Page 373 - Shaping smarter and more sustainable cities - Striving for sustainable development goals

 Operation, Administration, Maintenance and Provisioning, and Security (OAM & P & security)
framework: this provides the operation, administration, maintenance and provisioning, and
security function for the ICT systems of SSC.

Figure 9 – A multi‐tier SSC ICT architecture from communications view, emphasizing

on a physical perspective
Figure 9 shows also, six interfaces between layers and OAM & P & security framework, marked with
numbers in circles. These are places where communications and exchange of information between
the layers, and OAM & P & security framework take place. They are the focal point of standards
specifications and thus are called communication interface point. Overall functions at each of these
reference points are listed below:

 Communication interface point 1: this exists between the city physical infrastructure and sensing
layer. It enables the terminals sense the physical world, i.e., exchange of information and control
signals between terminal nodes in sensing layer and the physical infrastructure.

ITU‐T's Technical Reports and Specifications 363