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Source: People's Post and Telecommunications News

At the end of 2023, 3GPP officially announced that it would develop the sixth-generation mobile communication system. In order to fulfill this promise, 3GPP determined the timetable for 6G standardization during the plenary meeting held in Maastricht, the Netherlands in March 2024. It can be said that 6G is entering the pre-standardization stage and is steadily approaching us. In Ericsson's view, a standardized 6G network architecture is the cornerstone of realizing this vision.

Ericsson believes that at the bottom of the 6G network architecture, early consensus needs to be reached in the following three key areas: First, network migration and spectrum aggregation. Based on the experience of 5G, we should simplify the connection options and unify the spectrum aggregation methods in the process of migrating to 6G, thereby reducing technical complexity and removing obstacles to achieving common industry goals. Second, the evolution of the radio access network architecture. As the entire industry shifts to Cloud RAN, a new multi-vendor environment has emerged. To successfully deploy standardized, multi-vendor equipment-compatible interfaces, it is necessary not only to have a clear insight into their business value, but also to have a clear separation of concerns. Third, the evolution of the core network architecture. The existing 5G core network (5GC) is a "potential stock" with scalability. The improved 5GC architecture will be able to support new 6G radio access technologies (RATs) and give full play to the flexibility of 5GC to make network management simpler.

Ericsson put forward four suggestions around the 6G network architecture. The first is the independent networking mode. The 6G system should adopt an independent networking mode to ensure that the user equipment (UE) is only connected to the 6G network. The industry needs to work together to establish a standardized, efficient and dynamic spectrum sharing mechanism from the beginning. The second is intelligent network management. The 6G RAN continues to evolve, and network management orchestration is more intelligent. It is imperative to provide standardized intent-driven management interfaces. The third is the focus of 6G network standardization. The 6G network standardization work should focus on interfaces, networks and functional services in multi-vendor deployment environments to achieve openness and interoperability in important links, and concentrate on the standardization process itself. The fourth is cross-border technology integration. 6G solutions must go beyond the standardization scope of the mobile communications industry, integrate rapidly evolving technologies such as cloud native, artificial intelligence, machine learning, and automation, and make these areas an important part of the 6G system architecture and operation processes. (Ai Xin)