Patents by Inventor Sandip Homchaudhuri

Sandip Homchaudhuri 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: 20240057062
    Abstract: This disclosure provides methods, devices and systems for reducing power consumption in neighbor awareness networking (NAN) devices. Some implementations more specifically relate to dynamically adjusting a NAN device link (NDL) schedule to reduce the idle duration of a NAN data interface (NDI). The NDL schedule identifies a number of NAN slots, per discovery window (DW) interval, during which an NDL is available for data communications between NAN devices. In some aspects, a NAN device may measure congestion on the wireless channel during each NAN slot within a DW interval and may dynamically update the NDL schedule based on the measured congestion. In some other aspects, a NAN device may measure throughput on the NDL during each NAN slot within a DW interval and may dynamically update the NDL schedule based on the measured throughput.
    Type: Application
    Filed: February 9, 2022
    Publication date: February 15, 2024
    Inventors: Sandip HOMCHAUDHURI, Sudhanshu SINGH, Kenneth Marvin GAINEY, Alireza RAISSINIA
  • Patent number: 11903017
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low-latency communications in wireless networks. In some implementations, a wireless station (STA) may transmit a data session request to a root access point (AP) in a wireless network responsive to activating an application associated with latency restricted (LR) data traffic. In some aspects, the data session request may indicate one or more preferred channels to carry the LR data traffic. In some other aspects, the data session request may indicate one or more preferred times to exchange the LR data traffic. In some implementations, the root AP may establish an LR data path with the STA based on the preferred time or frequency resources indicated in the data session request. The LR data path may include time or frequency resources that are reserved for LR data traffic between the root AP and the STA.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaolong Huang, Srinivas Katar, Andrew MacKinnon Davidson, Sandip Homchaudhuri, Qi Xue, Neelakantan Nurani Krishnan, Simon Jan Brand
  • Publication number: 20240049308
    Abstract: This disclosure provides systems, methods and apparatus for synchronous channel access control of a wireless system. In some aspects, a device may use a TWT session to communicate with a second device during one or more TWT service periods. Uplink and downlink communications may be coordinated to both be in a TWT service period to allow a device to enter a low power mode outside of the TWT service period. The TWT session, including the service periods, may be configured and managed by the device or the second device to ensure the communications associated with an XR experience between the devices (such as pose data frames or tracking frames provided as uplink data and video data frames provided as downlink data) meet latency requirements or other requirements for the XR experience. Use of TWT service periods allows other devices to use the wireless medium outside of the TWT service periods.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Inventors: Qi XUE, Srinivas KATAR, Chao ZOU, Naveen GANGADHARAN, Neelakantan NURANI KRISHNAN, Sandip HOMCHAUDHURI, Xiaolong HUANG, Anish ASHOK
  • Publication number: 20240022955
    Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a first signal including an indication of a set of frequency channels for a set of target wake time (TWT) sessions that recur according to a service interval. In some examples, the first signal may indicate a respective frequency channel of the set of frequency channels for each TWT session of the set of target wake time sessions. Each TWT session of the set of TWT sessions may have an associated service period that the STA may be in an awake state. The STA may switch, for the first TWT session, from the first frequency channel to the second frequency channel. In some examples, based on the switching, the STA may communicate a signal during a service period associated with the first TWT session over the second frequency channel.
    Type: Application
    Filed: July 10, 2023
    Publication date: January 18, 2024
    Inventors: Srikant KUPPA, Sandip HOMCHAUDHURI, Yongchun XIAO, Hao-Jen CHENG
  • Patent number: 11856536
    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: December 26, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Abhishek Pramod Patil, Yongchun Xiao, Ravi Gidvani, Sandip HomChaudhuri, Pradeep Kumar Yenganti, Arul Davidson Emmanuel, James Simon Cho, Padmanabhan Venkataraman Karthic, George Cherian, Alfred Asterjadhi, Jouni Kalevi Malinen
  • Publication number: 20230413208
    Abstract: This disclosure provides methods, devices and systems for performing a single-sided ranging operation. In some implementations, a first device transmits a first frame to a wireless station (STA), and receives a second frame from the STA responsive to the first frame. The first device obtains information indicating a time period between transmission of the first frame and reception of the second frame by the first device, and obtains information indicating time delays associated with a plurality of second devices, where each of the time delays is between respective receptions of the first frame and the second frame by a respective one of the second devices. The first device obtains a position of the STA based on the time period, the time delays associated with the plurality of second devices, and signal propagation times between the first device and each of the plurality of second devices.
    Type: Application
    Filed: June 20, 2022
    Publication date: December 21, 2023
    Inventors: James Simon CHO, Xiaoxin ZHANG, Sandip HOMCHAUDHURI, Alireza RAISSINIA
  • Publication number: 20230379979
    Abstract: This disclosure provides systems, methods and apparatus for asynchronous channel access control of a wireless system. In some aspects, a device may adjust the priority of one or more PPDUs and may perform other operations to ensure control of a wireless medium at certain times while still allowing for other devices to communicate on the wireless medium. For example, the device may adjust a backoff counter or one or more EDCA parameters to ensure obtaining control of the wireless medium to transmit a first PPDU of an application file. For one or more subsequent PPDUs of the application file, the device may again adjust a backoff counter or one or more EDCA parameters to allow other devices to obtain control of the wireless medium in certain scenarios (such as a second device to provide information back to the device or to otherwise transmit using the shared wireless medium).
    Type: Application
    Filed: May 22, 2023
    Publication date: November 23, 2023
    Inventors: Qi XUE, Srinivas KATAR, Chao ZOU, Naveen GANGADHARAN, Neelakantan NURANI KRISHNAN, Sandip HOMCHAUDHURI, Xialong HUANG, Anish ASHOK
  • Publication number: 20230362811
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an access point may start a target wake time (TWT) service period (SP). The access point may receive an end of SP (EOSP) indication from a station. The access point may stop the TWT SP before a scheduled end of the TWT SP based on receiving the EOSP indication. Numerous other aspects are described.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 9, 2023
    Inventors: Srikant KUPPA, Sandip HOMCHAUDHURI, Yongchun XIAO, Srinivas KATAR, Rong HE, Ahmed Ragab ELSHERIF
  • Patent number: 11811525
    Abstract: The present disclosure provides techniques for rate adaptation under congestion and latency constraints. The approaches described herein focus on aspects of latency, reliability, and power consumption instead of the traditional aspect of throughput. In an example, a method for rate adaptation is disclosed. The method may include determining whether to transmit a new packet or a retry packet. The method may also include reducing a maximum rate for a rate search in response to determining to transmit the retry packet. The method may further include transmitting the retry packet based on the reduced maximum rate.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 7, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Sandip Homchaudhuri, Pavankumar Veerashetty, Vincent Knowles Jones, IV, Srinivas Katar, Jian Tao, Rahul Jammula
  • Publication number: 20230354298
    Abstract: This disclosure provides methods, devices and systems for reducing beacon bloat, inefficient spectrum use, and coupling of multi-link transmission element (MLTE) with a traffic indication map (TIM) element. In certain aspects, an MLTE may be transmitted by an access point (AP) multi-link device (MLD) in a frame separate from the beacon frame to reduce the size of the beacon frame. In such an example, the beacon frame may provide an indication to a non-AP MLD that is should remain awake to receive data. In certain aspects, the AP may transmit multiple MLTEs to reduce the amount of bandwidth used for MLTE transmission by cutting out non-AP MLDs and other stations (STAs) that do not have buffered data. In certain aspects, the AP may assign each non-AP MLD capable of transmission identifier (TID)-to-link mapping (TID2LM) with a per-link traffic indication bitmap (PLTIB) to decouple the MLTE from the TIM element.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 2, 2023
    Inventors: Gyanranjan HAZARIKA, Krishna Chaitanya RAO, Abhishek Pramod PATIL, Kiran VENKATAPPA, Sandip HOMCHAUDHURI, Srinivas PITLA, Shashikala Baila PRABHU, Krishnakumar MUTHUSAMY
  • Publication number: 20230344678
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a sensing device may transmit a first Layer 2 (L2) data packet that includes a Layer 2.5 (L2.5) frame. The sensing device may receive a second L2 data packet that includes a response to the L2.5 frame. Motion data indicating whether an object is moving may be generated based at least in part on a channel frequency response associated with receiving the second L2 data packet. Numerous other aspects are described.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 26, 2023
    Inventors: Sandip HOMCHAUDHURI, Xiaoxin ZHANG, Harinder SINGH
  • Publication number: 20230345306
    Abstract: Certain aspects of the present disclosure provide techniques that may allow a device participating in a setup procedure to efficiently propose a range of values for a negotiated parameter. The techniques may reduce setup time, for example, allowing a responder to accept a value within the proposed range which may eliminate overhead associated with some of the back and forth message exchange of typical negotiations.
    Type: Application
    Filed: June 28, 2023
    Publication date: October 26, 2023
    Inventors: Alfred ASTERJADHI, George CHERIAN, Abhishek Pramod PATIL, Yongchun XIAO, Srinivas KATAR, Sandip HOMCHAUDHURI
  • Patent number: 11800572
    Abstract: This disclosure provides systems, methods and apparatus for synchronous channel access control of a wireless system. In some aspects, a device may use a TWT session to communicate with a second device during one or more TWT service periods. Uplink and downlink communications may be coordinated to both be in a TWT service period to allow a device to enter a low power mode outside of the TWT service period. The TWT session, including the service periods, may be configured and managed by the device or the second device to ensure the communications associated with an XR experience between the devices (such as pose data frames or tracking frames provided as uplink data and video data frames provided as downlink data) meet latency requirements or other requirements for the XR experience. Use of TWT service periods allows other devices to use the wireless medium outside of the TWT service periods.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: October 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Qi Xue, Srinivas Katar, Chao Zou, Naveen Gangadharan, Neelakantan Nurani Krishnan, Sandip Homchaudhuri, Xiaolong Huang, Anish Ashok
  • Publication number: 20230333241
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may transmit an indication of a media access control (MAC) address associated with an access point to a group of access points included in a network. The network node may receive single-sided round-trip-time (RTT) data associated with a user device associated with the access point, wherein the single-sided RTT data is received from each of the group of access points based at least in part on transmitting the indication of the MAC address to the group of access points. The network node may determine a location of the user device based at least in part on the single-sided RTT data. The network node may transmit an indication of the location of the user device to the access point. Numerous other aspects are described.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 19, 2023
    Inventors: Xiaoxin ZHANG, Sandip HOMCHAUDHURI, James Simon CHO, Nicholas KUCHAREWSKI, Vincent Knowles JONES
  • Publication number: 20230337217
    Abstract: This disclosure provides methods, devices and systems for provisioning resources for wireless communications. Some implementations more specifically relate to provisioning such resources based on a mapping of wireless communication devices to a number of time sectors that occur periodically and do not overlap other time sectors. In some aspects, each wireless stations (STAs) in a basic service set (BSS) may be mapped to a respective time sector based on attributes associated with the BSS so that communications between a STA and its associated access point (AP) can only occur within the respective time sector(s) to which the STA is mapped. In some other aspects, each AP in a multi-AP environment may be mapped to a respective time sector based on attributes associated with the multi-AP environment so that communications between an AP and its associated STAs can only occur within the respective time sector(s) to which the AP is mapped.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Nicholas KUCHAREWSKI, Ahmed Ragab Elsherif, Simon Jan Brand, Srinivas Katar, Xiaolong Huang, Sandip Homchaudhuri, Harinder Singh
  • Publication number: 20230337059
    Abstract: Systems and methods for selectively enabling multi-user (MU) communications are disclosed. In some implementations, an access point (AP) obtains packets associated with a traffic flow, and obtains at least one of service-level agreement (SLA) parameters associated with the traffic flow, attributes of the traffic flow, or network parameters associated with a basic service set (BSS) that includes the AP. The AP provides an indication of whether the traffic flow is suitable for transmission as a single-user (SU) multiple-input multiple output (MIMO) (SU-MIMO) communication, as an MU-MIMO communication, as an orthogonal frequency division multiple access (OFDMA) communication, or as a partial bandwidth (BW) MU-MIMO communication to a WLAN subsystem of the AP, the indication being based on one or more of the SLA parameters, the traffic flow attributes, or the network parameters. The AP initiates transmission of the one or more packets based on the indication.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Ahmed Ragab ELSHERIF, Nicholas KUCHAREWSKI, Simon Jan BRAND, Srinivas KATAR, Xiaolong HUANG, Sandip HOMCHAUDHURI, Nathaniel David HOUGHTON, Aravind SEETHARAMAN
  • Publication number: 20230337044
    Abstract: An AP obtains service-level agreement (SLA) parameters indicating at least a delay bound for each of a plurality of traffic flows. The AP receives first packets of a first traffic flow, and delays their transmission for a delay period based on the data carried in the first packets being less than a first threshold. During the delay period, the AP receives second packets of the first traffic flow while also receiving packets of a second traffic flow, groups the second traffic flow with the first traffic flow for an MU-MIMO transmission based on the data carried in the first and second packets of the first traffic flow being greater than the first threshold and the data carried in the packets of the second traffic flow being greater than a second threshold, and transmits the first and second packets traffic flows as an MU-MIMO communication.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Nicholas KUCHAREWSKI, Ahmed Ragab ELSHERIF, Simon Jan BRAND, Srinivas KATAR, Sandip HOMCHAUDHURI
  • Publication number: 20230319691
    Abstract: This disclosure provides methods, devices, and systems for performing passive scanning operations on one or more wireless channels. In some implementations, a wireless communication device configures an off-channel scan time and a passive scanning period for passive scanning operations based on latency requirements of a low-latency application, and selects a home channel dwell time for the passive scanning operations. The wireless communication device may perform the passive scanning operation by alternating between listening for beacon frames on one or more second wireless channels for the configured off-channel scan time and dwelling on a home channel for the selected home channel dwell time during a first portion of the configured scanning period. The wireless communication device also may listen for beacon frames on the one or more second wireless channels during a second portion of the configured scanning period that is defined by the selected home channel dwell time.
    Type: Application
    Filed: February 23, 2021
    Publication date: October 5, 2023
    Inventors: Sandip HOMCHAUDHURI, Alireza RAISSINIA, Javier DEL PRADO PAVON, Shuibing DAI, Zhao LI, Vikram PHOGAT, Prasanna BASARALU SUBRAMANYA
  • Patent number: 11778645
    Abstract: An 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, one or more secondary change sequence fields, and a critical update flag subfield. The first change sequence field carries a value of the most-recent critical update for the first AP. The one or more secondary change sequence fields carry values of the most-recent critical updates for the one or more respective secondary APs. The critical update flag subfield carries an indication of a change in value of at least one of the secondary change sequence fields. The first AP transmits the frame over the first communication link of the AP MLD.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: October 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Abhishek Pramod Patil, George Cherian, Alfred Asterjadhi, Sai Yiu Duncan Ho, Yanjun Sun, Sandip Homchaudhuri, Yongchun Xiao
  • Patent number: 11758433
    Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a first signal including an indication of a set of frequency channels for a set of target wake time (TWT) sessions that recur according to a service interval. In some examples, the first signal may indicate a respective frequency channel of the set of frequency channels for each TWT session of the set of target wake time sessions. Each TWT session of the set of TWT sessions may have an associated service period that the STA may be in an awake state. The STA may switch, for the first TWT session, from the first frequency channel to the second frequency channel. In some examples, based on the switching, the STA may communicate a signal during a service period associated with the first TWT session over the second frequency channel.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: September 12, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Srikant Kuppa, Sandip Homchaudhuri, Yongchun Xiao, Hao-Jen Cheng