Real-time lightweight NAT keep-alive interval optimization for multi-SIM mobile devices
US11290866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/2582
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.