What is the difference between GTP C and GTP-U?
GTP-C supports transport of control packets in IPv4 format. GTP-U— Transports user data within the core GPRS network and between the Radio Access Network (RAN) and the core network. GTP-U supports IPv4 and IPv6 user data, but transport is IPv4.
What is GTP-U in 5g?
GTP-U Tunnels are used to carry encapsulated T-PDUs and signalling messages between a given pair of GTP-U Tunnel Endpoints. The Tunnel Endpoint ID (TEID) which is present in the GTP header indicates which tunnel a particular T-PDU belongs to.
What is a GTP header?
NOTE : GTP is used mainly for data traffic between eNB/gNB and core network. The control message between eNB/gNB and core network is going through SCTP. Following is the GTP Header format. User Data (usually IP data) is encapsulated by a GTP packet following this header as shown in example section.
Which field in the GTP header is optional?
A 32-bit(4-octet) field used to multiplex different connections in the same GTP tunnel. an (optional) 16-bit field. This field exists if any of the E, S, or PN bits are on. The field must be interpreted only if the S bit is on.
What is S11 interface?
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 GTP interface?
GPRS Tunnelling Protocol (GTP) is a group of IP-based communications protocols used to carry general packet radio service (GPRS) within GSM, UMTS, LTE and 5G NR radio networks. In 3GPP architectures, GTP and Proxy Mobile IPv6 based interfaces are specified on various interface points.
What is Uu interface in LTE?
The LTE-Uu is the radio interface that connects the UEs to the eNodeBs eNodeB with the UE. It handles all the signaling messages between the eNodeB and the MME as well as the data traffic between the UE and the S-GW.
Which of the GTP protocol version is used on S11 interface?
GTP V2
S11 interface is between the MME and SGW. It uses GTP V2 over UDP transport protocol.
What is PC5 and UU?
LTE technology defines two cellular communication interfaces for this purpose: Uu and PC5 [9]- [12]. Uu interface uses LTE’s uplink and downlink to implement vehicle-to-vehicle communication, while PC5 (direct communication) interface uses a similar method that of DSRC which enables direct connection among vehicles.
What is a Uu interface?
UMTS air interface or “Uu interface”, which links User Equipment to the UMTS Terrestrial Radio Access Network. Unix-to-Unix, as in uuencode, a data transport encoding. .uu, a compressed archive file extension, associated with uuencode.
What does PC5 stand for?
PC5
| Acronym | Definition |
|---|---|
| PC5 | Phycoerythrin Cyanin 5 |
What is the header length of GTP version 0?
a 1-bit value that for GTP’ version 0 indicates if using a 20 byte header (value 0) (as per GTP) or this 6 byte header. This bit must be unset (value 0) for subsequent GTP’ versions and in these does not indicate the header length as this must always be 6 bytes.
What is the difference between GTP’V1 and V2 headers?
GTP’ v1 and v2 headers contain the following fields The first header field in a GTP’ packet is the 3-bit version field. For GTP’ v2, this has a value of 2 (hence the name GTP’ v2). a 1-bit value that differentiates GTP’ (value 0) from GTP (value 1).
What are the header fields in a GTP packet?
The first header field in a GTP’ packet is the 3-bit version field. For GTP’ v2, this has a value of 2 (hence the name GTP’ v2). a 1-bit value that differentiates GTP’ (value 0) from GTP (value 1). a 3-bit reserved field (must be 1’s).
What is the use of GTP U protocol?
GTP-U protocol is used over S1-U, X2, S4, S5 and S8 interfaces of the Evolved Packet System (EPS). GTP-U Tunnels are used to carry encapsulated T-PDUs and signalling messages between a given pair of GTP-U Tunnel Endpoints.