Cell reselection method, system and terminal in multi-frequency networking

Abstract

The disclosure discloses a cell reselection method, system and terminal in a multi-frequency networking, and relates to the field of wireless communication. The method includes that the terminal receives low-frequency point service thresholds between multiple pairs of cells with different frequency priorities, and performs cell reselection according to the low-frequency point service thresholds among multiple pairs of different frequency priority cells. The disclosure can flexibly configure a reselection strategy in a multi-frequency networking scenario, achieve the purpose of service layering, and improve network performance.

Description

technical field [0001] The present disclosure relates to the field of wireless communication, and in particular to a cell reselection method, system and terminal in multi-frequency networking. Background technique [0002] Multi-frequency mixed networking will be the norm in the operator's network in the future. According to the bandwidth and coverage continuity of the network, each frequency point will define its priority. [0003] In the prior art, when reselecting a high-priority frequency point to a low-priority frequency point, the Srxlev (Cellselection RX level value, cell selection receiving level value) of the cell needs to be lower than Threshold_Serving, lowp (serving carrier frequency low threshold ) and the adjacent cell is higher than the Threshold_lowp (low priority frequency threshold), currently only one Threshold_Serving, lowp of this cell can be configured, and different thresholds cannot be configured for different frequencies. [0004] During network des...

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Problems solved by technology

[0003] In the prior art, when reselecting a high-priority frequency point to a low-priority frequency point, the Srxlev (Cellselection RX level value, cell selection receiving level value) of the cell needs to be lower than Threshold_Serving, lowp (serving carrier frequency low threshold ) and the neighboring cell is higher than Threshold_lowp (low priority frequency threshold), currently only one Threshold_Serving and lowp of this cell can be configured, and different thresholds cannot be configured for different frequencies

[0004] During network design, the characteristics of each frequency band are different (for example, some frequency bands have higher bandwidth, and some frequency bands have higher coverage). Therefore, a bearer strategy should be designed according to the characteristics of each frequency band. For example, there are three frequency bands in a certain network, each of which is f1 , f2, f3, frequency f1>f2>f3, bandwidth f1f2>f3, when designing the network bearer strategy, it is hoped that f1 Reselect to f2 when it is lower than -105dBm, and reselect to f3 when f1 is lower than -110dBm. However, in the prior art, there is only one threshold (Threshold_Serving, lowp) for the serving cell, which cannot be configured flexibly and affects network performance.

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