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公开(公告)号：EP3910830A1
公开(公告)日：2021-11-17
申请号：EP21163022.3
申请日：2018-05-04
发明人： HUANG, Lingchen , DAI, Shengchen , XU, Chen , QIAO, Yunfei , LI, Rong
摘要： This application provides a decoding method and apparatus. The method includes performing polar decoding based on a CRC polynomial to obtain a polar-decoded bit sequence, wherein the polar-decoded bit sequence comprises 11 CRC bits. Based on an improved CRC polynomial, a decoding satisfying an FAR requirement is implemented.
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公开(公告)号：EP3457607A1
公开(公告)日：2019-03-20
申请号：EP18771407.6
申请日：2018-03-22
发明人： XU, Chen , ZHANG, Gongzheng , LI, Rong , ZHANG, Huazi , HUANG, Lingchen
IPC分类号： H04L1/00
摘要： Embodiments of the application provide a method and device for polar code rate matching. The method includes: polar encoding according to a mother code length N and a rate matching manner, to obtain encoded bits after the polar encoding, where the rate matching manner is a first rate matching manner or a second rate matching manner, and N is a positive integer; storing, into a cyclic cache according to a bit storage order corresponding to the rate matching manner, the encoded bits, wherein the first rate matching manner and the second rate matching manner are corresponding to a same bit storage order; and reading, from the cyclic cache according to a bit reading order corresponding to the rate matching manner, an output sequence obtained after rate matching, wherein the first rate matching manner and the second rate matching manner are corresponding to different bit reading orders. According to the embodiments, hardware complexity and an area occupied by hardware can be reduced.
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公开(公告)号：EP3422620A1
公开(公告)日：2019-01-02
申请号：EP18746067.0
申请日：2018-03-23
发明人： HUANG, Lingchen , ZHANG, Gongzheng , XU, Chen , ZHANG, Chaolong , WANG, Jun
IPC分类号： H04L1/00
摘要： Embodiments of this application provide a method and an apparatus for constructing a sequence of polar codes. The method includes: reading a tectonic sequence P' whose length is the same as an encoding code length of a to-be-constructed sequence of polar codes from a tectonic sequence P , where the tectonic sequence P is generated based on a reliability ranking sequence Q and a rate matching rule; demapping the tectonic sequence P ' to a reliability ranking sequence Q ' based on rate matching; and constructing the sequence of polar codes based on the reliability ranking sequence Q '. According to this application that is implemented, a rate matching process and a process of constructing a sequence of polar codes are combined, thereby effectively improving efficiency in constructing a sequence of polar codes, and better adapting to the rate matching process.
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公开(公告)号：EP3952159A1
公开(公告)日：2022-02-09
申请号：EP20799365.0
申请日：2020-04-01
发明人： WANG, Xianbin , ZHANG, Huazi , LI, Rong , HUANG, Lingchen , DAI, Shengchen , TONG, Jiajie
IPC分类号： H04L1/00
摘要： Embodiments of this application disclose an encoding method and a communications device. The method includes: obtaining a to-be-encoded information bit sequence; encoding the to-be-encoded information bit sequence based on a binary vector P 1 of a first code, to obtain an encoded bit sequence, where P 1 is determined based on a binary vector P 2 of a second code and a binary vector P 3 of a third code, P 1 indicates an information bit and a frozen bit of the first code, P 2 indicates an information bit and a frozen bit of the second code, P 3 indicates an information bit and a frozen bit of the third code, a code length of the first code is n 1 , a quantity of information bits of the first code is k 1 , a code length of the second code is n 2 , a quantity of information bits of the second code is k 2 , a code length of the third code is n 3 , a quantity of information bits of the third code is k 3 , n 1 = n 2 ∗ n 3 , and k 1 = k 2 ∗ k 3 ; and outputting the encoded bit sequence. When encoding is performed in the encoding manner described in the embodiments of this application, parallel decoding can be performed in a decoding process. This helps reduce a decoding delay.
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公开(公告)号：EP3745622A1
公开(公告)日：2020-12-02
申请号：EP20165767.3
申请日：2018-05-04
发明人： DAI, Shengchen , HUANG, Lingchen , ZHANG, Gongzheng , QIAO, Yunfei , LI, Rong
摘要： This application provides an encoding method and apparatus. The method includes: performing CRC encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits, L =6; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.
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公开(公告)号：EP3598674A1
公开(公告)日：2020-01-22
申请号：EP18776231.5
申请日：2018-03-24
发明人： ZHANG, Gongzheng , HUANGFU, Yourui , HUANG, Lingchen , CHEN, Ying , QIAO, Yunfei , LI, Rong
IPC分类号： H04L1/00
摘要： This application discloses a rate matching method, and the method includes: determining, by a network device, a transmission code rate R, where R=K/M, K is a length of an information bit, M is a length of target code length, and K and M are positive integers; determining, by the network device when the transmission code rate R is greater than or equal to a first code rate threshold, to use a shortening mode for a bit sequence whose length is N, or determining, by the network device when the transmission code rate R is less than a first code rate threshold, to use a puncturing mode for a bit sequence whose length is N, where N is a length of mother code, and N is a positive integer; and performing, by the network device, polar coding on the bit sequence whose length is N, to obtain a first encoded sequence whose length is N, and shortening or puncturing, by the network device, the first encoded sequence, to obtain a second encoded sequence whose length is M. This application further provides a rate matching device corresponding to the method. According to the foregoing method and device, the puncture puncturing or shortening mode can be flexibly selected, and a performance penalty loss caused in a puncturing or shortening process is avoided.
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公开(公告)号：EP3474473A1
公开(公告)日：2019-04-24
申请号：EP18752075.4
申请日：2018-05-04
发明人： DAI, Shengchen , HUANG, Lingchen , ZHANG, Gongzheng , QIAO, Yunfei , LI, Rong
摘要： This application provides an encoding method and apparatus. The method includes: performing CRC encoding on A to-be-encoded information bits based on a CRC polynomial, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits; and performing polar encoding on the first bit sequence. Based on an improved CRC polynomial, encoding satisfying an FAR requirement is implemented.
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公开(公告)号：EP4336759A3
公开(公告)日：2024-05-29
申请号：EP23205319.9
申请日：2018-09-18
发明人： LUO, Hejia , DU, Yinggang , LI, Rong , HUANG, Lingchen , CHEN, Ying
CPC分类号： H04L1/0041 , H04L1/0061 , H04L1/0072 , H03M13/13 , H03M13/27
摘要： Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices then add d a first CRC bits on the first interleaved sequence to obtain a second bit sequence, then interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and finally polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：EP3637731A1
公开(公告)日：2020-04-15
申请号：EP18823331.6
申请日：2018-06-26
发明人： HUANG, Lingchen , LI, Rong , ZHANG, Huazi , XU, Chen , DAI, Shengchen , ZHANG, Gongzheng , QIAO, Yunfei
IPC分类号： H04L29/08
摘要： A polar code encoding method and apparatus are disclosed to provide a new check encoding scheme. The method includes: separately performing check encoding on the at least two to-be-checked first bit sequences to obtain at least two check bit sequences, where a union set of the at least two to-be-checked first bit sequences includes the K information bits, and K is a positive integer; interleaving the K information bits and the at least two check bit sequences, or interleaving a first part of information bit sequence and the first check bit sequence to obtain an interleaved third bit sequence, where the second check bit sequence, the third check bit sequence, and a second part of information bit sequence in the sequence of all information bits except the first part of information bit sequence form a second bit sequence; and performing polar encoding on the second bit sequence.
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公开(公告)号：EP3637648A1
公开(公告)日：2020-04-15
申请号：EP18802674.4
申请日：2018-05-15
发明人： DAI, Shengchen , ZHANG, Huazi , LI, Rong , ZHANG, Gongzheng , HUANG, Lingchen
IPC分类号： H04L1/00
摘要： A data transmission method, a chip, a transceiver, and a computer readable storage medium are provided. The method includes: obtaining K information bits; determining to-be-encoded bits, where the to-be-encoded bits include (K+P) bits, the (K+P) bits include the K information bits and P check bits, the K information bits correspond to K polarization channels, the P check bits include T first-type check bits, all the T first-type check bits are PC bits, and reliability of a polarization channel corresponding to each of the T first-type check bits is greater than a minimum value of reliability of the K polarization channels; and performing polar coding on the to-be-encoded bits to obtain encoded bits, where the (K+P) bits are in a one-to-one correspondence with (K+P) rows in a generator matrix of the encoded bits, a maximum row weight corresponding to the T first-type check bits is less than or equal to W 2 , and W 2 represents a second minimum value in row weights of the (K+P) rows.
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