HSPA refers to High Speed Packet Access, while HSPA+ is the evolved version, enhancing data rates up to 168 megabits/s for downlink and 22 megabits/s for uplink to mobile devices. Using the MIMO technology, of multiple-input and multiple-output and high rates of modulation, of bringing together various cells into one using the technique known as Dual Cell HSDPA, high speed transmission rates are achieved.
The peak rates of 169 megabits/s and 22 megabits/s are only achieved theoretically, the users will find that the rates are much lower. This is because HSPA+ provides peak rates only in excellent working conditions for the radio signals, which means it should be located very proximate to the cell towers or both the network and terminal should be supporting MIMO or Dual Cell HSDPA, which in fact make use of 2 parallel channels for transmission using various technical parameters.
It is therefore clear that higher rates of speed are possible only with Dual Cell HSDPA and MIMO are put into use simultaneously. This technology offers improved life for the batteries, and very fast wake from idle time connection. It should be noted that there is a distinction between LTE and HSPA+, since the latter uses a fresh interface of OFDMA platforms, whereas HSPA+ is an evolved technology of HSPA, upgrading the present 3G networking.
This enables the operators of telecom services to easily switch over to 4G speed without the need of installing fresh radio interfaces. HSPA+ has been widely put into use in many countries. It was first enabled by the Telstra Next G network in Australia in 2008, while in the same year the initial data instruments using wireless services were identified.
Mobile devices offered by Ericsson and Telstra can give you peak downloads of 21 megabits/s using Telstra’s Next G network. This technology has been implemented and is currently being used in various parts of the world.