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What is CBRS?

What is CBRS?

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CBR说明

CBRS or Citizens Broadband Radio Service is 150 MHz of spectrum (from 3.55 to 3.7 GHz) in the 3.5 GHz band (“Band 48”). Although CBRS connotes many things in the market, CBRS technically is 150 MHz (from 3.55 to 3.7 GHz) of United States-only spectrum and can be used for private mobile networks.

什么是cbrs用于？

CBRS频谱的主要用途是：

宏观扩展名，或为载体的宏观网络提供额外的无线容量，尤其是城市设置
Fixed wireless access(FWA) for backhaul
私人拥有和经营的移动网络为企业和市政当局。此页面侧重于此用例，适用于企业私人移动网络。

What are the three tiers for CBRS?

The three tiers of users for this spectrum are:

现任,如美国Navy and fixed satellite
Priority Access License (PAL), which are typically carriers that pay to license part of the spectrum
General Authorized Access (GAA) such as unlicensed enterprises that utilize this spectrum for private networks.

由于这些层同时共享CBRS频谱，因此FCC要求Gaa用户不能干扰PAL或现任用户，并且PAL用户不能干扰现任用户。需要频谱接入系统（SAS）来管理这种潜在的干扰。

What devices support CBRS?

几乎所有新的蜂窝电话，如Apple iPhone和Google像素，支持CBRS频段。来自Hewlett Packard，Dell和Lenovo的笔记本电脑以及来自Apple，三星和Zebra的平板电脑也支持这支乐队。CBRS兼容设备的生态系统将继续增长。

Why CBRS?

企业部署私人移动网络的CBR网络的主要原因是：

Improve wide-area outdoor coverage. CBRS-based cellular wireless covers more area per access point (AP) than a Wi-Fi AP, but at a lower per-AP throughput.
改善网络分割或部署单独的覆盖网络的能力，该网络经运行的频谱相对清晰，特别是对于诸如制造或工业网络，员工的单独语音通信网络，或零售点的临界流量设备。

您需要什么来部署基于私人CBRS的LTE移动网络？

Deploying private LTE networks has traditionally been far more complicated compared to deploying an enterprise-grade Wi-Fi network. LTE networks require an EPC (Evolved Packet Core) which manages the network, including device attachment, roaming between LTE small cells, and data plane traffic forwarding. LTE networks also require enterprises to provision and manage SIM (Subscriber Identity Management) cards or eSIMs for each device. Additionally, when using the CBRS spectrum for LTE wireless, enterprises must integrate with FCC certified systems for Spectrum Access Service (SAS) to manage potential interference from neighboring radios.

用于CBR的新订阅服务即将到来，集成所有这些硬件和软件组件，并准备好进行企业IT网络集成。与市场上的其他竞争解决方案相比，这种完全集成的解决方案大大简化了部署。

CBR的垂直用例是什么？

许多不同的垂直垂直使用CBR来补充现有的无线投资。一些例子是：

Warehousing and distribution centers:wireless connectivity at greater range for autonomous vehicles and robots
卫生保健：private mobile network connectivity for collaboration apps on smartphones assigned to staff
Large public venues:后台员工运营的网络分割，为客户服务保留无线网络
零售：在拥挤的商店环境中清洁，专用专用频谱，企业拥有的企业拥有设备
K-12学校：与户外无线回程的数字沙漠连接到学生家园

Do CBRS private mobile networks use LTE or 5G?

Today, CBRS private mobile networks frequently rely on LTE. However, in the future, it will also support 5G. When it supports 5G, we will see more CBRS-type implementations in Europe as well.

How do CBRS-based private networks compare to Wi-Fi?

The CBRS band is intended to accommodate different cellular standards, including 4G (LTE) and eventually 5G, but not Wi-Fi. All CBRS systems are currently based on LTE.

Enterprises are interested in CBRS as a way to augment, not replace, their Wi-Fi systems. Key differences between CBRS and Wi-Fi include:

Coverage:An indoor CBRS LTE AP covers roughly 4x more than a typical indoor Wi-Fi AP. Because CBRS operates in the 3.5 GHz spectrum, propagation is roughly the same as Wi-Fi operating at 2.4 GHz or 5 GHz.
Design:Deploying a CBRS system has traditionally been more complex than deploying a Wi-Fi system, partially because of the requirement of components such as an EPC and a SAS.
Cost:虽然基于CBR的LTE是一种较便宜的蜂窝解决方案，而不是传统的基于小型电池的架构，但CBR的每AP价格远高于典型的PER-AP Wi-Fi价格。然而，CBRS更高的覆盖范围和更低的相关布线和安装成本稍微关闭这种间隙。