KR20060077290A - Apparatus and method for remote upgrade of voip wireless lan phone by using wireless lan - Google Patents

Abstract

The present invention is to provide an apparatus and method for remotely upgrading a VoIP wireless LAN phone using a wireless LAN, comprising: a TFTP server performing a TFTP server function for software upgrade; A key phone system connected to the TFTP server via Ethernet to control a software upgrade for a wireless LAN phone; An access point connected to the keyphone system and the Ethernet to connect the keyphone system and the wireless LAN phone; By including a wireless LAN phone that is connected to the access point and a wireless LAN to receive a software upgrade remotely through the key phone system, it is possible to remotely upgrade a plurality of wireless LAN phones using a TFTP server / client.

Description

Apparatus and method for remote upgrade of VoIP wireless LAN phone by using wireless LAN}

1 is a block diagram of a conventional VoIP wireless LAN phone and its peripheral device using a wireless LAN,

FIG. 2 is a conceptual diagram illustrating an area stored in a flash memory of a wireless LAN phone in FIG. 1.

3 is a block diagram of an apparatus for remotely upgrading a VoIP wireless LAN phone using a wireless LAN according to the present invention;

4 is a flowchart illustrating a remote upgrade method of a VoIP wireless LAN phone using a wireless LAN according to the present invention;

FIG. 5 is a conceptual diagram illustrating areas stored in a flash memory of a wireless LAN phone according to the present invention;

6 is a conceptual diagram illustrating a remote upgrade operation procedure of a wireless LAN phone according to the present invention.

Explanation of symbols on the main parts of the drawings

10: Key Phone System

20: TFTP Server

30: access point

40: wireless LAN phone (TFTP client)

The present invention relates to a remote upgrade device and a method of a Voice over Internet Protocol (VoIP) wireless local area network phone using a wireless local area network, and more particularly, to a Trivial File Transfer Protocol (TFTP). File Transfer Protocol) The present invention relates to a remote upgrade apparatus of VoIP wireless LAN phone using wireless LAN and a method thereof suitable for remotely upgrading a plurality of wireless LAN phones using a server / client.

Recently wireless networks are becoming more and more widely used. As the number of wireless networks increases, users are also demanding broader support for wireless networks, such as voice, video and data communications.

One of the wireless local area networks (WLANs) that are becoming more active is a wireless voice over internet protocol phone (WLAN).

Such a WLAN phone presents a requirement for devices to communicate wirelessly. In particular, the specification establishes physical requirements, such as communication methods, and requirements for medium access IEEE (Institute of Electrical and Electronics Engineers) 802.11 control (Media Access Control, MAC) in WLANs.

Unlike conventional circuit-switched telephones, a wireless LAN phone is a term for a multimedia processing technology that provides multimedia services by loading video and audio in a packet form on an IP network, which is the basis of the Internet network. In general, this means sending voice and video information in digital form within discrete packets, rather than traditional protocols based on circuits such as PSTN, a public switched telephone network.

In addition, the main advantage of Voice over Internet Protocol (VoIP) and Internet telephony technology is the integration of telephony services using existing IP networks.

1 is a block diagram of a VoIP wireless LAN phone and its peripheral device using a conventional WLAN.

As shown therein, a key phone system 1 performing an exchange function; An access point 2 connected to the key phone system 1 through Ethernet and a wireless LAN phone 3 connected to the access point 2 through a wireless LAN.

The operation of the prior art configured as described above will be described in detail with reference to the accompanying drawings.

First, the key phone system 1 is an exchange capable of supporting a VoIP wireless LAN phone 3 using a wireless LAN.

Also, an access point 2 is a general access point capable of supporting a WLAN.

In addition, the wireless LAN phone 3 includes all terminals equipped with a wireless LAN, and includes a wireless Internet Protocol (WIP) phone, a wireless LAN / CDMA dual phone, a wireless LAN / GSM dual phone, and the like.

FIG. 2 is a conceptual diagram illustrating an area stored in a flash memory of a WLAN phone in FIG. 1.

Therefore, as shown in FIG. 2, if the software necessary for driving the wireless LAN phone 3 is configured, the necessary software for the operation of the wireless LAN phone 3 requires a software upgrade of a system program, a C drive, and a media driver.

This is conceptually the same as the software structure written in Flash, such as CDMA / GSM phones.

In FIG. 1, the first group, the second group, the third group, and the like of the wireless LAN phone 3 are wirelessly registered with the key phone system 1 through the first access point, the second access point, the third access point, and the like. .

In addition, a circle with a dotted line in each access point 2 is a distance that can be connected to the wireless LAN phone 3 by the wireless LAN, which is referred to as cell coverage.

In this case, when a software upgrade is required by a bug fix or a function addition, a specific tool for writing a serial cable and a flash memory for each of the wireless LAN phones 3 is conventionally used. Through the upgrade of the software (Middle ware / User Interface, etc.) necessary for the operation of the wireless LAN phone (3).

This excludes the important function of the VoIP wireless LAN phone 3 which is designed to send data.

In a similar concept, the present invention can be applied to a wireless LAN phone 3 (the same wireless LAN and GSM terminal) in which a wireless LAN and a CDMA module, which are developed to enable data exchange by a wireless LAN, are operated in dual.

Since the software structure of the WIP phone is similarly applied to the software structure of the CDMA phone, the WIP phone can be applied to a wireless LAN / CDMA dual phone (WLAN / GSM dual phone).

However, this conventional technology has the following problems.

In other words, you need to upgrade your software when making bug fixes or adding features without hardware modifications. In this case, there is a disadvantage in that the user has to perform a software upgrade in a state where the user is restricted to space by moving to a software upgradeable place.

In addition, since the upgrade has been performed through the serial cable and flash writing tools, there was a limit to upgrade only at the speed of 500 KByte ~ 2 MByte due to the limitation of the data transfer rate.

Accordingly, the present invention has been proposed to solve the above conventional problems, and an object of the present invention is to provide a VoIP wireless LAN phone using a wireless LAN that can remotely upgrade a plurality of wireless LAN phones using a TFTP server / client. A remote upgrade apparatus and a method thereof are provided.

In order to achieve the above object, a remote upgrade apparatus of a VoIP wireless LAN phone using a wireless LAN according to an embodiment of the present invention,

A TFTP server performing a TFTP server function for software upgrade;

A key phone system connected to the TFTP server via Ethernet to control a software upgrade for a wireless LAN phone; An access point connected to the keyphone system and the Ethernet to connect the keyphone system and the wireless LAN phone; It is characterized in that the technical configuration consists of a wireless LAN phone that is connected to the access point and a wireless LAN and receives a software upgrade remotely through the key phone system.

In order to achieve the above object, a remote upgrade method of a VoIP wireless LAN phone using a wireless LAN according to an embodiment of the present invention,

A first step of connecting the key phone system and the wireless LAN phone; And a second step of performing a data query from the wireless LAN phone to the key phone system after the first step, transmitting data from the key phone system to the wireless LAN phone by TFTP, and performing a remote upgrade to the wireless LAN phone. It is characterized by the technical configuration.

Hereinafter, an embodiment according to the present invention as described above, a remote upgrade apparatus for a VoIP wireless LAN phone using a wireless LAN and a method thereof will be described with reference to the accompanying drawings.

3 is a block diagram of an apparatus for remotely upgrading a VoIP wireless LAN phone using a wireless LAN according to the present invention.

As shown here, the TFTP server 20 performs a TFTP server function for software upgrade; A key phone system 10 connected to the TFTP server 20 by Ethernet to control a software upgrade for the wireless LAN phone 40; An access point (30) connected to the keyphone system (10) by Ethernet to connect the keyphone system (10) and the wireless LAN phone (40); It is configured to include a wireless LAN phone 40 is connected to the access point 30 by a wireless LAN to receive a software upgrade remotely through the key phone system 10.

4 is a flowchart illustrating a remote upgrade method of a VoIP WLAN phone using a WLAN according to the present invention.

As shown therein, the first steps ST1 to ST6 connect the key phone system 10 and the wireless LAN phone 40; After the first step, the wireless LAN phone 40 performs a data query to the key phone system 10, and transmits data from the key phone system 10 to the wireless LAN phone 40 by TFTP to the wireless LAN phone 40. It includes a second step (ST7 ~ ST10) for performing a remote upgrade to).

The first step may include an eleventh step (ST1) (ST2) of receiving an upgrade setup request from the key phone system (10) to the wireless LAN phone (40); A twelfth step (ST3) (ST4) of answering an inquiry of an IP (Internet Protocol) address to the wireless LAN phone (40) from the key phone system (10) after the eleventh step; After the twelfth step, the thirteenth step ST5 and ST6 receive a response by making a data connection request from the key phone system 10 to the wireless LAN phone 40.

The second step may include a twenty-first step (ST7) of inquiring data from the wireless LAN phone (40) to the key phone system (10); A twenty-second step (ST8) of transmitting data by opening a data transmission channel between the key phone system (10) and the wireless LAN phone (40) after the twenty-first step; After the twenty-second step, the wireless LAN phone 40 includes the twenty-third step (ST9) (ST10) of notifying the end of the data transmission to the key phone system 10 and receiving a response.

An apparatus for remotely upgrading a VoIP wireless LAN phone using a wireless LAN and a method thereof according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, the present invention intends to remotely upgrade a plurality of wireless LAN phones using a TFTP server / client.

To this end, a TFTP server 20 necessary for software upgrade is provided, a necessary protocol is set before data transmission, a location of data required for data transmission can be determined, and IP of each wireless LAN phone 40 is required. .

The data transmission and reception between the TFTP server 20 and the wireless LAN phone 40 that is a TFTP client is the same as the TFTP standard protocol.

In addition, when an upgrade of a system program, a C drive, a media drive is required, the key phone system 10 may receive software of the wireless LAN phone 40 including the TFTP client 40 through the TFTP server 20. This may be enabled by implementing a web (WEB) server in the key phone system 10, and may also be implemented between the TFTP server 20 and the wireless LAN phone 40 without the key phone system 10.

For example, when it is necessary to upgrade the system program (File "XX.bin") in the key phone system 10, the TFTP server 20 instructing the software data file ("XX.bin") is called. This may store data in the memory of the key phone system 40 via Ethernet. This is made possible by the TFTP standard protocol. This is referred to in FIG. 3 1) the system program (XX.bin).

The data (XX.bin) stored in the memory of the keyphone system 10 is again buffered in the memory of the keyphone system 10 by the TFTP protocol and the wireless LAN to the wireless LAN phone 40 (TFTP client). "XX.bin") stores the transmitted data in the memory of the WLAN phone 40.

The wireless LAN phone 40 deletes the software of the system program already stored in the flash memory of the wireless LAN phone 40 after receiving the data transmitted from the key phone system 10, and then writes again. do.

This corresponds to all of the system program ("XX.bin"), C Drive ("XC.bin"), and D Drive ("XD.bin") files. It is possible to receive and remotely upgrade all the software required for operation.

In addition, since the wireless LAN phones 40 each have IP information, all of the wireless LAN phones 40 connected to the access point 30 can be upgraded at the same time.

In addition, the wireless LAN phone 40 is any terminal equipped with a wireless LAN, and may use a WIP (Wireless Internet Protocol) phone, a wireless LAN / CDMA dual phone, a wireless LAN / GSM dual phone, or the like.

FIG. 5 is a conceptual diagram illustrating an area stored in a flash memory of a wireless LAN phone according to the present invention.

Therefore, the structure of each software stored and operating in the flash ROM (Read Only Memory) of the wireless LAN phone 40 is shown in FIG. 5, and the location of the download application (Wireless LAN + TFTP client) software is also shown in FIG. 5. .

The download application runs and drives a remote upgrade.

6 is a conceptual diagram illustrating a remote upgrade operation procedure of a wireless LAN phone according to the present invention.

Thus, in FIG. 6, each transmitted system program (8.75 Mbytes), C drive (10 Mbytes), and Media Drive (10 Mbytes) are buffered in the memory of the WLAN phone 40, and then the buffered data of the WLAN phone 40 is stored. The concept of the structure of storing in flash memory is explained.

Referring to the operation of the present invention in more detail as follows.

First, the host key phone system 10 transmits an upgrade setup request message (“Upgrade Setup Request”) to the wireless LAN phone 40 as a client for data connection and transmission when an upgrade is required (ST1).

Then, the wireless LAN phone 40 as a client determines that the request of the host is an upgrade, and transmits a response message (“Upgrade Setup OK”) to the key phone system 10 as the host (ST2).

The key phone system 10 receives the "Upgrade Setup OK" message and then requests the IP address of the client required for the upgrade connection to the WLAN phone 40. To this end, the message “Inquiry IP Address” is transmitted from the key phone system 10 to the wireless LAN phone 40 (ST3).

Then, the client receives the "Inquiry IP Address" message, and then sends the client's IP address in the "IP Address Response" message (ST4).

Accordingly, the host 10 can know the IP address of the client for the upgrade.

Based on this IP information, a "Data Connection Request" message is transmitted to the client to open a path for data connection (ST5).

The client sends a "Data Connection OK" message and opens the data connection path (channel) (ST6).

Thus, the wireless LAN phone 40 receives data from the key phone system 10 through an open data connection path, and the received data (system program, C drive, media drive) is stored in the flash memory of the wireless LAN phone 40. It is stored for each address.

Accordingly, after the data path is opened, the client sends an "Inquiry Data" message to the host with a "Data Connection OK" message and enters a mode for receiving data (ST7).

When the host receives the "Inquiry Data" message, the host transmits data (ST8).

When the transmission is complete, the client sends a "Data Send End OK" message (ST9), the host sends a "Data Send End OK" message for this "Data Send End" message, finishes sending data, and completes the upgrade. (ST10)

As such, the present invention is to remotely upgrade a plurality of wireless LAN phones using a TFTP server / client.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, an apparatus and method for remotely upgrading a VoIP wireless LAN phone using a wireless LAN according to the present invention have an effect of remotely upgrading a plurality of wireless LAN phones using a TFTP server / client.

Therefore, when the software is upgraded according to software bug fixes and function additions, in the prior art, the user had to manually perform the upgrade for each wireless LAN phone. However, when the present invention is applied, the function of the key phone system is not required without special movement of the user. This will allow you to remotely upgrade your WLAN in other locations.                     

Since it can connect to all systems and wireless LAN phones with public IP, it is possible to upgrade the software without being restricted by space for both users and developers since it is not limited to the region.

Claims (4)

A TFTP server performing a TFTP server function for software upgrade; A key phone system connected to the TFTP server via Ethernet to control a software upgrade for a wireless LAN phone; An access point connected to the keyphone system and the Ethernet to connect the keyphone system and the wireless LAN phone; And a wireless LAN phone configured to include a wireless LAN phone that is connected to the access point and the wireless LAN to receive a software upgrade remotely through the key phone system. A first step of connecting the key phone system and the wireless LAN phone; And performing a data query from the wireless LAN phone to the key phone system after the first step, transmitting data from the key phone system to the wireless LAN phone by TFTP, and performing a remote upgrade to the wireless LAN phone. Remote upgrade method of a VoIP wireless LAN phone using a wireless LAN, characterized in that. The method of claim 2, wherein the first step, An eleventh step of making an upgrade setup request from the keyphone system to the WLAN phone and receiving a response; A twelfth step of receiving a response by querying an IP address from the keyphone system to the wireless LAN phone after the eleventh step; And a thirteenth step of receiving a response by requesting a data connection from the keyphone system to the wireless LAN phone after the twelfth step. The method of claim 2 or 3, wherein the second step, A twenty-first step of making a data query from the wireless LAN phone to the key phone system; A twenty-second step of transmitting data by opening a data transmission channel between the key phone system and the wireless LAN phone after the twenty-first step; And performing a twenty-third step of notifying the end of data transmission from the wireless LAN phone to the key phone system and receiving a response after the twenty-second step.

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