2G (GSM) vs. 6G
Comparing 2 standards across 14 specifications. 14 key differences identified.
2G (Second Generation Cellular) revolutionized mobile communications in 1991 by transitioning from analog 1G to digital TDMA/FDMA. Governed by 3GPP GSM standards, it introduced Subscriber Identity Module (SIM) cards, SMS text messaging, GPRS packet data (up to 114 kbps), and 8PSK-modulated EDGE (up to 384 kbps).
6G (Sixth Generation Cellular) is the future mobile communications standard targeted for commercialization around 2030 under the ITU-R IMT-2030 framework and 3GPP standardization. Envisioned to utilize Sub-Terahertz (100 GHz–1 THz) spectrum, 6G introduces Integrated Sensing and Communication (ISAC), native AI air interfaces, and sub-100 microsecond latency.
Specification Comparison Table
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standardization Body
|
ETSI (European Telecommunications Standards Institute) / 3GPP | — |
|
Commercial Launch Year
|
1991 (Radiolinja Finland) | — |
|
Multiple Access Technology
|
TDMA (Time Division Multiple Access) + FDMA (200 kHz channels) | — |
|
Primary Frequency Bands
|
900 MHz and 1800 MHz (EU/Asia) / 850 MHz and 1900 MHz (US) | — |
|
Basic Circuit-Switched Voice Rate
|
13 kbps (Full Rate Speech Codec) | — |
|
GPRS Packet Data Rate (2.5G)
|
Up to 114 kbps (CS-1 through CS-4 coding) | — |
|
EDGE Data Rate (2.75G)
|
Up to 384 kbps (8PSK modulation) | — |
|
Key Milestone Features
|
SIM Card (Subscriber Identity Module), SMS (Short Message Service), A5/1 encryption | — |
|
Target Standardization / Launch
|
— | 3GPP Rel-21+ (~2028) / Commercial ~2030 |
|
ITU Framework
|
— | ITU-R IMT-2030 |
|
Targeted Spectrum Bands
|
— | Upper Mid-Band (7–24 GHz / FR3) and Sub-THz (100 GHz to 1 THz) |
|
Peak Target Data Rate
|
— | Up to 100 Gbps to 1 Tbps |
|
Air Interface Latency Target
|
— | < 100 µs (microsecond range) |
|
Core Transformative Capabilities
|
— | Integrated Sensing and Communication (ISAC), AI-Native PHY/MAC, Non-Terrestrial Network (NTN) Satellite convergence |