Mobile network operator (MNO) Vodafone Czech Republic has reportedly tested 4.5G technology, based on carrier aggregation (CA) technology in the 800MHz, 1800MHz, 2100MHz and 2600MHz bands, according to Telecompaper which does not cite its source. It is understood that the MNO’s trials will use 10MHz of bandwidth in the 800MHz band, as well as 20MHz blocks in each of the other bands. CA will comprise 4×4 MIMO and a 256 QAM modulation to allow a maximum theoretical speed of up to 1.4Gbps, it says. During laboratory testing, Vodafone reached transfer speeds of 1.2Gbps over the LTE-Advanced Pro (LTE-A Pro) network, also referred to as 4.5G. Devices supporting the technology are expected to appear on the market in 2017.
In addition, the operator is reportedly testing and implementing CA for LTE-A uplink, combining 800MHz and 1800MHz in parts of Prague and Karlovy Vary.