Why is the C band more suitable for 5G?

The C-band has long been considered the preferred spectrum range for commercial 5G. According to some research reports, the recent 5G test research conducted by commercial organizations tends to be higher frequency band than C band, which involves 1GHz-100GHz illuminated, unlicensed band and spectrum sharing.

"In the long run, the entire width of the 1GHz sub-band to 100GHz spectrum is the key to solving 5G application problems in various scenarios. However, in the short term, due to technical challenges, spectrum applications are not universal enough, 2019 to Millimeter waves will be used for 5G services or restricted in 2020," ABI senior analyst Prayerna Raina said in an interview.

At present, mobile communication services use bands below 6 GHz, so the use of high frequency for mobile broadband is still a strange field for mobile operators. Similarly, 5G antennas and base station technologies such as MIMO are currently deployed in the 6 GHz subband range, which is generally less demanding on antenna components. In the millimeter wave frequency range, hundreds of components of a large-scale MIMO antenna will bring a series of technical challenges.

Although the 26 GHz and 28 GHz high bands have been identified for use in fixed mobile broadband services in 5G networks, only the globally harmonized C-band has the opportunity to achieve large-scale deployment.