H04L 5/023
Multiplexing of multicarrier modulation signals
Official title: {Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] (multicarrier modulation H04L27/2601)}
H04L5/023 (Multiplexing of multicarrier modulation signals) appears on 1,479 US grants and 1,506 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,479
- Published applications
- 1,506
- Assignees
- 409
- Inventors
- 2,239
- Latest grant
- 14 Jul 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
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| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 24 | 0 |
| 1999 | 31 | 0 |
| 2000 | 30 | 0 |
| 2001 | 30 | 20 |
| 2002 | 59 | 101 |
| 2003 | 52 | 55 |
| 2004 | 45 | 69 |
| 2005 | 44 | 122 |
| 2006 | 65 | 128 |
| 2007 | 48 | 226 |
| 2008 | 100 | 172 |
| 2009 | 84 | 84 |
| 2010 | 128 | 89 |
| 2011 | 119 | 39 |
| 2012 | 118 | 41 |
| 2013 | 84 | 30 |
| 2014 | 67 | 40 |
| 2015 | 63 | 37 |
| 2016 | 24 | 19 |
| 2017 | 23 | 20 |
| 2018 | 10 | 29 |
| 2019 | 34 | 35 |
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| 2021 | 36 | 34 |
| 2022 | 36 | 22 |
| 2023 | 29 | 15 |
| 2024 | 26 | 15 |
| 2025 | 14 | 11 |
| 2026 | 4 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Channel estimation for two-stage sidelink control using sidelink data channel DMRS14 Jul 2026US 12,683,736 B2QUALCOMM Incorporated
- Information transmission method, terminal device, and network device30 Jun 2026US 12,672,149 B2Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Serialization circuitry having an integrated buffer for a serializer/derserilizer communication system26 May 2026US 12,640,901 B2Advanced Micro Devices, Inc.
- Systems, methods, and devices for electronic spectrum management for identifying open space19 May 2026US 12,634,178 B2Digital Global Systems, Inc.
- Coexistence schemes for wireless communication and sensing23 Dec 2025US 12,506,527 B2Zte Corporation
- Systems, methods, and devices for electronic spectrum management for identifying open space24 Sep 2026US 2026/0291788 A1Digital Global Systems, Inc.
- Method, apparatus, and system for multiplexing wireless communication with ai-based user separation30 Jul 2026US 2026/0222317 A1Chung Ang University Industry Academic Cooperation Foundation
- Multiplexing of small data transmissions18 Jun 2026US 2026/0173070 A1QUALCOMM Incorporated
- Random-access communication with tensor based modulation of first message part for non-coherent demodulation and coherent demodulation of second message part11 Jun 2026US 2026/0164470 A1Huawei Technologies Co., Ltd.
- Taylor expansion approximation based direct frequency domain autocorrelation function estimation and applications28 May 2026US 2026/0149551 A1Sequans Communications
Most cited
By later US patents
- Determination of a channel estimate of a transmission channel991US 7,561,637 B2Telefonaktiebolaget'l M Ericsson (Publ) · 2009
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999
- Method for frequency division duplex communications526US 5,933,421 AAT&T Wireless Services, Inc. · 1999
- Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays436US 6,128,276 ARadix Wireless, Inc. · 2000
- Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA345US 5,745,837 ATerayon Corporation · 1998