Method, network node, computer program and computer program product for determining a dropped connection

A network node operative to be part of a mobile communication network also comprising a mobile terminal, the network node comprising:

• a radio bearer release detector operative to detect a release of a radio bearer associated with the mobile terminal;
• a radio bearer type determiner operative to determine whether the radio bearer is a real-time type radio bearer;
• and
• a dropped connection determiner operative to:
• when the radio bearer is a real-time type radio, determine the released radio bearer to be a dropped connection when the release is classified as an involuntary release;
• and
• when the radio bearer differs from a real-time type radio bearer, determine the released radio bearer to be a dropped connection when there is remaining user data in a buffer for transfer in either direction over the released radio bearer.

A non-transitory computer-readable storage medium storing a computer program comprising computer program code which, when run on a network node, causes the network node to:

• detect a release of a radio bearer associated with a mobile terminal;
• determine whether the radio bearer is a real-time type radio bearer;
• when the radio bearer is a real-time type radio bearer, determine the released radio bearer to be a dropped connection when the release is classified as an involuntary release;
• and
• when the radio bearer differs from a real-time type radio bearer, determine the released radio bearer to be a dropped connection when there is remaining user data in a buffer for transfer in either direction over the released radio bearer.