Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-11212796-B2 · Dec 28, 2021 · US
Code checking, CRC
Code checking, CRC · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04Q2213/13215 |
| Official title | Code checking, CRC |
| Display label | Code checking, CRC |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 4 |
| 2023 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pseudo Channel Hopping in Mesh Networks without Time Synchronization
US-2021044322-A1 · Feb 11, 2021 · US
Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-10912084-B2 · Feb 2, 2021 · US
Control information utilization method and apparatus of terminal in mobile communication system
US-10893470-B2 · Jan 12, 2021 · US
Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-10880887-B2 · Dec 29, 2020 · US
Chirp signal formats and techniques
US-10873904-B2 · Dec 22, 2020 · US
Control transmission soft combining
US-10873424-B2 · Dec 22, 2020 · US
Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-10813093-B2 · Oct 20, 2020 · US
Pseudo Channel Hopping using Scan Dwell Times in Mesh Networks without Time Synchronization
US-2020322001-A1 · Oct 8, 2020 · US
Method for providing path signal overhead in the 64B/66B character stream of an ITU-T metro transport network
US-10797816-B1 · Oct 6, 2020 · US
Cyclic redundancy check for uplink control information on control and data channels
US-10798685-B2 · Oct 6, 2020 · US
Techniques for assisting performance of listen before talk procedures and uplink traffic multiplexing at user equipment
US-10764913-B2 · Sep 1, 2020 · US
Multi-stage segmented downlink control information with reduced overhead
US-2020229005-A1 · Jul 16, 2020 · US
Method and apparatus for transceiving data
US-2020212969-A1 · Jul 2, 2020 · US
Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-2020196307-A1 · Jun 18, 2020 · US
Techniques for communicating on an uplink in a shared radio frequency spectrum band
US-10687330-B2 · Jun 16, 2020 · US
Pseudo channel hopping using scan dwell times in mesh networks without time synchronization
US-10644746-B2 · May 5, 2020 · US
Multi-stage segmented downlink control information with reduced overhead
US-10638337-B2 · Apr 28, 2020 · US
Method and apparatus for transceiving data
US-10601474-B2 · Mar 24, 2020 · US
Chirp signal formats and techniques
US-2019268841-A1 · Aug 29, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04Q2213/13215?
- CPC H04Q2213/13215 is the Cooperative Patent Classification code for “Code checking, CRC.”
- How many patents are filed under CPC H04Q2213/13215 (Code checking, CRC)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC H04Q2213/13215 growing?
- Publication counts under this code: 4 in 2023 vs 2 in 2025 (latest complete years).