Method and device for measuring frequency spectrum occupancy rate

Abstract

The invention discloses a method and a device for measuring frequency spectrum occupancy rate, wherein the method comprises the steps as follows: comparing the received signal field strength with a threshold level to obtain sequences of comparative results, performing analytical calculation for the sequences of the comparative results according to the distribution rule of a first-order Markov chain, and calculating value of the frequency spectrum occupancy rate as well as fiducial interval and relative precision of the value of the frequency spectrum occupancy rate. The device for measuring frequency spectrum occupancy rate disclosed by the invention comprises a radio frequency receiving module, a detection comparing module, an occupancy rate calculating module, a comparison feedback module and an output module. The method and device of the invention can be used for measuring the occupancy rate by performing dependent sampling under the condition of considering channel transmission correlation, and ensuring the fiducial interval and relative precision of the value of the frequency spectrum occupancy rate. The method of the invention is more reasonable than a method for calculating the frequency spectrum occupancy rate by adopting poisson's distribution mathematical model which samples independently in the prior art.

Description

technical field [0001] The invention relates to the technical field of radio management and monitoring, in particular to a method and equipment for measuring frequency spectrum occupancy. Background technique [0002] Channel (channel) occupancy measurement is one of the important contents of radio daily monitoring, and is the main technical means for monitoring and management of spectrum utilization. Occupancy measurement of certain radio frequency bands in daily radio monitoring is helpful to understand and grasp the occupancy and use of each channel that is being used or has been assigned. The measurement method of spectrum occupancy is given in the ITU-R Recommendation SM.1536 "Channel Occupancy Measurement" and SM.184-2 "Automatic Monitoring of Spectrum Occupancy" of the International Telecommunication Union (ITU), "Spectrum Monitoring Handbook "There is also a description of spectrum occupancy. In these documents, the corresponding relationship between the number of ...

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Problems solved by technology

[0009] In the actual monitoring calculation, the ITU measurement method uses the mathematical model of the Poisson distribution to calculate the spectrum occupancy, which has certain limitations. It only considers the situation of independent sampling, and does not consider the situation of non-independent sampling.

For many channels, the transmissions at different times have a certain correlation, and independent sampling cannot reflect this correlation

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