电磁辐射对移动通信系统影响的研究

Research on the Electromagnetic Radiation Effects to Mobile Communications System

本文从电磁辐射对人体影响的角度分析了移动通信系统的传输特性,论证了在电磁辐射约束的条件下,单用户的上行链路相对于单用户的下行链路更容易达到传输能力饱和。随着上下行链路传输能力的增长,系统将会越来越表现出单用户的上行容量受限,而单用户的下行链路却拥有更大的传输速率余量和更大的发射功率余量,单用户的上下行链路具有显著的非对称传输特性,并在此基础上探讨了提高上行链路传输容量的方法。

This article discusses the transmission characteristics of mobile communications system in view of the effects of electromagnetic radiation to human body. It demonstrates that under the restriction of electromagnetic radiation, the uplink transmission rate for one user is easy to reach transmission capacity saturation. With the growth of uplink and downlink transmission requirement the system will show more and more uplink-capacity restriction for one user, while there is much higher transmitting rate and power margin in the downlink, the asymmetric characteristic between uplink and downlink for one user is notable. The article also analyses methods that improve uplink transmission capacity.