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Glossary

E-UTRAN (Evolved UTRAN) in 3GPP: meaning and where it is specified

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

At a glance

Term
E-UTRAN
Stands for
Evolved UTRAN
Defined in
3GPP TR 21.905 V19.2.0, clause 4
Used in
TS 23.002, TS 36.331, TS 37.483

In plain words

E-UTRAN means Evolved UTRAN, and TS 23.002 says it "consists of eNBs". Those eNBs provide E-UTRA user-plane and control-plane protocol terminations towards the UE, including PDCP, RLC, MAC, PHY and RRC. TS 36.331 uses E-UTRAN in the EN-DC abbreviation, while TS 37.483 cites TS 36.401, titled Evolved Universal Terrestrial Radio Access Network (E-UTRAN).

Source: 3GPP TS 23.002 V19.0.0, clause 4.2.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/23_series/23.002/23002-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 23.002 V19.0.0, clause 4.2.3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/23_series/23.002/23002-j00.zip
  3. 3GPP TS 36.331 V16.21.0, clause 3.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.331/36331-gl0.zip
  4. 3GPP TS 37.483 V17.11.0, clause 2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/37_series/37.483/37483-hb0.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.