Patents by Inventor Ritesh Kumar Madan
Ritesh Kumar 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).
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Patent number: 10680743Abstract: The present disclosure provides a fine-grained link adaptation mechanism that allows for link adaptation at a resource block granularity. To this end, the fine-grained link adaptation mechanism can determine the effective signal-to-interference-plus-noise ratio for individual user equipment in a particular cell at the resource block granularity. This way, the transmitter can use the effective signal-to-interference-plus-noise ratio to adapt the modulation and coding scheme at the resource block granularity. The fine-grained link adaptation mechanism can be introduced to a long term evolution (LTE) network without substantial redesign of the LTE network.Type: GrantFiled: February 9, 2017Date of Patent: June 9, 2020Assignee: Cisco Technology, Inc.Inventors: Ritesh Kumar Madan, Rohit Umesh Nabar, Vikram Chandrasekhar
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Patent number: 9844073Abstract: Methods and apparatus for contention-based access in a wireless communication system are disclosed. A base station may determine a contention-based resource allocation comprising a subset of available system resources. Information related to the contention-based resources may be sent to a user device. In addition, state information may be provided to the UE. The UE may generate and send a contention-based uplink transmission consistent with the allocated resources and state information.Type: GrantFiled: January 10, 2011Date of Patent: December 12, 2017Assignee: QUALCOMM IncorporatedInventors: Siddharth Ray, Ashwin Sampath, Ritesh Kumar Madan
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Publication number: 20170155471Abstract: The present disclosure provides a fine-grained link adaptation mechanism that allows for link adaptation at a resource block granularity. To this end, the fine-grained link adaptation mechanism can determine the effective signal-to-interference-plus-noise ratio for individual user equipment in a particular cell at the resource block granularity. This way, the transmitter can use the effective signal-to-interference-plus-noise ratio to adapt the modulation and coding scheme at the resource block granularity. The fine-grained link adaptation mechanism can be introduced to a long term evolution (LTE) network without substantial redesign of the LTE network.Type: ApplicationFiled: February 9, 2017Publication date: June 1, 2017Applicant: CISCO TECHNOLOGY, INC.Inventors: Ritesh Kumar Madan, Rohit Umesh Nabar, Vikram Chandrasekhar
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Patent number: 9571228Abstract: The present disclosure provides a fine-grained link adaptation mechanism that allows for link adaptation at a resource block granularity. To this end, the fine-grained link adaptation mechanism can determine the effective signal-to-interference-plus-noise ratio for individual user equipment in a particular cell at the resource block granularity. This way, the transmitter can use the effective signal-to-interference-plus-noise ratio to adapt the modulation and coding scheme at the resource block granularity. The fine-grained link adaptation mechanism can be introduced to a long term evolution (LTE) network without substantial redesign of the LTE network.Type: GrantFiled: December 2, 2014Date of Patent: February 14, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Ritesh Kumar Madan, Rohit Umesh Nabar, Vikram Chandrasekhar
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Publication number: 20160156430Abstract: The present disclosure provides a fine-grained link adaptation mechanism that allows for link adaptation at a resource block granularity. To this end, the fine-grained link adaptation mechanism can determine the effective signal-to-interference-plus-noise ratio for individual user equipment in a particular cell at the resource block granularity. This way, the transmitter can use the effective signal-to-interference-plus-noise ratio to adapt the modulation and coding scheme at the resource block granularity. The fine-grained link adaptation mechanism can be introduced to a long term evolution (LTE) network without substantial redesign of the LTE network.Type: ApplicationFiled: December 2, 2014Publication date: June 2, 2016Inventors: Ritesh Kumar MADAN, Rohit Umesh NABAR, Vikram CHANDRASEKHAR
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Patent number: 9055558Abstract: The herein disclosed apparatus, systems, and methods use Almost Blank Subframes (ABS) to manage interference between D2D and WAN transmissions. In particular, an eNodeB is disclosed comprising a controller module operable to obtain an indicator of a need for a quiescent subframe, and to select responsively thereto a subframe of a communication frame, and allocate the selected subframe as an Almost Blank Subframe (ABS). The base station includes a transceiver module operable to communicate the ABS over an air interface, and to send a misinformation signal to another eNodeB device indicating the ABS is not almost blank.Type: GrantFiled: May 22, 2014Date of Patent: June 9, 2015Assignee: QUALCOMM IncorporatedInventors: Ritesh Kumar Madan, Shailesh Patil
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Publication number: 20140254439Abstract: The herein disclosed apparatus, systems, and methods use Almost Blank Subframes (ABS) to manage interference between D2D and WAN transmissions. In particular, an eNodeB is disclosed comprising a controller module operable to obtain an indicator of a need for a quiescent subframe, and to select responsively thereto a subframe of a communication frame, and allocate the selected subframe as an Almost Blank Subframe (ABS). The base station includes a transceiver module operable to communicate the ABS over an air interface, and to send a misinformation signal to another eNodeB device indicating the ABS is not almost blank.Type: ApplicationFiled: May 22, 2014Publication date: September 11, 2014Applicant: QUALCOMM IncorporatedInventors: Ritesh Kumar Madan, Shailesh Patil
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Patent number: 8712462Abstract: An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).Type: GrantFiled: June 19, 2010Date of Patent: April 29, 2014Assignee: QUALCOMM IncorporatedInventors: Ritesh Kumar Madan, Siddharth Ray, Niranjan N. Ratnakar, Arnab Das
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Publication number: 20120014269Abstract: Methods and apparatus for contention-based access in a wireless communication system are disclosed. A base station may determine a contention-based resource allocation comprising a subset of available system resources. Information related to the contention-based resources may be sent to a user device. In addition, state information may be provided to the UE. The UE may generate and send a contention-based uplink transmission consistent with the allocated resources and state information.Type: ApplicationFiled: January 10, 2011Publication date: January 19, 2012Applicant: QUALCOMM IncorporatedInventors: Siddharth Ray, Ashwin Sampath, Ritesh Kumar Madan
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Publication number: 20110312360Abstract: An apparatus and method are disclosed for determining the optimal bandwidth fractions for all the users in each frequency band in a wireless communication system to maximize the net sum of user utilities. User utilities are functions of average rates of users, where different averaging rules can be used for different users. The standard approach of computing an optimal scheduler strategy involves the solution of a convex optimization problem that has a complexity on the order of O(N3) for N flows. This approach is not feasible for online implementation having a large number of flows. The method of the present work employs an efficient computational algorithm that obtains the optimal bandwidth fractions in O(N) time. This feature makes the method suitable for implementation in wideband cellular systems like LTE (Long Term Evolution) and UMB (Ultra Mobile Broadband).Type: ApplicationFiled: June 19, 2010Publication date: December 22, 2011Applicant: QUALCOMM INCORPORATEDInventors: Ritesh Kumar Madan, Siddharth Ray, Niranjan N. Ratnakar, Arnab Das
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Publication number: 20110182251Abstract: Systems and methodologies are described that facilitate adapting wireless device scheduling parameters at least in part by adjusting prioritized bit rates (PBR) of one or more logical channels. The PBRs can be adjusted according to feedback from a media access control layer scheduler or a radio link control layer regarding resource allocations to one or more wireless device, served rate for one or more wireless device, and/or the like. Adjusting the PBRs based on the feedback can increase likelihood that data can be transmitted over substantially all or a specified set of logical channels. Moreover, PBRs can be modified for specific wireless devices based further on resource allocations thereto. Furthermore, PBRs can be modified based at least in part on radio conditions of neighboring access points.Type: ApplicationFiled: July 27, 2010Publication date: July 28, 2011Applicant: QUALCOMM IncorporatedInventors: Ritesh Kumar Madan, Ashwin Sampath