Patent ID: 7706798
Filing Date: 2010-04-27
Classification: H04B,H04W

Abstract:
1. A method of discovering at least part of a frequency list used by an active wireless device in a cellular communications network for neighbour cell signal measurements, comprising: monitoring at least one signalling link carrying messages between two elements of the communications network; selecting monitored messages of a first type carrying reports of measurements relating to propagation of wireless signals between the network and the device extracting the reports of the measurements from the messages of the first type, including received signal strength of beacon transmissions from at feast one neighbour cell and an identity of the neighbour cell; independently of operation of said two elements of the communications network and using equipment separate from the two elements of the communications network; selecting monitored messages of a second type carrying data other than reports of such measurements; extracting information from the messages of the second type; and combining the measurement reports extracted from the messages of the first type with the information extracted from the messages of the second type to discover at least part of the neighbour cell frequency list used by the wireless device for neighbour cell measurements.