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Physical layer unit for transmitting or receiving various signals, wireless LAN system including the same, and wireless LAN method using the wireless LAN system
Physical layer unit for transmitting or receiving various signals, wireless LAN system including the same, and wireless LAN method using the wireless LAN system
A physical layer unit (PLU) for receiving (and transmitting) various signals, a wireless Local Area Network (LAN) system including the PLU, and a wireless LAN method using the wireless LAN system. The wireless LAN system is capable of receiving signals of different standards, by performing a first preamble processing of an input signal for a predetermined first time period of 16 s (the preamble processing time period according to an OFDM standard for determining whether the input signal corresponds to the OFDM standard), and performing a second preamble processing within a predetermined second time period (the remainder of a preamble processing time period for determining whether the input signal corresponds to a DSSS/CCK standard), if the input signal does not correspond to the OFDM standard. Therefore, DSSS/CCK and OFDM signals can be transmitted and received reliably in the integrated wireless LAN system according to the IEEE 802.11.g standard.
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