High-Speed Packet Access

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Mobile phone and data standards

GSM / UMTS Family

2G GSM GPRS EDGE (EGPRS) HSCSD

3G W-CDMA UMTS (3GSM) FOMA UMTS-TDD TD-CDMA TD-SCDMA HSPA HSDPA HSUPA HSPA+ GAN (UMA)

Pre-4G UMTS Revision 8 LTE HSOPA (Super 3G)

cdmaOne / CDMA2000 Family

2G cdmaOne

3G CDMA2000 EV-DO

Pre-4G UMB

Other Technologies

0G PTT MTS IMTS AMTS OLT MTD Autotel / PALM ARP

1G NMT AMPS / TACS / ETACS Hicap CDPD Mobitex DataTAC

2G iDEN D-AMPS PDC CSD PHS WiDEN

Pre-4G iBurst HIPERMAN WiMAX WiBro (Mobile WiMAX)

Frequency bands SMR Cellular PCS

High-Speed Packet Access (HSPA) is a collection of mobile telephony protocols that extend and improve the performance of existing UMTS protocols. Two standards HSDPA and HSUPA have been established and a further standard HSOPA is being proposed.

Contents 1 Overview 2 High Speed Downlink Packet Access (HSDPA) 3 High Speed Uplink Packet Access (HSUPA) 4 Evolved High Speed Packet Access (Evolved HSPA, HSPA Evolved, HSPA+, I-HSPA,...) 5 High Speed OFDM Packet Access (HSOPA)

[edit] Overview

The two existing standards (HSDPA and HSUPA) in the family provide increased performance by using improved modulation schemes and by refining the protocols by which handsets and base stations communicate. These improvements lead to a better utilization of the existing radio bandwidth provided by UMTS.

[edit] High Speed Downlink Packet Access (HSDPA)

Main article: HSDPA

HSDPA provides improved down-link performance of up to 14.4 Mbit/s theoretically. Existing deployments provide up to 7.2 Mbit/s in down-link. Up-link performance is a maximum of 384 kbit/s.

Service providers such as T-Mobile cap this rate to 1.4 Mbit/s despite the fact that modern 3G handsets are designed to handle speeds of up to 3.6 Mbit/s. Voice calls are usually prioritized over data transfer. Croatian VIPnet network supports the speed of 7.2 Mbit/s in down-link. In South Korea, a nationwide 7.2Mbit/s coverage is now established by SK Telecom and KT.

[edit] High Speed Uplink Packet Access (HSUPA)

Main article: HSUPA

HSUPA provides improved up-link performance of up to 5.76 Mbit/s theoretically. In Singapore, Starhub announced 1.9 Mbit/s HSUPA Service as part of its new MaxMobile plan in 1 Aug 2007 [1]

[edit] Evolved High Speed Packet Access (Evolved HSPA, HSPA Evolved, HSPA+, I-HSPA,...)

Main article: Evolved HSPA

Evolved HSPA is defined in 3GPP release 7 (expected in 2007). It introduces simpler IP centric architecture for the mobile network bypassing most of the legacy equipment and enhances radio data rates.

[edit] High Speed OFDM Packet Access (HSOPA)

Main article: HSOPA

The HSOPA is currently under development, aiming for maximum transfer rates of 100 Mbit/s for the down-link and 50 Mbit/s for the up-link.

v • d • e Internet access methods
Wired:	Dial-up, ISDN, DSL, Cable, Fiber optic, Power-line internet
Wireless:	Wi-Fi, Bluetooth, WiBro, WiMAX, UMTS-TDD, HSPA, EV-DO, Satellite