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3G and UMTS Technology Mobile data communications is evolving quickly because of Internet, Intranet, Laptops, PDAs and increased requirements of workforce mobility. 3G UMTS will be the commercial convergence of fixed line telephony, mobile, Internet and computer technology. New technologies are required to deliver high speed location and mobile terminal specific content to users.
1. System Information (BCCH) The UE reads the System Information that is broadcast on BCCH. The information is not read continuously.
Navigation:: Home >> Cellular telecoms >> this page - a tutorial or overview of the basics of 3G HSPA, High Speed Packet Access, the combination of HSDPA and HSUPA used with UMTS networks. 3G UMTS HSPA tutorial includes: • What's HSPA :: Introduction • HSDPA tutorial • HSDPA channels • HSDPA categories / data rates • HSUPA tutorial • HSUPA categories & data rates • HSUPA channels • Evolved HSPA / HSPA+ • Evolved HSPA MIMO • Dual Carrier HSPA, DC-HSPA 3G HSPA of High Speed packet Access is the combination of two technologies, one of the downlink and the other for the uplink that can be built onto the existing 3G UMTS or W-CDMA technology to provide increased data transfer speeds. The original 3G UMTS / W-CDMA standard provided a maximum download speed of 384 kbps.
UMTS is the wireless network technology behind the rollout of Third Generation (3G) mobile telecoms networks which will bring video, music and internet services to the cellphone and a range of electronic products. Chris Braithwaite and Mike Scott use their extensive experience of training engineers across Europe, and their backgrounds in working with Nokia, Ericsson and Orange to deliver a uniquely practical guide written from the perspective of the engineer and network planner. This guide is a valuable addition to the literature on UMTS which to date has been dominated by theoretical and reference works.
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Wideband Code Division Multiple Access (WCDMA) is the physical layer used for Universal Terrestrial Radio Access (UTRA) FDD mode. The WCDMA technology provides the UMTS system some of the new functionalities on the air interface. The main features provided by WCDMA physical layer are: Spreading and Scrambling Transport Channel Combining Soft Handover