South Korean operator SK Telecom and Samsung Electronics have completed the network device interoperability test applying Dual Connectivity technology using both 4G and 5G networks provided by Samsung’s Networks Business. It is also known as ‘E-UTRAN New Radio Dual Connectivity (EN-DC)’ based on the 3GPP 5G New Radio (NR) standard. During the test, the companies report hey have achieved 2.65Gbps in data speeds on the 5G smartphone, combining both 1.5Gbps in 5G using 3.5GHz frequency (100MHz bandwidth) with 1.15Gbps in LTE using 1.8GHz, 2.1GHz, and 2.6GHz frequencies (65MHz bandwidth) all of which are for commercial use by SK Telecom.
The test, carried out at Samsung Electronics located in Suwon, South Korea, used Samsung’s commercial 4G and 5G NR network services which have been provided to the operator’s current service. In addition, companies used Samsung’s virtual core (vCore) that supports simultaneous 4G and 5G as well as its Galaxy S10 5G, Samsung’s first 5G smartphone which was unveiled last month.
SK Telecom expects to be able to boost the overall transmission data speed by 80 percent using the 4G and 5G dual connectivity.