Patent ID: 8588716
Filing Date: 2013-11-19
Classification: H04B

Abstract:
1. A method for searching for signals among interference signals in a multi-channel radio receiver in which at least two different data signals are transmitted on at least one physical channel of a radio system to a common receiver, the method which comprises: starting from a sequential search for a useful signal, initiating a signal search on any given channel by measuring a current signal strength to determine a measured RSSI value; searching for a signal criterion for the useful signal being sought on the given channel and, after the signal criterion is identified, comparing the measured RSSI value with a predetermined RSSI threshold value; if the measured RSSI value exceeds the RSSI threshold value, switching from a signal search to a data frame search on the given channel and, if the data frame search is successful, reading the useful data; and if no data frame is found on the given channel, aborting the search on the given channel, defining a new RSSI threshold value for the given channel, and initiating a new search process.