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公开(公告)号：US11025276B2
公开(公告)日：2021-06-01
申请号：US16525307
申请日：2019-07-29
摘要： Certain aspects of the present disclosure generally relate to techniques for enhanced puncturing and low-density parity-check (LDPC) code structure. A method for wireless communications by a transmitting device is provided. The method generally includes encoding a set of information bits based on a LDPC code to produce a code word, the LDPC code defined by a base matrix having a first number of variable nodes and a second number of check nodes; puncturing the code word according to a puncturing pattern designed to puncture bits corresponding to at least two of the variable nodes to produce a punctured code word; adding at least one additional parity bit for the at least two punctured variable nodes; and transmitting the punctured code word.
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公开(公告)号：US10784901B2
公开(公告)日：2020-09-22
申请号：US15202207
申请日：2016-07-05
发明人： Shrinivas Kudekar , Se Yong Park , Alexandros Manolakos , Krishna Kiran Mukkavilli , Vincent Loncke , Joseph Binamira Soriaga , Jing Jiang , Thomas Joseph Richardson
摘要： Certain aspects of the present disclosure generally relate to techniques for puncturing of structured low density parity check (LDPC) codes. A method for wireless communications by wireless node is provided. The method generally includes encoding a set of information bits based on a LDPC code to produce a code word, the LDPC code defined by a matrix having a first number of variable nodes and a second number of check nodes, puncturing the code word to produce a punctured code word, wherein the puncturing is performed according to a first puncturing pattern designed to puncture bits corresponding to one or more of the variable nodes having a certain degree of connectivity to the check nodes, and transmitting the punctured code word.
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公开(公告)号：US10778366B2
公开(公告)日：2020-09-15
申请号：US15940026
申请日：2018-03-29
发明人： Vincent Loncke , Raghunath Kalavai , Yi Cao , Thomas Richardson , Joseph Binamira Soriaga , Shrinivas Kudekar
摘要： Various aspects described herein relate to techniques for rate matching and interleaving in wireless communications (e.g., 5G NR). In an example, a method described herein includes encoding one or more information bits to generate a first codeblock, rate matching the first codeblock to generate a second codeblock, segmenting, using bit distribution, the second codeblock into one or more sub-blocks each having a plurality of bits. The method further includes interleaving the plurality of bits on each of the one or more sub-blocks, concatenating, using bit collection, the one or more sub-blocks to generate a third codeblock in response to the interleaving, and transmitting a signal using the third codeblock.
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公开(公告)号：US10348329B2
公开(公告)日：2019-07-09
申请号：US15894197
申请日：2018-02-12
发明人： Joseph Binamira Soriaga , Shrinivas Kudekar , Thomas Joseph Richardson , Jing Jiang , Renqiu Wang
摘要： Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing a configurable circular buffer for rate matched transmissions. The circular buffer may be configured based on a selected mother code rate and a fixed circular buffer length. For example, the respective sizes of the systematic and parity bit sections of the circular buffer may be variable based on the selected mother code rate.
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公开(公告)号：US20180294917A1
公开(公告)日：2018-10-11
申请号：US15940026
申请日：2018-03-29
发明人： Vincent Loncke , Raghunath Kalavai , Yi Cao , Thomas Richardson , Joseph Binamira Soriaga , Shrinivas Kudekar
IPC分类号： H04L1/00
摘要： Various aspects described herein relate to techniques for rate matching and interleaving in wireless communications (e.g., 5G NR). In an example, a method described herein includes encoding one or more information bits to generate a first codeblock, rate matching the first codeblock to generate a second codeblock, segmenting, using bit distribution, the second codeblock into one or more sub-blocks each having a plurality of bits. The method further includes interleaving the plurality of bits on each of the one or more sub-blocks, concatenating, using bit collection, the one or more sub-blocks to generate a third codeblock in response to the interleaving, and transmitting a signal using the third codeblock.
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公开(公告)号：US20180234114A1
公开(公告)日：2018-08-16
申请号：US15894197
申请日：2018-02-12
发明人： Joseph Binamira Soriaga , Shrinivas Kudekar , Thomas Joseph Richardson , Jing Jiang , Renqiu Wang
CPC分类号： H03M13/1148 , H03M13/09 , H03M13/116 , H03M13/1185 , H03M13/1188 , H03M13/6306 , H03M13/6356 , H03M13/6393 , H03M13/6516 , H04L1/00 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/1819
摘要： Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing a configurable circular buffer for rate matched transmissions. The circular buffer may be configured based on a selected mother code rate and a fixed circular buffer length. For example, the respective sizes of the systematic and parity bit sections of the circular buffer may be variable based on the selected mother code rate.
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7.发明申请公开(公告)号：US20170141895A1
公开(公告)日：2017-05-18
申请号：US15171941
申请日：2016-06-02
CPC分类号： H04L5/0048 , H04L1/0078 , H04L1/1671 , H04L1/1887 , H04L5/0053 , H04W72/0413 , H04W72/042
摘要： Various aspects of the present disclosure provide for methods, apparatus, and computer software for transmitting in-band control information in a wireless communication channel. A control and data information coding scheme is utilized to reduce the block error rate (BLER) of in-band control information in various scenarios. A subframe carries coded control information, coded data information, and coded control-data information for reducing the BLER of the in-band control information. The coded control information and coded data information are mix-coded to generate coded control-data information.
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公开(公告)号：US11496154B2
公开(公告)日：2022-11-08
申请号：US17090498
申请日：2020-11-05
摘要： Certain aspects of the present disclosure generally relate to techniques for puncturing of structured low-density parity-check (LDPC) codes. Certain aspects of the present disclosure generally relate to methods and apparatus for a high-performance, flexible, and compact LDPC code. Certain aspects can enable LDPC code designs to support large ranges of rates, blocklengths, and granularity, while being capable of fine incremental redundancy hybrid automatic repeat request (IR-HARQ) extension while maintaining good floor performance, a high-level of parallelism to deliver high throughout performance, and a low description complexity.
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公开(公告)号：US11239947B2
公开(公告)日：2022-02-01
申请号：US17178012
申请日：2021-02-17
发明人： Jing Jiang , Gabi Sarkis , Yang Yang , Shrinivas Kudekar , Joseph Binamira Soriaga , Hari Sankar , Changlong Xu , Chao Wei
摘要： Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.
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公开(公告)号：US10735134B2
公开(公告)日：2020-08-04
申请号：US16058196
申请日：2018-08-08
发明人： Joseph Binamira Soriaga , Shrinivas Kudekar , Thomas Joseph Richardson , Gabi Sarkis , Jing Jiang
摘要： Methods, systems, and devices for wireless communication are described. In some examples, a wireless device (e.g., a user equipment (UE) or a base station) may encode a codeword from a set of information bits using an LDPC code. The wireless device may then transmit multiple versions of the codeword to improve the chances of the codeword being received. In some aspects, the wireless device may use the techniques herein to generate self-decodable redundancy versions of the codeword to be transmitted to the receiving device. Accordingly, a receiving device may be able to identify information bits from one or more redundancy versions of the codeword even if the receiving device failed to receive an original transmission of the codeword.
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