Long-term evolution (LTE) cell switching method based on multi-factor decision

Abstract

The invention discloses a long-term evolution (LTE) cell switching method based on a multi-factor decision. From cell signal level measurement and cell resource analysis, influences of a user terminal rate change and a service quality competiveness index (QCI) level are considered, and a brand-new cell switching rule is provided. By the LTE cell switching method based on the multi-factor decision, a signal level value and the resource availability of a target cell as well as a migration rate of users and the priority level of developed services are comprehensively considered; proper weights can be selected, so that cells with the minimum loads or the best signal level values are selected to be switched, so that the service continuity is guaranteed; and therefore, the customer satisfaction is improved to the maximum extent, and the aim of balancing a network is fulfilled.

Description

Technical field [0001] The invention relates to a method for LTE cell handover, in particular to a method for cell handover based on comprehensive consideration of multiple factors such as cell signal level, resource load, user moving speed and service level. Background technique [0002] LTE can significantly reduce the delay of the user plane and the control plane by adopting multiple key technologies such as OFDM, SC-FDMA, and MIMO. Its main goal is to provide seamless voice and multimedia access services under this delay requirement. The realization of this goal requires handover support from the serving cell to the target cell. Since there is no macrodiversity between eNBs, only hard handover exists in LTE, and at the same time, it is necessary to ensure that user perception will not be affected by the handover mechanism, which puts forward higher requirements on the handover algorithm. [0003] Different from 3G system handover, in link monitoring and measurement, layer one ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides a solution to the handover problem of differentiated services in the LTE network, which can effectively avoid unstable cell signal quality and unbalanced load caused by cell handover in the network. LTE cell handover method based on multi-factor decision-making

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