Method for enhancing mobile terminal measuring ability

Abstract

The method for improving the measurement capability of the mobile terminal includes: (a) measuring the adjacent system side equipment according to the searched first system side equipment information to obtain the second system side equipment information, the system side equipment information including synchronization signal start time information , frequency offset information; (b) according to the time interval between the last measurement time and the current measurement time and the frequency offset information saved by the mobile terminal, use the prediction algorithm to calculate the time difference of the start time of the predicted synchronization signal, and use the time difference to predict Correct to obtain the start time of the third synchronization signal; (c) measure the start time of the fourth synchronization signal according to the start time of the third synchronization signal, and calculate the difference between the start time of the third and fourth synchronization signals, if the difference is less than the When the mobile terminal searches the window, it uses the fast measurement mode to measure and saves the measured information, otherwise it uses the slow measurement mode to measure and saves the measured information.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for improving the measurement capability of a mobile terminal in an asynchronous communication system. Background technique [0002] In a wireless communication system, in order to ensure that the wireless link established between the system side equipment and the mobile terminal can maintain a relatively stable and continuous reception, the mobile terminal needs to continuously search and measure adjacent system side equipment. Depending on the signal quality of the device, the mobile terminal can choose to communicate with the best system-side device. [0003] For asynchronous communication systems, the situation is more complicated. In an asynchronous communication system, there is a certain frequency offset between the system-side equipment, and there is also a certain frequency offset between the mobile terminal and the system-side equipment. Since modern comm...

AI Technical Summary

Problems solved by technology

However, this leads to mobile terminals needing to improve the parallel processing capabilities of search and measurement, which is reflected in the communication processor, which increases the area and cost of the chip

Moreover, frequent cell measurements also lead to increased software and hardware processing load, increasing system power consumption

To make matters worse, if the initial frequency offset between the mobile terminal and the device under test is relatively large, then the method of shortening the measurement time will not be effective

Moreover, if the frequency offset exceeds the mobile terminal's ability to track and capture the start time of the synchronization signal, the measurement time of the mobile terminal will be greatly extended, so the mobile terminal will not be able to complete the measurement within the specified time. The number of system-side devices required to measure protocol metrics

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