Test method implemented by an apparatus comprising at least two radio communication devices

A non-transitory computer readable memory comprising instructions that, when executed by a communication device comprising a controller and at least two radio-communication devices disposed in the communication device and coupled to the controller, each of said at least two radio-communication devices including a transmitter and a receiver, wherein a first radio-communication device of the at least two radio-communication devices uses a first communication protocol and a second radio-communication device of the at least two radio-communication devices uses a second communication protocol different from the first communication protocol and said at least two radio-communication devices share the same frequency band, cause the communication device to:

• transmit, by a transmitter to be tested of the first radio-communication device of the at least two radio-communication devices and configured to use the first communication protocol, a test signal in a transmission channel of the first radio-communication device of the at least two radio-communication devices, wherein the test signal is signed in the form of a sequence of predetermined time and/or frequency bits and/or transmitted power levels that the receiver can distinguish from transmission schemes that surrounding transmitters are likely to use, and
• detect, by the receiver to be tested of the second radio-communication device and configured to use the second communication protocol, the test signal in a reception channel of the second radio-communication device of a second of the at least two radio-communication devices, wherein
• a frequency range of the transmission channel overlaps with a frequency range of the reception channel, and wherein the detecting includes noting triggering, by said receiver of the second radio-communication device, of an event caused by presence of said test signal in the reception channel, the event including a change in operation of the second radio-communication device or presence of an error message.

A communication device comprising:

• a controller including circuitry;
• and
• at least two radio-communication devices disposed in the communication device and coupled to the controller, each of said at least two radio-communication devices including a transmitter and a receiver, wherein a first radio-communication device of the at least two radio-communication devices uses a first communication protocol and a second radio-communication device of the at least two radio-communication devices uses a second communication protocol different from the first communication protocol and said at least two radio-communication devices share the same frequency band,
• wherein the controller is adapted for:
• transmitting, by a transmitter to be tested of the first radio-communication device of the at least two radio-communication devices and configured to use the first communication protocol, a test signal in a transmission channel of the first radio-communication device of the at least two radio-communication devices, wherein the test signal is signed in the form of a sequence of predetermined time and/or frequency bits and/or transmitted power levels that the receiver can distinguish from transmission schemes that surrounding transmitters are likely to use, and
• detecting, by the receiver to be tested of the second radio-communication device and configured to use the second communication protocol, the test signal in a reception channel of the second radio-communication device of the at least two radio-communication devices, wherein
• a frequency range of the transmission channel overlaps with a frequency range of the reception channel, and wherein the detecting includes noting triggering, by said receiver of the second radio-communication device, of an event caused by presence of said test signal in the reception channel, the event including a change in operation of the second radio-communication device or presence of an error message.