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A loopback detection method, bbu, rru and optical access network system

A loopback detection and network system technology, applied in the field of optical communication, can solve the problems of long time and high labor cost

Active Publication Date: 2019-01-11
RAISECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of realizing the remote loopback at the RRU of the remote station is to send personnel to the remote station, and realize the signal remote loopback manually on site. This method takes a long time and has high labor costs.

Method used

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  • A loopback detection method, bbu, rru and optical access network system
  • A loopback detection method, bbu, rru and optical access network system
  • A loopback detection method, bbu, rru and optical access network system

Examples

Experimental program
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Embodiment 1

[0142] As shown in Figure 2(a), this embodiment provides a loopback detection method, which is applied to an optical access network system including a baseband processing unit BBU and at least one remote radio unit RRU, including the following steps:

[0143] Step S200, the BBU sends a loopback detection signal generated according to the first control strategy to the RRU to be loopback detection;

[0144] Step S201, after receiving the loopback detection signal, the RRU to be subjected to loopback detection sends a loopback response signal generated according to the second control strategy to the BBU;

[0145] Step S202, after the BBU receives the loopback response signal, it sends loopback test data to the RRU to be tested for loopback;

[0146] Step S203, the RRU to be subjected to loopback detection loops back the loopback test data to the BBU;

[0147] Step S204, the BBU judges whether the received loopback test data is normal.

[0148] As shown in Figure 2(b), after the...

Embodiment 2

[0176] Such as Figure 4 As shown, this embodiment provides an optical access network system, which is characterized in that it includes a baseband processing unit BBU and at least one remote radio unit RRU;

[0177] The BBU is configured to send a loopback detection signal generated according to the first control strategy to the RRU in the system to be subjected to loopback detection; the synchronization state judgment end of the BBU receives the loopback detection signal to be performed After the loopback response signal sent by the RRU, send loopback test data to the RRU to be detected for loopback; judge whether the loopback test data of the RRU loopback for loopback detection to be detected is normal;

[0178] The RRU to be subjected to loopback detection is used to send the loopback detection signal generated according to the second control strategy to the BBU after the synchronous state judgment end of the RRU to be subjected to loopback detection receives the loopback ...

Embodiment 3

[0204] As shown in FIG. 7(a), this embodiment provides a loopback detection method, which is applied to a baseband processing unit BBU, and includes the following steps:

[0205] Step S700, sending a loopback detection signal generated according to the first control strategy to the RRU to be subjected to loopback detection;

[0206] Step S701, after determining that the loopback response signal sent by the RRU to be tested for loopback is received, send loopback test data to the RRU to be tested for loopback; wherein the loopback response signal is the a signal generated by the RRU according to the second control strategy;

[0207] Step S702, judging whether the received loopback test data is normal.

[0208] Optionally, as shown in Figure 7(b), the method may also include:

[0209] Step S703, sending a de-loopback signal generated according to the third control strategy to the RRU to be subjected to loopback detection;

[0210] Step S704, after determining that the de-loop...

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Abstract

The invention discloses a loopback detection method. The loopback detection method is applied to an optical access network system comprising an RRU (Base Band Unit) and at least one RRU (Radio Remote Unit), and comprises the following steps: the BBU sends a loopback detection signal generated according to a first control strategy to the RRU on which a loopback detection is to be performed; the RRU on which a loopback detection is to be performed, after receiving the loopback detection signal, sends a loopback answering signal generated according to a second control strategy to the BBU; the BBU after receiving the loopback answering signal sends loopback test data to the RRUon which a loopback detection is to be performed; the RRU on which a loopback detection is to be performed loops the loopback test data back to the BBU; and the BBU judges whether the received loopback test data is normal. According to the loopback detection method disclosed by the invention, a loopback detection state is entered without needing a worker to manually operate the RRU at a remote terminal, and the remote terminal loopback detection can be carried out conveniently in the network connection and fault maintenance process. The invention further discloses the BBU, the RRU and the optical access network system.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a loopback detection method, a BBU, an RRU and an optical access network system. Background technique [0002] As an optical access network system, distributed base stations are widely used in mobile communication networks because of their advantages such as low cost, strong environmental adaptability, and convenient engineering construction. The core concept of the distributed base station structure is to separate the base band processing unit (BBU, Base Band Unit) of the traditional macro base station from the remote radio unit (RRU, Radio Remote Unit), and the two are connected through optical fibers. During network deployment, the baseband processing unit BBU, core network control equipment, and wireless network control equipment are concentrated in the main station of the computer room, and connected to the RRU deployed on the remote station through optical fib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/077H04B10/25H04Q11/00
CPCH04B10/0771H04B10/2589H04B10/25891H04Q11/0067
Inventor 秦东彭肖
Owner RAISECOM TECH
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