Patents by Inventor Kedar Durgadas Shirali
Kedar Durgadas Shirali 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).
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Patent number: 10165589Abstract: 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: GrantFiled: November 10, 2017Date of Patent: December 25, 2018Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
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Patent number: 10159048Abstract: 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: GrantFiled: June 17, 2017Date of Patent: December 18, 2018Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
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Patent number: 10154415Abstract: 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: GrantFiled: August 4, 2015Date of Patent: December 11, 2018Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali
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Publication number: 20180103486Abstract: 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: ApplicationFiled: November 10, 2017Publication date: April 12, 2018Inventors: Ritesh K. MADAN, Vikram CHANDRASEKHAR, Rohit Umesh NABAR, Kedar Durgadas SHIRALI, Qing ZHAO
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System and method for providing uplink inter cell interference coordination in a network environment
Patent number: 9918314Abstract: 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: GrantFiled: April 14, 2015Date of Patent: March 13, 2018Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali -
Patent number: 9860852Abstract: 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: GrantFiled: August 24, 2015Date of Patent: January 2, 2018Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
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Patent number: 9854536Abstract: 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: GrantFiled: August 3, 2015Date of Patent: December 26, 2017Assignee: Cisco Technology, Inc.Inventors: Vikram Chandrasekhar, Ritesh K. Madan, Rohit Umesh Nabar, Kedar Durgadas Shirali
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System and method for providing uplink inter cell interference coordination in a network environment
Patent number: 9839035Abstract: 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: GrantFiled: April 20, 2015Date of Patent: December 5, 2017Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali -
Patent number: 9826545Abstract: 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: GrantFiled: November 25, 2015Date of Patent: November 21, 2017Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
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Publication number: 20170332385Abstract: This disclosure provides systems, methods and apparatuses for allocating bandwidth resources to wireless network devices. In some implementations, an access point (AP) may allocate uplink resource units (RUs) to a given device (STA) based on the amount of UL data the STA has queued for transmission to the AP and a priority level of the UL data. Each STA associated with the AP may transmit a buffer status report (BSR) indicating an amount of queued UL data buffered in the respective STA and one or more access categories or traffic identifiers (TIDs) to which the queued data belongs. The AP may generate an RU allocation scheme based on the BSRs received from each of its associated STAs. The RU allocation scheme may indicate the size and number of RUs to be allocated to each STA for UL transmissions. The AP may receive UL data from a STA via the RUs allocated to that STA.Type: ApplicationFiled: May 4, 2017Publication date: November 16, 2017Inventors: Kedar Durgadas Shirali, Raja Banerjea, Alfred Asterjadhi, Naveen Kumar Kakani
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Patent number: 9820296Abstract: 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: GrantFiled: October 20, 2015Date of Patent: November 14, 2017Assignee: Cisco Technology, Inc.Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
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Publication number: 20170289923Abstract: 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: ApplicationFiled: June 17, 2017Publication date: October 5, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
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Patent number: 9686798Abstract: A method is provided in one example embodiment and may include ranking a plurality of downlink control information (DCI) messages according to a first rank criterion; ranking a plurality of allowable resource sets for each ranked DCI message according to a second rank criterion; and allocating resources for each ranked DCI message based, at least in part, on whether particular resources, which are to be allocated for a particular ranked DCI message, are collided, at least in part, with previously allocated resources for one or more other DCI messages.Type: GrantFiled: January 14, 2015Date of Patent: June 20, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Qing Zhao, Kedar Durgadas Shirali, Rohit Umesh Nabar
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Patent number: 9648569Abstract: 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: GrantFiled: July 25, 2015Date of Patent: May 9, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao
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Patent number: 9641294Abstract: An apparatus includes an interference rejection combining module, at least partially implemented in hardware. The interference rejection combining module determines a covariance based on a Hermitian transpose of a signal received on a subcarrier of a symbol that is not a pilot symbol.Type: GrantFiled: July 25, 2014Date of Patent: May 2, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Rohit Umesh Nabar, Kedar Durgadas Shirali
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Publication number: 20170111919Abstract: 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: ApplicationFiled: November 25, 2015Publication date: April 20, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
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Publication number: 20170111926Abstract: 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: ApplicationFiled: October 20, 2015Publication date: April 20, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Vikram Chandrasekhar, Rohit Umesh Nabar, Kedar Durgadas Shirali, Qing Zhao
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Publication number: 20170041885Abstract: 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: ApplicationFiled: August 3, 2015Publication date: February 9, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Vikram Chandrasekhar, Ritesh K. Madan, Rohit Umesh Nabar, Kedar Durgadas Shirali
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Publication number: 20170041939Abstract: 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: ApplicationFiled: August 4, 2015Publication date: February 9, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali
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Publication number: 20170026915Abstract: 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: ApplicationFiled: August 24, 2015Publication date: January 26, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh K. Madan, Rohit Umesh Nabar, Vikram Chandrasekhar, Kedar Durgadas Shirali, Qing Zhao