Patent ID: 7929971

Claim:
A method of controlling radio resources assigned to a communication between a mobile terminal and a cellular radio network infrastructure with spread spectrum, the infrastructure comprising at least one radio network controller and fixed transceivers serving respective cells, the method comprising the following steps: measurement of respective propagation channel parameters between the mobile terminal and several fixed transceivers, the measurements comprising the determination, for each fixed transceiver, of a propagation profile including at least one propagation path associated with a respective reception energy; transmission to the radio network controller of report messages indicating at least a part of the measured parameters; and processing of the report messages at the radio network controller, wherein the parameters indicated in the report messages for at least one fixed transceiver comprise data dependent on the energy distribution in the propagation profile comprising an indication of relative time position for propagation paths detected between the mobile terminal and the at least one fixed transceiver, taken into account by the radio network controller in said processing, and wherein processing of the report messages at the radio network controller comprises a determination of a number of communication channels to be used between a fixed transceiver and the mobile terminal and of a format of said communication channels, and a configuration of the fixed transceiver or of the mobile terminal to take account of said channels to be used; and a determination of a time shift between main propagation paths of the communication channels, wherein the time shift is compared with the duration of a symbol, and at least a comparison result of the symbol duration being shorter than the time shift is leading to an increase of the spreading factor as a determination of the format of the communication channel.