2010 China’s new 3G mobile bearer network transmission network will be used in all PTN technology
carrying the 2G network is being upgraded transport network up to the PTN transition.Both large-scale use of the PTN group business flexibility andefficiency
while inheriting the operation and maintenance of SDH equipment Jianhua features
this article summarizes the PTN network planning principles to be followed
and combined in a region mobile metro PTN DCN network and transmission network planning practices in the case described.