GPRS Tunnelling Protocol User Plane

E523078

mobile core network protocol tunnelling protocol

GPRS Tunnelling Protocol User Plane (GTP-U) is a mobile core network protocol used to carry user data traffic in encapsulated form between key nodes such as base stations, serving gateways, and packet gateways in 3G/4G networks.

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All labels observed (5)

Label	Occurrences
GPRS Tunnelling Protocol	3
GTP-U	3
GPRS Tunnelling Protocol User Plane canonical	2
GTP‑U	1
General Packet Radio Service (GPRS) Tunnelling Protocol User Plane (GTPv1‑U)	1

How this entity was disambiguated

This entity first appeared as the object of triple T5480722 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: GPRS Tunnelling Protocol User Plane
Context triple: [Serving Gateway, supportsProtocol, GPRS Tunnelling Protocol User Plane]

A. 3GPP
3GPP is an international standards organization that develops technical specifications for mobile telecommunications technologies, including 3G, 4G LTE, and 5G.
B. 3GPP TS 29-series
The 3GPP TS 29-series is a collection of technical specifications that define core network interfaces and protocols within 3GPP mobile communication systems.
C. 3GPP RAN
3GPP RAN is the standards group within 3GPP responsible for specifying the radio access network technologies and protocols used in mobile communication systems such as LTE and 5G.
D. 3GPP TS 24-series
The 3GPP TS 24-series is a collection of core network and service-level technical specifications that define signaling, call control, and IP multimedia procedures for mobile telecommunications systems.
E. 3GPP Technical Specification Group Services and System Aspects
3GPP Technical Specification Group Services and System Aspects is the 3GPP body responsible for defining overall system architecture, service capabilities, and operational requirements for mobile telecommunications standards.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: GPRS Tunnelling Protocol User Plane
Target entity description: GPRS Tunnelling Protocol User Plane (GTP-U) is a mobile core network protocol used to carry user data traffic in encapsulated form between key nodes such as base stations, serving gateways, and packet gateways in 3G/4G networks.

A. GPRS
GPRS (General Packet Radio Service) is a mobile data standard that enables packet-switched internet and multimedia services over 2G and 3G cellular networks.
B. RLC (Radio Link Control) protocol for UMTS
The RLC (Radio Link Control) protocol for UMTS is a Layer 2 protocol that provides segmentation, reassembly, error correction, and in-sequence delivery of data between the user equipment and the radio access network in 3G systems.
C. 3GPP
3GPP is an international standards organization that develops technical specifications for mobile telecommunications technologies, including 3G, 4G LTE, and 5G.
D. 3GPP TS 29-series
The 3GPP TS 29-series is a collection of technical specifications that define core network interfaces and protocols within 3GPP mobile communication systems.
E. 3GPP RAN
3GPP RAN is the standards group within 3GPP responsible for specifying the radio access network technologies and protocols used in mobile communication systems such as LTE and 5G.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	mobile core network protocol ⓘ tunnelling protocol ⓘ
abbreviation	GTP-U ⓘ linked to: GPRS Tunnelling Protocol User Plane
backwardCompatibleWith	earlier GTP versions ⓘ
carries	IP user data ⓘ user plane PDUs ⓘ
category	mobile telecommunications protocol ⓘ
connects	Packet Data Network Gateway ⓘ Radio Network Controller ⓘ linked to: Radio Network Controller (RNC) Serving GPRS Support Node ⓘ Serving Gateway ⓘ base stations ⓘ eNodeB ⓘ gNodeB ⓘ linked to: gNB
defaultPort	2152 ⓘ
definedIn	3GPP TS 29.281 ⓘ
distinguishedFrom	GTP-C ⓘ linked to: GTP
encapsulationOver	IP ⓘ UDP ⓘ
function	carry user data traffic ⓘ encapsulate IP packets ⓘ tunnel user plane data between core network nodes ⓘ
layer	user plane ⓘ
messageType	Echo Request ⓘ Echo Response ⓘ End Marker ⓘ Error Indication ⓘ G-PDU ⓘ
operatesOver	IP backbone network ⓘ
OSIModelLayer	between IP and transport of user data ⓘ
partOf	GPRS Tunnelling Protocol ⓘ linked to: GTP
relatedProtocol	GPRS Tunnelling Protocol Control Plane ⓘ
roleInLTE	transport of user data between SGW and PGW ⓘ transport of user data between eNodeB and SGW ⓘ
roleInUMTS	transport of user data between RNC and SGSN ⓘ transport of user data between SGSN and GGSN ⓘ
standardizedBy	3GPP ⓘ
supports	GTP-U echo mechanism ⓘ mobility management at user plane level ⓘ path management ⓘ tunnel management ⓘ
usedFor	inter-operator IPX connectivity ⓘ roaming user data transport ⓘ
usedIn	3G networks ⓘ 4G networks ⓘ Evolved Packet Core ⓘ LTE core network ⓘ UMTS core network ⓘ
usesIdentifier	Tunnel Endpoint Identifier ⓘ

How these facts were elicited