Exploring the 6G Spectrum Landscape
白皮书
In each generation of cellular communications, new spectrum has been key to delivering more services, more capacity, and higher data throughput to end users. 5G benefited from large contiguous bandwidths of millimeter-wave (mmWave) spectrum, known as frequency range 2 (FR2). And 5G benefited from the reallocation and unlocking of midband spectrum (3.4 to 4.9 GHz) with its more favorable propagation characteristics. The spectrum that will be available for 6G is unclear, but three frequency ranges are under discussion, including the upper midband (sometimes called midband or, unofficially, FR3) from 7 to 24 GHz and sub-terahertz bands from roughly 90 to 300 GHz. The third range involves maximizing spectrum below 7 GHz through refarming, new band allocation, and increased spectral efficiency.