H04L 25/0232
By interpolation between sounding signals
Official title: {by interpolation between sounding signals}
H04L25/0232 (By interpolation between sounding signals) appears on 771 US grants and 816 published applications in this corpus.
Search patents in H04L- Granted patents
- 771
- Published applications
- 816
- Assignees
- 301
- Inventors
- 1,532
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 4 |
| 2002 | 8 | 9 |
| 2003 | 12 | 19 |
| 2004 | 5 | 24 |
| 2005 | 9 | 39 |
| 2006 | 18 | 31 |
| 2007 | 26 | 58 |
| 2008 | 37 | 59 |
| 2009 | 30 | 61 |
| 2010 | 41 | 68 |
| 2011 | 58 | 68 |
| 2012 | 74 | 57 |
| 2013 | 90 | 52 |
| 2014 | 86 | 41 |
| 2015 | 56 | 36 |
| 2016 | 43 | 31 |
| 2017 | 34 | 21 |
| 2018 | 21 | 16 |
| 2019 | 21 | 19 |
| 2020 | 22 | 16 |
| 2021 | 15 | 14 |
| 2022 | 7 | 15 |
| 2023 | 12 | 17 |
| 2024 | 12 | 15 |
| 2025 | 15 | 12 |
| 2026 | 4 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reference signal channel estimation5 May 2026US 12,621,190 B2Globalstar L. P.
- Method and device for learning-based channel estimation with data pre-processing10 Mar 2026US 12,574,268 B2Samsung Electronics Co., Ltd.
- Baseband unit, radio unit and methods in a wireless communications networks3 Mar 2026US 12,567,893 B2Telefonaktiebolaget LM Ericsson (publ)
- Ship-centric direct communication system and operation method thereof6 Jan 2026US 12,520,339 B2Korea Institute of Ocean Science & Technology
- Channel estimation, throughput and fairness for multi-user, multipleinput, multiple-output (MU-MIMO) systems through dynamic port allocation23 Dec 2025US 12,506,642 B2Tejas Networks Limited
- Channel estimation method and information processing apparatus3 Sep 2026US 2026/0261455 A1Fujitsu Limited
- Reception of Non-Orthogonal Multiple Access of a Sensing and Communication Signal9 Jul 2026US 2026/0197053 A1Vestel Elektronik Sanayi Ve Ticaret A.S.
- Channel Estimation Method and Communication Apparatus9 Jul 2026US 2026/0197201 A1Huawei Technologies Co., Ltd.
- Reference Signal Sending and Receiving Method and Communication Apparatus9 Jul 2026US 2026/0197216 A1Huawei Technologies Co., Ltd.
- Channel estimation method and apparatus2 Jul 2026US 2026/0189432 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- 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 device for channel estimation, equalization, and interference suppression246US 6,141,393 AMotorola, Inc. · 2000
- Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system227US 6,850,481 B2Nortel Networks Limited · 2005
- Pilot-aided channel estimation for OFDM in wireless systems210US 6,654,429 B1AT&T Corp. · 2003
- Method and apparatus for digitally equalizing a signal in a distributed antenna system207US 8,437,383 B2ADC Telecommunications, Inc. · 2013