Patents by Inventor Chandrashekhar THEJASWI
Chandrashekhar THEJASWI 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).
-
Patent number: 11956105Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer readable storage medium for generating soft-decision information for a receiver. In example embodiments, a method is provided. The method includes receiving, at a first device, a signal from a second device, the signal corresponding to a group of symbols transmitted from the second device; determining, by performing Lattice Reduction linear detection on the signal, a first group of estimated symbols for the group of symbols; determining, by performing iterative interference cancellation on the first group of estimated symbols, a second group of estimated symbols for the group of symbols; and generating, based on the second group of estimated symbols, soft-decision information about the group of symbols for use by a decoder at the first device. Embodiments of the present disclosure can improve the receiver performance with reduced complexity.Type: GrantFiled: January 22, 2020Date of Patent: April 9, 2024Assignee: Nokia Solutions and Networks OyInventors: Chandrashekhar Thejaswi, Suresh Kalyanasundaram, Karthik Kuntikana Shrikrishna, Francis Dominique, Lele Shen
-
Publication number: 20230080729Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer readable storage medium for generating soft-decision information for a receiver. In example embodiments, a method is provided. The method includes receiving, at a first device, a signal from a second device, the signal corresponding to a group of symbols transmitted from the second device; determining, by performing Lattice Reduction linear detection on the signal, a first group of estimated symbols for the group of symbols; determining, by performing iterative interference cancellation on the first group of estimated symbols, a second group of estimated symbols for the group of symbols; and generating, based on the second group of estimated symbols, soft-decision information about the group of symbols for use by a decoder at the first device. Embodiments of the present disclosure can improve the receiver performance with reduced complexity.Type: ApplicationFiled: January 22, 2020Publication date: March 16, 2023Inventors: Chandrashekhar THEJASWI, Suresh KALYANASUNDARAM, Karthik KUNTIKANA SHRIKRISHNA, Francis DOMINIQUE, Lele SHEN
-
Patent number: 11546040Abstract: Systems, methods, apparatuses, and computer program products for determining a grid-of-beams (GoB) are provided. One method may include collecting network data for training a neural network, train the neural network, using the collected data, to learn a non-discounted cumulative reward Q that evaluates a benefit of including a given beam into a grid-of-beams (GoB), iteratively applying the trained neural network to select at least one optimal beam to include in the grid-of-beams (GoB), and selecting one or more beams from the grid-of-beams (GoB) to transmit to a user equipment or to receive transmission from the user equipment.Type: GrantFiled: September 13, 2018Date of Patent: January 3, 2023Assignee: Nokia Solutions and Networks OyInventors: Deepak Nayak, Chandrashekhar Thejaswi, Suresh Kalyanasundaram, Rajeev Agrawal, Hua Xu, Anand Bedekar, Veronique Capdevielle, Claudiu Mihailescu, Boris Kouassi, Afef Feki
-
Patent number: 11411600Abstract: An apparatus is disclosed, comprising means for identifying a plurality of user equipment (UE), each transmitting one or more uplink packets for decoding at a base station associated with a given cell of a radio network. The apparatus further comprises means for clustering the identified user equipment into joint processing groups, each joint processing group comprising the identities of two or more user equipment as clustered and means for performing, in a first processing stage, joint processing of the uplink data streams for identified user equipment within common joint processing groups using one or more first processing algorithms to produce corresponding first processed uplink data streams.Type: GrantFiled: October 21, 2019Date of Patent: August 9, 2022Assignee: Nokia Solutions and Networks OyInventors: Chandrashekhar Thejaswi, Suresh Kalyanasundaram, Rajeev Agrawal, Francis Dominique, Karthik Kuntikana Shrikrishna
-
Publication number: 20220006485Abstract: An apparatus is disclosed, comprising means for identifying a plurality of user equipment (UE), each transmitting one or more uplink packets for decoding at a base station associated with a given cell of a radio network. The apparatus further comprises means for clustering the identified user equipment into joint processing groups, each joint processing group comprising the identities of two or more user equipment as clustered and means for performing, in a first processing stage, joint processing of the uplink data streams for identified user equipment within common joint processing groups using one or more first processing algorithms to produce corresponding first processed uplink data streams.Type: ApplicationFiled: October 21, 2019Publication date: January 6, 2022Inventors: Chandrashekhar THEJASWI, Suresh KALYANASUNDARAM, Rajeev AGRAWAL, Francis DOMINIQUE, Karthik KUNTIKANA SHRIKRISHNA
-
Publication number: 20210320709Abstract: Systems, methods, apparatuses, and computer program products for determining a grid-of-beams (GoB) are provided. One method may include collecting network data for training a neural network, train the neural network, using the collected data, to learn a non-discounted cumulative reward Q that evaluates a benefit of including a given beam into a grid-of-beams (GoB), iteratively applying the trained neural network to select at least one optimal beam to include in the grid-of-beams (GoB), and selecting one or more beams from the grid-of-beams (GoB) to transmit to a user equipment or to receive transmission from the user equipment.Type: ApplicationFiled: September 13, 2018Publication date: October 14, 2021Inventors: Deepak NAYAK, Chandrashekhar THEJASWI, Suresh KALYANASUNDARAM, Rajeev AGRAWAL, Hua XU, Anand BEDEKAR, Veronique CAPDEVIELLE, Claudiu MIHAILESCU, Boris KOUASSI, Afef FEKI
-
Patent number: 10735226Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of ?1, 0, and 1.Type: GrantFiled: July 8, 2019Date of Patent: August 4, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Soon Park, Young Jun Hong, Sujit Jos, Young Soo Kim, Chandrashekhar Thejaswi Ps, Kiran Bynam, Manoj Choudhary
-
Patent number: 10491434Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: GrantFiled: December 28, 2018Date of Patent: November 26, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Sujit Jos, Chandrashekhar Thejaswi PS, Kiran Bynam, Young Jun Hong, Chang Soon Park, Manoj Choudhary
-
Publication number: 20190334744Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of ?1, 0, and 1.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Chang Soon PARK, Young Jun HONG, Sujit JOS, Young Soo KIM, Chandrashekhar Thejaswi PS, Kiran BYNAM, Manoj CHOUDHARY
-
Patent number: 10461982Abstract: A method and apparatus estimating carrier frequency offset (CFO) with timing synchronization are provided. The apparatus includes processor that receives analog-to-digital converter (ADC) samples, determines a coarse angle from the received ADC samples, obtains an improved coarse angle by altering the coarse angle based on a preamble duration, determines a base CFO estimate from the improved coarse angle and determines a plurality of candidate CFOs based on the base CFO estimate and a difference frequency.Type: GrantFiled: January 22, 2018Date of Patent: October 29, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit Jos, Kiran Bynam, Chang Soon Park, Jinesh Parameshwaran Nair, Chandrashekhar Thejaswi Pattaguppe Suryanarayan Bhat, Young Jun Hong, Young Soo Kim
-
Patent number: 10404610Abstract: Disclosed is a method and system to transmit independent data by at least two transmitters to corresponding at least two receivers. The method includes obtaining, at a first transmitter, a first ternary sequence from a first base ternary sequence corresponding to a first set of data-symbols, and obtaining, at a second transmitter, a second ternary sequence from a second base ternary sequence corresponding to a second set of data-symbols. The method also includes transmitting, from the first transmitter, the first ternary sequence to a first set of receivers associated with the first transmitter. The method transmits, from the second transmitter, the second ternary sequence to a second set of receivers associated with the second transmitter.Type: GrantFiled: October 13, 2016Date of Patent: September 3, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Sujit Jos, Chandrashekhar Thejaswi Ps, Chang Soon Park, Kiran Bynam, Young Jun Hong
-
Patent number: 10348533Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of ?1, 0, and 1.Type: GrantFiled: May 4, 2018Date of Patent: July 9, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Soon Park, Young Jun Hong, Sujit Jos, Young Soo Kim, Chandrashekhar Thejaswi PS, Kiran Bynam, Manoj Choudhary
-
Publication number: 20190140868Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: ApplicationFiled: December 28, 2018Publication date: May 9, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Kiran BYNAM, Young Jun HONG, Chang Soon PARK, Manoj CHOUDHARY
-
Patent number: 10257325Abstract: Provided is a method and apparatus of a receiver. The method and apparatus include generating a macro sequence of a length using a complementary-symmetry property. The method and apparatus also obtain a preamble sequence for a communication mode based on the macro sequence.Type: GrantFiled: February 5, 2016Date of Patent: April 9, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Chandrashekhar Thejaswi Ps, Kiran Bynam, ChangSoon Park, Young-Jun Hong, Manoj Choudhary
-
Patent number: 10205612Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: GrantFiled: February 5, 2018Date of Patent: February 12, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Sujit Jos, Chandrashekhar Thejaswi Ps, Kiran Bynam, Young Jun Hong, Chang Soon Park, Manoj Choudhary
-
Publication number: 20180331874Abstract: A method and apparatus estimating carrier frequency offset (CFO) with timing synchronization are provided. The apparatus includes processor that receives analog-to-digital converter (ADC) samples, determines a coarse angle from the received ADC samples, obtains an improved coarse angle by altering the coarse angle based on a preamble duration, determines a base CFO estimate from the improved coarse angle and determines a plurality of candidate CFOs based on the base CFO estimate and a difference frequency.Type: ApplicationFiled: January 22, 2018Publication date: November 15, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: SUJIT JOS, KIRAN BYNAM, CHANG SOON PARK, JINESH PARAMESHWARAN NAIR, CHANDRASHEKHAR THEJASWI PATTAGUPPE SURYANARAYAN BHAT, YOUNG JUN HONG, YOUNG SOO KIM
-
Publication number: 20180254929Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Young Jun HONG, Sujit JOS, Young Soo KIM, Chandrashekhar Thejaswi PS, Kiran BYNAM, Manoj CHOUDHARY
-
Publication number: 20180159705Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Applicant: Samsung Electronics Co., Ltd.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Kiran BYNAM, Young Jun HONG, Chang Soon PARK, Manoj CHOUDHARY
-
Patent number: 9967114Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of ?1, 0, and 1.Type: GrantFiled: October 29, 2014Date of Patent: May 8, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon Park, Young Jun Hong, Sujit Jos, Young Soo Kim, Chandrashekhar Thejaswi Ps, Kiran Bynam, Manoj Choudhary
-
Publication number: 20180048583Abstract: Disclosed is a method and system to transmit independent data by at least two transmitters to corresponding at least two receivers. The method includes obtaining, at a first transmitter, a first ternary sequence from a first base ternary sequence corresponding to a first set of data-symbols, and obtaining, at a second transmitter, a second ternary sequence from a second base ternary sequence corresponding to a second set of data-symbols. The method also includes transmitting, from the first transmitter, the first ternary sequence to a first set of receivers associated with the first transmitter. The method transmits, from the second transmitter, the second ternary sequence to a second set of receivers associated with the second transmitter.Type: ApplicationFiled: October 13, 2016Publication date: February 15, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Chang Soon PARK, Kiran BYNAM, Young Jun HONG