Marking method and device for carrier transmission power of multi-carrier radio communication system

A carrier transmission power, wireless communication technology, applied in the direction of selection device, radio/induction link selection arrangement, transmission control/equalization, etc., can solve the problems of low efficiency, slow manual calibration speed, poor accuracy, etc. requirements, increase speed, reduce complexity and cost

Inactive Publication Date: 2008-04-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From this point of view, manual calibration is slow, inefficient, and poor in accuracy; the key to automatic calibration is to simplify the calibration method and its device by improving the carrier power detection method and its device.

Method used

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  • Marking method and device for carrier transmission power of multi-carrier radio communication system
  • Marking method and device for carrier transmission power of multi-carrier radio communication system
  • Marking method and device for carrier transmission power of multi-carrier radio communication system

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Embodiment Construction

[0043] The multi-carrier wireless communication system carrier transmission power calibration device provided by the present invention is used in a multi-carrier base station, including: a plurality of carrier gain adjustment units of the forward link of the base station, a baseband power detection unit of a plurality of carriers, and a power detection unit , also includes a control unit; wherein, the control unit calculates and obtains the power of each carrier by reading the total power detected by the power detection unit and the baseband power of each carrier detected by the baseband power detection unit; The set value of the power is compared, and the gain of the carrier gain adjustment unit is automatically adjusted according to the comparison result, so as to determine the transmission power of each carrier of the base station. Since the present invention obtains the power of each carrier indirectly by detecting the total power and the baseband power of each carrier, it ...

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Abstract

A scaling method for multiple carrier transmission power of a multiple carrier wireless communication system is applicable to multiple carrier base stations. The method comprises the steps of: a) calculating transmission power of each carrier wave according to total transmission power of the base station and the power of each carrier wave band signal; b) judging whether the transmission power of each carrier wave reaches the set value of the carrier wave power thereof; if all reaching, concluding the flow; if no, adjusting the carrier wave gaining not reaching the set value thereof, and then returning to step (a). The invention adjusts the gaining not for restricting the total power and without considering the issues related to frequency band, thus lowering the requirements for power checking devices and the complication and cost of the base station system.

Description

technical field [0001] The invention relates to the transmission power control technology of the wireless communication system, in particular to the automatic calibration technology of the base station carrier transmission power control of the multi-carrier wireless communication system. Background technique [0002] In a wireless communication system, the forward transmit power determines the forward coverage. Typically, forward coverage is limited both by reverse coverage and by the need for forward coverage. For example, if the forward coverage is greater than the reverse coverage, it will cause inconsistencies in the forward and reverse coverage, and the terminal cannot access the wireless communication system when there is a forward signal; in a cellular communication system, if the forward coverage If it is too large, it exceeds the required forward coverage and overlaps with the coverage of adjacent cells, which will cause interference to adjacent cells. [0003] In...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04Q7/30
CPCY02B60/50
Inventor 肖荣建龙始华黄沛瑜潘甲山
Owner ZTE CORP
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