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. 03, 2023
Filed:
Aug. 14, 2018
Htc Corporation, Taoyuan, TW;
Kundan Tiwari, Taoyuan, TW;
HTC Corporation, Taoyuan, TW;
Abstract
A communication device for handling an interworking procedure comprises at least one processing circuit configured to execute instructions of registering to a fifth generation (5G) system (5GS) network and establishing at least one Protocol Data Unit (PDU) session of a PDU session type to a Data Network (DN) identified by a first Data Network Name (DNN) and connected to the 5GS network; selecting a cell of an Evolved Packet System (EPS) network, after establishing the at least one PDU session; determining whether the at least one PDU session is supported in the EPS network; determining whether the cell supports an attach without any packet data network (PDN) connection; and initiating an attach procedure on the cell, when determining that none of the at least one PDU session is supported in the cell and the cell does not support the attach without any PDN connection.