6.1 General

23.2143GPPArchitecture enhancements for control and user plane separation of EPC nodesRelease 17TS

This clause defines the procedures that are used for the interaction between SGW-C and SGW-U, PGW-C and PGW-U, TDF-C and TDF-U, and documents how these procedures shall be embedded into existing procedures of TS 23.401 [2], TS 23.402 [4], TS 23.060 [5] and TS 23.203 [3].

NOTE: TS 23.401 [2], TS 23.402 [4], TS 23.060 [5] and TS 23.203 [3] do not reflect control and user plane separation of SGW, PGW or TDF and thus the procedures in these specifications do not show the interaction between the respective CP function and UP function. In case of any discrepancies, the procedures defined in TS 23.401 [2], TS 23.402 [4], TS 23.060 [5] and TS 23.203 [3] apply.