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H04L27/00
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Parent Industries
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ELECTRICITY
H04
Electric communication
H04L
TRANSMISSION OF DIGITAL INFORMATION
Current Industry
H04L27/00
Modulated-carrier systems
Sub Industries
H04L27/0002
analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
H04L27/0004
using wavelets
H04L27/0006
Assessment of spectral gaps suitable for allocating digitally modulated signals
H04L27/0008
arrangements for allowing a transmitter or receiver to use more than one type of modulation
H04L27/001
using chaotic signals
H04L27/0012
arrangements for identifying the type of modulation
H04L27/0014
Carrier regulation
H04L27/01
Equalisers
H04L27/02
Amplitude-modulated carrier systems
H04L27/04
Modulator circuits Transmitter circuits
H04L27/06
Demodulator circuits Receiver circuits
H04L27/063
Superheterodyne receivers
H04L27/066
Carrier recovery circuits
H04L27/08
Amplitude regulation arrangements
H04L27/10
Frequency-modulated carrier systems
H04L27/103
Chirp modulation
H04L27/106
M-ary FSK
H04L27/12
Modulator circuits Transmitter circuits
H04L27/122
using digital generation of carrier signals
H04L27/125
using a controlled oscillator in an open loop
H04L27/127
using a controlled oscillator in a feedback loop
H04L27/14
Demodulator circuits Receiver circuits
H04L27/142
Compensating direct current components occurring during the demodulation and which are caused by mistuning
H04L27/144
with demodulation using spectral properties of the received signal
H04L27/148
using filters, including PLL-type filters
H04L27/152
using controlled oscillators
H04L27/1525
using quadrature demodulation
H04L27/156
with demodulation using temporal properties of the received signal
H04L27/1563
using transition or level detection
H04L27/1566
using synchronous sampling
H04L27/16
Frequency regulation arrangements
H04L27/18
Phase-modulated carrier systems
H04L27/183
Multiresolution systems
H04L27/186
in which the information is carried by both the individual signal points and the subset to which the individual signal points belong
H04L27/20
Modulator circuits Transmitter circuits
H04L27/2003
for continuous phase modulation
H04L27/2007
in which the phase change within each symbol period is constrained
H04L27/201
in which the allowed phase changes vary with time
H04L27/2014
in which the phase changes in a piecewise linear manner during each symbol period
H04L27/2017
in which the phase changes are non-linear
H04L27/2021
in which the phase change per symbol period is not constrained
H04L27/2025
in which the phase changes in a piecewise linear manner within each symbol period
H04L27/2028
in which the phase changes are non-linear
H04L27/2032
for discrete phase modulation
H04L27/2035
using a single or unspecified number of carriers
H04L27/2039
using microwave technology
H04L27/2042
with more than two phase states
H04L27/2046
in which the data are represented by carrier phase
H04L27/205
in which the data are represented by the change in phase of the carrier
H04L27/2053
using more than one carrier
H04L27/2057
with a separate carrier for each phase state
H04L27/206
using a pair of orthogonal carriers
H04L27/2064
using microwave technology
H04L27/2067
with more than two phase states
H04L27/2071
in which the data are represented by the carrier phase
H04L27/2075
in which the data are represented by the change in carrier phase
H04L27/2078
in which the phase change per symbol period is constrained
H04L27/2082
for offset or staggered quadrature phase shift keying
H04L27/2085
with more than one phase shift per symbol period
H04L27/2089
with unbalanced quadrature channels
H04L27/2092
with digital generation of the modulated carrier (does not include the modulation of a digitally generated carrier)
H04L27/2096
Arrangements for directly or externally modulating an optical carrier
H04L27/22
Demodulator circuits Receiver circuits
H04L27/223
Demodulation in the optical domain
H04L27/227
using coherent demodulation
H04L27/2271
wherein the carrier recovery circuit uses only the demodulated signals
H04L27/2272
using phase locked loops
H04L27/2273
associated with quadrature demodulation
H04L27/2275
wherein the carrier recovery circuit uses the received modulated signals
H04L27/2276
using frequency multiplication or harmonic tracking
H04L27/2277
using remodulation
H04L27/2278
using correlation techniques
H04L27/233
using non-coherent demodulation
H04L27/2331
wherein the received signal is demodulated using one or more delayed versions of itself
H04L27/2332
using a non-coherent carrier
H04L27/2334
using filters
H04L27/2335
using temporal properties of the received signal
H04L27/2337
using digital techniques to measure the time between zero-crossings
H04L27/2338
using sampling
H04L27/24
Half-wave signalling systems
H04L27/26
Systems using multi-frequency codes
H04L27/2601
Multicarrier modulation systems
H04L27/2602
Signal structure
H04L27/2604
Multiresolution systems
H04L27/2605
Symbol extensions
H04L27/2607
Cyclic extensions
H04L27/2608
Allocation of payload
H04L27/261
Details of reference signals
H04L27/2611
Distribution thereof
H04L27/2613
Structure of the reference signals per se
H04L27/2614
Peak power aspects
H04L27/2615
Reduction thereof using coding
H04L27/2617
using block codes
H04L27/2618
Reduction thereof using auxiliary subcarriers
H04L27/262
Reduction thereof by selection of pilot symbols
H04L27/2621
Reduction thereof using phase offsets between subcarriers
H04L27/2623
Reduction thereof by clipping
H04L27/2624
by soft clipping
H04L27/2626
Arrangements specific to the transmitter
H04L27/2627
Modulators
H04L27/2628
Inverse Fourier transform modulators
H04L27/263
modification of IFFT/IDFT modulator for performance improvement
H04L27/2631
with polyphase implementation
H04L27/2633
using partial FFTs
H04L27/2634
IFFT/IDFT in combination with other circuits for modulation
H04L27/2636
with FFT/DFT
H04L27/2637
with direct modulation of individual subcarriers
H04L27/2639
Discrete cosine transform modulators
H04L27/264
Filterbank multicarrier [FBMC]
H04L27/2642
Wavelet transform modulators
H04L27/2643
using symbol repetition
H04L27/2644
with oversampling
H04L27/2646
using feedback from receiver for adjusting OFDM transmission parameters
H04L27/2647
Arrangements specific to the receiver
H04L27/2649
Demodulators
H04L27/265
Fourier transform demodulators
H04L27/2652
with polyphase implementation
H04L27/2653
with direct demodulation of individual subcarriers
H04L27/2655
Synchronisation arrangements
H04L27/2656
Frame synchronisation
H04L27/2657
Carrier synchronisation
H04L27/2659
Coarse or integer frequency offset determination and synchronisation
H04L27/266
Fine or fractional frequency offset determination and synchronisation
H04L27/2662
Symbol synchronisation
H04L27/2663
Coarse synchronisation
H04L27/2665
Fine synchronisation
H04L27/2666
Acquisition of further OFDM parameters
H04L27/2668
Details of algorithms
H04L27/2669
characterised by the domain of operation
H04L27/2671
Time domain
H04L27/2672
Frequency domain
H04L27/2673
characterised by synchronisation parameters
H04L27/2675
Pilot or known symbols
H04L27/2676
Blind
H04L27/2678
using cyclostationarities
H04L27/2679
Decision-aided
H04L27/2681
characterised by constraints
H04L27/2682
Precision
H04L27/2684
Complexity
H04L27/2685
Speed of convergence
H04L27/2686
Range of frequencies or delays tested
H04L27/2688
Resistance to perturbation
H04L27/2689
Link with other circuits
H04L27/2691
involving interference determination or cancellation
H04L27/2692
with preamble design
H04L27/2694
adaptive design
H04L27/2695
with channel estimation
H04L27/2697
in combination with other modulation techniques
H04L27/2698
double density OFDM/OQAM system
H04L27/28
with simultaneous transmission of different frequencies each representing one code element
H04L27/30
wherein each code element is represented by a combination of frequencies
H04L27/32
Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
H04L27/34
Amplitude- and phase-modulated carrier systems
H04L27/3405
Modifications of the signal space to increase the efficiency of transmission
H04L27/3411
reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
H04L27/3416
in which the information is carried by both the individual signal points and the subset to which the individual points belong
H04L27/3422
in which the constellation is not the n - fold Cartesian product of a single underlying two-dimensional constellation
H04L27/3427
in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
H04L27/3433
using an underlying square constellation
H04L27/3438
using an underlying generalised cross constellation
H04L27/3444
by applying a certain rotation to regular constellations
H04L27/345
Modifications of the signal space to allow the transmission of additional information
H04L27/3455
in order to facilitate carrier recovery at the receiver end
H04L27/3461
in order to transmit a subchannel
H04L27/3466
by providing an alternative to one signal point
H04L27/3472
by switching between alternative constellations
H04L27/3477
by using the outer points of the constellation or of the constituent two-dimensional constellations
H04L27/3483
using a modulation of the constellation points
H04L27/3488
Multiresolution systems
H04L27/3494
using non - square modulating pulses, e.g. using raised cosine pulses; Partial response QAM
H04L27/36
Modulator circuits Transmitter circuits
H04L27/361
Modulation using a single or unspecified number of carriers
H04L27/362
Modulation using more than one carrier
H04L27/363
using non - square modulating pulses, modulators specifically designed for this
H04L27/364
Arrangements for overcoming imperfections in the modulator
H04L27/365
Modulation using digital generation of the modulated carrier (not including modulation of a digitally generated carrier)
H04L27/366
Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
H04L27/367
using predistortion
H04L27/368
adaptive predistortion
H04L27/38
Demodulator circuits Receiver circuits
H04L27/3809
Amplitude regulation arrangements
H04L27/3818
using coherent demodulation
H04L27/3827
in which the carrier is recovered using only the demodulated baseband signals
H04L27/3836
in which the carrier is recovered using the received modulated signal or the received IF signal
H04L27/3845
using non - coherent demodulation
H04L27/3854
using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
H04L27/3863
Compensation for quadrature error in the received signal
H04L27/3872
Compensation for phase rotation in the demodulated signal
H04L27/3881
using sampling and digital processing, not including digital systems which imitate heterodyne or homodyne demodulation
H04L27/389
with separate demodulation for the phase and amplitude components
Industries
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last 30 patents
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Patent Grant
Method for communication in a communication network
Patent number
11,968,146
Issue date
Apr 23, 2024
WISIG NETWORKS PRIVATE LIMITED
Kiran Kumar Kuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control channel overlap handling for systems with large subcarrier...
Patent number
11,968,550
Issue date
Apr 23, 2024
QUALCOMM Incorporated
Wooseok Nam
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Physical uplink control channel (PUCCH) resource selection
Patent number
11,968,670
Issue date
Apr 23, 2024
QUALCOMM Incorporated
Tanumay Datta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for uplink channel access to unlicensed band in wireless com...
Patent number
11,968,680
Issue date
Apr 23, 2024
Wilus Institute Of Standards And Technology Inc.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
11,968,029
Issue date
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SATIXFY ISRAEL LTD.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
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Patent number
11,968,066
Issue date
Apr 23, 2024
Huawei Technologies Co., Ltd.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatus for receiving a user message in a communicati...
Patent number
11,968,065
Issue date
Apr 23, 2024
Marvell Asia Pte, Ltd.
Hyun Soo Cheon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coding and modulation apparatus using non-uniform constellation
Patent number
11,968,072
Issue date
Apr 23, 2024
Saturn Licensing LLC
Nabil Loghin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sidelink communication
Patent number
11,967,999
Issue date
Apr 23, 2024
LG Electronics Inc.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reception method and reception chain for a PLC modem
Patent number
11,968,002
Issue date
Apr 23, 2024
SAGEMCOM ENERGY & TELECOM SAS
Jérôme Barois
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication between devices during wireless power transfer
Patent number
11,968,004
Issue date
Apr 23, 2024
Apple Inc.
Jeffrey D. Louis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signaling in a high efficiency wireless network
Patent number
11,968,717
Issue date
Apr 23, 2024
Atlas Global Technologies LLC
Dae Won Lee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Quadrature phase shift keying quadrature amplitude modulation trans...
Patent number
11,968,073
Issue date
Apr 23, 2024
The Regents of the University of California
Hossein Mohammadnezhad
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Terrestrial based high speed data communications mesh network
Patent number
11,968,026
Issue date
Apr 23, 2024
SMARTSKY NETWORKS LLC
Donald Alcorn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatus for signalling in a Wireless Local Area Network
Patent number
11,968,067
Issue date
Apr 23, 2024
Telefonaktiebolaget LM Ericsson (publ)
Miguel Lopez
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Peak reduction tone allocation techniques
Patent number
11,968,068
Issue date
Apr 23, 2024
QUALCOMM Incorporated
Peter Gaal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Technologies for transmitting or receiving an aggregate physical la...
Patent number
11,968,070
Issue date
Apr 23, 2024
Apple Inc.
Lei Huang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM transmitter device having a symbol generator for generating no...
Patent number
11,968,071
Issue date
Apr 23, 2024
SUN PATENT TRUST
Yoshinobu Matsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal power reduction systems and methods
Patent number
11,968,001
Issue date
Apr 23, 2024
Cable Television Laboratories, Inc.
Thomas H. Williams
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel acquisition using orthogonal time frequency space modulated...
Patent number
11,968,144
Issue date
Apr 23, 2024
Cohere Technologies, Inc.
Yoav Hebron
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for receiving PPDU with duplicated data throug...
Patent number
11,968,069
Issue date
Apr 23, 2024
LG Electronics Inc.
Eunsung Park
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radio link monitoring method and user equipment
Patent number
11,968,552
Issue date
Apr 23, 2024
VIVO MOBILE COMMUNICATION CO., LTD.
Li Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Repetition-based uplink for low latency communications in a new rad...
Patent number
11,968,664
Issue date
Apr 23, 2024
QUALCOMM Incorporated
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for transceiving wireless signal in wireless c...
Patent number
11,963,194
Issue date
Apr 16, 2024
LG Electronics Inc.
Suckchel Yang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatuses for system information transmission and sys...
Patent number
11,963,253
Issue date
Apr 16, 2024
NEC Corporation
Hongmei Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reception apparatus and reception method
Patent number
11,963,141
Issue date
Apr 16, 2024
SUN PATENT TRUST
Zhi Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Terminal, base station and method performed by the same in wireless...
Patent number
11,963,160
Issue date
Apr 16, 2024
Samsung Electronics Co., Ltd.
Sa Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for obtaining quantity of resource elements in communication...
Patent number
11,962,526
Issue date
Apr 16, 2024
Huawei Technologies Co., Ltd.
Ting Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pilot transmission and reception for orthogonal frequency division...
Patent number
11,962,530
Issue date
Apr 16, 2024
Atlas Global Technologies LLC
Dae Won Lee
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel state information reference signal (CSI-RS) as part of disc...
Patent number
11,962,531
Issue date
Apr 16, 2024
Apple Inc.
Bishwarup Mondal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
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Publication number
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Publication date
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H03 - BASIC ELECTRONIC CIRCUITRY
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Publication date
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Publication number
20240137873
Publication date
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QUALCOMM Incorporated
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Publication number
20240137881
Publication date
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Samsung Electronics Co., Ltd.
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Samsung Electronics Co., Ltd.
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Publication number
20240137256
Publication date
Apr 25, 2024
QUALCOMM Incorporated
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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Publication number
20240137260
Publication date
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Telefonaktiebolaget LM Ericsson (publ)
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SOUNDING REFERENCE SIGNAL ENHANCEMENT
Publication number
20240137171
Publication date
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ZTE Corporation
Ke YAO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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EFFICIENT ARITHMETIC CODING FOR MULTIPLE COMPOSITION DISTRIBUTION M...
Publication number
20240137253
Publication date
Apr 25, 2024
QUALCOMM Incorporated
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H03 - BASIC ELECTRONIC CIRCUITRY
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Patent Application
FREQUENCY DOMAIN IMBALANCE CORRECTION
Publication number
20240137259
Publication date
Apr 25, 2024
QUALCOMM Incorporated
Aviv Regev
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
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Publication number
20240137261
Publication date
Apr 25, 2024
QUALCOMM Incorporated
Liangming WU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ELECTRONIC DEVICE FOR HETEROGENEOUS PROTOCOL COMMUNICATION, COMMUNI...
Publication number
20240137262
Publication date
Apr 25, 2024
Samsung Electronics Co., Ltd.
Seokwon YANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NR AIR-TO-GROUND SIGNALING ENHANCEMENT TO SUPPORT MULTIPLE NUMEROLO...
Publication number
20240137088
Publication date
Apr 25, 2024
Qiaoyu LI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECEIVING CSI-RS AND PDSCH USING MULTIPLE DFTS
Publication number
20240137170
Publication date
Apr 25, 2024
LENOVO (SINGAPORE) PTE. LTD
Ali Ramadan Ali
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND DEVICE(S) FOR SUPPORTING MACHINE LEARNING BASED CREST FA...
Publication number
20240137258
Publication date
Apr 25, 2024
Telefonaktiebolaget LM Ericsson (publ)
S M Shahrear TANZIL
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DELAY-COMPENSATING POWER MANAGEMENT CIRCUIT
Publication number
20240136979
Publication date
Apr 25, 2024
Qorvo US, Inc.
Nadim Khlat
G05 - CONTROLLING REGULATING
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Patent Application
UNEQUAL MODULATION AND CODING SCHEME FOR PROBABILISTIC CONSTELLATIO...
Publication number
20240129174
Publication date
Apr 18, 2024
Qinghua Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
WI-FI SPECTRUM EFFICIENCY
Publication number
20240129805
Publication date
Apr 18, 2024
Apple Inc.
Alexander Sirotkin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
5G NEW RADIO UPLINK INTERMODULATION DISTORTION MITIGATION
Publication number
20240129946
Publication date
Apr 18, 2024
T-Mobile USA, Inc.
Ming Shan Kwok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYMBOL SENDING METHOD, SYMBOL RECEIVING METHOD, SENDING DEVICE, REC...
Publication number
20240129175
Publication date
Apr 18, 2024
ZTE Corporation
Zhifeng YUAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
UPLINK CHANNEL QUALITY MEASUREMENT USING A SUBFRAME WITH HIGH-INTEN...
Publication number
20240129090
Publication date
Apr 18, 2024
QUALCOMM Incorporated
Alexandros MANOLAKOS
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Cell Timing in a Wireless Device and Base Station
Publication number
20240129857
Publication date
Apr 18, 2024
Comcast Cable Communications, LLC
Esmael Hejazi Dinan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
TRANSMITTING DATA USING AUDIO TRANSMISSIONS AND QUADRATURE AMPLITUD...
Publication number
20240129354
Publication date
Apr 18, 2024
LISNR, INC.
Rebekah Farrar
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Application
DMRS WITH DYNAMIC AND CONTROLLABLE PAPR PROPERTIES
Publication number
20240129172
Publication date
Apr 18, 2024
QUALCOMM Incorporated
Igor GUTMAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CYCLIC SHIFT HOPPING FOR UPLINK REFERENCE SIGNALS
Publication number
20240129173
Publication date
Apr 18, 2024
QUALCOMM Incorporated
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Secure And Energy Efficient Communication System For Nextgen Wirele...
Publication number
20240129176
Publication date
Apr 18, 2024
Board of Trustees of Michigan State University
Tongtong LI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
METHOD AND APPARATUS FOR DETERMINING MODULATION AND CODING SCHEME M...
Publication number
20240121024
Publication date
Apr 11, 2024
Huawei Technologies Co., Ltd
Dan HU
H04 - ELECTRIC COMMUNICATION TECHNIQUE