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公开(公告)号：US11206626B2
公开(公告)日：2021-12-21
申请号：US16719758
申请日：2019-12-18
摘要： An apparatus are provided for wireless communication at a base station with improved PBCH construction and decoding. The base station apparatus constructs a PBCH payload, wherein a bit location is selected for encoding a plurality of bits of the PBCH based on an estimated reliability for the corresponding bits location wherein the plurality of bits comprises frozen bits, unknown bits that are unknown to a user equipment, and potentially known bits that are potentially known by the user equipment. The apparatus transmits the PBCH payload in at least one of a plurality of SS blocks. A UE receiving the PBCH decodes the PBCH based on a successive decoding order. The successive decoding order may be based on an estimated reliability for the corresponding bits, e.g., in which potentially known bits are decoded prior to unknown bits.
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公开(公告)号：US10686556B2
公开(公告)日：2020-06-16
申请号：US15870197
申请日：2018-01-12
摘要： Aspects of the disclosure relate to polar coding. A polar codeword may be generated by sorting a plurality of synthetic channels utilized for transmission of the polar codeword over an air interface in order of reliability utilizing a convex combination of the mutual information calculated for each synthetic channel based on an Additive White Gaussian Noise (AWGN) channel and the mutual information calculated for each synthetic channel based on a binary erasure channel. A polar codeword may further be generated by sorting the plurality of synthetic channels in order of reliability utilizing cumulative sums calculated for each synthetic channel. Each cumulative sum may be calculated from a binary representation of a position of the synthetic channel within the plurality of synthetic channels.
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公开(公告)号：US10560910B2
公开(公告)日：2020-02-11
申请号：US15926884
申请日：2018-03-20
摘要： An apparatus is provided for wireless communication at a base station with improved PBCH construction and decoding. The base station apparatus constructs a PBCH payload, wherein a bit location is selected for encoding a plurality of bits of the PBCH based on an estimated reliability for the corresponding bits location wherein the plurality of bits comprises frozen bits, unknown bits that are unknown to a user equipment, and potentially known bits that are potentially known by the user equipment. The apparatus transmits the PBCH payload in at least one of a plurality of SS blocks. A UE receiving the PBCH decodes the PBCH based on a successive decoding order. The successive decoding order may be based on an estimated reliability for the corresponding bits, e.g., in which potentially known bits are decoded prior to unknown bits.
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44.发明授权公开(公告)号：US10419176B2
公开(公告)日：2019-09-17
申请号：US15171941
申请日：2016-06-02
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：US10157161B2
公开(公告)日：2018-12-18
申请号：US14885942
申请日：2015-10-16
发明人： Urs Niesen , Shrinivas Kudekar
摘要： System, methods, and apparatus are described for transmitting encoded bits over a bus by conditionally embedding dynamically shielded information. In an example, the apparatus transmits a first group of encoded bits over a bus, generates a second group of encoded bits to be transmitted over the bus, where a first subset of the second group of encoded bits are encoded to avoid crosstalk-inducing bit transitions on adjacent lines of the bus, and configures one or more encoded bits of a second subset of the second group of encoded bits to ensure that the second group of encoded bits includes parity information and/or clock information, while further ensuring that crosstalk-inducing bit transitions in the second group of encoded bits are avoided.
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公开(公告)号：US20180226989A1
公开(公告)日：2018-08-09
申请号：US15943624
申请日：2018-04-02
摘要： Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing LDPC base graphs. Two or more LDPC base graphs may be maintained that are associated with different ranges of overlapping information block lengths. A particular LDPC base graph may be selected for an information block based on the information block length of the information block. Additional metrics that may be considered when selecting the LDPC base graph may include the code rate utilized to encode the information block and/or the lift size applied to each LDPC base graph to produce the information block length of the information block.
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公开(公告)号：US20180205496A1
公开(公告)日：2018-07-19
申请号：US15870197
申请日：2018-01-12
IPC分类号： H04L1/00
摘要： Aspects of the disclosure relate to polar coding. A polar codeword may be generated by sorting a plurality of synthetic channels utilized for transmission of the polar codeword over an air interface in order of reliability utilizing a convex combination of the mutual information calculated for each synthetic channel based on an Additive White Gaussian Noise (AWGN) channel and the mutual information calculated for each synthetic channel based on a binary erasure channel. A polar codeword may further be generated by sorting the plurality of synthetic channels in order of reliability utilizing cumulative sums calculated for each synthetic channel. Each cumulative sum may be calculated from a binary representation of a position of the synthetic channel within the plurality of synthetic channels.
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公开(公告)号：US09917675B2
公开(公告)日：2018-03-13
申请号：US15395713
申请日：2016-12-30
CPC分类号： H04L1/0063 , H03M13/09 , H03M13/098 , H03M13/13 , H03M13/3738 , H03M13/3977 , H03M13/612 , H04L1/0041 , H04L1/0045 , H04L1/0054 , H04L1/0057 , H04L1/0061
摘要： Certain aspects of the present disclosure relate to techniques and apparatus for improving decoding latency and performance of Polar codes. An exemplary method generally includes generating a codeword by encoding information bits, using a multi-dimensional interpretation of a polar code of length N, determining, based on one or more criteria, a plurality of locations within the codeword to insert error correction codes generating the error correction codes based on corresponding portions of the information bits, inserting the error correction codes at the determined plurality of locations, and transmitting the codeword. Other aspects, embodiments, and features are also claimed and described.
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49.发明申请公开(公告)号：US20180035427A1
公开(公告)日：2018-02-01
申请号：US15394074
申请日：2016-12-29
发明人： Piyush Gupta , Shrinivas Kudekar , Junyi Li
CPC分类号： H04W72/0446 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1607 , H04L5/0055 , H04L5/0057 , H04W72/02 , H04W72/0413
摘要： Aspects of the disclosure relate to a sidelink signal communication scheme that provides for rapid adaptation of the sidelink transmission based on feedback received during each transmission time interval (TTI). In this way, any lack of precision in interference measurements, or rapid changes in the amount of interference, which otherwise might cause a modulation and coding scheme (MCS) that was selected for the sidelink transmission to be unsuitable, may be adapted to improve the reliability of the transmission. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US20170163375A1
公开(公告)日：2017-06-08
申请号：US14958883
申请日：2015-12-03
发明人： Urs Niesen , Shrinivas Kudekar
CPC分类号： H04L1/0041 , G06F13/4208 , H04B3/32 , H04L1/0042 , H04L1/08 , H04L25/14
摘要： System, methods, and apparatus are described that facilitate transmission/reception of data over a multi-line parallel bus. In an example, the apparatus transmits data bits over a parallel bus includes determining from a prior bus state, a plurality of free wires in the bus for a current bus state, where each free wire satisfies a crosstalk-avoidance constraint in the current bus state for all values of a bit transmitted on the free wire. The apparatus may encode a plurality of data bits using a crosstalk avoidance encoder to obtain a CAC-encoded word, compute an error detection or correction code for the CAC-encoded word, assign bits of the error detection or correction code to the plurality of free wires for transmission during the current bus state, and assign the CAC-encoded word to unassigned wires of the bus for transmission during the current bus state.
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