User Profile

I have a downchannel half-connection to the Amazon Alexa cloud https://developer.amazon.com/en-US/docs/alexa/alexa-voice-service/manage-http2-connection.html#create Now, if the APP enters the background, my connection will be broken. Even if I put it in the backgroundTask, I cannot maintain the connection through ping, How do I maintain this HTTP persistent connection when the APP is in the background, plz。