There exits contradiction between the qos guarantee and complexity of channel assignment algorithms . and the channel search time is correlated with the channel utilizing efficiency . so each solution plan is the compromise among these factors 因为在系统的通信服务质量和信道分配算法执行的复杂性之间存在矛盾，而且它与信道搜寻时间和信道利用率也有关系，所以任何一种解决方案的提出总是不同矛盾折中的结果。
