DOCOMO, Fujitsu and NEC Achieve World's First Carrier Aggregation Using 5G Frequency Bands on Multi-Vendor Radio Access Network

NTT DOCOMO, INC., Fujitsu Limited and NEC Corporation announced today that they have achieved what they believe to be the world's first carrier aggregation using 5G frequency bands in a multi-vendor radio access network (RAN). Interoperability with different vendors' 5G base station equipment was achieved in compliance with specifications established by the Open Radio Access Network (O-RAN) Alliance, an international group working to create more open and intelligent next-generation radio access networks.