In this paper, we analyze the impact of delaying delay-tolerant calls under certain conditions in cellular networks. We propose to queue the call if the user agrees when the terminal has bad radio conditions and the system is loaded. The call is served as soon as radio conditions become good or the current load goes below a given threshold. We model the system as a continuous-time Markov chain, which allows us to compute the blocking probability, the mean waiting time and the mean service time. Numerical results show that when the proportion of users with delay tolerance is 20%, the system can bear 16% more calls with the same blocking probability, and 113% more calls if 80% of users are delay tolerant.

在本文中，我们分析了蜂窝网络中某些条件下延迟延迟的呼叫的影响。如果用户同意在终端的无线状况不佳且系统已加载时，我们建议将呼叫排队。无线电条件变好或当前负载低于给定阈值时，将立即呼叫。我们将系统建模为一个连续时间的马尔可夫链，这使我们能够计算出阻塞概率，平均等待时间和平均服务时间。数值结果表明，当具有时延容忍度的用户比例为20％时，在相同的阻塞概率下，系统可以承受多出16％的呼叫；如果容忍度为80％的用户，则系统可以承受多出113％的呼叫。