Method and a system for enabling a wireless communication between a master unit and a sensor unit

A system comprising a master unit and at least one sensor unit, wherein the master unit and the at least one sensor unit are arranged to communicate using a wireless communication, said at least one sensor unit having one or more channels and a buffer memory and being further arranged for sampling the one or more of its channels with a data sampling frequency and for storing resulting sample in the buffer memory together with a corresponding sample sequence number, wherein the at least one sensor unit is further arranged to transmit an integrated sample to the master unit during a portion of the frame, wherein:

• the master unit is adapted to transmit during a master unit portion of the frame a data update request message comprising an identification of an initial sample sequence number from which integration by the at least one sensor unit has to be carried out;
• the at least one sensor unit is adapted to integrate the sample values from the initial sample sequence number to a current sample sequence number and to transmit during a further portion of the frame the integrated sample value and the identification for the current sample sequence number;
• and
• the master unit is further adapted to receive the integrated sample value and the identification of the current sample sequence number and to store at least the identification of the current sample sequence number.