Method for Enhancing Transmission Distance of Frequency-Shifting Repeater in Time-Division Duplex Relay Transmission Mode

Abstract

The invention discloses a method for enhancing transmission distance for a frequency shift repeater in a time division duplex relay transmission mode, comprising the following steps: 1. the intelligent antenna signal processing for a master station: processing an uplink signal and a downlink signal, causing the processed signal to successively pass through a radio frequency transmitting-receiving switching circuit and a filter after being processed by a power amplifier, emitting a signal of which the frequency is Fr by a relay antenna; converting the uplink relay signal into an FTD (Field Terminated Diode) signal of which the frequency is high; causing the FTD signal to pass through the radio frequency transmitting-receiving switching circuit and the filter; 2. intelligent antenna signal processing for a far-end station: processing the uplink signal and the downlink signal; after downlink emission signal power is amplified by processing the downlink emission signal via emission radio frequency processing, causing the downlink emission signal power to pass through the radio frequency transmitting-receiving switching circuit and the filter; emitting to a terminal from the radio frequency antenna; and after processing in far-end relay uplink, emitting the amplified signal power to the master station via the relay antenna. The method has the characteristics of low cost and transmission distance enhancement.

Description

technical field [0001] The invention belongs to the technical field of mobile communication wireless coverage extension, which is used to increase the wireless coverage of mobile communication networks and provide rapid deployment and low-cost wireless coverage for special remote areas (such as remote villages, isolated islands, etc.), and specifically relates to a time-division dual A method for enhancing the transmission distance of frequency-shifting repeaters in the form of industrial relay transmission. Background technique [0002] TDD is the abbreviation of Time Division Duplex. The internal processing of the TDD repeater is mainly filtering, frequency shifting, power amplification and synchronization control. The processing function is simple. At present, the existing repeater generally uses a common antenna, and the use of a common antenna includes the following disadvantages : First, the transmission distance range is limited, and it is impossible to realize the sc...

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Problems solved by technology

[0002] TDD is the abbreviation of Time Division Duplex. The internal processing of the TDD repeater is mainly filtering, frequency shifting, power amplification and synchronization control. The processing function is simple. At present, the existing repeater generally uses a common antenna, and the use of a common antenna includes the following disadvantages : First, the transmission distance range is limited, and it is impossible to realize the scene where the transmission distance is required to be long; the second is the reason for the high cost of equipment

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