Nowadays, with the imminent freezing of the 3GPP Rel-18 standard and the continuous emergence of new scenarios, new services, and new demands, the industry has set off a wave towards 5G-A.

After receiving the industry's largest Open RAN contract worth US$14 billion from AT&T at the end of last year, Ericsson's publicity and marketing voice for Open RAN technology has been unprecedentedly high-profile. "Promoting the industrialization of Open RAN" is one of the loud slogans Ericsson put forward when releasing these latest products.

Open RAN is a general term for open RAN architecture, including open interfaces, virtualization and AI intelligence. OpenRAN is a project initiated by TIP, aiming to realize open RAN, and its work scope includes 2/3/4/5G. TIP, Telecom Infra Project, a telecommunications infrastructure project.

Nowadays, the high-speed development of the communication network, whether it is installed at home fiber optic broadband or cell phone used 5G signal, all rely on the powerful optical communication technology.