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Algorithms for detecting feeder line radio-frequency power and antenna standing-wave ratio in mobile communication system through RFID

A mobile communication system, radio frequency power technology, applied in the field of calculation of mobile communication system feeder radio frequency power and antenna standing wave ratio through RFID detection, can solve the problems of installation and construction inconvenience, cost increase, cost increase, etc., to save costs and reduce The Effect of Engineering Difficulty

Inactive Publication Date: 2011-03-30
珠海银邮光电技术发展股份有限公司
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Problems solved by technology

At present, such a monitoring system has the following problems: the master-slave (stationary) machine uses a network cable to realize 1-wire communication, and its internal power supply is not a complete passive system; when using ordinary network cables, the communication distance between the master and slave machines is relatively long Short, the use of high-grade cables can increase the communication distance, but it will increase the cost; the twisted pair connection between the slave machine and the feeder monitoring terminal also increases the cost; the structure of the whole system is complicated, which brings inconvenience to the installation and construction

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  • Algorithms for detecting feeder line radio-frequency power and antenna standing-wave ratio in mobile communication system through RFID
  • Algorithms for detecting feeder line radio-frequency power and antenna standing-wave ratio in mobile communication system through RFID
  • Algorithms for detecting feeder line radio-frequency power and antenna standing-wave ratio in mobile communication system through RFID

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Embodiment Construction

[0024] A calculation method for detecting the radio frequency power of a mobile communication system feeder through RFID, including the feeder and antenna between the repeater or base station of the mobile communication system and the antenna, as well as the master, slave, duplexer and RFID for system monitoring device, the feeder radio frequency power calculation method includes:

[0025] For a certain RF power tag R, its response sensitivity is a constant Pref, and the output power of the reader at full power can be measured by the output power detection of the reader, expressed as Po;

[0026] When the reader has a normal power inventory, the tag R can be inventoried by the reader;

[0027] When the reader reduces the output power step by step until n dBm is attenuated, the tag R can no longer be stored by the reader;

[0028] Therefore, it can be known that the power value of the RFID signal received by the tag R when the reader transmits at full power is P1=Pref+n-1;

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Abstract

The invention relates to algorithms for detecting feeder line radio-frequency power and antenna standing-wave ratio in a mobile communication system through RFID. A feeder line radio-frequency power algorithm comprises that: for a certain radio-frequency power tag R, the response sensitivity is a constant Pref, and the output power of full power of a reader can be detected through the output power of the reader; and an antenna standing-wave ratio algorithm comprises that: for a certain standing-wave ratio tag V, when an antenna is normal, the reflected energy of the antenna is insufficient toexcite the tag, the tag V cannot be stored in a reader disc, and the reader sets a reasonable value for the standing-wave ratio of the tag V for representing a normal state of the standing-wave ratio. The calculation methods for the feeder line radio-frequency power and the antenna standing-wave ratio can effectively monitor the antenna and the feeder line in the mobile communication system so asnot to monitor the system through wired connection without additional cable. The engineering difficulty can be reduced, and the cost of network lines and twisted pairs in the mobile communication system is saved.

Description

technical field [0001] The invention relates to a detection method of a wireless communication device, in particular to a calculation method for detecting the radio frequency power of a mobile communication system feeder and the standing wave ratio of an antenna through RFID. Background technique [0002] With the rapid development of my country's mobile communication industry, especially the continuous expansion of 3G networks, wireless network optimization and network coverage are increasingly showing their importance. Commonly used coverage technologies include outdoor macro cells, indoor micro cells, distributed base stations, various repeaters (trunk amplifiers, tower top amplifiers, wireless co-frequency repeaters, optical fiber repeaters, frequency shift repeaters, carrier pools ) and other technical solutions, according to different communication standards, can be divided into equipment of different standards such as GSM, CDMA, WCDMA, TD-SCDMA, and CDMA2000. But no ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/00G01R27/06
Inventor 朱劲松彭明吕静静王永刚
Owner 珠海银邮光电技术发展股份有限公司
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