Serving Cell Channel Switching Control Method and Device

Abstract

The invention discloses a channel switch control method and device in a serving cell. The method comprises: when an asynchronous switch is required, the base station controller sends a channel activation instruction to the base station of the target serving cell; the base station of the target serving cell returns the channel to the base station controller Activate the response and obtain the preset handover detection request level; the base station controller sends a handover instruction to the base station of the original serving cell, and the base station of the original serving cell forwards the handover instruction to the mobile station; the mobile station sends a handover access request to the target The base station of the serving cell; the base station of the target serving cell judges whether the signal level value of the handover access request is less than the preset handover detection requirement level; if yes, the mobile station returns to the channel of the original serving cell; if not, the mobile station Perform normal channel switching. The invention effectively avoids the call drop problem of the mobile station caused by the unbalanced uplink and downlink of the target service cell, and ensures the quality of the call.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for channel switching control of a serving cell. Background technique [0002] In the GSM (Global System for Mobile Communications, Global System for Mobile Communications) communication field, the position of the mobile station (Mobile Station, MS) held by the user is not fixed, while the base station (Base Transceiver Station, BTS) on the network side is fixed. If the MS held by the user moves from the coverage area of ​​one base station to the coverage area of ​​another base station during the call, or the quality of the call is degraded due to external interference, an effective rescue measure is handover, and the user’s MS Switch from the voice channel of the original serving cell to the idle voice channel of a new serving cell near the MS, that is to realize the switching control of the cell. [0003] Traditional cell handover control, be...

AI Technical Summary

Problems solved by technology

[0003] Traditional cell handover control, because only the downlink reception level information of the target cell is judged before the handover, and the uplink access situation after the MS accesses the target cell cannot be predicted. After the target cell is selected, the MS follows the traditional handover method Initiate access in the target cell

If the power setting of the target cell is large and the uplink and downlink are unbalanced, the MS will easily drop calls after successfully accessing the target cell, and the call quality will also be affected.

The existing technology generally adopts that after the MS accesses the target cell, it receives the effective measurement report of the MS, and uses a certain algorithm to make a handover decision to allow the user to handover from the cell. These algorithms need to receive multiple measurement reports to make a reasonable decision , for the user, there will be a certain period of time when the voice perception is poor; and when the BTS fails to solve the measurement report of the MS due to the balance between the uplink and the downlink, the corresponding neighbor cell information cannot be obtained, so the MS cannot be handed over out, which may eventually cause the user to drop the call

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