Patents by Inventor Joon Kui Ahn

Joon Kui Ahn 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).

  • Publication number: 20180035414
    Abstract: A User Equipment (UE) receives a Physical Downlink Control Channel (PDCCH) at subframe k and decodes at the subframe k a set of PDCCH candidates including L control channel elements (CCEs). The L CCEs are contiguously located from a position given by using a variable of Yk and a modulo (N/L) operation, where N represents a total number of CCEs in the subframe k, Yk is defined by Yk=(A*Yk?1)mod D, and A and D are predetermined constant values. When k=0, Y?1 is determined based on a UE identifier having 16-bits.
    Type: Application
    Filed: October 12, 2017
    Publication date: February 1, 2018
    Inventors: Dae Won LEE, Ki Jun KIM, Dong Wook ROH, Yu Jin NOH, Joon Kui AHN, Jung Hoon LEE
  • Publication number: 20180034614
    Abstract: Provided are a method and a device for transmitting an acknowledgement/not-acknowledgement (ACK/NACK) of a terminal which is set with a plurality of serving cells. The method comprises the steps of: receiving data in a subframe n of a second serving cell; and transmitting an ACK/NACK signal for the data in a subframe n+kSCC(n) of a first serving cell connected to the subframe n of the second serving cell, wherein the first serving cell is a primary cell for the terminal to execute an initial connection establishment procedure or a connection reestablishment procedure, and uses a frequency division duplex (FDD) wireless frame, the second serving cell is a secondary cell allocated to the terminal in addition to the primary cell, and uses a time division duplex (TDD) wireless frame, and the kSCC(n) is a previously determined value.
    Type: Application
    Filed: September 28, 2017
    Publication date: February 1, 2018
    Inventors: Dong Youn SEO, Min Gyu KIM, Suck Chel YANG, Joon Kui AHN
  • Patent number: 9883494
    Abstract: A method and apparatus for transmitting control information are discussed. The method can include generating uplink control information (UCI) and transmitting the UCI through an physical uplink control channel (PUCCH) in a subframe, wherein when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request (HARD)-acknowledgement (ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a number of HARQ-ACK information bits and a SR bit. A value of the SR bit can be determined by whether or not the subframe is configured for a scheduling request.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Min Gyu Kim, Suck Chel Yang, Joon Kui Ahn, Dong Youn Seo
  • Patent number: 9877319
    Abstract: A method of acquiring information on a resource region for transmitting PHICH and a method of receiving PDCCH using the same are disclosed. The resource region for transmitting the PHICH can be specified by first information corresponding to the per-subframe PHICH number and second information corresponding to a duration of the PHICH within the subframe. The first information can be specified into a form resulting from multiplying a predetermined basic number by a specific constant. And, the specific constant can be transmitted via PBCH. Moreover, the second information can be acquired from the PBCH as well.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: January 23, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Jung Hoon Lee, Dae Won Lee, Dong Youn Seo, Dong Wook Roh, Suk Hyon Yoon
  • Patent number: 9877309
    Abstract: Provided are a method and an apparatus for transmitting uplink control information (UCI), which is carried out by a terminal in a wireless communication system. If the number of information bits of the UCI falls inside a specific range when different types of UCI are transmitted through the same PUCCH format, a bit sequence of each of the UCI are channel-coded by aligning/interleaving, wherein the aligning/interleaving is carried out so that the UCI having high importance are channel-coded so as to have better decoding performance.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: January 23, 2018
    Assignee: LG Electronics Inc.
    Inventors: Dong Youn Seo, Suck Chel Yang, Joon Kui Ahn
  • Patent number: 9871635
    Abstract: Provided are a method and apparatus for uplink transmission in a wireless communication system. A terminal sets an uplink transmission mode for a plurality of component carriers, multiplexes an uplink transport block and uplink control information in accordance with the uplink transmission mode, and transmits the multiplexed control information through one of the plurality of component carriers on an uplink channel.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: January 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Joon Kui Ahn, Min Gyu Kim, Suck Chel Yang
  • Patent number: 9871634
    Abstract: A method and apparatus for transmitting an uplink signal in a wireless communication system are discussed. The method includes multiplexing control information in all layers with a plurality of data blocks of the uplink signal; and transmitting the uplink signal to a base station, wherein the number of modulation symbols per layer for the control information is determined using a reciprocal of a sum of spectral efficiencies for respective data blocks of the plurality of data blocks, and a spectral efficiency for a data block is obtained based on a ratio of a size of the data block to the number of resource elements (REs) for an initial physical uplink shared channel (PUSCH) transmission of the data block.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: January 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: In Kwon Seo, Dae Won Lee, Ki Jun Kim, Joon Kui Ahn
  • Patent number: 9872309
    Abstract: A communication method in a wireless communication system, the method includes receiving a first control channel including first scheduling information on a first physical downlink shared channel (PDSCH); receiving a second control channel including second scheduling information on a second PDSCH; determining whether the first PDSCH and the second PDSCH are scheduled to be overlapped on at least one subframe; and determining which one of the first PDSCH and the second PDSCH is to be received on the at least one overlapped subframe.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Han Byul Seo, Dong Youn Seo
  • Publication number: 20180006701
    Abstract: A method for transmitting channel status information of a user equipment (UE) in a wireless communication system. The UE reports first channel information to a base station periodically; and reports second channel information to the base station periodically. The first channel information and the second channel information are pieces of information combined to indicate one precoding matrix. The second channel information reported in a specific subframe is calculated based on last reported first channel information. A channel quality indicator (CQI) reported in the specific subframe is calculated based on one precoding matrix indicated by the last reported first channel information and the second channel information reported in the specific subframe.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Joon Kui AHN, Suck Chel YANG, Min Gyu KIM, Dong Youn SEO
  • Publication number: 20180007685
    Abstract: A method for adaptively allocating resources of an uplink control channel according to a system situation is disclosed. If a base station (BS) recognizes the system situation, establishes control information for resource allocation, and transmits the control information to a mobile station (MS), the mobile station (MS) allocates resources for transmitting uplink control information using a specific block or a specific resource distribution method according to the corresponding control information. The system situation may be changed according to the number of users contained in the BS's coverage or the usage of a multi-antenna. The variation of the system situation is actively reflected so that the uplink channel resources can be effectively used.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Bong Hoe KIM, Ki Jun KIM, Suk Hyon YOON, In Jae JUNG, Dae Won LEE, Joon Kui AHN, Dong Youn SEO
  • Publication number: 20180006782
    Abstract: According to one embodiment, a method for transmitting an uplink signal includes transmitting the uplink signal including a block of data symbols. The block of data symbols are mapped to at least two sets of subcarrier blocks. Each data symbol of the block of data symbols is mapped to one of subcarriers of the at least two sets of subcarrier blocks. The at least two sets of subcarrier blocks are not contiguous in frequency. The block of data symbols are mapped in sequence starting with a first data symbol to the at least two sets of subcarrier blocks and in increasing order of subcarrier index.
    Type: Application
    Filed: September 18, 2017
    Publication date: January 4, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Bong Hoe KIM, Dong Wook ROH, Joon Kui AHN, Dong Youn SEO, Jung Hoon LEE
  • Patent number: 9854567
    Abstract: A method and a user equipment for controlling an uplink transmission at in a wireless communications system are discussed, the user equipment being configured with multiple component carriers. The method according to an embodiment includes receiving, from a base station, Radio Resource Control (RRC) configuration information for a channel status information report; and performing a procedure for periodically transmitting channel status information to the base station. If the corresponding downlink component carrier is in an active state at a time for transmitting the channel status information, a transmission of the channel status information report is performed at the time. If the corresponding downlink component carrier is in a non-active state at a time for transmitting the channel status information report, the transmission of the channel status information report is skipped at the time. Signal reception is limited by the user equipment on a downlink component carrier in the non-active state.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: December 26, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Suck Chel Yang, Dong Youn Seo, Min Gyu Kim, Joon Kui Ahn, Jung Hoon Lee
  • Patent number: 9848395
    Abstract: The present invention relates to a method for controlling uplink transmission power and to a wireless device using same in a wireless communication system. The wireless device receives determines uplink transmission power in consideration of the overlap period between subframes between a first serving cell belonging to a first timing advance (TA) group and a second serving cell belonging to the second TA group, and transmits an uplink channel on the basis of the uplink transmission power.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 19, 2017
    Assignee: LG Electronics Inc.
    Inventors: Joon Kui Ahn, Su Hwan Lim, Suck Chel Yang, Dong Youn Seo
  • Patent number: 9847854
    Abstract: A method for configuring an acknowledgement for hybrid automatic repeat request (HARQ), and a user equipment therefore are discussed. The method according to one embodiment includes receiving downlink data through one of first and second downlink component carriers; and determining a resource used for a physical uplink control channel (PUCCH). The resource used for the PUCCH is determined based on a downlink component carrier. If downlink data is received through the first downlink component carrier, the resource used for the PUCCH is determined by using a control channel element (CCE) of a physical downlink control channel (PDCCH). If the downlink data is received through the second downlink component carrier, the resource used for the PUCCH is determined by using a radio resource control (RRC) message. The method according to the embodiment further includes transmitting an acknowledgement (ACK)/negative-acknowledgement (NACK) signal for the downlink data using the resource used for the PUCCH.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: December 19, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Min Gyu Kim, Suck Chel Yang, Joon Kui Ahn
  • Patent number: 9843430
    Abstract: Provided are a method and an apparatus for a user equipment, which is allocated a plurality of serving cells, receiving acknowledgement/negative acknowledgement (ACK/NACK) in a wireless communication system. The method comprises: transmitting uplink data through a physical uplink shared channel (PUSCH); and receiving ACK/NACK with respect to the uplink through a physical hybrid-ARQ indicator channel (PHICH), wherein a serving cell that receives the ACK/NACK is selected from one or more serving cells, which the user equipment monitors to detect an uplink grant that schedules the PUSCH.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: December 12, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Han Byul Seo, Suck Chel Yang, Joon Kui Ahn
  • Patent number: 9839017
    Abstract: Provided is a method and an apparatus for transmitting uplink control information by a terminal in wireless communication system. When a PUCCH resource used for transmitting only periodic CSI from a subframe, the resource is a first resource, and a resource indicated by ARI is a second resource, when a setting allows transmitting together ACK/NACK and the periodic CSI through a PUCCH from the same subframe, the first resource and the second resource are mutually exclusive, and the second resource that is used for transmitting together the ACK/NACK and the periodic CSI uses the resource indicated by the ARI from resources determined by an RRC.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 5, 2017
    Assignee: LG Electronics Inc.
    Inventors: Dong Youn Seo, Suck Chel Yang, Joon Kui Ahn
  • Patent number: 9839014
    Abstract: A method is presented of reporting control information in a wireless communication system in which M downlink time divisional duplex (TDD) subframes are associated with an uplink TDD subframe. A user equipment (UE), supporting at least one cell including a primary cell, receives a radio resource control (RRC) message indicating resource allocation information used for a first PUCCH format. The UE receives a first physical downlink shared channel (PDSCH) and a second PDSCH in one of the M downlink TDD subframes, wherein the second PDSCH is received with a downlink assignment index (DAI). The UE selects a physical uplink control channel (PUCCH) format among a plurality of PUCCH formats including the first PUCCH format and a second PUCCH format, and transmits a positive-acknowledgement (ACK)/negative-acknowledgement (NACK) signal for the first and second PDSCHs by using the selected PUCCH format.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: December 5, 2017
    Assignee: LG Electronics Inc.
    Inventors: Suck Chel Yang, Joon Kui Ahn, Dong Youn Seo, Min Gyu Kim
  • Publication number: 20170347343
    Abstract: The present invention relates to a method for configuring a starting position of a control channel in a wireless communication system, and a terminal using the same. The method includes receiving duration information about a physical downlink control channel from the first orthogonal frequency division multiplexing (OFDM) symbol of a downlink subframe; and configuring a first OFDM symbol after OFDM symbols indicated by the duration information, as a starting point of an enhanced-physical downlink control channel. The downlink subframe includes a plurality of subcarriers in a frequency domain and 12 or 14 OFDM symbols in a time domain. The PDCCH includes the first N (N is a natural number of from 1 to 4) number of OFDM symbols of the downlink subframe. The duration information indicates the N number of OFDM symbols. The E-PDCCH comprises the starting point to the last OFDM symbol of the downlink subframe.
    Type: Application
    Filed: August 14, 2017
    Publication date: November 30, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Youn SEO, Joon Kui AHN, Suck Chel YANG, Han Byul SEO
  • Patent number: RE46693
    Abstract: The present invention relates to receiving control information in an orthogonal frequency division multiplexing (OFDM) system of a mobile communication system. The present invention includes receiving information related to a number of OFDM symbols in a subframe for receiving first control information, receiving information related to a number of OFDM symbols in the subframe for receiving second control information, decoding the first control information according to the received information related to the number of OFDM symbols in the subframe for receiving the first control information, and decoding the second control information according to the received information related to the number of OFDM symbols in the subframe for receiving the second control information, wherein the number of OFDM symbols for receiving the first control information is less than or equal to the number of OFDM symbols for receiving the second control information.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Young Woo Yun, Ki Jun Kim, Eun Sun Kim, Dae Won Lee, Dong Youn Seo, Suk Hyon Yoon
  • Patent number: RE46694
    Abstract: The present invention relates to receiving control information in an orthogonal frequency division multiplexing (OFDM) system of a mobile communication system. The present invention includes receiving information related to a number of OFDM symbols in a subframe for receiving first control information, receiving information related to a number of OFDM symbols in the subframe for receiving second control information, decoding the first control information according to the received information related to the number of OFDM symbols in the subframe for receiving the first control information, and decoding the second control information according to the received information related to the number of OFDM symbols in the subframe for receiving the second control information, wherein the number of OFDM symbols for receiving the first control information is less than or equal to the number of OFDM symbols for receiving the second control information.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Young Woo Yun, Ki Jun Kim, Eun Sun Kim, Dae Won Lee, Dong Youn Seo, Suk Hyon Yoon