Guest editorial: Space-air-ground integrated Network with Native Intelligence (NI-SAGIN): Concept, architecture, access and networking

Ubiquitous coverage is one of the most important goals for mobile communication networks. To achieve this, integration space, air, and ground networks highly demanded, which expects to become enabling technologies 6G However, integrated network faces demand orders magnitude improvement in coverage, access capability service capability, could not be achieved under existing management mechanisms. support artificial intelligence (AI) can applied provide technical means solving problems organization space-air-ground network. By virtualizing "softwarizing" resources entire network, provisioning core elements will able form native intelligence. The facilitate a autonomous has capabilities self-adaptive scale, self-allocation resource, self-learning behaviors self-evolution function, expected meet diversified, refined differentiated quality requirements future.