LTE-Hi small cell on-off control method based on business capacity assessment

Abstract

The invention relates to an LTE-Hi small cell on-off control method based on business capacity assessment, and belongs to the technical field of LTE-Hi system small cell on-off control. A small cell cluster set with the business volume satisfying a certain preset condition is grouped according to a mean value iterative computing way based on the assessment and processing on the business capacity of multiple small cells in a small cell cluster by a macro base station, the small cell cluster set is divided into a small cell sub-set which is should be turned off and the small cell sub-set always maintained in turn-on status, thereby triggering an on-off operation of the small cell. The invention provides a small cell on-off control scheme which is effective, easy to realize and has high energy efficiency, some unnecessary or invalid small cell opening status can be effectively evaded, and the demand of the business change can be responded, the corresponding off small cell can be fast turned on; and the control method disclosed by the invention can be used as a reality solution scheme of the LTE-Hi small cell on-off control.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, in particular to the field of small cell switch control technology of LTE-Hi (LTE-Hot spot / indoor) system under the condition of inter-frequency networking, and relates to an LTE-Hi small cell based on service load evaluation switch control method. Background technique [0002] With the rapid development of mobile communications and the emergence of various mobile smart terminals, mobile business applications and data volumes are showing explosive growth trends. According to the statistics of Cisco in 2011, the indoor mobile data service volume accounts for 70% of the total service data volume, and this proportion will even increase to 90% within a few years. Since the available spectrum resources below 3GHz are very limited, in order to increase the transmission rate, the future LTE system may expand the working frequency band to a higher frequency band. However, high-frequency si...

AI Technical Summary

Problems solved by technology

[0009] For the dynamic switching mode, small cells need to be turned on and off at the subframe level, which means that the time required for turning on and off is only a few milliseconds, which is difficult to support under the existing LTE standards and technical solutions, and further work is needed. in-depth study

[0010] The main issues considered by the LTE-Hi small cell switch technology are: (1) If the small cell in the open state serves too few UEs or the traffic volume approaches zero, the energy (or power) consumed by it will Equivalent to unnecessary consumption under no-load condition

However, if only relying on a few typical UE business activity models to control the switching of small cells, some small cell switching control schemes that do not conform to the business activity models may not match some situations in real scenarios, resulting in the impact of switching control Normal development of UE business

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