Accordingly, there is a need for a solution to the problems identified above to provide solutions improving traffic distribution between a first network and a second network, e.g., a macro cellular network and a micro cellular network. More specifically, to enable the wireless device, whilst belonging to a first network, to start measurements only at the right locations or cells to find an available second network, e.g., a so called shared network island enabled by a micro cellular network, and to make those measurements efficient by providing adequate guidance to the wireless device on where to measure.

In the following, network centric solutions and wireless device centric solutions will be presented. However, it should be appreciated that solutions combining selected features of a network centric solution and a device centric solution are also within the scope of the present disclosure.

FIGS. 2a and 2b illustrates, in flowcharts, method steps performed in a network node to enable inter-network traffic distribution by designating one or more cells of a second network as neighbouring cells to the first network. The disclosure presents a proactive process of gathering information about the networks to perform neighbour mapping to be used as an input to a to distribution functionality, which executes the distribution.

In the network-centric case the distribution functionality requires an inter-network command procedure which could be implemented as policy data base downloaded to each wireless device. In the wireless device centric case, an algorithm is provided in the wireless device.