What is S6a interface in LTE?
S6a is an LTE 4G mobile-related interface between the MME and HSS used for authentication, location & service information about the subscriber. It uses Diameter over TCP, UDP, SCTP transport protocol. There are 4 messages initiated by the MME and 4 messages initiated by the HSS.
What is S6b interface?
1 General. The S6b interface shall enable the authentication and authorization between the UE and the 3GPP AAA Server/Proxy for DSMIPv6. When an UE performs the DSMIPv6 initial attach, it runs an IKEv2 exchange with the PDN GW as specified in 3GPP TS 24.303 [13].
What does S6d mean?
S6a/S6d [MME/SGSN <–>HSS] In LTE network HSS (Home Subscriber Server) is a database that contains Authentication Information and Subscriber’s Data such as Services associated, Location Information etc.
What is NAS and as in LTE?
Non-access stratum (NAS) is a functional layer in the UMTS and LTE wireless telecom protocol stacks between the core network and user equipment. Once the User Equipment (UE) establishes a radio connection, the UE uses the radio connection to communicate with the core nodes to coordinate service.
What is S1 mode in LTE?
LTE S1-UP (user plane) The S1 user plane external interface (S1-U) is defined between the LTE eNodeB and the LTE S-GW. The S1-U interface provides non guaranteed data delivery of LTE user plane Protocol Data Units (PDUs) between the eNodeB and the S-GW. Transport network layer is built on IP transport and GTP-U.
What is RF interface?
The Rf interface is the offline charging interface between the Charging Trigger Function (CTF) (for example, P-GW, P-CSCF) and the Charging Collection Function (CCF). The Rf interface specification for LTE/GPRS/eHRPD offline charging is based on 3GPP TS 32.299 V8. 6.0, 3GPP TS 32.251 V8.
What is S11 in LTE?
S11 – This is the interface between the MME and S-GW in an LTE network. The interface is based on Gn/GTP-Control (GTP-C) (interface between SGSN-GGSN) with some additional functions for paging coordination, mobility compared to the legacy Gn/GTP-C (SGSN-GGSN) interface. S11 is a many-to-many interface.
What is LTE SAE?
System Architecture Evolution (SAE) is a new network architecture designed to simplify LTE networks and establish a flat architecture similar to other IP based communications networks.
What is PDN in LTE?
PDN is packet data network which will give data transmission services to the mobile user through Access point name which is configured in mobile device .. In short APN identifies the PDN.
What can the S6a / S6D interface be used for?
The S6 application implements the following 3GPP EPC procedures: A complete set of events that can be generated with the S6a/S6d interface application can be found here and our Diameter Dictionary can be used to help construct, test, validate, and interpret results of your Diameter testing.
Is the Diameter protocol S6A or S6D?
Diameter Network Access Server (NAS) S6a/S6d [MME/SGSN –>HSS] Some times S6a/S6d interfaces are treated as two separate interfaces but here we treat them as single because both have same application identifier(16777251).S6a interface is between MME-HSS and S6d interface between SGSN-HSS.
Is there an emulator for the S6a interface?
The HSS Emulator provides Mobile Subscriber data repository, authentication information, and routing information services for the S6a and S6d interfaces—all of the functionality required by an MME or an SGSN plus all of the benefits of an emulator.
How is the S6B interface used in HSS?
Use the HSS Emulator and the Interface applications in tandem to test Diameter Routing Agents (DRA) , Proxies, Relay Agents, and Redirect Agents. The S6b reference point performs authentication based on reuse of the DER/DEA command set defined in Diameter Extensible Authentication Protocol (EAP).