Wireless communication apparatus and wireless communication method
First Claim
Patent Images
1. A wireless communication apparatus, comprising:
- a receiver that is configured to receive a control signal; and
a blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical resource blocks (PRBs) in which the same precoding is used in a unit of an RB group (RBG) that is composed of a plurality of PRBs, wherein the adjacent PRBs on which the blind decoding is performed are determined according to an aggregation size of the corresponding RBG unit, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated.
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Abstract
To improve the channel estimation accuracy of “DL grant” that instructs data allocation of a downlink of R-PDCCH. A wireless communication apparatus according to an aspect of the invention includes a receiver that is configured to receive a control signal, and a blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical, resource blocks (PRBs) in which the same preceding is used in a unit of an RB group (RBG) that is composed of the plurality of PRBs, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated.
32 Citations
13 Claims
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1. A wireless communication apparatus, comprising:
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a receiver that is configured to receive a control signal; and a blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical resource blocks (PRBs) in which the same precoding is used in a unit of an RB group (RBG) that is composed of a plurality of PRBs, wherein the adjacent PRBs on which the blind decoding is performed are determined according to an aggregation size of the corresponding RBG unit, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated. - View Dependent Claims (2, 13)
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3. A wireless communication apparatus, comprising:
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a search space determiner that is configured to determine a search space in a unit of an RB group (RBG) that is composed of a plurality of physical resource blocks (PRBs); an aggregation size determiner that is configured to determine an aggregation size of a control signal for a communication partner apparatus based on a channel quality between the wireless communication apparatus and the communication partner apparatus; an allocator that is configured to allocate the control signal for the communication partner apparatus to a plurality of adjacent PRBs in which the same precoding is used among the plurality of PRBs included in the search space, based on the determined aggregation size and the channel quality, wherein the adjacent PRBs are determined according to the aggregation size of the corresponding RBG unit; and a transmitter that is configured to transmit the allocated control signal for the communication partner apparatus. - View Dependent Claims (4, 5, 6, 7, 8, 9, 12)
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10. A wireless communication method, comprising:
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receiving a control signal; and performing a blind decoding, as a search space, of a plurality of adjacent physical resource blocks (PRBs) in which the same precoding is used in a unit of RB group (RBG) that is composed of a plurality of PRBs, wherein the adjacent PRBs on which the blind decoding is performed are determined according to an aggregation size of the corresponding RBG unit, and detecting a resource area to which a control signal for an own apparatus that is included in the control signal is allocated.
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11. A wireless communication method, comprising:
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determining a search space in a unit of an RB group (RBG) that is composed of a plurality of physical resource blocks (PRBs); determining an aggregation size of a control signal for a communication partner apparatus based on a channel quality between an own apparatus and the communication partner apparatus; allocating the control signal for the communication partner apparatus to a plurality of adjacent PRBs in which the same precoding is used among the plurality of PRBs included in the search space based on the determined aggregation size and the channel quality, wherein the adjacent PRBs are determined according to the aggregation size of the corresponding RBG unit; and transmitting the allocated control signal for the communication partner apparatus.
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Specification