Base station power-saving method and system based on LTE TDD system

Abstract

The invention discloses a base station power-saving method based on long time evolution (LTE) and time division duplex (TDD), comprising the following steps: establishing a community according to default setting, setting original state of all downlink sub-frames in the community as open; carrying out statistic on downlink occupied resource according to community downlink sub-frame status and traffic volume the community loads; calculating average downlink occupied resource according to downlink occupied resource; choosing the downlink sub-frames which need to be closed when the proportion of the average downlink occupied resource to system downlink available resource is less than or equal to preset threshold value of closed sub-frames; resetting status of the downlink sub-frames in the community, resetting the status of downlink sub-frames and setting the status of the downlink sub-frames which need to be closed as closed. The invention also discloses a base station power-saving system based on the LTE and TDD system. Based on the method and the system of the invention, total power of the base station can be saved and the purpose of power saving is achieved.

Description

technical field [0001] The present invention relates to a base station power consumption management technology in the field of wireless communication, in particular to a base station power saving method and system based on an LTE TDD system. Background technique [0002] The Long Term Evolution (LTE, Long Term Evolution) project is an evolution of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project), which improves and enhances the 3G air access technology. 3GPP LTE is regarded as a "quasi-4G" technology, using Orthogonal Frequency Division Multiple Access (OFDM, Orthogonal Frequency Division Multiplexing) and Multiple Input Multiple Output (MIMO, Multi-InputMulti-Output) as the only standard for its wireless network evolution. The characteristic of the LTE system is that it can provide a peak rate of 100Mbit / s downlink and 50Mbit / s uplink under the 20MHz spectrum bandwidth, which improves the performance of the cell edge users, increases the cel...

AI Technical Summary

Problems solved by technology

The carrying services of communities in different locations vary greatly in a day. For example, the business volume of a community located in a residential area is not high during the daytime, peaks at around 8 o'clock in the evening, and is the smallest at 2 or 3 o'clock in the middle of the night; located in an office area The cell is stable at high traffic volume during the day, and the traffic volume gradually decreases after get off work, but the base station antenna units corresponding to all downlink subframes of the cell must work at any time regardless of the traffic volume, so when the traffic volume of the cell is small , it will cause a waste of the transmit power of the base station antenna unit, thereby increasing the total power consumption of the base station

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