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Gain adjustment method and device

A technology for gain adjustment and amplification gain, which is applied in the field of gain adjustment methods and devices, can solve problems such as base station interference in amplification gain adjustment, and achieve the effect of accurately adjusting amplification gain and optimizing performance

Active Publication Date: 2016-10-05
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology

[0012] The purpose of the present invention is to provide a gain adjustment method and device, which solves the problem that the improper adjustment of the amplification gain of the repeater causes serious uplink interference to the base station, realizes the precise adjustment of the amplification gain of the repeater, and optimizes the repeater performance

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  • Gain adjustment method and device

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Embodiment Construction

[0080] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0081] The present invention aims at the problem that the improper adjustment of the amplification gain of the repeater in the prior art causes serious uplink interference to the base station, and provides a gain adjustment method and device, which determines the reference amplification gain of the repeater through the receiving power of the dedicated reference signal of the LTE cell , and then adjust the uplink amplification gain and downlink amplification gain of the repeater according to the determined reference amplification gain; since the received power of the LTE cell-specific reference signal can reflect the path loss information between the base station and the repeater, it does not depend on the The load status can solve the problem of large upl...

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Abstract

The present invention provides a gain adjustment method and a device. The gain adjustment method applied to the repeater of an LTE system comprises the steps of acquiring the received power of an LTE cell-specific reference signal; determining the reference amplification gain of the repeater according to the received power of the LTE cell-specific reference signal; according to the determined reference amplification gain of the repeater, adjusting the uplink amplification gain and the downlink amplification gain of the repeater. The received power of the LTE cell-specific reference signal can reflect the link loss information between a base station and the repeater, independent of the load condition of the base station. Therefore, the problem in the prior art that that the improper adjustment of the amplification gain as a result of the load variation of the base station or the low transmission power of the base station causes the relatively large uplink interference can be solved. As a result, the amplification gain of the repeater can be accurately adjusted. Moreover, the material cost is not increased at all, and the performance of the repeater is optimized.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a gain adjustment method and device. Background technique [0002] Since the wireless signal attenuates with the increase of the propagation distance, the wireless signal of the cell edge user and the user in the blind area is weak and the performance is poor. In order to solve the problem of weak coverage and deep coverage, repeaters are widely used in the network to improve coverage. [0003] Among them, the wireless repeater (Repeater) is a kind of same-frequency repeater station that directly amplifies mobile communication signals. It does not change the frequency of the original signal, nor does it perform any processing on the information carried by the signal. Its signal processing process is only 1 hop, such as figure 1 , figure 2 shown. [0004] As a product for coverage extension and blind filling, wireless repeaters generally have a large gain (abo...

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Application Information

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IPC IPC(8): H04W52/52
Inventor 付吉祥王大鹏闫渊王军
Owner CHINA MOBILE COMM GRP CO LTD
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