High speed packet access

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High Speed ​​Packet Access ( HSPA ) is an extension of the UMTS cellular standard that enables higher data transmission rates . It is divided into HSDPA for increasing the data transmission rate of the downlink and HSUPA for the uplink .

The backwards-compatible standard HSPA + was introduced around 2011 , which enables improvements through a series of extensions. It has been part of the 3GPP specifications since Release 7. According to HSPA + Release 10 , downstream speeds of up to 168 Mbit / s are planned. HSPA + speeds of up to 42 Mbit / s are currently available in some German, Austrian and Swiss mobile phone networks (as of October 2015). The aim was to improve performance, ie spectral efficiency , maximum data transmission rates and delay times.

features

The main features of HSPA + in 3GPP Release 7 are:

The main features of HSPA + in 3GPP Release 8 are:

  • the combination of MIMO and 64QAM
  • CS over HSPA
  • Dual Cell HSDPA
  • improved Layer 2 support for higher uplink rates
  • improved CELL_FACH status for the uplink

Web links

Individual evidence

  1. http://www.3gpp.org/HSPA
  2. HSPA + / HSPA Evolution , Electronics Compendium