Integrated circuit for channel arrangement and radio communication
View Patent ↗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.
1. A transmitting apparatus, comprising:
circuitry, which in operation, interleaves consecutive Distributed Virtual Resource Block (DVRB) numbers and maps DVRBs, the numbers of which being interleaved, to Physical Resource Blocks (PRBs), each PRB being comprised of a plurality of subcarriers; and
a transmitter, which, in operation, transmits data using the PRBs,
wherein said circuitry, in operation, maps two DVRBs to PRBs in the same frequency within a subframe, a difference between numbers of the two DVRBs being less than or equal to two.
2. The transmitting apparatus according to claim 1 , wherein said circuitry, in operation, interleaves the DVRB numbers using a block interleaver, which writes the DVRB numbers row by row and reads them out column by column.
3. The transmitting apparatus according to claim 1 , wherein said circuitry, in operation, maps the DVRBs to the PRBs such that the DVRBs with consecutive numbers are distributed in a frequency domain.
4. The transmitting apparatus according to claim 1 , wherein said circuitry, in operation, allocates one or a plurality of the DVRBs with consecutive numbers to a mobile station.
5. The transmitting apparatus according to claim 4 , wherein said transmitter, in operation, transmits, to the mobile station, allocation information, which indicates one or a plurality of the DVRBs with consecutive numbers that are allocated to the mobile station.
6. The transmitting apparatus according to claim 4 , wherein said transmitter, in operation, transmits, to the mobile station, allocation information, which is based on a starting DVRB number and the total number of one or a plurality of the DVRBs with consecutive numbers that are allocated to the mobile station.
7. The transmitting apparatus according to claim 1 , wherein said circuitry, in operation, maps N d of the DVRBs to the PRBs in the same frequency within a subframe, where N rb is a total number of the DVRBs, and said circuitry, in operation, maps the DVRBs with the same number to the PRBs that are separated by a gap of N rb /N d in a frequency domain.
8. A method for transmitting data comprising:
interleaving consecutive Distributed Virtual Resource Block (DVRB) numbers;
mapping DVRBs, the numbers of which being interleaved, to Physical Resource Blocks (PRBs), each PRB being comprised of a plurality of subcarriers; and
transmitting data using the PRBs,
wherein two DVRBs are mapped to PRBs in the same frequency within a subframe, a difference between numbers of the two DVRBs being less than or equal to two.
9. The method according to claim 8 , wherein the DVRB numbers are interleaved using a block interleaver, which writes the DVRB numbers row by row and reads them out column by column.
10. The method according to claim 8 , wherein the DVRBs are mapped to the PRBs such that the DVRBs with consecutive numbers are distributed in a frequency domain.
11. The method according to claim 8 , comprising:
allocating one or a plurality of the DVRBs with consecutive numbers to a mobile station.
12. The method according to claim 11 , comprising:
transmitting, to the mobile station, allocation information, which indicates one or a plurality of the DVRBs with consecutive numbers that are allocated to the mobile station.
13. The method according to claim 11 , comprising:
transmitting, to the mobile station, allocation information, which is based on a starting DVRB number and the total number of one or a plurality of the DVRBs with consecutive numbers that are allocated to the mobile station.
14. The method according to claim 8 , wherein N d of the DVRBs are mapped to the PRBs in the same frequency within a subframe, where N rb is a total number of the DVRBs, and said mapping unit maps the DVRBs with the same number to the PRBs that are separated by a gap of N rb /N d in a frequency domain.