KR20020062472A - Method of converting internet protocol address in ALL-IP terminal - Google Patents

Abstract

PURPOSE: An internet protocol(IP) address conversion method in all internet protocol(ALL-IP) terminal is provided to easily generate an internet protocol version 6(IPv6) address of terminal by utilizing a loaded UIM(User Identity Module) identifier(ID) when the IPv6 address is allocated to the terminal later. CONSTITUTION: An internet protocol address conversion method in ALL-IP terminal includes the steps of classifying a known UIM ID into an operator ID region and a subscriber ID region, the subscriber being subscribed to the operator, converting the classified operator ID and the subscriber ID into an IP address and filling the remaining region with a dummy bits.

Description

Method of converting internet protocol address in ALL-IP terminal

The present invention is an address allocation technology of a terminal using an Internet Protocol version 6 (IPv6) address, and in particular, an apparatus for generating an IPv6 address using a User Identity Module (UIM) Identification (UIM). The present invention relates to an Internet protocol address translation method and a computer-readable recording medium having recorded thereon a program for realizing the method.

At present, the most important issue in the field of communication is the combination of mobile communication and Internet technology. In other words, the mobile communication and Internet fields were recognized as completely separate technology fields, and some parts (IWF: Interworking Function) considered the interworking between the two technologies. However, while formulating the application of IP technology, both at ^{99 12 (3 rd Generation Partnership Projects} ) 3GPP in January 3GPP2 year, in early 2000 was an accomplished quite a lot of discussion about this, currently a discussion of related technologies in various fields In progress. These discussions are mainly about quality of service (QoS), security support, and mobility support. However, the discussion is still in the rudimentary discussions such as identifying commonalities and identifying differences in different technical areas.

In the present invention, it deals with addressing among them. In other words, IPv6 has a 128-bit addressing system, but it is still under discussion for its practical application. In the terminal field of mobile communication, the UIM card (or SIM (Subscriber Identity Module) card) has emerged. Since it is in a position to determine an address system for another UIM ID (or SIM ID), it is considered that there is a high possibility of interworking and grafting on each other. For reference, there are no technical proposals for linking these two address systems.

Therefore, the effective combination of IPv6 address system promoted by IETF (Internet Engineering Task Force) and UIM ID address allocation scheme promoted by 3GPP2 is essential.

The present invention has been proposed in order to meet the above-described requirements, and an internet protocol address translation method of a terminal for generating an IPv6 address using a UIM ID, and a program for realizing the method. Its purpose is to provide a computer-readable recording medium having recorded thereon.

1 is an exemplary configuration diagram of an IPv6 packet header to which the present invention is applied.

2 is a diagram illustrating an embodiment of a process of converting a 48-bit MAC address into a 64-bit EUI address used in the present invention.

3 is a diagram illustrating an embodiment of an internet address translation method according to the present invention;

4 is an exemplary view of a terminal equipped with an ID conversion module according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

10: UIM card 20: ID conversion module

In order to achieve the above object, the present invention provides a method for converting an Internet address in an integrated Internet Protocol (ALL-IP) terminal, comprising a known user identity module (UIM) identifier (ID) and an operator identifier (ID) region. A first step of dividing into a subscriber identifier identifier area subscribed to an operator; And a second step of converting the separated operator identifier and subscriber identifier to an Internet Protocol (IP) address, and filling the remaining areas with dummy bits. It is characterized by.

In addition, the present invention provides a subscriber identifier that subscribes a known user identity module (UIM) identifier (ID) to an operator identifier region and an operator in an Internet address translation apparatus having a processor. A first function of dividing into (ID) regions; And converting the separated operator identifier and subscriber identifier to an Internet Protocol (IP) address, and to implement a second function of filling the remaining areas with dummy bits. A computer readable recording medium having recorded a program is provided.

The present invention proposes an effective combination of the IPv6 address system promoted by the IETF and the UIM ID address allocation scheme promoted by 3GPP2.

To this end, the present invention uses the UIM ID in converting the UIM ID (32 bits) into an IPv6 address.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Although the SIM ID of 3GPP can be processed similarly to the UIM ID of 3GPP2, the specific current allocation method is not known.

One of the most interests in Internet related technologies these days is IPv6 technology. This is because the IPv6 technology is recognized as a fundamental solution to solve the problems of the existing IPv4 technology (for example, address exhaustion problem, QOS guarantee problem, security problem, etc.). In particular, Asian and European countries are most active in address deprivation.

For reference, both 3GPP and MWIF have decided to apply IPv6 to a mobile communication network.

The biggest feature of IPv6 is the 128-bit address system. This allows more address allocation than the 32-bit addressing scheme of IPv4, so that not only the address assignment for mobile communication terminals, but also IP address assignment for home appliances that are recently attracting attention.

1 shows a header structure of an IPv6 packet.

As shown in FIG. 1, the transmission / reception addresses (Source Address, Destination Address) all have 128 bits.

Briefly, the use of the other fields, "Version (4-bit)" is set to 0110, which means IPv6, "Traffic Class (8-bit)" is used for class or priority identification. The meaning of the value of this field is given in RFC1881. "Flow Label (20 bit)" is not yet specifically determined for its use. However, as a value assigned by the sender node, it may be used when there is a need to distinguish each flow (QoS-related case, etc.). In addition, "Payload Length (16 bits)" means the remaining length except the 40-byte basic header. Also, " Next Header (8 bits) " indicates which header the header is related to when an additional header is needed. Finally, the "Hop Limit" is used to limit the number of nodes (routers) to pass through the packet transmission.

The basic framework of IPv6's 128-bit address allocation method is detailed in the Internet Draft document "IP Version 6 Addressing Architecture." However, among the various allocation methods mentioned in this document, one that can be utilized in a mobile communication network is to use it as a globally unique interface identifier using an IPv6 address. The reason is that the terminal equipped with the UIM ID or the UIM ID itself must be uniquely distinguishable in the world. According to the Draft document, in this case, the IEEE EUI-64 format is defined. Therefore, the proposal of the method of converting the UIM ID to the EUI-64 format is the main content of the present invention.

For reference, converting the 48-bit IEEE MAC address to the IEEE EUI-64 format is shown in FIG.

As shown in Fig. 2, the 48-bit MAC address is divided into two parts. The first 24 bits represent the "Company ID" (where the middle two bits are used for Global / Local and Individual / Group), and the remaining 24 bits are for each Company. Used for extension of. That is, it is used for purposes such as serial number of products made by each company to distinguish the product itself. The way to convert this to an EUI-64 bit address is to put a 16 bit dummy address in the middle. This dummy address is set to 0xFFFE in the middle. 2 shows this process diagrammatically.

UIM ID 32 bits can be defined similarly. In other words, the 32-bit itself can be divided into a part representing the Company and an extension part within the Company, and a method of creating a 32-bit dummy bit in the middle of converting it to 64-bit can be used. An additional consideration, however, is the decision of whether to indicate the Manufacturer's ID when displaying the UIM ID, as in the case of the MAC address, or whether to indicate the Operator identifier (ID) as requested by 3GPP2. You should also consider how to utilize Dummy Bits. In contrast, the present invention divides the existing 32-bit UIM ID into an operator ID area and a subscriber ID area subscribed to an operator, and the dummy 32-bit added to convert to 64-bit is 0xFF. And 0xFF, 0xFF, and 0xFE. However, the dummy 32 bits may be used as an area for displaying an extended value when the UIM ID area is extended later.

The present invention supports an effective mapping technique between UIM ID 32-bit ID and IPv6 128-bit address. This assumes the case of using the IEEE EUI-64 bit address used when referring to a globally unique interface in the IPv6 address structure. At this time, the basic idea of the conversion with reference to the process of Figure 2 to generate a 64-bit IPv6 EUI address using a 48-bit MAC address, the following additional considerations.

First, the 32-bit UIM ID is divided into an Operator ID field and a Subscriber ID field in the Operator, and the boundary can be determined in various ways. May be determined).

Second, a dummy bit added when converted from 32 bits to 64 bits is currently inserting 0xFFFFFFFE, but may be used as an area including information of an extended portion as the UIM ID expands in the future.

3 shows this conversion process. That is, the operator ID portion is mapped to the first half of the 64-bit EUI address, and the subscriber ID in the operator is mapped to the second half of the EUI address, and the middle portion is a dummy bit. Filled with Bit). However, the scheme in which the EUI 64-bit is configured may be variously combined. To this end, the mobile terminal must be equipped with a module in charge of conversion (20 in FIG. 4). However, the ID conversion module 20 generates an IPv6 address using the UIM ID of the UIM card 10. In other words, when converting the UIM 32 bits into an EUI-64 bit address, dummy 32 bits are added. In this case, the dummy bit area may be used for representing the extended information when the UIM ID bit is extended.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, when the IPv6 address is later assigned to the terminal, the IPv6 address of the terminal can be easily generated by utilizing the already mounted UIM ID.

Claims (6)

In the Internet address translation method in an integrated Internet Protocol (ALL-IP) terminal, A first step of dividing a known user identity module (UIM) identifier (ID) into an operator identifier (ID) region and a subscriber identifier (ID) region subscribed to the operator; And The second step of converting the separated operator identifier (ID) and subscriber identifier (ID) to an Internet Protocol (IP) address, and filling the remaining areas with dummy bits. Internet protocol address translation method in an integrated Internet protocol terminal comprising a. The method of claim 1, The Internet Protocol (IP) address is Substantially, the Internet protocol address translation method in an integrated Internet protocol terminal, characterized in that the 64-bit EUI (IP version 6) address. The method of claim 1, The UIM ID is, And a boundary between the operator identifier (ID) area and the subscriber identifier (ID) area is dynamically determined. The method of claim 1, The dummy bit area is, When the UIM ID is expanded, the Internet protocol address translation method in the integrated Internet protocol terminal, characterized in that it is utilized as an area including the information of the extended portion. The method according to any one of claims 1 to 4, The second step, A method for converting an Internet protocol address in an integrated Internet protocol terminal, comprising adding a dummy 32 bit when converting a UIM ID 32 bit into an EUI-64 bit address. In the Internet address translation device having a processor, A first function of classifying a known user identity module (UIM) identifier (ID) into an operator identifier (ID) region and a subscriber identifier identifier (ID) region subscribed to the operator; And A second function of converting the separated operator identifiers and subscriber identifiers into Internet protocol (IP) addresses and filling the remaining areas with dummy bits; A computer-readable recording medium having recorded thereon a program for realizing this.