Patents by Inventor Dong Cheol Kim

Dong Cheol Kim 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: 20180227901
    Abstract: A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.
    Type: Application
    Filed: April 6, 2018
    Publication date: August 9, 2018
    Inventors: Yeong Hyeon KWON, Seung Hee HAN, Hyun Woo LEE, Sung Ho MOON, Jin Sam KWAK, Dong Cheol KIM, Min Seok NOH
  • Patent number: 10044461
    Abstract: Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: August 7, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Patent number: 9985767
    Abstract: A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: May 29, 2018
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Jae Hoon Chung, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • Patent number: 9967864
    Abstract: A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 8, 2018
    Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Sung Ho Moon, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • Publication number: 20180041299
    Abstract: Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 8, 2018
    Inventors: Yeong Hyeon KWON, Seung Hee HAN, Hyun Hwa PARK, Dong Cheol KIM, Hyun Woo LEE, Min Seok NOH
  • Publication number: 20180041786
    Abstract: This invention relates to a method for providing a complex content including an advertisement content and a portable storage medium therefor. The method of providing a complex content including an advertisement content comprises: transmitting a decoding request signal to a server providing a decoding information for playing a multimedia content stored in the portable storage medium according to connecting the portable storage medium, receiving the decoding information for playing from the server, manipulating the multimedia content and the advertisement content corresponding to the multimedia content, and playing a complex content generated by manipulating the multimedia content and the advertisement content.
    Type: Application
    Filed: November 19, 2015
    Publication date: February 8, 2018
    Inventor: Dong Cheol Kim
  • Patent number: 9883493
    Abstract: A method and device for transmitting a power headroom report (PHR) by a user equipment (UE) in a communication system supporting a plurality of carriers. The method includes transmitting, to an eNode B (eNB), a power headroom report (PHR) related to the plurality of carriers configured for the UE. The power headroom report (PHR) comprises a first type power headroom (PH) and a second type power headroom (PH). While the first type power headroom (PH) is calculated for a power headroom report (PHR) related to a primary carrier and a non-primary carrier, the second type power headroom (PH) is calculated for a power headroom report (PHR) related to only the primary carrier. The second type power headroom (PH) is calculated for case of simultaneous transmission of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Cheol Kim, Sung Ho Moon, Han Gyu Cho, Jae Hoon Chung
  • Publication number: 20170366290
    Abstract: Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.
    Type: Application
    Filed: September 6, 2017
    Publication date: December 21, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok NOH, Seung Hee HAN, Yeong Hyeon KWON, Hyun Woo LEE, Dong Cheol KIM, Jin Sam KWAK
  • Publication number: 20170359842
    Abstract: A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Min Seok NOH, Yeong Hyeon KWON, Jin Sam KWAK, Dong Cheol KIM, Sung Ho MOON, Seung Hee HAN, Hyun Woo LEE, Dragan VUJCIC
  • Publication number: 20170339700
    Abstract: Disclosed are a terminal device for controlling uplink transmission power and a method therefor. A receiving antenna receives uplink transmission mode change information from a base station. A processor determines a transmission power value to be used for the uplink transmission by means of an offset value corresponding to the uplink transmission mode change information. A transmitting antenna transmits an uplink signal with the determined transmission power value.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Inventors: Dong Cheol KIM, Seung Hee HAN
  • Patent number: 9806838
    Abstract: Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 31, 2017
    Assignee: EVOLVED WIRELESS LLC
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Hwa Park, Dong Cheol Kim, Hyun Woo Lee, Min Seok Noh
  • Publication number: 20170311275
    Abstract: A method of performing cell search includes receiving a primary synchronization signal (PSS) comprising a primary synchronization code (PSC) and receiving a secondary synchronization signal (SSS) comprising a first secondary synchronization code (SSC) and a second SSC, wherein the SSS includes a first SSS and a second SSS, the first SSC and the second SSC are arranged in that order in the first SSS, and the second SSC and the first SSC are arranged in that order in the second SSS. Detection performance on synchronization signals can be improved, and cell search can be performed more reliably.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 26, 2017
    Inventors: Seung Hee HAN, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Patent number: 9800364
    Abstract: Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 24, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Patent number: 9794039
    Abstract: A method for transmitting a reference signal by a user equipment (UE) in a wireless communication system. The UE generates an uplink reference signal in a subframe comprising first, second, third, fourth, fifth, sixth and seventh orthogonal frequency division multiplexing (OFDM) symbols in time domain and a plurality of subcarriers in frequency domain. The UE transmits the uplink reference signal to a base station in the third, fourth and fifth OFDM symbols. The transmitted uplink reference signal is hopped in the frequency domain, based on a cell specific hopping parameter.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 17, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Sam Kwak, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim
  • Publication number: 20170289988
    Abstract: A symbol mapping method for repetition coding is disclosed. The symbolmapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side usesrepetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.
    Type: Application
    Filed: June 15, 2017
    Publication date: October 5, 2017
    Inventors: Yeong Hyeon KWON, Seung Hee HAN, Hyun Woo LEE, Sung Ho MOON, Jin Sam KWAK, Dong Cheol KIM, Min Seok NOH
  • Publication number: 20170289982
    Abstract: A method of mapping a physical resource to a logical resource in a wireless communication system is described. The method includes dividing a physical frequency band into at least one frequency partition. Each frequency partition is divided into a localized region and a distributed region in a frequency domain. The method further includes mapping the at least one frequency partition into at least one logical resource unit. The localized region is directly mapped into the logical resource unit and the distributed region is mapped into the logical resource unit after rearranging subcarriers within the distributed region.
    Type: Application
    Filed: May 8, 2017
    Publication date: October 5, 2017
    Inventors: Jin Sam KWAK, Hong Won Park, Sung Gu Cho, Ki Ho Nam, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim
  • Patent number: 9750029
    Abstract: Disclosed are a terminal device for controlling uplink transmission power and a method therefor. A receiving antenna receives uplink transmission mode change information from a base station. A processor determines a transmission power value to be used for the uplink transmission by means of an offset value corresponding to the uplink transmission mode change information. A transmitting antenna transmits an uplink signal with the determined transmission power value.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: August 29, 2017
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Seung Hee Han
  • Patent number: 9750054
    Abstract: A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: August 29, 2017
    Assignee: GOLDPEAK INNOVATIONS INC
    Inventors: Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee, Dragan Vujcic
  • Patent number: 9750009
    Abstract: A method of allocating control information in a wireless communication system is provided. The method includes: allocating essential control information of a first system to a first sub-frame in a frame including a plurality of sub-frames each of which comprises a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and allocating essential control information of a second system to an nth sub-frame in a fixed position from the first sub-frame (where n is an integer satisfying n>1). Accordingly, in a frame supporting heterogeneous systems, essential control information can be fixedly allocated to a specific position while maintaining the number of system switching points, at which switching occurs between the systems, to one even if a radio resource allocation amount changes between the systems, and thus the essential control information that must be received by all user equipments can be effectively provided without the increase of overhead.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 29, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Sung Ho Moon, Minseok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
  • Patent number: RE46643
    Abstract: A method of generating a code sequence in a wireless communication system is disclosed. More specifically, the method includes recognizing a desired length of the code sequence, generating a code sequence having a length different from the desired length, and modifying the length of the generated code sequence to equal the desired length. Here, the step of modifying includes discarding at least one element of the generated code sequence or inserting at least one null element to the generated code sequence.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 19, 2017
    Assignee: EVOLVED WIRELESS LLC
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Hwa Park, Hyun Woo Lee, Dong Cheol Kim