Patents by Inventor Young-Jo Ko
Young-Jo Ko 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: 20240147487Abstract: The method for transmitting control information in a mobile communication system includes: determining a control channel resource for transmitting control information by means of the data channel region; and transmitting the control information using the determined control channel resource. A capacity for control information, which increases for multiple user multiple-input multiple-out (MIMOs) in a heterogeneous network environment, for heterogeneous network interference control using carrier aggregation, for frequent use of a multicast-broadcast single frequency network (MBSFN) subframe, and for a CoMP transmission control, may be satisfied. Further, an adaptive resource allocation based on a requested capacity for control information may be enabled, and the efficient utilization of resources may also be enabled.Type: ApplicationFiled: January 8, 2024Publication date: May 2, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Bang-Won Seo, Young-Jo Ko, Tae-Gyun Noh, Jae-Young Ahn
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Publication number: 20240146409Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.Type: ApplicationFiled: January 6, 2024Publication date: May 2, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Kap Seok CHANG, Il Gyu KIM, Hyeong Geun PARK, Young Jo KO, Hyo Seok Yl, Chan Bok JEONG, Young Hoon KIM, Seung Chan BANG
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Publication number: 20240137821Abstract: Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.Type: ApplicationFiled: October 22, 2023Publication date: April 25, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Gi PARK, Young-Jo KO, IL GYU KIM, Jung Im KIM, Jun Sik KIM, Sung Cheol CHANG, Sun Mi JUN, Yong Seouk CHOI
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Publication number: 20240097860Abstract: Provided is a data transmission system using a carrier aggregation. The data transmission system may assign a radio resource based on a correspondence relationship between a downlink and an uplink, and may transmit data using the assigned radio resource.Type: ApplicationFiled: October 26, 2023Publication date: March 21, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Young Jo KO, Tae Gyun NOH, Kyoung Seok LEE, Bang Won SEO, Byung Jang JEONG, Heesoo LEE
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Publication number: 20240097770Abstract: An operation method of a first access point (AP) may comprise: transmitting, to a control device of a base station, channel information between the first AP and one or more user equipments (UEs) connected to the base station; receiving allocation information determined by the control device; identifying an entity to decode a uplink (UL) signal of each of the one or more UEs from among a plurality of APs and the control device constituting the base station, based on the allocation information; directly performing a decoding operation on a first UL signal received from a first UE among the one or more UEs, based on the allocation information; and transmitting, to the control device, a first report related to a result of the decoding operation on the first UL signal.Type: ApplicationFiled: December 29, 2022Publication date: March 21, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Jung Ho MYUNG, Young-Jo KO, Keun Young KIM, Kapseok CHANG
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Publication number: 20240080826Abstract: A method may comprise: generating first and second FA sequences corresponding to first and second FAs, respectively, based on a first sequence; mapping elements of first and second FA signals, which are respectively generated by modulating the first and second FA sequences, to first and second subcarrier groups corresponding to the first and second FAs, first base station, and first symbol; generating third and fourth FA sequences corresponding to the first and second FAs, respectively, based on a second sequence; mapping elements of third and fourth FA signals, which are respectively generated by modulating the first and second FA sequences, to third and fourth subcarrier groups corresponding to the first and second FAs, second base station, and second symbol; and transmitting a first transmission signal including the first and second FA signals, and a second transmission signal including the third and fourth FA signals.Type: ApplicationFiled: June 20, 2023Publication date: March 7, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kapseok CHANG, Cheul Soon KIM, Young-Jo KO, Jung Hoon LEE
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Publication number: 20240064792Abstract: Disclosed is a wireless communication system using multiple transmission and reception points. In a wireless communication system having a first transmission and reception point and at least one second transmission and reception point belonging to the same cell, the first transmission and reception point has a wider transmission area than the at least one second transmission and reception point, and the first transmission and reception point and the at least one second transmission and reception point generate downlink transmission signals by using the same physical layer cell ID or virtual cell IDs allocated to each terminal, and then the terminals generate uplink transmission signals by using the allocated virtual cell IDs.Type: ApplicationFiled: November 3, 2023Publication date: February 22, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Young-Jo KO, Tae-Gyun NOH, Hee-Soo LEE, Bang-Won SEO, Jae-Young AHN
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Publication number: 20240040569Abstract: When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.Type: ApplicationFiled: October 9, 2023Publication date: February 1, 2024Applicant: Electronics and Telecommunications Research InstituteInventors: Young-Jo KO, Hyeong-Geun PARK, Il-Gyu KIM, Kapseok CHANG, Hyoseok Yi, Young-Hoon Kim, Seung-Chan Bang
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Patent number: 11888774Abstract: An operation method of a transmitter in a communication system may comprise: configuring a first reference signal region for transmission of a first reference signal in the delay-Doppler domain; arranging the first reference signal having a sequence form in a specific region within the first reference signal region; transforming a delay-Doppler domain signal including the first reference signal into a time domain signal; and transmitting the time domain signal to a receiver.Type: GrantFiled: October 13, 2021Date of Patent: January 30, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Kyeong Pyo Kim, Woo Ram Shin, Young Jo Ko, Kap Seok Chang
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Patent number: 11871434Abstract: The method for transmitting control information in a mobile communication system includes: determining a control channel resource for transmitting control information by means of the data channel region; and transmitting the control information using the determined control channel resource. A capacity for control information, which increases for multiple user multiple-input multiple-out (MIMOs) in a heterogeneous network environment, for heterogeneous network interference control using carrier aggregation, for frequent use of a multicast-broadcast single frequency network (MBSFN) subframe, and for a CoMP transmission control, may be satisfied. Further, an adaptive resource allocation based on a requested capacity for control information may be enabled, and the efficient utilization of resources may also be enabled.Type: GrantFiled: February 2, 2023Date of Patent: January 9, 2024Assignee: Electronics and Telecommunications Research Inst.Inventors: Bang-Won Seo, Young-Jo Ko, Tae-Gyun Noh, Jae-Young Ahn
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Patent number: 11870546Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.Type: GrantFiled: August 19, 2022Date of Patent: January 9, 2024Assignee: Electronics and Telecommunications Research Inst.Inventors: Kap Seok Chang, Il Gyu Kim, Hyeong Geun Park, Young Jo Ko, Hyo Seok Yi, Chan Bok Jeong, Young Hoon Kim, Seung Chan Bang
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Publication number: 20230413278Abstract: Data transmission and reception is provided by configuring control channels in a wireless communication system using a plurality of carriers. User equipment (UE) may monitor physical downlink control channel (PDCCH) candidates within common search spaces (CSSs) and User Equipment-specific search spaces (USSs). If the UE is configured with cross-carrier scheduling, when two PDCCH candidates originating from a CSS and a USS, respectively, have cyclic redundancy check (CRC) scrambled by the same Radio Network Temporary Identifier (RNTI) and have a common payload size and the same first control channel element (CCE) index, the UE may interpret that only the PDCCH originating from the CSS is transmitted, thereby solving ambiguity of downlink control information (DCI) detection.Type: ApplicationFiled: August 28, 2023Publication date: December 21, 2023Applicant: Electronics and Telecommunications Research InstituteInventors: Young Jo KO, Bang Won SEO, Jae Young AHN
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Publication number: 20230396293Abstract: A method of a transmitting node may comprise: modulating a codeword corresponding to data to be transmitted; generating sparse space-frequency block code (SSFBC)-coded symbols by encoding the modulated codeword in an SSFBC scheme; performing precoding on the SSFBC-coded symbols for each of subbands respectively corresponding to transmit antenna groups; and transmit the precoded SSFBC-coded symbols by performing beamforming on the precoded SSFBC-coded symbols using at least one array antenna group among two or more array antenna groups.Type: ApplicationFiled: June 2, 2023Publication date: December 7, 2023Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan ho YOON, Young Jo KO, Kap Seok CHANG, Won Cheol CHO
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Patent number: 11812459Abstract: Disclosed is a wireless communication system using multiple transmission and reception points. In a wireless communication system having a first transmission and reception point and at least one second transmission and reception point belonging to the same cell, the first transmission and reception point has a wider transmission area than the at least one second transmission and reception point, and the first transmission and reception point and the at least one second transmission and reception point generate downlink transmission signals by using the same physical layer cell ID or virtual cell IDs allocated to each terminal, and then the terminals generate uplink transmission signals by using the allocated virtual cell IDs.Type: GrantFiled: February 27, 2022Date of Patent: November 7, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Young-Jo Ko, Tae-Gyun Noh, Hee-Soo Lee, Bang-Won Seo, Jae-young Ahn
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Publication number: 20230353296Abstract: A wireless communication system includes a first transmitter and a second transmitter. For a transmission or reception of data of a first user equipment and data of a second user equipment on resources shared by the first user equipment and the second user equipment, the first transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a first data signal of the first user equipment and a second data signal of the second user equipment, and the second transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a third data signal of the first user equipment and a fourth data signal of the second user equipment.Type: ApplicationFiled: June 12, 2023Publication date: November 2, 2023Inventors: Sameh ELDESSOKI, Johannes DOMMEL, Wooram SHIN, Thomas HAUSTEIN, Lars THIELE, Young-Jo KO, SeungKwon BAEK, Chanho YOON
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Patent number: 11804938Abstract: Provided is a data transmission system using a carrier aggregation. The data transmission system may assign a radio resource based on a correspondence relationship between a downlink and an uplink, and may transmit data using the assigned radio resource.Type: GrantFiled: December 3, 2020Date of Patent: October 31, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Young Jo Ko, Tae Gyun Noh, Kyoung Seok Lee, Bang Won Seo, Byung Jang Jeong, Heesoo Lee
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Patent number: 11792667Abstract: An operation method of a base station in a communication system may include: performing an operation for channel measurement between the base station and a terminal; determining a size of multiple spreading resource blocks configured in a second two-dimensional (2D) domain based on a result of the channel measurement; transmitting information indicating the size of the multiple spreading resource blocks to the terminal; and performing a communication procedure with the terminal based on the multiple spreading resource blocks having the size.Type: GrantFiled: December 29, 2021Date of Patent: October 17, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Wooram Shin, Kyeongpyo Kim, Young-Jo Ko, Kapseok Chang
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Patent number: 11785600Abstract: When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.Type: GrantFiled: February 6, 2021Date of Patent: October 10, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Young-Jo Ko, Hyeong-Geun Park, Il-Gyu Kim, Kapseok Chang, Hyoseok Yi, Young-Hoon Kim, Seung-Chan Bang
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Publication number: 20230319820Abstract: Disclosed are a method and an apparatus for uplink transmission in a communication system. An operation method of a terminal includes: receiving, from a base station, first SFI information indicating n flexible symbol(s); receiving, from the base station, second SFI information re-indicating m symbol(s) of the n flexible symbol(s) as uplink (UL) symbol(s); and transmitting an SRS to the base station through the m symbol(s) re-indicated as a UL symbol among the n flexible symbol(s) indicated as a flexible symbol. Therefore, performance of the communication system can be improved.Type: ApplicationFiled: June 1, 2023Publication date: October 5, 2023Inventors: Cheul Soon KIM, Gi Yoon PARK, Seung Kwon BAEK, Young Jo KO
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Publication number: 20230319738Abstract: An operation method of a first communication apparatus may include: identifying one or more synchronization signal components constituting a synchronization signal component set; generating a plurality of synchronization signal sections based on the one or more synchronization signal components and a plurality of primary coefficients corresponding to the one or more synchronization signal components; generating one or more synchronization signal parts based on a combination of the plurality of synchronization signal sections; generating one or more synchronization signals based on a combination of the one or more synchronization signal parts in time domain; and transmitting the generated one or more synchronization signals.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Inventors: Byung Jae KWAK, Kapseok CHANG, Won Cheol CHO, Young-Jo KO, Yong Sun KIM