Patent ID: 11898440
Assignee: RAPTOR DATA LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E  G  H | IPC E  G  H

Claim 23:
24. An apparatus for determining a suitability of a frequency band for data communication with a node by way of a communication channel, the apparatus comprising:
a receiver;
a transmitter; and
processing circuitry communicatively coupled to the receiver and the transmitter, the processing circuitry being configured to cause the transmitter to transmit to the node, by way of the communication channel, first and second signals each comprising frequencies in the frequency band, the first signal comprising a calibration signal and the second signal comprising predetermined reference data, and wherein the receiver is configured to receive, by way of the communication channel, an indication from the node of the suitability of the frequency band for data communication with the node,
wherein the processing circuitry is configured to cause the transmitter to transmit the first and second signals to the node in response to a FIND command relating to the node received by the receiver from a finding node.