Patent ID: 11892823
Assignee: ABB SCHWEIZ AG
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A first wireless communication device in an industrial automation system and comprising,
a radio circuit for wireless communication with other wireless communication devices of the industrial automation system via a cellular network, and
a communication handling processor configured to;
receive, while the first wireless communication device is attached to a first base station of the cellular network, a first message from a second wireless communication device via the first base station, said first message including information identifying a particular base station of the cellular network to which the second wireless communication device is attached,
investigate the information of the first message in order to identify said particular base station to which the second wireless communication device is attached,
if the particular base station to which the second wireless communication device is attached a second base station different from the first base station, the communication handling processor being further configured to;
investigate if one or more conditions for attaching to the second base station are fulfilled by the first wireless communication device, wherein one condition is that the second base station is allowable, and
instruct the radio circuit to send a response to the first message concerning the ability of the first wireless communication device to attach to the second base station,

wherein if said one or more conditions are fulfilled, the communication handling processor is further configured to;
instruct the radio circuit to detach from the first base station, and
instruct the radio circuit to attach to the second base station.