Patents by Inventor Dahae Chong
Dahae Chong 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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Publication number: 20240137882Abstract: A device may receive a first synchronization signal including at least one first synchronization signal block (SSB) from a serving base station and a second synchronization signal including at least one second SSB from a neighboring base station, where the second synchronization signal overlaps a slot through which data is transmitted from the serving base station. Additionally, the device may measure a first received power and a received reference signal received power (RSRP) of each of the first synchronization signal and the second synchronization signal received on the slot. The device may calculate an effective RSRP corresponding to at least one additional SSB received from the serving base station, the effective RSRP calculated based on a correlation power, where the correlation power is based on a cross correlation between the received RSRP, the first received power, the data, and the at least one additional SSB.Type: ApplicationFiled: October 5, 2023Publication date: April 25, 2024Inventors: Dahae Chong, Gunyoung Ko, Beomkon Kim, Joohyun Do, Myungjoon Shim, Yujin Sim
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Publication number: 20240048210Abstract: A wireless communication device includes a plurality of antenna modules at different positions, a first radio frequency (RF) integrated circuit, and processing circuitry configured to select one antenna module from among the plurality of antenna modules to obtain a selected antenna module, perform communication using the selected antenna module and the first RF integrated circuit, monitor signal quality through at least one of the plurality of antenna modules to obtain a monitoring result, and control switching from the selected antenna module to another antenna module among the plurality of antenna modules based on the monitoring result, the switching including selectively switching a connection of the first RF integrated circuit from the selected antenna module to the other antenna module.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Dahae CHONG, Beomkon KIM, Joohyun DO
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Publication number: 20240022970Abstract: A baseband circuit that receives, from a RFIC, and being configured to process, a signal including a plurality of synchronization signal blocks generated in a neighbor cell and a signal including radio resource control parameters generated in a serving cell, includes: a storage; a controller configured to write/read data to/from the storage; and a signal processor controlled by the controller, wherein the controller sets a number of measurement target SSBs based on the RRC parameters, wherein the signal processor checks a validity of the set number of SSBs, and the controller stores valid SSB information in the storage based on the checking result, verifies a number of valid SSBs based on the stored valid SSB information, and controls the signal processor or invalidates the neighbor cell so that the signal processor measures reference signal received power of the neighbor cell based on a verification result.Type: ApplicationFiled: August 8, 2023Publication date: January 18, 2024Inventors: Dahae Chong, Joohyun Do
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Patent number: 11824611Abstract: A wireless communication device includes a plurality of antenna modules at different positions, a first radio frequency (RF) integrated circuit, and processing circuitry configured to select one antenna module from among the plurality of antenna modules to obtain a selected antenna module, perform communication using the selected antenna module and the first RF integrated circuit, monitor signal quality through at least one of the plurality of antenna modules to obtain a monitoring result, and control switching from the selected antenna module to another antenna module among the plurality of antenna modules based on the monitoring result, the switching including selectively switching a connection of the first RF integrated circuit from the selected antenna module to the other antenna module.Type: GrantFiled: March 15, 2022Date of Patent: November 21, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dahae Chong, Beomkon Kim, Joohyun Do
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Patent number: 11765628Abstract: A baseband circuit that receives, from a RFIC, and being configured to process, a signal including a plurality of synchronization signal blocks generated in a neighbor cell and a signal including radio resource control parameters generated in a serving cell, includes: a storage; a controller configured to write/read data to/from the storage; and a signal processor controlled by the controller, wherein the controller sets a number of measurement target SSBs based on the RRC parameters, wherein the signal processor checks a validity of the set number of SSBs, and the controller stores valid SSB information in the storage based on the checking result, verifies a number of valid SSBs based on the stored valid SSB information, and controls the signal processor or invalidates the neighbor cell so that the signal processor measures reference signal received power of the neighbor cell based on a verification result.Type: GrantFiled: April 9, 2021Date of Patent: September 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dahae Chong, Joohyun Do
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Publication number: 20230188231Abstract: User equipment for communicating with a first baseband station, the user equipment including: a radio frequency (RF) transceiver; a processing circuit configured to process a signal received through the RF transceiver or a signal to be transmitted through the RF transceiver; and a controller configured to determine a first reception timing of a first interference signal, and measure a second interference signal that is received after the first interference signal based on the first reception timing, wherein the first interference signal and the second interference signal are received from adjacent user equipment communicating with a second baseband station.Type: ApplicationFiled: November 4, 2022Publication date: June 15, 2023Inventors: Dahae CHONG, Gunyoung Pathiyakkara Thombra Ko, Haechul Lee, Keol Cho
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Patent number: 11632721Abstract: The present disclosure relates to an apparatus for wireless communication. The wireless communication apparatus comprises a baseband processor and a controller. The baseband processor is configured to generate state information about a channel of the wireless communication by processing a baseband signal. The controller is configured to activate a low power operation in a first channel state, where a channel quality is reduced compared to than a second channel state, based on the state information.Type: GrantFiled: September 30, 2020Date of Patent: April 18, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dahae Chong, Joohyun Do, Shinwoo Kang, Beomkon Kim
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Patent number: 11627543Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.Type: GrantFiled: September 3, 2021Date of Patent: April 11, 2023Assignee: SAMSUNG ELECTRONICS CO, LTD.Inventors: Dahae Chong, Haechul Lee, Joohyun Do, Myungjoon Shim, Sungyoon Cho
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Publication number: 20220302982Abstract: A wireless communication device includes a plurality of antenna modules at different positions, a first radio frequency (RF) integrated circuit, and processing circuitry configured to select one antenna module from among the plurality of antenna modules to obtain a selected antenna module, perform communication using the selected antenna module and the first RF integrated circuit, monitor signal quality through at least one of the plurality of antenna modules to obtain a monitoring result, and control switching from the selected antenna module to another antenna module among the plurality of antenna modules based on the monitoring result, the switching including selectively switching a connection of the first RF integrated circuit from the selected antenna module to the other antenna module.Type: ApplicationFiled: March 15, 2022Publication date: September 22, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Dahae CHONG, Beomkon KIM, Joohyun DO
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Patent number: 11363550Abstract: A wireless communication device including processing circuitry configured to generate first synchronization signal measurement values by combining sets of correlation values, the sets of correlation values being based on a reception signal, and each of the sets of correlation values having a number of correlation values equal to a first accumulation count, determine whether a valid synchronization signal measurement value is detected among the first synchronization signal measurement values based on a criterion, determine a frequency corresponding to the first valid synchronization signal measurement value as a synchronization frequency in response to determining the valid synchronization signal measurement value is detected, determine a second accumulation count in response to determining the valid synchronization signal measurement value is not detected, generate second synchronization signal measurement values based on the second accumulation count, and perform an initial access operation for synchronizatiType: GrantFiled: September 19, 2019Date of Patent: June 14, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Haechul Lee, Dahae Chong, Sungyoon Cho
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Publication number: 20220014978Abstract: A baseband circuit that receives, from a RFIC, and being configured to process, a signal including a plurality of synchronization signal blocks generated in a neighbor cell and a signal including radio resource control parameters generated in a serving cell, includes: a storage; a controller configured to write/read data to/from the storage; and a signal processor controlled by the controller, wherein the controller sets a number of measurement target SSBs based on the RRC parameters, wherein the signal processor checks a validity of the set number of SSBs, and the controller stores valid SSB information in the storage based on the checking result, verifies a number of valid SSBs based on the stored valid SSB information, and controls the signal processor or invalidates the neighbor cell so that the signal processor measures reference signal received power of the neighbor cell based on a verification result.Type: ApplicationFiled: April 9, 2021Publication date: January 13, 2022Inventors: Dahae Chong, Joohyun Do
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Operating method of terminal in wireless communication system and terminal for performing the method
Patent number: 11218239Abstract: An operating method of a terminal performing a cell search using first and second memories for buffering input samples includes detecting a first primary synchronization signal (PSS) group from a first input sample group while buffering the first input sample group in the first memory in a first interval. While buffering a second input sample group in the second memory in a second interval following the first interval, the method detects a second PSS group from the second input sample group, and a first secondary synchronization signal (SSS) group corresponding to the first PSS group from the first input sample group. While buffering a third input sample group in the first memory in a third interval following the second interval, the method detects a third PSS group from the third input sample group, and a second SSS group corresponding to the second PSS group from the second input sample group.Type: GrantFiled: November 15, 2019Date of Patent: January 4, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungyoon Cho, Joohyun Do, Myungjoon Shim, Haechul Lee, Bora Lim, Dahae Chong, Seungjoong Hwang -
Publication number: 20210400607Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.Type: ApplicationFiled: September 3, 2021Publication date: December 23, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Dahae CHONG, Haechul LEE, Joohyun DO, Myungjoon SHIM, Sungyoon CHO
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Patent number: 11115946Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.Type: GrantFiled: November 11, 2019Date of Patent: September 7, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Dahae Chong, Haechul Lee, Joohyun Do, Myungjoon Shim, Sungyoon Cho
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Publication number: 20210266838Abstract: The present disclosure relates to an apparatus for wireless communication. The wireless communication apparatus comprises a baseband processor and a controller. The baseband processor is configured to generate state information about a channel of the wireless communication by processing a baseband signal. The controller is configured to activate a low power operation in a first channel state, where a channel quality is reduced compared to than a second channel state, based on the state information.Type: ApplicationFiled: September 30, 2020Publication date: August 26, 2021Inventors: DAHAE CHONG, Joohyun Do, Shinwoo Kang, Beomkon Kim
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Publication number: 20200169976Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.Type: ApplicationFiled: November 11, 2019Publication date: May 28, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Dahae CHONG, Haechul Lee, Joohyun Do, Myungjoon Shim, Sungyoon Cho
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OPERATING METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR PERFORMING THE METHOD
Publication number: 20200169347Abstract: An operating method of a terminal performing a cell search using first and second memories for buffering input samples includes detecting a first primary synchronization signal (PSS) group from a first input sample group while buffering the first input sample group in the first memory in a first interval. While buffering a second input sample group in the second memory in a second interval following the first interval, the method detects a second PSS group from the second input sample group, and a first secondary synchronization signal (SSS) group corresponding to the first PSS group from the first input sample group. While buffering a third input sample group in the first memory in a third interval following the second interval, the method detects a third PSS group from the third input sample group, and a second SSS group corresponding to the second PSS group from the second input sample group.Type: ApplicationFiled: November 15, 2019Publication date: May 28, 2020Inventors: SUNGYOON CHO, JOOHYUN DO, MYUNGJOON SHIM, HAECHUL LEE, BORA LIM, DAHAE CHONG, SEUNGJOONG HWANG -
Publication number: 20200169974Abstract: A wireless communication device including processing circuitry configured to generate first synchronization signal measurement values by combining sets of correlation values, the sets of correlation values being based on a reception signal, and each of the sets of correlation values having a number of correlation values equal to a first accumulation count, determine whether a valid synchronization signal measurement value is detected among the first synchronization signal measurement values based on a criterion, determine a frequency corresponding to the first valid synchronization signal measurement value as a synchronization frequency in response to determining the valid synchronization signal measurement value is detected, determine a second accumulation count in response to determining the valid synchronization signal measurement value is not detected, generate second synchronization signal measurement values based on the second accumulation count, and perform an initial access operation for synchronizatiType: ApplicationFiled: September 19, 2019Publication date: May 28, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Haechul Lee, Dahae Chong, Sungyoon Cho
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Patent number: 9817128Abstract: Disclosed herein are a method of generating a correlation function with no side-peak and a system for tracking a BOC signal in order to synchronize the BOC signal. The method of generating a correlation function includes step S1 of generating sub-correlation functions {Sl(?)}l=0N?1, step S2 of generating a first final correlation function R0(?) by combining some of the sub-correlation functions, and step S3 of generating a second final correlation function Rproposed(?) by combining R0(?) with each of the remaining sub-correlation functions that have not been used for the combination at step S2. The BOC signal is one or more of BOCsin(kn,n) and BOCcos(kn,n) signals.Type: GrantFiled: November 2, 2011Date of Patent: November 14, 2017Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Youngpo Lee, Dahae Chong, Junhwan Kim, Seung Goo Kang, Seokho Yoon
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Patent number: 8737544Abstract: A method and an apparatus of estimating a frequency offset in a wireless communication system are provided. An orthogonal frequency division multiplexing (OFDM) receiver performs envelope equalized processing (EEP) with respect to a reception signal and calculates a partial periodogram with a plurality of test values based on the reception signal which goes through the EEP. The OFDM receiver estimates a first frequency offset, a second frequency offset, and a third frequency offset based on two partial periodograms adjacent to each other among the partial periodograms for the plurality of test values.Type: GrantFiled: August 29, 2012Date of Patent: May 27, 2014Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Seokho Yoon, Dahae Chong, Junhwan Kim, Seung Goo Kang, Youngpo Lee