The greatestlowerbound of constraint was the bound of tasks for satisfying the constraint and can be used to guarantee the "meet row" weakly hard real-time constraint.
下确界限制用于保证任务满足“至少满足”弱硬实时限制,是任务满足限制的下确界。
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In this paper, some important properties of cone lowerbound and the greatest cone lowerbound are introduced, the corresponding proofs are presented.