Section: 6.4.1.5 Abnormal cases in the UE
Content: The following abnormal cases can be identified: a) Default EPS bearer context activation request for an already activated default EPS bearer context: If the UE receives an ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message with an EPS bearer identity identical to the EPS bearer identity of an already activated default EPS bearer context, the UE shall locally deactivate the existing default EPS bearer context and all the associated dedicated EPS bearer contexts, if any, and proceed with the requested default EPS bearer context activation. b) Default EPS bearer context activation request for an already activated dedicated EPS bearer context: If the UE receives an ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message with an EPS bearer identity identical to the EPS bearer identity of an already activated dedicated EPS bearer context, the UE shall locally deactivate the existing dedicated EPS bearer context and proceed with the requested default EPS bearer context activation.