移动通信网 程然
在美国政府力推 7GHz 频段作为 6G 主力频谱之际,Verizon 首席技术官 Yago Tenorio 对该频段的首次外场实测给出了直白的初步结论:"并不太令人鼓舞"。在日前举行的 Brooklyn AI-Native 6G 峰会上,Tenorio 公开表示,7GHz 相比 3.5GHz 在建筑穿透方面存在明显短板,未来基站 radio 设备需要更大的发射功率和更高的天线密度来弥补这一先天劣势。
首场外场实测:搭建房屋模拟室内场景
上个月,Verizon 与爱立信使用 7GHz 频段的预商用设备完成了业界首次 6G 外场通话。测试的重点并非速率演示,而是评估上中频段的信号传播与室内穿透特性。为了获得贴近真实的数据,Verizon 专门搭建了一座小型测试房屋,室内部署的终端设备被不同材质的墙体和窗户包围,用于量化各种建筑材料下的信号损耗。
结论并不意外:受更高频率物理特性限制,7GHz 在室内覆盖能力上不及现有中频段。Tenorio 强调,这并非无法克服的障碍,而是意味着行业需要付出更多努力——包括提升天线阵子密度、增加有源元件数量、提高输出功率以及放宽 EIRP(有效全向辐射功率)限制。即便如此,他坦言 7GHz 要达到 C-band(3.7-4.2GHz)的覆盖半径"仍存在相当挑战"。
【关键数据】
- 实测频段: 7GHz(7125-7400MHz)
- 6G 标准目标信道带宽: 最高 400MHz
- NTIA 在研候选频段: 4 个(1.6GHz / 2.7GHz / 4GHz / 7GHz)
- 7GHz 评估报告节点: 2026 年 12 月 10 日
- 6G 商用时间目标: 2030 年
频谱管线之困:400MHz 信道仍无着落
Tenorio 重申了他在去年同一场合提出的担忧:即便美国当前的频谱释放管线陆续推进,真正的问题在于如何获得 6G 标准中设定的最高 400MHz 宽的连续信道。他对现有候选频段逐一评估——2.7GHz "偏窄"、4GHz "不确定"、7GHz "面临挑战",直言没有任何一个频段能为 400MHz 信道提供清晰的落地路径。
更大的信道带宽不仅关乎容量。Tenorio 指出,在 Verizon 分别与诺基亚和高通开展的两项试验中,通感一体化(ISAC)的用例验证清晰地表明,目标探测与分辨能力与带宽成正比——若 ISAC 成为 6G 核心场景,宽信道将直接决定感知精度。这一判断为频谱政策敲响了警钟:碎片化的频谱分配将直接削弱 6G 的差异化能力。
政策层面,美国正在双线推进。NTIA 将于 12 月 10 日发布 7GHz 频段评估报告,明确可供商用的频谱规模、开放时间及联邦现有用户的迁移成本。NTIA 负责人 Arielle Roth 表示,希望 FCC 随后尽快启动规则制定并推进拍卖。与此同时,美国还将在明年的 ITU 世界无线电通信大会(WRC)上为 7GHz 争取国际认同,Roth 称这既是扩充 6G 中频资源的策略,也是对冲"对手将世界引向 6GHz 频段"的努力。
通往 2030:用例先行重塑 6G 叙事
对 Verizon 而言,这是 6G 进展密集的一年。除 7GHz 外场通话外,公司还获得了 FCC 临时许可,在洛杉矶实验室周边的 4GHz 频段测试 6G 用例,并新吸纳九家成员扩展 6G 创新论坛。Tenorio 表示,此举意在"反转剧本"——先识别用例,再针对性开发 6G 能力。目前浮出水面的方向包括 AI 可穿戴设备、ISAC 以及对"对称上行链路"的需求。
"要到 2030 年,我们还有大量工作要做——解决宽带中频频谱管线问题、为 AI 可穿戴设备找到解决方案,并确保 6G 真正成为驱动这些应用的一代技术。"Tenorio 的表态折射出美国运营商对 6G 落地路径的现实焦虑:频谱 availability、设备能力与用例定义三条战线都尚待收敛,7GHz 实测结果只是这场长跑中的第一个路标。
出处:Verizon CTO assesses 7GHz band for 6G after first call in the field
英文原文6G
Regulatory & Politics
Wireless
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Verizon CTO assesses 7GHz band for 6G after first call in the field
Verizon CTO Yago Tenorio shares initial finding from the carrier's 6G field tests using 7GHz and it's 'not super encouraging' for indoor penetration.
Michelle Donegan
,
Senior Editor, Light Reading
November 9, 2026
4 Min Read
(Source: Verizon)
Verizon CTO Yago Tenorio shared an initial verdict on using the 7GHz band for 6G after the carrier's recent field test and said the results were "not super encouraging" for indoor coverage and that future radios will need more power.
Speaking at the Brooklyn AI-Native 6G Summit last week, he said that "7GHz versus 3.5GHz, not surprisingly, has some challenges in penetrating buildings."
Verizon and Ericsson made the
first 6G call in the field
using pre-commercial equipment running in 7GHz spectrum last month. The test was set up to evaluate signal propagation and indoor penetration of the upper midband frequencies. The carrier built a small house for the user equipment with various wall and window materials to assess in-building signal losses in different scenarios.
The conclusion from the initial test is that 7GHz is not as good as midband spectrum for getting cellular signals inside buildings, as would be expected given the nature of higher frequencies.
Related:
Verizon and Ericsson make first 6G call outside in 7GHz band
"It doesn't mean that we can't sort it out. It means that a lot more work needs to happen on more density in the antenna, higher active element number, higher output power, higher EIRP [effective isotropic radiated power] limits," said Tenorio.
Even with all those advances, he said there are "still probably challenges for [7GHz] to match the C-band footprint." The C-band generally refers to spectrum between 3.7GHz and 4.2GHz.
US backs 7GHz for 6G
Verizon's technical assessment from early field trials comes as the US is pushing for 7GHz to be a prime band for 6G. It is one of four spectrum bands the
NTIA is studying
to free up for future mobile services. Along with 7GHz (7125MHz-7400MHz), the others under consideration are 1.6GHz (1675MHz-1695MHz), 2.7GHz (2700MHz-2900MHz) and 4GHz (4400MHz-4940MHz).
NTIA will publish its report on 7GHz at an event on December 10. This will include details on how much can be cleared for commercial use, when it can be accessed and the cost of relocating existing federal users from the band,
according to remarks
by NTIA chief administrator Arielle Roth.
"Once that report is released, we hope the FCC will move quickly to launch a rulemaking for a 7 GHz auction so we can bring this important block of mid-band spectrum to market as quickly as possible," she said.
The US is also lobbying for 7GHz at the ITU's World Radiocommunication Conference (WRC) next year. Roth said the band was part of the strategy to make more midband spectrum available for 6G as well as "counter efforts by our adversaries to steer the world towards the 6 GHz band."
Related:
Verizon CTO worries whether 6G will measure up in the US
Pipeline needs bigger bandwidth
Tenorio
reiterated worries
he discussed at last year's Brooklyn event that despite the US spectrum pipeline, the challenge is getting access to up to 400MHz-wide channels that are being set out in 6G standards. "That's still true," he said.
Assessing the spectrum that's coming online, he said 2.7GHz is "narrow," 4GHz is "uncertain" and 7GHz is "challenged, and none of them provide a clear line of sight to a 400MHz channel."
Bigger channel widths will be important for supporting use cases like integrated sensing and communication (ISAC), he said, noting that this was evident in two separate trials the carrier conducted with Nokia and Qualcomm.
"Your ability to detect and resolve targets is proportional to bandwidth … Beyond capacity alone, if ISAC becomes a use case for 6G, then you really want wide channels because that gives you precision and accuracy in sensing," he said.
Tenorio said the carrier has had a "busy year" for 6G. Along with the 7GHz field test call, the carrier was also granted a temporary license from the FCC to
test 6G use cases in 4GHz spectrum
in and around its lab in Los Angeles. It also recently expanded its 6G Innovation Forum with nine new members as part of efforts to "flip the script" by identifying use cases first and developing 6G capabilities to match them.
Related:
Verizon CTO: 6G needs a breakthrough for AI uplink demand
He noted some of those use cases are becoming clear – such as AI wearables, ISAC and the need for "symmetrical uplink" – but said there was more work needed to "shape 6G."
"We have a lot of work in front of us to get us to 2030 – sorting out the spectrum pipeline for wideband, midband spectrum opportunities, coming up with solutions for AI wearables, and making sure that 6G is going to be the generation that fuels these applications," said Tenorio.
About the Author
Michelle Donegan
Senior Editor, Light Reading
Michelle Donegan covers all things 5G, 6G and mobile tech for Light Reading. She has been writing about the telecoms sector since the early 1990s.
Her first job was with Global Telephony magazine in Chicago, where she got an intro to publishing and tech reporting. After moving to the UK in 1999, she has covered telecoms tech, business and policy issues at publications including Communications Week International and Total Telecom. She was also part of Light Reading’s European editorial team from 2007 to 2013. Between stints at Light Reading, she was busy freelancing and was a regular contributor to Mobile Europe, Mobile World Live, TelcoTitans, TM Forum, and more.
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