At the beginning of the new year, many friends began to “ponder” about how to install a new home. With people’s dependence on the Internet, many families have attached great importance to the construction of the home network. In particular, the infuriating Wi Fi 6 technology in recent years has made many friends who want to install a new home wonder. Is Wi Fi 6 really so fragrant?
Speaking of the construction of home wireless network environment, the mainstream technologies are Wi Fi 4, Wi Fi 5 and Wi Fi 6. When installing a new home, should home users choose Wi Fi 4 or Wi Fi 5? Or Wi Fi 6? What is the difference between the three, and what kind of wireless network experience change can it bring to home users?
What is Wi Fi 6
As the sixth generation of Wi Fi technology, Wi Fi 6 adopts 802.11ax standard. In 2018, the Wi Fi alliance will formally incorporate Wi Fi based on 802.11ax standard into the regular army. By promoting 802.11ax, the Wi Fi specification will be renamed, and the new standard 802.11ax will be renamed Wi Fi 6. Not only has the naming standard been changed, but also new icons have been used in the network connection of Wi Fi devices.
Technically, Wi Fi 6 can support 2.4G and 5g bands at the same time, which is the real sixth generation Wi Fi iterative standard. Now it will also replace 11n and 11ac products on the market. In addition, Wi Fi 6 also brings a full version of MU-MIMO (supporting 8 terminal uplink / downlink MU-MIMO), and introduces OFDMA technology to realize another parallel transmission capability complementary to MU-MIMO, which is more flexible and practical than MU-MIMO.
What are the advantages of Wi Fi 6 compared with the previous generation?
Compared with the previous generation of Wi Fi, the most prominent feature of Wi Fi 6 is the substantial increase in speed. Theoretically, the maximum speed of Wi Fi 5 is 6.9gbps, while the maximum speed of Wi Fi 6 is increased to 9.6Gbps, which increases by nearly one third. This will greatly improve our daily network speed. High speed is the first feeling most people have about Wi Fi 6, but Wi Fi 6 has more advantages than that.
In addition to faster speed, better performance in congested areas is another advantage of Wi Fi 6. Generally speaking, it is to solve the performance bottleneck in crowded times. When there are multiple devices, you can get a smoother Internet experience. After all, multiple devices are connected to Wi Fi at the same time, which is easy to cause network jam, and Wi Fi 6 can solve this problem well. The reason is that Wi Fi 6 adopts OFDMA and MU-MIMO technologies.
The OFDM scheme of Wi Fi 5 is to send the car according to the order, regardless of the size of the goods, to send a single car, even if it is a small piece of goods, also send a car, which leads to low car utilization, low efficiency and waste of resources. Wi Fi 6 with ofmda technology can divide the wireless channel into several subchannels to form a frequency resource block. User data is carried on each resource block instead of occupying the whole channel, so that multiple users can transmit simultaneously in parallel in each time period. Compared with the previous generation technology, the order of ofmda technology is aggregated to make the trucks fully loaded on the road, which greatly improves the transportation efficiency.
If ofmda technology effectively improves the transmission speed, MU-MIMO technology realizes the parallel use of multiple users. Although Wi Fi 5 also supports MU-MIMO, the router only allows four devices to communicate at a time, and only supports downlink MU-MIMO. The MU-MIMO technology on Wi Fi 6 allows the router to communicate with up to eight devices at a time, and supports both uplink and downlink MU-MIMO, so there is no need to communicate in turn,. The improvement from Wi Fi 5 to Wi Fi 6 is more like the expansion of one-way four lane to two-way eight lane, and multiple devices are no longer like many vehicles waiting in line to drive out from one exit, which greatly improves the communication efficiency.
Wi Fi with TWT Technology 6 is more power-saving, allowing AP to plan communication with devices, negotiate when and how long to wake up to send / receive data, and group terminals to different TWT cycles, reducing the time required to keep the antenna powered to transmit and search signals, which means reducing power consumption and reducing the number of devices competing for wireless resources after wake-up.
Which one is 5g or Wi Fi 6?
We have popularized the technology and advantages of Wi Fi 6 for you. I believe you have a deeper understanding of Wi Fi 6. As a 5g on an equal footing with Wi Fi 6, which one has more advantages?
In fact, in our opinion, Wi Fi 6 and 5g are not a “fish and bear” problem, but are limited by time, space, interests and other factors.
As a solution to “localization” of short distance wireless transmission. All protocols starting with 802.11 (including 802.11ax, AC, B, G, N, etc.) including Wi Fi 6 do not involve any managed spectrum resources. The frequency band of 5g is a spectrum resource controlled by the government, which is formulated by 3GPP and national communication associations.
In the same place, both Wi Fi 6 and 5g adopt OFDMA and MU-MIMO technologies, which are four times higher in bandwidth and access capacity than the previous generation. There are many differences between the two in essence. Wi Fi 6 is actually a wireless technology with small coverage. The transmission power and use environment of the router determine the coverage of Wi Fi 6. Due to the limitation of power and spectrum resources, most routers are more suitable to cover an indoor scene.
5g network is a national unified planning and management of communication technology, which is generally deployed outdoors. Compared with Wi Fi 6, it has a wider range and is less vulnerable to interference. So 5g is mainly used in public network access, Internet infrastructure access, etc.
Does Wi Fi 6 router really smell good?
Do you need to upgrade your router now? Although Wi Fi 6 is good, users should refer to their own environment and needs before purchasing.
The wireless standard supported by home router is out of date. If it supports Wi Fi 4, we suggest upgrading home router to Wi Fi 6. After all, Wi Fi 6, a new device such as mobile phones and laptops, is now standard.
From home, electronic competition to large-scale routing, looking at the current market of Wi Fi 6 router, it can be said that there are endless layers, and the price ranges from several hundred to several thousand yuan. Although it shows a trend of gradually catching up, it is not achieved overnight.
Write at the end
In general, Wi Fi 6 router products can bring users a smoother Internet experience, and complement 5g in different regions. If there are conditions, the Wi Fi 6 router at home will definitely make you feel different.