移动通信网 程然
有线电视接入设备厂商 AOI（Applied Optoelectronics）确认将在即将举行的 SCTE TechExpo 展会上演示其 3GHz 放大器概念产品。这一动作释放出明确信号：在 DOCSIS 4.0 部署加速的环境下，有线运营商对更高频谱容量 HFC 网络设备的需求正在升温。3GHz 带宽能力被视为从当前 1.2GHz 网络向全频谱利用演进的关键硬件支撑。
3GHz 放大器：HFC 网络的频谱天花板之争
放大器是 HFC 网络中最核心的有源器件之一，其带宽能力直接决定了网络可承载的下行频谱上限。传统 HFC 网络多运行在 750MHz 至 1GHz 范围，随着 DOCSIS 3.1 的普及，主流运营商已将网络升级至 1.2GHz。而 DOCSIS 4.0 规范定义了两种扩展路径——频分复用的 FDD 模式与扩展频谱的 ESD 模式，后者要求网络支持最高 1.8GHz 甚至更高的频谱范围。
AOI 此番展示 3GHz 放大器概念，明显超出了 DOCSIS 4.0 当前标准的最低要求。从行业视角看，这类“超前带宽”设计有两层考量：一是为运营商提供更长的网络生命周期，避免短期内重复投资；二是兼容光纤深入（Fiber Deep）与远程 MAC/PHY（R-PHY）架构下的频谱预留策略。康卡斯特、Charter 等美国头部运营商近年推进的中分割（mid-split/high-split）改造，同样需要放大器等有源器件全面配套升级。
【关键数据】
- 放大器目标带宽: 3GHz（概念演示阶段）
- 当前主流 HFC 网络带宽: 1.2GHz
- DOCSIS 4.0 ESD 模式频谱要求: 最高 1.8GHz（3GHz 方案显著超前于标准下限）
- 演示场合: SCTE TechExpo 2026（9 月举行）
有线与光纤的竞合：技术演进压力下的选择
需要注意的是，本次素材为简短展会预告，AOI 概念产品的具体技术参数——包括增益平坦度、噪声系数、功耗水平以及商用时间表——尚未披露。从概念演示到规模商用，通常还需经历实验室验证、现网试点和批量部署三个阶段，周期往往以年计。同期展会上，Hitron 发布了便携式 DOCSIS 4.0 现场测试仪，Lightcurve 与 Harmonic 合作加速 MDU 场景连接，显示有线接入产业链正围绕 DOCSIS 4.0 部署形成完整配套。
在光纤到户（FTTH）持续挤压 HFC 市场空间的大环境下，有线运营商面临“全光改造”与“挖掘同轴存量价值”的路线抉择。3GHz 放大器代表的是后一条路径的技术上限：通过最大化既有同轴电缆网络的频谱利用率，以更低成本承接千兆乃至多千兆宽带需求。对设备商而言，能否在这一细分市场建立先发优势，将直接影响未来数年 HFC 改造周期的订单格局。随着 SCTE TechExpo 临近，业界可以关注该概念产品的实测表现及潜在运营商合作伙伴的表态，这将是判断 3GHz 路线商业可行性的重要风向标。
出处：AOI to demo 3GHz amp concept at TechExpo
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# AOI to demo 3GHz amp concept at TechExpo
AOI said it will demonstrate a proof-of-concept version of a 3GHz amp at next week's SCTE TechExpo in Atlanta. #pressrelease
September 24, 2026
1 Min Read
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AOI (NASDAQ: AAOI), a leading provider of advanced optical and HFC networking products powering AI, today announced plans for a future-forward 3.0GHz demo at next week's SCTE TechExpo in Atlanta, September 29 – October 2, at booth H1448.
The company has also published a new whitepaper examining the cable TV (CATV) industry's plans to expand network capacity to meet bandwidth demands, titled "Beyond 1.8 GHz: Evaluating Paths to 3.0 GHz HFC Networks."
While the cable industry is working to deploy DOCSIS 4.0 at 1.8GHz capacity, operators and suppliers are already evaluating what comes next. Extending HFC network capacity toward 3.0GHz brings increased focus to the physical plant, looking at amplifiers, power, and the overall outside plant architecture. The DOCSIS and DAA layer will need to evolve as well, to fill the spectrum when available.
As considerations are discussed for a 3.0GHz standard, AOI’s proof-of-concept demo and whitepaper are intended to help the industry understand the engineering requirements the new standard will need to address.
Read the full press release [here](https://newsroom.ao-inc.com/news-releases/aoi-brings-first-live-quantum30-3-0ghz-concept-demo-to-scte-techexpo-in-atlanta/).
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