排队策略与缓冲技术是交换矩阵设计的核心，同时也是交换矩阵时延产生的主要因素。

The queue strategy and buffer technique are the core of switch matrix design and they are also the main factors in time delay generation of switch matrix.

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高速IP路由器一般采用基于定长信元的交换结构，其可扩展性和性能分别受排队策略和调度算法的影响。

Most high-speed IP routers exploit cell-based switching fabrics, whose scalability and performance are mainly affected by queuing scheme and scheduling algorithm.

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考虑到数据调用和更高的优先级切换语音呼叫的特点，该计划提供了切换语音呼叫优先级抢占的排队策略相结合。

Taking into account the characteristic of data calls and the higher priority of handoff voice calls, this scheme gives handoff voice calls a preemptive priority with combination of queuing strategy.

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