Evolved HSPA

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Mobile communication standards

GSM / UMTS (3GPP) Family

GSM (2G) GPRS EDGE (EGPRS) EDGE Evolution CSD HSCSD
UMTS (3G) HSPA HSDPA HSUPA HSPA+ UMTS-TDD TD-CDMA TD-SCDMA FOMA
UMTS Rev. 8 (Pre-4G) LTE HSOPA (Super 3G)


cdmaOne / CDMA2000 (3GPP2) Family

cdmaOne (2G)
CDMA2000 (3G) EV-DO
UMB (Pre-4G)


AMPS Family
AMPS (1G) TACS / ETACS
D-AMPS (2G)


Other Technologies
0G PTT MTS IMTS AMTS OLT MTD Autotel / PALM ARP
1G NMT Hicap CDPD Mobitex DataTAC
2G iDEN PDC CSD PHS WiDEN
Pre-4G iBurst HIPERMAN WiMAX WiBro GAN (UMA)


Channel Access Methods FDMA OFDMA TDMA SSMA CDMA


Frequency bands Cellular GSM UMTS PCS SMR

Evolved HSPA (also known as: HSPA Evolution, HSPA+, I-HSPA or Internet HSPA) is a wireless broadband standard defined in 3GPP release 7.

Evolved HSPA provides HSPA data rates up to 42 Mbit/s on the downlink and 22 Mbit/s on the uplink with MIMO technologies and higher order modulation. It also introduces an optional all-IP architecture for the network where base stations are directly connected to the internet. The technology also delivers significant battery life improvements and dramatically quicker wake-from-idle time - delivering a true always-on connection. Evolved HSPA should not be confused with LTE, which uses a new air interface.

Several trials are underway and the first commercial launches have been announced for late 2008.

[edit] Evolved HSPA specifies all-IP architecture

An all-IP architecture is an option within Evolved HSPA. Base stations connect to the network via standard gigabit ethernet connected to the internet. This makes the network faster, cheaper to deploy and operate.

However the legacy architecture is still possible with the Evolved HSPA. This 'flat architecture' communicates 'user plane' IP directly from the base station to the GGSN IP router system, using any available link technology. It is defined in 3GPP TR25.999. User IP data bypasses the Radio Network Controller (RNC) and the SGSN of the previous 3GPP UMTS architecture versions. This is a major step towards the 3GPP Long Term Evolution (LTE) flat architecture as defined in the 3GPP standard Rel-8. You could say that the flat architecture makes the base station into an IP router. It connects to the Internet with cost effective modern IP link layer technologies like Ethernet, and for user plane data it is not tied to the SONET/SDH infrastructure or T1/E1 lines anymore.

Internet HSPA or I-HSPA is Nokia Siemens Networks product concept implementing Evolved HSPA. ^[1]