Method for remote control message transmission delay compensation by providing pseudo-response message based on prior received responses stored in look-up table

DETAILED DESCRIPTION What I claim is: 1.
A method for use in a system comprising a remote controlling unit and a controlled unit controlled by said controlling unit, the controlling unit sending control-unit messages (commands and/or requests) to the controlled unit and the controlled unit responding to these control-unit messages by sending response messages (acknowledgements and/or information words) back to the controlling unit, and the controlling unit requiring the response messages back within a certain maximum acceptable delay time, wherein the transmission of messages from the controlling unit to the controlled unit and back comprises a total delay exceeding said maximum acceptable delay time and the method comprising storing and updating of a response table close to the controlling unit comprising control-unit messages previously sent from the controlling unit to the controlled unit and corresponding response messages previously received from the controlled unit in response to these control-unit messages and using this response table as a look-up table for generating a pseudo-response message to each control-unit message within the maximum acceptable delay time accepted by the controlling unit, which pseudo-response message is the most recently received response message to the corresponding control-unit message.
2.
A method according to claim 1, wherein the updating of the response table comprises storing of the control-unit message in a message queue memory and when receiving the corresponding response message from the controlled unit storing the control-unit message and the associated response message in the response table, overwriting a possible previous control-unit message with associated response message with an identical control-unit message and an associated, possibly diverging, response message.
3.
A method according to claim 2, wherein the updating of the response table further comprises validation of response messages before using these for updating the response table