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公开(公告)号：US11523328B2
公开(公告)日：2022-12-06
申请号：US16523684
申请日：2019-07-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lingchen Huang , Yunfei Qiao , Rong Li , Guijie Wang , Shengchen Dai , Zukang Shen
Abstract: A method and device are provided for encoding a master information block (MIB), where the MIB includes indication information, the indication information is used by a terminal device to determine a decoding mode for decoding first information, and the first information includes at least one of a system information block (SIB) 1 and system information (SI); and sending an encoded MIB to the terminal device. The terminal device can determine a correct decoding mode for the SIB and the SI according to the indication information before receiving the SIB and the SI, and then the terminal device can decode the SIB and the SI in the correct decoding mode after receiving the SIB and the SI. The terminal device can flexibly decode the SIB and the SI.
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公开(公告)号：US11432186B2
公开(公告)日：2022-08-30
申请号：US16748825
申请日：2020-01-22
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：US11025366B2
公开(公告)日：2021-06-01
申请号：US16749848
申请日：2020-01-22
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 cyclic redundancy check (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.
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公开(公告)号：US10931397B2
公开(公告)日：2021-02-23
申请号：US16695216
申请日：2019-11-26
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jian Wang , Lingchen Huang , Yunfei Qiao , Rong Li , Jun Wang , Yinggang Du , Yiqun Ge
IPC: H04L1/00
Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.
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公开(公告)号：US10666389B2
公开(公告)日：2020-05-26
申请号：US16423197
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD
Inventor： Chen Xu , Gongzheng Zhang , Rong Li , Huazi Zhang , Lingchen Huang
Abstract: Embodiments of the application provide a method and device for polar code rate matching in a wireless communication network. A device of the network obtains K information bits. The device generates a to-be-encoded sequence having a length N bits. The to-be-encoded sequence includes the K information bits and L frozen bits. The L frozen bits are placed in L bit positions of the to-be-encoded sequence. The L bit positions are determined according to a rate match manner which is either puncturing or shortening. The device polar encodes the to-be-encoded sequence to obtain the encoded sequence. The device interleaves the encoded sequence to obtain an interleaved sequence and then stores the interleaved sequence into a cyclic cache. The device sequentially outputs M bits of the interleaved sequence from the cyclic cache according to the rate matching manner.
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Patent Agency Ranking
公开(公告)号：US10536240B2
公开(公告)日：2020-01-14
申请号：US16146429
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingchen Huang , Shengchen Dai , Chen Xu , Yunfei Qiao , Rong Li
IPC: H04L1/00
Abstract: This application provides a channel encoding method and apparatus in wireless communications. The method includes: performing CRC encoding on A to-be-encoded information bits, to obtain a first bit sequence, where the first bit sequence includes L CRC bits and A information bits; performing an interleaving operation on the first bit sequence, to obtain a second bit sequence, where a first interleaving sequence used for the interleaving operation is obtained based on a system-supported maximum-length interleaving sequence with the length of Kmax+L, and Kmax is a maximum information bit quantity corresponding to the maximum-length interleaving sequence and a preset rule, and a length of the first interleaving sequence is equal to A+L. Therefore, during distributed CRC encoding, when an information bit quantity is less than the maximum information bit quantity, an interleaving sequence required for completing an interleaving process is obtained based on the system-supported maximum-length interleaving sequence.
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公开(公告)号：US10440606B2
公开(公告)日：2019-10-08
申请号：US16164833
申请日：2018-10-19
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：US11843461B2
公开(公告)日：2023-12-12
申请号：US17716402
申请日：2022-04-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Yinggang Du , Rong Li , Lingchen Huang , Ying Chen
IPC: H04L1/00
CPC classification number: H04L1/0057 , H04L1/0071
Abstract: 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 add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：US11569930B2
公开(公告)日：2023-01-31
申请号：US17143665
申请日：2021-01-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Wang , Lingchen Huang , Yunfei Qiao , Rong Li , Jun Wang , Yinggang Du , Yiqun Ge
IPC: H04L1/00
Abstract: This application provides a method for communicating a modulation and coding scheme (MCS). A terminal device obtains a modulation order, a code rate, or a spectral efficiency, determines an index of a reference MCS from a mapping table based on the obtained modulation order, code rate, or spectral efficiency, and reports the index of the reference MCS to a network device. The mapping table includes one or more mapping relationships between an MCS index and a modulation order, a code rate, or a spectral efficiency. The terminal device may process uplink or downlink data based on the determined MCS, thereby improving data transmission reliability.
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公开(公告)号：US11502780B2
公开(公告)日：2022-11-15
申请号：US17232769
申请日：2021-04-16
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 cyclic redundancy check (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.
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