通感一体化系统的下行功率分配技术  

Downlink Power Allocation for Integrated Sensing and Communication System

作　　者：赵喆[1,2,3] 夏树强 马一华[1,2] 韩志强 杨立 孟骁[4] ZHAO Zhe;XIA Shuqiang;MAYihua;HAN Zhiqiang;YANG Li;Meng Xiao(ZTE Corporation,Shenzhen 518057,China;State Key Laboratory of Mobile Network and Mobile Multimedia,Shenzhen 518057,China;Shanghai Zhongxing Software Co.,Ltd.,Shanghai 201203,China;South University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]中兴通讯股份有限公司,广东深圳518057 [2]移动网络和移动多媒体技术国家重点实验室,广东深圳518057 [3]上海中兴软件有限责任公司,上海201203 [4]南方科技大学,广东深圳518055

出　　处：《移动通信》2022年第5期78-83,共6页Mobile Communications

基　　金：国家重点研发计划基金资助项目(2021YFB2900200)。

摘　　要：在通信感知一体化系统中,由于使用相同的时间、频率、功率等资源就可实现数据传输和目标感知两大业务功能,因此受到业界越来越多的重视。由于通信、感知在设计目标上的差异,通信和感知之间性能平衡是其中一个关键问题。以OFDM波形为例,对下行链路多用户功率分配对感知距离分辨能力的影响进行了分析探讨,以此为基础,进一步提出一种全新的通感一体化功率分配方法。所提方案可以自由调整通信与感知功能之间的权重,以达到良好的权衡并获得优于传统方案的通感一体化效能。Integrated sensing and communication(ISAC) systems have attracted extensive attention in the industry because they can realize two services of data transmission and target sensing by utilizing the same resources such as time, frequency, and power. The performance balance between communication and sensing is one of the key issues due to their different design targets. Taking the OFDM waveform as an example, the influence of the downlink multi-user power allocation on the distance sensing capability is analyzed. Based on this, a new power allocation method for ISAC is further proposed. The proposed scheme can flexibly adjust the weight between communication and sensing functions to achieve a good trade-off and obtain better performance than the traditional scheme.

关 键 词：通信感知一体化 功率分配 有效相关带宽 模糊函数 

分 类 号：TN929.5[电子电信—通信与信息系统]