Patents by Inventor Zhou Lan

Zhou Lan 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: 12382491
    Abstract: In some aspects, the disclosure is directed to methods and systems for early termination of multi-user enhanced distributed channel access parameter application for one or more stations or devices. In various implementations, referred to as un-solicited or solicited termination, the multi-user enhanced distributed channel access timeout period may be terminated early by an access point device, or by a non-access point station or device, respectively.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: August 5, 2025
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Zhou Lan, Chunyu Hu
  • Publication number: 20250220644
    Abstract: This disclosure relates to methods for transmitting an initial control frame with pre-padding frame check sequence in a wireless local area network. An initial control frame that includes an intermediate frame check sequence may be transmitted from an access point to multiple recipient wireless devices. An intermediate frame check sequence may be located between the last user info field and the Padding field of the initial control frame. The recipient wireless device may perform a frame check sequence check for the initial control frame using the intermediate frame check sequence.
    Type: Application
    Filed: December 20, 2024
    Publication date: July 3, 2025
    Inventors: Yan Zhang, Morteza Mehrnoush, Zhou Lan, Anuj Batra
  • Publication number: 20250219766
    Abstract: This disclosure relates to methods for transmitting an initial control frame with pre-padding frame check sequence in a wireless local area network. An initial control frame that includes one or more per-user frame check sequences may be transmitted from an access point to multiple recipient wireless devices. Each per-user frame check sequence may be included in a user info field of the initial control frame corresponding to a recipient wireless device. The recipient wireless device may perform a frame check sequence check for the initial control frame using the per-user frame check sequence.
    Type: Application
    Filed: December 20, 2024
    Publication date: July 3, 2025
    Inventors: Yan Zhang, Morteza Mehrnoush, Zhou Lan, Anuj Batra
  • Publication number: 20250168702
    Abstract: This disclosure relates to methods for communicating aggregated physical layer protocol data units in a wireless local area network. An aggregated physical layer protocol data unit that includes multiple physical layer protocol data units may be transmitted, which may occupy a frequency channel that includes a primary subchannel and a secondary subchannel. A physical layer protocol data unit may be transmitted on the primary subchannel to a wireless device with smaller bandwidth capability than the bandwidth occupied by the aggregated physical layer protocol data unit, and another physical layer protocol data unit having the same or a different physical layer protocol data unit format may be transmitted on the secondary subchannel to an enhanced multi-link single radio secondary channel or dynamic subband operation capable wireless device with smaller bandwidth capability than the bandwidth occupied by the aggregated physical layer protocol data unit.
    Type: Application
    Filed: July 10, 2024
    Publication date: May 22, 2025
    Inventors: Yan Zhang, Wook Bong Lee, Zhou Lan, Anuj Batra
  • Publication number: 20250150904
    Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: determining that a wireless device will switch from a first access point radio to a second access point radio; selecting pseudo-static context data for the wireless device communication with the first access point radio based at least on determining that the wireless device will switch from the first access point radio to the second access point radio; and transmitting, to the second access point radio, the pseudo-static context data a) while the wireless device continues at least some communication with the first access point radio and b) that indicates that the second access point radio will receive an instantaneous context for the wireless device.
    Type: Application
    Filed: September 27, 2024
    Publication date: May 8, 2025
    Inventors: Pooya Monajemi, Ahmad Reza Hedayat, Chittabrata Ghosh, Jarkko L. Kneckt, Lochan Verma, Morteza Mehrnoush, Oren Shani, Veerendra Boodannavar, Yong Liu, Zhou Lan
  • Publication number: 20250113377
    Abstract: Methods, systems and apparatuses for enhanced coordinated channel access including access points (APs) and non-access points (non-APs). A first non-access point (non-AP) in a group of at least two non-APs can receive, from a second non-AP of the group of at least two non-APs, signaling including information corresponding to a transmission opportunity (TXOP). Additionally, the first non-AP can transmit, in accordance with the information corresponding to the TXOP and scheduling information of the group of at least two non-APs, first data to one or more devices, wherein the first data is transmitted to the one or more devices in at least a portion of the TXOP.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Inventors: Mohamed Abouelseoud, Akira Yamanaka, Zhou Lan, Chittabrata Ghosh, Anuj Batra, Su Khiong Yong, Wook Bong Lee, Oren Shani, Yong Liu, Jarkko L. Kneckt, Qi Wang
  • Publication number: 20250081240
    Abstract: A method performed by a wireless device operating in an uplink multi-user mode includes: setting an exclusion bit in an operating mode control subfield of a transmit operating mode indicator frame, the exclusion bit indicating an exclusion of an AC or a TID from the uplink multi-user mode; sending, to the AP, a trigger-based physical layer protocol data unit (PPDU) comprising the transmit operating mode indicator frame; contending for channel access using an enhanced distributed channel access (EDCA) function to send the low latency data via an uplink; and transmitting the low latency data to the AP in a single user PPDU in accordance with EDCA-based channel contention.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 6, 2025
    Inventors: Chittabrata Ghosh, Anuj Batra, Oren Shani, Zhou Lan, Mohamed Abouelseoud, Wook Bong Lee, Morteza Mehrnoush
  • Publication number: 20250081239
    Abstract: A method for transmitting a high priority (HP) packet from a first wireless device to a second wireless device is described. The method includes determining the presence of an HP packet for uplink transmission; determining that a communications link that uses a wireless medium for transmitting the HP packet is busy; generating a preemption request message in a frame; and transmitting the frame with the preemption request message to the second wireless device. The first wireless device can receive from the second wireless device an indication that the preemption request was accepted, such as by receiving a trigger frame with resource allocation for transmitting the HP packet or an indication of the end of a contention free period, to allow the first wireless device to contend for channel access to transmit the HP packet.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Morteza Mehrnoush, Anuj Batra, Chittabrata Ghosh, Mohamed Abouelseoud, Oren Shani, Wook Bong Lee, Zhou Lan
  • Publication number: 20250081091
    Abstract: This disclosure relates to methods for transmission preemption in a wireless local area network. A downlink transmission may be performed by an access point device on a first wireless link. Signaling requesting or indicating preemption of the downlink transmission may be provided from a non-access point device to the access point device on a second wireless link. The downlink transmission may be preempted based at least in part on the signaling requesting or indicating preemption of the downlink transmission.
    Type: Application
    Filed: June 21, 2024
    Publication date: March 6, 2025
    Inventors: Mohamed Abouelseoud, Akira Yamanaka, Wook Bong Lee, Oren Shani, Zhou Lan, Qi Wang, Anuj Batra, Jarkko L. Kneckt, Yong Liu, Su Khiong Yong
  • Publication number: 20250071675
    Abstract: When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
    Type: Application
    Filed: August 30, 2024
    Publication date: February 27, 2025
    Inventors: Yanchun Li, Zhou Lan, Yunbo Li
  • Publication number: 20250016820
    Abstract: Systems, methods, and mechanisms for preemption of non-low latency data within an aggregated medium access control (MAC) protocol data unit (AMPDU), e.g., such as in current and future IEEE 802.11 systems. A wireless device (e.g., an access point or wireless station) may transmit, during an AMPDU, a trigger to receive (TRX) frame. The TRX frame may indicate preemption of non-low latency data intended for a first wireless station with low latency data intended for a second wireless station, e.g., via an acknowledgement policy change. Additionally, the wireless device may be configured to transmit, to the second wireless station, the low latency data within the AMPDU. Further, the wireless device may be configured to receive, after the AMPDU transmission is complete, a multi-block acknowledgement (M-BA) frame from the second wireless station. The M-BA frame and completion of the AMPDU transmission are separated by a short inter-frame space (SIFS).
    Type: Application
    Filed: July 3, 2024
    Publication date: January 9, 2025
    Inventors: Zhou Lan, Chittabrata Ghosh, Anuj Batra, Wook Bong Lee, Mohamed Abouelseoud, Morteza Mehrnoush
  • Publication number: 20240380518
    Abstract: Some aspects of this disclosure include an apparatus, method, and computer program product for wireless local area network (WLAN) link adaptation. Some aspects of this disclosure include fast feedback (FB) contents to improve WLAN link adaptation that can address the challenges of ultra-high reliability (UHR) wireless communications. Fast FB contents can include a feedback sequence number (FBSN) that identifies a reference packet and FB data corresponding to the receipt of the reference packet by the receiving device. The FB data can include link adaptation parameters corresponding to the receiving device that the transmitting device can use to adjust (e.g., adapt) subsequent transmissions to the same receiving device. Some aspects include an indicator that informs a receiving device whether to provide a Negative Acknowledgement (NACK) frame (e.g., control packets) with FB contents or not.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 14, 2024
    Applicant: APPLE INC.
    Inventors: Wook Bong LEE, Tianyu WU, Zhou LAN, Feng JIANG, Mohamed ABOUELSEOUD, Chitto GHOSH, Anuj BATRA
  • Publication number: 20240380519
    Abstract: Some aspects of this disclosure include an apparatus, method, and computer program product for wireless local area network (WLAN) link adaptation for multi-user transmission. For example, a receiving device can receive a multi-user-physical layer (PHY) protocol data unit (MU-PPDU) including a preamble and a plurality of data portions. The preamble can include a PHY multi-user-block acknowledgement request (MU-BAR) frame indicating a frequency band for transmitting a trigger-based (TB)-PPDU. The receiving device can decode at least a portion of a first data portion of the and transmit the TB-PPDU including feedback (FB) data corresponding to the first data portion in the frequency band. Even if the decoding of the first data portion fails, the receiving device can use information in the PHY MU-BAR frame to transmit a TB-PPDU to the transmitting device that includes a negative acknowledgment (NACK) frame and a FB sequence number of the MU-PPDU.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 14, 2024
    Applicant: APPLE INC.
    Inventors: Wook Bong LEE, Tianyu WU, Zhou LAN, Feng JIANG, Mohamed ABOUELSEOUD, Chitto GHOSH, Anuj BATRA, Yan ZHANG
  • Publication number: 20240340885
    Abstract: This disclosure relates to methods for providing unsolicited unavailability announcements to manage the co-existence of Wi-Fi and other technologies (such as Bluetooth) and to manage infrastructure and peer-to-peer connections in a wireless communication system. A wireless device may establish multiple wireless connections on a set of radio resources. The wireless device may transmit an unsolicited unavailability announcement frame, which may include information indicating a time period of future unavailability for the wireless device on the set of radio resources. Such an unsolicited unavailability announcement frame may also include information regarding the device's current availability, for example during which the device plans to initiate a transmit opportunity.
    Type: Application
    Filed: March 21, 2024
    Publication date: October 10, 2024
    Inventors: Qi Wang, Yong Liu, Jarkko L. Kneckt, Yijun Qiao, Oren Shani, Debashis Dash, Charles F. Dominguez, Jinjing Jiang, Su Khiong Yong, Sidharth R. Thakur, Tianyu Wu, Zhou Lan, Anuj Batra, Mohamed Abouelseoud
  • Patent number: 12114258
    Abstract: When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: October 8, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yanchun Li, Zhou Lan, Yunbo Li
  • Publication number: 20240334485
    Abstract: This disclosure relates to methods for transmitting and receiving multi-user request-to-send and clear-to-send frames in a wireless communication system. An access point wireless device may establish wireless connections with multiple wireless devices. The access point wireless device may transmit a multi-user request-to-send frame to the wireless devices. The multi-user request-to-send frame may indicate a transmit opportunity duration and allocate frequency resource units on which to transmit clear-to-send frames to the wireless devices. The wireless devices may transmit the clear-to-send frames on the allocated frequency resource units. The clear-to-send frames can include an indication of partial or full availability for the transmit opportunity.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Inventors: Zhou Lan, Mohamed Abouelseoud, Anuj Batra, Yong Liu, Akira Yamanaka, Oren Shani, Jarkko L. Kneckt, Tianyu Wu, Jinjing Jiang, Qi Wang
  • Publication number: 20240314621
    Abstract: Disclosed herein are apparatuses and a method for implementing latency reduction using preemption within a physical layer (PHY) protocol data unit (PDU) (PPDU). An embodiment operates by encoding a multi-user PPDU (MU-PPDU) for transmission, where, the MU-PPDU comprises a plurality of aggregated media access control (MAC) PDUs (A-MPDUs) addressed to respective non-low-latency stations (non-LL-STAs). Based on a determination that low-latency data addressed to a low-latency station (LL-STA) is available for transmission at a MAC layer of the AP, the embodiment then transmits a preemption-indicator signal to the LL-STA and at least one non-LL-STA. Further, the embodiment identifies an A-MPDU of the plurality of A-MPDUs that is scheduled for transmission over a resource unit (RU) designated for transmitting low-latency data.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 19, 2024
    Applicant: Apple Inc.
    Inventors: Wook Bong LEE, Anuj BATRA, Zhou LAN, Mohamed ABOUELSEOUD, Chitlo CHOSH
  • Publication number: 20240188133
    Abstract: Systems, methods, and mechanisms for a Probe-Before-Talk (PBT) to manage the operation of Wi-Fi multiple interfaces and/or Wi-Fi co-existence with other technologies. Further, embodiments described herein relate to systems, methods, and mechanisms for PBT setup, a PBT session, and PBT termination. The systems, methods, and mechanisms described herein may support either a wireless station or an access point as an initiator of a transmit opportunity.
    Type: Application
    Filed: August 30, 2023
    Publication date: June 6, 2024
    Inventors: Qi Wang, Charles F Dominguez, Jarkko L Kneckt, Yong Liu, Oren Shani, Debashis Dash, Mohamed Abouelseoud, Yoel Boger, Su Khiong Yong, Zhou Lan, Anuj Batra, Ahmad Reza Hedayat, Jinjing Jiang
  • Publication number: 20240106584
    Abstract: Payload transmission of multiple stations on a single resource unit may be performed. New and/or updated signaling may be introduced to enable a transmitter, e.g., an access point (AP), to include information/signaling in the preamble or in other frames. A receiver (e.g., a wireless station) that receives this information/signaling may accordingly determine in which RU it should decode to receive its allocated data or payload, allowing multiple receivers or STAs to share a single resource unit (RU). The new/updated signaling may include modified hybrid downlink multiuser signaling in Ultra High Reliability Signal (UHR-SIG), a group association identifier (gAID), a predefined special AID corresponding to an RU with use of a Bloom filter, multiple predefined special AIDs each corresponding to a non-overlapping group of wireless stations, and/or signaling announcing time sharing of single RUs.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 28, 2024
    Inventors: Jinjing Jiang, Lochan Verma, Jarkko L. Kneckt, Yong Liu, Ahmad Reza Hedayat, Tianyu Wu, Zhou Lan
  • Publication number: 20240080660
    Abstract: An electronic device (such as an access point) that receives a modified response frame is described. During operation, an interface circuit in the electronic device may provide a trigger frame addressed to a second electronic device, where the trigger frame includes a trigger-frame variant that is compatible with an IEEE 802.11 standard (such as IEEE 802.11ax or a subsequent IEEE 802.11 standard). Then, the interface circuit may receive a modified response frame associated with the second electronic device, where the modified response frame is different from a response frame associated with the trigger frame specified by the IEEE 802.11 standard. When the second electronic device indicates support for the modified response frame during association with the electronic device, the interface circuit may define parameters associated with the modified response frame in an association response.
    Type: Application
    Filed: August 10, 2023
    Publication date: March 7, 2024
    Inventors: Jarkko L. Kneckt, Yong Liu, Su Khiong Yong, Leonid Epstein, Zhou Lan, Anuj Batra, Mohamed Abouelseoud, Qi Wang