Radio channel switching method and mobile communication system and base station and mobile station

Abstract

A mobile communication system includes base stations and a mobile station. The system comprises a part which measures an amount of information transferred between the base station and the mobile station, a comparator which compares the measured amount of information with first and second threshold values corresponding to a currently used wireless channel, a wireless channel changeover part changes the current wireless channel to a wireless channel with a transmission capability higher or lower than that of the current wireless channel when the measured amount of information is above the first threshold value or below the second threshold value, respectively.

Description

technical field [0001] The invention relates to a method for switching an established radio channel between a base station and a mobile station to another radio channel. In addition, the present invention also relates to a mobile communication system adopting the method, a base station and a mobile station. Background technique [0002] In a mobile communication system such as the currently popular mobile phone system, the entire service area is divided into a plurality of relatively small radio areas called "cells" when providing services. A mobile communication system includes a plurality of base stations (each covering a divided cell) and mobile stations communicating with the base stations. The base station and the mobile station communicate with each other through the radio channel established between them. [0003] Generally, the radio channel established between the base station and the mobile station varies according to the type of communication between them. For...

AI Technical Summary

Problems solved by technology

Although this information is essential for mobile communications where the propagation environment changes drastically, this information in turn affects the transmission efficiency

[0013] In the mobile communication environment, if the mobile station uses a plurality of radio channels together, these radio channels all transmit the same information, so the transmission efficiency is reduced

This brings not only the problem that the mobile station cannot achieve the desired transmission efficiency, but also the problem that the overall transmission efficiency of the entire system decreases due to the reduction in the number of radio channels available to other mobile stations

In fact, in W-CDMA systems, uplink interference and / or downlink transmit power are often limited to system transmission capabilities

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