2024年4月20日发(作者：compaq是什么牌子电脑)

免插卡随身wifi工作原理

Using mobile WiFi that does not require a physical SIM card has

become increasingly popular among travelers, remote workers, and

anyone who needs fast and reliable internet on the go. The principle

behind this technology is quite simple, yet it provides a great deal of

convenience and flexibility for users.

使用不需要物理SIM卡的移动WiFi在旅行者、远程工作者和任何需要快速

可靠的移动互联网的人中变得越来越受欢迎。这项技术的原理相当简单，但

为用户提供了很大的便利和灵活性。

The working principle of a mobile WiFi device without needing to be

physically connected to a SIM card is based on its compatibility with

cellular networks. These devices are designed with built-in modems

that are capable of connecting to cellular networks, just like a

smartphone or tablet does. Essentially, the device acts as a mobile

hotspot, providing access to the internet to any WiFi-enabled device

within its range.

移动WiFi设备无需物理连接SIM卡的工作原理是基于它与蜂窝网络的兼容

性。这些设备设计有内置的调制解调器，可以连接到蜂窝网络，就像智能手

机或平板电脑一样。基本上，该设备充当移动热点，为其范围内的任何支持

WiFi的设备提供互联网访问。

One of the key components that enable a mobile WiFi device to work

without a physical SIM card is the electronic SIM, or eSIM. This is a

programmable SIM card that is embedded directly into the device,

eliminating the need for a physical SIM card. The eSIM can be

programmed with the user’s mobile network credentials, allowing

the device to connect to the cellular network without the need for a

physical SIM card.

使移动WiFi设备无需物理SIM卡工作的关键组件之一是电子SIM卡，简

称eSIM。这是一个可编程的SIM卡，直接嵌入到设备中，消除了对物理

SIM卡的需求。eSIM可以被编程为用户的移动网络凭据，使设备能够连接

到蜂窝网络，而无需物理SIM卡。

In addition to the eSIM, mobile WiFi devices without physical SIM

cards also rely on advanced software and firmware to manage the

connection to cellular networks. These devices are designed to

support various cellular network technologies, such as 4G, LTE, and in

some cases, even 5G. The software and firmware within the device

are responsible for establishing and maintaining a secure and stable

connection to the cellular network, ensuring that users have access

to high-speed internet wherever they go.

除了eSIM外，移动WiFi设备无需物理SIM卡还依赖先进的软件和固件来

管理与蜂窝网络的连接。这些设备设计支持各种蜂窝网络技术，如4G、LTE，

有些情况下甚至是5G。设备内的软件和固件负责建立和维护与蜂窝网络的

安全稳定连接，确保用户在任何地方都能访问高速互联网。

Another important factor in the working principle of mobile WiFi

devices without physical SIM cards is the service provider’s support

for eSIM technology. Not all mobile network operators support

eSIMs, so it’s crucial for users to check with their service provider

whether eSIMs are supported and if there are any additional fees or

requirements for using eSIM technology.

移动WiFi设备无需物理SIM卡的工作原理的另一个重要因素是电子SIM

技术的服务提供商支持情况。并非所有移动网络运营商都支持eSIM，因此

用户有必要与其服务提供商核实eSIM是否被支持，以及使用eSIM技术是

否有任何额外费用或要求。

In conclusion, the working principle of mobile WiFi devices that do

not require physical SIM cards involves the use of eSIM technology,

advanced software and firmware, and compatibility with cellular

networks. This technology provides users with the flexibility and

convenience of accessing high-speed internet without the need for a

physical SIM card, making it an ideal solution for travelers, remote

workers, and anyone who requires reliable internet on the go.

总之，移动WiFi设备无需物理SIM卡的工作原理涉及到eSIM技术的使用、

先进的软件和固件和与蜂窝网络的兼容性。这项技术为用户提供了无需物理

SIM卡即可访问高速互联网的灵活性和便利性，使其成为旅行者、远程工作

者和任何需要在移动中获得可靠网络的人的理想选择。