Method and device for carrying out standing wave detection on antenna
A detection device and standing wave detection technology, applied in the field of communication systems, can solve problems such as increasing product cost, PCB board area and layout difficulty, and achieve the effect of improving overall performance, facilitating product operation and maintenance, and flexible implementation methods.
Inactive Publication Date: 2011-10-12
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0006] In the prior art, since a special-purpose detection chip is used for standing wave detection, a special-purpose detection chip and an FPGA need to be set on the PCB (printed circuit board) surface of the RRU at the same time, which undoubtedly increases the cost of the product; meanwhile, due to the need The FPGA and the dedicated detection chip cooperate with each other to complete the standing wave detection. Therefore, it is necessary to accurately design the interaction process between the two components, which increases the implementation complexity of the standing wave detection. In addition, due to the increase of components on the PCB board, it may lead to The area of the PCB board and the difficulty of layout increase, which has a certain negative impact on the requirements of the high integration of the existing board design
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[0024] In order to reduce the implementation complexity of standing wave detection and reduce the detection cost, refer to figure 2 As shown, in the embodiment of the present invention, the patented detection chip is no longer used for standing wave detection, but a new functional module is added to the detection device, so that the detection device can directly realize the standing wave detection according to the statistics of the output data of the antenna, In this way, on the basis of replacing the dedicated detection chip, the standing wave detection function can be realized, while the implementation complexity and product cost are reduced.
[0025] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] refer to image 3 As shown, in the embodiment of the present invention, the detection device (eg, FPGA) includes an acquisition unit 30, a detection unit 31 and a calculation unit 32, wherei...
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The invention discloses a method and device for carrying out standing wave detection on an antenna, and the method and device are used for reducing the complexity for implementing the standing-wave detection and decreasing the detection cost. The method comprises the following steps: adding a new functional module in an FPGA (field programmable gate array) on an RRU (radio remote unit) so as to carry out standing-wave detection on the antenna; acquiring the output data of the antenna; carrying out OPD (output power detection) and RPD (reflection power detection) on the antenna in accordance with the output data of the antenna; and acquiring the SWR (standing-wave ratio) of the antenna in accordance with the OPD and RPD results. Thus, a special detection chip is not required to be added on a PCB (printed circuit board) of the RRU, thereby effectively decreasing the complexity in achieving the circuit layout and detection procedures, reducing the product cost and improving the integration of product design. According to the scheme, the standing-wave detection is carried out on the antenna, thus the implementation way is flexible, the detection accuracy is adjustable, products are convenient to run and maintain, and the overall performance of the system is improved.
Description
technical field [0001] The invention relates to a communication system, in particular to a method and a device for detecting a standing wave of an antenna. Background technique [0002] In the TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access) wireless communication system, the base station products in the TD-SCDMA system mainly include indoor BBU (Building Base band Unit, baseband processing unit) and Remote RRU (Remote RF Unit, remote radio unit). [0003] Under the existing technology, on the one hand, when the power of the downlink transmission signal is relatively large or fully loaded, in order to ensure that the power amplifier on the RRU will not be damaged due to the standing wave difference caused by the load not being connected properly, it is usually necessary to perform SWR on the RRU first ( Standard Wave Ratio, standing wave detection), to confirm that the standing wave is normal before ...
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IPC IPC(8): H04B17/00H04B17/327H04B17/336
Inventor 王新生吴永海李大庆龚珉杰
Owner DATANG MOBILE COMM EQUIP CO LTD