ClassID:

226056

H04L27/3433 - CPC Classification

Classification description:

Modulated-carrier systems; Carrier systems characterised by combinations of two or more of the types covered by groups , , or; Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems; Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation using an underlying square constellation

Recent Application in this class:
#1
20240340212
2024-10-10

METHODS FOR COMMUNICATING N+1 BITS AND RELATED NODES

#2
20230164017
2023-05-25

Bits-to-symbols mapping for amplitude modulation

#3
20230155878
2023-05-18

Telecommunication method with polar constellations and corresponding devices

#4
20220303166
2022-09-22

Distribution matching for probabilistic constellation shaping with an arbitrary input/output alphabet

#5
20210058282
2021-02-25

Transmission method, transmission device, reception method, and reception device

#6
20200280476
2020-09-03

Methods and communication apparatuses for bit-to-symbol mapping

#7
20200014577
2020-01-09

Transmission method, transmission device, reception method, and reception device

#8
20190342138
2019-11-07

Methods of converting or reconverting a data signal and method and system for data transmission and/or data reception

#9
20190268210
2019-08-29

Data transmission method and device using non-uniform APSK constellations

#10
20190149390
2019-05-16

DISTRIBUTION MATCHING FOR PROBABILISTIC CONSTELLATION SHAPING WITH AN ARBITRARY INPUT/OUTPUT ALPHABET

#11
20190149389
2019-05-16

DISTRIBUTION MATCHING FOR PROBABILISTIC CONSTELLATION SHAPING WITH AN ARBITRARY INPUT/OUTPUT ALPHABET

#12
20190149388
2019-05-16

DISTRIBUTION MATCHING FOR PROBABILISTIC CONSTELLATION SHAPING WITH AN ARBITRARY INPUT/OUTPUT ALPHABET

#13
20190149387
2019-05-16

DISTRIBUTION MATCHING FOR PROBABILISTIC CONSTELLATION SHAPING WITH AN ARBITRARY INPUT/OUTPUT ALPHABET

#14
20190149385
2019-05-16

Transmission method, transmission device, reception method, and reception device

#15
20190149242
2019-05-16

Distribution matching for probabilistic constellation shaping with an arbitrary input/output alphabet

#16
20190132164
2019-05-02

Using multi-level pulse amplitude modulation with probabilistic shaping

#17
20180337812
2018-11-22

System and method for encoding and decoding data

#18
20180309604
2018-10-25

Apparatus and method for reducing effects of phase noise

#19
20170126463
2017-05-04

Enhanced spatial multiplexing

#20
20160204972
2016-07-14

Apparatus and method for transmitting signal, apparatus and method for receiving signal

#21
20140376665
2014-12-25

Method and system for mapping bit sequences

#22
20140320182
2014-10-30

Geographic locating remote endpoint monitor device, system, and methodology thereof

#23
20130195040
2013-08-01

Geographic locating remote endpoint monitor device, system, and methodology thereof

#24
20130010904
2013-01-10

System and method performing Quadrature Amplitude Modulation by combining co-sets and strongly coded co-set identifiers

#25
20120134452
2012-05-31

Soft-demapping of QAM signals

#26
20110044399
2011-02-24

List-viterbi hard iterative decoder for multilevel codes

#27
20110044398
2011-02-24

Hard iterative decoder for multilevel codes

#28
20110026628
2011-02-03

Apparatus and method for mapping symbol

#29
20100303171
2010-12-02

System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers

#30
20100146365
2010-06-10

Encoding and modulating method, and decoding method for wireless communication apparatus

#31
20090238302
2009-09-24

Method and apparatus for signal coding

#32
20090103509
2009-04-23

Geographic locating remote endpoint monitor device, system, and methodology thereof

#33
20080292017
2008-11-27

Modulation of Data Streams With Constellation Subset Mapping

#34
20070071114
2007-03-29

Mobile multifrequency transmitter transmitting on frequencies based on geographic locations and a method thereof

#35
20060140299
2006-06-29

QAM symbol mapping method and apparatus for downstream transmission of a cable modem

#36
20060093054
2006-05-04

Method and apparatus for signal coding

#37
20060078062
2006-04-13

Method and system for a turbo trellis coded modulation scheme for communication systems

#38
20060056537
2006-03-16

Multiple qam modulation device, multiple qam demodulation device, and communication method using gain-difference multiplexing

#39
20050074068
2005-04-07

Coded modulation for partially coherent systems

#40
16224174
2020-02-18

Geometrically shaping QAM modulation