JP2017188740A - Radio base station device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of work steps up to restoration in the case where disconnection occurs in an optical cable between REC and RE of a radio base station device and avoid wasteful operation on the REC side when there are sectors that cannot be operated.SOLUTION: In the radio base station device including an RE for modulating and demodulating radio waves and an REC for controlling the RE, in which the REC and the RE are connected by an optical cable, the REC can perform an optical pulse test on the optical cable, and switch the operation mode to a power saving mode according to the result of the optical pulse test.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a radio base station apparatus.

  In a radio base station apparatus including a radio apparatus (RE: Radio Equipment) that performs modulation / demodulation of radio waves and a radio apparatus controller (REC: Radio Equipment Controller) that controls the radio apparatus, an optical cable is provided between the REC and the RE. Connected by. In general, an optical pulse tester is used for detecting a disconnection portion of an optical cable, as shown in Patent Documents 1 and 2, for example.

Japanese Patent Laid-Open No. 10-051401 JP 2004-228813 A

  However, when a disconnection occurs in the optical cable between the REC and RE of the radio base station apparatus, in order to investigate using the optical pulse tester, it is necessary to connect the optical pulse tester to the optical cable. It was necessary to go to the place where the station equipment was installed. For this reason, the work man-hours until the restoration have increased.

  In addition, when the optical cable between REC and RE is disconnected, it is desirable to save power in the base station apparatus until recovery until the sector becomes inoperable. There is no power saving considering optical cable disconnection.

  The present invention solves such problems, reduces the work process until recovery when an optical cable is disconnected between REC and RE, and eliminates wasteful operation on the REC side when there are sectors that cannot be operated. An object of the present invention is to provide a radio base station apparatus that can be avoided.

  The radio base station apparatus of the present invention includes an RE that modulates and demodulates radio waves and a REC that controls the RE, and the REC and the RE are connected by an optical cable. The REC performs an optical pulse test on the optical cable. It has an optical pulse test function unit for performing, and a control means for switching the operation mode to the power saving mode according to the result of the optical pulse test.

  According to the present invention, when the optical cable is disconnected between the REC and the RE, it is possible to reduce the work process until the restoration and to avoid wasteful operation on the REC side when there is a sector that cannot be operated. can get.

It is a block block diagram which shows the radio base station apparatus of one Embodiment of this invention with the operation system which is the high-order apparatus. FIG. 2 is a block configuration diagram showing details of a REC in the radio base station apparatus shown in FIG. 1. It is a figure which shows the operation | movement flow of an optical terminal part function part, a control part, and an operation system.

  FIG. 1 is a block configuration diagram showing a radio base station apparatus 1 according to an embodiment of the present invention, together with an operation system 2 that is a higher-level apparatus. The radio base station apparatus 1 includes an RE 11 that performs modulation / demodulation of radio waves, and a REC 12 that controls the RE 11. The REC 12 and the RE 11 are connected by the optical cable 13 directly or via one or more relay points.

  FIG. 2 is a block configuration diagram showing details of the REC 12 in the radio base station apparatus 1 shown in FIG. The REC 12 can be connected to a plurality of REs 11 and includes a plurality (two in the figure) of optical termination function units 21 that terminate the optical cable 13 connected to each RE 11. The REC 12 also includes a control unit 22 that controls the optical termination function unit 21 under the control of the operation system 2. An optical pulse test function unit 23 that performs an optical pulse test on the optical cable 13 is provided in each of the optical termination function units 21. The control unit 22 can switch the operation mode to the power saving mode based on the result of the optical pulse test.

  Here, it is assumed that a disconnection occurs between two relay points A and B of the optical cable 13 shown in FIG. At this time, the optical pulse test function unit 23 provided in the optical termination function unit 21 in the REC 12 performs an optical pulse test in order to investigate the disconnection location. The result of the optical pulse test is notified to the operation system 2 from the control unit 22 in the REC 12. Since the disconnection location can be confirmed by the operation system 2, it is not necessary for the operator to go to the installation location of the REC 12 for the optical pulse test, and the recovery time of the disconnection can be shortened.

  FIG. 3 shows an operation flow of the optical terminal unit function unit 21, the control unit 22, and the operation system 2. The link termination between the REC 12 and the RE 11 is detected by the optical termination function unit 21 (step S1). When the link disconnection factor detected by the optical termination function unit 21 is between REC12 and RE11, the optical termination function unit 21 operates the pulse test function unit 23 to perform a pulse test (step S2). The result of the pulse test is notified from the optical termination function unit 21 to the operation system 2 via the control unit 22 (step S3). After notifying the operation system 2 of the result of the pulse test, the control unit 22 performs operation stop control of the optical termination function unit 21 in which the link break has occurred as a transition to the power saving mode (step (step S5)). The function unit 21 stops operating (step S6) After the disconnection of the optical cable 13 is restored (step S7), the operation system 2 instructs the control unit 22 to resume the operation of the optical termination function unit 21 (step S8). The control unit 22 performs operation resumption control on the optical termination function unit 21 (step S10).

  Thus, in this embodiment, since the REC 12 autonomously performs the pulse test, it is not necessary for the operator to go to the installation location of the REC 12 to perform the optical pulse test. This has the effect of reducing work man-hours and shortening the recovery time of the disconnection location. Moreover, since the operation | movement of the applicable optical termination function part 21 is stopped between the disconnection generation | occurrence | production of the optical cable 13, and recovery, there exists a power saving effect.

1 radio base station apparatus 2 operation system 11 RE (radio apparatus)
12 REC (Radio Equipment Control Equipment)
13 Optical Cable 21 Optical Termination Function Unit 22 Control Unit 23 Optical Pulse Test Function Unit

Claims (2)

A wireless device for modulating / demodulating radio waves;
A wireless device control device for controlling the wireless device,
The wireless device control device and the wireless device are connected by an optical cable,
The radio apparatus controller includes an optical pulse test function unit that performs an optical pulse test on an optical cable, and a control unit that switches an operation mode to a power saving mode based on a result of the optical pulse test. The radio base station apparatus according to claim 1,
The wireless device control device includes an optical termination function unit that terminates an optical cable, and a control unit that controls the optical termination function unit by control of an upper operation system,
The optical pulse test function unit is provided in the optical termination function unit,
The said control part sets the said optical termination function part to a power saving mode as said control means. The radio base station apparatus characterized by the above-mentioned.

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