Mobile communication system, radio control station, base station and mobile station for the system, and parameter determination method employing parallel combinatory spread-spectrum scheme

摘要

System includes CS, BS connected to CS, and MS performing, with BS, data communication in PCSS scheme. CS comprises storage storing data rates and ratios, parameters indicating numbers of assignment codes and multicoding schemes, acquired one of parameters from storage corresponding to number of assignment codes and ratio, data rate corresponding to acquired one of parameters being higher than data guaranteed rate of service, if parameters are acquired, based on each of numbers of assignment codes and each of ratios from storage, and number of assignment codes and ratio from BS, determining, from computation, one parameter suitable for margin for number of assignment codes from BS and margin for ratio from BS, transmitter transmits determined parameter. BS comprises receiver receiving determined parameter, determining for transmitting data to MS, data generated by determined parameter and performing spreading processing. MS comprises reproduction unit reproducing data by determined parameter and performing despreading processing.