802.11ac is regarded as one of the most important wireless technologies in the next 2-3 years and becomes the fifth generation Wi-Fi technology standard. However, with the large-scale application of the Internet of Things, the current WLAN standard has been difficult to meet the demand, low-band WLAN has become a new focus.
It is understood that the low-band 802.11ah standard for the Internet of Things is being developed and is expected to be released in 2016.
The 802.11ah standard is expected to be released in 2016
According to relevant sources from the Telecommunications Research Institute of the Ministry of Industry and Information Technology, 802.11ah, a low-band WLAN standard for Internet of Things applications, has entered the stage of standard drafting and is expected to be released in 2016. "Mainstream companies at home and abroad are optimistic about the development prospects of WLAN for IoT applications and are actively promoting the 802.11ah standard. The Wi-Fi Alliance is also discussing WLAN industrialization projects for IoT applications."
In fact, in 2010, IEEE has already started the formulation of the 802.11ah standard, mainly using the unlicensed frequency band below 1GHz. As we all know, the low frequency band covers more, can support more users, and the power consumption is relatively low. For the development of the Internet of Things, the choice of low frequency band is more suitable.
"802.11ah can be applied to sensor and smart meter reading, sensor and smart meter reading backhaul links, and Wi-Fi coverage extension and other application scenarios."
It is understood that the current 802.11 standard is dominated by Qualcomm, with participation from Huawei, Broadcom, ZTE, Intel, NEC, and Samsung.
The Internet of Things becomes a frequent "big user"
When it comes to the future of the Internet of Things, even a grain of sand will have its own ID. According to the latest statistics released by market research agency ABIResearch, the total number of wireless networking devices on the Internet of Things has exceeded 10 billion units, and this data is expected to triple by 2020 to 30 billion units.
How to realize intelligent connection between such huge things, things and people? Among the many wireless solutions such as ZigBee, Bluetooth and NFC, Wi-Fi plays an important role and has become the most widely used technology in the Internet of Things. However, it is because of the arrival of the large-scale application of the Internet of Things, which has intensified the tension of spectrum resources. According to the forecast of relevant departments, RFID will have intensive and large-scale applications in 2020, and the Internet of Things has become a major Wi-Fi frequency user, and will face a certain spectrum gap by then.
"Therefore, the planning of the spectrum below GHz is a big event for the development of the Internet of Things, and it is more conducive to the planned application of the Internet of Things." The relevant person said.
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