Now our common wireless router has two working frequency bands, both of which are unlicensed spectrum. They are 2.4G and 5G respectively. Among them, 2.4G refers to the wireless spectrum of 2.4-2.4835Ghz, and 5G refers to the wireless spectrum of 5. 15-5.85GHz ... At present, domestic 2.4G only supports IEEE 802.11a/b/g/n protocol, and only 72.2Mbps is supported under single-channel WIFI antenna.
5G WIFI supports IEEE 802. 1 1ac protocol, and can support the connection speed of single-channel WIFI up to 433.3Mbps and dual-channel WIFI up to 867Mbps. The noisy 5G is actually not Huawei's 5G, but refers to the fifth generation mobile communication technology.
G in mobile communication technology refers to Generation, which means generation, and 5G is the fifth generation mobile communication technology. Compared with the previous 4G, the download speed of 5G is faster, the peak download speed can reach 10Gbps, the delay is lower, and the minimum download speed can reach 1ms, which supports more device connections.
In fact, there is no real international standard for 5G, because the 5G of various organizations has not been finally submitted to ITU for approval. It is estimated that around 2020, both 3GPP and IEEE will launch their own 5G standards for ITU to review, namely IMT-2020, which is the official name of 5G. The official name of 4G is IMT-Advanced, and the official name of 3G is IMT-2000.
What we are talking about now is 5GNR of 3GPP. 3GPP is one of the largest communication patent organizations in the world. At present, the mainstream mobile communication technologies in the world belong to 3GPP standards, including 3G TD-SCDMA (China), 4G WCDMA (Europe) and LTE-Advanced (including FDD-LTE and TD-LTE, which is mainly promoted in China).
The 5G we are talking about now is the 5GNR standard under the 3GPP framework, which will be submitted to ITU for review in 2020. In the whole standard, the standard essential patents of China companies account for more than 1/3, among which Huawei has the most.