H04L 1/0001
Systems modifying transmission characteristics according to link quality
Official title: {Systems modifying transmission characteristics according to link quality, e.g. power backoff (adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04)}
H04L1/0001 (Systems modifying transmission characteristics according to link quality) appears on 20,822 US grants and 24,480 published applications in this corpus.
Search patents in H04L- Granted patents
- 20,822
- Published applications
- 24,480
- Assignees
- 2,186
- Inventors
- 19,071
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 15 | 0 |
| 1995 | 20 | 0 |
| 1996 | 39 | 0 |
| 1997 | 50 | 0 |
| 1998 | 67 | 0 |
| 1999 | 92 | 0 |
| 2000 | 96 | 0 |
| 2001 | 92 | 68 |
| 2002 | 143 | 357 |
| 2003 | 149 | 449 |
| 2004 | 204 | 545 |
| 2005 | 231 | 569 |
| 2006 | 372 | 559 |
| 2007 | 324 | 643 |
| 2008 | 366 | 677 |
| 2009 | 396 | 863 |
| 2010 | 572 | 901 |
| 2011 | 675 | 798 |
| 2012 | 855 | 909 |
| 2013 | 970 | 1110 |
| 2014 | 1138 | 1087 |
| 2015 | 1190 | 1131 |
| 2016 | 1163 | 1030 |
| 2017 | 1101 | 1047 |
| 2018 | 956 | 1158 |
| 2019 | 1197 | 1592 |
| 2020 | 1337 | 1738 |
| 2021 | 1409 | 1509 |
| 2022 | 1356 | 1505 |
| 2023 | 1260 | 1378 |
| 2024 | 1286 | 1193 |
| 2025 | 1043 | 978 |
| 2026 | 598 | 686 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 1/0023Characterised by the signalling10,191
- H04L 1/0002By adapting the transmission rate8,547
- H04L 1/0009By adapting the channel coding6,277
- H04L 1/0015Characterised by the adaptation strategy3,300
- H04L 1/0006By adapting the transmission format1,950
- H04L 1/0036Arrangements specific to the receiver1,548
- H04L 1/0033Arrangements specific to the transmitter810
- H04L 1/0014By adapting the source coding502
Recent patents
- Modulation rate control for multiplexing6 Oct 2026US 12,756,494 B2QUALCOMM Incorporated
- Communication apparatus and methods for multimedia adaptation in a communication apparatus communicating with a network device in a wireless network via a communication link6 Oct 2026US 12,756,495 B2Mediatek Inc.
- Message fault recovery without retransmission in 5G and 6G6 Oct 2026US 12,756,496 B2
- Uplink control information repetition multiplexing with uplink shared channel communications6 Oct 2026US 12,756,499 B2QUALCOMM Incorporated
- Midamble operation in a wireless local area network6 Oct 2026US 12,756,510 B2Avalon Technology Solutions LLC
- Opportunistic content delivery using delta coding8 Oct 2026US 2026/0312676 A1ViaSat, Inc.
- Successive cancellation list decoding of polar codes8 Oct 2026US 2026/0312716 A1Samsung Electronics Co., Ltd.
- Systems and methods for enhanced bit interleaving schemes8 Oct 2026US 2026/0312717 A1QUALCOMM Incorporated
- Bit to constellation mapping for flexible spectrum integration8 Oct 2026US 2026/0312735 A1QUALCOMM Incorporated
- Self-adaptive waveform design method for unmanned aerial vehicle (uav)-enabled integrated sensing and communication (isac)8 Oct 2026US 2026/0312742 A1University of Electronic Science and Technology of China
Most cited
By later US patents
- System and method for generating signal waveforms in a CDMA cellular telephone system1,721US 5,103,459 AQUALCOMM Incorporated · 1992
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones789US 5,726,984 ANorand Corporation · 1998
- Single sign-on access in an orchestration framework for connected devices695US 8,613,070 B1Citrix Systems, Inc. · 2013
- Methods and systems for a mobile, broadband, routable internet582US 8,060,017 B2Powerwave Cognition, Inc. · 2011