Sunday, August 30, 2020

What is Sub-6 GHz and mmWave Spectrum? Sub-6 GHz vs mmWave? 5G in India?

5G is fifth-generation cellular wireless, succeeding the 4G LTE networks that we have been connecting .


In 5G technology, two kinds of frequency bands are classified. First are Sub-6 GHz bands where the frequency transmitted from cell phone towers are less than 6GHz frequency. This is very similar to 4G, where the frequencies transmitted from cell phone towers are below 6GHz. 

On the other hand, the higher speeds that really set 5G apart from any of the 4G LTE flavors require mmWave (millimeter wave, above 24GHz) high-frequency bands. These high frequencies have very large bandwidths, so they are ideal for keeping everyone connected in busy environments like stadiums. 

So, in 5G, these two types of frequency ranges have been defined as: 

  • Frequency Range-1 (Sub-6 GHz, less than 6GHz)
  • Frequency Range-2 (mmWave, above 24GHz)

A sub-6 band, 5G technology will be able to cover a larger geographical area for 5G coverage but will not be able to provide higher speed downlink. But an mmWave 5G technology will be able to provide class leading downlink speeds, but at the cost of less geographical area coverage. Now you know the difference and will be able to understand the network strategy of your carrier when you decide to switch over to 5G.




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