US 11,902,838 B2
Transferring monitoring event information during a mobility procedure
Yong Yang, Kållered (SE); Wenliang Xu, Shanghai (CN); and Yunjie Lu, Shanghai (CN)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/599,195
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 23, 2020, PCT No. PCT/EP2020/057903
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/193445, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. PCT/CN2019/080136 (WO), filed on Mar. 28, 2019.
Prior Publication US 2022/0159521 A1, May 19, 2022
Int. Cl. H04W 8/20 (2009.01); H04W 36/00 (2009.01); H04W 36/24 (2009.01)
CPC H04W 36/0033 (2013.01) [H04W 8/20 (2013.01); H04W 36/24 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for transferring monitoring event information during a mobility procedure, the method comprising:
at an old Mobility Management Entity, MME:
receiving and storing subscription information indicating that a Service Capability Exposure Function, SCEF, has subscribed to get notification when there is a data delivery failure involving a User Equipment, UE, followed by the UE becoming reachable;
detecting a data delivery failure involving the UE, and, in response to detecting the data delivery failure, setting a flag to indicate that a data delivery failure involving the UE has occurred;
receiving, from a new MME, a mobility related request;
sending, to the new MME, a response to the mobility related request, the response comprising at least one of:
an indication that the new MME should notify the SCEF when the UE becomes reachable; and/or
an indication that the new MME should notify the SCEF when the UE enters IDLE state.