H04L 27/2607
Cyclic extensions
Official title: {Cyclic extensions}
H04L27/2607 (Cyclic extensions) appears on 2,427 US grants and 2,925 published applications in this corpus.
Search patents in H04L- Granted patents
- 2,427
- Published applications
- 2,925
- Assignees
- 410
- Inventors
- 3,180
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 6 |
| 2002 | 4 | 6 |
| 2003 | 8 | 13 |
| 2004 | 3 | 29 |
| 2005 | 9 | 31 |
| 2006 | 11 | 41 |
| 2007 | 15 | 38 |
| 2008 | 21 | 48 |
| 2009 | 32 | 73 |
| 2010 | 33 | 64 |
| 2011 | 54 | 95 |
| 2012 | 72 | 75 |
| 2013 | 97 | 64 |
| 2014 | 93 | 70 |
| 2015 | 91 | 103 |
| 2016 | 84 | 117 |
| 2017 | 103 | 138 |
| 2018 | 105 | 132 |
| 2019 | 149 | 325 |
| 2020 | 238 | 297 |
| 2021 | 231 | 286 |
| 2022 | 255 | 277 |
| 2023 | 286 | 189 |
| 2024 | 219 | 127 |
| 2025 | 149 | 161 |
| 2026 | 51 | 120 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cyclic shift diversity-based communication method, apparatus, and system6 Oct 2026US 12,756,431 B2Huawei Technologies Co., Ltd.
- Signal transmission method and signal reception method of heterogeneous systems sharing frequency band6 Oct 2026US 12,756,613 B2Electronics and Telecommunications Research Institute
- Sidelink unlicensed (SL-U) gap symbol and cyclic prefix extension (CPE) configuration6 Oct 2026US 12,757,248 B2Apple Inc.
- Guard band reporting for a full duplex (FD) slot15 Sep 2026US 12,739,681 B2QUALCOMM Incorporated
- Device-controlled adaptive delay diversity15 Sep 2026US 12,739,765 B2Motorola Mobility LLC
- Joint communication and sensing8 Oct 2026US 2026/0309836 A1Telefonaktiebolaget LM Ericsson (publ)
- Device and method for using one piece of downlink conrol information in order to schedule plurality of serving cells in wireless communication system24 Sep 2026US 2026/0291558 A1LG Electronics Inc.
- Symbol processing method, communication apparatus, and communication system24 Sep 2026US 2026/0291793 A1Huawei Technologies Co., Ltd.
- Artificial Intelligence-Based Discontinuous Transmission Detection24 Sep 2026US 2026/0292922 A1Dell Products L. P.
- Processing device, network node, client device, and methods thereof17 Sep 2026US 2026/0280601 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Methods and apparatus for WLAN transmission198US 8,724,720 B2Marvell World Trade Ltd. · 2014
- System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design176US 7,548,506 B2Nortel Networks Limited · 2009
- Systems and methods for high rate OFDM communications149US 7,522,514 B2Aware, Inc. · 2009
- Signal transmitting apparatus and signal receiving apparatus using orthogonal frequency division multiplexing143US 5,732,068 AVictor Company of Japan, Ltd. · 1998
- Signal construction, detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system141US 6,922,388 B1Lucent Technologies Inc. · 2005