Family base station frequency spectrum allocation method based on load prediction grouping in layered heterogenous network

Abstract

The invention discloses a family base station frequency spectrum allocation method based on load prediction grouping in a layered heterogenous network and belongs to the technical field of communications. The method comprises the following steps: step 1, load predictive value is periodically obtained by family base stations in a housing estate according to historical load information; step 2, obtained load prediction information is used by the family base stations in the housing estate for periodically grouping and the frequency spectrums are independently allocated for each group; step 3, the frequency spectrums are independently allocated within each group when the grouping is decided by the family base stations in the housing estate and the frequency spectrums of the family base stations in the same group are not repeated. According to the method, the historical load information of all the family base stations and a macro base station is optimized to obtain the load prediction information in a further period; the obtained load predictive value of all the family base stations is used for grouping the family base stations in the housing estate; the spectrum resource is independently used and allocated after grouping, therefore, the interferences in the same level among the family base stations can be reduced effectively.

Description

technical field [0001] The invention belongs to the technical field of layered heterogeneous ad hoc networks, and relates to a method for allocating frequency spectrum of home base stations based on load prediction grouping in layered heterogeneous networks. Background technique [0002] In order to meet the rapidly increasing data rate and higher coverage quality requirements of wireless communications in today's world, and significantly improve the performance of cellular networks, 3GPP proposed a heterogeneous network (Heterogeneous Network, Hetnet) technology in the standardization of LTE-Advanced. Especially when the number of heterogeneous small cells is increasing and the density is becoming very high, the existence of these low-power nodes in the heterogeneous network greatly shortens the distance between the wireless network base station and the user. The quality of the wireless signal is also enhanced. Heterogeneous network technology greatly improves the spectrum...

AI Technical Summary

Problems solved by technology

Network nodes in the same network share a section of spectrum resources. Each network node can use a certain number of spectrum resource sets. However, due to the lack of centralized control equipment, network planning cannot be performed like traditional cellular networks. Some network nodes use self-organization The ground form exists, which causes interference between transmission links of different network nodes and low efficiency of spectrum use

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