Patents by Inventor Tiangao Gou
Tiangao Gou 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: 12028821Abstract: A method for providing IQ mismatch (IQMM) compensation includes: estimating an overall frequency response of a compensation filter by stepping through a frequency range starting at an initial frequency and performing (1) through (3) at each step, a selected frequency at each step being a multiple of a subcarrier frequency of the initial frequency: (1) sending a single tone signal at the selected frequency, (2) determining a first response of a mismatched signal at the selected frequency and a second response of the mismatched signal at an image frequency of the selected frequency, and (3) estimating a frequency response of the compensation filter at the selected frequency based on the first response and the second response; generating time-domain filter taps based on the estimated overall frequency response of the compensation filter; determining a time delay based on the time-domain filter taps; and generating a compensated signal based on the time delay.Type: GrantFiled: September 17, 2021Date of Patent: July 2, 2024Assignee: Samsung Electronics Co., LtdInventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Publication number: 20220007318Abstract: A method for providing IQ mismatch (IQMM) compensation includes: estimating an overall frequency response of a compensation filter by stepping through a frequency range starting at an initial frequency and performing (1) through (3) at each step, a selected frequency at each step being a multiple of a subcarrier frequency of the initial frequency: (1) sending a single tone signal at the selected frequency, (2) determining a first response of a mismatched signal at the selected frequency and a second response of the mismatched signal at an image frequency of the selected frequency, and (3) estimating a frequency response of the compensation filter at the selected frequency based on the first response and the second response; generating time-domain filter taps based on the estimated overall frequency response of the compensation filter; determining a time delay based on the time-domain filter taps; and generating a compensated signal based on the time delay.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Patent number: 11129122Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE foType: GrantFiled: August 23, 2019Date of Patent: September 21, 2021Inventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Publication number: 20190380101Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE foType: ApplicationFiled: August 23, 2019Publication date: December 12, 2019Inventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Patent number: 10412698Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE foType: GrantFiled: May 18, 2017Date of Patent: September 10, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Publication number: 20180242269Abstract: A method for providing IQ mismatch (IQMM) compensation includes: sending a single tone signal at an original frequency; determining a first response of an impaired signal at the original frequency and a second response of the impaired signal at a corresponding image frequency; determining an estimate of a frequency response of the compensation filter at the original frequency based on the first response and the second response; repeating the steps of sending the single tone signal, determining the first response and the second response, and determining the estimate of the frequency response of the compensation filter by sweeping the single tone signal at a plurality of steps to determine a snapshot of the frequency response of the compensation filter; converting the frequency response of the compensation filter to a plurality of time-domain filter taps of the compensation filter by performing a pseudo-inverse of a time-to-frequency conversion matrix; and determining a time delay that provides a minimal LSE foType: ApplicationFiled: May 18, 2017Publication date: August 23, 2018Inventors: Tiangao Gou, Pranav Dayal, Niranjan Ratnakar, Gennady Feygin, Jungwon Lee
-
Patent number: 9532280Abstract: An electronic system includes: a communication channel configured to connect a first device to a second device; a search channel configured to search for a third device in parallel to the communication channel connected to the first device and the second device; and a communication unit configured to handover the communication channel to connect the first device and the third device without the second device.Type: GrantFiled: October 21, 2014Date of Patent: December 27, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Claudio Rafael Cunha Monteiro da Silva, Tiangao Gou, Jungwon Lee, Inyup Kang
-
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
-
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
-
Wireless communication system with interference mitigation mechanism and method of operation thereof
Patent number: 9124397Abstract: A wireless communication system includes: a communication interface configured to receive a desired input signal and an interference input signal; and a control module, coupled to the communication interface, configured to calculate a capacity region to maximize a first R1 reference for the desired input signal by removing the interference input signal.Type: GrantFiled: May 3, 2013Date of Patent: September 1, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Jungwon Lee, Jung Hyun Bae, Yingqun Yu, Tiangao Gou, Inyup Kang -
Publication number: 20150126194Abstract: An electronic system includes: a communication channel configured to connect a first device to a second device; a search channel configured to search for a third device in parallel to the communication channel connected to the first device and the second device; and a communication unit configured to handover the communication channel to connect the first device and the third device without the second device.Type: ApplicationFiled: October 21, 2014Publication date: May 7, 2015Inventors: Claudio Rafael Cunha Monteiro da Silva, Tiangao Gou, Jungwon Lee, Inyup Kang
-
WIRELESS COMMUNICATION SYSTEM WITH INTERFERENCE MITIGATION MECHANISM AND METHOD OF OPERATION THEREOF
Publication number: 20140274092Abstract: A wireless communication system includes: a communication interface configured to receive a desired input signal and an interference input signal; and a control module, coupled to the communication interface, configured to calculate a capacity region to maximize a first R1 reference for the desired input signal by removing the interference input signal.Type: ApplicationFiled: May 3, 2013Publication date: September 18, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jungwon Lee, Jung Hyun Bae, Yingqun Yu, Tiangao Gou, Inyup Kang -
Patent number: 8472550Abstract: This invention provides a method for exploiting precoder optimization gains and multi-user diversity gains with interference alignment in general MIMO wireless networks including multiple users. Specifically, two embodiments exploit either a gradient-based search or iteratively orthogonalizing inference. The method can achieve near-optimal performance at a low complexity. Furthermore, a scheduling criterion is provided for wireless networks comprised of a large number of mobile stations in each cell. The criterion can be done independently in each cell to significantly reduce information exchanged between base stations in different cells compared to the methods that perform joint scheduling over all cells. The two embodiments can be utilized in a spectrally efficient communications network equipped with relaying nodes.Type: GrantFiled: December 23, 2010Date of Patent: June 25, 2013Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Toshiaki Koike-Akino, Tiangao Gou, Man-On Pun
-
Publication number: 20120163433Abstract: This invention provides a method for exploiting precoder optimization gains and multi-user diversity gains with interference alignment in general MIMO wireless networks including multiple users. Specifically, two embodiments exploit either a gradient-based search or iteratively orthogonalizing inference. The method can achieve near-optimal performance at a low complexity. Furthermore, a scheduling criterion is provided for wireless networks comprised of a large number of mobile stations in each cell. The criterion can be done independently in each cell to significantly reduce information exchanged between base stations in different cells compared to the methods that perform joint scheduling over all cells. The two embodiments can be utilized in a spectrally efficient communications network equipped with relaying nodes.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Inventors: Toshiaki Koike-Akino, Tiangao Gou, Man-On Pun