Method and apparatus to improve IMS registration failures over WLAN

A computing system within or associated with a User Equipment (UE), the computing system comprising:

• one or more processors;
• and
• a memory storing instructions that, when executed by the one or more processors, cause the one or more processors to:
• determine available Wireless Local Area Networks (WLANs) accessible on the UE;
• prioritize the available WLANs on the UE based on degree of wireless connectivity;
• connect the UE to a first WLAN with the highest degree of wireless connectivity;
• send, over the first WLAN, a registration request to an Internet Protocol Multimedia Subsystem (IMS) for the UE;
• receive, from the IMS, a status of the IMS registration for the UE, wherein the status comprises a successful registration status or an unsuccessful registration status;
• and
• upon receiving the successful registration status of the IMS registration, transmit data packets to the IMS;
• and
• the instructions that, when executed by the one or more processors, further cause the one or more processors to:
• upon receiving the unsuccessful registration status of the IMS registration, determine at least one first available WLAN from the available WLANs, wherein a frequency band of the at least one first available WLAN comprises 2.4 GHz;
• connect the UE to a third WLAN selected from the at least one first available WLAN, the third WLAN being a WLAN with a highest degree of wireless connectivity among the at least one first available WLAN;
• and
• send, over the connected third WLAN, another registration request to the IMS for the UE;
• and
• the instructions that, when executed by the one or more processors, further cause the one or more processors to:
• upon a determination of the available WLANs, disable a mobile mode of the UE, wherein the UE is unable to connect to a mobile network in a disabled mobile mode, and the available WLANs comprise one or more public WLANs and one or more private WLANs.

A non-transitory storage medium storing instructions that, when executed by at least one processor of a computing system, cause the computing system to perform a method comprising:

• determining available Wireless Local Area Networks (WLANs) accessible on a User Equipment (UE);
• prioritizing the available WLANs on the UE based on degree of wireless connectivity;
• connecting the UE to a first WLAN with the highest degree of wireless connectivity;
• sending, over the first WLAN, a registration request to an Internet Protocol Multimedia Subsystem (IMS) for the UE;
• receiving, from the IMS, a status of the IMS registration for the UE, wherein the status comprises a successful registration status or an unsuccessful registration status;
• and
• upon receiving the successful registration status of the IMS registration, transmitting data packets to the IMS;
• wherein the connecting the UE to the first WLAN with the highest degree of wireless connectivity, comprises:
• determining at least one first available WLAN from the available WLANs, wherein a frequency band of the at least one first available WLAN comprises 2.4 GHz;
• determining, as the first WLAN, a WLAN with a highest degree of wireless connectivity among the at least one first available WLAN;
• and
• connecting the UE to the first WLAN;
• and
• wherein the method further comprises:
• upon a determination of the available WLANs, disabling a mobile mode of the UE, wherein the UE is unable to connect to a mobile network in a disabled mobile mode, and the available WLANs comprise one or more public WLANs and one or more private WLANs.