Relay communication system
US-10659141-B2 · May 19, 2020 · US
Frequency-division multiple access {[FDMA]}
Frequency-division multiple access {[FDMA]} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04B7/208 |
| Official title | Frequency-division multiple access {[FDMA]} |
| Display label | Frequency-division multiple access {[FDMA]} |
| Total patents | 80 |
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 | 13 |
| 2016 | 11 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 13 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-channel communications system using mobile airborne platforms
US-2019363784-A1 · Nov 28, 2019 · US
Communication apparatus and method for unmanned aerial vehicle
US-10437246-B2 · Oct 8, 2019 · US
Communication apparatus and method for unmanned aerial vehicle
US-10439790-B2 · Oct 8, 2019 · US
User equipment transmission management for dynamically varying transmission emission requirements
US-2019261290-A1 · Aug 22, 2019 · US
Retro-directive antenna systems for multi-channel communications
US-10361775-B2 · Jul 23, 2019 · US
Relay communication system
US-2019215056-A1 · Jul 11, 2019 · US
Methods and devices for reduction of cubic metric in a concatenated block reference signal design
US-10341151-B2 · Jul 2, 2019 · US
User equipment management limiting transmit output power in protection zones
US-10299225-B2 · May 21, 2019 · US
Relay communication system
US-10277304-B2 · Apr 30, 2019 · US
Pilot signal in an FDMA communication system
US-10250346-B2 · Apr 2, 2019 · US
Signal booster with spectrally adjacent bands
US-2019089452-A1 · Mar 21, 2019 · US
Communication apparatus and method for unmanned aerial vehicle
US-2019074956-A1 · Mar 7, 2019 · US
Method for correcting an error in the frequency generation by a terminal of a wireless communication system
US-2019052497-A1 · Feb 14, 2019 · US
Communication apparatus and method for unmanned aerial vehicle
US-2018299881-A1 · Oct 18, 2018 · US
Data transmission in synchronization slots
US-2018254796-A1 · Sep 6, 2018 · US
Frequency-sharing radio communication system and satellite terminal
US-2018183511-A1 · Jun 28, 2018 · US
Method and apparatus for determining transport block size in wireless communication system
US-9974097-B2 · May 15, 2018 · US
User equipment transmission management for dynamically varying transmission emission requirements
US-2018098292-A1 · Apr 5, 2018 · US
Method and apparatus of transmitting data in multiple RF system
US-9900139-B2 · Feb 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04B7/208?
- CPC H04B7/208 is the Cooperative Patent Classification code for “Frequency-division multiple access {[FDMA]}.”
- How many patents are filed under CPC H04B7/208 (Frequency-division multiple access {[FDMA]})?
- Our database includes 80 publications tagged with this CPC code.
- Is patent activity under CPC H04B7/208 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).