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131.
公开(公告)号:US11411673B2
公开(公告)日:2022-08-09
申请号:US16958820
申请日:2019-01-11
Applicant: LG Electronics Inc.
Inventor: Kwangseok Noh , Bonghoe Kim
IPC: H04L1/00
Abstract: A transmission method or a transmission apparatus maps input information of K+n bits to a polar code, encodes the input information on the basis of the polar code, and transmits the encoded input information. The input information includes n parity check bits. n1 bits of the n parity check bits are mapped to least reliable bit positions of K+n bit positions of the polar code, and n−n1 parity check bits (where n−n1>0) are mapped to n−n1 bit positions having a minimum row weight among K+n−n1 bit positions excluding the n1 least reliable bit positions among the K+n bit positions.
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公开(公告)号:US11350379B2
公开(公告)日:2022-05-31
申请号:US16868130
申请日:2020-05-06
Applicant: LG ELECTRONICS INC.
Inventor: Hyunsoo Ko , Seokmin Shin , Bonghoe Kim , Yunjung Yi
Abstract: A method and apparatus for transmitting and receiving narrowband (NB) synchronization signals. A base station transmits an NB secondary synchronization signal (SSS) indicating N NB cell identities assigned for NB Internet of Things (IoT) operation, a specific sequence generated by multiplying a base sequence with a cover sequence in element units is used for the NB SSS, wherein the base sequence is generated through a second Zadoff-Chu sequence having a length corresponding to a largest prime number less than a length L in a frequency domain, and the specific sequence is divisionally mapped to and transmitted in a plurality of orthogonal frequency division multiplexing (OFDM) symbols in elements each having a length M.
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公开(公告)号:US11190210B2
公开(公告)日:2021-11-30
申请号:US16065735
申请日:2018-04-26
Applicant: LG Electronics Inc.
Inventor: Ilmu Byun , Jinwoo Kim , Kwangseok Noh , Jongwoong Shin , Bonghoe Kim
Abstract: A method for performing encoding on the basis of a parity check matrix of a LDPC code, according to one embodiment of the present invention, comprises the steps of: generating, by a terminal, a parity check matrix, wherein the parity check matrix corresponds to a characteristic matrix, each element of the characteristic matrix corresponds to a shift index value determined by a modulo operation between a corresponding element in a base matrix and a lifting value, and the base matrix is a 46×68 matrix; and performing, by the terminal, encoding of input data by using the parity check matrix, wherein the lifting value is associated with the length of the input data.
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公开(公告)号:US11146354B2
公开(公告)日:2021-10-12
申请号:US16476029
申请日:2018-01-05
Applicant: LG ELECTRONICS INC.
Inventor: Seunggye Hwang , Bonghoe Kim , Joonkui Ahn , Yunjung Yi , Kijun Kim
Abstract: A disclosure of the present specification provides a method for performing channel-coding of information on the basis of polar code. The method comprises the steps of: performing the channel-coding of first input information and second input information by using a generator matrix for the polar code; and transmitting first output information and second output information generated as a result of the channel-coding, wherein the first output information may be generated using only the first input information, and the second output information may be generated using both the first output information and the second input information.
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135.
公开(公告)号:US11139836B2
公开(公告)日:2021-10-05
申请号:US16637481
申请日:2018-08-08
Inventor: Kwangseok Noh , Bonghoe Kim , Song Nam Hong
Abstract: In a wireless communication system, a transmission device generates (K+J) bits by adding J cyclic redundancy check (CRC) bits to K information bits, and interleaves the (K+J) bits according to a seed value-based interleaving pattern. The transmission device encodes the bits interleaved according to the interleaving pattern, using a polar code. The seed value permutates the CRC bits, and a value previously determined according to K is used as the seed value.
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136.
公开(公告)号:US11108528B2
公开(公告)日:2021-08-31
申请号:US16654619
申请日:2019-10-16
Applicant: LG ELECTRONICS INC.
Inventor: Hyungtae Kim , Bonghoe Kim , Jonghyun Park , Kijun Kim
IPC: H04L5/00 , H04B7/0417 , H04B7/06 , H04L5/14
Abstract: Disclosed is a method by which a terminal reports channel quality information (CQI) to a base station in a multi-antenna-based wireless communication system. Particularly, the method comprises the steps of: receiving, through an upper layer, the reference signal configuration defined by P number of antenna ports; receiving, through M number of antenna ports, reference signals from the base station; grouping the P number of antenna ports into antenna port groups formed of the M number of antenna ports; calculating CQIs by using the reference signal corresponding to each of the antenna port groups on the basis of the assumption that predefined precoders are applied to the reference signals; and reporting, to the base station, N number of CQIs among the calculated CQIs.
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公开(公告)号:US11032805B2
公开(公告)日:2021-06-08
申请号:US16660767
申请日:2019-10-22
Applicant: LG ELECTRONICS INC.
Inventor: Suckchel Yang , Yunjung Yi , Joonkui Ahn , Bonghoe Kim
Abstract: The present invention relates to a wireless communication system. Particularly, the present invention relates to a method for receiving control information in a wireless communication system and a device therefor, the method comprising the steps of: receiving a PDCCH signal including uplink scheduling information; transmitting a PUSCH signal by using the uplink scheduling information; and receiving a PHICH signal including acknowledgement information on the PUSCH signal, wherein an RS for the PUSCH signal exists only in one slot per RB pair within an RB set in which the PUSCH signal is transmitted, and a resource for receiving the PHICH signal is determined by using an index of the slot in which the RS exists.
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公开(公告)号:US10966171B2
公开(公告)日:2021-03-30
申请号:US16198278
申请日:2018-11-21
Applicant: LG ELECTRONICS INC.
Inventor: Hyunsoo Ko , Seokmin Shin , Byounghoon Kim , Yunjung Yi , Bonghoe Kim
Abstract: This closure relates to narrowband communication supporting an Internet of Things (IoT) service in a next-generation wireless communication system and, more particularly, to a method and apparatus for transmitting and receiving narrowband synchronization signals. A base station transmits a narrowband secondary synchronization signal indicating a narrowband cell identity, a specific sequence generated by performing phase rotation with respect to a base sequence generated through a second Zadoff-Chu sequence having a predetermined length L in a frequency domain and multiplying the base sequence by a cover sequence in element units is used for the narrowband secondary synchronization signal, and a specific root index is selected from among M (M
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公开(公告)号:US10931311B2
公开(公告)日:2021-02-23
申请号:US16475625
申请日:2018-01-02
Applicant: LG Electronics Inc.
Inventor: Bonghoe Kim , Kwangseok Noh , Hyunsoo Ko , Ilmu Byun , Seunggye Hwang
Abstract: A method by which a base station transmits a physical broadcast channel (PBCH) can comprise the steps of: generating the same encoded data bit for each of two symbols of a predetermined subframe for PBCH transmission by using a polar code; and transmitting the generated same encoded data bit from each of the two symbols of the predetermined subframe through the PBCH.
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140.
公开(公告)号:US10912090B2
公开(公告)日:2021-02-02
申请号:US16092699
申请日:2017-04-07
Applicant: LG Electronics Inc.
Inventor: Ilmu Byun , Kijun Kim , Jiwon Kang , Bonghoe Kim , Suckchel Yang
Abstract: Provided are a method and a device for transmitting an uplink reference signal in a wireless communication system. More particularly, a terminal transmits downlink channel information and information about a downlink subband selected on the basis of the downlink channel information. And the terminal receives first resource allocation information indicating an uplink subband mapped to the downlink subband. And the terminal transmits an uplink reference signal by means of the uplink subband.
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