless device may communicate with the second wireless device according to the limited parameters. In some examples, the first wireless device may be available to communicate with other wireless devices outside of the scheduled service period. In such examples, the first wireless device may communicate with the other wireless devices according to a second set of parameters indicated alongside the first set of parameters.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 1, 2025
    Inventors: Alfred ASTERJADHI, Abdel Karim AJAMI, George CHERIAN, Abhishek Pramod PATIL, Gaurang NAIK, Yanjun SUN, Sai Yiu Duncan HO
  • Publication number: 20250141599
    Abstract: Certain aspects of the present disclosure provide a method for wireless communications at a first wireless device. The method generally includes generating a protected frame that indicates: 1) an updated starting sequence number (SSN) of a block acknowledgment (BA) window and 2) an intended purpose of the protected frame as a request to update a BA window with the updated SSN; outputting, for transmission to a second wireless device that the first wireless device has established a protected block acknowledgment (BA) agreement with, the protected frame; generating multiple medium access control (MAC) Protocol Data Units (MPDUs) with SNs within the updated BA window; and outputting, for transmission to the second wireless device, the multiple MPDUs.
    Type: Application
    Filed: March 23, 2023
    Publication date: May 1, 2025
    Inventors: Abhishek Pramod PATIL, George CHERIAN, Alfred ASTERJADHI, Sai Yiu Duncan HO, Gaurang NAIK, Abdel Karim AJAMI, Yanjun SUN, Jouni Kalevi MALINEN, Srikant KUPPA, Padmanabhan Venkataraman KARTHIC, Guido Robert FREDERIKS, James Simon CHO
  • Publication number: 20250142396
    Abstract: This disclosure provides methods and devices for managing the allocation of resources for uplink (UL) and downlink (DL) transmissions associated with a scheduled time period. In some implementations, a wireless station (STA) transmits, to an access point (AP), a request frame indicating a bandwidth or a quantity of spatial streams (or both) for the UL transmissions, and indicating a bandwidth or a quantity of spatial streams (or both) for the DL transmissions. In some instances, the request frame also may indicate the STA's intention to transmit UL data as duplicates carried on different communication links. The STA receives a trigger frame indicating that the STA is scheduled to transmit or receive data during the time period. The STA transmits data to, or receives data from, one or more other devices during the time period.
    Type: Application
    Filed: January 3, 2025
    Publication date: May 1, 2025
    Inventors: Abdel Karim AJAMI, Alfred ASTERJADHI, Sai Yiu Duncan HO, George CHERIAN, Abhishek Pramod PATIL, Yanjun SUN, Gaurang NAIK
  • Publication number: 20250133551
    Abstract: This disclosure provides methods, components, devices and systems that may help various wireless devices that select multiple primary channels, for a basic service set (BSS), to contend for channel access. An example method, performed at a first wireless node (e.g., an access point), generally includes obtaining, via a first primary channel, a frame indicating a first configuration of a first basic service set (BSS), and communicating, with at least a second wireless node in a second BSS, in accordance with a second configuration, said second configuration being based on the first configuration and one or more rules, wherein the second configuration configures a first operating bandwidth for the first primary channel and at least a second operating bandwidth for at least one second primary channel.
    Type: Application
    Filed: September 18, 2024
    Publication date: April 24, 2025
    Inventors: Gaurang NAIK, Yanjun SUN, Abhishek Pramod PATIL, George CHERIAN, Alfred ASTERJADHI, Sai Yiu Duncan HO, Abdel Karim AJAMI
  • Patent number: 12284717
    Abstract: A first access point (AP) of an AP multi-link device (MLD) is associated with a first communication link, and one or more secondary APs of the AP MLD are associated with one or more respective secondary communication links of the AP MLD. The first AP of the AP MLD generates a frame including a first change sequence field and one or more secondary change sequence fields. The first change sequence field indicates a presence or absence of a critical update associated with the first communication link, and each of the one or more secondary change sequence fields indicates a presence or absence of a critical update associated with a corresponding secondary communication link of the AP MLD. The first AP of the AP MLD transmits the frame over the first communication link of the AP MLD to a station (STA) of a STA MLD.
    Type: Grant
    Filed: June 28, 2023
    Date of Patent: April 22, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Abhishek Pramod Patil, Sai Yiu Duncan Ho, George Cherian, Alfred Asterjadhi, Yanjun Sun
  • Publication number: 20250126645
    Abstract: This disclosure provides methods, components, devices and systems for enabling coordinated multiple access on multiple primary channels. Some aspects more specifically relate to inter access point (AP) coordination to share a portion of a transmission opportunity (TXOP). A first AP may transmit a first signal on a secondary primary channel conveying an indication that a portion of the TXOP is available for sharing. The second AP may respond with a confirmation on the secondary primary channel that the second AP is tuned to the secondary primary channel. Accordingly, the second AP may transmit a second signal on the secondary primary channel to the first AP indicating that the portion of the TXOP is available for use. The second AP may use the portion of the TXOP to communicate with one or more station(s) on the secondary primary channel.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 17, 2025
    Inventors: Gaurang NAIK, Abhishek Pramod PATIL, Yanjun SUN, Abdel Karim AJAMI, George CHERIAN, Alfred ASTERJADHI, Sai Yiu Duncan HO
  • Publication number: 20250126066
    Abstract: This disclosure provides methods, components, devices and systems for techniques for end-to-end operations between a first wireless station (STA) and a second STA via a wireless access point (AP). Some aspects more specifically relate to indicating one or more quality of service (QOS) parameters to the AP, sharing transmission opportunities (TXOPs) between the first STA and the AP, or both. In some examples, the first STA may identify one or more QoS parameters and may transmit, to the AP, an indication of the one or more QoS parameters, such that the AP may configure the second STA with the one or more QoS parameters. Additionally, or alternatively, the first STA may obtain a TXOP and may share the TXOP with the AP, such that the AP may use the shared TXOP to forward a message received from the first STA to the second STA.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 17, 2025
    Inventors: George CHERIAN, Sai Yiu Duncan HO, Abhishek Pramod PATIL, Alfred ASTERJADHI, Abdel Karim AJAMI, Gaurang NAIK, Yanjun SUN
  • Publication number: 20250126524
    Abstract: This disclosure provides methods, components, devices and systems for multi-primary channel access operation. Some aspects more specifically relate to improving the efficiency of multi-primary channel access schemes. In some implementations, the first wireless device may use multiple primary subchannels. A first wireless device may receive a first signaling indicating a first reservation of a first transmission opportunity (TXOP) for a second wireless device on a first primary channel. The first wireless device may obtain a second TXOP to transmit or receive, via a second primary channel, a second signaling indicating a second reservation of the second TXOP. The ending time of the second TXOP may occur prior to an ending time of the first reservation and prior to a transition delay associated with a communication event scheduled on the first subset of channels or a second subset of channels.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 17, 2025
    Inventors: Gaurang NAIK, Abhishek Pramod PATIL, George CHERIAN, Alfred ASTERJADHI, Sai Yiu Duncan HO, Yanjun SUN, Abdel Karim AJAMI
  • Publication number: 20250119829
    Abstract: This disclosure provides methods, components, devices and systems for multi-hop support for coordinated medium access. Some aspects more specifically relate to one or more mechanisms according to which an access point (AP) may indicate how many hops a medium access schedule is to be re-announced throughout a wireless network. In some examples, a first AP may select a medium access schedule and may transmit timing information indicative of communication periods associated with the medium access schedule and a value associated with a multi-hop propagation of the timing information. A second AP may receive the timing information and the value and may selectively transmit the timing information in accordance with the value. For example, if the value is indicative of greater than or equal to a threshold hop count value, the second AP may propagate the timing information associated with the communication periods of the first AP.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 10, 2025
    Inventors: Abdel Karim AJAMI, George CHERIAN, Alfred ASTERJADHI, Abhishek Pramod PATIL, Sai Yiu Duncan HO, Gaurang NAIK, Yanjun SUN, Xiaolong HUANG
  • Publication number: 20250109133
    Abstract: This disclosure relates to methods of treatment using compound (1) or analogs thereof, and pharmaceutically acceptable salts thereof. Also disclosed are compounds of formula (10): as defined in the specification, and pharmaceutically acceptable salts thereof, as well as pharmaceutical compositions comprising the same. Methods of treatment, such as for cancer, are provided that comprise administering the compounds and their salts to a subject in need of such treatment.
    Type: Application
    Filed: December 12, 2024
    Publication date: April 3, 2025
    Applicant: CHIMERIX, INC.
    Inventors: Joshua E. Allen, Martin STOGNIEW, Richard S. POTTORF, Bhaskara Rao NALLAGANCHU, Gary OLSON, Yanjun SUN
  • Publication number: 20250113393
    Abstract: This disclosure provides methods, components, devices, and systems for reconfiguration signaling for seamless roaming. Some aspects more specifically relate to reconfiguration signaling to facilitate link addition and link deletion operations for roaming, such as seamless roaming. Either a wireless station (STA) or an access point (AP) device may initiate the roaming. In some examples, a first device, such as the STA, a serving AP device, or a target AP device, may transmit a reconfiguration request to a second device, requesting to perform a link addition operation on links of the target AP device or to perform a link deletion operation on links of the serving AP device. The second device, which may be the STA, the serving AP device, or the target AP device, may transmit a reconfiguration response to indicate which links are to be deleted or added.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 3, 2025
    Inventors: Abhishek Pramod PATIL, Gaurang NAIK, Sai Yiu Duncan HO, George CHERIAN, Alfred ASTERJADHI, Yanjun SUN, Abdel Karim AJAMI
  • Publication number: 20250108038
    Abstract: Substituted derivatives of 5-(4-chlorophenyl)-2,3-dihydroimidazo[1,2-b]isoindol-5-ol and their uses in pharmaceutical compositions for the treatment of central nervous system diseases or disorders are provided.
    Type: Application
    Filed: September 27, 2024
    Publication date: April 3, 2025
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Gary L. Olson, Bhaskara Rao Nallaganchu, Yanjun Sun, Chungping YU
  • Publication number: 20250113313
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for coordinated scheduling of service periods (SPs). In some aspects, an access point (AP) may receive timing information indicating an SP associated with an overlapping basic service set (OBSS) and may transmit, to its associated STAs, coordinated timing information indicating the timing of the SP in relation to its timing synchronization function (TSF) timer. In some aspects, the AP may adjust the timing information to account for an offset between its TSF timer and a TSF timer associated with the OBSS. In some other aspects, the AP may synchronize its TSF timer with the TSF timer associated with the OBSS. The AP may further communicate with the STAs based on the coordinated timing information. For example, the AP may schedule communications with the STAs to be orthogonal to communications in the OBSS during the SP.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: Abdel Karim AJAMI, Sai Yiu Duncan HO, Alfred ASTERJADHI, George CHERIAN, Abhishek Pramod PATIL, Yanjun SUN, Gaurang NAIK
  • Publication number: 20250113264
    Abstract: This disclosure provides methods, components, devices and systems for discovery signaling for seamless roaming. Some aspects more specifically relate to indicating or advertising information associated with a single mobility domain (SMD) and information associated with access point (AP) devices that support seamless roaming. In some implementations, an AP device or a multi-link device (MLD) may transmit parameters associated with the SMD MLD to advertise information of the SMD MLD. In some implementations, the AP device or MLD may advertise candidate AP devices, which may support the seamless roaming. A non-MLD device, such as a wireless station (STA), may request additional information for a candidate AP device that supports seamless roaming. The AP device may transmit a response to the request indicating a portion of a profile of the candidate AP device.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 3, 2025
    Inventors: Abhishek Pramod PATIL, Gaurang NAIK, Sai Yiu Duncan HO, George CHERIAN, Alfred ASTERJADHI, Yanjun SUN, Abdel Karim AJAMI
  • Patent number: 12267709
    Abstract: Methods, systems, and devices for wireless communications are described. In some aspects, two devices may support signaling and messaging designs that support bandwidths that are greater than 160 MHz for ranging null data packets (NDPs). For example, various signaling and messaging designs may support a use of a 320 MHz bandwidth for ranging NDPs as part of a ranging measurement procedure, which may offer greater resolution than narrower bandwidths. The signaling and messaging designs may include one or more updates for a null data packet announcement (NDPA) frame, for a trigger frame, for session negation messages (such as one or both of an initial fine timing measurement (IFTM) frame and an IFTM request (IFTMR) frame), for segmentation techniques for ranging NDPs, or for any combination thereof.
    Type: Grant
    Filed: April 15, 2022
    Date of Patent: April 1, 2025
    Assignee: QUALCOMM Incorporated
    Inventors: Yanjun Sun, Alireza Raissinia, Stephen Jay Shellhammer, Xiaoxin Zhang, George Cherian, Alfred Asterjadhi, Abhishek Pramod Patil
  • Publication number: 20250106891
    Abstract: This disclosure provides systems, methods, and apparatus for managing data traffic in restricted target wake time (TWT) service periods (SPs). In some aspects, an access point (AP) receives a request frame from a wireless station (STA) associated with a client device via a peer-to-peer (P2P) link, the request frame indicating the STA intends to exchange P2P communications with the client device during a r-TWT SP scheduled on a wireless medium. The AP obtains a transmission opportunity (TXOP) on the wireless medium during the r-TWT SP, the request frame identifying the client device. The AP transmits a trigger frame on the wireless medium responsive to obtaining the TXOP, the trigger frame allocating a portion of the obtained TXOP for P2P communications between the STA and the client device, wherein at least one of the response frame or the trigger frame indicates a Network Allocation Vector (NAV) exception for the client device.
    Type: Application
    Filed: October 3, 2024
    Publication date: March 27, 2025
    Inventors: Abdel Karim AJAMI, Sai Yiu Duncan HO, George CHERIAN, Alfred ASTERJADHI, Abhishek Pramod PATIL, Yanjun SUN, Gaurang NAIK