Wireless communication system including a plurality of independent wireless service networks

摘要

A multi-modal device, a wireless communication system with a plurality of portable radio devices and a method of allocating frequency bands to independent systems of a cellular radio communication network are proposed. The multi-modal device can select a wireless communication network based on different parameters and adapt its frequency and modulation protocol to the wireless communication network. The wireless communication system allows reallocation of radio spectrum from one wireless service network to another wireless service network. The method allows allocating of one or more frequency bands to independent systems on a shared basis, wherein said shared frequency bands are used for traffic channels within an independent system to which each is currently allocated.