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分析了载波聚合中MAC层聚合和物理层聚合两个实现方法,结合电力应用需求,提出了HARQ的混合调度控制的载波聚合应用策略以及230 MHz频段的子载波分配方法,利用载波聚合与频谱感知技术,实现基于230 MHz频段的无线通信系统,完成了实验室功能测试,并验证了本系统在工作时不会对原230 MHz电台造成任何影响。
In this paper, we analyze the implementation of MAC layer aggregation and physical layer aggregation in carrier aggregation. Combining with the demand of power application, this paper proposes a carrier aggregation application strategy based on HARQ hybrid scheduling control and subcarrier allocation method in 230 MHz band. Carrier aggregation and spectrum sensing Technology to enable wireless communication systems based on the 230 MHz band to perform laboratory functional tests and to verify that the system will operate without any impact on the original 230 MHz radio.