One of the key techniques of Resilient Packet Ring (RPR) is ring distributed fairness algorithm.

弹性分组环（RPR）中最关键的技术之一是环路分布式公平算法。

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It is one of the key techniques in the high speed downlink packet access (HSDPA) and high speed uplink packet access (HSUPA).

混合自动重传请求是高速下行分组接入(HSDPA)和高速上行分组接入(HSUPA)中的关键技术。

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