TD-SCDMA signal generator and its regulating method

A technology of TD-SCDMA and signal generating device, which is applied in multiplexing code generation, transmission monitoring, electrical components, etc., and can solve problems such as high price, deterioration of accuracy, and inconvenient clock calibration

Active Publication Date: 2006-11-22
武汉烽合智达信息技术有限责任公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similar foreign instruments have the following problems: 1. Expensive
2. It is inconvenient to calibrate the clock after the instrument is aging. It needs to be calibrated by the manufacturer, and additional charges are required
3. The output power is small, and the accuracy gradually deteriorates with the aging of the instrument
Domestic manufacturers have not yet launched similar signal generating devices. Once TD-SCDMA is networked nationwide, it will bring a greater economic burden to related manufacturers.

Method used

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  • TD-SCDMA signal generator and its regulating method
  • TD-SCDMA signal generator and its regulating method
  • TD-SCDMA signal generator and its regulating method

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Embodiment Construction

[0034] The structure and calibration method of the signal generating device of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] figure 1 The structure of the signal generating device of the present invention is shown. The device described in the figure includes: logic module, up-converter, DA converter, IF amplifier filter module, mixer, RF amplifier filter module, power detector, processor, constant temperature crystal oscillator (OCXO), temperature sensing module, Voltage controller (DAC), phase-locked loop (PLL), local oscillator (LO), communication serial port.

[0036]The signal generating device used in the TD-SCDMA system of the present invention receives the user's configuration parameters through the local liquid crystal display and keyboard module, or through the local maintenance terminal (LMT), such as selecting the parameters corresponding to the output channel, and then the device is in the processor...

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Abstract

The invention discloses a signal generating device and calibration method of TD-SCDMA system net rule, net optimization and facility test, which comprises the following parts: logical module, up converter, DA converter, IF magnification filtering modular, frequency mixer, RF magnification filtering modular, power detector, handler, thermostatic crystal oscillator, temperature sensing modular, voltage controller, phase-locked loop, local oscillator, communication serial port, wherein the device can launch continuous wave signal of base station work frequency band, TD-SCDMA signal of launching base station or terminal, which can realize TD-SCDMA network planning, network optimization and device test work.

Description

technical field [0001] This device relates to the test equipment of Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, specifically, it relates to the signal generating device and its Calibration method. Background technique [0002] During the network planning, network optimization and testing of the TD-SCDMA system, various equipment manufacturers and engineering service providers, including repeater providers, need signal generating devices to determine the propagation model and the best coverage equipment. location, conduct coverage simulation testing and device testing. [0003] According to the above test requirements, it is necessary to use a signal generating device, which is required to be able to send continuous wave (CW) signals and TD-SCDMA signals. Among them, the CW signal is used for propagation model correction, and the TD-SCDMA signal is used for pilot coverage, base station signal error rate test and equipment test. When transmitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04J13/10
Inventor 付永魁孙文法卢俊峰牛桂新孙丹吕森刘广才李大庆王秀君
Owner 武汉烽合智达信息技术有限责任公司
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