6G电话网络可能比5G快9000倍
由于采用了大范围频率传输多数据流的新技术，下一代电话网络的性能将大大优于现有网络。
Wireless data has been sent at 938 gigabits per second, or more than 9000 times the average speed of a current 5G phone connection. This would be the equivalent of downloading more than 20 average-length movies a second. The speed is a record for multiplex data—where two or more signals are mixed.
无线数据的传输速度达到938Gb/s（千兆比特/秒），是目前5G网络平均速度的9000多倍，这相当于每秒下载20多部平均时长的电影。这一速度创下了多路数据的记录，即两个或多个信号混合在一起。
The weight of demand for wireless signal at large gatherings like concerts and sports games and at busy train stations often causes mobile phone networks to grind to a halt. This is mainly because of the limited bandwidth within which 5G networks operate. The part of the electromagnetic spectrum now allocated to 5G networks varies from country to country, but generally occupies relatively low frequencies below 6 gigahertz, and then only narrow bands of frequencies.
音乐会、体育比赛等大型集会以及繁忙的火车站对无线信号的巨大需求经常导致移动电话网络陷入瘫痪，这主要是因为5G网络运行的带宽有限。目前各国5G网络的电磁频谱有所不同，但一般都是6GHz(千兆赫兹)以下的相对较低频率，而且只占用窄频带。
To boost transmission rates, Zhixin Liu at University College London and his colleagues have used a wider range of frequencies than in any previous experiment of its sort: all the way from 5 gigahertz to 150 gigahertz, using radio waves and light.
为了提高传输速率，伦敦大学学院的刘志新（音译）和他的同事使用了比之前同类实验都更宽的频率：从5GHz到150GHz，使用无线电波和光。
Liu says digital-to-analogue converters are currently used to send zeros and ones through the air in radio waves, but they struggle at higher frequencies. So his team used that technology for the lower portion of the range and a different technique involving lasers at the higher end, combining both to create a wide band of data that can be picked up by hardware that could be integrated into next-generation smartphones.
刘说，数模转换器目前用在无线电波中通过空气发送0和1，但它们在较高频率下难以工作。因此，他的团队在低频段使用了这种技术，而在高频段使用激光技术，两者的结合创建了宽数据带，可用硬件集成到下一代智能手机中。
This allowed the team to send data through the air at 938 Gb/s, more than 9000 times as fast as the average UK 5G download speed. This could allow individuals to benefit from vast data rates, for applications that may not even have been conceived yet, or ensure that large groups of people can maintain enough bandwidth to stream video.
该团队的数据传输速度达938 Gb/s，比英国5G平均下载速度快9000多倍。这可以让个人受益于巨大的数据速率，用于还未构想出的应用，或确保很多人能够有足够的带宽来传输视频。
Although this is a record for multiplex data, single signals have been sent faster, exceeding 1 terabit per second.
虽然这是多路数据的纪录，但单路信号的传输速度更快，已超过1Tb/s（太比特/秒）。
Splitting the signals across wide frequency ranges is like taking the “narrow, congested road” of current 5G networks and turning it into “10 carriage motorways”, says Liu. “Just like with traffic, you need wider roads to carry more cars.”
刘说，在宽频范围内分割信号，就好比把当前5G网络的“狭窄、拥挤的道路”变成 “10条高速公路”。“就像交通一样，你需要更宽的道路来承载更多的汽车”。
Liu says his group is in talks with smartphone-makers and network operators, and that he hopes future 6G technology will be based on this work, but that other approaches under development are also vying for position.
刘说，他的团队正在与智能手机制造商和网络运营商洽谈，他希望未来的6G技术以这项工作为基础，但其他技术也在争夺这一地位。
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