UMTS (3G) vs. WLAN: A Detailed Comparison

This article highlights the differences between UMTS (3G) and WLAN. You’ll also find links to further resources comparing various technologies.

UMTS (3G) - Universal Mobile Telecommunication System

The initial UMTS deployment followed the R99 architecture.

• Architecture: UMTS architecture generally consists of the UE (User Equipment), UTRAN (UMTS Terrestrial Radio Access Network, which includes Node B and RNC), and CN (Core Network).
• Evolution: 3GPP has standardized and published various UMTS releases with feature enhancements over time.
• Design Goal: UMTS was designed to handle both voice communications and high-speed data internet access.
• RNC Role: The Radio Network Controller (RNC) manages the utilization and reliability of radio resources. The RNC is similar to the BSC (Base Station Controller) in GSM, and Node B is analogous to the BTS (Base Transceiver Station) in GSM.

WLAN - Wireless Local Area Network

WLAN was originally conceived to provide wireless connectivity within a LAN (Local Area Network).

• Concept: A traditional LAN with added wireless capabilities constitutes a WLAN.
• Popularity: WLAN has gained widespread adoption in homes, offices, public areas, and college campuses due to its support for wireless communication.
• Mobility: WLAN offers limited mobility while maintaining an internet connection.
• Spectrum: WLAN operates in the unlicensed ISM (Industrial, Scientific, and Medical) band.
• Standards: The IEEE 802.11 family of standards governs the development of WLAN products.

UMTS vs. WLAN: A Detailed Comparison