A method to guide the placement of a new small cell, wherein a small cell is a radio cell station with much smaller coverage area than a macro cell, the method uses one or more existing wireless cells, one or more mobile devices of known location and application use and context, a processor and database system, the new small cell, a device for guiding the user in the placement of the new small cell, comprising the following steps: - location dependant measured network characteristics, and location dependant contextual data needs of the mobile device, are recorded and stored in the database system over time; - the contents of the database system are used to determine the likely future location specific network needs together with the characteristics of the new small cell, by a) determining and characterizing of the location dependent data needs of a mobile device, reflecting application usage, b) determining the availability of existing network resources at a specific location, or across an area, especially the area of potential influence of the new small cell, c) characterizing the new small cell in terms of at least its capacity, bandwidth, power and latency, d) comparing a) and b) to determine the location dependent contextual needs, e) comparing c) and d) and computing the result to determine the placement co-ordinates of the new small cell in view of possible location sites, - and use the placement co-ordinates to guide a user in the placement of the new small cell, with the device for guiding the user. - location dependant measured network characteristics, and location dependant contextual data needs of the mobile device, are recorded and stored in the database system over time; - the contents of the database system are used to determine the likely future location specific network needs together with the characteristics of the new small cell, by a) determining and characterizing of the location dependent data needs of a mobile device, reflecting application usage, b) determining the availability of existing network resources at a specific location, or across an area, especially the area of potential influence of the new small cell, c) characterizing the new small cell in terms of at least its capacity, bandwidth, power and latency, d) comparing a) and b) to determine the location dependent contextual needs, e) comparing c) and d) and computing the result to determine the placement co-ordinates of the new small cell in view of possible location sites, a) determining and characterizing of the location dependent data needs of a mobile device, reflecting application usage, b) determining the availability of existing network resources at a specific location, or across an area, especially the area of potential influence of the new small cell, c) characterizing the new small cell in terms of at least its capacity, bandwidth, power and latency, d) comparing a) and b) to determine the location dependent contextual needs, e) comparing c) and d) and computing the result to determine the placement co-ordinates of the new small cell in view of possible location sites, - and use the placement co-ordinates to guide a user in the placement of the new small cell, with the device for guiding the user.