| 摘要 |
A method and apparatus for adaptive and preemptive scheduling of transmissions is provided that reduces the end-to-end delay for ARQ transmissions in centrally controlled multi-hop communication systems. During operation, a base station provisions resources for possible future ARQ retransmissions in advance, thereby obviating the need to wait for allocations from the base station between transmission attempts on 'remote' hops. More specifically, a base station scheduler estimates the average number of transmission attempts that are likely to occur on a given hop for a given connection and preemptively allocates resources for this number of attempts. The average number of transmission attempts is estimated based on, for example, channel conditions or a recent history of transmission attempts collected and stored by the base station.
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