Pulse synchronized method and module in receptivity test of mobile communication terminal

A technology for mobile communication terminals and receiving performance, applied in receiver monitoring, multiplexing communication, transmission systems, etc., can solve the problems of cumbersome implementation, multiple storage spaces, and large amount of code, and achieve shortened research and development time, algorithm Simple, software-easy effects

Inactive Publication Date: 2007-09-26
UTSTARCOM TELECOM CO LTD
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AI Technical Summary

Problems solved by technology

This synchronous mode has following shortcoming under the platform that realizes modulation and demodulation algorithm with digital signal processing (DSP) software: (1) need to embed a section of code that is used for testing similar to common calling process in mobile handset software, The software state is complex, the implementation method is cumbersome, the code volume is large, and it takes up too much storage space; (2) During the rough synchronization process, the scanning method requires a very complicated DSP demodulation algorithm, which is difficult to implement

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  • Pulse synchronized method and module in receptivity test of mobile communication terminal
  • Pulse synchronized method and module in receptivity test of mobile communication terminal

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] Fig. 1 is a software module diagram implementing the receiving performance testing method of the mobile communication terminal of the present invention. As shown in Figure 1, this software module mainly includes physical layer 100 (located among the upper layer software (ie protocol stack) of mobile communication terminal), DSP (data signal processing) unit 103, radio frequency drive unit 104, and analog baseband 105.

[0030] Next, the functions of the above components and the relationship among them will be described in detail.

[0031] The physical layer 100 includes a shared memory 101 and a timing control module unit 102, which is used for timing control, and obtains the demodulation result (correct or wrong) and the decoded data of the DSP unit 103 by reading the data in the shared memory 101 and time and frequency deviation.

[0032] Speci...

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Abstract

The invention provides a pulse synchronization method and module whose arithmetic is simple and easy to realize in mobile communication terminal receiving property test. The method is used to realize the synchronization between the radio frequency receiving window and burst pulse of test equipment, thereinto, Tb is the time interval of burst pulse, Tr is the time interval of opening the radio frequency receiving window, Delta T is difference between Tr and Tb, Toffset is original time warp between the radio frequency receiving window and burst pulse when the radio frequency receiving window is opened first time before synchronization, firstly, judging whether Toffset exceed the set range, if it exceeds the set range, then Tr=Tb+ Delta T is the time interval to open the radio frequency receiving window until the Toffset does not exceed the set range, secondly, correcting the time interval Tr of opening said radio frequency receiving window to fulfill Tr=Tb+Toffset.

Description

technical field [0001] The invention relates to a performance testing method and module of a mobile communication terminal, in particular to a method and a module for realizing the synchronization of the radio frequency receiving window of the mobile communication terminal and the burst pulse of the test equipment when testing the receiving performance of the mobile communication terminal. Background technique [0002] Currently, all mobile communication terminals must be tested for receiving performance during the R&D and mass production stages. This kind of test requires that the burst pulse sent by the test instrument and the radio frequency receiving window of the mobile communication terminal maintain a more accurate synchronization in time. The time synchronization method currently used by most mobile communication terminals is: first, find the time position of the burst pulse by scanning in a very long receiving time window (usually greater than the transmission time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04Q7/32H04Q7/34H04J3/06H04B17/29
Inventor 廖智军刘伟成
Owner UTSTARCOM TELECOM CO LTD
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