Chipmaker MediaTek and networking and telecommunications company Ericsson performed interoperability tests to prepare for the rollout of 5G standalone (SA) networks.
MediaTek and Ericsson have also demonstrated a 5G frequency range 1 (FR1) connection with TDD+TDD CA, focusing on sub-6GHz CA. The test, conducted in Ericsson’s lab in Beijing, reached close to 2.66Gbps speeds with 7:3 TDD patterns on 200MHz total aggregated bandwidth. The test included different channel bandwidth configurations, showcasing the flexibility and scalability of the Dimensity 1000+ to support different spectrum holdings for carriers worldwide.
The tests were conducted in lab settings with a MediaTek Dimensity 1000+ commercial chipset and an Ericsson AIR 6488 5G radio using 5G NR commercial software and Ericsson’s dual-mode 5G Cloud Core solution. The implementation is fully compliant with 3GPP’s Release 15 specifications for 5G.
The two companies were the first to successfully complete all three combinations of new radio (NR) time division duplex (TDD) and frequency division duplex (FDD) carrier aggregation (CA) on a single MediaTek Dimensity 5G chipset. The combinations included CA of TDD+TDD, FDD+TDD and FDD+FDD. The companies established the 5G SA data call by aggregating 20MHz on FDD spectrum and 100MHz on TDD spectrum with MediaTek’s Dimensity 1000+ chipset at the Ericsson Lab in Kista.
The companies have also conducted FDD bands (sub-2.6GHz) CA tests on two carrier components of 20MHz for both non-standalone (NSA) and SA networks. This type of CA technology will allow communication service providers to deploy 5G more widely, offering downlink speeds of over 400Mbps in nationwide coverage by aggregating FDD spectrum assets.
The combination of NR FDD sub-2.6GHz and NR TDD sub-6GHz provides benefits for both coverage and capacity enhancements. The tests showcased how seamlessly aggregating 5G connections can provide users with over 30 percent greater throughput on average and enable service providers to more efficiently manage 5G capacity.