H04L 25/023
With extension to other symbols
Official title: {with extension to other symbols}
H04L25/023 (With extension to other symbols) appears on 1,192 US grants and 1,236 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,192
- Published applications
- 1,236
- Assignees
- 395
- Inventors
- 2,160
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 10 | 5 |
| 2002 | 15 | 16 |
| 2003 | 16 | 35 |
| 2004 | 10 | 44 |
| 2005 | 19 | 56 |
| 2006 | 38 | 53 |
| 2007 | 38 | 77 |
| 2008 | 53 | 85 |
| 2009 | 45 | 93 |
| 2010 | 60 | 90 |
| 2011 | 77 | 84 |
| 2012 | 98 | 71 |
| 2013 | 128 | 72 |
| 2014 | 132 | 76 |
| 2015 | 89 | 57 |
| 2016 | 66 | 48 |
| 2017 | 50 | 37 |
| 2018 | 33 | 29 |
| 2019 | 35 | 34 |
| 2020 | 34 | 26 |
| 2021 | 29 | 25 |
| 2022 | 13 | 27 |
| 2023 | 22 | 23 |
| 2024 | 19 | 27 |
| 2025 | 26 | 23 |
| 2026 | 10 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Channel estimation method and apparatus, device, and readable storage medium1 Sep 2026US 12,726,311 B2Vivo Mobile Communication Co., Ltd.
- Mobile terminal and base station involved in downlink channel operations including radio channel estimation based on demodulation reference signal14 Jul 2026US 12,683,832 B2Panasonic Intellectual Property Corporation of America
- Receiver for and method of receiving symbols over time varying channels with doppler spread12 May 2026US 12,627,548 B2Continental Automotive Technologies GmbH
- 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.
- Channel estimation method and information processing apparatus3 Sep 2026US 2026/0261455 A1Fujitsu Limited
- Channel prediction to combat channel-aging with low complexity13 Aug 2026US 2026/0238520 A1NEC Corporation
- Transmitting data to a network node, and receiving data from a network node using grassmann constellations6 Aug 2026US 2026/0230367 A1Telefonaktiebolaget LM Ericsson (publ)
- 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.
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 apparatus for closed loop data transmission295US 7,139,328 B2Motorola, Inc. · 2006
- 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