In IEEE 802.11b standard, four types of modulations are supported.They are 1Mbps DBPSK, 2Mbps DQPSK, 5.5Mbps CCK and 11Mbps CCK.是什么意思_In IEEE 802.11b standard, four types of modulations are supported.They are 1Mbps DBPSK, 2Mbps DQPSK, 5.5Mbps CCK and 11Mbps CCK.在线翻译_英语_读音_用法_例句