H04J 11/0069
Cell search, i.e. determining cell identity [cell-id]
Official title: {Cell search, i.e. determining cell identity [cell-ID] (design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655)}
H04J11/0069 (Cell search, i.e. determining cell identity [cell-id]) appears on 1,991 US grants and 2,267 published applications in this corpus.
Search patents in H04J- Granted patents
- 1,991
- Published applications
- 2,267
- Assignees
- 248
- Inventors
- 2,277
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 4 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 5 |
| 2006 | 1 | 2 |
| 2007 | 3 | 25 |
| 2008 | 4 | 57 |
| 2009 | 3 | 117 |
| 2010 | 16 | 139 |
| 2011 | 53 | 109 |
| 2012 | 92 | 58 |
| 2013 | 104 | 97 |
| 2014 | 107 | 103 |
| 2015 | 110 | 132 |
| 2016 | 143 | 127 |
| 2017 | 121 | 129 |
| 2018 | 107 | 205 |
| 2019 | 187 | 215 |
| 2020 | 220 | 213 |
| 2021 | 180 | 175 |
| 2022 | 161 | 95 |
| 2023 | 152 | 103 |
| 2024 | 122 | 75 |
| 2025 | 64 | 46 |
| 2026 | 35 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04J 11/0073Acquisition of primary synchronisation channel616
- H04J 11/0076Acquisition of secondary synchronisation channel528
- H04J 11/0079Acquisition of downlink reference signals371
- H04J 11/0093Neighbour cell search244
- H04J 11/0086Search parameters187
- H04J 11/0083Multi-mode cell search, i.e. where several modes or systems can be used51
- H04J 11/0089Search hardware arrangements13
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- Method and apparatus for service processing in dual card terminal device17 Sep 2026US 2026/0280742 A1Honor Device Co., Ltd.
- Method and apparatus for cross-link-interference mitigation in mobile communications10 Sep 2026US 2026/0269969 A1MediaTek Singapore Pte. Ltd.
- Mobile communication system10 Sep 2026US 2026/0270850 A1KYOCERA Corporation
- Initial access coexistence with dedicated frequency range 1 spectrum less than 5 megahertz via cell search pruning10 Sep 2026US 2026/0270901 A1Apple Inc.
Most cited
By later US patents
- System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design176US 7,548,506 B2Nortel Networks Limited · 2009
- Wireless mesh network158US 11,206,549 B1Verana Networks, Inc. · 2021
- Network architecture, methods, and devices for a wireless communications network106US 10,367,677 B2Telefonaktiebolaget LM Ericsson (publ) · 2019
- Rach ramp-up acknowledgement87US 6,574,267 B1Golden Bridge Technology, Inc. · 2003
- Physical layer structures and initial access schemes in an unsynchronized communication network86US 7,738,437 B2Nortel Networks Limited · 2010