TWI401922B - Cable modem and automatic country code assignment method thereof - Google Patents

Description

Cable data machine and method for automatically acquiring country code

The present invention relates to a network communication device, and more particularly to a cable data machine and a method for automatically acquiring a country code.

When moving a cable modem from one country to another, the country code of different countries is different, and the parameter configuration files of the multimedia terminal adapters corresponding to different country codes are different, which will seriously affect The quality of the call when a user dials a Voice over Internet Protocol (VoIP) call using a cable modem.

If the call quality is to be improved, the user must manually change the MTA parameter profile on the cable modem to correspond to the country code of another country, which will cause great inconvenience to the user. It is necessary to provide a method for automatically obtaining the country code, so as to set the parameter configuration file of the correct multimedia terminal adapter, thereby providing convenience for the user.

In view of this, it is necessary to provide a cable data machine that can automatically obtain a country code to set a parameter configuration file of the correct multimedia terminal adapter.

In addition, it is also necessary to provide a method for the cable data machine to automatically obtain the country code, and the country code can be automatically obtained, so as to set the parameter configuration file of the correct multimedia terminal adapter.

The cable data machine provided in the embodiment of the present invention comprises a storage medium, a transmitting module, a determining module, a selecting module, a multimedia terminal adapter module and a processor, and the cable data machine is provided by a cable data machine terminal system Communicate with the Internet. The storage medium stores the public network protocol address of the cable modem in the first country, and the relationship between the plurality of country codes and the plurality of public internet protocol address ranges. The transmitting module sends a dynamic host setting protocol packet to the Internet by the cable modem terminal system to request to obtain a public internet protocol address. The determining module determines whether the public internet protocol address is obtained from the internet, and when the public internet protocol address is obtained, determining whether the obtained public internet protocol address is connected to the cable The data plane is the same in the first country's public internet protocol address to determine if the cable modem is moved from the first country to the second country. The selection module determines the obtained public internet network according to the relationship between the plurality of country codes and the plurality of public internet protocol address ranges when the cable data machine is moved from the first country to the second country. The country code corresponding to the agreement address. The processor is configured to execute the transmitting module, the determining module, and the selecting module to implement functions of respective modules.

The cable data machine provided by the embodiment of the present invention automatically acquires a country code, and the cable data machine communicates with the Internet through a cable modem terminal system, where the cable data machine includes a storage medium and a processor, and the cable data machine includes a storage medium and a processor. Storage media storage The cable modem is in the first country's public internet protocol address, and the relationship between the plurality of country codes and the plurality of public internet protocol address ranges, the method comprising the steps of: The system sends a dynamic host setting protocol packet to the Internet to request access to a public internet protocol address; determining whether a public internet protocol address is obtained from the internet; if obtained from the internet The public internet protocol address determines whether the obtained public internet protocol address is the same as the public network protocol address of the cable data machine in the first country to determine whether the cable data machine is from the The first country is moved to the second country; and if the cable modem is moved from the first country to the second country, based on the comparison of the plurality of country codes with the plurality of public internet protocol address ranges Determine the country code corresponding to the obtained public internet protocol address.

The above and many advantages of the invention will be readily apparent from the following detailed description of the preferred embodiments.

10‧‧‧User terminal equipment

20‧‧‧Cable Data Machine

202‧‧‧ processor

204‧‧‧Storage medium

206‧‧‧Transmission module

208‧‧‧Judgement module

210‧‧‧Selection module

212‧‧‧Multimedia Terminal Adapter Module

300‧‧‧Cable Data Terminal System

302‧‧‧First cable modem terminal system

304 40 410 401 403 420 405 407‧‧‧Second cable modem terminal system Internet router First router Second router DHCP server First DHCP server Second DHCP server

FIG. 1 is a schematic diagram of an application environment of a cable data machine according to an embodiment of the present invention.

2 is a schematic diagram showing the internal structure of a cable data machine according to an embodiment of the present invention.

3 is a diagram showing a correspondence relationship between a public IP address range, a country code, and a parameter configuration file of a multimedia terminal adapter stored in a storage medium of a cable data machine according to an embodiment of the present invention.

4 is a flow chart of a method for automatically acquiring a country code by a cable modem according to an embodiment of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of an application environment of a cable data machine 20 according to an embodiment of the present invention. In an embodiment of the present invention, when the cable modem 20 is located in the first country, it is connected to the Internet 40 by a first Cable Modem Termination Systems (CMTS) 302. At this time, the user The terminal device 10 can access the Internet 40 via the cable modem 20 and the first cable modem terminal system 302. When the cable modem 20 is moved from the first country to the second country, it is connected to the Internet 40 by the second cable modem terminal system 304. At this time, the user terminal device 10 can be connected by the cable modem. 20 and the second cable modem termination system 304 access the Internet 40, as shown by the dashed portion in FIG.

In the present embodiment, the user terminal device 10 includes a terminal device such as a user's telephone or a personal computer (PC). The Internet 40 includes a first Dynamic Host Configuration Protocol (DHCP) server 405, a second DHCP server 407, at least one first router 401, and at least one second router 403. In the first country, the first cable modem terminal system 302 communicates with the first DHCP server 405 via at least one first router 401. In the second country, the second cable modem terminal system 304 communicates with the second DHCP server 407 via at least one second router 403.

In an embodiment of the present invention, the cable modem 20 is first placed in the first country. When the cable modem 20 is powered on for the first time, it will be broadcasted by the first cable modem terminal system 302. Send to the Internet 40 DHCP packet. In the Internet 40, the DHCP packet passes through at least one first router 401 to reach the first DHCP server 405. After receiving the DHCP packet, the first DHCP server 405 allocates a public IP address to the cable modem 20 according to the usage of its own Internet Protocol (IP) address resource, and passes at least one A router 401 and the first cable modem terminal system 302 transmit the assigned public IP address to the cable modem 20. Cable modem 20 then receives the assigned public IP address and stores the assigned public IP address as its public IP address in the first country.

When the cable modem 20 is powered on again in the first country, the cable modem 20 will obtain the public IP address from the Internet 40 in the same manner. At this time, the cable modem 20 will determine the acquired public IP address. Whether the address is the same as the stored public IP address in the first country. Since the cable modem 20 is still in the first country, the acquired public IP address is the same as the stored public IP address in the first country. Then, the cable modem 20 obtains a parameter configuration file of the multimedia terminal adapter (Multimedia Terminal Adapter) corresponding thereto according to the stored public IP address in the first country.

When the cable modem 20 is moved from the first country to the second country, the cable modem 20 also sends a DHCP packet to the Internet 40 via the second cable modem terminal system 304 in broadcast form after powering up. . In the Internet 40, the DHCP packet passes through at least one second router 403 to reach the second DHCP server 407. After receiving the DHCP packet, the second DHCP server 407 allocates a public IP address to the cable modem 20 via the at least one second router 403 and the second Cable modem terminal system 304 transmits the assigned public IP address to cable modem 20. The cable modem 20 then receives the assigned public IP address and determines if the received public IP address is the same as the stored public IP address in the first country. Since the cable modem 20 is moved to the second country, the acquired public IP address is different from the stored public IP address in the first country. Then, the cable data machine 20 searches for the corresponding country code, that is, the code of the second country, according to the obtained public IP address, and searches for the parameter configuration file of the corresponding multimedia terminal adapter according to the corresponding country code. At the same time, cable modem 20 deletes the stored public IP address in the first country and stores the acquired public IP address as its public IP address in the second country.

In the embodiment of the present invention, for convenience and clarity of description, the first cable modem terminal system 302 and the second cable modem terminal system 304 are collectively referred to as a cable modem terminal system 300. The first router 401 and the second router 403 are collectively referred to as a router 410. The first DHCP server 405 and the second DHCP server 407 are collectively referred to as a DHCP server 420.

Please refer to FIG. 2, which is a schematic diagram showing the internal structure of the cable data machine 20 according to an embodiment of the present invention. In the present embodiment, the cable data machine 20 includes a processor 202, a storage medium 204, a transmitting module 206, a determining module 208, a selecting module 210, and a multimedia terminal adapter module 212.

The processor 202 executes the modules 206-212 to implement the functions of the modules.

The storage medium 204 stores the public IP address of the cable modem 20 in the first country. The storage medium 204 also stores a plurality of public IP address ranges and a plurality of country generations. The code and the parameter configuration file of the plurality of multimedia terminal adapters have a one-to-one correspondence between the public IP address range, the country code, and the parameter configuration file of the multimedia terminal adapter, as shown in FIG.

Referring to FIG. 3, there is shown a correspondence diagram between a public IP address range, a country code, and a parameter configuration file of a multimedia terminal adapter stored in the storage medium 204 of the cable modem 20 according to an embodiment of the present invention. . In this embodiment, the country codes used in different countries are different, and the public IP address range allowed by each country and the parameter configuration file of the multimedia terminal adapter are different, and each country code corresponds to a unique public IP bit. The range of addresses, each country code also corresponds to a parameter configuration file of a unique multimedia terminal adapter, and the parameter configuration files of each multimedia terminal adapter include ringing, tone, frequency, and on-hook time. (Onhook time) and setting of parameters such as Offhook time.

Referring again to FIG. 2, the transmitting module 206 transmits a DHCP packet to the Internet 40 via the cable modem terminal system 300 to obtain a public IP address. In this embodiment, the DHCP packet sent by the sending module 206 passes through at least one router 410 to reach the DHCP server 420, and at least one router 410 in the Internet 40 sends the cable to the cable after receiving the DHCP packet. The data machine 20 returns at least one first response packet, and the DHCP server 420 in the Internet 40 returns at least one second response packet to the cable modem 20 upon receiving the DHCP packet.

In an embodiment of the invention, if the cable modem 20 is not moved in the first country The DHCP server 420, the router 410, and the cable modem terminal system 300 are the first DHCP server 405, the first router 401, and the first cable modem terminal system 302, respectively.

In another embodiment of the present invention, if the cable modem 20 is moved to the second country in the first country, the DHCP server 420, the router 410, and the cable modem terminal system 300 are respectively the second DHCP server 407. The second router 403 and the second cable modem terminal system 304.

The decision module 208 determines whether a public IP address is obtained from the Internet 40. In this embodiment, after receiving the DHCP packet sent by the sending module 206, the DHCP server 420 allocates a public IP address according to the actual usage of its public IP address, if there is an extra public IP address. The address is assigned to the cable modem 20, and if there is no redundant public IP address, the cable modem 20 is replied to the information that the public IP address cannot be assigned.

In this embodiment, if the public IP address cannot be obtained from the DHCP server 420, that is, the public IP address cannot be obtained from the second response packet, the determining module 208 is from the received first response packet. Get the public IP address.

If the public IP address is available from the DHCP server 420, the determining module 208 determines whether the acquired public IP address is the same as the public IP address of the cable modem 20 in the first country to determine the cable modem 20. Whether it was moved from the first country to the second country.

In this embodiment, if the acquired public IP address is the same as the public IP address of the cable modem 20 in the first country, it indicates that the cable modem 20 is not from the first A country was moved to a second country. If the acquired public IP address is not the same as the public IP address stored in the first country by the cable modem 20, it indicates that the cable modem 20 has been moved from the first country to the second country.

When the cable data machine 20 is moved from the first country to the second country, the selection module 210 determines the country code corresponding to the obtained public IP address according to the comparison relationship between the plurality of country codes and the plurality of public IP address ranges, that is, The code for the second country.

In this embodiment, the selection module 210 first determines the range to which the acquired public IP address belongs according to the public IP address range stored in the storage medium 204, and then, according to the correspondence shown in FIG. 3, in the storage medium. The country code corresponding to the public IP address range to which it belongs is obtained 204, and finally, the parameter configuration file of the multimedia terminal adapter corresponding to the country code is searched for in the storage medium 204 according to the acquired country code.

The multimedia terminal adapter module 212 updates the parameter configuration file of the multimedia terminal adapter in the cable data machine 20 when the parameter configuration file of the multimedia terminal adapter corresponding to the country code is found.

At the same time, the storage medium 204 deletes the stored public address of the cable modem 20 in the first country and stores the acquired public IP address as the public IP address of the cable modem 20 in the second country. site.

Since the parameter configuration file of the multimedia terminal adapter used in different countries is different, when the cable data machine 20 is moved from one country to another, if the parameter configuration file of the multimedia terminal adapter in the cable data machine 20 is not updated in time. The call quality of the voice over Internet Protocol (VoIP) call by the user terminal device 10 by the cable modem 20 may be poor. In this embodiment, the parameter configuration file of the multimedia terminal adapter in the cable data machine 20 is updated in time to make it consistent with the parameter configuration file of the multimedia terminal adapter used in the country to improve the VoIP phone. Call quality.

In this embodiment, if the acquired public IP address is the same as the public IP address of the cable modem 20 in the first country, it indicates that the cable modem 20 has not been moved from one country to another. The selection module 210 obtains the parameter configuration file of the corresponding multimedia terminal adapter directly according to the stored public IP address.

Referring to FIG. 4, a flow chart of a method for automatically acquiring a country code by the cable data machine 20 according to an embodiment of the present invention is shown. In the present embodiment, the method is implemented by each module shown in FIG. 2.

In step S400, the transmitting module 206 transmits a DHCP packet to the Internet 40 via the cable modem terminal system 300 to obtain a public IP address. In this embodiment, the DHCP packet sent by the sending module 206 passes through at least one router 410 to reach the DHCP server 420, and at least one router 410 in the Internet 40 sends the cable data to the cable after receiving the DHCP packet. The machine 20 returns at least one first response packet, and the DHCP server 420 in the Internet 40 returns at least one second response packet to the cable modem 20 after receiving the DHCP packet.

In step S402, the determining module 208 determines whether to obtain from the Internet 40. Go to the public IP address. In this embodiment, after receiving the DHCP packet sent by the sending module 206, the DHCP server 420 allocates a public IP address according to the actual usage of its public IP address, if there is an extra public IP address. The address is assigned to the cable modem 20, and if there is no redundant public IP address, the cable modem 20 is replied to the information that the public IP address cannot be assigned.

In step S404, if the public IP address cannot be obtained from the Internet 40, the determination module 208 obtains the public IP address from the response packet received by the cable modem 20. In this embodiment, the DHCP packet sent by the sending module 206 to the DHCP server 420 passes through at least one router 410 in the Internet 40, wherein each router 410 goes to the cable modem after receiving the DHCP packet. 20 returns a response message, that is, the first response packet, and each response message includes the public IP address information used by the current router 410. In this embodiment, the determining module 208 receives the first packet. Get the public IP address in the response message.

If the public IP address is available from the DHCP server 420, then in step S406, the determination module 208 determines whether the acquired public IP address is the same as the public IP address of the first country stored by the cable modem 20. To determine if the cable modem 20 has been moved from the first country to the second country.

In this embodiment, if the acquired public IP address is the same as the public IP address of the first country stored by the cable modem 20, it indicates that the cable modem 20 has not been moved from the first country to the second. country. If the acquired public IP address is not the same as the public IP address of the first country stored by the cable modem 20, it indicates that the cable modem 20 is moved from the first country to the second country.

In step S408, if the acquired public IP address is different from the public IP address stored in the storage medium 204, the selection module 210 determines the acquired according to the comparison relationship between the complex country code and the complex public IP address range. The country code corresponding to the public IP address. In this embodiment, the selection module 210 first determines the range to which the acquired public IP address belongs according to the public IP address range stored in the storage medium 204, and then, according to the correspondence shown in FIG. 3, in the storage medium. In 204, a country code corresponding to the public IP address range to which it belongs is obtained.

In step S410, a parameter profile of the multimedia terminal adapter corresponding to the country code is searched for in the storage medium 204 based on the acquired country code. In this embodiment, the storage medium 204 stores the correspondence between the public IP address range, the country code, and the parameter configuration file of the multimedia terminal adapter as shown in FIG. 3, and the country codes used in different countries are different. The parameter profiles of the multimedia terminal adapters used by the country are also different.

In step S412, if the parameter configuration file of the multimedia terminal adapter corresponding to the country code is found, the multimedia terminal adapter module 212 updates the parameter configuration file of the multimedia terminal adapter in the cable data machine 20. At the same time, the storage medium 204 deletes the stored public address of the cable modem 20 in the first country and stores the acquired public IP address as the public IP address of the cable modem 20 in the second country. In this embodiment, since the parameter configuration files of the multimedia terminal adapters used in different countries are different, when the cable data machine 20 is moved from one country to another, if the multimedia in the cable data machine 20 is not updated in time. The parameter configuration file of the terminal adapter will seriously affect the user's utilization. In the present embodiment, the parameter configuration file of the multimedia terminal adapter in the cable data machine 20 is updated in time to make the multimedia terminal adapter used in the country. The parameter profile is consistent to improve the quality of the call when the user makes a VoIP call.

In step S414, if the acquired public IP address is the same as the public IP address stored in the storage medium 204, the selection module 210 obtains the corresponding public IP address according to the stored first country. Parameter configuration file for the multimedia terminal adapter. In this embodiment, when the acquired public IP address is the same as the public IP address stored in the storage medium 204, it indicates that the cable data machine 20 has not moved to other countries, and the selection module 210 is directly A parameter configuration file of the corresponding multimedia terminal adapter is obtained according to the stored public IP address.

In the cable data machine 20 provided by the embodiment of the present invention and the method for automatically acquiring the country code, when the cable data machine 20 is moved from one country to another, the obtained public IP address is in the storage medium. 204 searches for the public IP address range to which it belongs, and searches for the corresponding country code from the stored public IP address range, and obtains the parameter configuration file of the corresponding multimedia terminal adapter by the country code, and automatically updates the multimedia terminal adapter. The parameter configuration file improves the quality of the call when the user dials the VoIP call, and at the same time saves the cumbersome process of manually setting the parameter configuration file of the multimedia terminal adapter, thereby providing convenience for the user.

In summary, the present invention complies with the requirements of the invention patent, and proposes a patent application according to law. . The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

20‧‧‧Cable Data Machine

202‧‧‧ processor

204‧‧‧Storage medium

206‧‧‧Transmission module

208‧‧‧Judgement module

210‧‧‧Selection module

212‧‧‧Multimedia Terminal Adapter Module

Claims (12)

A cable data machine, which communicates with an internetwork by a cable modem terminal system, the internet network comprising a dynamic host setting agreement server and at least one router, wherein the cable data machine comprises: a storage medium for storing The cable modem is in the first country's public internet protocol address, and the relationship between the plurality of country codes and the plurality of public internet protocol address ranges; the transmitting module is configured to use the cable modem terminal The system sends a dynamic host setting protocol packet to the Internet to request access to a public internet protocol address; a determining module for determining whether to obtain a public internet protocol address from the internet, and obtaining When the public internet protocol address is located, it is determined whether the obtained public internet protocol address is the same as the public network protocol address of the cable data machine in the first country to determine whether the cable data machine is from the The first country is moved to the second country; the selection module is configured to: when the cable modem is moved from the first country to the second country, according to the complex a country code and a plurality of public internet protocol address ranges determine a country code corresponding to the obtained public internet protocol address; and a processor configured to execute the sending module, the determining module, and the selection Module. The cable data machine of claim 1, wherein the determining module And determining that the cable modem is not moved from the first country when the acquired public internet protocol address is the same as the cable modem in the first country's public internet protocol address Determining the cable modem from the second country, and when the acquired public internet protocol address is different from the public network protocol address of the cable modem in the first country A country was moved to the second country. The cable data machine of claim 1, wherein the determining module is further configured to receive at least one first response packet from at least one router in the internet, from the dynamic host setting protocol in the internet. The server receives the second response packet and determines whether a public internet protocol address can be obtained from the second response packet, and when the public internet protocol address is not obtained from the second response packet, A public internet protocol address is obtained in the at least one first response packet. The cable data machine of claim 1, wherein the storage medium further stores a parameter configuration file of the plurality of multimedia terminal adapters, and respectively corresponding to the plurality of country codes. The cable data machine of claim 4, wherein the selection module is further configured to search, in the storage medium, a parameter configuration file of the multimedia terminal adapter corresponding to the country code according to the obtained country code. The cable data machine of claim 5, further comprising a multimedia terminal adapter module, configured to update the multimedia terminal in the cable data machine according to the parameter configuration file of the multimedia terminal adapter found by the selection module. The parameter configuration file for the adapter and stores the public internet protocol address obtained. The cable data machine of claim 4, wherein the selection module Also used when the acquired public internet protocol address is the same as the public network protocol address of the cable modem in the first country, based on the public internet protocol address in the first country Obtain the parameter configuration file of the corresponding multimedia terminal adapter. A method for automatically acquiring a country code by a cable data machine, wherein the cable data machine communicates with an internet network by a cable modem terminal system, the internet network comprising a dynamic host setting agreement server and at least one router, the method The method includes: providing a storage medium, where the storage medium stores a public network protocol address of the cable data machine in a first country, and a comparison relationship between a plurality of country codes and a plurality of public internet protocol address ranges; The cable modem terminal system sends a dynamic host setting protocol packet to the internet to request access to a public internet protocol address; determining whether a public internet protocol address is obtained from the internet; if from the internet If the public internet protocol address is obtained in the network, it is determined whether the obtained public internet protocol address is the same as the public network protocol address of the cable data machine in the first country to determine the line. Whether the cable modem is moved from the first country to the second country; and if the cable modem is moved from the first country to the second country Country code is determined according to the acquired mapping relationship between the address range of the plurality of country code and a plurality of public internet protocol public Internet Protocol address corresponding to the. The method for automatically acquiring a country code by a cable modem as described in claim 8 of the patent application, further comprising: when the obtained public internet protocol address and the cable data machine are in the public internet of the first country When the agreement address is the same, the judgment The cable modem is not moved from the first country to the second country, when the acquired public internet protocol address and the cable modem are not in the first country's public internet protocol address In the same case, it is determined that the cable modem is moved from the first country to the second country. The method for automatically acquiring a country code by the cable modem according to claim 8 of the patent application, further comprising: receiving at least one first response packet from at least one router in the internet; and setting dynamic host from the internet The agreement server receives the second response packet; determines whether the public internet protocol address is obtained from the second response packet; and if the public internet protocol address cannot be obtained from the second response packet, A public internet protocol address is obtained from at least one first response packet. The method for automatically acquiring a country code by a cable modem as described in claim 8 wherein the storage medium further stores a parameter configuration file of a plurality of multimedia terminal adapters, respectively corresponding to the plurality of country codes, the method further comprising Searching, in the storage medium, a parameter configuration file of the multimedia terminal adapter corresponding to the country code according to the obtained country code; and updating the multimedia terminal in the cable data machine according to the parameter configuration file of the found multimedia terminal adapter The parameter configuration file for the adapter and stores the public internet protocol address obtained. The method for automatically acquiring a country code by a cable modem as described in claim 11 further includes: if the obtained public internet protocol address and the cable data machine are in the public network of the first country The road agreement address is the same, and the parameter configuration file of the corresponding multimedia terminal adapter is obtained according to the cable modem at the public internet protocol address of the first country.