Tokyo-based IT and network solutions company NEC Corporation has partnered Japanese telecom service provider NTT DOCOMO to carry out a series of active antenna system trials of next generation technologies on some of the cellco’s proto ‘5G’ base transceiver stations (BTS). The two firms are working closely to develop the vendor’s prototype of so-called ‘A4-sized element active antenna system (AAS)’ for 5G small cell BTS. NEC says its AAS combines ‘the antenna and RF components through the use of a newly developed high-density printed circuit board and an IC that integrates the high radio frequency circuit with the digital circuit.’
The 5G announcement is the latest of several to emerge involving DOCOMO in recent days. Yesterday, CommsUpdate reported that Japan’s leading mobile operator by subscribers has entered into a partnership with leading cellular baseband solution provider MediaTek to drive the future development of 5G. The pair intend to collaborate on developing new 5G air interface and chipsets required for 5G devices, raising spectrum efficiency and increasing data capacity. Meanwhile, on 23 February it was revealed that South Korean duo SK Telecom and KT Corp, along with DOCOMO and US-based Verizon, have agreed to form a new global initiative, called the 5G Open Trial Specification Alliance.