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公开(公告)号：US20190394674A1
公开(公告)日：2019-12-26
申请号：US16561027
申请日：2019-09-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Yourui HuangFu , Lingchen Huang , Ying Chen , Yunfei Qiao , Rong Li
Abstract: Embodiments of the application provide a method for transmitting data in a wireless communication network. A device of the network receives a bit sequence of K information bits. The device polar codes the bit sequence to obtain a first encoded sequence, wherein a length of the first encoded sequence is N, and N is greater than or equal to K. The device block interleaves the first encoded sequence to obtain an interleaved bit sequence. The device determines a transmission code rate R. When the transmission code rate R is less than the code rate threshold, the device outputs a second bit sequence. The length of the second bit sequence is M, M is smaller than N. The second bit sequence is punctured from the interleaved bit sequence by removing (N−M) bits from beginning of the interleaved bit sequence.
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公开(公告)号：US10511329B2
公开(公告)日：2019-12-17
申请号：US16236002
申请日：2018-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yourui HuangFu , Jian Wang , Rong Li , Yunfei Qiao , Jun Wang
Abstract: This application relates to the field of communications technologies, and discloses example polar coding methods and apparatus, so as to improve accuracy of a reliability order of polarized channels. One example method includes determining a sequence used to code to-be-coded bits, and performing polar coding on the to-be-coded bits by using the sequence to obtain coded bits, where the sequence is used to represent a reliability order of N polarized channels, where N is a mother code length of a polar code, and wherein N is a positive integer power of 2.
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公开(公告)号：US20190372704A1
公开(公告)日：2019-12-05
申请号：US16540086
申请日：2019-08-14
Applicant: Huawei Technologies Co.,Ltd.
Inventor： Jian Wang , Huangping Jin , Shengchen Dai , Rong Li , Yinggang Du , Jun Wang , Yiqun Ge
Abstract: The application provides manner for communicating channel state information (CSI) in a communication network. A preset length is used for equalizing lengths of CSI to be reported. The preset length is determined based on a quantity of CSI-reference signal (RS) ports. A communication device determines whether a total length of one or more indication information items to be included in the CSI is less than the preset length. If the total length of the one or more indication information items to be included in the CSI is less than the preset length, the communication device adds one or more padding bits, to obtain a CSI bit sequence including the one or more indication information items and the one or more padding bits. A total length of the CSI bit sequence is consistent with the preset length. The communication device then outputs the CSI bit sequence.
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公开(公告)号：US10439759B2
公开(公告)日：2019-10-08
申请号：US16239910
申请日：2019-01-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Gongzheng Zhang , Lingchen Huang , Rong Li , Huazi Zhang , Hejia Luo
IPC: H04L1/00
Abstract: Embodiments of this application provides a communication method in a wireless communication network. A communication device obtains an information bit sequence and obtain a first sequence, wherein the first sequence comprises sequence numbers of N channels ordered in ascending order of channel reliability, wherein N is 1024 and wherein a channel whose sequence number is 0, a channel whose sequence number is 1, and a channel whose sequence number is 2 are ordered in ascending order of channel reliability; then polar encode the information bits based on the first sequence to obtain an encoded bit sequence and output the encoded bit sequence.
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公开(公告)号：US20190173491A1
公开(公告)日：2019-06-06
申请号：US16272937
申请日：2019-02-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Ying Chen , Rong Li , Chaolong Zhang , Yourui Huangfu , Huazi Zhang
Abstract: A rate matching method for a polar code is provided, to improve performance. The method includes: encoding, based on an N*N encoding matrix of a polar code, a sequence including N first bits, to generate a mother code including N second bits, where the N first bits are in a one-to-one correspondence with N rows in the encoding matrix in sequence, and the N second bits are in a one-to-one correspondence with N columns in the encoding matrix in sequence; determining N−M to-be-punctured second bits from the N second bits, where at least one first bit in N−M first bits participating in encoding of the N−M second bits belongs to the first M first bits in the N first bits, and the N−M first bits are fixed bits; and puncturing the N−M second bits, to obtain a target polar code including M second bits.
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Patent Agency Ranking
公开(公告)号：US20190081733A1
公开(公告)日：2019-03-14
申请号：US16118740
申请日：2018-08-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen Huang , Shengchen Dai , Chen Xu , Yunfei Qiao , Rong Li
Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. 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=11; 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：US20190081732A1
公开(公告)日：2019-03-14
申请号：US16118685
申请日：2018-08-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shengchen Dai , Lingchen Huang , Gongzheng Zhang , Yunfei Qiao , Rong Li
IPC: H04L1/00
CPC classification number: H04L1/0058 , H03M13/00 , H04L1/0041 , H04L1/0057 , H04L1/0061
Abstract: This application provides an encoding method and apparatus in wireless communications between a network device and a terminal. 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：US20190044655A1
公开(公告)日：2019-02-07
申请号：US16145850
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jun Wang , Gongzheng Zhang , Huazi Zhang , Chen Xu , Lingchen Huang , Shengchen Dai , Hejia Luo , Yunfei Qiao , Rong Li , Jian Wang , Ying Chen , NIKITA POLIANSKII , MIKHAIL KAMENEV , Zukang Shen , Yourui HuangFu , Yinggang Du
IPC: H04L1/00
Abstract: This application relates to the field of wireless communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K≤N; selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability; and placing the to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the to-be-encoded bits.
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109.发明申请公开(公告)号：US20180115393A1
公开(公告)日：2018-04-26
申请号：US15784836
申请日：2017-10-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Gongzheng Zhang , Huazi Zhang , Rong Li , Jun Wang , Yiqun Ge , Wen Tong
Abstract: Aspects of this disclosure provide a technique for implementing polar encoding with incremental redundancy HARQ re-transmission. In particular, a transmitter may encode a message using different polar codes to obtain a first codeword and a second codeword that is twice the length of the first codeword, and transmit the first codeword as an original transmission, and the second half of the second codeword as a re-transmission without transmitting the first half of the second codeword. Information bits that are common to both the first codeword and the second half of the second codeword may be mapped to more-reliable bit-locations in the second half of the second codeword. Decoded bit values for the common information in the original transmission and retransmission may be compared by the receiver to perform a parity check.
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公开(公告)号：US20180019793A1
公开(公告)日：2018-01-18
申请号：US15716260
申请日：2017-09-26
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0456 , H04B7/0632 , H04L1/0026 , H04L5/0048 , H04L5/0057 , H04W72/0466 , H04W72/082 , H04W88/02
Abstract: The present invention relates to the field of communications network technologies, and discloses a data processing method and apparatus. In embodiments of the present invention, stream channel quality information is obtained, and then port mapping of a to-be-transmitted data stream is determined according to the stream channel quality information. The port mapping is used to make channel quality of data streams distributed in a same code word satisfy the following: a sum of fluctuation values that is used to represent channel quality of data streams in all code words is less than a sum of fluctuation values that is used to represent channel quality of data streams in all code words under original port mapping.
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