Pseudo-random series producing method for use in Markov paging test

A pseudo-random sequence and memory technology, applied in multiplex communication, communication between multiple stations, code division multiplexing system, etc., can solve the problem of difficult synchronization between base station and mobile station, and achieve easy synchronization , accurate monitoring, easy effect

Inactive Publication Date: 2003-03-26
ZTE CORP
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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of generation method that is applicable to the generation method of the pseudo-random sequence in the Markov calling test of the forward reverse traffic channel link quality detection between CDMA system base station and mobile station, described method realizes simple, and Can solve the problem of difficult synchronization between the base station and the mobile station

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Embodiment Construction

[0008] The method of the present invention is a method for pseudo-random sequence generation in the Markov call test, through which the required Markov data frame can be generated. Both the mobile station and the base station use the same pseudo-random sequence method to generate Markov data frames, which provides the necessary conditions for the Markov test.

[0009] First of all, because both the base station and the mobile station predict the Markov data frame generated by the other party in advance, and continuously generate the next frame according to the previous frame, the respective forward or reverse traffic channels of the base station and the mobile station are pseudo-random There is an initial synchronization problem between sequences. Therefore, the premise of the method of the present invention is to solve the synchronization between the two: the base station first stores the electronic serial number sent by the mobile station, which is now assumed to be 0x9F0003...

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Abstract

The base station stores the electric serial number sent by the mobile station. The base station takes the current GPS time every 20 ms. The 'exclusive or' logic operation is carried out between the absolute time obtained and the 32 digits set up at the mobile station. Whether the low 9 digits of the value of result with logic operation being executed is identical to the low 9 digits of the serialnumber or not is determined. If yes, the low 31 digits of the said value of result are assigned as the status value of the pseudo random sequence storage. Then, from the preset formula, the current status value of the pseudo random sequence storage is calculated and the Markov data frame utilized for link test is generated. The invented method solves the synchronization issue of generating pseudorandom sequence and makes the statistics of the error frame rate of the force inverted link as well as monitors its quality.

Description

technical field [0001] The invention relates to a quality detection method suitable for forward and reverse traffic channel links in a code division multiple access (CDMA) system, in particular, a pseudo-random sequence generation method applied in Markov call testing. Background technique [0002] CDMA system performance test items often include testing the transmission quality of air traffic channels. The standard of transmission quality is generally represented by the frame error rate, so the more accurate the method for calculating the frame error rate, the more it can reflect the actual transmission quality of the air traffic channel. There are usually two methods to detect the transmission quality of the air traffic channel, one is the mobile station link loopback test, the test principle of this method is as follows: the base station sends a frame to the mobile station, and stores the frame rate, and the mobile station After receiving the frame, the station sends the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B17/00H04J13/02H04W24/00
Inventor 续斌谭国平
Owner ZTE CORP
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