Integrated circuit to control radio transmission process

摘要

Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit (111) of a transmission unit (110) decides, with reference to a CQI lookup table, an MCS pattern (MCS1) of the SDCH, an MCS pattern (MCS2) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS2 and the MCS1, encoding modulation units (112 and 113) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit (114) time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal.

主权项

1. An integrated circuit, comprising:
circuitry configured to determine a first coding rate based on modulation and coding scheme (MCS) information to determine the first coding rate transmitted by a base station, the first coding rate being used for transmission of a first type of data; and circuitry configured to calculate a second coding rate based on the MCS information and offset information transmitted by the base station, the calculating the second coding rate comprising adjusting the first coding rate based on the offset information, and the second coding rate being used for transmission of a second type of data, wherein a number of bits forming the offset information is smaller than a number of bits forming the MCS information.