Menu
Latest
12 meetings · Prague, Jeju · 12–16 Oct
Reports
RAN1#126-bis · SA2#177

Glossary term · Other

ISO

International Organisation for Standardisation

Other →

ISO is the global federation of national standards bodies that develops international standards, which 3GPP references for file formats, security, and management to ensure interoperability.

Introduced
Rel-4
Where
Services › Codecs
Specifications
23 specs
Also in
Management
ISO Description Purpose What changed Neighbours Detected Changes Specifications

Description

The International Organisation for Standardisation (ISO) is an independent, non-governmental international organization that brings together experts from its member bodies to develop consensus-based, market-relevant International Standards. Within the 3GPP ecosystem, ISO standards are extensively referenced to ensure interoperability, security, and efficiency across telecommunications systems and services. 3GPP specifications incorporate ISO standards in areas such as file formats (e.g., for media delivery), security algorithms and frameworks, and network management protocols. This integration allows 3GPP systems to leverage globally recognized and tested standards, reducing development time and ensuring compatibility with other industries and technologies.

The role of ISO in 3GPP is primarily through normative references in technical specifications (TSs). For instance, ISO standards define base media file formats used for streaming and download services in 3GPP networks, ensuring that media content can be consistently packaged, transmitted, and played back across different devices and networks. In security, ISO standards may be referenced for cryptographic algorithms, key management, or security evaluation criteria, providing a robust foundation for protecting user data and network integrity. Management aspects, such as fault, configuration, accounting, performance, and security (FCAPS) management, may also align with ISO management standards to facilitate standardized operational practices.

Architecturally, ISO does not define 3GPP-specific components but provides the underlying standards that 3GPP adopts or adapts. For example, the ISO Base Media File Format (ISOBMFF) is a core standard for structuring multimedia content, which 3GPP has extended for specific use cases like Dynamic Adaptive Streaming over HTTP (DASH). By building on ISO standards, 3GPP ensures that its technologies are part of a broader, interoperable global framework, enabling seamless integration with internet services, storage systems, and other digital ecosystems. This reliance on ISO underscores 3GPP's commitment to open standards and global collaboration.

Purpose & Motivation

The purpose of referencing ISO standards within 3GPP is to leverage internationally recognized and rigorously developed standards, thereby ensuring interoperability, reducing fragmentation, and accelerating innovation. By adopting ISO standards, 3GPP avoids reinventing solutions for common problems, such as file formatting or security protocols, and instead builds upon proven, consensus-driven specifications. This approach addresses the limitations of proprietary or region-specific solutions that could hinder global deployment and increase costs for operators and device manufacturers.

Historically, as telecommunications evolved from circuit-switched voice to packet-based multimedia services, the need for standardized formats and protocols became critical to support diverse applications and devices. ISO, with its broad expertise across industries, provided foundational standards that 3GPP could integrate to meet these needs. For example, before widespread adoption of ISO media formats, proprietary formats might have limited content distribution and device compatibility. Referencing ISO standards ensures that 3GPP systems align with global best practices, facilitating cross-industry collaboration and future-proofing networks against obsolescence.

Moreover, ISO standards contribute to regulatory compliance and security assurance in telecommunications. By incorporating ISO's security standards, 3GPP can address threats like data breaches or service interruptions with methodologies that are internationally validated. This is particularly important as networks become more software-defined and interconnected with other critical infrastructures. Ultimately, the use of ISO standards within 3GPP reflects a strategic decision to prioritize openness, reliability, and scalability in the development of mobile communication technologies.

What changed in its specifications

The latest release-to-release comparison of specifications that define ISO. Each summary describes the whole specification, not only this term.

TR 21.905Rel-17 → Rel-18

Rel-18 brings only minor changes to TS 21.905: 0 clauses changed, with no change attributed to a release feature.

Full comparison in TR 21.905 →
TS 22.101Rel-16 → Rel-17

Rel-17 added support for Multi-USIM devices, emergency call handling, and definitions for MUSIM UEs.

Full comparison in TS 22.101 →

Release Timeline

Detected Changes Across Releases

from 3GPP Change Requests

Specific changes extracted from the „Change history“ tables of 3GPP specifications (1 CRs across 1 releases). Complements the general historical overview above with the evidence-based evolution of this function.

Rel-18 1 change
  • [5GMS3] Correction on Audio encapsulation in ISO BMFF, 3GP file format, CMAF and DASH TS 26.117CR0008

Defining Specifications

3GPP specifications that define or reference ISO, with the latest known release. Sourced from the 3GPP document catalog — see methodology.

SpecificationTitleRelease
TR 21.905 vj20 3GPP Terminology and Definitions Rel-19 read
TS 22.101 vl00 3GPP Service Principles for PLMNs Rel-21 read
TS 22.105 vj00 Telecommunication Services Framework Rel-19 read
TS 26.117 vj20 5G Media Streaming (5GMS) Rel-19 read
TS 26.307 vj00 3GPP HTML5 Profile Specification Rel-19 read
TS 26.512 vj30 5G Media Streaming Protocols and APIs Rel-19 read
TS 26.804 vk10 5G Media Delivery Architecture Extensions Rel-20 read
TS 26.818 vf00 Audio Media Profiles Test Results for VR Streaming Rel-15 read
TS 26.891 vg00 Media Distribution Services in 5G System Rel-16 read
TR 26.907 vj00 HTML5 for 3GPP Services Study Rel-19 read
TR 26.949 vj00 TV Service Profiles for 3GPP Networks Rel-19 read
TR 26.956 vj01 Beyond 2D Video Formats & Codecs Study Rel-19 read
TS 27.007 vk00 AT Command Interface for Mobile Terminals Rel-20 read
TS 28.702 vj00 Core Network NRM IRP Information Service Rel-19 read
TS 28.705 vj00 IMS NRM IRP Information Service Rel-19 read
TS 31.121 vj00 UICC Application Test Specification Rel-19 read
TS 32.111 vj00 Fault Management Alarm IRP Solution Sets Rel-19 read
TS 32.298 vk10 Charging Data Record Specification Rel-20 read
TS 32.401 vj00 Performance Management Concept & Requirements Rel-19 read
TS 32.632 vb00 Core Network Resources IRP: Network Resource Model Rel-11 read
TS 32.732 vb00 IMS Network Resource Model IRP: Information Service Rel-11 read
TS 32.808 v800 Common Profile Storage Framework for User Data Rel-8 read
TS 52.402 vj00 GSM Performance Management Measurements Rel-19 read