Invention Grant
- Patent Title: Preserving S1-AP UE contexts on SCTP failover
-
Application No.: US15041922Application Date: 2016-02-11
-
Publication No.: US09992240B2Publication Date: 2018-06-05
- Inventor: Loudon Lee Campbell
- Applicant: Telefonaktiebolaget L M Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Baker Botts, LLP
- Main IPC: H04W76/00
- IPC: H04W76/00 ; H04L29/06 ; H04W24/04 ; H04W8/06 ; H04W92/04

Abstract:
According to some embodiments, a method in a network node of a wireless communication network comprises determining that a plurality of S1-AP UE contexts maintained by the network node remain valid after a SCTP failure; generating an S1 Setup Request message comprising an indication that the UE contexts remain valid; and communicating the S1 Setup Request message to a MME. In particular embodiments, a method in an MME comprises receiving an S1 Setup Request message from a network node comprising an indication that UE contexts maintained by the network node remain valid after a SCTP failure. The MME determines a plurality of UE contexts maintained by the MME remain valid after a SCTP failure; generates an S1 Setup Response message comprising an indication that UE contexts maintained by the MME remain valid; and communicates the S1 Setup Response message to the network node.
Public/Granted literature
- US20160242084A1 PRESERVING S1-AP UE CONTEXTS ON SCTP FAILOVER Public/Granted day:2016-08-18
Information query