interfaces

S1 interface is between the eNB (eNodeB) and the MME (Mobility Management Entity).

S6a interface is between the MME (Mobility Management Entity) and HSS (Home Subscriber Server).

SLs interface is between the MME(Mobility Management Entity) and e-SMLC (Evolved Serving Mobile Location Center).

In wireless applications, the C interface is a 3G interface between the MSC and HLR.

In wireless applications, the Gn interface is a 3G interface between the SGSN and GGSN.

In wireless applications, the Gr interface is a 3G interface between the SGSN and HLR.

In wireless applications, the Gx interface is a 4G interface between the PCEF and PCRF.

In wireless applications, the Gy interface is a 4G interface between the PCEF and OCS.

Interface is between the UE (User Equipment) and the AMF (Accessibility & Mobility Management Function).

In wireless applications, the S10 interface is a 4G interface between the MME and MME.

In wireless applications, the S11 interface is a 4G interface between the MME and SGW.

In wireless applications, the S12 interface is a 4G interface between the RNC and SGW.

In wireless applications, the S2b interface is a 4G interface between the PGW and ePDG.

In wireless applications, the S3 interface is a 4G interface between the MME and SGSN.

In wireless applications, the S4 interface is a 4G interface between the SGSN and SGW.

In wireless applications, the S5/8 interface is a 4G interface between the SGW and PGW.

In wireless applications, the S9 interface is a 4G interface between the Visiting PCRF and Home PCRF.

Tsp interface is between the MTC-IWF (Machine Type Communication-Interworking Function) and SCS (Service Capability Server).