Patents by Inventor George Cherian

George Cherian 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: 11696338
    Abstract: An access point (AP) may prioritize the allocation of uplink resources between multiple basic service sets (BSSs). In some aspects, the AP may select one of a plurality of BSSs, may allocate one or more random-access resource units (RUs) to only the selected BSS, and may transmit, for each of the selected BSSs, a respective frame indicating the random-access RUs allocated to that BSS. Wireless devices belonging to the selected BSS may contend for access to the random-access RUs allocated by the frame, and then transmit uplink data using the random-access RUs.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: July 4, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Alfred Asterjadhi, James Simon Cho, George Cherian, Simone Merlin, Abhishek Pramod Patil
  • Publication number: 20230209466
    Abstract: Various aspects of the techniques, methods and devices described in this disclosure relate generally to achieving coexistence between WLAN and P2P networks, and specifically, to coordinated D2D communications. Some aspects particularly involve extending the capabilities of TWT elements transmitted by APs to support periodic reserved access windows during which D2D-enabled wireless devices are permitted to transmit direct wireless communications. Some other aspects relate to sharing time and frequency resources via CAP TDMA or CAP OFDMA techniques, and specifically, to allocating at least some of the time and frequency resources specifically for D2D communications.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Inventors: George CHERIAN, Alfred ASTERJADHI, Abhishek Pramod PATIL, Lochan VERMA, Sai Yiu Duncan HO
  • Publication number: 20230199641
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for protecting latency-sensitive communications among multi-link devices (MLDs). An access point (AP) MLD may establish multiple communication links with a non-AP MLD and schedule a restricted target wake time (r-TWT) service period (SP) on one of the links (the “r-TWT link”). In some aspects, when a transmit opportunity (TXOP) acquired on a non-r-TWT link overlaps the r-TWT SP, the TXOP may be extended to support an exchange of latency-sensitive traffic on the non-r-TWT link. In some other aspects, any TXOPs occurring on non-r-TWT links may be terminated prior to the start of the r-TWT SP so that latency-sensitive traffic can be exchanged on the r-TWT link during the SP. An AP MLD also may schedule SPs on multiple communication links. In some aspects, the AP MLD may transfer a TWT agreement between the communication links.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Inventors: Gaurang NAIK, Abdel Karim AJAMI, Alfred ASTERJADHI, George CHERIAN, Abhishek Pramod PATIL, Sai Yiu Duncan HO, Yanjun SUN
  • Patent number: 11683767
    Abstract: This disclosure provides methods, devices and systems for synchronizing an end of an exchange of frames during a transmission opportunity (TXOP) with a target synchronization time using a synchronization short inter-frame space (SynSIFS) before a transmission by a wireless communication device that controls the medium. The wireless communication device obtains control of the medium for the TXOP by completing a CCA procedure. An exchange of frames during the TXOP includes transmissions from the wireless communication device and responses from other devices while the wireless communication device controls the medium. A duration of the SynSIFS may be adjustable at a microsecond granularity. Accordingly, the wireless communication device may select a duration of the SynSIFS that allows alignment of the end of the exchange with the target synchronization time. The wireless communication device also may adjust a number of symbols in the transmission from the wireless communication device.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: June 20, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Maarten Menzo Wentink, George Cherian
  • Publication number: 20230189337
    Abstract: This disclosure provides methods, devices and systems for providing energy detection based resolution in radio access technologies. In one aspect, a wireless communication device may include a first energy detection threshold (EDT) to identify a transmission opportunity in an unlicensed frequency band. The wireless communication device may detect a second wireless communication device having a second EDT to identify the transmission opportunity, the second EDT being greater than the first EDT. The wireless communication device may, based on detection of the second wireless communication device having the second EDT, modify a transmission configuration of the first wireless communication device.
    Type: Application
    Filed: November 19, 2021
    Publication date: June 15, 2023
    Inventors: Yanjun SUN, George CHERIAN, Maarten Menzo WENTINK, Sai Yiu Duncan HO, Abhishek Pramod PATIL, Alfred ASTERJADHI, Gaurang NAIK, Abdel Karim AJAMI
  • Publication number: 20230180047
    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: December 7, 2021
    Publication date: June 8, 2023
    Inventors: Abdel Karim AJAMI, Alfred ASTERJADHI, Sai Yiu Duncan HO, George CHERIAN, Abhishek Pramod PATIL, Yanjun SUN, Gaurang NAIK
  • Publication number: 20230171817
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for priority access on a shared wireless channel. A priority station (STA), an access point (AP), or a network operator may activate a priority access service. The priority access service provides priority access to authorize priority STAs by allowing them to use more aggressive contention parameters for contention-based access of the wireless channel as compared to other STAs. In some implementations, non-priority STAs may be configured with weakened contention parameters to increase or ensure the likelihood that a priority STA will win contention for access to the wireless channel.
    Type: Application
    Filed: January 11, 2023
    Publication date: June 1, 2023
    Inventors: George Cherian, Alfred Asterjadhi, Bin Tian, Stephen Jay Shellhammer
  • Publication number: 20230171818
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for priority access on a shared wireless channel. A priority station (STA), an access point (AP), or a network operator may activate a priority access service. The priority access service provides priority access to authorize priority STAs by allowing them to use more aggressive contention parameters for contention-based access of the wireless channel as compared to other STAs. In some implementations, non-priority STAs may be configured with weakened contention parameters to increase or ensure the likelihood that a priority STA will win contention for access to the wireless channel.
    Type: Application
    Filed: January 11, 2023
    Publication date: June 1, 2023
    Inventors: George Cherian, Alfred Asterjadhi, Bin Tian, Stephen Jay Shellhammer
  • Patent number: 11665760
    Abstract: This disclosure provides systems, methods, and apparatus for wireless communications. In one aspect, an apparatus may obtain, for a first access point (AP), a first service set identifier (SSID) associated with single-link communications and obtain, for a second AP, a second SSID associated with multi-link communications. The apparatus may obtain, from a wireless communication device, a management frame include a multi-link operation information field that carries a first SSID and obtain a multi-link indication for the wireless communication device based, at least in part, on the first SSID, the multi-link indication indicating whether the wireless communication device includes AP capable of link aggregation, and selectively associate with the wireless communication device based on the multi-link indication.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: May 30, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Sai Yiu Duncan Ho, Abhishek Pramod Patil, George Cherian, Alfred Asterjadhi, Yanjun Sun
  • Publication number: 20230155782
    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: November 17, 2021
    Publication date: May 18, 2023
    Inventors: Yanjun SUN, Alfred ASTERJADHI, Abhishek Pramod PATIL, George CHERIAN, Sai Yiu Duncan HO, Gaurang NAIK, Abdel Karim AJAMI, Sandip HOMCHAUDHURI
  • Publication number: 20230156581
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for advertising operating channels that are being operated in an unlicensed frequency band. One or more access points (APs) may transmit discovery information on a dedicated discovery channel for the unlicensed frequency band. The discovery information may indicate at least one operating channel that is being used by an AP for providing wireless access. The discovery information also may include other information useful for a station (STA) to discover APs, operating channels, and operating parameters. The STA may monitor the dedicated discovery channel to obtain the discovery information without conducting an active scanning or passive scanning procedure.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 18, 2023
    Inventors: Alfred Asterjadhi, George Cherian, Abhishek Pramod Patil, Yan Zhou, Venkata Ramanan Venkatachalam Jayaraman
  • Publication number: 20230156793
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for signaling parameters for peer-to-peer communications in a wireless network. One aspect provides a method for wireless communications at an access point (AP). The method generally includes: obtaining, from an access point (AP), a transmission opportunity (TXOP) sharing trigger indicating a duration in which a TXOP is shared by the wireless station and one or more other devices; relaying, to the one or more other devices, information identifying parameters for wireless communications between the wireless station and the one or more other devices; and during the TXOP, communicating with the one or more other devices based on the parameters for wireless communications between the wireless station and the one or more other devices.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Inventors: Abdel Karim AJAMI, Yanjun SUN, George CHERIAN, Sai Yiu Duncan HO, Alfred ASTERJADHI, Abhishek Pramod PATIL, Gaurang NAIK
  • Patent number: 11653394
    Abstract: This disclosure provides methods, devices and systems for synchronized channel access. Some implementations more specifically relate to facilitating coexistence among wireless communication devices that support synchronized channel access and those that do not. A group of access points may schedule periodically recurring, synchronized channel access periods by periodically transmitting quiet elements. The quiet elements establish recurring quiet periods during which legacy devices are not permitted to transmit. In some implementations, an access point may transmit one or more quiet override elements each associated with a respective quiet element and indicating to other access points supporting synchronized channel access that they are permitted to contend for access during the respective quiet period.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: May 16, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Alfred Asterjadhi, Lochan Verma, George Cherian, Abhishek Pramod Patil, Sai Yiu Duncan Ho
  • Publication number: 20230146138
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for signaling between an access point (AP) multi-link device (MLD) and a non-AP MLD that support multi-link communication in a wireless local area network (WLAN). In some implementations, a multi-link association may include a first link (referred to as an anchor link) and one or more other links (referred to as auxiliary links). The signaling may include control information to activate or deactivate auxiliary links dynamically based on communication load, throughput requirements, or quality of service (QoS). The signaling also may include requests, acknowledgments, or negotiation regarding multi-link connections. Furthermore, signaling and timing information may be used to coordinate when auxiliary links are used for communication or when to promote an auxiliary link to an anchor link.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 11, 2023
    Inventors: Alfred Asterjadhi, Abhishek Pramod Patil, George Cherian, Sai Yiu Duncan Ho, Lochan Verma
  • Publication number: 20230140991
    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for increasing local area network (LAN) device privacy. One aspect provides a method for wireless communications at an access point (AP). The method generally includes: determining a mapping between a first distribution system (DS) medium access control (MAC) address and a second DS MAC address; obtaining, from a source access terminal, a frame having the second DS MAC address; and sending at least a portion of the frame to a target access terminal based on the mapping between the first MAC address and the second MAC address.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 11, 2023
    Inventors: Philip Michael HAWKES, George CHERIAN, Sai Yiu Duncan HO, Jouni Kalevi Malinen
  • Publication number: 20230144291
    Abstract: Certain aspects of the present disclosure relate to wireless communications and, more particularly, to multi-link communications. A method that may be performed by an access point (AP) multi-link device (MLD) includes establishing a plurality of links for communication with a non-AP MLD, wherein one or more non-AP MLDs, including the non-AP MLD, communicate with the AP on each link of the plurality of links and taking one or more actions designed to ensure that the non-AP MLD is able to receive a group addressed frame. The non-AP MLD is operating in an enhanced multi-link single radio (EMLSR) mode.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 11, 2023
    Inventors: Gaurang NAIK, Abhishek Pramod PATIL, Alfred ASTERJADHI, George CHERIAN, Sai Yiu Duncan HO, Yanjun SUN, Abdel Karim AJAMI
  • Publication number: 20230140312
    Abstract: This disclosure provides methods, devices and systems for protecting latency-sensitive communications during restricted target wake time (r-TWT) service periods (SPs). Some implementations more specifically relate to coordinated scheduling of r-TWT SPs between OBSSs. In some aspects, a first AP may coordinate with a second AP in scheduling r-TWT SPs so that latency-sensitive traffic in a first BSS does not interfere or collide with latency-sensitive traffic in a second BSS overlapping the first BSS. In some implementations, the first and second APs may schedule their respective r-TWT SPs to be orthogonal in time. In some other implementations, the first and second APs may schedule their r-TWT SPs to overlap in time, while allocating coordinated resources to concurrent or overlapping latency-sensitive traffic in the first and second BSSs (such as in accordance with one or more multi-AP coordination techniques).
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Inventors: Abdel Karim Ajami, Sai Yiu Duncan Ho, George Cherian, Alfred Asterjadhi, Abhishek Pramod Patil, Yanjun Sun, Gaurang Naik
  • Publication number: 20230137826
    Abstract: This disclosure provides systems and methods for requesting wireless resources for peer-to-peer (P2P) communications. In some implementations, a wireless communication device transmits a frame over a wireless medium to an access point (AP), the frame including a medium access control (MAC) header carrying a request for the AP to allocate part of a transmission opportunity (TXOP) for P2P communications between the wireless communication device and a client device. The wireless communication device receives a trigger frame allocating a portion of the TXOP for the P2P communications, and transmits or receives P2P data to or from the client device over the wireless medium during the allocated portion of the TXOP. In some instances, the MAC header of the frame includes a Quality-of-Service (QoS) Control field carrying the request. In some other instances, the MAC header of the frame includes an Aggregated-Control (A-Control) subfield carrying the request.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 4, 2023
    Inventors: Abdel Karim AJAMI, Sai Yiu Duncan HO, George CHERIAN, Alfred ASTERJADHI, Abhishek Pramod PATIL, Yanjun SUN, Gaurang NAIK
  • Patent number: 11638280
    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for managing uplink access in a wireless local area network. A station (STA) may inform an access point (AP) of uplink quality of service (QoS) parameters for a traffic flow from the STA. The AP may control uplink resources to satisfy the QoS parameters. For example, the AP may select from among different access modes (including a single user (SU) access mode, an uplink multi-user (UL-MU) scheduled access mode, a multi-user enhanced distributed controlled access (MU EDCA) access mode, or a low latency (LL) access mode). The AP may cause the STA to use a SU access mode or the LL access mode if the UL-MU scheduled access mode and the MU EDCA access mode are not sufficient to satisfy the uplink QoS parameters for the traffic flow.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 25, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alfred Asterjadhi, Abhishek Pramod Patil, Lochan Verma, George Cherian
  • Publication number: 20230121644
    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus generally includes a processing system configured to generate a frame for triggering transmission of a plurality of data units from a plurality of wireless nodes, a first interface configured to output the frame for transmission to the plurality of wireless nodes, and a second interface configured to obtain the plurality of data units after outputting the frame for transmission, wherein the plurality of data units have different lengths.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: Alfred ASTERJADHI, George CHERIAN, Abhishek Pramod PATIL, Bin TIAN