Dynamic backoff in Wi-Fi calling

摘要

In order to improve the quality of a telephone call communicated over a wireless local area network (WLAN), an electronic device (such as a cellular telephone) may obtain one or more performance metrics based on communication with another electronic device (such as an access point) via a connection in the WLAN. For example, the electronic device may receive the one or more performance metrics from the other electronic device and/or may determine the one or more performance metrics based on the performance of the communication. Then, the electronic device may compare the one or more performance metrics with an interference criterion. If the interference criterion is met, the electronic device may perform a remedial action, such as selectively discontinuing use of the WLAN to communicate the telephone call for a time interval. Otherwise, the electronic device may continue using the WLAN to communicate the telephone call.

主权项

1. An electronic device, comprising:
an interface circuit configured to communicate a Wi-Fi call with another electronic device using a connection in a wireless local area network (WLAN); a processor; and a memory, wherein the memory stores a program module, and wherein the program module is configured to be executed by the processor, the program module including:
instructions for obtaining one or more performance metrics based on at least the performance of the communication with the other electronic device;instructions for comparing the one or more performance metrics with an interference criterion;instructions for performing a remedial action when the interference criterion is met;instructions for discontinuing the remedial action after a time interval, wherein the length of the time interval depends on at least a number of times that the remedial action has been taken; andinstructions for using the connection in the WLAN to communicate the Wi-Fi call.