Radio communication base station device and control channel arrangement method
First Claim
1. A base station apparatus comprising:
- an allocating unit configured to allocate, to a mobile station, one or a plurality of resource block(s) of uplink, the resource blocks being consecutive in a frequency domain;
a mapping unit configured to map a response signal to a resource of downlink, the resource being determined from an index of the allocated resource block; and
a transmitting unit configured to transmit the mapped response signal to the mobile station,wherein;
the indices of a plurality of the consecutive resource blocks are respectively associated with a plurality of the resources which are different in a frequency domain;
the plurality of the resources are respectively comprised of a plurality of subcarrier groups which are inconsecutive in a frequency domain; and
said mapping unit maps the response signal to the subcarrier group.
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Abstract
Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit (101) which allocates upstream line resource blocks continuous on the frequency axis for respective radio communication mobile stations by the frequency scheduling and generates allocation information indicating which upstream line resource block has been allocated to which radio communication mobile station device; and an arrangement unit (109) which arranges a response signal to the radio communication mobile station device in the downstream line control channels distributed/arranged on the frequency axis while being correlated to the continuous upstream line resource blocks according to the allocation information.
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Citations
19 Claims
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1. A base station apparatus comprising:
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an allocating unit configured to allocate, to a mobile station, one or a plurality of resource block(s) of uplink, the resource blocks being consecutive in a frequency domain; a mapping unit configured to map a response signal to a resource of downlink, the resource being determined from an index of the allocated resource block; and a transmitting unit configured to transmit the mapped response signal to the mobile station, wherein;
the indices of a plurality of the consecutive resource blocks are respectively associated with a plurality of the resources which are different in a frequency domain;
the plurality of the resources are respectively comprised of a plurality of subcarrier groups which are inconsecutive in a frequency domain; and
said mapping unit maps the response signal to the subcarrier group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for mapping a response signal comprising:
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allocating, to a mobile station, one or a plurality of resource block(s) of uplink, the resource blocks being consecutive in a frequency domain; and mapping a response signal to a resource of downlink, the resource being determined from an index of the allocated resource block, wherein;
the indices of a plurality of the consecutive resource blocks are respectively associated with a plurality of the resources which are different in a frequency domain;
the plurality of the resources are respectively comprised of a plurality of subcarrier groups which are inconsecutive in a frequency domain; and
the response signal is mapped to the subcarrier group. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification