RRU adaptive power adjustment method and device thereof

A technology of power adjustment and self-adaptation, applied in the field of communication

Active Publication Date: 2015-09-16
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0006] The purpose of the present invention is to provide a RRU adaptive power adjustment method and device to solve the problem of how the RRU adaptively adjusts the transmission signal power to make the measurement of DPD / RPD / OPD accurate when the transmission signal power between the BBU and the RRU is fixed

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  • RRU adaptive power adjustment method and device thereof
  • RRU adaptive power adjustment method and device thereof
  • RRU adaptive power adjustment method and device thereof

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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041]Since the signal transmission power of the BBU and RRU in the prior art is variable, the power of the signal transmission by the BBU is adjusted in real time by the physical layer according to the service characteristics, which makes the IR interface fluctuate greatly, which is not conducive to the fixed system interface. If the power of the IR interface is fixed, control signaling is sent through the BBU during power adjustment. Since the...

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Abstract

The invention discloses an RRU adaptive power adjustment method and a device thereof to solve the problem of how to adaptively adjust sending signal power by RRU such that the measurement of DPD/RPD/OPD is accurate when the power of transmission signal between a BBU and an RRU is fixed. The method comprises the following steps: the RRU periodically receiving the signal and first power control information transmitted by the BBU, and whether a power measurement task exists or not currently is detected; if the power measurement task does not exist, the power adjustment of the signal received from the BBU is carried out according to the first power control information; if the power measurement task exists, programmable gain control PGC related parameter is set as a default value, the current power measurement is executed continuously until the measurement of current power is completed, thus when the fixed gain between the BBU and the RRU is sent, through the control of PGC, the processing of the DPD/OPD/RPD is not affected by gain change, and the measurement of the DPD/OPD/RPD is accurately completed.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for RRU adaptive power adjustment. Background technique [0002] The distributed base station equipment is mainly divided into two parts: a baseband processing unit (Building Base band Unit, BBU) and a radio remote unit (Radio Remote Unit, RRU). The BBU is the main control module, and the near-end is directly connected to the Radio Network Controller (RNC) or Base Station Controller (BSC) through the transmission equipment. The RRU is the controlled unit and the remote unit. It is connected to the BBU device through an optical fiber or a 2M line, and the baseband optical signal is converted into a radio frequency signal at the remote end to be amplified and transmitted. [0003] In the prior art, the physical layer determines the power of the physical layer signal according to the power of the cell built by the operation and maintenance (Operation Manage, OM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W52/18
CPCH04W24/02H04W52/18
Inventor 熊军李裕国李俊涛郭晴张佳星张山文志刚
Owner DATANG MOBILE COMM EQUIP CO LTD
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