Patents by Inventor Sung-Nam Hong

Sung-Nam Hong 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: 20170302315
    Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. The present invention relates to a NOMA system based FQAM connection method and an apparatus therefor. The present invention can increase the user transfer rate at a cell boundary. The scheduling method in a wireless communication system, according to an embodiment of the present invention, comprises a step of receiving a signal-to-interference-noise ratio (SINR) value and an alpha value from a terminal; a step of determining, on the basis of the SINR value and the alpha value, a Gaussian SINR value; a step of pairing users on the basis of the Gaussian SINR value; and a step of re-computing MCS on the basis of a re-computed alpha value.
    Type: Application
    Filed: September 16, 2015
    Publication date: October 19, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Min Sagong, Ji-Yun Seol, Woo-Myong Park, Seok-Ki Ahn, Chi-Woo Lim, Sung-Nam Hong
  • Publication number: 20170288706
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to a method and a device for efficiently shortening and puncturing a non-binary LDPC code, the method for a transmitter shortening and puncturing a non-binary code being capable of supporting various modulation methods by using a single non-binary code, and the method comprising the steps of: shortening, on the basis of a modulation method, at least one information bit in at least one information symbol constituting the non-binary code; encoding the at least one information symbol having a shortened information bit; and puncturing, on the basis of the modulation method, at least one parity code in at least one parity symbol obtained through the encoding step.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 5, 2017
    Inventors: Seok-Ki Ahn, Woo-Myoung Park, Min Sagong, Chi-Woo Lim, Sung-Nam Hong
  • Publication number: 20170265200
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to method and apparatus for performing a decoding with low complexity in a wireless communication system. A decoding method of a terminal in a wireless communication system comprises determining a first characteristic value indicating a statistical characteristic of an interference signal based on a received signal of a base station, determining a second characteristic value indicating a statistical characteristic of an interference signal based on data received from the base station, and decoding the data according to a decoding scheme corresponding to a difference of the first characteristic value and the second characteristic value.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 14, 2017
    Inventors: Min Sagong, Woo-Myoung Park, Seok-Ki Ahn, Chi-Woo Lim, Sung-Nam Hong
  • Publication number: 20170257185
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method for transmitting a signal in transmitting apparatus in a wireless communication system supporting a hybrid automatic repeat request (HARQ) scheme is provided. The method includes transmitting a signal to a receiving apparatus; detecting there is a need for a retransmission operation for the signal; and performing the retransmission operation for the signal based on at least one of a reception scheme used in the receiving apparatus or an interference characteristic of an interference signal.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Sung-Nam Hong, Tae-Young Kim, Ji-Yun Seol
  • Publication number: 20170111887
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes transmitting, to an evolved node B (eNB), information related to channel quality, information related to a reception (Rx) scheme which the UE is able to apply, and information related to an interference environment characteristic, and receiving, from the eNB, information related to a modulation and coding scheme (MCS) to be applied in the UE.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Inventors: Sung-Nam Hong, Ji-Yun Seol, Tae-Young Kim
  • Publication number: 20160366006
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Provided is an operation method of a base station in a wireless communication system. The method comprises: receiving, from a terminal, at least one piece of information among channel quality information on a resource region allocated to the terminal and non-Gaussian information on a nulling region corresponding to the resource region; and determining a modulation order for the terminal, a code rate, a ratio of the resource region to the nulling region based on the channel quality information and the non-Gaussian information.
    Type: Application
    Filed: February 27, 2015
    Publication date: December 15, 2016
    Inventors: Sung-Nam HONG, Min SAGONG, Chi-Woo LIM
  • Publication number: 20160294523
    Abstract: The present invention relates to a method for transmitting data in a wireless communication system, comprising the steps of: allocating, by a base station, a resource for transmitting data modulated by a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme in which a QAM scheme and a FSK scheme are combined; transmitting, by the base station, a sequence modulated by the FQAM scheme, to a mobile station, via an interference measurement channel; transmitting, by the base station, a reference signal for measuring channel quality information (CQI) to the mobile station; receiving, by the base station, CQI estimated based on an interference characteristic of the interference measurement channel, from the mobile station, and performing scheduling of the mobile station based on the received CQI and transmitting, by the base station, the data modulated by the FQAM scheme to the mobile station.
    Type: Application
    Filed: November 20, 2014
    Publication date: October 6, 2016
    Inventors: Su-Ryong Jeong, Jeong-Ho Park, Jae-Won Kim, Min Sagong, Hyun-Kyu Yu, Sung-Nam Hong
  • Patent number: 9426015
    Abstract: A method of operating a base station in a wireless communication system supporting Frequency-Quadrature Amplitude Modulation (FQAM) and Multi-Tone FQAM (MT-FQAM) is provided. The method includes determining a modulation scheme of data to be transmitted, and modulating the data according to the determined modulation scheme, wherein if at least one resource block is included in the data and if the at least one resource block is mapped to at least one tone in a distributed manner, the MT-FQAM scheme is selected, or if one resource block is included in the data and if the one resource block is mapped to at least one tone in a continuous manner, the FQAM scheme is selected, or if multiple resource blocks are included in the data and if the multiple resource blocks are mapped to at least one tone in a continuous manner, the MT-FQAM scheme is selected.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 23, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chi-Woo Lim, Min Sagong, Sung-Nam Hong, Hyun-Kyu Yu, Kyung-Whoon Cheun
  • Patent number: 9401833
    Abstract: One or more embodiments provides method for transmitting a signal by a transmitting apparatus in wireless a communication system supporting a modulation scheme based on a quadrature amplitude modulation (QAM) scheme and a frequency shift keying (FSK) scheme. The method includes determining at least one first bit which will be mapped to at least one QAM symbol and at least one second bit which will be mapped to at least one FSK symbol among bits included in an encoded input bit stream; and generating a modulation symbol by mapping the at least one first bit to the at least one QAM symbol and mapping the at least one second bit to the at least one FSK symbol based on a Hamming distance of the at least one second bit.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: July 26, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Sagong, Won-Il Roh, Jeong-Ho Park, Ji-Yun Seol, Hyun-Kyu Yu, Chi-Woo Lim, Kyung-Whoon Cheun, Jae-Weon Cho, Sung-Nam Hong
  • Publication number: 20160211994
    Abstract: The present invention relates to a method for operating, by a base station, multiple modulation schemes in a wireless communication system, the method comprising the steps of: calculating the number of terminals, among the terminals in a cell managed by the base station, of which a channel state is included in a state that is lower than a preset state; reporting information related to the calculated number of terminals to an upstream entity of the base station; receiving information about a band, assigned by the upstream entity, for a hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) scheme on the basis of a QAM scheme and a FSK scheme; and transmitting downwardly the information about the band for the FQAM scheme to the terminals of which a channel state is included in a state that is lower than the preset state. Other modified embodiments on the basis of the technical concept of the present invention are also possible.
    Type: Application
    Filed: August 25, 2014
    Publication date: July 21, 2016
    Inventors: Min Sagong, Jeong-Ho Park, Jae-Won Kim, Hyun-Kyu Yu, Chi-Woo Lim, Su-Ryong Jeong, Sung-Nam Hong
  • Publication number: 20160173306
    Abstract: The present invention relates to a method for estimating a channel in a wireless communication system. In the method, a reference value is generated on the basis of a value indicating a non-Gaussian characteristic of an inter-cell interference signal and power values of received pilot symbols, the reference value is compared with each of the power values of the pilot symbols, at least one pilot symbol, which is relatively lightly damaged by the inter-cell interference signal, is selected, and a channel is estimated using the at least one selected pilot symbol.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 16, 2016
    Inventors: Sung-Nam Hong, Min Sagong, Chi-Woo Lim, Kyung-Whoon Cheun
  • Patent number: 9331884
    Abstract: An apparatus and a method for operating a transmission end in a wireless communication system that supports Frequency and Quadrature-Amplitude Modulation (FQAM) are provided. The method includes dividing an information bit stream into a plurality of portions, encoding each of the plurality of portions using different encoding schemes, and generating an FQAM symbol by combining result values of the encoding of each of the plurality of portions, wherein the encoding schemes are different according to at least one of an encoding order, an encoding rate, an input size, and an encoding technique.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 3, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Nam Hong, Min Sagong, Chi-Woo Lim, Hyun-Kyu Yu, Kyung-Whoon Cheun
  • Patent number: 9306648
    Abstract: A method of a terminal that forms beams and a device for performing beam tracking in a communication system that supports beamforming are provided. The method includes detecting, by the terminal, an object located at a periphery of the terminal and performing beam tracking through beams formed by the terminal, except for a beam that is formed in a direction in which the detected object is located.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Sagong, Chi-Woo Lim, Su-Ryong Jeong, Sung-Nam Hong
  • Patent number: 9300517
    Abstract: A method for transmitting a signal by a signal transmission apparatus in a communication system is provided. The method includes detecting a parameter related to a Quadrature Amplitude Modulation (QAM) scheme and a parameter related to a Frequency Shift Keying (FSK) scheme based on channel quality and an interference component, and modulating information bits using a modulation scheme based on the QAM scheme and the FSK scheme which uses the parameter related to the QAM scheme and the parameter related to the FSK scheme.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho Park, Tae-Young Kim, Won-Il Roh, Min Sagong, Ji-Yun Seol, Hyun-Kyu Yu, Kyung-Whoon Cheun, Jae-Weon Cho, Sung-Nam Hong
  • Patent number: 9288091
    Abstract: A modulation method and an apparatus with consideration of adaptive Hybrid Automatic Repeat reQuest (HARQ) in a wireless communication system are provided. The method of a transmission end supporting a hybrid modulation technique in which different types of modulation schemes are mixed, information of a channel state with a reception end is collected. A modulation order of a first type of a modulation scheme and a modulation order of a second type of a modulation scheme are determined. The modulation order of a first type of a modulation scheme and a modulation order of a second type of a modulation scheme form the hybrid modulation technique.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Yun Seol, Tae-Young Kim, Won-Il Roh, Jeong-Ho Park, Min Sagong, Hyun-Kyu Yu, Kyung-Whoon Cheun, Jae-Weon Cho, Sung-Nam Hong
  • Publication number: 20160036609
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as a Long Term Evolution (LTE). A method for transmitting data in a transmitting apparatus in a wireless communication system supporting a non-binary channel code is provided. The method includes generating at least one modulation symbol by modulating at least one code symbol based on a predetermined modulation scheme; and transmitting the at least one modulation symbol to a receiving apparatus, wherein the generating of the at least one modulation symbol comprises generating the at least one modulation symbol from the at least one code symbol to thereby reduce a number of complex modulation symbols generated from a plurality of code symbols.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 4, 2016
    Inventors: Seok-Ki Ahn, Woo-Myoung Park, Min Sagong, Chi-Woo Lim, Sung-Nam Hong
  • Publication number: 20150358194
    Abstract: Disclosed is a method and device for transmitting and receiving a signal by using modulation techniques in a wireless communication system. The method according to the present invention includes: selecting one of QAM and improved QAM according to at least one predefined criterion; encoding information bits to be transmitted according to a first encoding scheme and mapping encoded information bits to QAM symbols when the QAM is selected; encoding information bits to be transmitted according to a second encoding scheme and mapping encoded information bits to improved QAM symbols when the improved QAM is selected; and transmitting the QAM symbols or the improved QAM symbols through a given resource region.
    Type: Application
    Filed: December 23, 2013
    Publication date: December 10, 2015
    Inventors: Hyun-Kyu Yu, Won-Il Roh, Jeong-Ho Park, Min Sagong, Ji-Yun Seol, Chi-Woo Lim, Kyung-Whoon Cheun, Jae-Weon Cho, Sung-Nam Hong
  • Publication number: 20150349801
    Abstract: A method for decoding a non-binary Low Density Parity Check (LDPC) code by a decoding apparatus in a communication system is provided. The method includes selecting a predetermined number of symbol messages from among received symbol messages, performing a variable node update process on the selected symbol messages to generate variable node updated symbol messages, performing a check node update process on the variable node updated symbol messages, and performing a decoding operation based on the result of the variable node update process and the check node update process, wherein the performing of the check node update process includes generating an intermediate message for the variable node updated symbol messages using symbol messages which are selected based on reliability, and generating an output message of each edge between a variable node and a check node.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 3, 2015
    Inventors: Woo-Myoung PARK, Kyeong-Cheol YANG, Sang-Min KIM, Min SAGONG, Seok-Ki AHN, Chi-Woo LIM, Sung-Nam HONG
  • Publication number: 20150295592
    Abstract: Provided is a method for decoding a non-binary (NB) low density parity check (LDPC) code at a user equipment (UE) that implements at least one variable nodes that receive a received signal of a wireless channel and deliver an input message to a check node and the check node that checks the input message and outputs an output message. The method includes receiving at least one input messages, generating a temporary vector by using the at least one input messages, searching for an element having a dominant value by checking the temporary vector, generating a configuration set, which is a check target, by using the element having the dominant value, and generating the output message by performing comparison with respect to the generated configuration set.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 15, 2015
    Inventors: Seok-Ki Ahn, Kyeong-Cheol Yang, Sang-Min Kim, Woo-Myoung Park, Min Sagong, Chi-Woo Lim, Sung-Nam Hong
  • Publication number: 20150230118
    Abstract: A method of operating a base station in a wireless communication system supporting frequency and quadrature-amplitude modulation (FQAM) is provided. The method includes receiving channel quality information and non-Gaussian information for a data region from a mobile station, and determining a MCS level on the basis of the channel quality information and the non-Gaussian information.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Chi-Woo Lim, Min Sagong, Sung-Nam Hong, Hyun-Kyu Yu, Kyung-Whoon Cheun