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Unleashing the potential of the Internet of Things 5

Recommendation ITU-T Y.4402/F.747.4

Requirements and functional architecture for the open ubiquitous
sensor network service platform

1 Scope
The objective of this Recommendation is to define the open ubiquitous sensor network (USN)
service platform and provide requirements and functional architecture for the open USN service
platform.
The scope of this Recommendation includes:
– concept of the open USN service platform;
– requirements for the open USN service platform;

– functional architecture of the open USN service platform;
– functional entities of the open USN service platform.

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 F.744] Recommendation ITU-T F.744 (2009), Service description and requirements
for ubiquitous sensor network middleware.
[ITU-T Y.2201] Recommendation ITU-T Y.2201 (2009), Requirements and capabilities for
ITU-T NGN.

[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.

3 Definitions

3.1 Terms defined elsewhere

This Recommendation uses the following terms defined elsewhere:
3.1.1 context awareness [ITU-T Y.2201]: A capability to determine or influence a next action in
telecommunication or process by referring to the status of relevant entities, which form a coherent
environment as a context.
3.1.2 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.
3.1.3 sensor network [ITU-T Y.2221]: A network comprised of interconnected sensor nodes
exchanging sensed data by wired or wireless communication.
3.1.4 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.4402/F.747.4 (12/2013) 515