TS 29.303 – DNS Procedures for EPS and 5G Interworking
3GPP TS 29.303 is the 3GPP Technical Specification for DNS Procedures for EPS and 5G Interworking. Its official 3GPP title is “Domain Name System Procedures”. It is published in 13 releases (Rel-8 to Rel-20); the latest version is 20.0.0 in Rel-20.
Defines DNS-based selection of EPC gateways and related procedures for EPS, roaming, and interworking with the 5G System.
Releases and versions of TS 29.303
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.0.0 | Read · Download (3GPP) |
| Rel-19 | 19.1.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.5.0 | Read · Download (3GPP) |
| Rel-16 | 16.4.0 | Read · Download (3GPP) |
| Rel-15 | 15.5.0 | Read · Download (3GPP) |
| Rel-14 | 14.3.0 | Read · Download (3GPP) |
| Rel-13 | 13.6.0 | Read · Download (3GPP) |
| Rel-12 | 12.4.0 | Read · Download (3GPP) |
| Rel-11 | 11.3.0 | Read · Download (3GPP) |
| Rel-10 | 10.5.0 | Read · Download (3GPP) |
| Rel-9 | 9.5.0 | Read · Download (3GPP) |
| Rel-8 | 8.5.0 | Read · Download (3GPP) |
Scope of TS 29.303
Category: Core Network (DNS and Node Selection). Technology generation: Multi-Gen. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 29.303
- TS 23.401 Evolved Packet System Architecture
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 23.060 GPRS Stage 2 Service Description
- TR 21.905 3GPP Terminology and Definitions
- TS 23.216 SRVCC Architecture Enhancements
- TS 36.413 S1 Application Protocol (S1AP) for E-UTRAN
- TS 36.300 E-UTRAN Radio Interface Protocol Architecture
- TS 29.274 GTPv2-C Control Plane Protocol
- TS 23.402 EPC for Non-3GPP Access (PMIP)
- TS 29.244 PFCP for Control and User Plane Separation
- TS 29.272 MME and SGSN Diameter interfaces to HSS/CSS/EIR
- TS 23.501 5G System Architecture
Specifications that reference TS 29.303
- TS 23.401 Evolved Packet System Architecture
- TS 23.060 GPRS Stage 2 Service Description
- TS 29.500 5G Service Based Architecture
- TS 23.682 Architecture for MTC and SCEF Enhancements
- TS 29.274 GTPv2-C Control Plane Protocol
- TS 29.061 Packet Domain Interworking Requirements
- TS 23.216 SRVCC Architecture Enhancements
- TS 29.272 MME and SGSN Diameter interfaces to HSS/CSS/EIR
- TS 29.244 PFCP for Control and User Plane Separation
- TS 29.060 GPRS Tunnelling Protocol (GTP) version 1
- TS 23.700 Study on SEAL Phase 4
- TS 29.273 EPS AAA Reference Points and Procedures
Other specifications in the 29 series
- TS 29.281 GTPv1-U Protocol Specification
- TS 29.282 3GPP Mobile IPv6 Vendor Specific Option Format
- TS 29.283 Diameter-based MC service user database interfaces
- TS 29.292 IMS Centralized Services (ICS) Interworking
- TS 29.305 Interworking Functions for EPS-Legacy Systems
- TS 29.309 Nbsp Service Based Interface for GBA BSF
- TS 29.311 Service Level Interworking for Messaging
- TS 29.328 IMS Sh, Dh and Ph Interface Procedures
Frequently asked questions
What is 3GPP TS 29.303?
3GPP TS 29.303 is the 3GPP Technical Specification for DNS Procedures for EPS and 5G Interworking. Defines DNS-based selection of EPC gateways and related procedures for EPS, roaming, and interworking with the 5G System.
Which 3GPP releases include TS 29.303?
TS 29.303 is published in 13 releases, from Rel-8 to Rel-20. The latest version on 3GPP Explorer is 20.0.0 (Rel-20).
What category does TS 29.303 belong to?
TS 29.303 belongs to the Core Network (DNS and Node Selection) category of 3GPP specifications. It applies to Multi-Gen networks.
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