Patents by Inventor Niranjan N. Ratnakar
Niranjan N. Ratnakar 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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Physical Downlink Control Channel Transmission and Reception Techniques for Dynamic Spectrum Sharing
Publication number: 20220311576Abstract: A user equipment (UE) is configured to perform rate matching for reference signals under certain conditions. The UE receives information associated with a downlink reference signal for a first radio access technology (RAT), wherein the first RAT is different than a currently camped second RAT, identifies reference signal occasions for the downlink reference signal and receives downlink control information from the second RAT via a physical downlink control channel (PDCCH).Type: ApplicationFiled: October 13, 2020Publication date: September 29, 2022Inventors: Haitong SUN, Chunxuan YE, Dawei ZHANG, Hong HE, Hossam K. SHOKR, Huaning NIU, Niranjan N. RATNAKAR, Oghenekome OTERI, Sami M. ALMALFOUH, Wei ZENG, Wei ZHANG, Weidong YANG, Yushu ZHANG -
Patent number: 9787508Abstract: A computing system includes: an inter-device interface configured to receive communication signal for communicating between a device and a further device; a communication circuit, coupled to the inter-device interface, configured to: calculate an initial offset estimate based on the communication signal, dynamically generate a dynamic candidate set based on the initial offset estimate, and determine a level offset for the communication signal for communicating between the device and the further device.Type: GrantFiled: January 26, 2016Date of Patent: October 10, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Niranjan N Ratnakar, Pranav Dayal, Haechul Lee
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Publication number: 20170163454Abstract: A computing system includes: an inter-device interface configured to receive communication signal for communicating between a device and a further device; a communication circuit, coupled to the inter-device interface, configured to: calculate an initial offset estimate based on the communication signal, dynamically generate a dynamic candidate set based on the initial offset estimate, and determine a level offset for the communication signal for communicating between the device and the further device.Type: ApplicationFiled: January 26, 2016Publication date: June 8, 2017Inventors: Niranjan N Ratnakar, Pranav Dayal, Haechul Lee
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Patent number: 9363072Abstract: A computing system includes: a communication unit configured to: identify a first synchronization symbol and a second synchronization symbol corresponding to a synchronization signal, generate the synchronization signal including the first synchronization symbol and the second synchronization symbol using a synchronization generator mechanism and a prefix generator mechanism; and an inter-device interface coupled to the communication unit, configured to communicate the synchronization signal for synchronizing a first device and a second device for communicating a serving content.Type: GrantFiled: November 10, 2014Date of Patent: June 7, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Niranjan N. Ratnakar, Tiangao Gou, Pranav Dayal, Jungwon Lee, Hyunseok Ryu
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Publication number: 20150341164Abstract: A computing system includes: a communication unit configured to: identify a first synchronization symbol and a second synchronization symbol corresponding to a synchronization signal, generate the synchronization signal including the first synchronization symbol and the second synchronization symbol using a synchronization generator mechanism and a prefix generator mechanism; and an inter-device interface coupled to the communication unit, configured to communicate the synchronization signal for synchronizing a first device and a second device for communicating a serving content.Type: ApplicationFiled: November 10, 2014Publication date: November 26, 2015Inventors: Niranjan N. Ratnakar, Tiangao Gou, Pranav Dayal, Jungwon Lee, Hyunseok Ryu
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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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Patent number: 8520723Abstract: The apparatus and methods described herein are used to provide data between an application and a modem. One method includes providing data in application data units from the application to the modem, transmitting the data from the modem to a receiver, and reporting by the modem to the application, whether each application data unit has been successfully transmitted from the modem to the receiver.Type: GrantFiled: December 9, 2010Date of Patent: August 27, 2013Assignee: QUALCOMM IncorporatedInventors: Sundeep Rangan, Prashanth Hande, Niranjan N. Ratnakar, Ozge Koymen, Ritesh K. Madan, Atul Maharshi, Subhadeep P. Roy, Siddharth Ray
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Patent number: 8520699Abstract: The apparatus and methods described herein are used to provide a communication quality feedback of an end-to-end communication path between an application transmitter and an application receiver. One method includes transmitting data from the application transmitter to the application receiver via the end-to-end communication path, the end-to-end communication path having at least one wireless link with a wireless transmitter and a wireless receiver, generating, at the wireless transmitter, a first communication quality feedback message, and transmitting the first communication quality feedback message from the wireless transmitter to the application transmitter in a standardized format.Type: GrantFiled: December 9, 2010Date of Patent: August 27, 2013Assignee: QUALCOMM IncorporatedInventors: Niranjan N. Ratnakar, Prashanth Hande, Sundeep Rangan, Atul Maharshi, Subhadeep P. Roy, Ritesh K. Madan, Ozge Koymen, Siddharth Ray
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Publication number: 20120147936Abstract: The apparatus and methods described herein are used to provide data between an application and a modem. One method includes providing data in application data units from the application to the modem, transmitting the data from the modem to a receiver, and reporting by the modem to the application, whether each application data unit has been successfully transmitted from the modem to the receiver.Type: ApplicationFiled: December 9, 2010Publication date: June 14, 2012Applicant: QUALCOMM IncorporatedInventors: Sundeep Rangan, Prashanth Hande, Niranjan N. Ratnakar, Ozge Koymen, Ritesh K. Madan, Atul Maharshi, Subhadeep P. Roy, Siddharth Ray
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Publication number: 20120147759Abstract: The apparatus and methods described herein are used to provide a communication quality feedback of an end-to-end communication path between an application transmitter and an application receiver. One method includes transmitting data from the application transmitter to the application receiver via the end-to-end communication path, the end-to-end communication path having at least one wireless link with a wireless transmitter and a wireless receiver, generating, at the wireless transmitter, a first communication quality feedback message, and transmitting the first communication quality feedback message from the wireless transmitter to the application transmitter in a standardized format.Type: ApplicationFiled: December 9, 2010Publication date: June 14, 2012Applicant: QUALCOMM IncorporatedInventors: Niranjan N. Ratnakar, Prashanth Hande, Sundeep Rangan, Atul Maharshi, Subhadeep P. Roy, Ritesh K. Madan, Ozge Koymen, Siddharth Ray
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Patent number: 8149936Abstract: Disclosed are methods and apparatus for synchronizing tile processing and assignment processing in a communication device. In particular, the methods and apparatus utilize a tile processing scorecard with a number of assertable bits corresponding to a number of tiles to be tile processed. As each tile is tile processed, the scorecard or bit indicators are asserted to indicate that the tile has been processed. Assignment jobs, which involve codewords having information from symbols in multiple tiles are processed after all of the pertinent tiles are tile processed. The scorecard information is accessible for assignment processing to determine which tiles have been processed, thus affording synchronization of tile processing with assignment processing, while maximizing the independence of these two processing operations. Tile processing operations may further use the scorecard information to prioritize or order tile processing in relation to known queued assignment jobs.Type: GrantFiled: March 27, 2009Date of Patent: April 3, 2012Assignee: QUALCOMM IncorporatedInventors: Joshua Lawrence Koslov, Irv Negrin, Jingyuan Liu, Niranjan N. Ratnakar
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Patent number: 8150345Abstract: A signal received via a plurality of antennas, and containing an interference component and a desired communication component, is processed to suppress the interference component. The interference component is suppressed based on an inverse of a spatial covariance matrix, which inverse is produced without performing a matrix inversion operation.Type: GrantFiled: March 28, 2009Date of Patent: April 3, 2012Assignee: QUALCOMM IncorporatedInventors: Subhadeep P. Roy, Niranjan N. Ratnakar, Sundeep Rangan
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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: 20110103395Abstract: A communications method is provided. The method includes processing multiple packet queues for a high speed packet data network and associating one or more arrays for the multiple packet queues. The method also includes generating an index for the arrays, where the index is associated with a time stamp in order to determine a burst size for the high speed packet data network.Type: ApplicationFiled: November 3, 2009Publication date: May 5, 2011Applicant: QUALCOMM INCORPORATEDInventors: Niranjan N. Ratnakar, Ritesh K. Madan, Sundeep Rangan
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Publication number: 20090245434Abstract: Disclosed are methods and apparatus for synchronizing tile processing and assignment processing in a communication device. In particular, the methods and apparatus utilize a tile processing scorecard with a number of assertable bits corresponding to a number of tiles to be tile processed. As each tile is tile processed, the scorecard or bit indicators are asserted to indicate that the tile has been processed. Assignment jobs, which involve codewords having information from symbols in multiple tiles are processed after all of the pertinent tiles are tile processed. The scorecard information is accessible for assignment processing to determine which tiles have been processed, thus affording synchronization of tile processing with assignment processing, while maximizing the independence of these two processing operations. Tile processing operations may further use the scorecard information to prioritize or order tile processing in relation to known queued assignment jobs.Type: ApplicationFiled: March 27, 2009Publication date: October 1, 2009Applicant: QUALCOMM INCORPORATEDInventors: Joshua Lawrence Koslov, Irv Negrin, Jingyuan Liu, Niranjan N. Ratnakar
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Publication number: 20090247107Abstract: A signal received via a plurality of antennas, and containing an interference component and a desired communication component, is processed to suppress the interference component. The interference component is suppressed based on an inverse of a spatial covariance matrix, which inverse is produced without performing a matrix inversion operation.Type: ApplicationFiled: March 28, 2009Publication date: October 1, 2009Applicant: QUALCOMM INCORPORATEDInventors: Subhadeep P. Roy, Niranjan N. Ratnakar, Sundeep Rangan
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Publication number: 20090245402Abstract: An apparatus and method for tile processing using a plurality of tile descriptors comprising defining the plurality of tile descriptors in a time-frequency plane; preparing the plurality of tile descriptors to be sent to a receiver for storage; allocating at least one tile associated with the plurality of tile descriptors to a user; and notifying the allocated at least one tile to a transmitter for transmitting a wireless signal to the user using the allocated at least one tile. In one aspect, the apparatus and method further comprise receiving the wireless signal, wherein the wireless signal comprises an encoded user message; retrieving the plurality of tile descriptors from a memory unit; and demodulating the wireless signal using the plurality of tile descriptors to obtain the encoded user message.Type: ApplicationFiled: March 27, 2009Publication date: October 1, 2009Applicant: QUALCOMM IncorporatedInventors: Niranjan N. Ratnakar, Jingyuan Liu, Joshua Lawrence Koslov