Small cell system and method for allocating resource thereof
First Claim
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1. A method of allocating a resource in a small cell system, the method comprising:
- performing a base station selection for each user and resource allocation that maximize a signal-to-noise-plus-interference ratio (SINR) by using a signal-to-noise ratio (SNR) feedbacked from a user terminal;
broadcasting base station selection for each user and resource allocation information; and
sharing a user terminal data necessary for all small cell base stations by using the resource allocation information and performing a downlink data transmission cooperatively,wherein performing a base station selection for each user and a resource allocation comprises allocating a first user terminal to a first resource block in a first small cell base station which has a maximum SINR value among resource blocks, and removing slots of the first resource block of a second small cell base station of a second user terminal and a third user terminal, and the first resource block of a third small cell base station, when the first to a third resource blocks exist between the first to the third user terminals, and between the first to the third small cell base stations.
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Abstract
Provided is a method of allocating a resource in a small cell system. The method includes: selecting a temporary base station for each user terminal; measuring a signal-to-noise ratio (SNR) through a downlink pilot in a small cell base station; transmitting the signal-to-noise ratio measured for each user terminal to the temporary base station; receiving base station selection and resource allocation information from the small cell base station; and selecting the small cell base station to which most frequency resource block are allocated as a home base station.
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Citations
10 Claims
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1. A method of allocating a resource in a small cell system, the method comprising:
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performing a base station selection for each user and resource allocation that maximize a signal-to-noise-plus-interference ratio (SINR) by using a signal-to-noise ratio (SNR) feedbacked from a user terminal; broadcasting base station selection for each user and resource allocation information; and sharing a user terminal data necessary for all small cell base stations by using the resource allocation information and performing a downlink data transmission cooperatively, wherein performing a base station selection for each user and a resource allocation comprises allocating a first user terminal to a first resource block in a first small cell base station which has a maximum SINR value among resource blocks, and removing slots of the first resource block of a second small cell base station of a second user terminal and a third user terminal, and the first resource block of a third small cell base station, when the first to a third resource blocks exist between the first to the third user terminals, and between the first to the third small cell base stations. - View Dependent Claims (2, 3, 4, 5)
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6. A method of allocating a resource in a small cell system, the method comprising:
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performing a base station selection for each user and resource allocation that maximize a signal-to-noise-plus-interference ratio (SINR) by using a signal-to-noise ratio (SNR) feedbacked from a user terminal; broadcasting base station selection for each user and resource allocation information; and sharing a user terminal data necessary for all small cell base stations by using the resource allocation information and performing a downlink data transmission cooperatively, wherein performing a base station selection for each user and a resource allocation comprises sharing the signal-to-noise ratio feedbacked from the user terminal and calculating an average SINR by using the signal-to-noise ratio, by the small cell base stations, wherein performing a base station selection for each user and a resource allocation comprises calculating the average SINR according to a following equation 2,
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7. A small cell system comprising:
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a base station selection and resource allocation unit configured to perform a base station selection for each user and resource allocation by using a signal-to-noise ratio (SNR) feedbacked from a user terminal within a cluster; a broadcast unit configured to broadcast base station selection and resource allocation information determined by the base station selection and resource allocation unit; and a cooperative transmission unit configured to share user data information with all small cell base stations within the cluster by using the resource allocation information and perform a downlink data transmission cooperatively, wherein the base station selection and resource allocation unit allocates a first user terminal to a first resource block in a first small cell base station which has a maximum SINR value among resource blocks, and removes slots of the first resource block of a second small cell base station of a second user terminal and a third user terminal, and the first resource block of a third small cell base station, when the first to a third resource blocks exist between the first to the third user terminals, and between the first to the third small cell base stations. - View Dependent Claims (8, 9, 10)
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Specification