Base station, far-end radio frequency unit and signal sending method thereof

Abstract

The invention discloses a base station, a far-end radio frequency unit and a signal sending method thereof. The method comprises that: a transmission and baseband signal processing module performs transmission and transformation processing on information and then transmits baseband signals to a wireless transceiver, and the wireless transceiver modulates the baseband signals into intermediate frequency signals; and the wireless transceiver sends the intermediate frequency signals to the far-end radio frequency unit in a wireless mode, and a far-end radio frequency module converts the received intermediate frequency signals into radio frequency signals for transmitting. The far-end radio frequency module converts the received far-end uplink signals into intermediate frequency signals, the intermediate frequency signals are wirelessly transmitted to the wireless transceiver and converted into baseband signals, and the baseband signals are transmitted to the transmission and baseband signal processing module. The coverage system is adopted, the equipment is simplified, the coverage distance between a main station and the far-end radio frequency unit can be greatly improved, and the network composing cost can be reduced.

Description

technical field [0001] The invention relates to mobile communication equipment, in particular to a base station, a remote radio frequency unit and a signal sending method thereof. Background technique [0002] For the coverage of special remote places, the following methods are generally used at present: [0003] 1. Using base station + wireless repeater. [0004] figure 1 It is a schematic diagram of repeater and base station. As shown in the figure, under this scheme, the base station and the near-end machine of the repeater can be connected by direct cable or wireless coupling. Use the relay frequency to communicate with the remote machine of the repeater through the relay antenna, and the relay frequency is the same frequency or different frequency from the system RF frequency. [0005] The disadvantage of this solution is: high cost, the system consists of a complete mobile base station, and the wireless repeater includes a near-end unit and a far-end unit. Since th...

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Problems solved by technology

[0005] The disadvantages of this solution are: high cost, the system consists of a complete mobile base station, and the wireless repeater includes a near-end unit and a remote unit.

[0008] The disadvantages of this solution are: high cost, the system includes base stations and digital microwave relay, and digital microwave needs line-of-sight transmission, and the engineering installation is easily limited

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