Energy saving method based on microcell cooperation in long-term evolution system

Abstract

The embodiment of the invention relates to an energy saving method based on inter-microcell cooperation under a dense microcell distribution condition in a mobile communication network. The energy saving method comprises the steps: acquiring cell information, such as bandwidth restriction and user spatial distribution, by a feedback channel, and reporting the cell information to a cooperation server center (CSC) located in a microcell base station; acquiring a cooperative microcell set by the CSC through information interaction between adjacent microcells; and based on the analysis of the bandwidth and load of hotspot cells in the cooperative microcell set, determining which microcells in a normal working mode enter a cooperation mode and which microcells in the cooperation mode need to quit the cooperation mode and enter the normal working state, by the CSC, and determining the size of the service coverage of the cell cooperation mode by carrying out quantization of different levels according to the magnitude of detected load fluctuations.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more particularly, the present invention is directed to a micro cell cooperation-based energy saving method in the scenario of densely distributed micro cells in a long-term evolution system (LTE). Background technique [0002] In recent years, the combination of Internet and mobile network has become a new driving force for the development of wireless communication technology. With the rapid growth of the number of mobile Internet users and the high demand of users for services such as high-definition video on demand and mobile TV, the high data capacity of the wireless network in some areas and even the entire network, satisfying the service quality of various services, and improving network coverage have become the next level. Research hotspots in the first generation wireless communication network. The 3rd Generation Partnership Project (3GPP) introduces the LTE tech...

AI Technical Summary

Problems solved by technology

The 3rd Generation Partnership Project (3GPP) introduces the LTE technology of the mobile communication system to meet the high data demand in terms of bandwidth and the low delay demand of various services, but the link capacity of the LTE system is close to the Shannon limit, so the single-layer There is not much room for improvement in capacity improvement and coverage enhancement of networks (such as macro cellular networks)

However, these energy-saving technologies are far from ideal. On the one hand, they only focus on the contribution of independent micro cells to the macro cellular network, and do not involve the mutual coordination between micro cells; on the other hand, switching technology cannot guarantee the security of user terminals Continuous service quality, that is, in the case of a small number of users, the base station is forced to enter the dormant state, causing some users to lose service immediately, seriously affecting the service performance of the network, and sacrificing the service of user terminals innocently for energy saving

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