SMDP (Semi-Markov Decision Process)-based home base station dormancy method in heterogeneous cellular network

Abstract

The invention belongs to the field of heterogeneous cellular networks and particularly relates to an SMDP (Semi-Markov Decision Process)-based home base station dormancy method in a heterogeneous cellular network. The method comprises the following steps: formulating a user correlation mechanism; computing energy consumption of a system; establishing an SMDP model according to the user correlationmechanism and the energy consumption of the system; and solving an optimal dormancy decision. Compared with a traditional base station dormancy method, the method provided by the invention more meetsthe condition of dynamic change of base station loads in practice, fully utilizes the resources of a home base station, relieves the load pressure of a macro base station, and also better reduces theenergy consumption of the system.

Description

technical field [0001] The invention belongs to the technical field of heterogeneous cellular networks, and relates to a dormancy method for a home base station based on a semi-Markov decision process (Semi-Markov Decision Process, SMDP) in a heterogeneous cellular network. Background technique [0002] In recent years, with the rapid development of Information and Communications Technology (ICT), people's lives have undergone tremendous changes. Mobile communication technology has developed from 1G, 2G, and 3G to the mature 4G technology, and the new 5G technology is in the future. The business type of mobile communication is also constantly changing, from the low-speed voice and short message services in the past to various high-speed mobile data services. In addition, with the explosive growth of smartphones, tablets, and other multimedia devices, it is a huge challenge to increase the capacity of communication networks. At the same time, the rapid development of applic...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing base station dormancy technology research is a fixed dormancy mechanism, such as timing dormancy, shutting down the base station with no users or the lowest resource utilization rate, etc., and it is done when the business status is determined for a period of time The research does not take into account the impact of business dynamic changes on the system state and the dormancy mechanism

In addition, after the home base station is dormant, its users are directly handed over to the macro base station (Macro Base Station, MBS), which not only does not make full use of the resources of the home base station, but also increases the load pressure on the macro base station, and does not consider that these users can not only Re-associate the MBS, and also the remaining working femtocells

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