Integrated circuit for channel arrangement and radio communication

摘要

Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit (12) executes a modulation process on Dch data after encoded so as to generate a Dch data symbol. A modulation unit (22) executes a modulation process on the encoded Lch data so as to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and the Lch data symbol to respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit (104). Here, when a plurality of Dch are used for a Dch data symbol of one mobile station, the allocation unit (103) uses Dch of continuous channel numbers.

主权项

1. An integrated circuit, comprising:
mapping circuitry including a block interleaver, which, in operation,
interleaves consecutive Distributed Virtual Resource Block (DVRB) numbers; andmaps DVRBs, the numbers of which being interleaved, to Physical Resource Blocks (PRBs), each PRB being comprised of a plurality of subcarriers, wherein said block interleaver has 4 columns where nulls, a number of which is a difference between a size of the block interleaver and a total number of the DVRBs, are inserted in a same row of second and fourth columns of the block interleaver, and the DVRB numbers are written row by row and read out column by column, and said mapping circuitry maps two of the DVRBs, the numbers of which are written in a same row of first and third columns of the block interleaver, to PRBs in a same frequency within a subframe, and maps two of the DVRBs, the numbers of which are written in a same row of the second and fourth columns of the block interleaver, to the PRBs in a same frequency within a subframe.