Patent ID: 9686657
Date: 2017-06-20
CPC Classifications: H04W

Claim:
1. A method comprising: a mobile radio receiving via a user interface a broadcast-start command associated with a talkgroup in which the mobile radio is a participant, the talkgroup having an associated channel set that includes a primary channel and a group of auxiliary channels, the mobile radio having a selectable transmit channel and a selectable receive channel; the mobile radio, responsive to receiving the broadcast-start command, selecting the primary channel as its transmit channel if the primary channel is inactive, and otherwise selecting an inactive auxiliary channel as its transmit channel; the mobile radio receiving user media via the user interface, and transmitting received user media on the selected transmit channel; the mobile radio scanning for a transition of an auxiliary channel from inactive to active; and the mobile radio, responsive to detecting such a transition on a given auxiliary channel, selecting the given auxiliary channel as its receive channel for receiving inbound media, generating mixed media at least in part by mixing inbound media received on the selected receive channel with user media received via the user interface, and transmitting the mixed media on the selected transmit channel.