高频通信技术

[摘要] 毫米波是第5代移动通信系统的重要通信技术，利用大带宽承载大量信息，有效提升系统的吞吐量。第3代合作伙伴项目（3GPP）标准已经对毫米波频段做了划分，各个国家逐步对频谱进行分配。毫米波因其频谱特性，需要与大规模天线阵列结合使用，获得波束赋形增益。通过对波束设计与波束管理等核心技术的创新，实现热点高速传输。同时，通过高低频无线协作组网的方式，实现整个区域内的基础覆盖，以适应不同的通信场景需求。

[关键词] 毫米波；混合波束赋形；波束管理；高低频协作组网

[Abstract] Millimeter wave is an important technology for the 5th generation mobile communication system. By utilizing wide frequency band for high data transmission, millimeter wave can greatly increase the experienced data rates of users and the system throughput. The millimeter-wave bands have been standardized by third Generation Partnership Project (3GPP), and the spectrum has been allocated gradually by many countries. Due to its spectral characteristics, millimeter waves need to be combined with large-scale antenna arrays to obtain beamforming gain. The high-speed transmission of hotpots is realized by the innovation of beam design and beam management. In addition, the basic coverage in the entire area and the requirement for different communication scenarios can be satisfied by multi-frequency wireless cooperative networking.

[Keywords] millimeter wave; hybrid beamforming; beam management; multi-frequency cooperative networking