This Recommendation provides the framework of the blockchain for next generation network evolution (NGNe) and specifies the capability requirements that meet the needs of next generation network (NGN) and the blockchain framework. This Recommendation covers the following aspects:

• Motivations and scenarios of the blockchain in the next generation network evolution (NGNe).

• High-level requirements of the blockchain in the NGNe based on the scenarios.

• General framework and capability requirements of the blockchain in the NGNe.

This Recommendation also provides an appendix describing:

• Use cases of blockchain in the NGNe.