CN202602637U

CN202602637U - Single fiber star type remote radio unit (RRU) monitoring transmission device

Info

Publication number: CN202602637U
Application number: CN 201220279764
Authority: CN
Inventors: 马卿; 汪少军
Original assignee: Nanjing Taitong S & T Co Ltd
Current assignee: NANJING TICOM TECH CO., LTD.
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2012-12-12
Anticipated expiration: 2022-06-14

Abstract

The utility model discloses a single fiber star type remote radio unit (RRU) monitoring transmission device. The device comprises base band units (BBU) which are connected with a plurality of RRUs in a single fiber star mode, a transceiving terminal of each RRU is connected with a corresponding RRU optical module through a wavelength division multiplexing (WDM) component, the WDM devices are arranged on the BBUs, the BBUs are connected with the RRUs and corresponding BBU optical modules through the WDM devices, the BBU optical modules are connected with a monitoring center through a transmission network, BBU optical module transceiving lines and RRU optical module transceiving lines are multiplexed on optical fibers in an add-drop mode through the WDM devices, and the rear portion of each RRU optical module is connected with a moving ring monitoring device through a moving ring monitoring interface. The single fiber star type RRU monitoring transmission device has the advantages that the optical add-drop multiplexing devices and the optical modules are utilized, the cost is low, and the implementing mode is simple and reliable.

Description

The star-like RRU monitoring of a kind of single fiber transmitting device

Technical field

The utility model relates to a kind of supervising device, specifically is a kind of RRU supervising device.

Background technology

3G network uses the distributed base station framework in a large number; RRU (Radio Remote Unit; Radio frequency remoto module) and BBU (Building Base band Unit; Baseband processing unit) need connect with optical fiber between, its interface is based on open C PRI or IR interface, can stably be connected with mainstream vendor's equipment.BBU can be installed in suitable machine room position, and RRU is installed in antenna end, like this, the part of former base station module is separated, and through BBU is separated with RRU, can loaded down with trivial details maintenance work be simplified to the BBU end.A BBU can support a plurality of RRU, has both saved the space, reduces that again cost being set, and improves networking efficient.Adopt BBU+RRU multichannel scheme, the indoor covering that can solve large stadium well.At present, the BBU machine room more complete monitoring means arranged, the RRU monitoring is blank basically; Three kinds of typical networking modes are arranged between BBU and the RRU; Star-like, chain and tree-like, present technique scheme are to monitor the solution of transmission to the RRU of tree-like single fiber networking plan.

The utility model content

The utility model technical problem to be solved provides a kind of simple, and the star-like RRU of single fiber that is prone to realize monitors transmitting device, and this device does not influence telecommunication service in transmitting monitor data carries out.

The star-like RRU monitoring of a kind of single fiber transmitting device; Comprise the BBU that is connected with some RRU with the star-like mode of single fiber, the sending and receiving end of each RRU is respectively through WDM WDM (WDM, a Wavelength Division Multiplexing; Wavelength division multiplexing) device connects RRU optical module separately; The WDM device is set on said BBU, and BBU connects RRU and the BBU optical module of self through the WDM device, and the BBU optical module links to each other with Surveillance center through transmission network; BBU optical module transmitting-receiving circuit and RRU optical module transmitting-receiving circuit through WDM device add drop multiplex to optical fiber, at each RRU optical module after rotating ring watch-dog of rotating ring monitor-interface connection.

In the utility model; Optical fiber is transferred to the BBU side with monitor message; The BBU side is come out according to the different wave length add drop multiplex to RRU sidelight ripple through the WDM device; Change into the reception and the transmission of the Ethernet interface of standard through optical module, through private communication transmission equipment (Ethernet interface of standard is provided) monitor message of RRU is transferred to Surveillance center then.

The beneficial effect of the utility model:

1, the present technique scheme realizes with single fiber, adopts OADM device and optical module, and it is low to have a cost, the advantage that implementation is simple and reliable.

2, BBU side data convergence.

3, the scheme engineering construction is simple, does not interrupt telecommunication service basically.

Description of drawings

Fig. 1 is the structured flowchart of the utility model.

Embodiment

As shown in Figure 1; The star-like RRU monitoring of a kind of single fiber of the utility model transmitting device comprises the BBU that is connected with some RRU with the star-like mode of single fiber, and each RRU connects RRU optical module separately through its WDM device; The WDM device is set on BBU; BBU connects RRU and the BBU optical module of self through the WDM device, with BBU optical module transmitting-receiving circuit and RRU optical module transmitting-receiving circuit add drop multiplex to optical fiber, at each RRU optical module after rotating ring watch-dog of rotating ring monitor-interface connection.The utility model adopts the WDM device in the BBU side; Optical module is received and dispatched circuit and BBU transmitting-receiving circuit add drop multiplex to optical fiber; Be sent to far-end through optical fiber, at far-end optical module received and dispatched circuit and BBU transmitting-receiving link tester and cross the WDM device isolation and come out, be respectively applied for RRU and corresponding optical module; After converting the mimicry network interface to, insert the rotating ring watch-dog.The BBU side restrains the monitor message that star-like RRU sends through Ethernet switch, delivers to Surveillance center through transmission network then.

The concrete application approach of the utility model is a lot; The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement, these improve the protection range that also should be regarded as the utility model.

Claims

1. the star-like RRU of single fiber monitors transmitting device; Comprise the BBU that is connected with some RRU with the star-like mode of single fiber; It is characterized in that the sending and receiving end of each RRU connects RRU optical module separately through a WDM device respectively, and the WDM device is set on said BBU; BBU connects RRU and the BBU optical module of self through the WDM device; The BBU optical module links to each other with Surveillance center through transmission network, BBU optical module transmitting-receiving circuit and RRU optical module transmitting-receiving circuit through WDM device add drop multiplex to optical fiber, at each RRU optical module after rotating ring watch-dog of rotating ring monitor-interface connection.