Cooperative communication and cognitive radio have become hot topics in recent research of communication networks,attracting a widespread attention.Cooperative communication technique can enhance the transmission capacity of a communication system,while cognitive radio technique can improve the spectrum utilization ratio.As a result,the combination of the two techniques will have a significant impact on the future wireless mobile communication system.This lecture comes in four parts.This part introduces the Cognitive Radio (CR)-related international standards,and three models combined of CR technology and cooperative communication technology.