A 5G router means that the working frequency of the router is 5Ghz, which is 5000Mhz.
At present, our router may have two working frequency bands, both of which are unlicensed spectrum, one is 2.4Ghz and the other is 5Ghz. The high-frequency 5Ghz can currently support the 802.11ac protocol, which can reach a download speed of 433.3Mbps on the usual single-channel wifi terminal.
However, high-frequency 5G WIFI penetration attenuation is relatively large. Normally, the signal attenuation is very severe when penetrating a load-bearing wall. If you want to have a good experience using 5G wifi, you still need to be in the same room with the router.
The mobile phone's 5G refers to the fifth generation of mobile communication technology, and this G is the English abbreviation for generation.
At present, our mobile phones have passed the 1G/2G/3G/4G era, and the communication network standard that is coming now is the 5th generation mobile communication technology.
The 1G era is the era of analog phones, which represents the big brother of the year.
The 2G era is the era of digital telephony, and its representative technologies are CDMA and GSM.
The 3G era is the era when China has begun to enter the international communication technology standards. It represents China’s TD-SCDMA (allocated to China Mobile), Europe’s WCDMA (allocated to China Unicom), and the United States’ CDMA2000 1x EVDO (allocated to China Unicom). China Telecom). Later, there was another Wimax launched by the IEEE in the United States.
The main international standards in the 4G era are LTE-Advanced, which is the follow-up evolution of TD-LTE (led by our country) and FDD-LTE, and 802.16m, which is a follow-up version of IEEE Wimax. However, only TD-LTE (mainly China Mobile in China) and FDD-LTE (mainly my country Telecom and China Unicom) are used in networking.
5G is an era in which standards are unified under the framework of 3GPP. At present, there is only one 3GPP 5GNR standard for 5G standards. There are three major application scenarios for 5G, namely eMBB (Enhanced Mobile Broadband), URLLC (Ultra High Reliability and Low Latency) and mMTC (Massive Machine Terminal Communication).
The difference between WIFI2.4G and 5G
There are two types of WiFi: one is 2.4G WiFi and the other is 5G WiFi
Most of the previously used WiFi supports the IEEE 802.11n (fourth generation) wireless standard
And it works on the 2.4GHz frequency band, so it’s called 2.4G WiFi
Many people think that 5G WiFi means operating in the 5Ghz radio wave frequency band
actually not
There are multiple WiFi protocol standards operating in the 5Ghz frequency band
Including 802.11a (first generation), 802.11n (fourth generation)
Simultaneously operating in 2.4Ghz and 5Ghz dual bands) and 802.11ac (fifth generation)
Only WiFi that supports 802.11ac protocol is true 5G WiFi
The characteristic of 5G WiFi is-fast
When we were choosing a router
Dual frequency means that this router supports 2.4Ghz and 5Ghz frequency bands
Which is the fourth generation of the 802.11n standard
How to tell if your router is dual-band
Scan your router signal
The initial name suffixes are 2.4G and 5G respectively
Remember this method, you can prevent being fooled
What are the advantages and disadvantages of 2.4G and 5G WiFi?
5GWiFi is faster, higher and stronger
Simply put, 5G WiFi is better
The transmission rate of 5G WiFi is like the speed of a car on a highway
And 2.4G WiFi is the speed of the country road
5G WiFi is relatively energy-efficient
Because more content can be delivered at the same time
5G signal bandwidth is wider
The wireless environment is relatively clean
But the 5G WiFi signal is poor
5G signal has high frequency and short wavelength
The 2.4G signal has low frequency and long wavelength
So the 5G signal attenuates more when passing through obstacles
Wall penetration ability is weaker than 2.4G signal
