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Unleashing the potential of the Internet of Things 5

Recommendation ITU-T Y.4403/Y.2026

Functional requirements and architecture of the next generation network
for support of ubiquitous sensor network applications and services

1 Scope
This Recommendation, which is based on [ITU-T Y.2012], covers extended features of the next
generation network (NGN) for the support of ubiquitous sensor network (USN) applications and
services. This Recommendation describes functional requirements, a functional architecture and
functional entities in order to support the NGN service requirements and capabilities defined in
[ITU-T Y.2221].

This Recommendation covers:
• Functional requirements and functions to support the NGN capabilities defined in
[ITU-T Y.2221]
• A functional architecture and entities of the NGN to support USN applications and services

2 References
The following ITU-T Recommendations and other references contain provisions which, through
reference in this text, constitute provisions of this Recommendation. At the time of publication, the
editions indicated were valid. All Recommendations and other references are subject to revision;
users of this Recommendation are therefore encouraged to investigate the possibility of applying the
most recent edition of the Recommendations and other references listed below. A list of the
currently valid ITU-T Recommendations is regularly published. The reference to a document within
this Recommendation does not give it, as a stand-alone document, the status of a Recommendation.

[ITU-T Y.2012] Recommendation ITU-T Y.2012 (2010), Functional requirements and
architecture of next generation networks.
[ITU-T Y.2221] Recommendation ITU-T Y.2221 (2010), Requirements for support of
ubiquitous sensor network (USN) applications and services in the NGN
environment.
[ITU-T Y.2701] Recommendation ITU-T Y.2701 (2007), Security requirements for NGN
release 1.

3 Definitions

3.1 Terms defined elsewhere
This Recommendation uses the following terms defined elsewhere:

3.1.1 sensor [ITU-T Y.2221]: An electronic device that senses a physical condition or chemical
compound and delivers an electronic signal proportional to the observed characteristic.
3.1.2 sensor network [ITU-T Y.2221]: A network comprised of interconnected sensor nodes
exchanging sensed data by wired or wireless communication.
3.1.3 sensor node [ITU-T Y.2221]: A device consisting of sensor(s) and optional actuator(s)
with capabilities of sensed data processing and networking.

Rec. ITU-T Y.4403/Y.2026 (07/2012) 535