What is SGi interface?
What is SGi interface?
The SGi interface is defined by the 3GPP as the interface between the Evolved Packet Core (EPC) and the Public IP network. Importantly, traffic through the interface can be identified by user IP, making user and service differentiation a reality.
What is the interface between PGW and PCRF?
Interface between the PGW and the Policy and Charging Rules Function (PCRF). In particular, this is the interface between the Policy Control Enforcement Function (PCEF) or the PGW and the PCRF. Operational and maintenance interface, used to manage the device. Interface between the PGW and any packet data network.
What are LTE interfaces?
Within an LTE network, LTE Interfaces connect the various components to or within the core. Interfaces allow the MME, SGW and PGW to cooperate with other network elements (e.g. HSS or PCRF). Each one of them is built in a standard way described by 3GPP.org.
What is MB Interface?
The 3GPP has defined the Mb interface as the bearer traffic terminated on the MRF, or more specifically the MRFP. Bearer traffic includes the growing volume of Real Time Protocol (RTP) packets, along with associated Real Time Control Protocol (RTCP) information in the bearer plane.
What is X2 interface?
X2 interface. A point-to-point logical interface between two eNodeBs with the E-UTRAN. It supports the exchange of signaling information between two eNodeBs and supports the forwarding of protocol data units (PDUs) to the respective tunnel endpoints. X2 Application Protocol (X2AP) Protocol used by the X2 interface.
What is Rx interface 3GPP?
Overview. The Rx interface is used to exchange Flow Based Charging control information between the Charging Rules Function (CRF) and the Application Function (AF). As defined in the stage 2 specifications (3GPP TS 23.125 [2]), this information is used by the CRF for the Flow Based Charging (FBC) decisions.
What is X2 interface in LTE?
The X2 is the interconnecting interface between two eNodeBs in LTE network and supports both Control Plane and User Plane. The principle Control Plane protocol is X2-AP (X2 Application Protocol) resides on SCTP (Stream Control Transmission Protocol).
What is S11 interface 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 MRFC and MRFP?
MRFC stands for Media Resource Function Control and MRFP stands for Media Resource Function Processing. When CSCF gets INVITE message and find some incompatibility between two phones that want to communicate each other, it passes that information to MRFC.
What is difference between S1 and X2?
The X2 procedure is used to handover a UE from a source (H)eNB to a target (H)eNB for which the MME is unchanged. Two procedures are defined depending on whether the serving GW (S-GW) is relocated, see [4], [5]. The S1 procedure is used by the source eNB to initiate a handover through the S1-MME interface, see [4].
Is X2 interface mandatory?
X2 interfaces are not needed between ALL eNodeBs in a network. X2 interfaces are only needed between neighboring eNodeBs (i.e. those that control cells with overlapping coverage areas). It is only between neighbors that handovers will occur or interference co-ordination will be needed.
What is Rx interface used for?
The Rx interface is used to exchange Flow Based Charging control information between the Charging Rules Function (CRF) and the Application Function (AF). As defined in the stage 2 specifications (3GPP TS 23.125 [2]), this information is used by the CRF for the Flow Based Charging (FBC) decisions.