Method for moving IMS voice session on non-3GPP to 3GPP access

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12218985
APP PUB NO 20220345949A1
SERIAL NO

17753378

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided in one embodiment of the present specification is a method for user equipment (UE) for an Internet protocol multimedia subsystem (IMS) voice session. The method can comprise the steps of: establishing an EMS voice session by using a non 3GPP interworking function (N3IWF) or an enhanced packet data gateway (ePDG) through non-3rd generation partnership project (3GPP) access; determining that voice is not supported on a current NG-RAN on the basis of that the UE must moves the IMS voice session to a 3GPP access; and handing over a protocol data unit (PDU) session for the IMS voice session of the non-3GPP access to an evolved packet core (EPC) of the 3GPP access on the basis of the determination.

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Patent Owner(s)

  • LG ELECTRONICS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chun, Sungduck Seoul, KR 250 2766
Kim, Hyunsook Seoul, KR 351 5645
Kim, Laeyoung Seoul, KR 393 5493
Lee, Sehee Seoul, KR 59 289
Park, Sangmin Seoul, KR 219 2939
Youn, Myungjune Seoul, KR 182 2190

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