本帖最後由 postmaster 於 2018-2-8 02:59 編輯
802.11ac Wave 2 FAQ
https://www.cisco.com/c/en/us/so ... d-a-c67-734152.html
Upgrades and Compatibility
Q. Are Wave 1 hardware and Wave 2 hardware compatible with each other?
A. No. 802.11ac Wave 1 required new hardware in both access points and client devices to deliver channel widths up to 80 MHz, 256 quadrature amplitude modulation (256-QAM), and up to three spatial streams. The result was a maximum data rate of 1.3 Gbps, or about three times the top-end 802.11n products in the market. Similarly, Wave 2, a superset of Wave 1, requires new hardware in both access points and client devices to support the additional 802.11ac capabilities such as MU-MIMO, channel widths up to 160 MHz, and the potential for a fourth spatial stream.
Q. Will 802.11ac Wave 2 continue to support 802.11ac Wave 1 and other 5-GHz protocols?
A. Yes, 802.11ac Wave 2 access points will interoperate with 802.11ac Wave 1, 802.11n, and 802.11a client devices. Support for all Wave 2 features, however, requires Wave 2 support in both the access point and in the client. |