Patent ID: 8761796

Claim:
A spatial arrangement of communication devices comprising: a plurality of second communication devices each having at least two radio interfaces of a first type and of a second type in a network of a plurality of first communication devices each having at least one interface of the second type, wherein the network is switched via the radio interfaces of the second type and wherein the first type is different from the second type, and wherein: at least some of the first and second communication devices are set up to emit first signals via the radio interfaces of the second type, at least some of the first and second communication devices are set up to receive these first signals and equipped with facilities for estimating their own positions within the spatial arrangement using the first signals received, and at least some of the second communication devices are equipped with a device for emitting second signals via the radio interfaces of the first type, and wherein the second signals contain an indication of their own positions of the second communication devices emitting them, within the spatial arrangement, the indication of their own positions being information based on the estimating of their own positions within the spatial arrangement made using the first signals received by those second communication devices.