KR20090023971A - Method and system for integrally managing wired and wireless devices - Google Patents

Abstract

A method and a system for integrally managing wired and wireless devices are provided to enable a service provider to simultaneously manage wired and wireless network devices and manage devices using different modes through a server supporting one protocol. An OMA(Open Mobile Alliance) DM server(130) is connected to a DSL(Digital Subscriber Line) CPE(Customer Premise Equipment) device(300) through a protocol changing device(120). The protocol changing device changes a CPE WAN management protocol based message and a DM base message. The protocol changing device is connected to an interface connected to a DSL CPE device. An OMA DM device(200) comprises an OMA DM client(210). The DSL CPE device comprises a CWMP client(310).

Description

Method and system for integrally managing wired and wireless devices

The present invention relates to device management, and more particularly to a technique for establishing a DM session by a Device Management server.

Techniques exist for managing end devices on a network. The standardized technology for managing wireless devices is the Customer-premise equipment (CWMP) WAN, in which the Open Mobile Alliance (OMA) Device Management (DM) exists and is being standardized in the DSL Forum to manage devices operating on wired networks. Management Protocol) is actually used.

Figure 1 shows a network configuration for the CPE WAN Management Protocol (CWMP). Customer-premise equipment (CPE) refers to an end device of a subscriber in a digital subscriber line (DSL) network. The CWMP Device Manager is an auto configuration server (ACS). This ACS 10 is designed to centralize the management of CPEs into one common application. The CWMP device management device is a solution based on the DSL forum standard and supports TR-069 and its extensions (TR-098, TR-104, TR-106, etc.) to service TR-069 enabled CPE devices. Enable integrated management, control, configuration, monitoring and delivery The ACS 10 manages the CPEs 31,..., 3N through the gateway device 20.

2 is a block diagram of a network for managing a device using OMA DM technology.

OMA DM can manage firmware, software, parameters, etc. in the terminal by reading (Get), changing (Replace), or execute (Management Objects) of the wireless terminal using the DM protocol. . The apparatus for managing the wireless terminal is an OMA DM server 50 and the management target is an OMA DM client 61, ... 6N, like the wireless terminal.

As shown in FIG. 1 and FIG. 2, different protocols are used for similar device management functions, and two types of devices can be managed only by establishing a different management server for each device type.

Recently, the necessity of technology for managing wired / wireless devices as a solution through a single server is mainly focused on network operators that supply both wired and wireless networks. The process of integrating two already deployed technologies in one way is not realistically costly or technically difficult.

As a result, a service provider having both wired and wireless networks has a disadvantage in that different servers must be constructed for each type of device. In addition, even from a user's point of view, when two devices have two types of devices, they may have difficulty when both devices try to receive one service at the same time.

Therefore, there is a demand for a technology that allows a network operator to simultaneously manage wired and wireless devices using a single server using only one of the existing OMA DM or CWMP technologies.

The present invention provides a system and method for collectively managing devices that use two different protocols.

Specifically, the present invention proposes a system and method for integrating CWMP and OMA DM protocols and an operator can simultaneously manage wired and wireless devices using one device management protocol.

To this end, the present invention provides a system for managing devices in a wired and wireless network, comprising: a DM server managing wireless devices, an ACS server managing wired network devices, and a DM message when receiving a DM message from the DM server. Converting the data into a CWMP message that can be interpreted by a device in a wired network, and converting the CWMP message into a DM message that can be interpreted by a device in a wireless network when receiving a CWMP message from the ACS.

The present invention also provides a method for managing a device in a system including a DM server for managing devices in a wireless network and an ACS for managing devices in a wired network, wherein the DM message is received when a DM message is received from the DM server. Converting a CWMP message that can be interpreted by the device into a wired network device; and receiving the CWMP message from the ACS, converting the CWMP message into a DM message that can be interpreted by a device of the wireless network to Transmitting to the device.

According to the present invention, the operator can manage the devices of the wired and wireless network at the same time by using the above methods. Operators can manage devices using different methods even with servers that support only one protocol.

 In addition, users owning both types of devices can also update the software at the same time, and can receive other DM services such as configuration information automatically changed at the same time without manual specification.

The two device management protocols, OMA DM protocol and CWMP, use different bearers, but are based on the structure of the server and client. In addition, both protocols are based on XML.

The present invention performs protocol conversion using the common features of the two protocols.

The present invention enables a management authority to simultaneously manage a device equipped with an OMA DM client and a device equipped with a CWMP client by using one of the OMA DM protocol and CWMP for device management.

To this end, the present invention provides a protocol conversion device for interfacing between the OMA DM protocol and CWMP. The protocol conversion device converts the CWMP message into an OMA DM message, or converts the OMA DM message into a CWMP message.

However, the OMA DM technology and the CWMP technology have different command systems for controlling a device. Therefore, simply converting one-to-one between OMA DM messages and CWMP messages cannot interface between the OMA DM protocol and CWMP.

For example, downloading and executing software or firmware may be indicated by sending a single message to the device in CWMP technology, while in OMA DM technology several messages may be sent to the device. That is, a message based on one protocol may be converted into a message based on several different protocols, or a message based on several different protocols may be converted to a message based on one different protocol. However, a message based on one protocol may be converted to a message based on another protocol in a one-to-one manner and delivered to the device in real time. According to an embodiment, the protocol conversion apparatus may convert a CWMP message from an ACS into an OMA DM message. Send to DM client, convert OMA DM message from DM client to CWMP message and send to ACS. At this time, the protocol conversion apparatus determines whether to convert the CWMP message into an OMA DM message one-to-one and transmit it in real time. That is, the protocol conversion apparatus determines whether the CWMP message corresponds to one OMA DM message or several OMA DM messages, and performs a conversion function according to the result. If the CWMP message corresponds to several OMA DM messages, the protocol conversion apparatus transmits several OMA DM messages corresponding to one CWMP message to the OMA DM device, respectively, and receives respective response messages corresponding thereto. Subsequently, the protocol conversion apparatus generates a response message for the one CWMP message to the ACS and transmits the response message to the ACS.

The protocol conversion apparatus according to another embodiment converts a DM message received from the OMA DM server into a CWMP message and transmits the CW message to the CWMP client, and converts the CWMP message from the CWMP client into an OMA DM message and transmits it to the DM server. In this case, similarly to the above-described embodiment, the protocol conversion apparatus determines whether the OMA DM message should be converted to CWMP message one-to-one and transmitted in real time. That is, the protocol conversion device determines whether the CWMP message corresponds to one OMA DM message or several OMA DM messages, and performs a conversion function according to the result.

If two or more consecutive OMA DM messages correspond to one CWMP message, the protocol conversion apparatus stores the received OMA DM message and then waits for receiving at least one other OAM DM message that is continuously transmitted. Subsequently, when all OAM DM messages corresponding to the one CWMP message are received, the protocol conversion device generates one CWMP message corresponding to the received OMA DM messages and transmits the same to the CWMP client. As such, the present invention provides a device that enables a management authority to simultaneously manage a device and an CMA equipped with an OMA DM client using one of OMA's DM technology and the CWMP technology of the DSL forum to manage the device. And methods.

According to whether the network operator adopts OMA DM technology as the device management protocol or CWMP technology of the DSL forum, there may be two network structures as shown in FIGS. 3 and 4. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

3 illustrates a network configuration when a network operator manages a device using TR-069 technology of a DSL forum.

Referring to FIG. 3, the ACS 110 is connected through an OMA DM device 200 and a protocol conversion device 120. That is, a protocol conversion device 120 for exchanging CWMP-based messages and DM-based messages is connected to an interface connected to the OMA DM device 200. The OMA DM device 200 includes an OMA DM client 210, and the DSL CPE device 300 includes a CWMP client 310.

The protocol conversion apparatus 120 converts the CWMP message received from the ACS 110 into an OMA DM message and converts the OMA DM message received from the OMA DM device 200 into a CWMP message and transmits the same to the ACS 110.

4 illustrates a network configuration when a network operator manages a device using OMA's DM technology.

The OMA DM server 130 is connected to the DSL CPE device 300 through the protocol conversion device 120. That is, a protocol conversion device 120 for exchanging CWMP-based messages and DM-based messages is connected to an interface connected to the DSL CPE device 300. 3, the OMA DM device 200 includes an OMA DM client 210, and the DSL CPE device 300 includes a CWMP client 310.

The protocol conversion device 120 converts the DM message received from the OMA DM server 130 into a CWMP message and transmits the converted CWMP message from the DSL CPE device 300 to an OMA DM message and transmits it to the OMA DM server 130. .

The protocol conversion device 120 may be implemented in various ways. When the internal configuration of the protocol conversion device 120 is diagrammatically illustrated as a function, it may have a configuration as shown in FIG. 5.

5 is a block diagram showing the configuration of a protocol conversion apparatus according to an embodiment of the present invention.

The protocol converter 120 includes a command converter 122 and a parameter converter 123.

The command converter 122 converts an RPC (Remote Process Protocol) method used in the CWMP protocol into a command of the DM protocol and a node parameter of the MO. Alternatively, the command converter 122 converts a command of the DM protocol and a node parameter of the MO into an RPC method used in the CWMP protocol.

The parameter converter 123 functions to convert the data model of the device used in the CWMP protocol into device info MO (device Info MO). Alternatively, the parameter converter 123 functions to convert the device information MO into a device data model.

The protocol conversion device 120 also includes a mapping table 121. The mapping table 121 stores mapping information between the parameters of the data model of the device used in the CWMP and the nodes of the MO.

That is, the command converter 122 and the parameter converter 123 are connected to the mapping table 121 and perform a conversion function with reference to the mapping table 121, so that elements of each CWMP-based message or OMA DM-based message are received. Output

The protocol conversion device 120 also includes a storage 125, a message generation controller 126, and a message generator 127.

Message generation controller 126 controls message generator 127 for generating CWMP based messages or OMA DM based messages. Specifically, the message generation controller 126 is connected to the command converter 122 and the parameter converter 123 to receive elements of the CWMP based message or the OMA DM based message from these converters. The message generation controller 126 then controls the message generator 127 to combine the elements of the CWMP based message or the OMA DM based message to generate the appropriate OMA DM based message CWMP based message.

As described above, the OMA DM technology and the CWMP technology have different command schemes for controlling the device. Therefore, simply converting one-to-one between OMA DM messages and CWMP messages cannot interface between the OMA DM protocol and CWMP.

To this end, the message generation controller 126 determines whether to convert the CWMP message into an OMA DM message one-to-one and transmit it in real time. Alternatively, the message generation controller 126 determines whether the OMA DM message should be converted into a CWMP message one-to-one and transmitted in real time.

That is, the message generation controller 126 determines whether the CWMP message corresponds to one OMA DM message or several OMA DM messages, and controls the message generator 127 according to the result.

If the CWMP message corresponds to several OMA DM messages, the message generation controller 126 instructs the message generator 127 to sequentially generate several OMA DM messages corresponding to one CWMP message, and these Several OMA DM messages are sequentially sent to the OMA DM device 200 and receive respective response messages corresponding thereto. In this case, the response messages may be stored in the storage 125.

Subsequently, the message generation controller 126 instructs the message generator 127 to generate a response message for the one CWMP message and transmits it to the ACS 110 or the CWMP client 200.

According to another embodiment, the message generation controller 126 determines whether to convert the OMA DM message from the OMA DM server 130 to a CWMP message one-to-one and transmit it to the device in real time. If two or more consecutive OMA DM messages correspond to one CWMP message, the message generation controller 126 stores the received OMA DM message in the storage unit 125 and at least one other OAM transmitted in succession. Wait for the reception of the DM message. Subsequently, when all OAM DM messages corresponding to the one CWMP message are received, the message generation controller 126 instructs the message generator 127 to generate one CWMP message corresponding to the received OMA DM messages. Send to DSL CPE device 300. The message generator 127 generates an OMA DM based message CWMP based message under the control of the message generation controller 126. In detail, the message generator 127 generates a SyncML message used by the OMA DM or a SOAP message used by the CWMP.

Although not shown, the protocol conversion apparatus 120 may include a transmitter / receiver connected to the device management server 110 or 130 in the operator's network to transmit and receive a message. In addition, the protocol conversion apparatus 120 may include a transmitter / receiver that is connected to the managed devices and transmits and receives a protocol message that the device can interpret.

On the other hand, the protocol conversion device 120 can be implemented in other structures. For example, the protocol conversion apparatus 120 may create and store a 1: 1 mapping table between all possible Soap messages and OMA DM messages, and then find and transmit another corresponding protocol message when one protocol message is received. This is possible.

Hereinafter, a message flow between a DM server and a client according to embodiments of the present invention will be described.

First, a message flow between the ACS 110 and the OMA DM client 200 will be described with reference to FIG. 6.

3 and 6, the ACS 110 transmits a SOAP message containing url information of a package to the protocol conversion apparatus 120 using the Download Request RPC method in step 601. Receiving this message, the protocol conversion apparatus 120 replaces the Download Request RPC method with a Replace command that replaces the EXEC and package URL for executing the OMA DM command download in step 603. In operation 605 and step 609, the protocol conversion device 120 generates an OMA DM message containing each command and transmits the generated OMA DM message to the OMA DM client 200.

That is, when the protocol conversion device 120 receives one Download Request RPC method, the protocol conversion device 120 recognizes that the Download Request RPC method corresponds to an EXEC that executes the download of the OMA DM instruction and a Replace command that replaces the package URL. After transmitting the replace message to the OMA DM client 200, the EXEC message for executing the OMA DM command download is transmitted to the OMA DM client 200.

Upon receiving the OMA DM message, the DM client 200 sends a SycML Status message for each command to the protocol conversion device 120 in steps 607 and 611. Upon receiving these messages, the protocol conversion apparatus 120 generates a Download Response RPC method according to the value of status received in step 613 and transmits it to the ACS 110 in step 615. Subsequently, the DM client 200 performs a download according to the OMA DM message received in step 617. After completing the download, the OMA DM client 200 transmits the download result value to the protocol conversion device 120 through a Generic Alert message. Then, the protocol conversion device 120 changes the Generic Alert message to the Transfer Complete method in step 621 and transmits it to the ACS 110 in step 623.

Next, the message flow between the OMA DM server 130 and the DSL CPE client 300 will be described with reference to FIG. 7.

The OMA DM server 130 transmits a Replace command for determining the PkgURL node value of the corresponding FUMO to the protocol conversion device 120. The protocol conversion apparatus 120 stores the value of the Pkg URL node received in step 703 as a parameter of the RPC method. Subsequently, the protocol conversion apparatus 120 transmits the status of the Replace command to the OMA DM server 130 in the form of a syncML message in step 705. When receiving the Status, the OMA DM server 130 transmits a message to the protocol conversion device 120 to execute the Download node using the EXEC command in step 707.

Receiving this message, the protocol conversion apparatus 120 changes the EXEC command to the Download Request message of the RPC method at 709 and specifies the PkgURL value previously stored as an argument of the Download Request method to generate a SOAP message, and in step 711, the DSL CPE Send to device 300.

That is, the protocol conversion apparatus 120 stores and stores a Replace command for determining a PkgURL node value of the corresponding FUMO, and receives an EXEC command for executing a Download node later, and then receives an RPC method corresponding to these OMA DM messages. Create a Download Request message.

The CPE device 300 receiving the message transmits a Download Response message to the protocol conversion apparatus 120 in step 713. The protocol conversion device 120 then sends this message to the OMA DM server 130 with a SynML status message for the EXEC command of the OMA DM (not shown).

 Subsequently, the CPE device 300 performs Downloading in step 715 and sends a result value indicating whether the download succeeds in step 717 to the protocol conversion device 120 using the Transfer Complete method. When the protocol conversion device 120 receives the message in step 719, the protocol conversion device 120 changes the Transfer complete RPC method to a generic alert message and transmits the message to the OMA DM server 130 in step 721.

1 is a diagram showing a network configuration for the CWPE (CPE WAN Management Protocol),

2 is a diagram illustrating a configuration of a network managing a device using OMA DM technology;

3 is a diagram illustrating a network configuration when a network operator manages a device using TR-069 technology of a DSL forum;

4 is a diagram illustrating a network configuration when a network operator manages a device using the DM technology of OMA.

5 is a block diagram showing the configuration of a protocol conversion apparatus according to an embodiment of the present invention;

6 is a diagram illustrating a message flow between an ACS and an OMA DM client.

7 is a diagram illustrating a message flow between an OMA DM server and a DSL CPE client.

Claims (7)

In the system for managing devices of wired and wireless network, DM server for managing the devices of the wireless network, An ACS server that manages wired network devices, Receiving a DM message from the DM server converts the DM message into a CWMP message that can be interpreted by a device of a wired network, and when receiving a CWMP message from the ACS, converts the CWMP message into a DM message that a device of a wireless network can interpret. And a protocol conversion device. The apparatus of claim 1, wherein the protocol conversion device is A command converter that converts RPC (Remote Process Protocol) methods used in the CWMP protocol into DM protocol commands and MO node parameters, and converts DM protocol commands and MO node parameters into RPC methods used in the CWMP protocol. Wow, And a parametric converter for converting the data model of the device used in the CWMP protocol into the device info MO and converting the device information MO into the device data model. The system of claim 2, wherein the protocol conversion apparatus further comprises a mapping table for storing mapping information between parameters of a data model of a device used in CWMP and nodes of the MO. The system of claim 1, wherein the protocol conversion apparatus further comprises a message generator for generating a CWMP based message or an OMA DM based message. The apparatus of claim 4, wherein the protocol conversion apparatus determines whether the DM message should be converted to a CWMP message one-to-one and transmitted in real time when a CWMP message corresponding to the received DM message is generated. Message generation controller instructing the message generator to generate the CWMP message when all DM messages corresponding to the CWMP message are received after waiting for reception of another DM message corresponding to the CWMP message when the DM messages correspond. The system further comprises. The method of claim 4, wherein the protocol conversion apparatus determines whether the DM message should be converted in real time by one-to-one conversion into a CWMP message when the DM message corresponding to the CWMP message is generated, and several DM messages are added to the CWMP message. And a message generation controller for instructing to sequentially generate a plurality of DM messages corresponding to the CWMP message, if applicable. Claims [1] A method for managing a device in a system comprising a DM server managing devices in a wireless network and an ACS managing devices in a wired network. Receiving a DM message from the DM server, converting the DM message into a CWMP message that can be interpreted by a device of a wired network and transmitting the CW message to a wired network device; Receiving a CWMP message from the ACS, converting the CWMP message into a DM message that can be interpreted by a device of a wireless network and transmitting the converted CW message to a device of the wireless network.

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