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1. 发明授权

US10917112B2 Apparatus and methods for error detection coding 有权
公开(公告)号：US10917112B2
公开(公告)日：2021-02-09
申请号：US16511180
申请日：2019-07-15
申请人： Yiqun Ge , Ran Zhang , Nan Cheng , Wuxian Shi
发明人： Yiqun Ge , Ran Zhang , Nan Cheng , Wuxian Shi
IPC分类号： H03M13/09 , H03M13/13 , H04L1/00 , G06F11/14
摘要： A first error-detecting code (EDC) is computed based on a first segment of a block of information that is to be encoded, and a second EDC is computed based on at least a second segment of the block of information. The first EDC is masked with a first masking segment and the second EDC with a second masking segment to generate a first masked EDC and a second masked EDC. The first masking segment and the second masking segment are associated with a target receiver of the block of information. A codeword is generated based on a code and an input vector that includes the first segment, the first masked EDC, the second segment, and the second masked EDC. This type of coding could be useful to support early termination of blind detection at a decoder, for example.

2. 发明授权

US10361717B2 Apparatus and methods for error detection coding 有权
公开(公告)号：US10361717B2
公开(公告)日：2019-07-23
申请号：US15611201
申请日：2017-06-01
申请人： Yiqun Ge , Ran Zhang , Nan Cheng , Wuxian Shi
发明人： Yiqun Ge , Ran Zhang , Nan Cheng , Wuxian Shi
IPC分类号： H03M13/09 , G06F11/14 , H04L1/00 , H03M13/13
摘要： A first error-detecting code (EDC) is computed based on a first segment of a block of information that is to be encoded, and a second EDC is computed based on at least a second segment of the block of information. The first EDC is masked with a first masking segment and the second EDC with a second masking segment to generate a first masked EDC and a second masked EDC. The first masking segment and the second masking segment are associated with a target receiver of the block of information. A codeword is generated based on a code and an input vector that includes the first segment, the first masked EDC, the second segment, and the second masked EDC. This type of coding could be useful to support early termination of blind detection at a decoder, for example.

3. 发明授权

US10608786B2 Apparatus and methods of specifying ordered sequences of coding sub-channels 有权
公开(公告)号：US10608786B2
公开(公告)日：2020-03-31
申请号：US15889544
申请日：2018-02-06
申请人： Yiqun Ge , Wuxian Shi , Ran Zhang , Nan Cheng
发明人： Yiqun Ge , Wuxian Shi , Ran Zhang , Nan Cheng
IPC分类号： H04L1/00 , H03M13/13 , H03M13/03
摘要： An ordered number sequence may be determined based on an ordered sub-channel sequence specifying an order of N sub-channels that are defined by a code and that have associated reliabilities for input bits at N input bit positions. The ordered number sequence represents the ordered sub-channel sequence as a sequence of fewer than N numbers. The numbers in the ordered number sequence indicate the sub-channels, by representing numbers of the sub-channels for example, from different subsets of the N sub-channels, that appear in the order specified by the ordered sub-channel sequence. Using ordered number sequences, longer ordered sub-channel sequences could be constructed from smaller ordered sub-channel sequences, and/or sub-channels that to be selected from a longer ordered sub-channel sequence could be divided into two or more parts, with each part to be selected from shorter ordered sub-channel sequences.

4. 发明授权

US10579452B2 Systems and methods for rate matching via a heterogeneous kernel when using general polar codes 有权
公开(公告)号：US10579452B2
公开(公告)日：2020-03-03
申请号：US15607593
申请日：2017-05-29
申请人： Wuxian Shi , Yiqun Ge , Nan Cheng , Ran Zhang
发明人： Wuxian Shi , Yiqun Ge , Nan Cheng , Ran Zhang
IPC分类号： G06F11/30 , G06F11/07 , G06F11/14 , H04L1/00
摘要： Systems and methods are disclosed for performing rate matching when using general polar codes. In one embodiment, a method of generating a codeword includes receiving bits at a polar encoder and encoding the bits using polar encoder kernels. The polar encoder kernels include a first kernel and a second kernel. The first kernel receives a set of input q-ary symbols and modifies the set of input q-ary symbols according to a first kernel generator matrix to produce a set of output q-ary symbols. The second kernel receives a set of input l-ary symbols, where l does not equal q, and modifies the set of input l-ary symbols according to a second kernel generator matrix to produce a set of output l-ary symbols. For example, the first kernel may be a binary kernel and the second kernel may be a Reed-Solomon (RS) based kernel.

5. 发明授权

US10567011B2 Systems and methods for piece-wise rate matching when using polar codes 有权
公开(公告)号：US10567011B2
公开(公告)日：2020-02-18
申请号：US15607591
申请日：2017-05-29
申请人： Ran Zhang , Wuxian Shi , Nan Cheng , Yiqun Ge
发明人： Ran Zhang , Wuxian Shi , Nan Cheng , Yiqun Ge
IPC分类号： H03M13/00 , H04L1/00
摘要： Systems and methods are disclosed that relate to performing rate matching when using polar codes. In one embodiment, a plurality of bits are received at a polar encoder. A value is obtained that corresponds to at least one of: a coding rate to be used to transmit the plurality of bits, and a number of coded bits to be used to transmit the plurality of bits. It is determined which range of values the value falls within, and an information sequence is obtained that corresponds to the range the value falls within. The plurality of bits are mapped to a subset of positions of an input vector according to the information sequence. The remaining positions of the input vector are set as frozen values that are known by a decoder. The input vector is then encoded in the polar encoder to generate a codeword.

6. 发明授权

US10361728B2 Multiple-symbol combination based decoding for general polar codes 有权
公开(公告)号：US10361728B2
公开(公告)日：2019-07-23
申请号：US15611281
申请日：2017-06-01
申请人： Wuxian Shi , Ran Zhang , Nan Cheng , Yiqun Ge
发明人： Wuxian Shi , Ran Zhang , Nan Cheng , Yiqun Ge
IPC分类号： H03M13/00 , H03M13/13 , H03M13/37 , H04L25/06
摘要： The present disclosure relates to multiple-symbol combination based decoding for general polar codes. Multiple-symbol combination based decoding of a received word that is based on a codeword involves determining whether all nodes at an intermediate stage of the multiple-symbol combination based decoding, which provide their outputs as inputs to a subset of nodes at a next stage of the multi-symbol combination based decoding, are associated with trust symbols in the received word that have a higher reliability of being successfully decoded than doubt symbols in the received word. A hard decision is performed in response to a positive determination.

7. 发明授权

US10291264B2 Systems and methods for rate matching when using general polar codes 有权
公开(公告)号：US10291264B2
公开(公告)日：2019-05-14
申请号：US15607584
申请日：2017-05-29
申请人： Ran Zhang , Wuxian Shi , Nan Cheng , Yiqun Ge
发明人： Ran Zhang , Wuxian Shi , Nan Cheng , Yiqun Ge
IPC分类号： H03M13/00 , H04L1/00 , H03M13/13
摘要： General polar codes are disclosed that encode symbols of a q-ary alphabet, where q≥2. Systems and methods are also disclosed for performing code rate matching when using general polar codes. In one embodiment, a method performed at a transmitter includes receiving a plurality of bits at a polar encoder. The plurality of bits represent a plurality of q-ary symbols, where q>2. The method further includes encoding the plurality of bits using the polar encoder to generate a codeword of q-ary symbols represented by bits. The method further includes puncturing the codeword according to a puncturing pattern to obtain a punctured codeword having a reduced bit length.

8. 发明授权

US12021572B2 Systems and methods for wireless signal configuration by a neural network 有权
公开(公告)号：US12021572B2
公开(公告)日：2024-06-25
申请号：US18080932
申请日：2022-12-14
申请人： Yiqun Ge , Wuxian Shi , Wen Tong
发明人： Yiqun Ge , Wuxian Shi , Wen Tong
IPC分类号： H04B17/26 , H04B17/373 , H04L25/02 , H04L25/03 , H04W24/10
CPC分类号： H04B17/26 , H04B17/373 , H04L25/0254 , H04L25/03165 , H04W24/10
摘要： A wireless network can generate candidate signal configurations for physical transmissions to or from a user equipment (UE) in a radio environment. The generation of candidate signal configurations can be performed using a first neural network that is associated with the UE. These signal configurations can then be evaluated using a second neural network that is associated with the radio environment. The second neural network can be trained using measurements from previous physical transmissions in the radio environment. The trained second neural network generates a reward value that is associated with the candidate signal configurations. The first neural network is then trained using the reward values from the second neural network to produce improved candidate signal configurations. When a signal configuration that produces a suitable reward value is generated, this signal configuration can be used for the physical transmission in the radio environment.

9. 发明授权

US10447435B2 Reduced-stage polar decoding 有权
公开(公告)号：US10447435B2
公开(公告)日：2019-10-15
申请号：US15651390
申请日：2017-07-17
申请人： Wuxian Shi , Yiqun Ge
发明人： Wuxian Shi , Yiqun Ge
IPC分类号： H04L1/00 , H03M13/45 , H03M13/13 , H03M13/00 , H04W88/02 , H04W88/08
摘要： In reduced-stage polar decoding, a received word that is based on an N-bit codeword of a polar code is decoded using fewer than log2N Log Likelihood Ratio (LLR) stages. Decoding uses a reduced stage decoding configuration. In an embodiment, such a configuration includes at least one higher-order LLR stage with nodes implementing functions that are based on a combination of lower-order polar code kernels.

10. 发明申请

US20170019222A1 METHOD OF REDUCED STATE DECODING AND DECODER THEREOF 审中-公开
标题翻译：减少状态解码的方法及其解码器
公开(公告)号：US20170019222A1
公开(公告)日：2017-01-19
申请号：US15203498
申请日：2016-07-06
申请人： Yiqun Ge , Wuxian Shi
发明人： Yiqun Ge , Wuxian Shi
IPC分类号： H04L5/00 , H04B7/26
CPC分类号： H04L5/0007 , H04B7/2628
摘要： Methods and devices are disclosed for receiving and decoding sparsely encoded data sequences using a message passing algorithm (MPA) or maximum likelihood sequence estimation (MLSE). Such data sequences may be used in wireless communications systems supporting multiple access, such as sparse code multiple access (SCMA) systems. The Methods and devices reduce the number of states in a search space for each received signal and associated function node based on a search threshold based on a characteristic related to the received signal and/or to a quality of a resource element over which the received signal is transmitted.
摘要翻译：公开了使用消息传递算法（MPA）或最大似然序列估计（MLSE）来接收和解码稀疏编码的数据序列的方法和装置。这样的数据序列可以用于支持多个接入的无线通信系统，例如稀疏码多址（SCMA）系统。方法和装置基于与接收信号相关的特征和/或资源元素的质量，基于搜索阈值来减少每个接收信号和相关联功能节点在搜索空间中的状态数量，被传送。

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