RADIO COMMUNICATION SYSTEM, RADIO TRANSMISSION APPARATUS, AND RETRANSMISSION METHOD
First Claim
1. A radio communication system comprising:
- a selecting section that selects a localized resource block scheme or a distributed resource block scheme as a resource allocation scheme; and
an allocating section that allocates transmission data to frequency resources according to the selected resource allocation scheme,wherein, when identical transmission data is transmitted several times, the selecting section switches the resource allocation scheme from the localized resource block scheme to the distributed resource block scheme upon transmission except a first transmission.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided is a retransmission method capable of improving reception quality in retransmission control. In this method, for the first transmission, LRB (Localized Resource Block) method is selected as a resource allocation method according to the CQI fed back from the mobile station. A frequency resource having the best reception quality according to the LRB format is allocated for the transmission data. For the second transmission, the same resource allocation method (LRB) as the first transmission is used and the transmission data is allocated fro the same frequency resource. For the third transmission, the resource allocation method is switched from the method of the first and the second transmission and transmission data is allocated to the frequency resource by using DRB (Distributed Resource Block) format.
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Citations
16 Claims
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1. A radio communication system comprising:
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a selecting section that selects a localized resource block scheme or a distributed resource block scheme as a resource allocation scheme; and an allocating section that allocates transmission data to frequency resources according to the selected resource allocation scheme, wherein, when identical transmission data is transmitted several times, the selecting section switches the resource allocation scheme from the localized resource block scheme to the distributed resource block scheme upon transmission except a first transmission.
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2. A radio transmitting apparatus comprising:
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a selecting section that selects a localized resource block scheme or a distributed resource block scheme as a resource allocation scheme; and an allocating section that allocates transmission data to frequency resources according to the selected resource allocation scheme, wherein, when identical transmission data is transmitted several times, the selecting section switches the resource allocation scheme from the localized resource block scheme to the distributed resource block scheme upon transmission except a first transmission. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A retransmission method comprising, when identical transmission data is transmitted several times, switching a resource allocation scheme for the transmission data from a localized resource block scheme to a distributed resource block scheme upon transmission except a first transmission.
Specification