Evaluation method and device for physical cell identity in LTE network

Abstract

The invention relates to an assessment method and apparatus for physical-layer cell identities (PCIs) in an LTE (Long Term Evolution) network. The method comprises the steps of obtaining a first PCI and a second PCI of a frequency point in each sampling point before the PCIs of the frequency point in frequency-sweep data are updated, obtaining a third PCI and a fourth PCI of the frequency point in each sampling point after the PCIs of the frequency point in the frequency-sweep data are updated, then obtaining a first mod conflict sampling point and a second mod conflict sampling point, and finally obtaining a mod conflict increase proportion; obtaining a PCI interference value increase range of the frequency point after PCI updating according to MR (Measurement Report) data; and assessing advantages and disadvantages of the PCIs after updating in comparison with the PCIs before updating according to the mod conflict increase proportion and the PCI interference value increase range. The method and the apparatus do not depend on accuracy and integrity of MR sampling, pay attention to road network quality and whole network quality, and have universality.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method for evaluating physical cell identifiers in an LTE (Long Term Evolution) network and a device for evaluating physical cell identifiers in an LTE network. Background technique [0002] LTE is a long-term evolution of the UMTS (Universal Mobile Telecommunications System, Universal Mobile Telecommunications System) technical standard formulated by the 3GPP (The 3rd Generation Partnership Project) organization. The LTE system introduces key technologies such as OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multi-Input & Multi-Output), which significantly increases the spectrum efficiency and data transmission rate; supports multiple bandwidth allocations , And supports the global mainstream 2G (second-generation mobile phone communication technical specifications) / 3G (second-generation mobile phone communication technical specifications) frequency...

AI Technical Summary

Problems solved by technology

[0007] (1) The total value of PCI interference is calculated by MR sampling, so this evaluation method completely depends on whether the model established by MR sampling is accurate and complete. When the quality of MR sampling is too low, the accuracy of the total value of PCI interference will be affected. It is not conducive to evaluating the advantages and disadvantages of the PCI conversion scheme;

[0008] (2) Even though the MR sampling is highly accurate and complete, and the established interference model is completely consistent with the actual network environment, the increase in the PCI interference value represents the improvement of the overall quality of the entire network, but it does not represent whether the road network quality that is the focus of attention has improved. , it is entirely possible to improve the quality of the entire network by sacrificing the quality of the road network through the PCI solution;

[0009] (3) When calculating the total value of PCI interference, there is no unified standard at present. Each manufacturer has its own privacy algorithm, so the calculated total value of PCI interference is not consistent, and the improvement rate of PCI interference value obtained by each manufacturer is not comparable. However, it is not clear how much the improvement can be implemented through the improvement of the PCI interference value.

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