Invention Grant
- Patent Title: Network node, a mobility management node and methods therein for handling GTP tunnel failures in a radio communications network
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Application No.: US15515662Application Date: 2015-09-28
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Publication No.: US09992692B2Publication Date: 2018-06-05
- Inventor: Yong Yang , Qian Chen
- Applicant: Telefonaktieboiaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Sage Patent Group
- International Application: PCT/EP2015/072215 WO 20150928
- International Announcement: WO2016/050673 WO 20160407
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W24/02 ; H04W76/04 ; H04W24/04

Abstract:
A method performed by a network node (110) for handling a GTP tunnel failure in a radio communications network (100) is provided. The network node (110) receives a release message from a mobility management node (150) for a wireless device (121) associated with the network node (110). The release message comprises information identifying at least one E-UT-RAN Radio Access Bearer, E-RAB, and information that the release message was caused by a DPRS Tunneling Protocol, GTP, error indication. The network node (110) also allocates one or more tunnel endpoint identifiers, TEIDs, for the at least one E-RAB identified in the received release message. Then, the network node (110) transmits a modification message to the mobility management node (150) to modify the at least one E-RAB identified in the received release message, said modification message comprising the allocated one or more TEIDs for the at least one E-RAB. A network node for handling a GTP tunnel failure in a radio communications network (100) is also provided. A mobility management node (150) and a method therein for handling a GTP tunnel failure in a radio communications network (100) is also provided.
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