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Glossary

eNB (E-UTRAN Node B) in 3GPP: meaning and where it is specified

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

At a glance

Term
eNB
Stands for
E-UTRAN Node B
Defined in
3GPP TR 21.905 V19.2.0, clause 4
Used in
TS 23.002, TS 36.300, TS 36.401

In plain words

In 3GPP TR 21.905, eNB means E-UTRAN Node B. TS 23.002 uses the term in the clause titled "E-UTRAN Node B (eNB)". TS 36.300 says an eNB supporting SIPTO@LN with collocated L-GW shall support S5 and SGi interfaces, while TS 36.401 says it can support FDD, TDD, or dual mode operation.

Source: 3GPP TS 23.002 V16.0.0, clause 4.2.3.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/23_series/23.002/23002-g00.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 V16.0.0, clause 4.2.3.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/23_series/23.002/23002-g00.zip
  3. 3GPP TS 36.300 V18.8.0, clause 4.0. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.300/36300-i80.zip
  4. 3GPP TS 36.401 V18.1.0, clause 6.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.401/36401-i10.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.