5G NR (New Radio) incorporates concepts of novel technologies such as spectrum sharing, D2D communication, UDN, and massive MIMO. However, providing security and identifying the security threats to these technologies occupies the prime concern. This paper intends to provide an ample survey of security issues and their countermeasures encompassed in the technologies of 5G NR. Further, security concerns of each technology are defined mathematically. Thereby defining the impact on the factors of security. Moreover, a methodology is developed in which the influence on security due to artificially generated rain and artificially generated dust on the wireless communication network is studied. By doing so, an attacking scenario is identified, where a half-duplex attack in D2D communication is attained. Half-duplex attack specifies the attack solely on the downlink to spoof the allocated resources, with reduced miss-rate. Thus, ultra-reliable and adequate advances are required to be addressed to remove the obstacles that create a hindrance in achieving the secured and authenticated communicating network

翻译：5G NR(新电台)纳入了频谱共享、D2D通信、UDN和大型MIMIMM等新技术概念。然而,为这些技术提供安全并查明其安全威胁是首要关注的主要问题。本文件打算对5GNN技术所包含的安全问题及其对策进行充分调查。此外,每种技术的安全关切都有数学定义,从而界定了对安全因素的影响。此外,还开发了一种方法,研究人为产生的雨水和人为产生的无线通信网络尘土对安全的影响。这样,就确定了攻击情景,在D2D通信中实现了半双倍攻击。半倍攻击具体说明了仅对所分配资源的底线进行攻击,减少了误率。因此,必须克服极端可靠和充分的进展,以消除阻碍实现有保障和经过验证的通信网络的障碍。