Method and device for constructing composite small-scale radio channel model of high-speed rail

Abstract

The invention provides a method and device for constructing a composite small-scale radio channel model of a high-speed rail, relating to the radio communication field. The method comprises the following steps of: 1, constructing typical scene sub-channels according to various types of scenes experienced by the high-speed rail; 2, according to the high-speed rail to be tested, selecting corresponding composite small-scale sub-channel types and the typical scene sub-channels; 3, sequencing all selected typical scene sub-channels according to requirements; confirming the duration time of each typical scene sub-channel; and 4, combining the typical scene sub-channel types according to the determined arrangement way and the relative duration time; and obtaining the composite small-scale radio channel model of the high-speed rail. The device comprises a sub-channel constructor, a type selector, a sequencing and time confirmer and a combiner. By means of the method and the device disclosed by the invention, the required complete comprehensive radio channel model of the high-speed rail can be obtained, the radio channel of the high-speed rail can be depicted accurately and comprehensively, and the accuracy for test and simulation can be improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for constructing a compound small-scale wireless channel model of a high-speed railway. Background technique [0002] In recent years, the progress of China's high-speed railway (hereinafter referred to as "high-speed railway") complete set of technology has attracted worldwide attention, and high-speed railway has become a national landmark achievement. At present, my country is the country with the fastest development of high-speed railway in the world, the most complete system technology, the strongest integration capability, the longest operating mileage, the highest operating speed, and the largest scale under construction. With the development of high-speed railway, the communication between high-speed railway trains and grounds has gradually become a hot issue in the academic and industrial circles. Passenger-based broadband data services and in-t...

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Problems solved by technology

[0005] However, the existing channel emulators or channel simulation models are all single-scenario models, such as plains, mountainous areas, urban areas, etc., and the single-form scene channel model is difficult to accurately describe the high-speed rail wireless channel model, and has poor practicability

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