Patents by Inventor Ritesh K. Madan

Ritesh K. Madan 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: 20170111919
    Abstract: An example method is provided in one example embodiment and includes receiving performance metric information from a plurality of small cell radios, wherein the performance metric information includes, at least in part, a number of user equipment that are to be scheduled on a first type and a second type of subframes for each small cell radio; determining resource allocation parameters for the plurality of small cell radios; exchanging interference information between two or more small cell radios of the plurality of small cell radios that includes an indication of whether a particular small cell radio is interfering with or is interfered by another small cell radio of the two or more small cell radios; and scheduling downlink resource transmissions on the first type and the second type of subframes for user equipment served by the two or more small cell radios.
    Type: Application
    Filed: November 25, 2015
    Publication date: April 20, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
  • Publication number: 20170111926
    Abstract: An example method is provided in one example embodiment and includes receiving performance metric information from a plurality of small cell radios, wherein the performance metric information includes, at least in part, a number of user equipment that are to be scheduled on a first type and a second type of subframes for each small cell radio; determining resource allocation parameters for the plurality of small cell radios; exchanging interference information between two or more small cell radios of the plurality of small cell radios that includes an indication of whether a particular small cell radio is interfering with or is interfered by another small cell radio of the two or more small cell radios; and scheduling downlink resource transmissions on the first type and the second type of subframes for user equipment served by the two or more small cell radios.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 20, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
  • Publication number: 20170070323
    Abstract: An example method is provided in one example embodiment and includes receiving feedback information from at least one controlled cell indicative of interference received at one or more user equipment devices served by the at least one cell. The at least one controlled cell is controlled by an operator associated with the at least one controlled cell. The method further includes selecting one or more user equipment devices that is determined to have received interference from at least one non-controlled cell that is greater than a predetermined threshold. The at least one non-controlled cell is not controlled by the operator associated with the at least one controlled cell. The method still further includes determining a power level for a subset of common resources from among a set of common resources shared among the at least one controlled cell based upon the received feedback information.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 9, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar
  • Publication number: 20170041885
    Abstract: An example method is provided in one example embodiment and includes receiving an indication of an average signal power for a downlink connection between a cell and each of a plurality of user equipment devices associated with the cell, receiving an indication of an average interference measurement on the downlink connection between the cell and each of the plurality of user equipment devices associated with the cell, and computing an average spectral efficiency for each of the plurality of user equipment devices based upon the respective average signal power and average interference measurement. The method further includes determining a transmission power level from among a plurality of available transmission power levels for one or more downlink resources for each of the plurality of user equipment devices based upon the computed average spectral efficiency for each of the plurality of user equipment devices.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 9, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Vikram Chandrasekhar, Ritesh K. Madan, Rohit Umesh Nabar, Kedar Durgadas Shirali
  • Publication number: 20170041938
    Abstract: An example method is provided in one example embodiment and includes receiving a first message indicative of whether a first cell is non-interfering to at least one neighboring cell, determining whether the first cell is non-interfering to the at least one neighboring cell based upon the first message, and responsive to a determination that the first cell is not non-interfering to the at least one neighboring cells, reducing a power level of one or more downlink resources of a fractional frequency reuse portion of a frequency spectrum associated with the first cell.
    Type: Application
    Filed: August 3, 2015
    Publication date: February 9, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Rohit Umesh Nabar, Ritesh K. Madan
  • Publication number: 20170041939
    Abstract: An example method is provided in one example embodiment and includes receiving at least one performance metric from each of a plurality of cells, the at least performance metric associated with a downlink transmission from the cell to one or more user equipment devices associated with the cell. The method further includes determining a fraction of resources for allocation within a fractional frequency reuse portion of a frequency spectrum based upon the received at least one performance metric, and determining a fraction of the resources for allocation within a reuse one portion of the frequency spectrum based upon the determined fraction of resources for allocation within the fractional frequency reuse portion of the frequency spectrum.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 9, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali
  • Publication number: 20170034795
    Abstract: An example method is provided in one example embodiment and includes receiving at least one relative interference statistic from each of a plurality of cells, the at least one relative interference statistic associated with a relative interference of downlink transmission from the cell to a plurality of user equipment devices associated with the cell. The method further includes determining a power level for each of one or more resources within a fractional frequency reuse portion of a frequency spectrum based upon the at least one relative interference statistic received from each of the plurality of cells, and determining a power level for a reuse one portion of the frequency spectrum based upon the determined power level for each of the one or more resources within the fractional frequency reuse portion of the frequency spectrum.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 2, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventor: Ritesh K. Madan
  • Publication number: 20170026914
    Abstract: A method is provided in one example embodiment and may include calculating, by one or more of a plurality of small cell radios, one or more sets of candidate power control parameters using a first interference constraint for uplink user equipment (UE) transmissions for UE served by the one or more of the plurality of small cell radios; determining, at a central management entity, whether an average of a sum of an expected interference for UE associated with the plurality of small cell radios violates a second interference constraint for any of the one or more sets of candidate power control parameters; and generating one or more messages for each of the plurality of small cell radios identifying one or more particular sets of power control parameters that provide for meeting the second interference constraint.
    Type: Application
    Filed: July 25, 2015
    Publication date: January 26, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
  • Publication number: 20170026915
    Abstract: A method is provided in one example embodiment and may include calculating, by one or more of a plurality of small cell radios, one or more sets of candidate power control parameters using a first interference constraint for uplink user equipment (UE) transmissions for UE served by the one or more of the plurality of small cell radios; determining, at a central management entity, whether an average of a sum of an expected interference for UE associated with the plurality of small cell radios violates a second interference constraint for any of the one or more sets of candidate power control parameters; and generating one or more messages for each of the plurality of small cell radios identifying one or more particular sets of power control parameters that provide for meeting the second interference constraint.
    Type: Application
    Filed: August 24, 2015
    Publication date: January 26, 2017
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
  • Patent number: 9497700
    Abstract: A method of dynamically adjusting Wi-Fi parameters of a plurality of access points (APs) is disclosed. Reports from the plurality of APs are received through an interface. A conflict graph is created by a processor. Creating the conflict graph includes creating a plurality of vertices of the conflict graph, each vertex corresponding to one of the plurality of APs. Creating the conflict graph further includes determining that there is a conflict between at least some of the pairs of APs based at least in part on the received reports. Creating the conflict graph includes connecting an edge between each of the at least some of the pairs of APs. The conflict graph is stored in a memory.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: November 15, 2016
    Assignee: wildfire.exchange, inc.
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna
  • Publication number: 20160309356
    Abstract: A method is provided in one example embodiment and may include determining one or more uplink inter cell interference coordination (ICIC) parameters for a plurality of cells based, at least in part, on feedback information associated with the plurality of cells; exchanging interference information between neighboring cells; and scheduling uplink transmissions for user equipment served by the neighboring cells based, at least in part, on the uplink ICIC parameters and the interference information exchanged between neighboring cells. A method is provided in another example embodiment and may include determining a ratio relating a first portion of a frequency spectrum for assigning fractional frequency re-use resources to a second portion of the frequency spectrum for assigning re-use one resources; and updating the ratio relating the first portion and the second portion of the frequency spectrum to optimize throughput rates for the plurality of user equipment across the plurality of cells.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 20, 2016
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali
  • Publication number: 20160309476
    Abstract: A method is provided in one example embodiment and may include determining one or more uplink inter cell interference coordination (ICIC) parameters for a plurality of cells based, at least in part, on feedback information associated with the plurality of cells; exchanging interference information between neighboring cells; and scheduling uplink transmissions for user equipment served by the neighboring cells based, at least in part, on the uplink ICIC parameters and the interference information exchanged between neighboring cells. A method is provided in another example embodiment and may include determining a ratio relating a first portion of a frequency spectrum for assigning fractional frequency re-use resources to a second portion of the frequency spectrum for assigning re-use one resources; and updating the ratio relating the first portion and the second portion of the frequency spectrum to optimize throughput rates for the plurality of user equipment across the plurality of cells.
    Type: Application
    Filed: April 20, 2015
    Publication date: October 20, 2016
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali
  • Patent number: 9420528
    Abstract: A method of managing Wi-Fi access points (APs) includes selecting between a global optimization and a local optimization of AP parameters based at least in part on one or more factors. The method includes causing a global optimization to be performed in the event that a global optimization is selected, the global optimization comprising: searching for adjustments to a first set of AP parameters that optimize an overall performance associated with a global region, the global region including a first set of APs. The method includes causing a local optimization to be performed in the event that a local optimization is selected, the local optimization comprising: searching for adjustments to a second set of AP parameters that optimize an overall performance associated with a localized region, the localized region including a second set of APs, wherein the second set of APs comprises a subset of the first set of APs.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 16, 2016
    Assignee: wildfire.exchange, inc.
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna
  • Publication number: 20160080949
    Abstract: A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Inventors: Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna, Ritesh K. Madan
  • Patent number: 9226180
    Abstract: A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: December 29, 2015
    Assignee: wildfire,exchange, inc.
    Inventors: Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna, Ritesh K. Madan
  • Publication number: 20150341797
    Abstract: A method of dynamically adjusting Wi-Fi parameters of a plurality of access points (APs) is disclosed. Reports from the plurality of APs are received through an interface. A conflict graph is created by a processor. Creating the conflict graph includes creating a plurality of vertices of the conflict graph, each vertex corresponding to one of the plurality of APs. Creating the conflict graph further includes determining that there is a conflict between at least some of the pairs of APs based at least in part on the received reports. Creating the conflict graph includes connecting an edge between each of the at least some of the pairs of APs. The conflict graph is stored in a memory.
    Type: Application
    Filed: July 31, 2015
    Publication date: November 26, 2015
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna
  • Publication number: 20150327164
    Abstract: A method of managing Wi-Fi access points (APs) includes selecting between a global optimization and a local optimization of AP parameters based at least in part on one or more factors. The method includes causing a global optimization to be performed in the event that a global optimization is selected, the global optimization comprising: searching for adjustments to a first set of AP parameters that optimize an overall performance associated with a global region, the global region including a first set of APs. The method includes causing a local optimization to be performed in the event that a local optimization is selected, the local optimization comprising: searching for adjustments to a second set of AP parameters that optimize an overall performance associated with a localized region, the localized region including a second set of APs, wherein the second set of APs comprises a subset of the first set of APs.
    Type: Application
    Filed: May 14, 2015
    Publication date: November 12, 2015
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna
  • Patent number: 9179382
    Abstract: A method, an apparatus, and a computer program product for supporting RLC layer handover between WAN supported D2D communications and direct D2D communications. In one example, a first UE may be operable to transmit a WAN handover request including a peer identifier and a cell identifier associated with a second UE to an eNB, where the first UE and the second UE are engaged in direct D2D communications. The eNB may be equipped to communicate the WAN handover request to a second eNB associated with the second UE and receive a RLC parameter indicating a last successful reception by the second UE. The eNB may transmit the RLC parameter to the first UE. The first UE may be equipped to determine a subsequent content item based on the received RLC parameter and may transmit the subsequent content item to the second UE via the eNB.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: November 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ritesh K. Madan, Junyi Li
  • Publication number: 20150312778
    Abstract: A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted.
    Type: Application
    Filed: May 5, 2015
    Publication date: October 29, 2015
    Inventors: Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna, Ritesh K. Madan
  • Patent number: 9131392
    Abstract: A method of detecting a hidden node is disclosed. Reports from a plurality of access points (APs) are received. The method includes determining that transmissions from a second AP are not detected by a first AP based on the received report from the first AP. The method includes determining that transmissions from a client associated with the first AP are detected by the second AP based on the received report from the second AP. The method further includes detecting that the second AP is a hidden node, wherein transmissions from the hidden node interfere with transmissions between the client and the first AP, and wherein the detection is based at least in part on the determination that transmissions from the second AP are not detected by the first AP and the determination that transmissions from the client associated with the first AP are detected by the second AP.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 8, 2015
    Assignee: wildfire.exchange, inc.
    Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Andrea Goldsmith, Santhosh Krishna