The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 05, 2022

Filed:

Nov. 22, 2017
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Peter Ramle, Mölnlycke, SE;

Qian Chen, Mölndal, SE;

Josefin Karlsson, Torslanda, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 36/08 (2009.01); H04W 8/08 (2009.01); H04W 48/16 (2009.01); H04W 48/20 (2009.01); H04W 80/10 (2009.01);
U.S. Cl.
CPC ...
H04W 36/08 (2013.01); H04W 8/08 (2013.01); H04W 48/16 (2013.01); H04W 48/20 (2013.01); H04W 80/10 (2013.01);
Abstract

The embodiments herein relate to a method performed by an AMF () for handling handover. The AMF () receives one of: a handover required message and a first request message. The handover required message is received from an S-RAN () and the first request message is received from another AMF () in response to the handover required message. The AMF () sends to a SMF (), a set of one or more first request messages and activates a timer. The AMF () determines whether at least one of the following is true: a certain amount of time has elapsed since the timer was activated and the AMF () has received a first PDU response message for each one of the first PDU request messages. The AMF () transmits a handover request message to a T-RAN () as a result of determining that at least one of the conditions is true.


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