6G ? Home : www.sharetechnote.com
For now (as of writing this, May 2021), the strongest candidates for 6G spectrum seems to be between 0.3 Thz(300 Ghz) and 1 Ghz. This frequency would be an interesting region which is right above the maximum radio frequency and right below the lowest spectrum of light. But electronics, test equipment etc are not fully prepared for the research in this are for communication purpose and majority of the research on communication in this epctrum is being done in a few spectrums lower than this are as highlighed in the figure below.
Following is the frequency range and the frequency candidate for 6G defined by Hera-X deliverable document.
How much bandwidth we need for 6G ?
The answer to this question would vary depending on many factors like modulation scheme, spectrum efficiency (how many bits can be carried by 1 Hz frequency spectrum).
The rough estimation done by Hera-X is as follows. According to this, even with 64QAM we would need around 20Ghz BW. It would be challenging to achieve this bandwidth in single carrier... so likely to require multiple carrier (carrier aggregation) to achieve this.