评估 Voyager 的 5G 网络：NVIDIA 利用 Altair 5G 无线网络解决方案节省时间和成本
技术
- 网络与连接 - 5G
- 网络与连接 - 射频识别
适用行业
- 电网
- 电信
适用功能
- 产品研发
- 质量保证
用例
- 楼宇自动化与控制
- 实验自动化
服务
- 系统集成
- 测试与认证
关于客户
NVIDIA 成立于 1993 年，一直是加速计算领域的先驱。该公司于 1999 年发明的 GPU 引发了 PC 游戏市场的增长，重新定义了计算机图形学，并点燃了现代人工智能 (AI) 时代。 NVIDIA 现在是一家全栈计算公司，其数据中心规模的产品正在重塑整个行业。 NVIDIA 建造了一座占地 750,000 平方英尺的大型建筑，名为 Voyager，它既指的是《星际迷航》中的 Voyager，也指的是 NVIDIA 中的“v”。大本营接待区位于山脚下，有多层结构，散布着人员、办公室和花园空间。
挑战
NVIDIA 是加速计算领域的先驱，建造了一座占地 750,000 平方英尺的巨型建筑，名为 Voyager。为了配合架构创新，NVIDIA 希望拥有一个同样令人印象深刻的专用 5G 网络来支持多接入边缘计算 (MEC) 应用程序并利用未经许可的公民宽带无线电服务 (CBRS) 频段。第一个 MEC 应用需要在大堂区域使用 5G 摄像头进行智能视频分析。网络开发面临的挑战是 CBRS 频谱内的 150 MHz 限制。为了解决这个问题，NVIDIA 决定使用 100 MHz 最小带宽来维持所需的吞吐量水平，并为所有无线电单元使用相同的频率载波。这使得 5G 网络所需的吞吐量具有挑战性。 NVIDIA 还希望比较两种不同供应商的无线电单元，一种具有定向传输功能，一种具有全向传输功能，每个单元都有 4 个下行链路 (DL) 多输入多输出 (MIMO) 层和 2 个上行链路 (UL) MIMO 层。
解决方案
NVIDIA 希望最大限度地提高所需建筑内覆盖区域的吞吐量。然而，确定最佳无线电单元位置和天线方向的传统测试和物理部署成本高昂且耗时。相反，NVIDIA 部署了 Altair 的模拟驱动型网络规划和优化解决方案。 Altair 开发了 Voyager 代理模型，其中包括影响建筑物无线传播的所有方面。在集成系统工作流程中，团队使用 Altair® HyperWorks® 进行几何清理； Altair® Feko® 与 Altair® WinProp™ 模块用于材料分配、无线传播和网络分析； Altair® HyperStudy® 用于优化无线电单元的数量和位置。 Altair 的初步分析使用 WinProp 的主要路径模型（一种用于无线覆盖分析的快速、准确的预测模型）确定了最佳无线电单元位置和方向。在无线电单元处于最佳位置后，Altair 使用 WinProp 的全 3D 射线追踪模型进行了最终分析。
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