5G eMBB, mMTC, and URLLC: Key Differences Explained

This page explains the differences between 5G eMBB, mMTC, and URLLC, outlining their respective use cases.

• eMBB: Enhanced Mobile Broadband
• mMTC: Massive Machine Type Communication
• URLLC: Ultra Reliability and Low Latency Communication

Introduction to 5G

• 5G, or Fifth Generation Wireless technology, is the latest cellular technology used for voice and data communication.
• It’s similar to previous generations like GSM (2G), CDMA (3G), and LTE/LTE-advanced (4G).
• Defined in 3GPP NR specifications, like 4G (LTE).
• Operates on licensed and unlicensed bands (below 1 GHz, below 6 GHz, and above 6 GHz).
• Initial 5G NR specifications were published in Dec 2017.
• 5G NR (New Radio) supports two modes:
  • Non-standalone: Relies on existing 4G LTE network.
  • Standalone: Operates independently of 4G LTE.
• 5G aims to provide downlink speeds of 20 Gbps and uplink speeds of 10 Gbps.
• eMBB, mMTC, and URLLC are different use cases supported by 5G NR technology.

5G eMBB (Enhanced Mobile Broadband)

eMBB focuses on delivering significantly faster data speeds and higher capacity for mobile broadband applications.

• eMBB stands for Enhanced Mobile Broadband.
• Peak data rate: 10 to 20 Gbps.
• Guaranteed rate: 100Mbps whenever needed.
• Traffic Capacity: Supports 10,000 times more traffic than previous generations.
• Cell Types: Supports both macro and small cells.
• Mobility: Supports high mobility up to 500 Kmph.
• Energy Efficiency: Aims for 100 times better network energy savings.

5G mMTC (Massive Machine Type Communications)

mMTC is designed to connect a massive number of devices, primarily for IoT (Internet of Things) applications.

• mMTC stands for massive Machine Type Communications.
• Device Density: Supports a high density of devices (around 2 x 10^5 in 10^6 /Km^2).
• Range: Supports long-range communication.
• Data Rate: Supports low data rates (about 1 to 100 Kbps).
• Cost: Leverages the benefits of ultra-low-cost M2M (machine-to-machine) communication.
• Battery Life: Offers 10 years of battery life for devices.
• Access: Provides asynchronous access.

5G URLLC (Ultra Reliability and Low Latency Communications)

URLLC is critical for applications requiring extremely reliable and low-latency communication, such as industrial automation and autonomous driving.

• URLLC stands for Ultra Reliability and Low Latency Communications.
• Responsiveness: Provides ultra-responsive connections.
• Air Interface Latency: Offers less than 1 ms air interface latency.
• End-to-End Latency: Offers 5 ms end-to-end latency between UE (user equipment/mobile) and 5G eNB (base station).
• Reliability: Ultra-reliable, with 99.9999% availability.
• Data Rate: Supports low to medium data rates (about 50 kbps to 10 Mbps).
• Mobility: Offers high-speed mobility support.