Method and device for adjusting mode of almost blank subframe in heterogeneous network

Abstract

The present invention relates to a mode adjustment method and device of an almost blank subframe in a heterogeneous network, comprising: a macro base station sends ABS subframe mode information to a micro base station; and receives the ABS status based on statistics of the ABS subframe mode information fed back by the micro base station information; the macro base station determines the current number of ABS subframes based on the ABS state information and its own load; and configures and adjusts the ABS subframe mode information based on the current number of ABS subframes. Because in the present invention, the macro base station determines the current number of ABS subframes according to the obtained ABS status information and its own load situation, and adjusts the ABS subframe pattern information according to the currently determined number of ABS subframes, so on the one hand, the macro base station The base station can avoid configuring unnecessary ABS subframes for the micro base station by calculating the number of ABS subframes. On the other hand, it also ensures the network performance of the macro base station, and then adjusts and optimizes the mode configuration of the ABS subframe, effectively improving the spectrum of the system. Utilization, optimize the performance of the eICIC solution.

Description

technical field [0001] The invention relates to the technical field of digital communication, in particular to a mode adjustment method and device for almost blank subframes in a heterogeneous network. Background technique [0002] In a long term evolution (Long term evolution, LTE) wireless communication system, a heterogeneous network is introduced. A heterogeneous network means that a macro base station and a low-power base station can be deployed simultaneously in the same cell. The low-power base station includes a remote radio unit (RRH), a pico base station (Pico eNB), a home base station (Home eNB), a relay base station (relay eNB), and the like. Low-power base stations can be used to cover hotspot areas, indoors, blind spots or cell edges of cells, and can improve cell average and cell edge user throughput. In a heterogeneous network, in order to improve the spectrum utilization rate of the system as much as possible, the macro base station and the low-power base ...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a mode adjustment method and device for almost blank subframes in a heterogeneous network to optimize the performance of the eICIC scheme

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