H04L 25/0228
With direct estimation from sounding signals
Official title: {with direct estimation from sounding signals}
H04L25/0228 (With direct estimation from sounding signals) appears on 2,478 US grants and 2,650 published applications in this corpus.
Search patents in H04L- Granted patents
- 2,478
- Published applications
- 2,650
- Assignees
- 599
- Inventors
- 3,878
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 17 | 7 |
| 2002 | 26 | 30 |
| 2003 | 30 | 73 |
| 2004 | 24 | 72 |
| 2005 | 32 | 86 |
| 2006 | 64 | 104 |
| 2007 | 67 | 139 |
| 2008 | 88 | 165 |
| 2009 | 81 | 204 |
| 2010 | 105 | 181 |
| 2011 | 142 | 158 |
| 2012 | 185 | 139 |
| 2013 | 237 | 144 |
| 2014 | 251 | 148 |
| 2015 | 188 | 148 |
| 2016 | 142 | 110 |
| 2017 | 128 | 105 |
| 2018 | 82 | 79 |
| 2019 | 98 | 82 |
| 2020 | 94 | 81 |
| 2021 | 77 | 76 |
| 2022 | 57 | 77 |
| 2023 | 54 | 74 |
| 2024 | 64 | 73 |
| 2025 | 66 | 50 |
| 2026 | 40 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Indication for non-causal demodulation reference signal cross-slot combining6 Oct 2026US 12,756,597 B2QUALCOMM Incorporated
- Channel estimation method and apparatus, device, and readable storage medium1 Sep 2026US 12,726,311 B2Vivo Mobile Communication Co., Ltd.
- Communication method and apparatus25 Aug 2026US 12,719,718 B2Huawei Technologies Co., Ltd.
- Configuration method and apparatus for joint channel estimation, and device and storage medium25 Aug 2026US 12,719,721 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Method and apparatus for determining time-domain window, and user equipment, base station and storage medium25 Aug 2026US 12,720,508 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Approaches for Spatial Beamforming1 Oct 2026US 2026/0303163 A1
- Data and control multiplexing in pusch in wireless networks1 Oct 2026US 2026/0303264 A1Texas Instruments Incorporated
- Method for transmitting/receiving pusch in wireless communication system, and device therefor24 Sep 2026US 2026/0291662 A1LG Electronics Inc.
- Wireless communication device, wireless communication system, communication control method, and non-transitory computer-readable medium17 Sep 2026US 2026/0280942 A1NEC Corporation
- A satellite transmitter10 Sep 2026US 2026/0269930 A1St Engineering Idirect (Europe) Cy NV
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 apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum691US 5,282,222 A1994
- Method and apparatus for utilizing channel state information in a wireless communication system316US 6,771,706 B2QUALCOMM Incorporated · 2004
- Method and apparatus for closed loop data transmission295US 7,139,328 B2Motorola, Inc. · 2006