US 11,659,602 B2
Wireless network connection management method
Shao-Wei Li, New Taipei (TW); Shih-Ting Wang, New Taipei (TW); and Yu-Wei Fan, New Taipei (TW)
Assigned to Wistron Corporation, New Taipei (TW)
Filed by Wistron Corporation, New Taipei (TW)
Filed on Jan. 11, 2021, as Appl. No. 17/145,411.
Claims priority of application No. 109138803 (TW), filed on Nov. 6, 2020.
Prior Publication US 2022/0150989 A1, May 12, 2022
Int. Cl. H04W 28/08 (2023.01); H04W 8/18 (2009.01); H04W 76/10 (2018.01)
CPC H04W 76/10 (2018.02) [H04W 8/183 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless network connection management method, for a wireless communication device and at least one universal integrated circuit card (UICC), wherein the at least one UICC is disposed in the wireless communication device and the at least one UICC is corresponding to a plurality of subscriber identity modules (SIMs), the wireless network connection management method comprising:
the at least one UICC starting a search timer when utilizing a non-priority SIM of the plurality of SIMs to establish a connection with a non-priority wireless network;
the at least one UICC sending a search command to the wireless communication device in response to a first condition, wherein the first condition is that the search timer expires;
the wireless communication device searching for and obtaining a current network status, and sending a reply message indicating the current network status to the at least one UICC; and
the at least one UICC informing and switching to a priority wireless network, and transmitting an update command to the wireless communication device in response to that the current network status indicates that a signal strength of the priority wireless network corresponding to a priority SIM of the plurality of SIMs is greater than a specific signal strength.