11 L3 Messages

24.0073GPPGeneral AspectsMobile radio interface signalling layer 3Release 17TS

This clause specifies the generic methods used in the layer 3 protocol specifications to describe messages. It define in particular a generic message structure, that of the "standard L3 messages". Not all messages in layer 3 protocols follow this structure, but many do, and this clause specifies how to interpret the standard description.

This clause also addresses basic aspects of the handling of messages received but not compliant with the allowed structure. In most cases, only the conditions that lead to the diagnosis of an error are described. The reaction of an entity receiving a message leading to such a diagnosis is in general specified for each protocol in the relevant protocol specification.