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Glossary

TCP (Transmission Control Protocol) in 3GPP: meaning and where it is specified

Published 2026-10-16Updated 2026-10-16

At a glance

Term
TCP
Stands for
Transmission Control Protocol
Defined in
3GPP TR 21.905 V19.2.0, clause 4
Used in
TS 25.414, TS 29.500

In plain words

The vocabulary entry defines TCP as Transmission Control Protocol. TS 25.414 clause 7.1.3.3 (TCP/IP) states: "The path protocol used shall be TCP, which is specified in IETF RFC 793 [18].". TS 29.500 says that, when TCP is the transport protocol, an HTTP/2 connection maps to a TCP connection.

Source: 3GPP TS 25.414 V19.0.0, clause 7.1.3.3. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/25_series/25.414/25414-j00.zip

Sources

  1. 3GPP TR 21.905 V19.2.0, clause 4. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/21_series/21.905/21905-j20.zip
  2. 3GPP TS 25.414 V19.0.0, clause 7.1.3.3. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/25_series/25.414/25414-j00.zip
  3. 3GPP TS 29.500 V20.0.0, clause 5.3. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/29_series/29.500/29500-k00.zip

How this page was made

The facts box comes straight from the 3GPP TDoc list and specification archive as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.