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Self-excitation detecting and processing method of CDMA (Code Division Multiple Access) Repeater

A repeater and self-excited technology, which is applied in repeater system design and communication fields, can solve problems such as system impact, achieve the effects of avoiding negative impact, reducing cost increase, and meeting actual needs

Inactive Publication Date: 2012-07-04
APLUS COMM TECH BEIJING
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention timely detects and solves the self-excitation problem of the CDMA repeater equipment, ensures the safe and reliable operation of the CDMA repeater equipment, solves the impact on the system when the existing CDMA repeater equipment self-excites, and produces The following beneficial effects:

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  • Self-excitation detecting and processing method of CDMA (Code Division Multiple Access) Repeater
  • Self-excitation detecting and processing method of CDMA (Code Division Multiple Access) Repeater

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Embodiment Construction

[0013] A method for self-excited detection and processing of a CDMA repeater, comprising: preset a detection process on the CPU of an existing repeater monitoring unit, the process at least includes two working steps of self-excited detection and self-excited processing, The self-excitation detection step detects whether the variation of the output power of the repeater is proportional to the variation of the gain to determine whether the repeater generates self-excitation. If self-excitation occurs, the detection program takes self-excitation processing measures, that is, uplink and / or Or downlink automatic gain control or directly turn off the power supply, if there is no self-excitation, the equipment will operate normally.

[0014] The self-excited detection step includes the following processes:

[0015] (1), the CPU initializes each value;

[0016] (2), CPU detects and stores uplink input signal and output power value;

[0017] (3), compare the detected uplink output p...

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Abstract

The invention belongs to the repeater system design field in the communication field, in particular relates to a self-excitation detecting and processing method of a CDMA (Code Division Multiple Access) Repeater. The method specifically comprises: a detection procedure is preset above a CPU (Central Processing Unit) of the existing repeater monitoring unit, wherein the procedure at least comprises two working steps of self-excitation detection and self-excitation processing; in the self-excitation detecting step, whether output power variation of the repeater is in proportion to gain variation of the repeater is detected so as to judge whether the repeater generates self-excitation, if the repeater generates self-excitation, self-excitation processing measures are taken in the detection procedure, i.e. uplink and / or downlink automatic gain control are performed or the power supply is switched off directly, and if no self-excitation happens, the device can be operated normally. According to the invention, self-excitation of CDMA repeater is detected and solved in good time, safe and reliable operation of the CDMA repeater device is ensured, influence of self-excitation of the existing CDMA repeater device on a system is solved, and practical requirements of clients can be met effectively.

Description

technical field [0001] The invention belongs to the field of repeater system design in the communication field, and in particular relates to a method for self-excited detection and processing of a CDMA repeater. Background technique [0002] With the rapid development of the mobile communication industry, the requirements for mobile network coverage of various operators are also constantly improving, such as the pursuit of lower cost, more reliable work, and easier installation for the repeater system. As we all know, in the CDMA network, the self-excitation problem has always been the weakness of the wireless repeater engineering application. When the self-excitation phenomenon occurs, it will not only affect the normal operation of the repeater equipment itself, but will also seriously affect the relevant base stations, causing the entire communication system to fail. If it cannot operate normally, it will affect the quality of the call as little as it affects the entire c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W88/08
Inventor 郑高阳周志斌方朝进任榜发饶志昌李连平
Owner APLUS COMM TECH BEIJING
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