Wireless communication system with discrimination between extraneous received signals

A base station for a wireless communications system, wherein the system comprises:

• at least one base station;
• and
• a plurality of remotely located terminal units;
• communication modules for transmitting and receiving data over operational wireless communication links between at least the base station and the terminal units;
• wherein the base station includes at least one detector for analysing signals from the communication module of the respective base station for detecting extraneous received signals;
• the detector of the base station being configured to analyze signals from the communication module in unassigned tiles of the communication links;
• the detector being configured to discriminate between a first type of extraneous signals detected in an unassigned tile or group of unassigned tiles of one sub-frame and also detected in other unassigned tiles or groups of unassigned tiles, and a second type of extraneous signals detected in the unassigned tile or group of unassigned tiles of one sub-frame but not detected in other unassigned tiles or groups of unassigned tiles;
• and
• the base station (LBT, DAA, Adaptivity) being configured to react to detection of the first type of extraneous signals differently than a reaction of the base station (DFS) to detection of the second type of extraneous signals.

A method of wireless communication in a wireless communication system having at least one base station;

• and a plurality of remotely located terminal units;
• the base station and the remotely located terminal units having respective communication modules for transmitting and receiving data over operational wireless communication links between at least the base station and the terminal units;
• wherein the communication links are assigned to respective sub-channels having tiles separated by frequency and time;
• and wherein the base station and/or at least one terminal unit includes at least one detector analysing signals from the communication modules for detecting extraneous received signals, wherein the method comprises:
• analysing, via the detector, signals from the communication modules in unassigned tiles of the communication links;
• discriminating, via the detector, between a first type of extraneous signals detected in an unassigned tile or group of unassigned tiles of one sub-frame and also detected in other unassigned tiles or groups of unassigned tiles, and a second type of extraneous signals detected in the unassigned tile or group of unassigned tiles of one sub-frame but not detected in other unassigned tiles or groups of unassigned tiles;
• and
• reacting, via the base station (LBT, DAA, Adaptivity), to detection of the first type of extraneous signals differently from a reaction of the base station (DFS) to detection of the second type of extraneous signals.