Radio transmission device and method
AssigneeGodo Kaisha IP Bridge 1
InventorsSadaki Futagi, Daichi Imamura, Seigo Nakao, Tomofumi Takata
Life of this patent
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Abstract
A radio transmitting device and method enables reduction of an increase of CGI memories for the control channel and an improvement of the throughput of the data channel. When multiplex transmission through the control channel and the data channel is carried out and when adaptive modulation is applied to both channels, an MCS selecting section is provided with one CQI table for the data channel and CQI tables for the control channel, and a table selecting MCS determining section selects one of the tables depending on the transmission bandwidth of the terminal and determines the MCS of the control channel while looking up the selected CQI table.
Claims20
A radio transmitting apparatus comprising:
- a modulation and coding scheme selection section that switches associations between channel quality indicators and modulation and coding schemes according to a parameter of a radio communication terminal apparatus, to determine a modulation and coding scheme of a control channel based on the associations after the switching;
- and
- a coding and modulation section that encodes and modulates control data by the determined modulation and coding scheme.
A radio transmission method comprising:
- a switching step of switching associations between channel quality indicators and modulation and coding schemes according to a parameter of radio communication terminal apparatus;
- a modulation and coding scheme selection step of determining a modulation and coding scheme of a control channel based on the associations after the switching;
- and
- a coding and modulation step of encoding and modulating control data by the determined modulation and coding scheme.
Dependencies are inferred from the claim text.