H04W 56/007
Open loop measurement
Official title: {Open loop measurement}
H04W56/007 (Open loop measurement) appears on 447 US grants and 418 published applications in this corpus.
Search patents in H04W- Granted patents
- 447
- Published applications
- 418
- Assignees
- 201
- Inventors
- 980
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 5 |
| 2002 | 12 | 15 |
| 2003 | 11 | 9 |
| 2004 | 16 | 19 |
| 2005 | 11 | 13 |
| 2006 | 11 | 10 |
| 2007 | 13 | 17 |
| 2008 | 13 | 22 |
| 2009 | 13 | 22 |
| 2010 | 19 | 24 |
| 2011 | 18 | 14 |
| 2012 | 20 | 25 |
| 2013 | 27 | 24 |
| 2014 | 23 | 17 |
| 2015 | 22 | 23 |
| 2016 | 27 | 13 |
| 2017 | 14 | 14 |
| 2018 | 9 | 26 |
| 2019 | 20 | 11 |
| 2020 | 17 | 17 |
| 2021 | 17 | 23 |
| 2022 | 14 | 13 |
| 2023 | 19 | 13 |
| 2024 | 18 | 20 |
| 2025 | 9 | 7 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gradual timing adjustment for wireless devices in a non-terrestrial network6 Oct 2026US 12,757,144 B2Apple Inc.
- Method for reporting uplink timing advance, and apparatus therefor30 Jun 2026US 12,672,084 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Systems and methods path asymmetry correction for precise time transfer and ranging systems19 May 2026US 12,634,109 B2The MITRE Corporation
- Open-loop distributed beamforming for multiple destinations24 Mar 2026US 12,587,985 B2TrellisWare Technologies, Inc.
- Gradual frequency adjustment for dual-loop frequency control in non-terrestrial network10 Mar 2026US 12,574,879 B2QUALCOMM Incorporated
- Systems and methods path asymmetry correction for precise time transfer and ranging systems27 Aug 2026US 2026/0254608 A1The MITRE Corporation
- Method and apparatus for generating/transmitting a frame for wireless communication, and synchronization estimation method for wireless communication5 Feb 2026US 2026/0039528 A1Electronics and Telecommunications Research Institute
- System for Correcting Clock Skew Between Device for Accurate Estimation of One-Way Delays14 Aug 2025US 2025/0261146 A1Google Inc.
- Solutions to timing reference for detection and report of ul rsat asynch nodes or nodes without a time frame structure17 Jul 2025US 2025/0234316 A1Huawei Technologies Co., Ltd.
- Receiver for high precision synchronization10 Jul 2025US 2025/0226965 A1Roku, Inc.
Most cited
By later US patents
- Vehicle tracking, communication and fleet management system700US 6,611,755 B1Trimble Navigation Limited · 2003
- Vehicle tracking, communication and fleet management system268US 6,892,131 B2Trimble Navigation Limited · 2005
- Apparatus and method for estimating the time of arrival of a spread spectrum signal in a wireless communication system224US 6,785,321 B1Motorola, Inc. · 2004
- Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system151US 6,222,832 B1Tantivy Communications, Inc. · 2001
- Medium access control scheme for data transmission on code division multiple access (CDMA) wireless systems149US 5,828,662 ANorthern Telecom Limited · 1998