1、6G Lean RAN White Paper（2022）China Mobile Research InstitutePrefaceThis white paper aims to put forward the driving force analysis,architecture design,key technologies and challenges by China Mobile for6G lean radio access network.We hope that it can provide reference andguidance for the design sche

2、me of 6G access network architecture andprotocol stack function in the industry.The copyright of this white paper belongs to China Mobile.Withoutauthorization,no institution or individual may copy part or all of thecontents of this white paper.China Mobile6G Lean RAN White Paper（2022）Contents1 Backg

3、round.12 The driving force of 6G lean radio access network.42.1 From build before use to deploy on demand.42.2 From high energy consumption to green network.52.3 From three scenarios to more diversified scenarios.52.4 From flat network to cube network.62.5 From expert experience to high-level networ

4、k autonomy.73 Lean radio access network architecture.94 Key technologies of 6G lean RAN.124.1 Signaling and data decoupling.134.1.1 On demand deployment.144.1.2 Data cell assisted access.154.1.3 Data link establishment and handover.154.2 Lean network functions.164.2.1 Closed-loop QoS management.164.

5、2.2 Intelligent resource control.184.2.3 Flexible link adaptation,ensuring ultimate user experience.194.3 Management and orchestration.215 Future outlook.23References.26List of abbreviations.27China Mobile6G Lean RAN White Paper（2022）11BackgroundWith the rapid expansion of the network scale and the

6、increase of the servicerequirements,the network architecture is becoming more and more complex.Cost andpower consumption are potential problems that need to be solved.In order to solvethese problems,the design of 6th Generation Mobile Networks(6G)will movetowards a simple way and adopt a lightweight