5G只是一种连接方式

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随着公共运营商将其新基础设施扩展到更多领域,5G无线世界的鼓声越来越响亮。但公共运营商5G不应忽视众多网络连接选项,企业可以使用这些选项来协调物联网和网络边缘运营

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与独立于LTE网络的所谓独立5G相比,这种方法的缺点包括运营成本增加和性能下降。例如,考虑到成本和电池电量需求,将5G调制解调器与低成本的封装跟踪传感器集成将是一个非启动方案

随着公共运营商将其新基础设施扩展到更多领域,5G无线世界的鼓声越来越响亮。但公共运营商5G不应忽视众多网络连接选项,企业可以使用这些选项来协调物联网(IoT)和网络边缘运营

移动网络运营商的扩大营销领域(MNO),5G是第五代移动网络标准,它将最终主宰无线电话和移动宽带甚至可能是最后一英里光纤和同轴宽带的替代品。5G将基于第三代合作项目(3GPP)5G新无线电(5G NR)标准。然而,一些运营商已经推出了“预标准”或过渡“4G+”阶段的早期实现

与独立于LTE网络的所谓独立5G相比,这种方法的缺点包括运营成本增加和性能下降。独立的5G需要大量的基础设施建设,以实现5G标准承诺的超可靠低延迟通信,可能需要相当长的时间和投资才能完全实现

物联网和网络边缘的世界中,5G NR部署提供高带宽、低延迟通信以支持数据密集型应用(如自动车辆操作、视频监控和优化城市交通流)以及增强的移动宽带方面可能至关重要。对于其他应用程序来说,这是一种过度使用

AT&T和Verizon等移动运营商已经部署了毫米波频段的5G-NR技术,该技术使用比前几代蜂窝无线技术更短的高频无线电波。这就需要额外的基站来匹配旧技术的信号穿透能力。但是,建设基础设施以提供任何接近全民覆盖的服务将需要数年时间。高频信号可能被墙壁、树木和其他障碍物阻挡,限制了它们工厂和其他密集场所使用的能力

某些应用中功率过大

对于许多应用而言,5G-NR技术价格过高且不合适。例如,考虑到成本和电池电量需求,将5G调制解调器与低成本(即低于1美元)的封装跟踪传感器集成将是一个非启动方案

Doyle Research的首席分析师Lee Doyle说:“5G不适合连接传感器;价格昂贵,调制解调器不可用,而且存传输速率问题。”。它更适合移动应用,例如警车中的物联网设备,或者作为物联网网关或路由器的广域网(WAN)链路,该网关或路由器通过Wi-Fi无线局域网(WLAN)或其他短距离无线选项(如蓝牙和Zigbee)聚合流量

随着企业迁移到下一代无线标准,即基于IEEE 802.11ax标准的Wi-Fi 6,Wi-Fi 6,它们将能够利用更快的带宽和以更低的功耗需求支持更多设备的能力。这将适合许多固定固定位置或固定空间内移动受限的设备

英文译文:

As public carriers extend their new infrastructure into more areas, the drumbeat for a 5G wireless world has grown louder. But public carrier 5G shouldn’t eclipse the multitude of network connectivity options that businesses can use to bring Internet of Things (IoT) and network edge operations into harmony.

In the amplified marketing arena of mobile network operators (MNOs), 5G is the fifth-generation mobile network standard on its way to eventual domination of wireless phones, mobile broadband and perhaps even an alternative to last-mile fiber and coaxial broadband. That 5G will be based on the 3rd Generation Partnership Project (3GPP) 5G New Radio (5G NR) standard. Some carriers, however, have rolled out earlier implementations that are “pre-standard” or a transitional “4G-plus” stage.

The downsides of such approaches include increased operational cost and diminished performance compared with so-called standalone 5G, which operates independently from LTE networks. Standalone 5G requires considerable infrastructure buildout to enable the ultra-reliable low-latency communications the 5G standard promises and could take considerable time and investment to fully materialize.

In the world of IoT connectivity and the network edge, 5G NR deployments may be crucial in providing the high-bandwidth, low-latency communication to support data-intensive applications such as autonomous vehicle operations, video surveillance and optimizing citywide traffic flows, as well as enhanced mobile broadband. For other applications, it’s overkill.

MNOs such as AT&T and Verizon have deployed the millimeter-wave spectrum of 5G NR technology, which uses higher-frequency radio waves with a shorter range than previous generations of cellular wireless. That requires additional base stations to match the signal penetration of older technology. But building out the infrastructure to provide anything approximating universal coverage will take several years. Higher-frequency signals may be blocked by walls, trees and other obstacles, limiting their ability for use in factories and other dense settings.

Overpowered for Some Applications

For many applications, 5G NR technology is simply overpriced and unsuitable. Integrating a 5G modem with a low-cost (i.e., sub-$1) package tracking sensor, for example, would be a non-starter given cost and battery power demands.

“5G is not great for connecting sensors; it’s expensive, the modems aren’t available and there’s a tariffing issue,” said Lee Doyle, a principal analyst at Doyle Research. It’s more suitable for mobile applications, such as IoT devices in a police car, or perhaps as a wide area network (WAN) link for an IoT gateway or router that aggregates traffic from sensors connecting via Wi-Fi wireless local area networks (WLAN) or other short-range wireless options such as Bluetooth and Zigbee.

As enterprises migrate to the next-generation wireless standard, Wi-Fi 6, which is based on the IEEE 802.11ax standard, they’ll be able to exploit faster bandwidth and the ability to support additional devices with lower power-consumption demands. That will suit many devices that are fixed in place or with limited mobility within a fixed space.

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