Question: In IOPS (Isolated Operation for Public Safety) mode, how is floor control performed for MCPTT (Mission Critical Push To Talk) calls utilizing IP connectivity functionality without a centralized server?
Option 1: Through a distributed algorithm among all connected UEs (User Equipment), with each UE autonomously deciding when to transmit.
Option 2: By designating a temporary floor arbitrator, which is the MCPTT client currently speaking, to control and grant the right to speak to other clients.
Option 3: Using a token-based system, where a unique token is passed among participants to determine who has the right to speak.
Option 4: Through direct communication with the IOPS MC connectivity function, which schedules speech slots for each participant.
Explanation: In IOPS mode for public safety, without a centralized MCPTT server, floor control for MCPTT calls relies on a peer-to-peer approach. The client currently speaking temporarily acts as the floor arbitrator, managing who speaks next, ensuring orderly communication among participants.