Research of PDCP Sublayer of UE Protocol Stack in TD-SCDMA System
LI Xiao-wen · Modern Electronics Technique · 2008
The Packet Data Convergence Protocol(PDCP) ia a sublayer in the L2 of the UE protocol stack in TD-SCDMA system,it is used for PS domain only.It is very important for PDCP sublayer that it is used in the procedure of user data transfer,we design suitable PDCP sublayer,which will ensure that user data is transmitted effectively.Based on this purpose,in this paper,user data transfer process of PDCP is the object of research.Firstly according to PDCP protocol,the structure,functions and related interfaces of PDCP are introduced,and then the data transfer procedure method of PDCP sublayer in AM-RLC modes(RLC acknowledged mode) is mostly designed,it includes the link establishment,the data transfer,and the link release of PDCP.And this is valuable to study the PDCP.