Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia (BSM); Common air interface specification; Satellite Independent Service Access Point (SI-SAP) interface: Services (V1.1.1)
The present document specifies the SI-SAP interface service and related primitives preliminarily defined in [1] and [7]. The scope of the document is twofold. On the one hand@ revision of existing service specifications is carried out in order to reflect services' update demanded by current satellite systems. On the other hand@ new services are defined in order to bridge the gaps in the following functional areas: Logon/logoff. Satellite Independent (SI) layer configuration. Group transmit. Accordingly@ the specification of new primitives for the aforementioned services is also provided in the present document. Final notes about the use and the implementation of SI-SAP interface service primitives are provided as two independent annexes at the end of the present document. In more detail@ illustration of SI-SAP interface and primitives' implementation in specific use-cases is given in the annex A. Details about the implementation of a SI-SAP interface in real satellite system are provided in the annex B@ where the focus is on the SI-SAP interface implementation as i) local interface (mandatory) or ii) external interface to a BSM subsystem (optional).