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).

  • Group transmissions in wireless local area networks
    Patent number: 9585043
    Abstract: A method for channel sounding by an access point includes transmitting a sounding frame to a plurality of mobile stations (STAs). The sounding frame includes training symbols to be measured by each of the plurality of STAs. A sounding response frame is received from each of the plurality of STAs. The sounding response frame received from a first STA of the plurality of STAs is received at a short interframe spacing interval delay after completion of the sounding request frame transmission.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: February 28, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Method and apparatus of enabling multi band transmission
    Patent number: 9578615
    Abstract: A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: February 21, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Mohammed Sammour, Catherine M. Livet
  • Method and apparatus for enhancing RLC for flexible RLC PDU size
    Patent number: 9554398
    Abstract: Enhancements are provided for the radio link control (RLC) protocol in wireless communication systems where variable RLC packet data unit (PDU) size is allowed. When flexible RLC PDU sizes are configured by upper layers, radio network controller (RNC)/Node B flow control, RLC flow control, status reporting and polling mechanisms are configured to use byte count based metrics in order to prevent possible buffer underflows in the Node B and buffer overflows in the RNC. The enhancements proposed herein for the RLC apply to both uplink and downlink communications.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: January 24, 2017
    Assignee: InterDigital Technology Corporation
    Inventors: Diana Pani, James M. Miller, Paul Marinier, Stephen E. Terry, Sudheer A. Grandhi
  • Method and apparatus for providing peer-to-peer communication with network connection
    Patent number: 9521617
    Abstract: A method and apparatus may be used for peer-to-peer communication. The method and apparatus may allow for network connectivity during the peer-to-peer communication session. The network connectivity may be provided via Scheduled and/or Unscheduled AP Connection times/periods. A station (STA) may be configured to negotiate access point (AP) Connection times/periods with a peer STA for a direct link which may be on a basic service set (BSS) channel or on a non-BSS channel. The STAs may communicate with the AP during the agreed AP Connection times/periods and return to the direct link for peer-to-peer communication.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 13, 2016
    Assignee: InterDigital Patent Holdings Inc.
    Inventors: Sudheer A. Grandhi, Marian Rudolf
  • Method and apparatus for accelerated link setup
    Patent number: 9510375
    Abstract: A methods and apparatus may be used for accelerated link setup. A method may include a station (STA) acquiring information about an access point of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network in advance through a previously connected IEEE 802.11 interface and/or an interface other than the IEEE 802.11 network. The STA may use the acquired information during a link setup procedure between the STA and the access point. The information may include a suggestion for a specific procedure to complete the link setup procedure between the STA and the access point.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: November 29, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • METHODS AND APPARATUS FOR ENHANCING ELECTRONIC PRESENTATIONS WITH LOCATION INFORMATION
    Publication number: 20160328204
    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: Application
    Filed: July 19, 2016
    Publication date: November 10, 2016
    Inventors: Bharath Sridhar, Manikandan Vembu, Ramakrishna Raju Vegesna, Vijaykumar Rajendran, Rajendran Dandapani, Sridhar Vembu, Karthikeyan Jambulingam, Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS
    Publication number: 20160323802
    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: July 11, 2016
    Publication date: November 3, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR SUPPORTING MANAGEMENT ACTIONS FOR VERY HIGH THROUGHPUT IN WIRELESS COMMUNICATIONS
    Publication number: 20160301459
    Abstract: A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 13, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS
    Publication number: 20160295610
    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, a wireless transmit/receive unit (WTRU) may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with another device capable of operating in a 2 MHz bandwidth mode and a 1 MHz bandwidth mode. The WTRU may conduct a request-to-send (RTS)/clear-to-send (CTS) frame exchange in the second bandwidth mode, and truncate the TXOP by transmitting a contention free (CF)-End frame in the first and second bandwidth modes. In another scenario, an AP may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with a WTRU capable of both 2 MHz and 1 MHz bandwidth modes.
    Type: Application
    Filed: June 13, 2016
    Publication date: October 6, 2016
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Sudheer A. Grandhi, Bhaskar M. Anepu, Xiaofei Wang
  • METHODS AND APPARATUS FOR ENHANCING ELECTRONIC PRESENTATIONS
    Publication number: 20160266864
    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: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Vijaykumar Rajendran, Rajendran Dandapani, Sridhar Vembu, Karthikeyan Jambulingam, Sudheer A. Grandhi
  • METHOD AND APPARATUS OF ENABLING MULTI BAND TRANSMISSION
    Publication number: 20160227497
    Abstract: A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands.
    Type: Application
    Filed: April 5, 2016
    Publication date: August 4, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Mohammed Sammour, Catherine M. Livet
  • Method and apparatus for providing very high throughput operation and capability signaling for wireless communications
    Patent number: 9392524
    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: Grant
    Filed: June 8, 2015
    Date of Patent: July 12, 2016
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Outer loop power control for wireless communications
    Patent number: 9386531
    Abstract: A base station configured for outer loop power control receives an uplink dedicated channel transmission from a wireless transmit/receive unit. The base station transmits transmit power control commands in response to the received uplink channel transmission and determines if the wireless transmit/receive unit is in a discontinuous transmission mode. The base station adjusts a target SIR based on which transmission mode for the wireless transmit/receive unit is detected. The value for the transmit power control command is derived from the adjusted target SIR.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: July 5, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Chang-Soo Koo, Sudheer A. Grandhi, Stephen E. Terry
  • METHOD AND APPARATUS FOR VERSATILE MAC MULTIPLEXING IN EVOLVED HSPA
    Publication number: 20160183124
    Abstract: Methods and apparatus for versatile medium access control (MAC) multiplexing in evolved HSPA are disclosed. More particularly, methods for downlink optimization of the enhanced high speed MAC (MAC-ehs) entity and uplink optimization of the MAC-i/is entity are disclosed. Apparatuses for using the optimized downlink and uplink MAC entities are also disclosed.
    Type: Application
    Filed: March 2, 2016
    Publication date: June 23, 2016
    Applicant: InterDigital Technology Corporation
    Inventors: Paul Marinier, Diana Pani, Stephen E. Terry, Sudheer A. Grandhi
  • Method and apparatus for supporting management actions for very high throughput in wireless communications
    Patent number: 9374146
    Abstract: A method and apparatus may be used in Very High Throughput (VHT) Wireless Local Area Network (WLAN) management actions. Management action frames such as VHT Action frames may be used to implement VHT features in WLANs. Extensions to 802.11 Action frames may be used to support VHT features and provide backward compatibility. VHT Management Actions may be supported with VHT Action frames and VHT extensions to 802.11 Action frames in various categories such as Direct Link Setup (DLS), Public, Spectrum Management and high throughput (HT). An access point (AP) or a wireless transmit/receive unit (WTRU) may indicate VHT capability by way of signaling.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 21, 2016
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventor: Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR SENDING AND RECEIVING CHANNEL QUALITY INDICATORS (CQIs)
    Publication number: 20160173261
    Abstract: A method and apparatus for sending and receiving channel quality indicators (CQIs) is disclosed. A CQI may be periodically sent or received. A CQI may also be sent or received upon request by a network.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 16, 2016
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Rocco Di Girolamo, Christopher R. Cave, Paul Marinier, Sudheer A. Grandhi, Vincent Roy
  • Method and apparatus for supporting wideband and multiple bandwidth transmission protocols
    Patent number: 9369918
    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, a wireless transmit/receive unit (WTRU) may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with another device capable of operating in a 2 MHz bandwidth mode and a 1 MHz bandwidth mode. The WTRU may conduct a request-to-send (RTS)/clear-to-send (CTS) frame exchange in the second bandwidth mode, and truncate the TXOP by transmitting a contention free (CF)-End frame in the first and second bandwidth modes. In another scenario, an AP may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with a WTRU capable of both 2 MHz and 1 MHz bandwidth modes.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 14, 2016
    Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Sudheer A. Grandhi, Bhaskar M. Anepu, Xiaofei Wang
  • METHODS AND APPARATUS FOR ENHANCED COMMUNICATION IN EMAIL APPLICATIONS
    Publication number: 20160149848
    Abstract: A method and system for providing a communication stream for associating messages are described. A communication stream receives various message types including messages, posts, events, tasks, and comments, and presents them to users. Private messages relating to one or more messages may be sent between and among one or more users.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Inventors: Radha Vembu, Jagan Ranganathan, Ravikumar Govindarajan, Sridhar Vembu, Rajendran Dandapani, Bharath Sridhar, Sudheer A. Grandhi
  • Methods and Systems for Grouping and Prioritization of Website Visitors for Live Support
    Publication number: 20160140635
    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: Application
    Filed: November 16, 2015
    Publication date: May 19, 2016
    Inventors: Jeri John Prabhu Devageorge, Manikandan Vembu, Sudheer A. Grandhi
  • Method and apparatus of enabling multi band transmission
    Patent number: 9337891
    Abstract: A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 10, 2016
    Assignee: InterDigital Technology Corporation
    Inventors: Juan Carlos Zuniga, Sudheer A. Grandhi, Mohammed Sammour, Catherine M. Livet