As the next generation technology of mobile telecommunication network

LTE greatly increases the data rates of wireless access network

and provide services including voice and broadband data only via packet core network.OoS guarantee in IP network for carrying voice or other real-time data voices become a key issue in mobile industry.PCC infrastructure defined by 3GPP that suited to meet the end-to-end QoS can be easily tailored to enhance the network performance.This article first introduces the generic PCC infrastructure and the working principle

then

links with the development of LTE and PCC technologies

discusses the application mode of PCC in LTE network

and how to implement it.