Patents by Inventor Sudheer A. Grandhi

Sudheer A. Grandhi 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: 10447386
    Abstract: A method and apparatus may be used to broadcast a first beacon and a second beacon in a beacon interval. The first beacon may include an indicator that indicates whether a second beacon will be transmitted within the beacon interval. The first beacon may be a legacy beacon and the second beacon may be a non-legacy beacon. A legacy beacon may be decodable by any station (STA) and a non-legacy beacon may be decodable only by non-legacy STAs.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 15, 2019
    Assignee: InterDigital Technology Corporation
    Inventors: Sudheer A. Grandhi, Arty Chandra, Joseph S. Levy, Kamel M. Shaheen, Stephen E. Terry, Eldad M. Zeira
  • Publication number: 20190313448
    Abstract: Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Bhaskar M. Anepu, Sudheer A. Grandhi, Xiaofei Wang
  • Patent number: 10389675
    Abstract: Methods and systems are disclosed for user interfaces and associated processes in email communication. In some embodiments, information such as address-context information of an email message is rendered to aid the user in various user interface scenarios. These scenarios include user interfaces for the Reply All command and the Send command. A Prompt is provided on the user interface in some embodiments for the usage of commands such as the Reply All command and Send command. The activation of the Reply All command in some embodiments is enabled with a predefined gesture on the user interface that is different from that used for other commands such as the Reply command. In other embodiments the gesture required for the activation of the Send command is changed based on the command that was activated to create the email message to be sent.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: August 20, 2019
    Inventor: Sudheer A. Grandhi
  • Patent number: 10375635
    Abstract: A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: August 6, 2019
    Assignee: InterDigital Technology Corporation
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Robert L. Olesen
  • Patent number: 10375596
    Abstract: A method for MU MIMO channel sounding by a STA includes receiving, from an AP, sounding information including an indication of a first STA of a group of STAs to transmit feedback and training symbols. The method further includes receiving, from the AP, a frame addressed to the group of STAs, wherein the frame includes a PHY preamble including group identification information identifying the group of STAs. The group identification information enables another STA not in the group of STAs, that receives the frame, to set its network allocation vector (NAV) timer based on a duration field in the frame. On a condition the STA is a first STA in the order of the group of STAs, a first sounding response frame may be transmitted to the AP, wherein the first sounding response frame includes quantized sounding feedback determined from the received training symbols.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 6, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Publication number: 20190239261
    Abstract: A method performed by a STA may comprise transmitting a first ANQP message to an AP and receiving a second ANQP message in response. The second ANQP message may comprise a CCC value representing a configuration instance of the AP which is incremented by one upon a configuration change. The CCC value may wrap around once a maximum value is reached. The first ANQP message may comprise the CCC value or may comprise another CCC value which is different than the CCC value.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • Patent number: 10366428
    Abstract: A networked communication system allows a vendor that maintains a website to prioritize, select, and establish human-assisted interaction with visitors to the website. The vendor's human help agents are provided with intuitive interfaces that depict visitor priority based on agent-specific ranking rules. Agents can manage these rules to optimize their performance in responding to visitors, and thus improve the quality of visitors' experiences.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: July 30, 2019
    Assignee: Zoho Corporation Private Limited
    Inventors: Jeri John Prabhu Devageorge, Manikandan Vembu, Sudheer A Grandhi
  • Publication number: 20190215054
    Abstract: A method for receiving data, by an end-STA from a root AP, may comprise receiving, from a relay AP, a first beacon frame comprising a relay information element. The relay information element may include a field which indicates whether a root AP BSSID field indicating a BSSID of the root AP is included in the beacon frame. The end-STA may transmit an association request to the relay AP and may receive an association response from the relay AP if the relay AP is allowed by the root AP to associate with the end-STA. The end-STA may receive, from the relay AP, traffic indication map (TIM) indications, of which at least one of the TIM indications may be for the end-STA. The one of the TIM indications may indicate that the data is available for the end-STA. The end-STA may then receive the data from the relay AP.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Guodong Zhang, Xiaofei Wang, Hanqing Lou, Sudheer A. Grandhi
  • Publication number: 20190215764
    Abstract: A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS).
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Sudheer A. Grandhi, Lei Wang, Guodong Zhang, Xiaofei Wang, Monisha Ghosh, Hanqing Lou
  • Patent number: 10334626
    Abstract: Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 25, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Bhaskar M. Anepu, Sudheer A. Grandhi, Xiaofei Wang
  • Publication number: 20190174407
    Abstract: A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 6, 2019
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Arty Chandra
  • Patent number: 10275203
    Abstract: A system and method for communicating a multimedia presentation between a presenter and an audience is described. Services provided via a network facilitate the communication, and include real-time determination of remaining portions of a presentation responsive to “on the fly” presentation modifications, automated filtering and prioritization of audience feedback to a presenter, and integration with one or more customer data resources.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: April 30, 2019
    Assignee: Zoho Corporation Private Limited
    Inventors: Bharath Sridhar, Manikandan Vembu, Ramakrishna Raju Vegesna, Vijaykumar Rajendran, Rajendran Dandapani, Sridhar Vembu, Karthikeyan Jambulingam, Sudheer A. Grandhi
  • Publication number: 20190124579
    Abstract: A method and apparatus are disclosed for enabling very high throughput (VHT) communications. A wireless transmit and receive unit (WTRU) may receive, from an access point (AP), a management frame comprising VHT capabilities information. The VHT capabilities information may comprise an indication of support for reception via non-contiguous channels. The WTRU may transmit, on a condition that reception via non-contiguous channels is supported, at least one data packet, to the AP, via multiple non-contiguous channels. The multiple non-contiguous channels may be used simultaneously.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Publication number: 20190109681
    Abstract: Method and apparatus for transmission and reception of a Greenfield preamble are provided. In the method and apparatus, the Greenfield preamble may be a single user (SU) preamble or a multi user (MU) preamble. As an MU preamble, the Greenfield preamble includes a short training field (STF), a first long training field (LTF), a first signal (SIG) field, at least one additional LTF, and a second SIG field. Additionally, the Greenfield preamble may be utilized for efficient transmission and reception of control information to wireless devices, whereby the control information may be indicated using the STF, the first LTF, or the first or second SIG fields.
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Monisha Ghosh, Nirav B. Shah, Sudheer A. Grandhi, Ronald G. Murias, Guodong Zhang, Xiaofei Wang, Hanqing Lou, Robert L. Olesen
  • Patent number: 10257868
    Abstract: A power saving method performed by a STA may comprise receiving, from an AP, a first beacon comprising a CCC value. The CCC value may be an integer value that represents a configuration instance of the AP. The STA may return from a power saving mode upon receiving the first beacon and receive a second beacon from the AP. The second beacon may be a primary beacon of the AP. The first beacon may comprise an SSID of the AP. The STA may perform an association procedure with the AP upon receiving the first beacon.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 9, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • Patent number: 10236967
    Abstract: A method and apparatus for use in an IEEE 802.11 root access point (AP) are provided. The method may comprise transmitting, from the root AP to the R-AP, an indication of a number of end-STAs which the R-AP is allowed to associate with. A first message may be received, from the R-AP that enables the root AP to associate the end-STA with the R-AP, the first message including: an indication of a number of information fields in the first message and a number of information fields identified by the indication of the number of information fields. Each information field may include a unique identifier associated with a respective indicated end-STA associated with the R-AP. A second message may be transmitted for the end-STA, from the root AP to the R-AP, and the second message may include the unique identifier.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: March 19, 2019
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Guodong Zhang, Xiaofei Wang, Hanqing Lou, Sudheer A. Grandhi
  • Patent number: 10237818
    Abstract: A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS).
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 19, 2019
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Sudheer A. Grandhi, Monisha Ghosh, Hanqing Lou, Lei Wang, Xiaofei Wang, Guodong Zhang
  • Publication number: 20190069237
    Abstract: A method and apparatus may be used in wireless communications. The apparatus may be an access point (AP), and may transmit a power save frame. The power save frame may include one or more Uplink (UL) Transmission Times (ULT)s. The apparatus may determine that a station (STA) did not transmit during its respective ULT. The AP may transmit another power save frame. The other power save frame may include a modified ULT. The modified ULT may be for a STA that did not transmit during its respective ULT. The other power save frame may include an unmodified ULT. The unmodified ULT may be for a STA that did not transmit.
    Type: Application
    Filed: October 29, 2018
    Publication date: February 28, 2019
    Applicant: InterDigital Technology Corporation
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Robert L. Olesen
  • Patent number: 10206168
    Abstract: A method and apparatus may be used for assigning groups of stations in wireless communications to one or more groups. Groups may be assigned by an access point (AP) based on information received from a station (STA). Group information may be signaled to each station and a group identifier may be indicated in a frame. The group information may be applied to a performance enhancement, for example power savings for the station, wherein the station enters a power saving mode on a condition that the station determines that it is not a member of the group.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: February 12, 2019
    Assignee: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Arty Chandra
  • Publication number: 20190037489
    Abstract: A method and apparatus for power savings in a wireless local area network (WLAN) are disclosed. A station (STA) may receive parameters that associate the STA to a specific group of STAs and perform a channel access during a period that is allowed for the group of STAs based on the parameters. The STA may receive information regarding an access slot that is allowed for the group of STAs and access a channel during the access slot. The STA may receive a schedule for wake up from a doze state and goes in and out of the doze state based on the schedule. A highest channel access priority may be provided to a sensor or meter type of STA. The STA may indicate to an access point (AP) that the STA will not listen to a traffic indication map (TIM) or a delivery TIM (DTIM) in a beacon.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 31, 2019
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Monisha Ghosh, Lei Wang, Nirav B. Shah, Guodong Zhang, Sudheer A. Grandhi