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移动通信中常见的干扰有什么_是什么阻止了移动宽带遇到“干扰”问题？

分类: 文章 • 2024-12-01 20:07:27
移动通信中常见的干扰有什么_是什么阻止了移动宽带遇到“干扰”问题？

移动通信中常见的干扰有什么

移动通信中常见的干扰有什么_是什么阻止了移动宽带遇到“干扰”问题？

With the constant increase in the usage of mobile devices, what is it that helps keep mobile broadband working as smoothly as it does? Today’s SuperUser Q&A post has the answer to a curious reader’s question.

随着移动设备使用率的不断提高，什么能使移动宽带保持其平稳运行？ 今天的“超级用户问答”帖子回答了一个好奇的读者的问题。

Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.

今天的“问答”环节由SuperUser提供，它是Stack Exchange的一个分支，该社区是由社区驱动的Q＆A网站分组。

Photo courtesy of rust.bucket (Flickr).

照片由rust.bucket(Flickr)提供 。

问题 (The Question)

SuperUser reader Hooli wants to know what stops mobile broadband from experiencing “interference” problems:

超级用户阅读器Hooli想要了解阻止移动宽带遭受“干扰”问题的原因：

Assuming that mobile broadband uses radio waves to transmit data, could the number of users connected to a 3G/4G network create an incredible amount of “interference” that would prevent it from working? Why does it work?

假设移动宽带使用无线电波来传输数据，连接到3G / 4G网络的用户数量是否会产生令人难以置信的“干扰”量，从而阻止其工作？ 为什么行得通？

What is it that stops mobile broadband from experiencing “interference” problems?

是什么阻止移动宽带出现“干扰”问题？

答案 (The Answer)

SuperUser contributor jcbermu has the answer for us:

超级用户贡献者jcbermu为我们提供了答案：

3G uses CDMA (Code Division Multiple Access).

3G CDMA使用(C ODE d暂无报价中号 ultiple 甲 CCESS)。

With CDMA, several transmitters can send information simultaneously over a single communication channel. The users share a band of frequencies employing spread-spectrum technology and a special coding scheme where each transmitter is assigned a code.

使用CDMA，几个发射机可以在单个通信信道上同时发送信息。 用户使用扩频技术和特殊的编码方案共享一个频带，其中为每个发射机分配一个代码。

Suppose you have a room in which people wish to talk to each other simultaneously. To avoid confusion, people could:

假设您有一个房间，人们希望同时互相交谈。 为避免混淆，人们可以：

  • Take turns speaking (TDMA or Time Division Multiple Access)

    轮流发言(TDMA或T IME d暂无报价中号 ultiple 甲 CCESS)

  • Speak at different pitches (Frequency Division)

    以不同的音调说话(频率划分)
  • Use different languages (CDMA)

    使用不同的语言(CDMA)

CDMA is like people speaking the same language; they can understand each other but reject the other languages. Similarly, in CDMA each group of users is given a shared code. Many codes occupy the same channel, but only users associated with a particular code can communicate.

CDMA就像人们讲相同的语言。 他们可以互相理解，但拒绝其他语言。 类似地，在CDMA中，每组用户被赋予一个共享代码。 许多代码占用相同的频道，但是只有与特定代码关联的用户才能进行通信。

Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.

有什么补充说明吗？ 在评论中听起来不错。 是否想从其他精通Stack Exchange的用户那里获得更多答案？ 在此处查看完整的讨论线程 。

翻译自: https://www.howtogeek.com/237539/what-stops-mobile-broadband-from-experiencing-interference-problems/

移动通信中常见的干扰有什么

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