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Monthly Archives: April 2021

  1. Underground coal mine 5G coverage

    Underground coal mine 5G coverage

    In 2020, 5GtoB will accelerate significantly, and vertical industries will gradually become important users of 5G, and they will be deeply involved in the verification of 5G network capabilities to examine whether 5G meets the needs of the industry. In the test, due to factors such as inconsistent business requirements, single test scenarios, and failure to consider the capabilities of equipment manufacturers, industry users have different perceptions of 5G network capabilities. This article conducts a quantitative and qualitative analysis of the 5G coverage, business requirements and network planning of underground mines, and provides a certain reference for 5G network planning in coal mines.

    1. Data analysis of 5G coverage test in underground coal mine

    1) Underground test in Xinyuan Coal Mine
    In the test of Xinyuan Coal Mine of Shanxi Huayang New Materials Group, a 2.6GHz four-channel leather station was deployed, with a single channel transmitting power of 21.7

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  2. What’s the difference between firewalls , routers and secure web portals

    What’s the difference between firewalls , routers and secure web portals

    Many of us don't understand the difference between a router and a gateway when we talk about cybersecurity devices. When we ask ourselves how a secure web gateway differs from a firewall or UTM, we always offer ambiguous, even confusing answers. We can say that everything is so, in a sense it is correct. But variations remain.

    The tendency to refer to modem routers as gateway devices has been and continues to be. This is true, since the word "modem" is now completely outdated. A modem, abbreviated as "modulator-demodulator", refers to a device that demodulates an analog signal from a telephone line into digital information for use by a computer and modulates reverse digital data in analog mode (relay). The technology we use today is different for broadband, but the word modem is still widely used.

    Now on a wooden router, this is a network traffic control device. There are two IP addresses for routers. This is because all simple four-port wireless routers have two NIC

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  3. Do you know how 5G works

    Do you know how 5G works

    5G certainly represents one of the hottest topics in the world of technologies. Not only does it substantially improve the performance of previous generation networks such as 4G, but it differs from it for a reason clearly linked to the connection method. In the case of 5G, there are two ways to connect: on the one hand, on the Sub-6 GHz frequencies, on the other hand, on the so-called millimeter waves (mmWave) above 24 GHz.

    The analysis of Digital Trends shows that when your smartphone connects to 5G, you could actually connect to both of these two types of 5G network coverage.

    But depending on whether you connect to sub-6 GHz or mmWave 5G frequencies there are - big differences in terms of performance.


    What is 5G sub-6Ghz?

    The differences between the Sub-6 and mmWave millimeter waves are quite simple: The Sub-6 5G uses frequencies that are below 6 GHz, the same where 4G, 3G, and 2G networks have historically always worked. It is presu

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