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公开(公告)号：US10476528B2
公开(公告)日：2019-11-12
申请号：US15509489
申请日：2015-03-30
Applicant: ZTE CORPORATION
Inventor： Liguang Li , Jun Xu , Jin Xu , Zhifeng Yuan
Abstract: A packet processing method and device are disclosed. The method includes: performing code block segmentation on a source packet to obtain a sub-packets; performing error correction encoding on each sub-packet respectively, or performing error correction encoding after respectively adding a CRC sequence to each sub-packet to obtain a error correction encoding sub-packets; performing network encoding on the a error correction encoding sub-packet to obtain b check sub-packets; and performing bit selection operation on the a error correction encoding sub-packets and the b check sub-packets respectively to collectively form an encoded packet; herein a and b are integers greater than 0.
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公开(公告)号：US10084569B2
公开(公告)日：2018-09-25
申请号：US15320757
申请日：2014-08-21
Applicant: ZTE CORPORATION
Inventor： Jun Xu , Liguang Li , Jin Xu , Kaibo Tian
CPC classification number: H04L1/0041 , H04L1/00 , H04L1/0058 , H04L1/0061 , H04L1/0065 , H04L1/1812 , H04L1/1819
Abstract: The method includes code block segmentation is performed on a physical layer source data packet, to be sent, having a length of Ks bits, and channel coding is performed on each code block obtained by segmentation, to obtain Cs error-corrected and coded source data sub-packets having lengths of Kc bits; packet coding is performed on the error-corrected and coded source data sub-packets, to obtain Cp check data sub-packets; Ki codeword bits are selected from the ith sub-packet in Cs source data sub-packets, Kj codeword bits are selected from the jth sub-packet in the Cp check data sub-packets, all the selected bits are cascaded together to form a sequence having a length of formula (I), i=0, 1, . . . , Cs−1, j=0, 1, . . . , Cp−1, and the sequence is sent, herein Ks, Cs and Kc are integers greater than 1, and Cp, Ki and Kj are integers greater than or equal to 0.
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公开(公告)号：US11777528B2
公开(公告)日：2023-10-03
申请号：US17584244
申请日：2022-01-25
Applicant: ZTE CORPORATION
Inventor： Liguang Li , Jun Xu , Jin Xu
CPC classification number: H03M13/255 , H03M13/1185 , H03M13/658 , H03M13/6522
Abstract: A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: determining a redundancy version and a new data indicator indicated by control information; determining a base graph of a low density parity check code based on which of a plurality of predefined conditions the redundancy version, and/or the new data indicator satisfy; and sending a signal comprising information bits that are encoded based on the determined base graph of the low density parity check code.
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公开(公告)号：US11637568B2
公开(公告)日：2023-04-25
申请号：US17486652
申请日：2021-09-27
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: A quasi-cyclic LDPC coding and decoding method and apparatus, and an LDPC coder and decoder. The method includes: determining from a mother basis matrix set a basis matrix used for low density parity check (LDPC) coding (S202), wherein the basis matrix used for LDPC coding includes a first-type element and a second-type element, the first-type element corresponds to an all-zero square matrix, the second-type element corresponds to a matrix obtained by means of a cyclic shift of a unit matrix according to a value of the second-type element, and dimensions of the all-zero square matrix and the unit matrix are equal; and performing LDPC coding on an information sequence to be coded according to the basis matrix used for LDPC coding, and/or performing LDPC decoding on a data sequence to be decoded according to the basis matrix used for LDPC coding (S204).
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公开(公告)号：US11483091B2
公开(公告)日：2022-10-25
申请号：US16989761
申请日：2020-08-10
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Zhisong Zuo , Hao Wu , Yu Xin , Luanjian Bian , Jin Xu
Abstract: Provided are a data communication processing method and device. The method includes: acquiring a modulation order and a target code rate; calculating an intermediate number Ninfo of information bits at least according to a total number of resource elements, the modulation order and the target code rate; quantizing the intermediate number Ninfo of the information bits to obtain the quantized intermediate number N′info; determining a transport block size (TBS) according to the quantized intermediate number N′info.
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Patent Agency Ranking
公开(公告)号：US11368169B2
公开(公告)日：2022-06-21
申请号：US16651303
申请日：2017-05-24
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding.
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公开(公告)号：US11316534B2
公开(公告)日：2022-04-26
申请号：US16325030
申请日：2017-08-01
Applicant: ZTE CORPORATION
Inventor： Jin Xu , Jun Xu , Liguang Li
Abstract: Provided are an encoding method and device, a decoding method and device, and a storage medium. The encoding method comprises: encoding an initial to-be-encoded bit sequence with a low density parity check code LDPC having a code rate R1, to obtain an encoded first bit sequence, where 0≤R1≤1; linearly combining at least two bit sequence segments in the first bit sequence to obtain a second bit sequence; and cascading the first bit sequence and the second bit sequence to obtain a target bit sequence having a code rate R2, where 0≤R2≤R1≤1.
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公开(公告)号：US11233531B2
公开(公告)日：2022-01-25
申请号：US16790046
申请日：2020-02-13
Applicant: ZTE CORPORATION
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: Methods and Apparatus for processing data encoded by low density parity check (LDPC) in a communication system are disclosed herein. In one embodiment, a method performed by a first node is disclosed. The method comprises: encoding an information bit sequence based on an LDPC coding scheme to obtain an encoded bit sequence; generating a master bit sequence based on the encoded bit sequence; selecting a subset of the master bit sequence according to a rate matching rule to obtain a rate matched bit sequence; interleaving the rate matched bit sequence according to a predetermined index sequence to obtain a to-be-transmitted bit sequence; and transmitting the to-be-transmitted bit sequence to a second node.
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公开(公告)号：US20210013901A1
公开(公告)日：2021-01-14
申请号：US16651303
申请日：2017-05-24
Applicant: ZTE Corporation
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding.
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公开(公告)号：US20200212937A1
公开(公告)日：2020-07-02
申请号：US16790046
申请日：2020-02-13
Applicant: ZTE CORPORATION
Inventor： Liguang Li , Jun Xu , Jin Xu
Abstract: Methods and Apparatus for processing data encoded by low density parity check (LDPC) in a communication system are disclosed herein. In one embodiment, a method performed by a first node is disclosed. The method comprises: encoding an information bit sequence based on an LDPC coding scheme to obtain an encoded bit sequence; generating a master bit sequence based on the encoded bit sequence; selecting a subset of the master bit sequence according to a rate matching rule to obtain a rate matched bit sequence; interleaving the rate matched bit sequence according to a predetermined index sequence to obtain a to-be-transmitted bit sequence; and transmitting the to-be-transmitted bit sequence to a second node.
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