为解决GSM最差小区话音拥塞和掉话的翘尾效应,提出在突发话务量的情况下,通过限制数据业务静态信道的比例,采取适当允许话音业务优先抢占动态分组数据信道(PDCH)的话音优先策略。此策略最大可能满足话音业务信道需求,缓解突发性话音拥塞和掉话现象。经省内外多城市试点测试,优化效果明显,具有一定的工程实用价值。 In order to solve the problem of the tailgating effect of voice congestion and call drop in the worst cell of GSM, this paper proposes to allow the voice service to preempt the preemption of Dynamic Packet Data Channel (PDCH) by restricting the proportion of static channels of data traffic in the case of sudden traffic, Voice priority strategy. This strategy may meet the voice service channel requirements to alleviate the sudden voice congestion and dropped calls. Pilot tests by multi-city inside and outside the province, the optimization effect is obvious, with a certain practical value of the project.