| 摘要 |
PURPOSE: An RP(Radio Port) of a 2FA(Frequency Assignment)omni-type WLL(Wireless Local Loop) system, to which two frequency with the omni structure is assigned, in a Korean-type WLL system is provided to design the RP of the 2FA/omni type WLL system according to a WLL standard size, to operate frequency reuse as subscribers increasing, and to easily give services by the WLL system. CONSTITUTION: An RP(Radio Port) of a 2FA(Frequency Assignment)/omni-type WLL(Wireless Local Loop) system to which two frequency with the omni structure is assigned, amplifies an RF signal related to traffic data, assigned to the two frequency from an RIU(Radio Interface Unit) in a low noise, converts into an IF(Intermediate Frequency) signal. The RP converts the converted IF signal into a baseband signal, demodulates in CDMA(Cord Division Multiple Access) to the traffic data, and transmits the IF signal to an RPC(Radio Port Controller) as an E1 signal by an E1 interface through a corresponding path. The RP receives the traffic data inputted from the RPC by the E1 interface, modulates in the CDMA the received traffic data to the baseband signal, converts the modulated baseband signal to the IF signal, and converts into the RF signal. The RP amplifies the converted RF signal in high power, and transmits to the RIU by emitting the amplified RF signal to outside through a transmission antenna.
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