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).

  • Method and apparatus for sending and receiving channel quality indicators (CQIs)
    Patent number: 10069614
    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: Grant
    Filed: February 16, 2016
    Date of Patent: September 4, 2018
    Assignee: InterDigital Technology Corporation
    Inventors: Rocco Di Girolamo, Christopher R. Cave, Paul Marinier, Sudheer A. Grandhi, Vincent Roy
  • METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENTS IN RESPONSE TO RECEIVED FRAMES
    Publication number: 20180241531
    Abstract: A method and apparatus for operation by an access point (AP) is provided. The method may comprise receiving a first frame from a first STA, the first frame including first data and receiving a second frame from a second STA, the second frame including second data. In response to the receiving, an acknowledgement (ACK) frame may be transmitted to the first STA and to the second STA. The ACK frame may be addressed to a broadcast address and include a field which indicates whether the ACK frame is a multiple traffic identifier (multi-TID) block ACK frame format or another ACK frame format.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Hanqing Lou, Monisha Ghosh, Sudheer A. Grandhi
  • Sending and reducing uplink feedback signaling for wireless transmission of data
    Patent number: 10057888
    Abstract: A wireless transmit/receive unit includes at least one processor that receives a high speed physical downlink shared channel, and in response, transmits at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information. The at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 21, 2018
    Assignee: InterDigital Technology Corporation
    Inventors: Christopher R Cave, Arty Chandra, Sudheer A Grandhi, Guang Lu, Paul Marinier, Guodong Zhang
  • POWER SAVING METHOD AND APPARATUS
    Publication number: 20180227968
    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: Application
    Filed: April 9, 2018
    Publication date: August 9, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • Method and apparatus for supporting management actions for very high throughput in wireless communications
    Patent number: 10045385
    Abstract: A method and apparatus may be used to establish a communication link between devices such as VHT access points (AP)s or VHT wireless transmit/receive units (WTRU)s. For example, an AP or a WTRU may transmit management action request frames such as Association, Direct Link Setup (DLS) or Tunneled Direct Link Setup (TDLS) request frames. The management action frame may include VHT Capability information of the AP or the WTRU. In response to the management action request frame, the receiving AP or WTRU may transmit management action response frames to establish a communication link. Existing 802.11 management action frames may be used to include the VHT Capability information. The VHT Capability information may be used to implement various VHT features such as channel configurations or Beamforming.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 7, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • SUPPORTING A LARGE NUMBER OF DEVICES IN WIRELESS COMMUNICATIONS
    Publication number: 20180115922
    Abstract: A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 26, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Lei Wang, Sudheer A. Grandhi, Guodong Zhang
  • METHOD AND APPARATUS FOR PROVIDING VERY HIGH THROUGHPUT OPERATION AND CAPABILITY SIGNALING FOR WIRELESS COMMUNICATIONS
    Publication number: 20180103410
    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 8, 2017
    Publication date: April 12, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Method and apparatus for accelerated link setup
    Patent number: 9942927
    Abstract: A method for performing active scanning by a non-AP STA may comprise transmitting, to a group of APs, one or more probe request frames and receiving in response, configuration chance count (CCC) values from first and second APs of the group of APs. The CCC values may be integer values that represent configuration instances of the respective APs. The CCC values may be stored in a memory of the non-AP STA. A determination may be made, based on the information stored in the memory, as to which AP is preferred. An association procedure may be performed with the preferred AP. Other disclosed methods employ passive scanning.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 10, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • Method and apparatus for enhancing RLC for flexible RLC PDU size
    Patent number: 9936423
    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: December 12, 2016
    Date of Patent: April 3, 2018
    Assignee: InterDigital Technology Corporation
    Inventors: Diana Pani, James M. Miller, Paul Marinier, Stephen E. Terry, Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS
    Publication number: 20180084580
    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: November 30, 2017
    Publication date: March 22, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Bhaskar M. ANEPU, Sudheer A. Grandhi, Xiaofei Wang
  • RANGE EXTENSION IN WIRELESS LOCAL AREA NETWORKS
    Publication number: 20180054250
    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: Application
    Filed: October 16, 2017
    Publication date: February 22, 2018
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Guodong Zhang, Xiaofei Wang, Hanqing Lou, Sudheer A. Grandhi
  • Method and apparatus for providing very high throughput operation and capability signaling for wireless communications
    Patent number: 9854498
    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: July 11, 2016
    Date of Patent: December 26, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventor: Sudheer A. Grandhi
  • Supporting a large number of devices in wireless communications
    Patent number: 9854469
    Abstract: A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 26, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Xiaofei Wang, Lei Wang, Guodong Zhang, Sudheer A. Grandhi
  • SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR WIRELESS TRANSMISSION OF DATA
    Publication number: 20170367083
    Abstract: A wireless transmit/receive unit includes at least one processor that receives a high speed physical downlink shared channel, and in response, transmits at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information. The at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information.
    Type: Application
    Filed: August 31, 2017
    Publication date: December 21, 2017
    Applicant: InterDigital Technology Corporation
    Inventors: Christopher R Cave, Arty Chandra, Sudheer A Grandhi, Guang Lu, Paul Marinier, Guodong Zhang
  • Method and apparatus for supporting wideband and multiple bandwidth transmission protocols
    Patent number: 9844075
    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 13, 2016
    Date of Patent: December 12, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Sudheer A. Grandhi, Bhaskar M. Anepu, Xiaofei Wang
  • METHOD AND APPARATUS FOR ACCELERATED LINK SETUP
    Publication number: 20170318614
    Abstract: A method for performing active scanning by a non-AP STA may comprise transmitting, to a group of APs, one or more probe request frames and receiving in response, configuration chance count (CCC) values from first and second APs of the group of APs. The CCC values may be integer values that represent configuration instances of the respective APs. The CCC values may be stored in a memory of the non-AP STA. A determination may be made, based on the information stored in the memory, as to which AP is preferred. An association procedure may be performed with the preferred AP. Other disclosed methods employ passive scanning.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 2, 2017
    Applicant: InterDigital Patent Holdings, Inc.
    Inventors: Lei Wang, Yousif Targali, Sudheer A. Grandhi, Xiaofei Wang, Guodong Zhang
  • Range extension in wireless local area networks
    Patent number: 9793975
    Abstract: A method for associating a new end-station (end-STA) with a relay access point (R-AP) in a relay transmission. An assignment of a new identifier is transmitted to the new end-STA, wherein traffic indication map indications for the new end-STA in a beacon from the R-AP follows the transmission of the new identifier assignment. A message is sent to a root access point (AP), the message including an indication of a number of information fields in the message and at least one information field, each of the at least one information fields including an identifier of one end-STA associated with the R-AP. An acknowledgement is received from the root AP on a condition that the root AP correctly receives the message and associates an identifier of the end-STA with an identifier of the R-AP.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: October 17, 2017
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Guodong Zhang, Xiaofei Wang, Hanqing Lou, Sudheer A. Grandhi
  • METHODS AND SYSTEMS FOR GROUPING AND PRIORITIZATION OF CUSTOMERS FOR LIVE SUPPORT
    Publication number: 20170287039
    Abstract: A networked communication system allows a vendor that maintains a website to prioritize, select, and establish human-assisted interaction with customers interacting with the website or navigating a brick-and-mortar store. The system maintains databases populated with customer-specific data, including experiential information that reflects past and current customer activity. The vendor's human help agents are provided with intuitive interfaces that rank customers using agent-specific ranking rules applied to user data and experiential information. The databases are updated responsive to user activity. Agents can manage ranking rules to optimize their performance in responding to customers and thus improve customer experience.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Inventors: Jeri John Prabhu Devageorge, Manikandan Vembu, Sudheer A. Grandhi
  • Sending and reducing uplink feedback signaling for wireless transmission of data
    Patent number: 9781706
    Abstract: A wireless transmit/receive unit includes at least one processor that receives a high speed physical downlink shared channel, and in response, transmits at least one random access channel preamble followed by ACK/NACK and channel quality indicator (CQI) information. The at least one random access channel preamble is selected from a set of random access preambles reserved for the ACK/NACK and CQI information.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 3, 2017
    Assignee: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Guodong Zhang, Christopher R. Cave, Guang Lu, Paul Marinier, Arty Chandra, Sudheer A. Grandhi
  • METHOD AND APPARATUS FOR EFFICIENT ADDRESSING AND POWER SAVINGS IN WIRELESS COMMUNICATIONS
    Publication number: 20170273021
    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: June 1, 2017
    Publication date: September 21, 2017
    Applicant: InterDigital Technology Corporation
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Arty Chandra