The concept of the next generation network has already proposed for several years

experts in this field have a great deal of different understandings and explanations. In order to accelerate the process of the research and formulation of NGN standard

the definition of NGN has been given and 12 standard suggestions drafts have been put forward at the meeting about NGN

which ITU held at the beginning of this year. This text has introduced the definition of NGN and some standard suggestions.