H04L 25/0226
Sounding signals per se
Official title: {sounding signals per se}
H04L25/0226 (Sounding signals per se) appears on 2,434 US grants and 2,870 published applications in this corpus.
Search patents in H04L- Granted patents
- 2,434
- Published applications
- 2,870
- Assignees
- 395
- Inventors
- 3,132
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 7 |
| 2002 | 3 | 19 |
| 2003 | 8 | 28 |
| 2004 | 14 | 45 |
| 2005 | 17 | 76 |
| 2006 | 28 | 95 |
| 2007 | 30 | 92 |
| 2008 | 52 | 95 |
| 2009 | 54 | 115 |
| 2010 | 80 | 105 |
| 2011 | 66 | 100 |
| 2012 | 106 | 132 |
| 2013 | 146 | 95 |
| 2014 | 153 | 118 |
| 2015 | 138 | 95 |
| 2016 | 113 | 84 |
| 2017 | 92 | 98 |
| 2018 | 89 | 112 |
| 2019 | 132 | 202 |
| 2020 | 154 | 274 |
| 2021 | 186 | 253 |
| 2022 | 211 | 185 |
| 2023 | 192 | 153 |
| 2024 | 177 | 135 |
| 2025 | 125 | 93 |
| 2026 | 44 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for performing channel estimation for uplink data in NB-IoT physical layer18 Aug 2026US 12,712,764 B2Rakuten Symphony, Inc.
- Channel state information reporting method, channel state information receiving method, communication node, and storage medium11 Aug 2026US 12,706,648 B2Zte Corporation
- Sounding reference signal repetition configuration11 Aug 2026US 12,706,711 B2QUALCOMM Incorporated
- Allocation of channel information transfer enhancing massive MIMO uplink in split RAN deployments4 Aug 2026US 12,700,899 B2AT&T Intellectual Property I, L. P.
- Base station-aided user equipment (UE) antenna selection4 Aug 2026US 12,701,576 B2QUALCOM Incorporated
- Exposure Detection and Reporting For Wireless Communications8 Oct 2026US 2026/0312612 A1Comcast Cable Communications, LLC
- Data and control multiplexing in pusch in wireless networks1 Oct 2026US 2026/0303264 A1Texas Instruments Incorporated
- Reference signal transmission for multiple services1 Oct 2026US 2026/0303288 A1Lenovo (United States) Inc.
- Man-portable passive detection and tracking system1 Oct 2026US 2026/0303413 A1Raytheon Company
- Channel sounding method using single-tone signal with at least one security marker embedded therein and associated wireless communication device1 Oct 2026US 2026/0303414 A1Airoha Technology Corp.
Most cited
By later US patents
- Determination of a channel estimate of a transmission channel991US 7,561,637 B2Telefonaktiebolaget'l M Ericsson (Publ) · 2009
- Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system793US 6,473,467 B1QUALCOMM Incorporated · 2002
- Method and system for communicating information in a digital signal540US 8,599,957 B2EMS Technologies, Inc. · 2013
- Method and system for communicating information in a digital signal503US 8,750,445 B2EMS Technologies, Inc. · 2014
- Multi-carrier communications with group-based subcarrier allocation252US 6,904,283 B2Adaptix, Inc. · 2005