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8 EHM capability framework

The EHM capability framework maps the layered EHM capabilities identified in [ITU-T Y.2065] to
each EHM component as specified in the EHM conceptual framework.

8.1 Distribution map of the EHM capabilities

The EHM essential IoT capabilities, based on the requirements identified in [ITU-T Y.2065], are
specified in this Recommendation.
NOTE – IoT basic capabilities and IoT capabilities for integration of key emerging technologies, as specified
in [ITU-T Y.2068], are also applicable to the support of EHM services.

According to the EHM capability requirements [ITU-T Y.2065] and based on the components of the
EHM conceptual framework, the distribution of the EHM capabilities in the four layers of the IoT
reference model [ITU-T Y.2060] is shown in Figure 3. As all EHM components have cross-layer
EHM management and security capabilities, these cross-layer capabilities are not shown in Figure 3,
the purpose of Figure 3 being to show the differences from a capability viewpoint among the EHM
components.
In Figure 3, the boxes represent the components specified in the EHM conceptual framework, the
dashed rounded rectangles represent the four layers of [ITU-T Y.2060] and the circles represent the
presence of EHM capabilities at a given layer in a given component.

Figure 3 – Distribution map of EHM capabilities

In the EHM end point, the EHM capabilities are distributed in the device layer and application layer,
as well as cross-layer EHM management and security capabilities.
In the EHM terminal, the EHM capabilities are distributed in the device layer, network layer, service
support and application support layer and application layer, as well as cross-layer EHM management
and security capabilities.
In the gateway, the EHM capabilities are distributed in the device layer, network layer, service support
and application support layer, application layer, as well as cross-layer EHM management and security
capabilities.
On the IoT platform, the EHM capabilities are distributed in the network layer, service support and
application support layer, application layer, as well as cross-layer EHM management and security
capabilities.

Rec. ITU-T Y.4408/Y.2075 (09/2015) 667