Method and communication arrangement for establishing a communication link

A communication arrangement comprising:

• a first communication facility configured to transmit identification information via an optical signal;
• and
• a second communication facility configured to,
• accept the transmitted identification information,
• transfer the accepted identification information, through a radio interface, to the first communication facility for establishing a communication link via the radio interface between the first communication facility and the second communication facility, and
• establish the communication link via the radio interface if the first communication facility determines that the transferred identification information received from the second communication facility matches the identification information transmitted to the second communication facility by the first communication facility via the optical signal, wherein
• a distance between the first and second communication facilities is in a range in which optical signals are receivable by a sensor of the second communication facility.

A communication facility, comprising:

• a processor configured to,
• provide identification information via an optical signal for reception at a sensor of another communication facility,
• receive, through a radio interface, a signal from the other communication facility for establishing a communication link between the communication facility and the other communication facility via the radio interface, the signal including the identification information as received by the other communication facility,
• compare the received identification information with the identification information provided to other communication facility via the optical signal, and
• establish the communication link if the communication facility determines that the received identification information matches the identification information provided to the other communication facility via the optical signal.

A communication facility, comprising:

• a processor configured to,
• accept identification information transmitted by another communication facility via an optical signal,
• transfer the accepted identification information through a radio interface to the other communication facility, as a request to set up a communication link between the communication facility and the other communication facility via the radio interface, and
• establish the communication link if the other communication facility determines that the transferred identification information received from the communication facility matches the identification information transmitted to the communication facility by the other communication facility via the optical signal.

A method for establishing a communication link via a radio interface between a first communication facility and a second communication facility, wherein a distance between the first and second communication facilities lies in a range in which optical signals are receivable by a sensor associated with one of the first and second communication facility, the method comprising:

• providing, by the first communication facility, identification information to the second communication facility via an optical signal;
• receiving, through a radio interface, a signal from the second communication facility for establishing the communication link, the signal including the identification information as received by the second communication facility;
• implementing, at the first communication facility, a comparison between the received identification information and the identification information provided to the second communication facility via the optical signal;
• permitting setup of the communication link if the comparison indicates that the received identification information matches the identification information provided to the second communication facility via the optical signal.