Patent · US Active

Mobile terminating information delivery for mulitple USIM UE

US12127150B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Qian Chen · Mölndal, SE
Christofer Lindheimer · Linköping, SE
Stefan Rommer · Mölndal, SE
Paul Schliwa-Bertling · Ljungsbro, SE
Magnus Stattin · Upplands Väsby, SE
Alessio Terzani · Stockholm, SE

Key dates

Filing date	Oct 6, 2020
Grant date	Oct 22, 2024
Priority date	—
Expiry date	Aug 10, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04W88/06
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method performed by a UE having multiple USIMs is provided. The method includes registering the UE in a first PLMN. The method includes moving the UE into a CM-connected state in the first PLMN. The method includes setting up a PDU session in the first PLMN. The method includes using a DNS, via the PDU session in the first PLMN, to select a N3IWF in a second PLMN. The method includes accessing the N3IWF via IP connectivity provided by the first PLMN and initiating a registration procedure with an AMF node in the second PLMN using the N3IWF, the UE indicating that the AMF node shall only use N3IFW for NAS notifications after registration. The method includes completing the registration procedure to register with the second PLMN. The method includes setting up a PDU session with a SMF node in the second PLMN without user plane resources.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.