WO2004010614A1

WO2004010614A1 - A transmitting method of optical transmission maintenance information

Info

Publication number: WO2004010614A1
Application number: PCT/CN2003/000547
Authority: WO
Inventors: Ye Jiang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2002-07-18
Filing date: 2003-07-10
Publication date: 2004-01-29
Also published as: CN1204771C; AU2003281604A1; CN1469663A

Abstract

The invention relates to the mobile communication system and the optical transmission communication field. A transmitting method of optical transmission maintenance information, characterized in : adding interface between the optical transmission maintenance information and the base- station data bus, using the optical transmission link between the base-station and the base-station controller, completing to transmit the optical transmission maintenance information between the base-station and the base-station controller. Through the transmitting method in the invention, between the base-station and the base-station controller the data transmission link of the optical transmission equipment maintenance information is established, it will be convenient for the transmission of optical maintenance information, be favorable to the maintenance of the optical transmission network in the base-station and improve the maintenance performance of the base-station.

Description

Transmission method of optical transmission maintenance information

The present invention relates to a mobile communication system and an optical transmission communication system, and in particular, to an interface for adding optical transmission maintenance information and a base station data bus in a base station, and using optical transmission line resources between the base station and a base station controller to complete the optical transmission maintenance information by the base station Transparent transmission function to the base station controller. technical background

In mobile communication systems such as GSM, CDMA, WCDMA, and CDMA2000, there is a data interface for the transmission of voice and signaling between the base station and the base station controller. These interfaces include, but are not limited to, the Abis interface between the base station transceiver station (BTS) and the base station controller (BSC) in the Global Digital Mobile Communication System (GSM), the base station (NodeB) in the Wideband Code Division Multiple Access System (WCDMA), and A lub port between a radio network controller (RNC) and an Abis port between a base transceiver station (BTS) and a base station controller (BSC) in a broadband code division multiple access system (CDMA2000).

In actual use, the base station and the base station controller are often installed in different computer rooms, and the transmission of the data interface between the base station and the base station controller is completed by the transmission system. Since the optical transmission system has the advantages of a large number of transmissions and stable quality, it is very suitable for implementing a transmission network of a base station.

However, if the optical transmission equipment (including optical transmission equipment built in and external to the base station equipment) used by the base station side and the existing optical transmission network equipment are produced by different manufacturers, the network management information of the optical transmission equipment is different, and the existing optical transmission equipment Network management equipment cannot perform maintenance on the optical transmission equipment on the base station side, where maintenance includes changes to the optical transmission networking mode and site IP information. Generally, it is necessary to perform maintenance on the base station-side optical equipment at the near end of the base station, which is very inconvenient to operate; or special transmission equipment to complete the transmission of base station-side optical transmission maintenance information, including inputting and outputting maintenance information to the optical transmission link through a router After the maintenance information is inserted and extracted from the optical transmission link at the remote end, the maintenance station performs maintenance.

This method requires investment in new equipment and increases equipment maintenance workload. As shown in Figure 1, 'Yes Schematic diagram of the maintenance method of the base station side optical transmission equipment when the optical transmission equipment of different manufacturers are currently docked. Summary of the invention

The purpose of the present invention is to use the transmission resources existing in the transmission system between the base station and the base station controller to realize the transmission of maintenance information of the base station side optical transmission equipment between the base station and the base station controller. This facilitates the maintenance of the base station optical transmission network.

The invention is implemented as follows:

A method for transmitting optical transmission maintenance information, which is characterized by:

The interface of the optical transmission maintenance information and the base station data bus is added to the base station, and the optical transmission line between the base station and the base station controller is used to complete the transmission of the optical transmission maintenance information between the base station and the base station controller.

In the method for transmitting optical transmission maintenance information, when the base station sends information, the method includes the following steps: a. Reporting the base station optical transmission unit to the optical transmission maintenance station or the maintenance information of the base station maintenance station to the base station data bus;

b. The base station switching unit is used to exchange the optical transmission maintenance information to the time slot of the data transmission bus between the base station and the base station controller;

c. Use the optical transmission line between the base station and the base station controller to complete the transparent transmission of optical transmission maintenance information between the base station and the base station controller;

d. The base station controller uses the switching unit to extract the optical transmission maintenance information from the transmission bus and sends it to the optical transmission maintenance station or the base station maintenance station to complete the maintenance of the optical transmission network of the base station.

In the transmission method for optical transmission maintenance information, when the base station receives the information, the method includes the following steps: a. The maintenance information sent by the optical transmission maintenance station or the base station maintenance station to the base station optical transmission unit is sent to the base station controller data bus. ;

b. Use the switching unit of the base station controller to exchange the optical transmission maintenance information to the time slot of the data transmission bus between the base station controller and the base station;

C. Use the optical transmission line between the base station controller and the base station to complete the transparent transmission of optical transmission maintenance information between the base station controller and the base station; d. The base station uses the switching unit to extract the optical transmission maintenance information from the transmission bus and sends it to the base station optical transmission unit to complete the maintenance of the optical transmission network of the base station by the optical transmission maintenance station or the base station maintenance station.

The transmission of the maintenance information and data is bidirectional.

The method for transmitting optical transmission maintenance information further includes: after the external data is incorporated into the bus of the base station through the interface unit, the data structure of the external data must be sorted and converted into a data transmission request that meets the data transmission requirements between the base station and the base station controller. format.

In the method for transmitting optical transmission maintenance information, if the base station maintenance station includes the function of optical transmission maintenance, the maintenance information can be sent to the base station maintenance station, and unified maintenance of the base station and the base station optical transmission grid is achieved by a unified network management.

In the method for transmitting optical transmission maintenance information, when the above-mentioned mobile communication system is a global digital mobile communication system, and the above-mentioned base station transceiver station and the base station controller are an Abis interface, the optical transmission maintenance is implemented by using the time slot of the Abis interface. The information is transparently transmitted between the base station and the base station controller, and the optical transmission maintenance station implements maintenance of the optical transmission network.

The time slot bit of the data transmission bus between the existing base station and the base station controller is the idle time slot bit of the system.

The method for transmitting optical transmission maintenance information is characterized in that the interface may be an RS232 or n> 64k data interface.

Through the transmission method of the present invention, a data transmission link for maintenance information of a base station-side optical transmission device is opened between a base station and a base station controller, which can conveniently transmit the maintenance information, thereby facilitating the maintenance of the base station optical transmission network and improving the base station. Maintainability. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a base station side optical transmission maintenance method when optical transmission equipment of different manufacturers are docked in the prior art.

FIG. 2 is a schematic diagram of an implementation process of a base station with a function of transparent transmission of optical transmission maintenance information according to the present invention.

FIG. 3 is an embodiment of the present invention. The global digital mobile communication system has an optical transmission maintenance signal. Schematic diagram of the flow of the function of transmitting and receiving of the base station through the information transmission function. detailed description

The method of the present invention is further described in detail below with reference to the accompanying drawings of the specification.

The invention uses the optical transmission line between the base station and the base station controller to increase the optical transmission maintenance information and the base station data bus interface in the base station to complete the transparent transmission function of the optical transmission maintenance information between the base station and the base station controller.

In order to use the time slot of the data transmission bus between the base station and the base station controller to realize the transmission of the optical transmission maintenance information at the base station side, it is necessary to incorporate the optical transmission maintenance information into the base station data bus. And from the perspective of system resource utilization, the remaining resources of the idle line can be used. This requires adding an interface between the optical transmission maintenance information and the base station data bus in the base station. In general, the amount of data for optical transmission maintenance information is not large, and data interfaces such as RS232 and n x 64k can be considered.

As shown in FIG. 2, when the base station sends information, the method includes the following steps:

1. Enter the optical transmission maintenance information in the interface:

Input the optical transmission maintenance information to the interface set up previously to complete the data input.

2. Use the existing switching unit of the base station to exchange the optical transmission maintenance information into the time slot of the data transmission bus between the existing base station and the base station controller:

To save system resources, you can use the idle time slot of the data transmission bus between the existing base station and the base station controller.

Because the physical interface of the data interface between the base station controller and the base station generally adopts the E1 interface, that is, the primary group interface of 2.048M / bs. In most cases, there is remaining bandwidth, not all of them transmit data, and most of them are blank information. In the existing situation, the remaining bandwidth of the data interface between the base station controller and the base station can be used to complete the transmission of maintenance information, which can save a lot of funds for leasing new transmission resources.

After the external data is included in the base station bus through the interface unit, the data structure of the external data must first be arranged to meet the requirements for data transmission between the base station and the base station controller. Further, the processed external data is exchanged to an idle time slot of a data transmission bus between the existing base station and the base station controller, which can be implemented by using an existing switching unit in the base station.

3. Use the remaining resources of the optical transmission line between the base station and the base station controller to complete the transparent transmission of optical transmission maintenance information between the base station and the base station controller:

The transmission network (including the optical transmission equipment on the base station side and the original optical transmission network) is independent of the base station and the base station controller. The transmission is completed, so that the base station-side optical transmission maintenance information is transparently transmitted between the base station and the base station controller.

4. The base station controller uses the existing switching unit to extract the optical transmission maintenance information from the transmission bus and send it to the optical transmission maintenance station or the base station maintenance station to maintain the optical transmission network of the base station: The base station side optically transmits maintenance information. The base station controller uses the existing switching unit to extract the maintenance information from the transmission bus and send it to the optical transmission maintenance station for maintenance. If the base station maintenance station includes the function of optical transmission maintenance, The maintenance information can be sent to the base station maintenance station, and the unified network management implements the unified maintenance of the base station and the base station optical transmission network.

When the base station receives information, it is actually a symmetrical process with the above-mentioned sending information:

a. Send the maintenance information sent by the optical transmission maintenance station or the base station maintenance station to the base station optical transmission unit to the base station controller data bus;

c. Use the optical transmission line between the base station controller and the base station to complete the transparent transmission of optical transmission maintenance information between the base station controller and the base station;

d. The base station uses the switching unit to extract the optical transmission maintenance information from the transmission bus and sends it to the base station optical transmission unit to complete the maintenance of the optical transmission network of the base station by the optical transmission maintenance station or the base station maintenance station.

The specific explanation is the same as when the base station sends information.

In fact, sending and receiving information on the base station side is a two-way symmetrical process. The transmission of maintenance information and data is two-way. In actual work, it can be performed interactively. As shown in FIG. 3, when the above-mentioned mobile communication system is a global digital mobile communication system, and an Abis interface is provided between a base station transceiver station and a base station controller, the remaining time slots of the Abis interface are used to implement optical transmission maintenance information at the base station and the base station. For transparent transmission between devices, the optical transmission maintenance station implements maintenance of the optical transmission network. The interface between the Abis interface Chinese translation station controller BSC and the base station BTS mainly completes the data transmission between the base station controller BSC and the base station BTS. This includes voice, signaling, and maintenance information. The physical layer of the data format is the E1 interface, that is, the primary group interface of 2.048M / bs.

Let ’s look at a specific example. In the global digital mobile communication system, the method for transmitting optical transmission maintenance information using the present invention includes:

1. Configure the low-to-medium-rate data interface to receive external data:

At present, the Abis interface between the base station transceiver station and the base station controller in the global digital mobile communication system mostly adopts the primary group E1 interface method, and the data rate is 2M. The Abis interface is used to transmit voice channels, signaling channels, and operation and maintenance channels. The amount of data is related to the number of voice channels and signaling channels, that is, the number of carrier frequencies configured by the base transceiver station. Under normal circumstances, the 2M data volume is not occupied, and it can be used for transparent transmission of external data.

Because the remaining resources of the 2M transmission circuit are less, and the data amount of the optical transmission maintenance information at the base station side is lower. So you can configure transmission interfaces like RS232, n 64k and so on.

2. Data format conversion:

The serial data format of RS232 and other data is converted to n x 64k mode, which is beneficial to join the existing transmission data bus.

3. The external data is exchanged to the idle time slot of the data bus through the network chip:

Utilize the existing switching mesh on both sides of the base station transceiver station and the base station controller, such as SD529, to integrate the external data conforming to n X 64k into the transmission bus, and then use the existing transmission resources to achieve transparent transmission of external data.

4. Use a unified base station transceiver management system to maintain the base transceiver station and the optical transmission network:

Combine the maintenance station of the optical transmission equipment supporting the base station with the maintenance station of the base station transceiver station, and use The unified base station transceiver station network management implements maintenance of the base station transceiver station and the optical transmission network.

Through the transmission method of the present invention, a data transmission link for maintenance information of a base station-side optical transmission device is opened between a base station and a base station controller, which can conveniently transmit the maintenance information, thereby facilitating the maintenance of the base station optical transmission network and improving the base station. Maintainability. At the same time, since the remaining resources of the system can be used, there is no impact on the existing transmission, thereby greatly improving the utilization of system resources.

The above descriptions are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or changes within the technical scope disclosed by the present invention. Replacement should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

Claim

1. A transmission method of "" optical transmission maintenance information, which is characterized by:

2. The method for transmitting optical transmission maintenance information according to claim 1, wherein when the base station sends information, the method includes the following steps:

a. Report the maintenance information of the base station optical transmission unit to the optical transmission maintenance station or the base station maintenance station and send it to the base station: according to the bus;

3. The method for transmitting optical transmission maintenance information according to claim 1, wherein when receiving information at the base station side, the method comprises the following steps:

4. The method for transmitting optical transmission maintenance information according to claim 2 or 3, wherein The transmission of maintenance information and data is bidirectional.

5. The method for transmitting optical transmission maintenance information according to claim 4, further comprising: after the external data is incorporated into the bus of the base station through the interface unit, the data structure of the external data must be sorted and converted into conforming to the base station and the The required format for data transmission between base station controllers.

6. The method for transmitting optical transmission maintenance information according to claim 5, characterized in that if the base station maintenance station includes a function of optical transmission maintenance, the maintenance information can be sent to the base station maintenance station, and the unified network management implements the optical transmission of the base station and the base station. Unified maintenance of the transmission network.

7. The method for transmitting optical transmission maintenance information according to claim 5, characterized in that when the mobile communication system is a global digital mobile communication system, and the base station transceiver station and the base station controller are Abis interfaces, use The time slot of the Abis interface realizes the transparent transmission of optical transmission maintenance information between the base station and the base station controller, and the optical transmission maintenance station implements the maintenance of the optical transmission network.

8. The method for transmitting optical transmission maintenance information according to claim 2, 3, 4, 5, 6, or 7, wherein the timeslot bit of the data transmission bus between the existing base station and the base station controller is The free time slot bit of the system.

9. The method for transmitting optical transmission maintenance information according to claim 2, 3, 4, 5, 6, or 7, wherein the interface is an RS232 or n x 64k data interface.