4.3.14 Location Service functions

23.4013GPPGeneral Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) accessRelease 18TS

LCS procedures are described in the LCS stage 2 specification, see TS 23.271 [57].

In addition, in the Detach and Bearer Deactivation procedures, the MME shall inform the S-GW of the last known location of the UE, and shall provide information to enable the determination of the time at which the UE was in that location. The S-GW shall (if necessary taking into account information from the SGSN) inform the PDN GW of the last known location of the UE, and shall provide information to enable the determination of the time at which the UE was in that location. If requested by the PCRF the PDN GW shall indicate this information to the PCRF as defined in TS 23.203 [6]. The information can also be made available on the SGi interface as specified in TS 29.061 [38] and on the CDRs at network elements such as the S-GW and PDN GW as specified in TS 32.251 [44].