| 摘要 |
An enhanced 3GPP network architecture can enables a SCEF to interact with SCS/AS via APIs that provide location based context; GMLC to get the UE's location, available RATs, and congestion levels; HSS to get the UE's location, available RATs, and congestion levels; PCEF (via PCRF) to obtain the the congestion level at the P-GW; RCAF (via PCRF) to obtain the user plane congestion levels at the E-UTRAN, UTRAN, and WLAN; and serving nodes (MME, SGSN, 3GPP AAA Server) to get the available RATs and congestion levels. |
