Method and apparatus for switching decisions

Abstract

The invention provides a method and apparatus for switching decisions, and relates to the technical field of wireless communications. The method comprises the steps of acquiring, when a first cell signal and / or a second cell signal reach a basic switching condition, spectral efficiencies of a first cell and a second cell respectively, wherein the second cell is a current service cell for a terminal while the first cell is an adjacent cell to the second cell; comparing the spectral efficiencies of the first cell and the second cell, and when the spectral frequency of the first cell is greater than the spectral frequency of the second cell, predicting the service rate of the first cell after the terminal switches to the first cell according to the spectral efficiency of the first cell; and when the service rate of the first cell is greater than or equal to a service rate expected threshold, carrying out the switching and switching the terminal to the first cell. The scheme of the invention solves the problems that the differentiation of the spectral efficiencies cannot be achieved in the prior art and thus the frequency resources cannot be effectively utilized.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a handover judgment method and device. Background technique [0002] With the development of communication technology, communication systems have been diversified, such as: GSM (Global System for Mobile Communication, Global System for Mobile Communications) system, TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access) system and LTE (Long Term Evolution, long-term evolution ) system, etc. In order to improve user experience, when the mobile terminal is in different cells at the same time, it often selects the optimal cell through inter-system handover or intra-system handover. [0003] The main measurement quantity of the existing inter-system handover is the beacon channel quality of each system, but the handover decision is made based on the signal strength. Although the basic requirements of s...

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Problems solved by technology

[0003] The main measurement quantity of the existing inter-system handover is the beacon channel quality of each system, but the handover decision is made based on the signal strength. Although the basic requirements of service continuity can be guaranteed, the difference in spectral efficiency of each system cannot be realized, so it cannot Effective use of frequency resources, for example, for voice-based services, the bearing efficiency of the GSM system is about 0.0023mErl / Hz (considering 3*4 frequency reuse) and is constant within the coverage area, and the average downlink efficiency of the TD-LTE system is about 0.0033mErl / Hz (same frequency multiplexing, 20MHz carrier), but at the cell boundary, TD-LTE will drop to 0.0011mErl / Hz, which is lower than the GSM level

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