Base station, mobile station and method

A mobile station used in a mobile communication system using a single carrier scheme in an uplink, comprising:

• a unit configured to perform communication with a base station using the whole or a part of a system frequency band
• a storage unit configured to store corresponding relationship between radio parameters including a bandwidth, a modulation scheme and a channel coding rate of the uplink and filter parameters including at least a roll-off factor of a band limitation filter, wherein the radio parameters are associated with the filter parameters;
• and
• a determination unit configured to determine radio parameters and filter parameters of the uplink based on a control signal from the base station and the correspondence relationship.

A method used in a base station of a mobile communication system using a single carrier scheme in an uplink, comprising:

• storing correspondence relationship between radio parameters including a bandwidth, a modulation scheme and a channel coding rate of the uplink and filter parameters including at least a roll-off factor of a band limitation filter, wherein the radio parameters are associated with the filter parameters;
• determining radio parameters and filter parameters for each mobile station based on the correspondence relationship according to channel state of the uplink;
• and
• reporting the determined radio parameters and the filter parameters to a mobile station that uses the whole or a part of a system frequency band.

A method used in a mobile station of a mobile communication system using a single carrier scheme in an uplink, comprising:

• storing correspondence relationship between radio parameters including a bandwidth, a modulation scheme and a channel coding rate of the uplink and filter parameters including at least a roll-off factor of a band limitation filter, wherein the radio parameters are associated with the filter parameters;
• receiving a control signal from a base station;
• determining radio parameters and filter parameters of the uplink based on the control signal and the correspondence relationship;
• and
• transmitting a signal to the base station using the whole or a part of a system frequency band.