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.
Patent No.:
Date of Patent:
Oct. 26, 2021
Filed:
Oct. 04, 2019
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Assignee:
MediaTek INC., Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/212 (2006.01); H04W 76/11 (2018.01); H04W 76/36 (2018.01); H04W 76/10 (2018.01); H04W 76/18 (2018.01); H04W 76/30 (2018.01); H04W 8/30 (2009.01); H04W 28/04 (2009.01); H04W 80/02 (2009.01); H04W 12/06 (2021.01); H04W 80/10 (2009.01); H04W 80/12 (2009.01);
U.S. Cl.
CPC ...
H04W 76/11 (2018.02); H04W 8/30 (2013.01); H04W 12/06 (2013.01); H04W 28/04 (2013.01); H04W 76/10 (2018.02); H04W 76/18 (2018.02); H04W 76/30 (2018.02); H04W 76/36 (2018.02); H04W 80/02 (2013.01); H04W 80/10 (2013.01); H04W 80/12 (2013.01);
Abstract
A method of handling PDU session identity (PSI) mismatch for PDU session procedures is proposed. In case a user equipment (UE) receives a 5G session management (5GSM) message in which the PSI value indicates that the PDU session is in 5GSM state PDU SESSION INACTIVE, the UE stays in its current 5GSM state for the PDU session and responds with a 5GSM status message including a 5GSM cause #43 'Invalid PDU session identity' to reduce signaling and UE handling effort. In case the UE receives a 5GSM message in which the PSI value is a reserved or an assigned value, the UE stays in its current 5GSM state for the PDU session and ignores the 5GSM message to reduce signaling.