WO2011038604A1

WO2011038604A1 - Fault information processing method, apparatus and system

Info

Publication number: WO2011038604A1
Application number: PCT/CN2010/074740
Authority: WO
Inventors: 罗军; 王飞
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-29
Filing date: 2010-06-29
Publication date: 2011-04-07
Also published as: CN101662791A

Abstract

A fault information processing method, apparatus and system is provided by the present invention. A Radio remote unit(RRU) provided comprises: a logic control module, set to receive the fault reset instruction, to determine the type of the fault reset instruction and to obtain the corresponding type information of the fault reset instruction; a storage module, set to save the type information of the fault reset instruction; and a fault information sending module, set to perform the reset after the storage module saving the type information of the fault reset instruction, and to send the type information of the fault reset instruction to the building base-band unit (BBU) after the reset. With the invention, the anomaly or fault of the RRU can be found in time, the problem that the anomaly of network is unable to find effectively by the fault information is solved, and the network maintenance efficiency is improved.

Description

Fault information processing method, device and system

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a fault information processing method, apparatus, and system. Background technique

3G (3rd Generation Mobile Communication Technology) is a next-generation mobile communication system that combines wireless communication with multimedia communication such as the Internet. 3G can handle a variety of media formats such as images, music, and video streams, providing a variety of information services including web browsing, teleconferencing, and e-commerce. In order to provide these services, the wireless network must be able to support different data transmission speeds, that is, to support at least 2 Mbps (megabytes per second / 84 kbps (kilobytes per second)) in indoor, outdoor, and driving environments. 144 kbps transmission speed.

The 3G network uses a large number of distributed base station architectures, RRU (Radio Remote Unit) and BBU (Building Baseband Unit). The optical fiber is transmitted between the BBU and the RRU, and the RRU is connected to the antenna through a coaxial cable and a power splitter (coupler), that is, the trunk uses the optical fiber, and the branch uses the coaxial cable. Since the loss of the signal transmitted through the optical fiber is small, the overall loss of the system is reduced, thereby reducing the dependence on the kilowire amplifier. In addition to being connected to the BBU, the RRU can also be used as a remote module of the macro base station, which has a small size and a weight. Light, easy to install, easy to meet the wireless coverage requirements of cities, suburbs, rural areas, highways, railways, etc.

In the downlink direction, the optical fiber is directly connected to the RRU from the BBU, and the baseband digital signal is transmitted between the BBU and the RRU, so that the base station can control a certain user's signal to be transmitted from the designated RRU channel, which can greatly reduce the other channels of the cell. User interference; In the uplink direction, the user's mobile phone signal is received by the nearest channel and then transmitted from the channel to the base station via the optical fiber, which can greatly reduce the interference between users on different channels.

The RRU needs to be reset when the RRU is powered on the board, or when the RRU is performing status monitoring, information collection, and fault diagnosis. The reset of the RRU includes: hardware power-on, press Key reset, watchdog reset, software reset, logic reset several types. Under normal circumstances, the RRU can be reset by the correct operation in the background. However, due to the special working conditions of the RU, the outdoor RF is far away and the environment is harsh. In these cases, the RRU may work abnormally. Causes the RRU system to reset.

In the process of resetting the above RRU due to abnormal operation, the following problems exist:

After the RRU is reset, the abnormal information that causes the R U reset is also cleared. For network maintenance personnel, this part of the abnormal information cannot be obtained. It is difficult to find this abnormality in time, which poses a hidden danger for more network failures. Summary of the invention

The present invention provides a fault information processing method, apparatus and system, which solves the problem that the fault information cannot be effectively utilized to discover network anomalies. specifically,

The present invention provides a fault information processing method, including:

The radio remote module (RRU) receives a fault reset command, and determines the type of the fault reset command;

The RRU stores type information of the fault reset instruction;

The RRU performs a reset and transmits type information of the fault reset instruction to a baseband processing unit (BBU) after the reset is completed.

Preferably, the fault information processing method further includes:

At system initialization, the RRU associates each type of fault reset instruction with a different port.

Preferably, the step of determining, by the RRU, the type of the fault reset instruction comprises: the RRU acquiring type information of a fault reset instruction associated with the port according to the port that receives the fault reset instruction.

The invention also provides a radio remote module (RRU), comprising:

a logic control module, configured to receive a fault reset command, determine a type of the fault reset command, and obtain corresponding type information of the fault reset command; a storage module, configured to store type information of the fault reset instruction;

The fault information sending module is configured to perform a reset after the storage module stores the type information of the fault reset command, and send the type information of the fault reset command to the baseband processing unit (BBU) after the resetting is completed.

Preferably, the foregoing RRU further includes:

The configuration module is set to associate each type of fault reset instruction with a different port when the system is initialized.

Preferably, the logic control module is an electrically programmable logic device (EPLD).

The invention also provides a fault information processing system, comprising a radio remote module (RRU) and a baseband processing unit (BBU);

The RRU is configured to receive a fault reset command, determine a type of the fault reset command, acquire corresponding type information of the fault reset command, store type information of the fault reset command, perform a reset, and after the reset is completed Sending, to the BBU, type information of the fault reset instruction;

The BBU is configured to receive type information of a fault reset command sent by the RRU, and report the information to an operation control platform.

Preferably, the RRU is further configured to associate each type of fault reset command with a different port when the system is initialized.

The present invention provides a method, a device and a system for processing fault information. When an abnormality or failure of the RRU is required to perform a system reset, the type of the fault reset command is first determined, and type information and storage type information of the type of the fault reset command are obtained. After the RRU resets and powers up, the type information of the fault reset command is sent to the BBU, and the BBU reports the type information of the fault reset command to the operation control platform, so that the abnormality or fault of the RRU can be found in time, and the fault cannot be solved. Effectively use fault information to discover network anomalies and improve network maintenance efficiency. BRIEF abstract

FIG. 1 is a flowchart of a fault processing method according to an embodiment of the present invention;

2 is a schematic structural diagram of an application scenario according to an embodiment of the present invention; 3 is a schematic diagram of state transition of the reset information recording and control module 201 of FIG. 2; FIG. 4 is a schematic structural diagram of an RU according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an RRU according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a fault information processing system according to an embodiment of the present invention. Preferred embodiment of the invention

In order to solve the problem that the network abnormality cannot be effectively utilized by using the fault information, the embodiment of the present invention provides a fault information processing method.

In order to better explain the embodiment of the present invention, the type and judgment standard of the fault reset command will be first introduced.

The RRU reset types include logic reset, software reset, watchdog reset, button reset, power-down/power-on reset.

The logic reset is to force reset R U through the logic reset when the CPU of the RRU runs abnormally. When the logical processing module of the RRU solves the reset signal issued by the logic processing module of the BBU through the underlying logic, a logic reset is required.

The software reset is a normal reset command issued through the background when the RRU is working normally. When the RRU's CPU decodes the BBU's CPU and the reset signal is valid, the software reset is executed.

The watchdog overflow reset is a reset that occurs when the CPU dies. The watchdog, also known as the watchdog timer, is a timer circuit that generally has an input, called the dog or service the dog, a RST that outputs the CPU to the RRU ( Reset) pin, when the RRU is working normally, output a signal to the dog end every other time. If the dog is not fed for more than the specified time, the watchdog timer will give a reset signal to the RRU to reset the RRU. RRU crashes. When the program running by the CPU of the RRU enters an endless loop, the watchdog overflow reset is valid and a watchdog overflow reset is required.

Key reset and power-down / power-on reset are resets that are performed when the power-on reset or key reset is active, usually by manual operation.

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The application environment of the embodiment of the present invention is as shown in FIG. 1 , and includes a reset information recording and control module 101 , a watchdog module 102 , and a CPU 103 ; wherein the signal input and reset information recording and control modules of different types of fault reset commands are The different ports of 201 are associated, the reset information recording and control module 101 can be an EPLD (Electrically Programmable Logic Device), and the reset information recording and control module 101 has a plurality of ports, that is, input signal pins.

The reset information recording and control module 101 has four working states of 00, 01, 10, and 11. After receiving the reset command, the fault information storage and the RRU reset operation can be completed through the conversion of the four states. The transition relationship of the four states is shown in Figure 2. The following four states are described below: State 00: After the RRU is powered on, the reset information recording and control module 101 enters state 00, which is the default state, and the preliminary record. Reset cause, and keep 1 clock cycle; every 1 clock cycle, reset information record and control module 101 will detect whether a reset command is received, RRU RST during normal operation (reset status indication, high level and low power) Level two states, high level means normal operation, low level means that the level of receiving the reset command is high level, after receiving the reset command, the level of RST will become low level; if it is detected When RST changes from high level to low level (ie, reset is valid), the state jumps from 01 to 01; if RST is high at this time, the reset information recording and control module 101 jumps from state 00 to state 11;

State 01: After RST transitions to low level, it enters this state and remains for 1 clock cycle. After 1 clock cycle, the state jumps from 01 to 10;

State 10: RST is low, after one clock cycle, the reset information recording and control module 101 detects RST. If the RST remains low at this time, it continues to maintain 10 states and 1 clock cycle; When RST goes high, it enters state 11;

State 11: During RST high, after one clock cycle, if RST remains high at this time, it will continue to hold 11 state for 1 clock cycle; if RST goes low at this time, enter state 00 ; State 11 is the state during normal operation.

When the state enters 01, the fault information (ie, the type information of the reset command) is recorded, and after the delay of 4 clock cycles, the reset command is sent out, and is sent to the reset pin of the CPU 103 through the watchdog module 102 to be reset. .

The embodiment of the present invention provides a fault information processing method, which reports the type information of the fault reset command to the BBU when the RRU is reset and resets, and then reports the fault reset command information to the operation control platform by the BBU, thereby Real-time reporting of fault anomalies, using the party The process of completing the fault information processing is as shown in FIG. 3, including:

Step 301: When the system is initialized, the RRU associates each type of fault reset instruction with a different port;

In this step, at the time of system initialization, an association is established between different types of fault reset instructions and different ports of the reset information record and control module 101, and the association relationship is stored.

Step 302: The RRU receives the fault reset command, and determines the type of the fault reset command. When the bottom logic of the RRU parses the error, a fault reset command is issued, and after receiving the fault reset command, the CPU of the RRU is configured according to step 301. The relationship between the type of the fault reset instruction and the port determines the type of the fault reset command and obtains the type information of the fault reset command.

Step 303: The RRU stores type information of the fault reset instruction.

In this step, the RRU stores the type information of the fault reset command acquired in step 302 in the storage device, and the storage device may be a custom internal register of the EPLD, and the information in the storage device is not cleared by the reset of the RRU.

Step 304: The RRU performs a reset, and sends the type information of the fault reset instruction to the baseband processing unit (BBU) after the resetting is completed;

In this step, the RRU performs a reset according to the fault reset command received in step 302, and after resetting the power-on, first detects whether the type information of the fault reset command is stored in the storage device, and if so, the type of the fault reset command. The information is reported to the BBU, and the type information of the fault reset command stored in the storage device is cleared.

Optionally, the RRU may also store the type information of the fault reset command in the black box of the BBU (the black box is the state information storage device in the BBU) before reporting the type information of the fault reset command to the BBU for permanent backup.

An embodiment of the present invention provides a method for processing fault information. When an abnormality or failure of the RRU is required to perform a system reset, the type of the fault reset instruction is first determined, and type information of the type of the fault reset command is acquired, and the type information is stored. After the RRU resets and powers up, the type information of the fault reset command is sent to the BBU, and the BBU reports the type information of the fault reset command to the operation control platform, so that the abnormality or fault of the RRU can be found in time, and the problem cannot be solved effectively. The problem of network anomalies is discovered by using fault information, and the network maintenance efficiency is improved.

An embodiment of the present invention further provides an RRU, as shown in FIG. 4, including: The logic control module 401 is configured to receive a fault reset command, determine a type of the fault reset command, and obtain corresponding type information of the fault reset command;

The storage module 402 is configured to store type information of the fault reset instruction;

The fault information sending module 403 is configured to perform a reset after the storage module 402 stores the type information of the fault reset command, and send the type information of the fault reset command to the BBU after the resetting is completed.

As shown in FIG. 5, the foregoing RRU may further include:

The configuration module 404 is configured to associate each type of fault reset command with a different port when the system is initialized.

Preferably, the logic control module 401 is an EPLD, and different reset instructions correspond to different input signal pins of the EPLD, and the type of the reset instruction is determined by determining a pin that receives the reset instruction.

An embodiment of the present invention further provides a fault information processing system. As shown in FIG. 6, the system includes an RRU 601 and a BBU 602.

The RRU 601 is configured to receive a fault reset command, determine a type of the fault reset command, obtain corresponding type information of the fault reset command, store type information of the fault reset command, perform a reset, and complete the reset Sending the type information of the fault reset instruction to the BBU 602;

The BBU 602 is configured to receive type information of the fault reset command sent by the RRU 601, and report the information to the operation control platform.

Preferably, the RRU 601 is further configured to associate each type of fault reset instruction with a different port when the system is initialized.

The RRU and the fault information processing system may be combined with the fault information processing method provided by the embodiment of the present invention. When an abnormality or failure of the RRU is required to perform a system reset, the type of the fault reset command is first determined, and the type of fault reset is obtained. The type information of the instruction, the storage type information, after the RRU is reset and the power is normally operated, the type information of the fault reset instruction is sent to the BBU, and the BBU reports the type information of the fault reset instruction to the operation control platform, so that the RRU is abnormal or The fault can be discovered in time, solves the problem that the fault information cannot be effectively utilized to discover the network abnormality, and improves the network maintenance efficiency.

One of ordinary skill in the art will appreciate that all or part of the steps in the above methods may be passed through the program. The instructions are related to hardware completion, and the program can be stored in a computer readable storage medium such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

The fault information processing method, device and system provided by the present invention first determine the type of the fault reset command when the RRU is abnormal or faulty, and obtain the type information of the type of the fault reset command, the storage type information, in the RRU. After the power-on is reset, the type information of the fault reset command is sent to the BBU, and the BBU reports the type information of the fault reset command to the operation control platform, so that the abnormality or fault of the RRU can be detected in time, and the problem cannot be effectively utilized. The fault information discovers the problem of network anomalies and improves the network maintenance efficiency.

Claims

Claim

1. A method for processing fault information, comprising:

The RRU stores type information of the fault reset instruction;

2. The fault information processing method according to claim 1, further comprising:

The fault information processing method according to claim 1 or 2, wherein the step of determining, by the RRU, the type of the fault reset command comprises:

The RRU acquires type information of a fault reset instruction associated with the port according to the port receiving the fault reset instruction.

4. A radio remote module (RRU), comprising:

a logic control module, configured to receive a fault reset command, determine a type of the fault reset command, and obtain corresponding type information of the fault reset command;

a storage module, configured to store type information of the fault reset instruction;

5. The RRU of claim 4, further comprising:

6. The RRU of claim 4, wherein the logic control module is an electrically programmable logic device (EPLD).

7. A fault information processing system, including a radio remote module (RRU) and a baseband processing unit ( BBU ) ;

8. The fault information processing system according to claim 7, wherein

The RRU is further configured to associate each type of fault reset instruction with a different port at system initialization.