Q. Consider the following statements regarding the progression of mobile network generations:
1.The transition from 4G LTE to 5G is characterized by a significant reduction in latency, reaching as low as approximately 1 millisecond.
2.5G technology utilizes a combination of Sub-6 GHz bands and millimeter-wave (mmWave) frequencies to achieve high throughput.
3.6G technology is expected to operate in the Terahertz (THz) spectrum, enabling data rates exceeding 100 Gbps and deep AI integration.
How many of the statements given above are correct?
Answer: C
Notes:
Statement-wise Explanation:
- Statement 1 is correct: One of the primary goals of 5G is Ultra-Reliable Low Latency Communication (URLLC). While 4G latency typically ranges from 20–40 ms, 5G aims for a latency of ~1 ms, which is critical for real-time applications like autonomous driving and remote surgery.
- Statement 2 is correct: 5G deployments are diverse. They use the Sub-6 GHz range (for broader coverage) and mmWave bands (above 24 GHz) to provide the massive bandwidth required for high-speed data and IoT connectivity.
- Statement 3 is correct: 6G is the next frontier, designed to use frequencies between 100 GHz and 3 THz. This jump in the electromagnetic spectrum allows for extreme data speeds (100+ Gbps) and supports “Intelligence of Everything” through native AI integration.
| Generation | Latency | Spectrum Frequency | Key Shift |
| 4G | 20-40 ms | Low (MHz/Lower GHz) | Data & Voice (VoLTE) |
| 5G | ~1 ms | Medium to High (up to 40 GHz) | IoT & Low Latency |
| 6G | < 1 ms | Ultra-High (Terahertz) | AI & Massive Connectivity |
