Additionally, your network connection doesn’t drop completely. As one network fades, the congestion protocols figure out that fewer packets should be sent over that network in lieu of the others. In this scenario, your mobile device is connected to your cellular network with one radio, and connected to one or two WiFi networks with its WiFi radios. One way to solve network congestion and the annoying drop in connectivity while your device finally gives up on the poor connection and negotiates over to another, is to use multipath TCP. That’s great news for your battery life, but if you’re on the edge of any network (which can happen fairly often if you’re moving around) your network connection will drop until a new one is set up. Generally speaking, the various radios that are inside your device aren’t being used for redundant connections, you only have one operating at any given time. ![]() Eventually the network is switched to the “next best”. As one signal fades or interference increases, so does your user experience.
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