A mobile communication system handover control method

Abstract

The invention discloses a control method for switching of a mobile communication system. The method uses the framework characteristic of a TD-SCDMA (time division-synchronization code division multiple access) system, RNCs (radio network controllers) can interact information such as state information, load information and interference information of the resource and the like by an Iur interface or a CN (communicating net), and each RNC can maintain an information list of the neighboring area in real time. According to a measuring result reported by UE (user equipment) and the information list of the neighboring area maintained by the RNC, the RNC can select the optimal target cell on the basis of a certain criterion and algorithm so as to avoid switching to a target cell with insufficient available resource, too big interference or bad communication link quality, thus the purposes of reducing switching delay, improving switching success rate and reducing switching drop call rate can be achieved.

Description

technical field [0001] The invention relates to the field of wireless communication networks, and mainly relates to an improved method for switching control of a mobile communication system. Background technique [0002] Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) is a 3G wireless transmission scheme for the third generation mobile communication system submitted by China to the International Telecommunications Union (ITU) in 1998. It is a brand new mobile communication system that adopts TDD mode. At the same time, a series of high technologies such as synchronous CDMA, smart antenna, software radio, relay switching and dynamic channel allocation are adopted. Compared with WCDMA and CDMA2000, TD-SCDMA has obvious advantages such as no need for paired frequency bands, high spectrum utilization, strong flexibility, suitable for symmetrical and asymmetrical data services, and low cost of system equipment. [0003] Handover technology is a research hotspo...

AI Technical Summary

Problems solved by technology

[0006] (1) Traditional handover algorithm: When the signal strength received from the adjacent base station is greater than the signal strength received from the serving base station, the mobile station terminal will initiate a handover measurement request to the base station controller. If the base station controller issues a handover command, the system The handover request will be processed. When the target base station is in a busy period and the network is congested, the handover call will be forcibly interrupted, resulting in call drop

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