1. A method of inter-cell interference coordination (ICIC) control in a wireless communication network that is configured to provide communication service to wireless communication devices, said method comprising: identifying, within a coverage area of the network, an interference zone in which wireless communication devices are subject to patterned interference arising from interfering transmissions from nodes that mute their transmissions according to a particular schedule, said identifying based on signal measurement reports and corresponding positioning data obtained for the wireless communication devices during operation within the coverage area; recording location data defining the interference zone in an interference map; and providing the interference map for use in adapting ICIC operations with respect to a wireless communication device operating in the coverage area, based on a location of the wireless communication device relative to the interference zone.