1. Master or slave reader as a proxy between MRFID reader and tags.
In this method the MRFID reader communicates with the tags using master-slave system as a proxy. The MRFID reader sends e.g. a search profile to the master-slave reader. The master-slave reader wakes up the right tags in the proximity of MRFID reader or navigates to the location of the item of interest. In the first case (item in proximity) the items answer and the MRFID reader consumes the information in the listen mode. The advantage in this case is the possibility to avoid power consuming multiple tag collision processes to be initiated from the mobile reader. Another benefit is the possibility of delegation of the mobile reader wake-up procedure to the master-slave readers.