| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless receiving device using a radio communication preamble signal with which high-accuracy AGC is performed and A/D conversion can be appropriately performed, in a wireless receiving device for receiving signals transmitted from a plurality of transmitter antennas. <P>SOLUTION: Before transmission data 110A-110D, there are arranged a PLCP signal including a short-preamble sequence 101, a first long-preamble sequence 102 and signal fields 103, 104 transmitted in order from one antenna Tx1, a plurality of AGC preambles 105A-105D transmitted from a plurality of antennas Tx1, Tx2, Tx3, Tx4 after the PLCP signal, and a radio communication preamble signal including second long-preamble sequences 106A-109A, 106B-109B, 106C-109C and 106D-109D transmitted from the antennas Tx1, Tx2, Tx3, Tx4 after the AGC preambles 105A-105D. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
