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    • 5. 发明授权
    • Apparatus and method for transmitting data using multi-round contention avoidance
    • 使用多轮争用避免传输数据的装置和方法
    • US07684367B2
    • 2010-03-23
    • US12041413
    • 2008-03-03
    • Jeong-Kyun YunSae-Woong BahkJae-Hyun AhnDai-Kwan KimJong-Hyung Kwun
    • Jeong-Kyun YunSae-Woong BahkJae-Hyun AhnDai-Kwan KimJong-Hyung Kwun
    • H04W4/00
    • H04L12/66H04L43/0888
    • An apparatus and method for transmitting data by using Multi-round Contention Avoidance (MrCA) are provided. The method includes initializing a contention window for each of a plurality of contention rounds and setting a backoff counter corresponding to a size of the contention window for each contention round, starting from a first contention round to a last contention round, decrementing a backoff counter of a corresponding contention round in a time slot unit and transmitting data when the decremented backoff counter is zero and when the corresponding contention round is a last contention round. Accordingly, the number of contending nodes is exponentially decreased for each contention round, resulting in significant decrease in a collision probability in addition to improving fairness on channel use among users.
    • 提供了一种使用多轮避免避免(MrCA)发送数据的装置和方法。 该方法包括:对于多个争用回合中的每一个初始化争用窗口,并且从第一争用轮到最后一个争用轮从第一争用轮到第一争用轮设置对应于每个争用轮的争用窗口的大小的退避计数器,递减倒退计数器 在时隙单元中相应地进行争用,并且当递减的退避计数器为零时以及当对应的争用轮次是最后的争用轮次时发送数据。 因此,竞争节点的数量对于每个争用轮次指数地减少,导致冲突概率的显着降低,除了提高用户之间信道使用的公平性。