随着第五代（5G）移动网络的大规模商用部署，面向2030 年的新服务和新应用正逐渐兴起，信息、通信和数据技术（ICDT）的深度融合已成为未来网络发展趋势。新应用需求、新技术趋势以及5G实践经验，构成了下一代移动网络发展的三大驱动力。本文回顾了移动网络架构演进的历史和驱动力，提出了第六代（6G）移动网络的逻辑功能架构。所提6G网络架构称为SOLIDS，由其六大基本网络特征构成，即柔性（soft）、按需服务（on-demand fulfillment）、至简（lite）、内生智慧（native intelligence）、数字孪生（digital twin）和内生安全（native security）。该网络架构可以有效解决5G网络面临的高成本、高功耗、操作和维护难等主要问题，可在无需人工参与的情况下支持网络的自生成、自修复、自演进和自免疫。

With the large-scale commercial launch of fifth generation (5G) mobile network, the development of new services and applications catering to the year 2030, along with the deep convergence of information, communication, and data technologies (ICDT), and the lessons and experiences from 5G practice will drive the evolution of the next generation of mobile networks. This article surveys the history and driving forces of the evolution of the mobile network architecture and proposes a logical function architecture for sixth generation (6G) mobile network. The proposed 6G network architecture is termed SOLIDS (related to the following basic features: soft, on-demand fulfillment, lite, native intelligence, digital twin, and native security), which can support self-generation, self-healing, self-evolution, and self-immunity without human involvement and address the primary issues in the legacy 5G network (e.g., high cost, high power consumption, and highly complicated operation and maintenance), significantly well.