H04L 27/2602
Signal structure
Official title: {Signal structure}
H04L27/2602 (Signal structure) appears on 12,962 US grants and 15,974 published applications in this corpus.
Search patents in H04L- Granted patents
- 12,962
- Published applications
- 15,974
- Assignees
- 1,183
- Inventors
- 9,130
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 11 | 0 |
| 1997 | 17 | 0 |
| 1998 | 24 | 0 |
| 1999 | 23 | 0 |
| 2000 | 33 | 0 |
| 2001 | 33 | 19 |
| 2002 | 42 | 79 |
| 2003 | 43 | 72 |
| 2004 | 35 | 143 |
| 2005 | 62 | 243 |
| 2006 | 105 | 283 |
| 2007 | 119 | 322 |
| 2008 | 149 | 377 |
| 2009 | 167 | 447 |
| 2010 | 285 | 402 |
| 2011 | 326 | 414 |
| 2012 | 425 | 398 |
| 2013 | 485 | 419 |
| 2014 | 555 | 460 |
| 2015 | 526 | 583 |
| 2016 | 542 | 627 |
| 2017 | 572 | 727 |
| 2018 | 597 | 834 |
| 2019 | 845 | 1251 |
| 2020 | 1070 | 1351 |
| 2021 | 1089 | 1280 |
| 2022 | 1063 | 1286 |
| 2023 | 1112 | 1178 |
| 2024 | 1157 | 1005 |
| 2025 | 970 | 976 |
| 2026 | 454 | 798 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 27/261Details of reference signals6,451
- H04L 27/2605Symbol extensions3,315
- H04L 27/26025Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, fourier2,096
- H04L 27/2603Signal structure ensuring backward compatibility with legacy system998
- H04L 27/26035Maintenance of orthogonality404
- H04L 27/2604Multiresolution systems202
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Most cited
By later US patents
- Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines879US 5,479,447 AThe Board of Trustees of the Leland Stanford Junior University · 1995
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Timing and frequency synchronization of OFDM signals425US 5,732,113 AStanford University · 1998
- Ultrawide-band communication system and method382US 5,677,927 APulson Communications Corporation · 1997
- Wideband communication intercept and direction finding device using hyperchannelization299US 6,898,235 B1Argon ST, Inc. · 2005