Channel measuring method and system

Abstract

The invention discloses a channel measuring method, which is used for effectively measuring the wireless channel environment of a base station. The method comprises the following steps: a wireless receiver obtains a synchronic state of a time division duplex TDD network and adjusts a clock of the wireless receiver to be synchronic with the TDD network; the wireless receiver receives a signal which is transmitted by a transmitter through a frequency band of the TDD network at the upstream time slot; and the wireless receiver analyzes the received signal to obtain a measurement data for expressing the measurement result of the channel. The invention also discloses a method for site selection of the base station based on the above method and a system for realizing the above method.

Description

technical field [0001] The invention relates to the communication field, in particular to a channel measurement method and system. Background technique [0002] In the planning and optimization of wireless communication networks, it is necessary to measure the wireless channel environment everywhere. [0003] In the prior art, channel measurement is usually done on the terminal side. The main process is: the terminal receives the downlink signal sent by the base station; the terminal analyzes the downlink signal to obtain measurement data; the terminal can also send the measurement report to the base station. [0004] The current wireless communication network is transitioning from the second generation communication system (2G) to the third generation communication system (3G), and there are cases where 2G base stations and 3G base stations coexist and are adjacent to each other. The 2G communication system usually adopts a frequency division duplex (Frequency Division Du...

AI Technical Summary

Problems solved by technology

Although the above three signals are transmitted on different frequency bands, the interference between adjacent frequency bands will still affect the accuracy of channel measurement

[0005] Moreover, the above three signals may saturate the reception of the measurement terminal, especially when the measurement terminal is close to the 3G base station, the problem of reception saturation is particularly prominent, resulting in reception distortion, thereby reducing the accuracy of channel measurement

[0006] And, in the prior art, the base station is usually built first, and then the wireless channel environment of the base station is measured. If the measurement result is not satisfactory, the base station may need to be rebuilt, resulting in waste of engineering

[0007] To sum up, in the prior art, the measurement of the wireless channel environment of the base station of the TDD network has the problem of low accuracy

The issue can also lead to suboptimal location and coverage of base stations

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