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5G

What is 5G?

5G stands for the 5th Generation Mobile Networks, which can reach a peak transmission rate of 10Gbps which previously reached by fiber optics cable but now easily reached by 5G wireless technology.

3 Usage Scenario of 5G by ITU

Enhanced Mobile Broadband (eMBB) high speed, up to 10Gbps peak transmission, which is 100 times the 4G rate of 100Mbps.Ultra-Reliable and Low Latency Communications (uRLLC) with 50ms for 4G and 1ms for 5G.Massive Machine Type Communication (mMTC), which can interconnect 1 million devices per square kilometer, which is 500 times more than 4G's 2,000 devices per square kilometer.

5G consists of 2 phases and 2 bands

The first phase (Phase 1) will be commercialized from 2019, using the 3.5GHz band (commonly known as Sub-6 band), with a maximum transmission rate of 1Gbps. The second phase (Phase 2) will be commercialized from 2022, using the frequency band of 28GHz (commonly known as mm wave), with a maximum transmission rate of 10Gbps.

What is millimeter wave (Minimeter Wave)

It is the wavelength of mobile communication radio waves according to the physical formula:
Wavelength = Wavelength × Frequency
Wavelength = wavelength ÷ frequency
As mentioned above, the wavelength of the first phase (phase 1) 3.5GHZ = (3 x 108m) ÷ (3.5 × 109 Hz) = 0.085 m = 85 mm
And the wavelength of the second phase (phase 2) 28Ghz = (3 x 108m) ÷ (28 × 109 Hz) = 0.011 m = 11 mm