| 摘要 |
PURPOSE: A wireless transmission repeat system is provided to apply a 1xEVDO technique between two points not having a wire link. CONSTITUTION: A wireless transmission repeat system consists of a transmitting channel card(101), a receiving channel card(102), an RF amplifier module(103), an interface module(104), a data merging and splitting module(105), and a WLCP(Wireless Link Control Processor)(106). The transmitting channel card(101) contains a CSM(Cell Site Modem) ASIC that encodes data in an EVDO method. The receiving channel card(102) contains an MSM(Mobile Station Modem) that decodes data. The RF amplifier module(103) demodulates a signal received by wireless and transmits it to the receiving channel card(102). The RF amplifier module(103) modulates and amplifies a signal inputted from the transmitting channel card(101) and transmits it by wireless. The interface module(104) connects with an external trunk line and various systems. The data merging and splitting module(105) converts the data inputted from the interface module(104) in order to transmit the data to the transmitting channel card(101) and the receiving channel card(102). The WLCP(106) controls the initializations and states of all the blocks.
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