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Test method for power control subchannel in code division multiple access system

A code division multiple access and power control technology, applied in the field of mobile communication equipment testing, can solve the problems of high difficulty and high cost, and achieve the effect of reducing implementation cost and improving test efficiency

Inactive Publication Date: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when building an access terminal emulator by yourself, you must add other hardware and software to realize this function, so the difficulty and cost of implementation are relatively high

Method used

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  • Test method for power control subchannel in code division multiple access system
  • Test method for power control subchannel in code division multiple access system
  • Test method for power control subchannel in code division multiple access system

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] According to an embodiment of the present invention, a method for testing a power control subchannel is provided.

[0032] Such as Figure 4 As shown, the test loop consists of the sector under test (base station), forward link attenuator, access terminal, reverse link attenuator, AWGN signal generator (AWGN signal source), and channel power measurement equipment, etc. . with existing technology figure 1 In contrast, in the present invention, the position of the AWGN generator is changed from before the attenuator to after the attenuator, and a test bench (or called a test background) is also set up.

[0033] Wherein, the transmitted signal of the access t...

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Abstract

The invention discloses a method for measuring a power-control sub-channel in a CDMA system. The method comprises the following steps: connecting a sector to be measured and an access terminal, so as to synthesize the transmission signals of the access terminal with the noise generated by the additive white Gaussian noise, that is, an AWGN generator, through an attenuator; inputting into the radiofrequency input port of the sector to be measured, so that the AWGN generator can be connected to a measuring platform; setting the AWGN generator, so that the noise power spectrum density of the radiofrequency input port of the sector to be measured can reach -84dBm / 1.23MHz; establishing a measurement application conversation; opening a link and configuring the negative measurement application protocol of the measurement application, so that the information channel data rate of the negative data accords with 153.6kbps; adjusting the negative link attenuator until the measured packet error rate of the sector to be measured is about 1%; and starting the measuring process of the measuring station, so that the output power of the AWGN generator varies periodically according to the scheduled mode and then recording the number of the power increasing and power decreasing control bit corresponding to the time standard pulse of the input terminal.

Description

technical field [0001] The present invention relates to the testing field of mobile communication equipment, and in particular, relates to a testing method of a power control subchannel in a Code Division Multiple Access (CDMA) system. Background technique [0002] In the test protocol "Recommended Minimum Performance Standards for cdma2000 High Rate Packet Data Access Network (C.S0032-0v2.0)", a test method for the power control sub-channel of the CDMAEVDO system is provided. [0003] Such as figure 1 As shown, in the above method, the test environment is established first, the access terminal emulator controls the access terminal output power to be cyclically changed according to a certain period of rising / falling, and records the power rise and power Number of down control bits. The method is based on the following principle of operation: Once the access terminal has established a connection, the access network sends '0' (up) and '1' (down) RPCs to the access terminal b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/24H04W24/00
CPCY02B60/50Y02D30/70
Inventor 朱石岩
Owner ZTE CORP
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