WO2006131059A1

WO2006131059A1 - Backup method and apparatus of wireless accessing device

Info

Publication number: WO2006131059A1
Application number: PCT/CN2006/001189
Authority: WO
Inventors: Tao Yang; Keliang Zhang; Xuyong Wu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-06-08
Filing date: 2006-06-02
Publication date: 2006-12-14
Also published as: CN1878012A

Abstract

A backup method and apparatus of wireless accessing device. The method primarily includes: configuring backup unit for Outdoor Unit(ODU) of wireless accessing device; starting the backup unit instead of the failure ODU when the ODU happens failure. The apparatus primarily includes: IDU module, comprises the working IDU in working state and the backup IDU in idle state; ODU module, comprises the working ODU in transmitting state and the backup ODU in untransmitting state; control module for connecting the IDU module and the ODU module, and configuring the corresponding relation between IDU and ODU, and controlling the starting of backup IDU and backup ODU. Employing the method and apparatus of the present invention can solve backup problem of IDU and ODU in wireless accessing device.

Description

Backup method and device for wireless access device

Technical field

The present invention relates to the field of communications, and in particular, to a backup method and apparatus for a wireless access device.

Background technique

The wireless access devices in the wireless communication system include an IDU (Indoor Unit) and an ODU (Outdoor Unit). In order to improve the reliability of the communication device, the current wireless access device adopts a processing method of backing up the IDU. This approach solves the backup problem of the wireless access device to a certain extent, but does not implement a full backup. In the actual application, when the 0DU fails, the backup ODU cannot be used to replace the faulty ODU, which will affect the reliability of the 0DU device, which will affect the reliability of the entire wireless access device.

In addition, the existing wireless access device used in the WiMAX (World Interoperability for Microwave Access) system is a wireless broadband access device based on IEEE (Institution of Electrical and Electronics Engineers). , Institute of Electrical and Electronics Engineers) 802.16 standard wireless metropolitan area network technology, which is a subset of the series of standards for broadband wireless access technology.

WiMAX's advantages in cost and other aspects make the industry think of WiMAX technology as a technology that breaks the industrial landscape. WiMA will be a technology for revolutionary applications in the future.

Similarly, the implementation of WiMAX wireless devices is generally divided into two parts, IDU and ODU, and the two parts communicate through intermediate frequency or other link modes. In the prior art, the WiMAX device does not have a backup scheme for configuring the IDU and the 0DU. Therefore, in actual applications, when the IDU and the ODU are faulty, the backup IDU and the ODU cannot be used to replace the failed IDU and the ODU, which will affect The reliability of IDU and ODU devices will in turn affect the reliability of WiMAX devices.

Summary of the invention

The present invention provides a method and apparatus for improving the reliability of a wireless access device, which can implement the backup problem of the IDU and the ODU in the wireless access device. According to an aspect of the present invention, a backup method for a wireless access device is provided, including: configuring a backup unit for an outdoor unit of the wireless access device;

When the outdoor unit of the wireless access device fails, the backup unit is enabled to replace the failed outdoor unit.

The method also includes:

Configuring a backup indoor unit for the indoor unit of the wireless access device;

When the indoor unit of the wireless access device fails, the backup indoor unit is enabled to replace the failed indoor unit.

The method also includes:

For the indoor unit and the outdoor unit of the wireless access device, the service data is exchanged between the corresponding indoor unit and the outdoor unit.

The method also includes:

The backup indoor unit is enabled to replace the failed indoor unit, and/or, after the backup outdoor unit is enabled to replace the failed outdoor unit, the correspondence between the outdoor unit and the indoor unit is reconfigured.

The method also includes:

After the indoor unit fails, the reporting unit has an indoor unit failure and sends a notification. After the outdoor unit fails, the reporting unit has an outdoor unit failure and sends a notification.

The wireless access device includes a global interactive microwave access WiMA device.

According to another aspect of the present invention, a wireless access device is provided, including:

The outdoor unit module includes a work outdoor unit in a transmitting state and a backup outdoor unit in a non-emissive state;

The control module is configured to connect the outdoor unit module and the indoor unit of the wireless access device to control startup of the backup outdoor unit.

The device also includes:

Indoor unit module: Includes the working indoor unit in the working state and the backup indoor unit in the standby state.

The working indoor unit and the backup indoor unit, the work outdoor unit, and the backup outdoor unit The switch can be switched between the backup unit, the backup indoor unit, the backup outdoor unit, and the backup outdoor unit.

The outdoor unit module includes a support switching device that supports the work outdoor unit and the backup outdoor unit and enables the work outdoor unit and the backup outdoor unit to be switched.

The mechanical structure of the support switching device employs a mechanical arm or a rotating bracket or a lever or a linear or curved guide or a universal joint.

The working indoor unit and the backup indoor unit in the indoor unit module are inserted as a single board in the indoor unit frame.

The control module includes:

The monitoring processing module is configured to perform status monitoring on the working indoor unit and the working outdoor unit in the transmitting state, and when the working indoor unit or the outdoor unit fails, start the backup indoor unit or the outdoor unit to replace the faulty An indoor unit or an outdoor unit that simultaneously transmits control signals;

The switching processing module is configured to configure a correspondence between the indoor unit and the outdoor unit according to the control signal transmitted by the monitoring processing module, and exchange the indoor unit data to the corresponding outdoor unit according to the configured correspondence.

The monitoring processing module further includes:

The information reporting module is configured to send information to the host when the indoor unit or the outdoor unit fails, and report that the indoor unit or the outdoor unit is faulty and issue a notification.

The switching processing module is a switching interface board for exchanging digital signals.

The exchange processing module is implemented by a microwave relay to exchange analog signals. According to still another aspect of the present invention, a backup device for a wireless access device is provided. The method includes: a monitoring processing module, configured to perform status monitoring on a working outdoor unit in a transmitting state, and when the working outdoor unit fails, start a backup outdoor unit to replace the failed outdoor unit, and simultaneously transmit a control signal;

The switching processing module is configured to exchange data of the backup outdoor unit to the corresponding outdoor unit according to the control signal transmitted by the monitoring processing module.

According to still another aspect of the present invention, a backup device for a wireless access device is provided. The method includes: a monitoring processing module, configured to work indoor unit and in an emission state The working outdoor unit performs state monitoring. When the working indoor unit or the outdoor unit fails, the backup indoor unit or the outdoor unit is activated to replace the failed indoor unit or the outdoor unit, and the control signal is transmitted at the same time;

It can be seen from the technical solution provided by the present invention that the present invention provides a specific implementation method for providing backup for the IDU and the ODU, thereby solving the problem of backup of the IDU and the ODU in the WiMAX or other wireless access device, and improving the IDU and the ODU. The reliability of the device improves the reliability of the entire link of the WiMAX or other wireless access device. The present invention enables the unit of the same sector to be operated without the intervention of the IDU and the backup ODU by providing the IDU and the ODU. Multiple fast switchings can improve the reliability of WiMAX or other wireless access devices under limited cost. The present invention can not interrupt the services of other normal IDUs and ODU units when switching between failed IDUs and ODUs. Ability.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a specific process of a method according to an embodiment of the present invention;

Figure 2 is a detailed structural view of the device of the present invention;

Figure 3 is a detailed structural view of Embodiment 1 of the apparatus of the present invention;

4 is a schematic structural diagram of a switch interface board in FIG. 3;

Figure 5 is a detailed structural view of Embodiment 2 of the apparatus of the present invention;

Fig. 6 is a structural schematic view of the rotary robot arm ODU of Fig. 5.

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method and apparatus for improving the reliability of a wireless access device. The core of the present invention is: Configuring a backup IDU and a backup ODU for an IDU and an ODU in a WiMA or other wireless access device, when an IDU or an ODU When a failure occurs, start the backup IDU or ODU to replace the failed IDU or ODU.

The present invention will be described in detail below with reference to the accompanying drawings. The specific processing flow of the embodiment of the method of the present invention is as shown in FIG. 1 and includes the following steps: Step 1-1: Configure a backup IDU and an ODU for the IDU and the ODU in the wireless access device. The method of the present invention first needs to configure a certain number of backup IDUs and ODUs for working IDUs and ODUs in WiMA or other wireless access devices, wherein the number N of working IDUs and ODUs and the number of backup IDUs and ODUs can be based on actual The situation is set. For example, when N is 4, m can be 2. The working IDU and ODU are in working state, and the backup IDU and ODU are in standby state.

In WiMAX or other wireless access devices, the IDU and the ODU have a corresponding relationship. The services from the network side are processed by the IDU and then switched to the corresponding ODU. For example, if the IDU has 6 units: IDU1, IDU2, IDU3, IDU4, IDU5, and IDU6, IDU5 and IDU6 are backup IDUs. The ODU also has six units: ODU1, ODU2, ODU3, ODU4, ODU5, and ODU6, where ODU5 and ODU6 are backup ODUs, and IDU1 corresponds to ODU1; IDU2 corresponds to ODU2; IDU3 corresponds to ODU3; IDU4 corresponds to ODU4. IDU5 corresponds to ODU5; IDU6 corresponds to ODU6.

The present invention can also perform backup backup only for the ODU of the WiMAX or other wireless access device, and no backup is configured for the IDU. When one ODU is damaged and the IDU is not damaged, the backup ODU can be started to replace the damaged ODU.

Step 1-2: When the IDU or ODU fails, enable the backup IDU or ODU to replace the faulty IDU or ODU.

In the actual application, the working IDU or ODU may be faulty. When the working IDU or ODU fails, the backup IDU or ODU is enabled to replace the faulty IDU or ODU.

For example, we still refer to the case where there are 6 IDUs and ODUs as described above. When IDU1 fails, IDU5 is enabled to replace IDU1. Therefore, IDU5 is in working state and IDU1 is in standby state.

Step 1-3: Reconfigure the correspondence between the IDU and the ODU so that the service data can be smoothly exchanged between the IDU and the ODU.

After the backup IDU or the ODU is enabled to replace the faulty IDU or the ODU, the corresponding relationship between the IDU and the ODU needs to be reconfigured through a certain exchange process in order to enable the service data to be successfully exchanged between the IDU and the ODU.

For example, we still refer to the example described in steps 1-2. After IDU5 is enabled to replace IDU1, The ODU1 corresponding to the original IDU1 is reconfigured to correspond to the IDU5, and the ODU5 corresponding to the original IDU5 is reconfigured to correspond to the IDU1.

Step 1-4: The IDU or ODU is faulty on the reporting host.

After the operation of enabling the backup IDU or ODU to replace the faulty IDU or ODU and reconfiguring the IDU and the ODU, the reported host has an IDU or ODU failure, and the maintenance personnel are notified to replace the failed IDU or ODU.

So far, the specific processing flow of the method in the embodiment of the present invention ends.

The specific structure of the wireless access device of the present invention is as shown in FIG. 2, and includes the following modules: IDU module 210: includes a working IDU module 211 and a backup IDU module 212. The IDU in the working IDU module 211 is used to process the service data from the network side, and the processed data is transmitted to the control module 220. When all the working IDUs are working normally, the IDU in the backup IDU module 212 is in the standby state. When the IDU in the working IDU module 211 fails, the IDU in the backup IDU module 212 can replace the failed IDU.

The ODU module 230: includes a working ODU module 231 and a backup ODU module 232. The ODU in the working ODU module 231 is used to transmit the received signal data. When all the working ODUs are working normally, the ODU in the backup ODU module 232 is in a non-transmitting state. When the ODU in the working ODU module 231 fails, the ODU in the backup ODU module 232 can replace the failed ODU. The ODU module 230 includes a device (not shown) that supports the working ODU and the backup ODU and enables the working ODU and the backup ODU to be switched. The mechanical structure of the device can be a mechanical arm, a rotating bracket (ring type or tree type), Various structures such as levers, linear and curved guides (slides or wheel rails), universal joints and combinations thereof.

The control module 220 is configured to connect the IDU module 210 and the ODU module 230, and configure the correspondence between the IDU and the ODU to control the startup of the backup IDU and the ODU. The monitoring processing module 221 and the switching processing module 222 are included.

The monitoring processing module 221 is used for the IDU and each work in each working IDU module 211.

The ODU in the ODU module 231 performs status monitoring. If one of the working IDUs or ODUs fails, the monitoring processing module 221 starts a backup IDU or ODU to replace the failed IDU or ODU, and simultaneously transmits a control signal to the switching processing module 222. The monitoring processing module 221 may further include an information reporting module (not shown) for notifying maintenance personnel. If the IDU or ODU is changed, the host has an IDU or ODU failure.

The exchange processing module 222 is configured to configure the correspondence between the IDU and the ODU according to the control signal transmitted by the monitoring processing module 221, and exchange the IDU data to the corresponding ODU according to the configured correspondence.

The exchange processing module 222 can be implemented by exchanging interface boards for digital signal exchange. The exchange processing module can also be realized by a microwave relay to exchange analog signals. The present invention provides two specific embodiments of the apparatus. The specific structural diagram of Embodiment 1 is as shown in FIG.

In the first embodiment, the IDU module 310 and the control module of the WiMA or other wireless access device are disposed in an IDU chassis 320. The IDU module 310 is a board located in the IDU chassis 320. IDU1, IDU2, IDU3, and IDU4 are working IDUs, and IDUA and IDUB are backup IDUs. The control module is implemented by the main control board 331 and the switch interface board 332 in the IDU chassis 320. The service from the network side is processed by the IDU and sent to the switch interface board 332. The switch interface board 332 exchanges the data of the IDU to the corresponding ODU according to the configuration of the master control board 331.

The main control board 331 monitors the status registers of each working IDU on the board through the backplane bus (not shown). When all the IDUs work normally, the backup IDU is in the standby state. If one of the working IDUs is not working properly, the master board 331 starts the backup IDU to replace the damaged IDU. Then, the control interface is transmitted to the switch interface board 332, and the switch interface board 332 is configured to exchange the IDU data to the corresponding ODU, and the host has an IDU fault.

The function of the switch interface board 332 is mainly to configure the corresponding relationship between the IDU and the ODU, and the function is realized by exchanging digital signals through the intermediate frequency interface 3321 located therein. A schematic structural diagram of the switch interface board 332 is shown in FIG. The IDP1 port to the IDP6 port is the switching port of the switch interface board 332 and each IDU board. The connection between the port and each IDU board is fixed. For example, IDP1 is connected to IDU1, IDP2 is connected to IDU2, and ODPA port is to ODPF. A port is a switch port on which a switch interface board is connected to each ODU module. The connection relationship between them and the ODU is also fixed. For example, ODPA is connected to ODUA, and ODPF is connected to ODUF. The exchange processing flow of the switch interface board 332 can be represented by a switch function, and the switch interface board 332 sets a switch register for the IDP1 port to the IDP6 port, which is expressed as: IDP 1 - switch - to - reg, IDP2 - switch — to — reg to IDP6 — switch — to — reg. The structure of the Switch function ^!

Switch (IDP1—switch—to-reg){

Case A: ODPA=IDPl;break; 'Switch IDP1 port to ODPA port case B: ODPB=IDPl;break; 'Switch IDP1 port to ODPB port case C: ODPC=IDPl;break; 'Switch IDP1 port to ODPC Port case D: ODPD=IDPl;break; 'Switch IDP1 port to ODPD port case E: 0DPE=IDP 1; break; 'Switch IDP1 port to ODPE port case F: ODPF=IDPl;break; 'Switch IDP1 port To the ODPF port

Default: null; , the default port is empty

}

The master control board 331 can configure the switch function by configuring the switch function to switch the IDP1 port to the IDP6 port to any path from the ODPA port to the ODPE port. For example, when the system is working normally, IDP1 is switched to ODPA; IDP2 is switched to ODPB; IDP3 is switched to ODPC; IDP4 is switched to ODPD; IDP5 is switched to ODPE; IDP6 is switched to 0DPF. If the IDU connected to the IDP1 port is damaged, the main control board 331 switches the working IDU to the IDUE connected to the IDP5 port, and then the main control board 331 reconfigures the register IDP5_switch_to_reg, so that the IDP5 port is switched to the ODPA port. Therefore, the data of the IDP 5 can be exchanged to the ODU of the ODPA port connection through the exchange interface board 332. Then notify the host that the IDU has failed.

In the first embodiment, the 0DU module is a sealed outdoor unit, which is fixed on the track 340 in the device shown in FIG. 3. The working ODU and the backup ODU are designed with upper and lower double rings, and ODUA, 0DUB, ODUC and ODUD are working ODUs. ODUE and ODUF are backup ODUs. During normal operation, the working ODU of 4 sectors is in normal working state, ODUE and ODUF are in standby state, and the ODUE in standby state must be in non-transmitting state. When the working ODU of one of the sectors fails, the main control board 331 controls the stepping motor (not shown) on the track, and under the control of the stepping motor, the fault ODU moves away from its working position. Backup in standby The ODU is moved to the location where the faulty ODU is working. Then, the master board 331 sends a command to configure the switch interface board 332 to exchange the IDU corresponding to the fault ODU to the backup ODU, and notify the host that the ODU has failed.

For example, if the ODUA connected to the ODPA port fails, the main control board 331 starts the backup ODUE instead of the ODUA. Then, the main control board 331 reconfigures the register IDP1_switch_to_reg of the switch interface board 332, and exchanges the port data to the port ODPE (the ODPE is fixedly connected to the ODUE), and completes the backup and switching work of the fault ODU, and backs up. The subsequent connection relationship is: IDU1 ->IDP1 ->ODPE.

A detailed structural view of Embodiment 2 of the apparatus of the present invention is shown in FIG.

In the embodiment 2, the IDU module 510 and the main control board 520 of the WiMAX or other wireless access device are disposed in an IDU chassis 530. The IDU module 510 is a board located in the 1011 chassis 530. In the board, IDU1, IDU2, IDU3, and IDU4 are working IDUs, and IDUA and IDUB are backup IDUs.

Different from Embodiment 1, Embodiment 2 implements an exchange processing function using a microwave relay. The microwave relay realizes analog exchange through the intermediate frequency line. The service from the network side is processed by the IDU and sent to the microwave relay conversion array 540 via the intermediate frequency line 541. Under the control of the main control board, the microwave relay conversion array 540 transfers the IDU to the corresponding ODU.

The main control board 520 monitors the status registers of each working IDU on the board through the backplane bus. When all the IDUs work normally, the backup IDU is in the standby state. If one of the working IDUs is not working properly, the master board 520 starts the backup IDU to replace the damaged IDU. Then, through the serial port configuration ^: wave relay conversion array 540 register, control microwave relay to exchange IDU data to the corresponding ODU, and report the host has IDU failure.

In Embodiment 2, the ODU module is a sealed outdoor unit. Here, the ODU is mounted using a rotating robot arm 550, and its structural schematic is as shown in FIG. ODUA, ODUB, ODUC, and ODUD are working ODUs, ODUEs, and ODUFs are backup ODUs. During normal operation, the working ODU of 4 sectors is in normal working state, ODUE and ODUF are in standby state, and the ODUE in standby state must be in non-transmitting state. When the working ODU of one of the sectors fails, the main control board 520 controls the stepping motor (not shown), under the control of the stepping motor, The fault ODU moves away from its working position. The backup ODU in the standby state moves to the position where the fault ODIJ works, and then the main control board 520 issues a command, the serial port configures the register of the microwave relay conversion array 540, and controls the microwave relay to exchange the IDU corresponding to the fault ODU to the backup ODU. And notify the host that the ODU has failed.

The above is only a preferred 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 within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Rights request

A method for backing up a wireless access device, comprising:

Configuring a backup unit for the outdoor unit of the wireless access device;

2. The method for backing up a wireless access device according to claim 1, further comprising:

The method for backing up a wireless access device according to claim 2, further comprising:

The method for backing up a wireless access device according to claim 2 or 3, further comprising:

The method for backing up a wireless access device according to claim 4, further comprising:

The method for backing up a wireless access device according to claim 1, 2 or 3, wherein the wireless access device comprises a global interactive microwave access WiMAX device.

A wireless access device, comprising:

The outdoor unit module includes a working outdoor unit in a transmitting state and a backup outdoor unit in a non-emitting state; The control module is configured to connect the outdoor unit module and the indoor unit of the wireless access device to control startup of the backup outdoor unit.

8. The wireless access device according to claim 7, further comprising: an indoor unit module: comprising a working indoor unit in an active state and a backup indoor unit in a standby state.

The wireless access device according to claim 8, wherein the working indoor unit and the backup indoor unit, the working outdoor unit and the backup outdoor unit, the backup indoor unit and the backup indoor unit, the backup outdoor unit, and the backup outdoor Switching between units is possible.

The wireless access device according to claim 9, wherein the outdoor unit module includes a support switching device that supports the work outdoor unit and the backup outdoor unit and enables the work outdoor unit and the backup outdoor unit to switch.

11. The wireless access device of claim 10, wherein the mechanical structure of the support switching device employs a mechanical arm or a rotating bracket or a lever or a linear or curved guide or a universal joint.

The wireless access device according to claim 10, wherein the working indoor unit and the backup indoor unit in the indoor unit module are inserted as a single board in the indoor unit frame.

The wireless access device according to claim 8, 9, 10, 11 or 12, wherein the control module comprises:

The wireless access device according to claim 13, wherein the monitoring processing module further comprises:

An information reporting module, configured to send a message to the host when an indoor unit or an outdoor unit fails Send a message, report that the indoor unit or outdoor unit has failed, and send a notice.

The wireless access device according to claim 14, wherein the switching processing module is a switching interface board for exchanging digital signals.

The wireless access device according to claim 14, wherein the exchange processing module is implemented by a microwave relay to exchange analog signals.

17. A backup device for a wireless access device. It is characterized by including:

a monitoring processing module, configured to perform status monitoring on the working outdoor unit in a transmitting state, and when the working outdoor unit fails, start the backup outdoor unit to replace the failed outdoor unit, and simultaneously transmit a control signal;

18. A backup device for a wireless access device. It is characterized by including: