Page 552 - 5G Basics - Core Network Aspects

1 Applications

Figure 4 – IoT reference model

8.1 Application layer

The application layer contains IoT applications.

8.2 Service support and application support layer
The service support and application support layer consists of the following two capability groupings:

– Generic support capabilities: The generic support capabilities are common capabilities which can be
used by different IoT applications, such as data processing or data storage. These capabilities may
be also invoked by specific support capabilities, e.g., to build other specific support capabilities.
– Specific support capabilities: The specific support capabilities are particular capabilities which cater
for the requirements of diversified applications. In fact, they may consist of various detailed
capability groupings, in order to provide different support functions to different IoT applications.

8.3 Network layer
This consists of the following two types of capabilities:
– Networking capabilities: provide relevant control functions of network connectivity, such as access
and transport resource control functions, mobility management or authentication, authorization
and accounting (AAA).
– Transport capabilities: focus on providing connectivity for the transport of IoT service and
application specific data information, as well as the transport of IoT-related control and
management information.

8.4 Device layer

Device layer capabilities can be logically categorized into two kinds of capabilities:
– Device capabilities:
The device capabilities include but are not limited to:
Direct interaction with the communication network: Devices are able to gather and upload
information directly (i.e., without using gateway capabilities) to the communication network and
can directly receive information (e.g., commands) from the communication network.
Indirect interaction with the communication network: Devices are able to gather and upload
information to the communication network indirectly, i.e., through gateway capabilities. On the

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