In many countries of the world has not even begun to deploy LTE, while European carriers Vodafone, Telefonica and EE has already begun testing the LTE-Advanced, with the help of this technology, they plan to provide customers with wireless access at speeds of over 200 MBps. In early November 2013 EE launched a test for LTE-Advanced network in London Tech City (London, UK), and last week Vodafone and Telefonica announced the availability of ultra-fast network in Dresden and Munich (Germany).
To increase the speed of the carrier using the aggregation: multiple channels on the same or different frequencies are considered as one that allows the network to allocate more resources to individual users. EE uses two channels of 20MHz to achieve a rate of 300Mbps, Vodafone and Telefonica uses two channels of 10MHz and a 20MHz which bandwidth reaches 225Mbps. In addition, in areas with sparse due to aggregation can improve the quality of communication and its stability, even at lower speeds.
As pointed out by operators, commercial deployment of LTE-Advanced hinders the lack of equipment: EE in the test network using LTE-Advanced Huawei router (which provides high-speed connectivity to twenty 802.11ac devices), but this is the first device of its class. According to forecasts, the new generation routers and and smartphones will arrive on the market in the middle of 2014.
Meanwhile EE expects the first commercially available routers will be introduced by the middle of next year, with smartphones arriving in the second half of the year. EE also plans to launch commercial services in 2014. In June, SK Telecom launched carrier aggregation with an updated version the Galaxy S4 smartphone from Samsung Electronics. The South Korean operator’s network offers up to 150Mbps by combining two 10MHz channels. That speed can also be achieved with 20MHz of continuous spectrum in one band, which is kinder on smartphone and tablet batteries.
The lack of terminals compatible with the higher speeds means some operators that can offer 150Mbps without carrier aggregation are taking a more cautious approach.
Photo Credit: Siondonsen Linda