REAL-TIME LIGHTWEIGHT NAT KEEP-ALIVE INTERVAL OPTIMIZATION FOR MULTI-SIM MOBILE DEVICES

Title:

REAL-TIME LIGHTWEIGHT NAT KEEP-ALIVE INTERVAL OPTIMIZATION FOR MULTI-SIM MOBILE DEVICES

Document Type and Number:

WIPO Patent Application WO/2022/035010

Kind Code:

A1

Abstract:

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method includes setting, using at least one processor of an electronic device that includes multiple subscriber identity module (SIM) cards, a maximum Network Address Translation (NAT) interval to be a maximum value among NAT keep-alive intervals associated with the multiple SIM cards. The method also includes triggering, using the at least one processor, a partial call setup from a first SIM card of the multiple SIM cards to a second SIM card of the multiple SIM cards. The method further includes determining, using the at least one processor, whether the electronic device receives the partial call setup. In addition, the method includes, in response to determining that the electronic device receives the partial call setup, setting, using the at least one processor, the NAT keep-alive interval for each of the multiple SIM cards to be equal to the maximum NAT interval.

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Inventors:

WANG SHU (US)
DUGGI MOHAN REDDY (US)

Application Number:

PCT/KR2021/003198

Publication Date:

February 17, 2022

Filing Date:

March 16, 2021

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H04W4/50; H04W4/60; H04W52/02; H04W80/10; H04W88/06

Foreign References:

US8369895B2	2013-02-05
US20160142998A1	2016-05-19
US20150281926A1	2015-10-01
US20110077031A1	2011-03-31
US20100279698A1	2010-11-04

Attorney, Agent or Firm:

YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)

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