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公开(公告)号：US10014891B2
公开(公告)日：2018-07-03
申请号：US15512020
申请日：2015-09-16
发明人： Min Sagong , Ji-Yun Seol , Woo-Myong Park , Seok-Ki Ahn , Chi-Woo Lim , Sung-Nam Hong
IPC分类号： H04L5/00 , H04B1/10 , H04L27/34 , H04L27/10 , H04B17/336
CPC分类号： H04B1/1027 , H04B17/336 , H04L1/0002 , H04L1/0003 , H04L1/0009 , H04L1/20 , H04L5/0007 , H04L5/0014 , H04L5/0037 , H04L5/006 , H04L27/0008 , H04L27/10 , H04L27/106 , H04L27/34 , H04L27/3433 , H04L27/3488 , H04W52/146 , H04W52/241
摘要： 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.
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公开(公告)号：US20170288706A1
公开(公告)日：2017-10-05
申请号：US15505913
申请日：2015-07-06
发明人： Seok-Ki Ahn , Woo-Myoung Park , Min Sagong , Chi-Woo Lim , Sung-Nam Hong
CPC分类号： H03M13/31 , H03M13/1171 , H03M13/255 , H03M13/618 , H03M13/6362 , H03M13/6393 , H04L1/0013 , H04L1/0041 , H04L1/0069
摘要： 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.
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公开(公告)号：US20170201344A1
公开(公告)日：2017-07-13
申请号：US15405096
申请日：2017-01-12
发明人： Chi-Woo Lim , Jae-Yoel Kim , Woo-Myoung Park , Seok-Ki Ahn , Min Jang
CPC分类号： H04L1/0009 , H03M13/1102 , H03M13/6306 , H04L1/0025 , H04L1/0041 , H04L1/0045 , H04L1/1819 , H04L1/1874
摘要： Fifth Generation (5G) or pre-5G communication system for supporting a data transfer rate higher than that of a fourth Generation (4G) communication system, such as Long Term Evolution (LTE), and subsequent systems. The present disclosure provides a method for transmitting a signal by a transmission terminal in a communication system using a Low Density Parity Check (LDPC) code. The method include receiving a change request for changing a coding rate of the LDPC code, from a reception terminal; determining a first coding rate based on the change request; and transmitting information on the first coding rate in respond to the change request, to a reception terminal, wherein the change request for changing the coding rate comprises at least one of information indicating a coding rate determined by the reception terminal, or information indicating a state of the reception terminal.
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24.发明授权公开(公告)号：US11233604B2
公开(公告)日：2022-01-25
申请号：US17109476
申请日：2020-12-02
发明人： Kyung-Joong Kim , Seho Myung , Min Jang , Hong-Sil Jeong , Jae-Yoel Kim , Seok-Ki Ahn
摘要： A channel encoding method in a communication or broadcasting system is provided. The channel encoding method includes reading a first sequence corresponding to a parity check matrix, converting the first sequence to a second sequence by applying a certain rule to a block size corresponding to a parity check matrix and the first sequence, and encoding information bits based on the second sequence. The block size has at least two different integer values.
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公开(公告)号：US10993232B2
公开(公告)日：2021-04-27
申请号：US16110502
申请日：2018-08-23
发明人： Seok-Ki Ahn , Sungho Chae
摘要： 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). According to various embodiments of the present disclosure, a first apparatus in a wireless communication system that includes at least one processor and at least one transceiver operatively coupled with the at least one processor. The at least one processor is configured to obtain a channel matrix based on a signal received from a second apparatus, obtain an integer matrix for integer forcing (IF) based on the channel matrix, and generate channel information based on the integer matrix. The at least one transceiver is configured to transmit the generated channel information to the second apparatus.
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公开(公告)号：US10931400B2
公开(公告)日：2021-02-23
申请号：US15774963
申请日：2016-11-09
发明人： Min Jang , Woo-Myoung Park , Jae-Yoel Kim , Seok-Ki Ahn , Chi-Woo Lim
摘要： The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond the 4G communication system such as LTE. A decoding method using a polar code according to an embodiment of the present disclosure comprises the steps of: determining a first function for decoding input bits and a second function, which is independent from a log likelihood ratio (LLR) value of a previous input bit by the first function; and decoding the input bits in parallel using the first function and the second function. Also, the method comprises the steps of: determining an internal frozen bit using at least one input frozen bit which has a predetermined value of a predetermined position from among the input bits; and determining LLR values for layer bits sequentially from the higher layers of N layers.
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27.发明授权公开(公告)号：US10574389B2
公开(公告)日：2020-02-25
申请号：US15361283
申请日：2016-11-25
发明人： Kyung-Joong Kim , Seho Myung , Min Jang , Hong-Sil Jeong , Jae-Yoel Kim , Seok-Ki Ahn
摘要： A channel encoding method in a communication or broadcasting system is provided. The channel encoding method includes reading a first sequence corresponding to a parity check matrix, converting the first sequence to a second sequence by applying a certain rule to a block size corresponding to a parity check matrix and the first sequence, and encoding information bits based on the second sequence. The block size has at least two different integer values.
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公开(公告)号：US10461890B2
公开(公告)日：2019-10-29
申请号：US15891265
申请日：2018-02-07
发明人： Seok-Ki Ahn , Kyeongcheol Yang , Daeyeol Yang , Sunghye Cho
摘要： The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates Beyond 4th-Generation (4G) communication systems such as Long Term Evolution (LTE). A method for operating a receiver in a wireless communication system may include: receiving a signal from a transmitter; performing Integer Forcing (IF) equalization on the received signal; determining a log LikeLihood Ratio (LLR) value of each bit by using a posteriori probability of each bit for the signal determined based on an equalization matrix and a likelihood value for the signal; and decoding the signal by using the LLR value.
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公开(公告)号：US10454618B2
公开(公告)日：2019-10-22
申请号：US15400304
申请日：2017-01-06
发明人： Min Jang , Seok-Ki Ahn , Chi-Woo Lim , Jae-Yoel Kim , Woo-Myoung Park
摘要： 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 and apparatus for transmitting a signal in a transmitting apparatus in a communication system supporting a rate compatible-low density parity check (RC-LDPC) code are provided. The method includes encoding information bits based on a first parity check matrix and a first code rate to generate a codeword, processing the codeword to generate a transmission signal, and transmitting the transmission signal.
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公开(公告)号：US10454535B2
公开(公告)日：2019-10-22
申请号：US15891146
申请日：2018-02-07
发明人： Seok-Ki Ahn , Sungho Chae , Kwang Taik Kim , Young-Han Kim
IPC分类号： H04B7/0413 , H04B7/08 , H04L25/03
摘要： 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). According to various embodiments, in a multiple-input multiple-output wireless communication system, a receiving apparatus may include at least one processor and at least one transceiver. The at least one transceiver may be configured to receive a signal including a plurality of symbols, perform Successive Interference Cancellation (SIC) related to a first symbol of the plurality of symbols on the received signal to obtain a processed signal, determine symbol-sums by applying an equalization matrix for integer forcing to the processed signal, and determine information words corresponding to the plurality of symbols based on the symbol-sums.
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