Patents by Inventor Madhan JAGANATHAN

Madhan JAGANATHAN 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: 20190208041
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a plurality of TCP ACKs, and at least one of TCP data or UDP data for a multi-user transmission to a set of STAs. The apparatus may allocate the plurality of TCP ACKs to a PPDU before allocating the at least one of the TCP data and the UDP data to the PPDU. In certain aspects, the plurality of TCP ACKs may be frequency division multiplexed in the PPDU. In certain other aspects, the apparatus may transmit, to the set of STAs, the multi-user transmission including at least the plurality of frequency division multiplexed TCP ACKs.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 4, 2019
    Inventors: Madhan JAGANATHAN, Xiaolong HUANG, Srinivas KATAR, Nathaniel David HOUGHTON, Madhavan NAIR, Hao ZHU, Chao ZOU
  • Publication number: 20190007114
    Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a method of wireless communication includes utilizing a sounding procedure to obtain compressed beamforming (CBF) information. The sounding procedure may be a single-user or multi-user sounding procedure. The CBF information may contain various information regarding a particular channel that an access point may use for transmission. The information may include per-tone SNR information which may be processed to determine characteristics of the channel. Various techniques may be utilized to determine the further characteristics of the channel. The determined characteristics of the channel may then be used to determine an appropriate guard interval (GI) between symbols that are to be transmitted. Appropriate GI selection in wireless communications may facilitate higher throughput while decreasing overhead due to unnecessary idle time.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventors: Madhan Jaganathan, Xiaoxin Zhang, Ahmed Ragab Elsherif
  • Patent number: 10171151
    Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a method of wireless communication includes utilizing a sounding procedure to obtain compressed beamforming (CBF) information. The sounding procedure may be a single-user or multi-user sounding procedure. The CBF information may contain various information regarding a particular channel that an access point may use for transmission. The information may include per-tone SNR information which may be processed to determine characteristics of the channel. Various techniques may be utilized to determine the further characteristics of the channel. The determined characteristics of the channel may then be used to determine an appropriate guard interval (GI) between symbols that are to be transmitted. Appropriate GI selection in wireless communications may facilitate higher throughput while decreasing overhead due to unnecessary idle time.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 1, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Madhan Jaganathan, Xiaoxin Zhang, Ahmed Ragab Elsherif
  • Publication number: 20180324801
    Abstract: Apparatuses and methods for reducing channel correlation between wireless nodes are disclosed. An apparatus may receive channel state information (CSI) from each of a plurality of wireless nodes and determine, for each of the plurality of wireless nodes, a level of channel correlation with other wireless nodes based, at least in part, on the received CSI. The apparatus may identify one or more of the plurality of wireless nodes for which the determined level of channel correlation is greater than or equal to a value, and then generate, for at least one of the identified wireless nodes, an instruction requesting at least one of the identified wireless nodes to adjust a parameter by an amount based on the determined level of channel correlation. The apparatus may provide the instruction for transmission to the at least one of the identified wireless nodes.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 8, 2018
    Inventors: BadriSrinivasan Sampathkumar, Madhan Jaganathan, Ahmed Ragab Elsherif
  • Publication number: 20180295573
    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may communicate with a plurality of stations in a basic service set (BSS) according to a target wakeup time (TWT) slot duration. The AP may identify one or more congestion or interference factors for the BSS. In some cases, the AP may identify a congestion score based at least in part on at least one of the one or more congestion factors from one or more stations that can be part of its own BSS, and an interference score based at least in part on at least one of the one or more interference factors form one or more stations that are not part of AP's BSS. In some cases, the AP may modify the TWT slot duration based at least in part on the congestion score and the interference score.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 11, 2018
    Inventors: Ravi Gidvani, Sandip HomChaudhuri, Zhanfeng Jia, BadriSrinivasan Sampathkumar, Alireza Raissinia, Srinivas Katar, Madhan Jaganathan, Xiaolong Huang
  • Publication number: 20180242344
    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus may be configured to determine a scheduling metric for each respective station of a plurality of stations. The scheduling metric for each station may be based on an effective spatial-time-frequency physical layer (PHY) capability for the station and a consumption rate of spatial-time-frequency resources by the respective station. The effective spatial-time-frequency PHY capability for the station may be a product of a target percentage of spatial-time resources allocated to the station, an effective number of spatial streams supported by the respective station, and a maximum bandwidth. The consumption rate of spatial-time-frequency resources may be a transmit opportunity (TXOP) moving average of consumption rate by the station.
    Type: Application
    Filed: February 16, 2018
    Publication date: August 23, 2018
    Inventors: Xiaolong Huang, Madhan Jaganathan, Nathaniel David Houghton, Madhavan Nair, Srinivas Katar, Ahmed Ragab Elsherif
  • Publication number: 20180035366
    Abstract: Various aspects of the disclosure relate to determining whether a signal detection function is properly detecting for a signal. In an example implementation, the signal detection function detects radar signals. If the signal detection function is not functioning as desired, communication on at least one wireless communication channel may be disabled.
    Type: Application
    Filed: December 8, 2016
    Publication date: February 1, 2018
    Inventors: Mahboobul Alem, Madhan Jaganathan, Benjamin Gibbs, Suresh Nethirananthan, Ramachandran Kandasamy, Sriharsha Guntanoor
  • Publication number: 20170373789
    Abstract: A device includes a memory, a processor, and a transceiver. The memory is configured to store capability data corresponding to a set of stations. The processor is configured to select, based at least in part on the capability data, one of a multi-user multiple-input multiple-output (MU-MIMO) mode or an orthogonal frequency-division multiple access (OFDMA) mode for wireless communication with a subset of the set of stations. The transceiver is configured to wirelessly communicate with the subset in the selected one of the MU-MIMO mode or the OFDMA mode.
    Type: Application
    Filed: May 12, 2017
    Publication date: December 28, 2017
    Inventors: Xiaolong HUANG, Hao ZHU, Srinivas KATAR, Naveen GANGADHARAN, Madhan JAGANATHAN, Nathaniel David HOUGHTON, Sabita NAHATA, Raja BANERJEA, Alireza RAISSINIA, James CHO, Chao CHENG