Idle frequency spectrum test method, device and system

Abstract

The invention provides an idle frequency spectrum test method, a device and a system, wherein, the idle frequency spectrum test method comprises the following steps: secondary equipment receives downgoing signals of a base station of main equipment; and the downgoing signals are decoded according to the identification information for identifying resource allocation information of the main equipment in the downgoing signals to obtain the idle frequency spectrum resource information of the main equipment. The above idle frequency spectrum test method, the device and the system can accurately andefficiently obtain the idle frequency spectrum resource information of the main equipment, and effectively increase the use ratio of frequency spectrum by decoding the downgoing signals of the main equipment,; meanwhile, the interference of the secondary equipment to the main equipment are better prevented by ways of ensuring that the transmitted power of the secondary equipment is less than thetransmitted power of the main equipment or setting a protective belt and the like.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for detecting idle frequency spectrum. Background technique [0002] With the continuous development of communication technology, wireless communication technology has also been developed rapidly, but the available spectrum resources for maintaining wireless communication are limited. With the increase of wireless applications, wireless spectrum resources are becoming increasingly scarce. Therefore, improving the utilization rate of wireless spectrum has become one of the important problems urgently to be solved in wireless communication. [0003] At present, the wireless spectrum in various countries is divided into non-overlapping frequency bands according to a fixed allocation method, and allocated to specific operators to carry out specific wireless applications. These devices that have obtained wireless spectrum are called Authoriz...

AI Technical Summary

Problems solved by technology

In order to improve the detection accuracy, the detection time is generally increased, and the increase of the detection time will make the secondary device unable to detect the real-time change of the spectrum when the frequency of the available spectrum changes relatively fast, thus losing the opportunity to detect the idle spectrum

In addition, the above-mentioned detection method is difficult to estimate the idle time of the idle spectrum. Therefore, it is possible that the secondary device releases the idle spectrum before the idle spectrum is occupied by the master device, thereby reducing the spectrum utilization rate, or the idle spectrum is occupied by the master device. After, while the secondary device has not exited, causing interference to the primary device

With the above detection method, it is difficult to utilize idle time slots in time division multiple access (TDMA) systems, idle spectrum in frequency division multiple access (FDMA) systems or idle codes in code division multiple access (CDMA) systems. and other resources; on the other hand, in a cellular wireless communication system, the allocation of wireless resources is decided by the base station, and the main device is notified, which part of the spectrum resource the base station will occupy in which time period to send downlink signals, and the main device will also be notified. device, which part of the spectrum resources the master device will use to send uplink signals, and the above information is not effectively used by the slave device in the existing scheme

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