SCHEDULING APPARATUS AND METHOD IN A DISTRIBUTED ANTENNA SYSTEM
First Claim
1. A scheduling method in a distributed antenna system, comprising the steps of:
- classifying each of a plurality of Mobile Stations (MSs), respectively corresponding to each subchannel, as a Single Transmission (ST) MS or a Cooperative Transmission (CT) MS according to a CT criterion;
selecting an MS with a maximum channel capacity from among the classified MSs;
allocating resources to a corresponding subchannel when the selected MS is the ST MS, and allocating resources using a CT scheduling technique when the selected MS is the CT MS; and
repeating the classifying, selecting and allocating steps until an allocation of resources is completed.
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Abstract
A scheduling method in a distributed antenna system is provided. Each of a plurality of Mobile Stations (MSs), respectively corresponding to each subchannel, are classified as a Single Transmission (ST) MS or a Cooperative Transmission (CT) MS according to a CT criterion. An MS with a maximum channel capacity is selected from among the classified MSs. Resources arc allocated to a corresponding subchannel when the selected MS is the ST MS, and resources arc allocated using a CT scheduling technique when the selected MS is the CT MS. The classifying, selecting and allocating steps are repeated until allocation of resources is completed.
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Citations
7 Claims
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1. A scheduling method in a distributed antenna system, comprising the steps of:
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classifying each of a plurality of Mobile Stations (MSs), respectively corresponding to each subchannel, as a Single Transmission (ST) MS or a Cooperative Transmission (CT) MS according to a CT criterion; selecting an MS with a maximum channel capacity from among the classified MSs; allocating resources to a corresponding subchannel when the selected MS is the ST MS, and allocating resources using a CT scheduling technique when the selected MS is the CT MS; and repeating the classifying, selecting and allocating steps until an allocation of resources is completed. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A scheduling apparatus in a distributed antenna system, comprising:
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an input unit for receiving a Signal-to-interference plus Noise Ratio (SINR) from a Relay Station (RS) for each of a plurality of subchannels; a determination unit for calculating a transmission capacity depending on the SINR for each of the plurality of subchannels, received from the input unit, applying the transmission capacity to a predetermined Cooperative Transmission (CT) determination formula, and determining a Single Transmission (ST) MS and an CT MS according to the result; a parallel packet scheduler for simultaneously allocating a plurality of serial resources on a spatial axis, wherein an MS is allocated the serial resources in sequence from one Base Station (BS) or from one or more RSs to which the MS belongs; and a channel allocator for allocating a one of the plurality of subchannels to the MS by accepting a subchannel of the parallel packet scheduler.
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Specification