A network node, a mobility management node and methods therein for handling gtp tunnel failures in a radio communications network

A method performed by a mobility management node for handling a GPRS Tunneling Protocol (GTP) tunnel failure in a radio communications network the method comprising:

• receiving a notification message from a Serving Gateway, SGW, serving a network node identifying at least one E-UTRAN Radio Access Bearer, E-RAB, for which a GPRS Tunneling Protocol, GTP, error indication was received;
• transmitting a release message for a wireless device associated with the network node said release message comprising information identifying the at least one E-UTRAN Radio Access Bearer, E-RAB, and information indicating that the release message was caused by a GPRS Tunneling Protocol, GTP, error indication;
• receiving a first modification message from the network node to modify the at least one E-RAB identified in the release message, said first modification message comprising the allocated one or more TEIDs for the at least one E-RAB;
• and
• transmitting a second modification message to the SGW to modify the at least one E-RAB identified in the received notification message, said second modification message comprising the allocated one or more TEIDs for the at least one E-RAB received in the first modification message.

A mobility management node for handling a GPRS Tunneling Protocol (GTP) tunnel failure in a radio communications network the mobility management node is configured to comprising:

• receive a notification message from a Serving Gateway, SGW, serving a network node identifying at least one E-UTRAN Radio Access Bearer, E-RAB, for which a GPRS Tunneling Protocol, GTP, error indication was received,
• transmit a release message for a wireless device associated with the network node, said release message comprising information identifying the at least one E-UTRAN Radio Access Bearer, E-RAB, and information indicating that the release message was caused by a GPRS Tunneling Protocol, GTP, error indication,
• receive a first modification message from the network node to modify the at least one E-RAB identified in the release message, said first modification message comprising the allocated one or more TEIDs for the at least one E-RAB, and
• transmit a second modification message to the SGW to modify the at least one E-RAB identified in the received notification message, said second modification message comprising the allocated one or more TEIDs for the at least one E-RAB received in the first modification message.