-
公开(公告)号：US10425190B2
公开(公告)日：2019-09-24
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
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.
-
公开(公告)号：US20190260503A1
公开(公告)日：2019-08-22
申请号：US16398282
申请日：2019-04-30
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Huazi Zhang , Rong Li , Yue Zhou , Hejia Luo , Gongzheng Zhang , Yunfei Qiao
IPC: H04L1/00
Abstract: Embodiments of this application provide a method for transmitting encoded information. A communication device obtains K bits of information, and generates a to-be-encoded sequence u1N, wherein N is a length of the sequence. The device encodes the sequence u1N in an encoding process, to obtain an output sequence, and transmits the output sequence. In the sequence u1N, each of the N bits corresponds to a subchannel, and each subchannel has a reliability. The K information bits, a quantity J of first-type auxiliary bits, and a quantity J′ of second-type auxiliary bits are placed in K′=K+J+J′ bit positions of the sequence u1N according to reliabilities of the subchannels. Since the positions of the information bits and the auxiliary bits are pre-determined and not affected by subsequent encoding and rate-matching, overheads of real-time reliability calculation are effectively reduced, time is saved, and delay is reduced.
-
公开(公告)号：US20190215099A1
公开(公告)日：2019-07-11
申请号：US16354194
申请日：2019-03-15
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Shengchen Dai , Huazi Zhang , Rong Li , Yunfei Qiao , Yue Zhou
IPC: H04L1/00
CPC classification number: H04L1/0041 , H03M13/13 , H04L1/0057 , H04L1/0061 , H04L1/0068
Abstract: Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device obtains K information bits and a code length M. The code length M is a length of an output sequence resulting from processing the information bits. The communication device generates an N-bit bit sequence that includes the K information bits and one or more parity check bits, encodes the bit sequence using a polar encoding formula to obtain an N-bit encoded sequence, rate matches the encoded sequence to obtain the output sequence, and outputs the output sequence. When M−K>192, in the bit sequence, one of the parity check bits is placed in a bit position that is determined according to reliabilities of the bit positions in the bit sequence for placing the K information bits and the one or more parity check bits.
-
公开(公告)号：US20190207711A1
公开(公告)日：2019-07-04
申请号：US16295151
申请日：2019-03-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rong Li , Gongzheng Zhang , Ying Chen , Xiaocheng Liu , Jun Wang
CPC classification number: H04L1/0058 , H03M13/13 , H03M13/618 , H03M13/635 , H03M13/6588 , H04L1/00
Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
-
公开(公告)号：US10341044B2
公开(公告)日：2019-07-02
申请号：US16223121
申请日：2018-12-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng Zhang , Hejia Luo , Rong Li , Ying Chen , Yunfei Qiao
IPC: H04L1/00
Abstract: Embodiments of the application provide a method for encoding data in a wireless communication network. A communication device obtains K data bits and a target code length M. The device determines a mother code length N1. The device encodes the K data bits to obtain an encoded bit sequence of code langth N1. The mother code length N1 is determined according to a minimum value of values Na, Nmax and N. The values Na, Nmax and N satisfy the following conditions: (1) the value Na satisfies with: a rate R1 is less than or equal to a preset rate, wherein the rate R1 is determined according to the value K and the value Na; (2) the value Nmax is a preset maximum mother code length, and Nmax is an integer power of 2; and (3) the value N satisfies with M≤N*(1+δ), and δ is a preset constant.
-
Patent Agency Ranking
公开(公告)号：US20190123853A1
公开(公告)日：2019-04-25
申请号：US16223121
申请日：2018-12-18
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Gongzheng Zhang , Hejia Luo , Rong Li , Ying Chen , Yunfei Qiao
IPC: H04L1/00
CPC classification number: H04L1/0013 , H03M13/13 , H03M13/6356 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0068
Abstract: Embodiments of the application provide a method for encoding data in a wireless communication network. A communication device obtains K data bits and a target code length M. The device determines a mother code length N1. The device encodes the K data bits to obtain an encoded bit sequence of code langth N1. The mother code length N1 is determined according to a minimum value of values Na, Nmax and N. The values Na, Nmax and N satisfy the following conditions: (1) the value Na satisfies with: a rate R1 is less than or equal to a preset rate, wherein the rate R1 is determined according to the value K and the value Na; (2) the value Nmax is a preset maximum mother code length, and Nmax is an integer power of 2; and (3) the value N satisfies with M≤N*(1+δ), and δ is a preset constant.
-
公开(公告)号：US20190068316A1
公开(公告)日：2019-02-28
申请号：US16163169
申请日：2018-10-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Jiajie Tong , Rong Li , Jun Wang , Wen Tong , Yiqun Ge , Xiaocheng Liu , Gongzheng Zhang , Jian Wang , Nan Cheng , Qifan Zhang
Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.
-
公开(公告)号：US20190053095A1
公开(公告)日：2019-02-14
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
CPC classification number: H04W28/04 , H04L1/0013 , H04L1/0057 , H04L1/0068 , H04L1/0071
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.
-
公开(公告)号：US20180076929A1
公开(公告)日：2018-03-15
申请号：US15699976
申请日：2017-09-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huazi Zhang , Jiajie Tong , Rong Li , Jun Wang , Wen Tong , Yiqun Ge , Xiaocheng Liu , Gongzheng Zhang , Jian Wang , Nan Cheng , Qifan Zhang
CPC classification number: H04L1/0009 , H03M13/11 , H03M13/13 , H03M13/611 , H03M13/616 , H03M13/6362 , H04L1/0041 , H04L1/0043 , H04L1/0061 , H04L1/0063 , H04L1/0065
Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of “ones” in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of “ones” in the binary representation of the sub-channel index (further described below). In one embodiment, candidate sub-channels that have certain row weight values are reserved for parity bit(s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N−K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
-
公开(公告)号：US12302404B2
公开(公告)日：2025-05-13
申请号：US17707299
申请日：2022-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu Wang , Hejia Luo , Chenlei Xu , Jianwei Zhou , Rong Li
IPC: H04W74/0833 , H04L43/0864 , H04W74/00 , H04W74/08 , H04W72/23
Abstract: This disclosure provides data processing methods. One example including a network device obtains target information that includes a transmission delay difference corresponding to a target beam or a target cell; determines a first preamble format based on the transmission delay difference, and then determines first configuration information used to indicate the first preamble format and a first set of random access occasions included in a random access period, where an interval between random access times included in the first set of random access occasions is greater than or equal to a preamble length corresponding to the first preamble format; and generates a corresponding first configuration index based on the first configuration information. The preamble formats required for different beams or cells can be determined based on transmission delay differences corresponding to the different beams or cells, and then configuration information of a random access occasion is further determined.
-
-
-
-
-
-
-
-
-
Search Results
315
records
(took 0.043 seconds)
