Specification
3GPP TS 36.304: Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode
At a glance
- Title
- Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle mode
- Newest version
- V19.3.0 (Rel-19)
- Versions indexed
- 6
- Newest per release
- Rel-15: V15.8.0 (2022-04-13); Rel-16: V16.10.0 (2025-06-26); Rel-17: V17.6.0 (2025-06-25); Rel-18: V18.5.0 (2026-06-29); Rel-19: V19.3.0 (2026-09-25)
In plain words
TS 36.304 states: "The present document specifies the Access Stratum (AS) part of the Idle Mode procedures applicable to a UE." It also specifies the model for the functional division between the NAS and AS in a UE. When a UE is switched on, a public land mobile network (PLMN) is selected by NAS. V19.3.0 includes one CR whose subject is an IoT-NTN correction for measurement rules for cell re-selection for NB-IoT.
Source: 3GPP TS 36.304 V19.3.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.304/36304-j30.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.3.0 | 2026-09-25 | TSG RAN #113 |
| Rel-18 | V18.5.0 | 2026-06-29 | TSG RAN #112 |
| Rel-17 | V17.6.0 | 2025-06-25 | TSG RAN #108 |
| Rel-16 | V16.10.0 | 2025-06-26 | TSG RAN #108 |
| Rel-15 | V15.8.0 | 2022-04-13 | TSG RAN #95-e |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Change requests in V19.3.0
V19.3.0 of TS 36.304 includes 1 CR.
| CR | Category | Subject | Source | Working group meeting | TSG TDoc |
|---|---|---|---|---|---|
| CR 0895 rev 1 | F | IoT-NTN correction for measurement rules for cell re-selection for NB-IoT | CATT | RAN2 #135 | RP-262145 |
Source: 3GPP CR database.
Meetings behind the latest versions
Working group meetings that agreed the CRs in V19.3.0:
- RAN2 #135: 1 CR
Plenary meetings:
- TSG RAN #113 approved V19.3.0 (Rel-19)
- TSG RAN #112 approved V19.2.0 (Rel-19)
- TSG RAN #112 approved V18.5.0 (Rel-18)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Clauses changed in V19.3.0
7 clauses changed or added in V19.3.0. Each clause number opens Scout on that clause.
| Clause | Title | Change | CRs |
|---|---|---|---|
| 5.2.4.5 | E-UTRAN Inter-frequency and inter-RAT Cell Reselection criteria | changed | |
| 5.2.4.2a | Measurement rules for cell re-selection for NB-IoT | changed | CR 0895 |
| 5.2.4.7 | Cell reselection parameters in system information broadcasts | changed | |
| 5.6.2 | Access network selection and traffic steering rules | changed | |
| 5.6.3 | RAN assistance parameters definition | changed | |
| 7.3 | Paging in extended DRX | changed | |
| 7.5.2 | WUS group sets selection | changed |
Source: 3GPP Scout comparison of this version with the one before it.
Sources
- 3GPP TS 36.304 V19.3.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.304/36304-j30.zip
- 3GPP TS 36.304 V19.3.0, clause 4.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/36_series/36.304/36304-j30.zip
- 3GPP CR database.
How this page was made
The facts box and the tables come straight from the 3GPP specification archive and CR database 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.