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通用分组无线业务GPRS是覆盖于GSM移动通信网之上的分组交换数据网络。提出了一种基于载干比C/I的下行功率控制算法。在此基础上,根据载干比C/I与误码率BER的函数关系,提出一种基于误码率的下行功率控制算法。最后,通过使用基于MLD平台设计的仿真软件,分析比较了这两种算法对系统性能的改善。
General Packet Radio Service GPRS is a packet-switched data network covering the GSM mobile communication network. A downlink power control algorithm based on C / I ratio is proposed. Based on this, a downlink power control algorithm based on bit error rate (BER) is proposed according to the function of BER C / I and bit error rate BER. Finally, through the use of simulation software based on MLD platform design, the performance of these two algorithms is analyzed and compared.