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:
Mar. 22, 2022
Filed:
Feb. 17, 2020
Applicant:
Mediatek Inc., Hsin-Chu, TW;
Inventors:
Assignee:
MediaTek INC., Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04W 76/11 (2018.01); H04W 76/30 (2018.01); H04W 76/10 (2018.01);
U.S. Cl.
CPC ...
H04W 76/11 (2018.02); H04W 76/10 (2018.02); H04W 76/30 (2018.02);
Abstract
A method of handling mapped EPS bearer context with duplicate EPS bearer ID (EBI) for 5GS to EPS inter-system change enhancement is proposed. UE is provided with a mapped EPS bearer context IE by the network to create a new mapped EPS bearer associated with a PDU session. UE detects collision of the new mapped EPS bearer—it has the same EBI as an existing EPS bearer. Upon successfully process the create request, UE either replaces the existing EPS bearer with the new mapped EPS bearer, or deletes the EPS bearer with duplicate EBI by explicit signaling to the network. As a result, when inter-system change from 5G to EPS happens, there is no EPS collision.