ClassID:

226021

H04L27/2644 - CPC Classification

Classification description:

Modulated-carrier systems; Systems using multi-frequency codes; Multicarrier modulation systems; Arrangements specific to the transmitter only; Modulators with oversampling

Recent Application in this class:
#1
20250317915
2025-10-09

Data Transmission Method and Apparatus, and Storage Medium and Electronic Apparatus

#2
20240388490
2024-11-21

DATA TRANSMISSION METHOD, DATA MODULATION METHOD, ELECTRONIC DEVICE, AND STORAGE MEDIUM

#3
20220271983
2022-08-25

Signal transmission method and communication apparatus

#4
20220247612
2022-08-04

Transmitter, receiver, transmitting method, and receiving method

#5
20200280475
2020-09-03

Transmitter, receiver, transmitting method, and receiving method

#6
20200252121
2020-08-06

Techniques for expanding communication range between wireless devices

#7
20200136691
2020-04-30

Receiver, communication system, and method implemented by computer for enabling both analog and digital beamforming in communication system

#8
20200092146
2020-03-19

Transmitter, receiver and a method for digital multiple sub-band processing

#9
20190253299
2019-08-15

Transmitter, receiver, transmitting method, and receiving method

#10
20190223026
2019-07-18

Transmission apparatus, reception apparatus, and communication system

#11
20190109749
2019-04-11

Phase tracking reference signal

#12
20190052486
2019-02-14

Method and transmitter for generating a waveform with optimized PAPR

#13
20180324020
2018-11-08

Transmission device, communication device, transmission signal generation method, reception device, and demodulation method

#14
20180062895
2018-03-01

Signal processing chain switching

#15
20180034676
2018-02-01

Method and apparatus for transmitting a signal

#16
20170237596
2017-08-17

Method of and apparatus for providing a multi-carrier modulated signal

#17
20170214558
2017-07-27

Transmitter, receiver and a method for digital multiple sub-band processing

#18
20160277936
2016-09-22

Transmission apparatus, reception apparatus, and communication system

#19
20160197758
2016-07-07

Methods, devices pertaining to transmission of multi-carrier signal

#20
20160191218
2016-06-30

METHODS AND APPARATUS FOR FASTER THAN NYQUIST RATE MULTI-CARRIER MODULATION

#21
20160182270
2016-06-23

Method and apparatus for transmitting a signal

#22
20160013963
2016-01-14

Transmission apparatus, reception apparatus, and communication system

#23
20140334395
2014-11-13

Method and apparatus for transmitting control information in a wireless communication system

#24
20140169501
2014-06-19

Receiver, transmitter and a method for digital multiple sub-band processing

#25
20140105325
2014-04-17

Arbitrary sample rate conversion for communication systems

#26
20130136165
2013-05-30

Reception device

#27
20120008700
2012-01-12

Radio communication system, transmission apparatus, reception apparatus, and radio communication method in radio communication

#28
20110268173
2011-11-03

METHOD FOR ADAPTING FILTER CUT-OFF FREQUENCIES FOR THE TRANSMISSION OF DISCRETE MULTITONE SYMBOLS

#29
20100260276
2010-10-14

Zero correlation zone based preamble for oversampled OFDM networks in URWIN

#30
20100128813
2010-05-27

Multi-channel signaling with equalization

#31
20100061224
2010-03-11

Transmitter for extending guard interval for individual user equipment in OFDMA systems

#32
20100002571
2010-01-07

Methods for transceiving data in multi-band orthogonal frequency division multiple access communications system and communications apparatuses utilizing the same

#33
20090245422
2009-10-01

Method and system for transmit upsampling via IFFT

#34
20070237067
2007-10-11

Apparatus and method for improved performance in radio telecommunication systems that use pulse-shaping filters

#35
20070183304
2007-08-09

Apparatus and method for digitally implementing a wideband multicarrier

#36
20060215540
2006-09-28

Efficient employment of digital upsampling using IFFT in OFDM systems for simpler analog filtering

#37
20050259628
2005-11-24

Method and transmission device for transmission of data in a multi-carrier system

#38
20050237988
2005-10-27

Packet generation systems and methods

#39
20050018598
2005-01-27

Apparatus and method for improved performance in radio telecommunication systems that use pulse-shaping filters

#40
15291832
2017-10-03

Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof

#41
15290708
2018-02-27

Manchester correlator