Load-based Gaussian distribution adaptive LTE (Long Term Evolution) cell switching method

Abstract

The invention discloses a load-based Gaussian distribution adaptive LTE (Long Term Evolution) cell switching method, which comprises the following steps of step 1 carrying out light load processing; step 2 carrying out heavy load matching; step 3 establishing a switching rule; and step 4 carrying out switching judgment. The load-based Gaussian distribution adaptive LTE switching method is combined with load of an adjacent area to divide a light load cell and a heavy load cell. A switching lag change mechanism adaptive to the cell quality is established from RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality) to adapt to the external environment dynamically and promote continuity for service development. A lag value is directly and linearly adjusted for the light load cell, a lag variable is dynamically set through a Gaussian distribution curve for the heavy load cell, and the adjacent area with poor RSRQ performance is directly discarded to avoid from reducing the service quality. The optimal target cell which meets the requirements for the switching rule is finally selected to switch, so that the service quality perception of a customer about the service is guaranteed to the greatest extent possible.

Description

technical field [0001] The invention relates to a handover method of an LTE system, in particular to a load-based Gaussian distribution adaptive cell handover method. Background technique [0002] 3GPP has proposed a series of technologies and solutions for LTE, considering the backward compatibility of the current network system. The characteristics of LTE technology are reflected in: simplifying the system structure, improving QoS (Quality of Service, quality of service) and link layer technology, using adaptive OFDM and MIMO technology, etc., its main goal is to provide users with seamless voice and multimedia at low latency Access services, the realization of this goal requires handover support from the source cell to the target cell. For LTE, since there is no macro-diversity between eNodeBs, there is only hard handover in LTE. The handover process needs the support of handover technology and handover algorithm. A good handover algorithm is dedicated to reducing call ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the prior art that the LTE network handover cannot better match the external environment, cannot adaptively adjust handover parameters, and cannot take into account cell load, RSRP and RSRQ, and provides a load-based Gaussian distribution automatic Adapt to LTE cell handover method

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