For blocking rate and dropping rate are two discrepant variables, we propose a variable of service grade that integrates the two variables as metrics for system service quality.
分析了考虑切换优先并采用预留保护信道法的无线系统的性能，提出利用一个综合阻塞率和掉线率这两个性能指标的系统服务等级变量作为系统服务质量的指标。
In a mobile environment, 3G/WLAN dual-mode terminals can provide a wide range of services at high rate with variable bandwidth and Quality of Service (QoS) assurance.
在移动环境中，3G/WLAN网络双模终端可提供无处不在、带宽可变、服务质量（QoS）可保证的多种高速率业务。
In a mobile environment, 3G/WLAN dual-mode terminals can provide a wide range of services at high rate with variable bandwidth and Quality of Service (QoS) assurance.
在移动环境中，3G/WLAN网络双模终端可提供无处不在、带宽可变、服务质量（QoS）可保证的多种高速率业务。
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