Patent ID: 9629187
Date: 2017-04-18
CPC Classifications: H04W

Claim:
1. In a communication system comprising a first radio access network (RAN) configured to serve wireless communication devices (WCDs) according to a first air interface protocol, a second RAN configured to serve WCDs according to a second air interface protocol, and a network node communicatively coupled to the first RAN and the second RAN, a method comprising: while a given WCD is being served by the first RAN using at least one channel, receiving at the network node an indication of a communication quality of the at least one channel used by the first RAN to serve the given WCD; selecting by the network node a call setup procedure for establishing a call to be served by the second RAN, wherein the selecting is based on the received indication of the communication quality of the at least one channel, and wherein the selected call setup procedure comprises the given WCD transitioning to be served with the call by the second RAN; and signaling by the network node to invoke setup of the call using the selected call setup procedure.