Wireless communication co-frequency forwarding system and method

Abstract

The invention provides a wireless communication co-frequency forwarding system. The system comprises a plurality of forwarding devices which are sequentially connected at intervals; each forwarding device comprises a same-frequency transceiving antenna, a circulator, a radio frequency module, a radio frequency switch, a power supply module and a digital signal processing module; the radio frequency module comprises a low-noise amplifier of an uplink channel and a power amplifier of a downlink channel, the circulator is respectively connected with the same-frequency transceiving antenna, the low-noise amplifier and the power amplifier, and the digital signal processing module is respectively connected with the low-noise amplifier, the power amplifier and the radio frequency switch; and the radio frequency switch is connected with the radio frequency module, and the power supply module is respectively connected with the circulator, the radio frequency module, the radio frequency switch and the digital signal processing module. The invention further provides a wireless communication co-frequency forwarding method, ultra-long distance communication networking is achieved, and then full coverage of a signal area is achieved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a wireless communication same-frequency forwarding system and method. Background technique [0002] Due to the transmission loss of electromagnetic waves, the coverage of wireless signals is limited, which will cause weak or no signals in many areas, forming signal blind spots. This phenomenon is especially obvious in mountainous areas, where due to the obstruction of tunnels, bends, hillsides, etc., it is easy to form signal blind areas and weak field areas. Especially in tunnels, wireless signals have limited coverage. During the opening and construction of the tunnel, due to the limited signal coverage of the walkie-talkie, it is even more difficult to communicate with personnel inside and outside the tunnel and between personnel. In order to solve the communication problem of internal and external personnel during tunnel opening and construction, wireless co-frequency ...

AI Technical Summary

Problems solved by technology

The ICS wireless repeater uses software radio and digital signal processing technology, which has a certain technical threshold, and the ICS technology cannot completely eliminate the same path interference, so the donor antenna and the forwarding antenna must have a certain isolation when installing the repeater degree, which increases the difficulty of equipment installation. In addition, the wireless repeater is generally a single device, resulting in limited coverage

In summary, the existing wireless co-frequency forwarding equipment - ICS wireless repeater still has the following problems in tunnel applications: high cost, difficult technical implementation, complicated equipment installation, limited coverage, etc.

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