Marking method and device for carrier power of multi-carrier radio communication system
A technology of wireless communication and carrier power, applied in multi-frequency code system, communication between multiple stations, transmission control/equalization, etc., can solve problems such as low efficiency, poor precision, slow manual calibration speed, etc., to achieve Reduction of requirements, reduction of complexity and cost, automatic calibration method and effect of device simplification
Inactive Publication Date: 2012-10-10
RUGAO CHANGJIANG SCI & TECHCAL IND CO LTD
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Problems solved by technology
From this point of view, due to slow speed, low efficiency and poor accuracy of manual calibration, the key to automatic calibration is to simplify the calibration method and its device by improving the detection method of carrier power.
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[0041] The automatic calibration device for the carrier power of a multi-carrier wireless communication system provided by the present invention is used for a multi-carrier base station, including: a plurality of carrier gain adjustment units for the forward link of the base station, a baseband output control unit for a plurality of carriers, and a power detection unit , also includes a control unit; wherein, the control unit reads the total power of the base combat transmission detected by the power detection unit by opening one carrier baseband output and closing the other carrier baseband outputs, and the total power is the output of the opened carrier baseband Carrier transmit power; then compare the read carrier transmit power with the carrier power set value, and automatically adjust the gain of the carrier gain adjustment unit according to the comparison result, so as to determine the transmit power obtained by each carrier of the base station. Since the present inventio...
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A scaling method for carrier wave transmission power of a multiple carrier wireless communication system is applicable to multiple carrier base stations. The method comprises the steps of: a) turning on the output of a carrier wave band signal and turning off the output of other carrier wave band signals; b) comparing the checked carrier wave transmission power with the set value of the carrier wave transmission power, and adjusting the gaining of the corresponding carrier wave according to the compared results until the checked carrier wave transmission power is equal to the set value, and then concluding the scaling of the carrier wave transmission power; c) judging whether the scaling of all carrier wave transmission powers are completed. If yes, open all carrier wave base band signal outputs so as to output all carrier wave powers; if no, move to the next carrier wave base band output control, and return to Step (a). The invention does not take into account the issue of frequency band relevancy, thus greatly lowering the requirement on power checking device and the complication and cost of 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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IPC IPC(8): H04L27/26H04B7/005H04B7/26
Inventor 肖荣建潘甲山龙始华黄沛瑜
Owner RUGAO CHANGJIANG SCI & TECHCAL IND CO LTD