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What is HSDPA/HSUPA?
High Speed Downlink Packet Access (HSDPA), sometimes referred to as a 3.5G technology provides an evolutionary path for UMTS networks. As an evolution of the W-CDMA standard, it is designed to provide downlink speeds up to 14.4Mbps. Uplink speeds are also increased to a possible 384 kbps versus 128kbps with UMTS. Reduced latency is a another key benefit, helping to improve round trip time for applications.

High Speed Uplink Packet Access (HSUPA), is also a 3.5G technology. It will provide data upload speeds up to 5.76Mbps.

What is UMTS/WCDMA?
Universal Mobile Telecommunications System (UMTS) -- also known as Wideband Code Division Multiple Access (W-CDMA) -- is an international 3G standard established by the International Telecommunications Union (ITU). It is an advanced and efficient wireless technology being introduced worldwide that uses DSSS, and both Frequency Division (FDD) and Time Division Duplexing (TDD), depending on the frequency assignment.

As a spread-spectrum technology, UMTS is designed to support the 3G evolution needs of Global System for Mobile Communications (GSM), and other, wireless network operators. GSM, the most widely used cellular access technology with over one billion users, is available worldwide.

Peak data rates of up to 384 kbps can be achieved depending upon use and the network construction. UMTS radio technology is an evolution of CDMA technology first introduced to the market in the mid 1990’s. UMTS/WCDMA is under the auspices of the 3GPP, the Third Generation Partnership Program, a consortium of 437 operators and vendors worldwide.

Features	Benefits
Speed	Uplink speed to 384 kbps on UMTS, 53.6 on GPRS, and 14.4 on GSM
Bands	Asia & Europe: UMTS: 2100 MHz GSM/GPRS: 900 & 1800 MHz North America: UMTS: 800 & 1900 MHz GSM/GPRS: 800 & 1900 MHz
Applications	Access to email, the Internet, corporate databases, fax, voice, two-way short message service (SMS), multimedia messaging service (MMS), Images, video, sound, music, data intensive attachments, web broadcasts, and video conferencing
Global Access	UMTS is fully backward compatible with GSM and GPRS networks. Customers can roam between 195 countries on over 500 GSM, GPRS and UMTS networks worldwide providing access virtually anywhere worldwide. Users can move between GSM, GPRS and UMTS coverage areas without dropping connections or losing access to their network.
Always On Connectivity	Users are always connected, always on-line. Once a connection has been made, information can be sent and received without delay.
Security	Extensive authentication and encryption algorithms make it virtually impossible for unauthorized users to capture and decipher messages. The UMTS Subscriber Identity Module (USIM) card stores authentication information and security data to enable applications such as mobile banking, prepaid service activation and control, directory services and information services.

Benefits to users
Global Coverage	Increase productivity and stay connected to customers and colleagues while they are working away from their office
Speeds up to 384kbps	Enables wireless broadband data access to email, the Internet, corporate networks, high quality web broadcasts, streaming video and audio, and rapid downloads of large attachments.
Dial Up and ISDN Alternative	Gives customers more choices
LAN vs. WAN	While WiFi gives "hot spot" coverage and WiMAX extends this coverage as a broadband wireless access solution to metropolitan area networks, 3G/UMTS offers wide area coverage with full mobility, integral security and automatic roaming to meet the needs of business users and consumers alike

Benefits to Operators
60% fewer sites for the voice; 40% fewer for data access	Improved network efficiency and higher capacity
Data speeds up to 384 kbps - UMTS	Enhance competitive position by offering customers cost effective wireless broadband alternative to Dial Up, ISDN and areas without DSL coverage.
Cost of only 1 - 1.5 times GSM	Ten times the traffic capacity compared to GSM
3GPP Compliant	Compatibility with a variety of carriers and equipment manufacturers is virtually guaranteed
Compatible to GSM/GPRS	UMTS builds on existing investments in GSM with over 1 billion users globally used by more than 70 percent of the world's wireless customers. Easier to deploy international roaming with GSM/GPRS/UMTS networks internationally
Rapid UMTS expansion	3G/UMTS networks are already deployed by more than 30 operators in almost 20 countries with dozens more in trial or pre-launch
Application Development	Provides new opportunities for wireless developers to bring new applications to market more quickly

Availability
Globally	UMTS Coverage

For More Information: UMTS Forum