Radio communication system for an industrial automation system, method for operating said radio communication system, and radio transceiver station

A method for operating a radio communication system for an industrial automation system in which at least a first communication device and a second communication device are redundantly connected to an industrial communication network, the first and second communication devices each including at least a first communication network connection and a second communication network connection, and including a signal processing unit which is connected to the first and second communication network connections, which forwards data frames to be transmitted to both communication network connections in a parallel manner and which detects redundant data frames received from both communication network connections, the first and second communication devices each being connected directly or indirectly via their first communication network connection to a respective first radio transceiver station, the first and second communication devices each being connected directly or indirectly via their second communication network connection to a respective second radio transceiver station, the method comprising:

• determining, by the first and second radio transceiver stations, an order for data frames to be transmitted within a predefined interval of time based on destination MAC addresses assigned to the data frames to be transmitted, the order within data frames to be transmitted to a selected destination MAC address being determined by the order in which they are received;
• and
• coordinating, by the first and second radio transceiver stations which are connected to the same communication device, orders for data frames to be transmitted via transmission queue management such that the first and second radio transceiver stations radio never transmit data frames to the same destination MAC address at the same time.

A radio transceiver station comprising:

• a processor;
• and
• memory;
• wherein the radio transceiver station is configured such that an order for data frames to be transmitted is determined based on destination media access layer (MAC) addresses assigned to the data frames to be transmitted, the order within the data frames to be transmitted to a selected destination MAC address being determined by the order in which they are received;
• and
• wherein a first radio transceiver station and a second radio transceiver station which are connected to the same communication device coordinate their orders for data frames to be transmitted via transmission queue management such that both radio transceiver stations never transmit data frames to the same destination MAC address at the same time.