Service parameter interworking method

[0001] (Technical field of invention)<u style="single">The present invention is described in the preamble of claim 1.</u>The service parameter network connection method, particularly the service parameter network connection method for exchanging service parameters between a network using a line-oriented protocol and a network using a packet-oriented protocol, and the computer system according to the preamble of claim 13. Regarding. [0002] (Technical background)<u style="single">In WO97 / 16007, it is possible to transmit telephone systems operated via a computer network, and calls from one computer to another within a packet exchange computer network, and further from a computer network to a public telephone network. The related control process is described. In addition, according to WO97 / 16007, intelligent network-based services can be added to calls generated through computer networks.</u>Today, network operators using packet-oriented protocols, such as Internet networks, UMTS networks, or ATM networks, typically provide customers with equal levels of service performance. Service categories or scales arise by regular price (individual-to-economic ratio) or connectivity (dial-up connection to rental line, etc.). [0003] However, in recent years, the increasing use of networks using packet-oriented protocols has led to a shortage of network capacity. At the same time, applications are emerging that demand significant improvements and guarantees of quality of service. [0004] As a result, service providers have found the need for customers to selectively apply for levels of service and meet the expectations of new customers. Achieving this goal can increase revenue through premium pricing and competitive differentiation of the services it offers, which can also support the expansion of existing networks. [0005] Today, most existing applications designed for networks that use packet-oriented protocols meet the quality of service available within networks that use packet-oriented protocols. In this situation, a service is understood to be a clear set or overall treatment of a customer's traffic, either on a network or on a subnet or between terminals. [0006] For example, services offered over the Internet, referred to as "best effort" services, make no guarantees regarding throughput, latency or other requirements. However, certain applications, such as IP technology and interactive games, provide the quality that users accept when the underlying network using packet-oriented protocols provides a given quality of service that is superior to "best effort." .. [0007] Therefore, there are different approaches to support scalable quality of service within networks using packet-oriented protocols, such as the Integrated Service Concept and the Partitioned Service Concept. [0008] The integrated services method is based on securing dedicated data stream resources. These resources are allocated to the application at a given time. Signals must be transmitted between each end for resource usage and bandwidth requirements. [0009] Further, as an alternative to the integrated service method, a compartmentalized service method based on different treatment of a plurality of traffic classes has been proposed. [0010] All packet transmissions within the simple class are aggregated by networks using packet-oriented protocols. It is intended here to avoid retaining and managing the data recorded for a single connection in order to reduce the load on the network nodes. In other words, the network guarantees quality of service for a class of data stream rather than a specific data stream. [0011] One problem with existing technologies is that the concepts outlined above for networks that use packet-oriented protocols are not currently used for networks that use packet-oriented protocols that are in contact with networks that use line-oriented protocols. Is. In other words, when connecting from a network using a line-oriented protocol to a network using a packet-oriented protocol and vice versa, for example, when starting an Internet dial-up connection from a VoIP gateway or circuit-switched environment, the service category determined by the user. It is impossible to have. [0012] Conversely, networks using line-oriented protocols such as PLMN, ISDN, PSTN, for example, require / requested / selected service categories installed on access servers, routers or gatekeepers (according to the ITU H.323 standard). Cannot be displayed. Therefore, it is not possible to define a service request via a network using a line-oriented protocol or vice versa for use within a network using a packet-oriented protocol. [0013] Yet another problem with existing technologies is that there is no mechanism to control prioritization and selected operations when connecting from a network that uses a line-oriented protocol to a network that uses a packet-oriented protocol and vice versa. is there. [0014] One possible deployment for such applications is, for example, the initialization of voice-over IP calls from mobile communication networks to networks using packet-oriented protocols. Preferably, a call, such as an emergency call, has a high priority and must be operated in an appropriate manner. Nevertheless, it is currently not possible to transmit this type of information from a network using a line-oriented protocol to a network using a packet-oriented protocol or vice versa. [0015] (Gist of the invention) In the above points, an object of the present invention is to realize transparent service parameter exchange between a network using a line-oriented protocol and a network using a packet-oriented protocol. [0016] According to the present invention, the object can be achieved by the method having the feature of claim 1. [0017] Therefore, in the service parameter network connection method, first, in the network connection node as the basis of service parameter exchange, the circuit switching service parameter is received from the network using the circuit-oriented protocol, or the packet switching service parameter is received by the packet-oriented protocol. Receive from the network using. The circuit-switched service parameters are then mapped within the corresponding packet-switched parameters and vice versa. Finally, the payload data is transferred between different networks using the mapping results. [0018] Therefore, according to the present invention, any line-oriented or packet-oriented protocol can be communicated without any special limitation as long as the mapping between service parameters by these protocols can be specified. [0019] Also, in the service parameter exchange method, the focus is on the actual service parameter exchange. Thus, according to the service parameter exchange method, the payload data can be transferred to the target network of the payload data without checking the availability of the service characterized by the mapped service parameters. On the one hand, this facilitates the service parameter exchange method and allows allocation to handle service requests with mapped service parameters within the target network. [0020] According to a preferred embodiment, circuit-switched service parameters define circuit-switched transmission and circuit-switched signal transmission of data, and packet-switched service parameters define packet-switched transmission and packet-switched signal transmission of data. Alternatively, the circuit-switched service parameters may define packet-switched transmission and circuit-switched signaling of the data. [0021] [0021] Therefore, according to the service parameter network connection method, data transmission on a network using a circuit-oriented protocol is executed by either circuit switching or packet switching. In other words, the present invention is applicable when the circuit-switched protocol is not only packet-switched but also at the upper layer of the circuit-switched network. [0022] According to another preferred embodiment of the present invention, circuit-switched service parameters by circuit-switched signaling define multi-level service information and / or bearer capability information. Preferably, the multi-level service information (MLPP, eMLPP) has priority information for assigning call priorities and / or preemptive information for high priority calls to occupy resources when there are no free resources. .. [0023] Therefore, a subscriber in a network using a circuit-oriented protocol such as PLMN is already inside a circuit-switched network in order to enable priority call processing in a network using a packet-oriented protocol such as an IP network. It will be possible to display the priority and preoccupation parameters being used. The same applies when connecting from a network using a packet-oriented protocol to a network using a line-oriented protocol. [0024] In yet another preferred embodiment of the present invention, the circuit-switched service parameter is a packet-switched service by setting a bit in the service-classified area of a data packet in order to classify the service in a network using a packet-oriented protocol. Mapped to a parameter. Preferably, the service segment area is an IPv6 traffic class octet or an IPv4 service area type. [0025] Preferred embodiments of the present invention fit particularly well with existing structures in networks using packet-oriented protocols. By mapping the service parameter information into the service segment area in the data packet header, the handling of the service segment request is delayed until the payload data packet to be processed actually arrives at the node in the network using the packet-oriented protocol. Can be done. Therefore, the mapping process in the service parameter network connection method becomes easy, and the labor required for implementation is reduced. [0026] According to another embodiment of the present invention, circuit-switched service parameters are mapped to packet-switched service parameters by reserving resources for service segmentation within the network using packet-oriented protocols. [0027] This embodiment of the present invention is particularly well suited when certain large volumes of payload data are required within a network using packet-oriented protocols. That is, resource reservation in a network using a packet-oriented protocol is particularly important when the network is operating at the capacity limit and the payload data transferred by the service parameter network connection method should be treated preferentially. In one such example, a network using a line-oriented protocol is a telephone call that is transferred into a network using a packet-oriented protocol, such as a payload transfer exchange within the Internet or ATM network in the case of voice over IP. Is operating. Other typical resource reservation applications occur in session flows during the transmission of multimedia data that require guaranteed quality of service. [0028] In a further embodiment of the invention, circuit-switched service parameters are mapped to packet-switched service parameters for service segmentation within a network that uses a packet-oriented protocol through protocol indicator exchange. [0029] Here, protocol indicator exchange relates to a method for transmitting data packets within a router. Protocol indicator exchange can simplify the forwarding function of a router by introducing a connection-oriented mechanism in a connectionless network that uses a packet-oriented protocol. In general, protocol indicator exchange can build routes or paths through networks that use packet-oriented protocols. Along this route or path, the router uses an identifier in the form of a label assigned to the data packet before forwarding and parses the packet header to determine which label exchange path to use. Once this is done, all subsequent nodes simplify the transfer of the data packet along the label exchange path identified through the label at the beginning of the data packet. Therefore, the service parameter internetwork connection method supports the connection-oriented principle involved in protocol label exchange in order to improve the transfer capacity of conventional routers in networks using packet-oriented protocols. [0030] According to other embodiments of the invention, mapping of service parameters is performed using at least one mapping label. Execution of different lines and packet-oriented protocols using a method based on interdependence between service parameters for networks using line-oriented protocols and networks using packet-oriented protocols, without modifying the implementation of service parameter exchange methods. It is possible to flexibly adapt the method. [0031] According to yet another embodiment of the present invention, the mapping of circuit-switched service parameters to the corresponding packet-switched service parameters can be modified during the transfer of payload data. [0032] Thus, according to the present invention, it is possible to consider different service parameters, for example during the call construction stage and subsequent calls. This is especially useful in cases such as changes in priority, changes in bearer capacity from, for example, transparent to non-transparent, as well as changes in data transmission ratios. Here, the change is made by a user calling the internetwork connection method, or an operator of a network using a line-oriented protocol or a network using a packet-oriented protocol. This requires the addition of some signal transduction, but the ability to modify service parameters while performing interprocessing allows, for example, different loads, either within a network using line-oriented or packet-oriented protocols. It enables flexible response to the situation. [0033] According to another embodiment of the invention, the service parameter internetwork connection method further has a stage of negotiating the mapping situation before the actual mapping begins. [0034] In the above, it has been described that the network connection method according to the present invention basically does not consider the correlation of services by the network using the line-oriented protocol or the packet-oriented protocol. Nevertheless, by providing the negotiation stage as described in the previous section, the subsequent exchange of unsupported service parameters in the related network is avoided, so that the overall processing is faster and the error ratio is reduced. Here, if the user of either network first sends out the service parameter to be exchanged, is the exchange of the service parameter really available in the internetwork connection method in terms of the service supported by the target network? To evaluate. If a particular service is not assisted, the internetwork connection method will indicate this to the user in need, who will then modify the exchange request accordingly. Therefore, a user requesting a service parameter exchange will immediately get feedback on the availability of the requested service within the target network and the payload data associated with the service parameter exchange will be appropriate within the target network. Avoid unoperated situations. [0035] Further, according to the present invention, the object outlined above is achieved by a computer system having the features of claim 13. [0036] Therefore, according to the present invention, a computer system is adapted to realize service parameter exchange between a network using a line-oriented protocol and a network using a packet-oriented protocol. The computer system has a storage node that stores the relationship between circuit-switched service parameters and packet-switched service parameters. In addition, the computer system has a network connection node for mapping circuit-switched service parameters to the corresponding packet-switched service parameters and vice versa. In addition, the internetwork connection node uses the generated mapping results to transmit payload data between different networks. [0037] Compile to multiple nodes, namely storage nodes and network connection nodes by dividing the Yutashisutemu, since the change in the mapping of service parameter exchange is easily supplied to the storage node without modification of the interworking node, Increased flexibility during service parameter exchange. [0038] According to a preferred embodiment of the invention, this is assisted through a parameter support node, especially to configure and supply the data to be mapped to the storage nodes of the computer system. [0039] Here, the parameter support node is either provided with the computer system or as a stand-alone remote control maintenance node. Alternatively, the parameter support node may be configured with the storage node in a remote manner, in which case the computer system that realizes the connection between the network using the line-oriented protocol and the network using the packet-oriented protocol is basically a network. It consists only of inter-connection nodes. In other words, the present invention allows for logical or physical partitioning of storage nodes, network connection nodes, and parameter support nodes, which is suitable for the exchange of service parameters and the transmission of payload data between different networks. Method. [0040] Depending on the complexity of the mapping, the parameter support nodes may be implemented by a databank system or an expert system. In particular, as the complexity of networks running line-oriented or packet-oriented protocols increases, experts can define a set of rules for this service parameter exchange as well as prepare the mapping table required for the service parameter exchange. The system-based method is convenient. This prevents the user sending the wrong service parameter exchange request from using undefined or unauthorized usage and mapping. [0041] (Preferable Examples of the Present Invention) Suitable examples of the present invention are described below. [0042] First, the basic inter-network connection method inherent in the deployment of different applications will be described with reference to Figures 1 and 2. Subsequently, different networks using the line-oriented protocol and the packet-oriented protocol, that is, various types of bearer capability information and multi-level service information on the network side using the line switching protocol, and further, various in the network using the packet-oriented protocol. The application of the novel inter-network connection method according to the present invention with respect to various types of service categories will be described. [0043] Typical examples of networks using line-oriented protocols are PLMN, ISDN; PSTN, GSM, and others. In addition, typical examples of service partitioning in networks using packet-oriented protocols are the use of partitioned service information areas, the application of the resource reservation protocol RSVP, and the application of Multiprotocol Label Exchange MPLS, which are described in more detail below. Discuss in. [0044] As shown in FIGS. 1 and 2, the service parameter network connection method according to the present invention generally realizes service parameter exchange between a network using a line-oriented protocol and a network using a packet-oriented protocol. As shown in Figures 1 and 2, either the circuit-switched service parameter or the packet-switched service parameter is received at the network connection node. In addition, the internetwork connection node is followed by an analysis phase that analyzes the capacity to accept submitted service parameters and inspects the service requests associated with the target network for mapping. If the transmitted line or packet-switched service parameters are not supported by a target network using a line-oriented or packet-oriented protocol, a negotiation step continues informing the user that the request for the service parameter network connection sent out is flawed. [0045] Here, the negotiation shown in FIGS. 1 and 2 informs the user of an acceptable service parameter network connection request in order to correct the requested service parameter. Alternatively, the user may pre-query the types of service parameters available on the network connection node so that the allowed service parameters can be checked before sending the relevant request to the network connection node. [0046] In another embodiment of the invention, negotiation takes place between the network connection node and, for example, the user's device, an application running on the user's device, or a network node in the source network, invisible to the user. [0047] As shown in Figures 1 and 2, after the service parameter exchange request has been sent, the analysis and final negotiations have been completed, the mapping results are used to send payload data between different networks. [0048] It should be noted here that references are created for either line-oriented or packet-oriented protocols for networks. This means that, according to the present invention, there will be a difference between the protocol used to run the network and the exchange technique used to run the line or packet-oriented protocol. [0049] Therefore, according to the present invention, the service parameter network connection method is a circuit-switched transmission of data. And circuit-switched service parameters that define circuit-switched signal transmission, and packet-switched service parameters that define packet-switched transmission and packet-switched signal transmission of data can be applied. The circuit-switched service parameter can also define packet-switched transmission of data when the network supporting the circuit-oriented protocol uses packet-switched technology. [0050] In the above, with reference to FIGS. 1 and 2, the general principle inherent in the novel service parameter network connection method of the present invention has been described. Next, with reference to FIGS. 3 to 5, a more specific example of exchanging service parameters will be described. Although reference is made to service categories that are adapted to a particular line or packet-oriented protocol, the invention is not limited by the detailed examples presented by these figures. [0051] First, the concept of service division of a network using a packet-oriented protocol is described below. Here, the service division is usually realized by supplying the service division area DS in the header of the data packet. [0052] As shown in FIG. 3, the segmented service DS area is used to realize the segmentation for a plurality of services. This partitioned service DS region, hereinafter referred to as the DS region, is divided into unused regions that are left for future expansion of the partitioned service code point DSCP and the partitioned service concept. [0053] Differentiated Services Code Point DSCP in DS Domain Per-Hob Behavior (PHB) Behavior) is a specific value used to select. The code point space is divided into multiple intervals for code point allocation and management. For example, the first section is reserved for standardization, the second section is provided for experimental and partial use, and the third section is if the first section is not used permanently. Used for standardization purposes. [0054] In particular, the Differentiated Services Code Point DSCP defines an externally observable transfer operation within the Division Service DS network node that is applied to the entire specific Division Service DS operation. [0055] In the above, a more general view of the segmented service was considered, but in the following, the realization of the segmented service within the Internet domain will be described in more detail. [0056] Increasing service segmentation to the Internet Protocol as a packet-oriented protocol allows the distinction of extensible services within the Internet without the need for per-flow signaling to each hob. Means. Usually, various segmentation services are made up of small, well-defined sets of blocks. [0057] Further, the partitioning service is an end-to-end communication type or an intra-domain type, and satisfies a numerical requirement such as a peak bandwidth or a relative performance requirement, for example, the operation of the entire partitioned service DS as described above. [0058] [0058] In general, a segmented service within the Internet is composed of the following combinations. 1. Set bits in the IP header area at Internet network boundaries, such as autonomous system boundaries, administrative boundaries within networks or hosts; 2. Use the bit to determine how an IP packet is sent by a node within an internet network; 3. Adjust the IP packets of interest at the Internet network boundary based on the requirements or rules of each segmented service. [0059] When applying the partitioning service to the Internet network, it is necessary to implement the partitioning service DS area using the available IP header area. Therefore, for the use of the IPv4 standard, the region is created with the TOS octet, and for the IPv6 standard, the traffic class octet is used as shown in Figures 4 and 5. [0060] Regardless of IPv4 or IPv6, each IP packet is marked according to the entire Partitioned Service DS operation to which it belongs, and then is handled within each node according to this entire Partitioned DS operation. In the network output interface of the IP network node, different queues exist and are treated with a predetermined priority. [0061] The entire normal segmented service DS operation is the perhob operation described above, which is a long-distance transmission and a short-distance transmission individually. In addition to the existing best effort mode, two different segmented service DS operations are currently defined. In particular, IP packets that fall into the long-range transmission class should pass through network nodes as quickly as possible. Theoretically, at most one packet for this entire compartmentalized service DS operation should be manipulated simultaneously within the network node. Packets for the entire compartmentalized service DS operation should always be treated in a predetermined manner. [0062] On the contrary, the packet of the entire DS operation of the compartmentalized service whose transmission is guaranteed stays in the queue of the network node for a long time. In addition, packets for the entire guaranteed transmission service DS operation are subdivided into subclasses characterized by the probability of dropping. That is, the probability that a particular packet will be dropped if another packet must be sent within a higher subclass. In other words, the probability of dropping a single IP packet will drop if the network is overloaded. [0063] Figure 4 shows in more detail how IPv4 services are partitioned based on the type of service TOS area in the associated packet header. Figure 4 shows the three flag bits, D for delay, T for throughput, and R for reliability, which clarifies which of these three features is considered to be the most important. [0064] Furthermore, with respect to the IPv6 data format shown in FIG. 5, a priority area called a traffic class octet is used to distinguish between data packets in which data flow is controlled and data packets in which data flow is not controlled. [0065] Here, priority values from 0 to 7 are reserved in case the transmission of data packets is delayed due to network overload. In addition, values 8 to 15 are reserved for real-time traffic such that the transmission ratio is constant even if all packets are lost. Video and audio are classified into the categories described below. [0066] In addition, within each group, data packets with lower priority values are considered less important than data packets with higher priority. The IPv6 standard proposes to use priority 1 for news, priority 4 for file exchange protocol FTP, and priority 6 for telnet connections, for example. [0067] Figure 5 also shows the flow label area in IPv6 data format. This allows data packet sources and data packet destinations to make temporary connections with special priorities and requests. For example, a data packet stream between a particular data packet source and a destination may have a compulsory delay request and thus require free bandwidth. In this case, the data flow is started in advance and free bandwidth and even specific indicators are assigned. If the data packet has a non-zero value in the flow label area, an internal table is used to inspect intermediate network nodes to see what special kind of handling is required. [0068] In the above, the service division area has been described with reference to FIGS. 3 to 5 as one option of the service division in the network using the packet-oriented protocol. Next, we refer to multiprotocol indicator exchange within ATM networks as another option for service segmentation within networks that use packet-oriented protocols, such as IP Internet networks through ATM backbone networks. [0069] To understand the multiprotocol label exchange MPLS principle, the transmission function of conventional routers in networks that use packet-oriented protocols is a capacity coupling process that is performed on a packet-by-packet basis in each router in networks that use packet-oriented protocols. Notice that is included. Here, the Multiprotocol Label Exchange MPLS Protocol employs another method by simplifying the transmit function within the router. That is, by introducing a line-oriented mechanism in a connectionless network that uses a packet-oriented protocol such as an IP network, a marker exchange path is set for each route or path through the network. [0070] Traditionally, routers along a router path parse the headers in a data packet to determine which indicator exchange path to use and add the relevant identification number to the packet in the form of an indicator for transmission to the next node. To do. Once this is done, all subsequent nodes simply send the data packet along the indicator exchange path recognized by the indicator in the header portion of the data packet. In this way, in the present invention, the inter-network connection of service parameters appropriately sets the multi-protocol indicator exchange identifier in order to transmit data along the indicator exchange path in the network using the packet-oriented protocol. [0071] Another embodiment of the present invention relates to a service segmentation based on the resource reservation protocol RSVP within a region of a network using a packet-oriented protocol. [0072] Resource reservation protocol RSPV is a communication protocol that sends signals to routers or network nodes to ensure bandwidth, for example for real-time transmission. The resource reservation protocol is assigned to establish a connection path for video and audio traffic, eliminating disturbing skips and delays. The reason for supplying the resource reservation protocol is that video and audio traffic is expected to increase within the realm of the Internet. [0073] The concept of service classification for networks using packet-oriented protocols has been discussed above. In the following, related concepts will be discussed for networks that use line-oriented protocols. [0074] Standards for service categories within networks using line-oriented protocols, such as those described below, have been standardized through the International Telecommunications Advisory Board CCITT and the European Telecommunications Standards Institute ETSI. [0075] One standard is the Q.85 and I.255.3 recommended values for multi-level priority ISDN, and the CCITT recommended Q.85 and I.255.3 preoccupation (MLPP) services are prioritized call operation services. I will provide a. This service has two parts: priority and preoccupation. The priority assigns the priority level of the call. Preemption is related to the occupancy of resources used in low priority calls, where high level priority calls occupy resources when there are no free resources. Users in the network that do not support this service are not affected by this service. [0076] The MLPP service is offered as a provider's choice in the field of networks using line-oriented protocols in the field of networks using line-oriented protocols. The field is an entire or part of a network that uses line-oriented protocols. The MLPP service is applied to all network resources within this area, which is a common use area. The highest priority level of the subscriber is determined at the time of subscription by the service provider based on the needs of the subscriber. Subscribers can select a priority level within the maximum priority level for each call. [0077] Preoccupation can take one of two forms. First, call recipients may be overcrowded and unreachable on low-priority calls. This is because the low priority call area must be preoccupied in order to complete the high priority call from the call sender. Second, networks that use line-oriented protocol resources are congested if some calls have a lower priority than the call requested by the call sender. One or more of these low priority calls are preempted to complete the high priority call. [0078] A call can be interrupted at any time after the call priority level has been set and before the previous call ends. [0079] The MLPP service is not intended to provide preemption for users who do not subscribe to the MLPP service. The service provides occupancy for calls within the MLPP field consisting of resources belonging to users who subscribe to the MLPP service. In other words, calls made or received by non-MLPP users are not preempted. Calls made by MLPP subscribers are preempted by high priority calls only within the network that supports this service. [0080] [0080] Another example of service classification is recommended in GSM 02.67. [0081] The improved multi-level priority and predecessor service (eMLPP) from version 5.0.5 of GSM02.67 provides different levels of priority for call readiness and call continuation in the case of handover. eMLPP can also be applied in the case of rooming if supported by the associated digital cellular mobile network. [0082] The highest priority level of the subscriber is determined by the service provider at the time of subscription, based on the needs of the subscriber. The subscriber can select the priority level within the maximum priority level for each call. [0083] There are up to 7 priority levels. The two highest levels are reserved for use inside the network, such as configuring network-related services for emergency calls or specific voice broadcast or voice group call services. These two levels are used only locally. That is, it is used only in the field of one mobile exchange center MSC. The other five priority levels are provided to the subscriber and, if supported by all relevant network elements, can be applied globally, for example inter-exchange trunks, as described in Section 3.1. It can also be applied to network connections with ISDN networks that provide MLPP services. [0084] These seven priority levels are defined below. A (highest value, for use inside the network); B (for internal use of the network); 0 (for subscribers); 1 (for subscribers); 2 (For subscribers); 3 (for subscribers); 4 (minimum, for subscribers); Levels A and B are mapped to level 0, which receives preferential treatment outside the mobile exchange center MSC area to which this applies. [0085] Further, in contrast to the priority call, in the digital cellular mobile network, when the call preparation on the wireless interface or the GSM network side or the handover of the priority call to the congested call is in a congested state, the call with high priority is performed. It may preempt low-priority calls that are currently in progress. If preparation for a call requires preemption of another in-progress call, the call should be prepared with performance that exceeds the prescribed call preparation time, and the connection should be completed as soon as possible. [0086] The call can be preempted at any time after the call priority level is established and is initiated before the call is canceled. Preemption is performed only to provide priority to priority levels with preemptive capabilities assigned by the network operator. Priority levels that do not have preemptive ability only have standby priority. [0087] In the above, some examples of service divisions for networks using packet-oriented protocols, namely the partitioned service area DS, resource reservation protocol RSPC and Multiprotocol Label Exchange Protocol MPLS, and some service divisions for networks using line enforcement protocols. The example of, that is, eMLPP and Multi-level service information by MLPP was explained. The following is a brief summary of the concept of bearer capability that is considered when exchanging service parameters. [0088] Here, the bearer capability information defines the physical capability of the network using the line-oriented protocol, for example, according to the digital cellular mobile network standard GSM or the integrated services digital network ISDN. For example, the different bearer service capabilities defined by the ITU for ISDN are 64 kbps data transmission, unrestricted, 8 kHz structure, 64 kbps, 8 kHz structure, 64 kbps, 8 kHz structure that can be used for voice information transmission, It can be used for 3.1kHz voice information, etc. [0089] From the perspective of the general concepts discussed for networks using packet and line-oriented protocols, several mapping examples are shown below in the form of mapping tables. [0090] The first mapping table shows the mapping of eMLPP by the digital cellular mobile communication network GSM on the priority area according to the IPv4 Internet standard. Here, the priority may be used by a router as shown in FIG. 8, for example, to determine the order in which data packets are dropped in the event of congestion. [table 1]<img file="JP4889174B2_D0001.tif" />[0091] In addition, the following example relates to the mapping of the same eMLPP mobile cellular communication network standard GSM on a header structure suitable for the IPv6 standard. [Table 2]<img file="JP4889174B2_D0002.tif" />[0092] The table above shows the mapping to priority regions, while the same mapping implements the flow label region used to prepare for temporary connections at a particular priority in such requests. [0093] Here, the values 0 to 7 are reserved for communication that can reduce the communication speed in the case of network congestion. In addition, values 8 to 15 are reserved for real-time traffic that maintains a constant transmission ratio even if all packets are lost. [0094] The lower numbered packets in each group are less important than the higher numbered packets. It should be noted that individual packets have different priorities. Therefore, the mapping mechanism shown in the second table above is used for communication when the importance of individual data packets is different, in which case the eMLPP value is used for the data packet as well as the specific priority value. Priority area is also defined. [0095] The table below shows other examples of high-speed call preparation. [Table 3]<img file="JP4889174B2_D0003.tif" />[0096] Here, the high-speed preparation as specified in the eMLPP standard may be used in the access router to determine the dedicated high-speed track route on which the routing extension header by the IPv6 standard is used. In this routing, consider a router R as shown in Figure 8 to identify one or more routers to pass to the destination. Here, both complete routing, where the complete path is provided, and simple routing, which is provided only by the selected router, can be considered within the framework of the present invention. Routing rigor usually depends on a set of priority levels. [0097] The table below shows an example for eMLPP mapping on the IPv4 Internet standard. [Table 4]<img file="JP4889174B2_D0004.tif" />It should be noted here that a value of 1 for the type of service parameter means that the corresponding priority is important for the flow of calls and / or data packets. [0098] Another example of mapping transparency within a network using a line-oriented protocol on a flow label according to the IPv6 Internet standard is summarized in the table below. [Table 5]<img file="JP4889174B2_D0005.tif" />The transparency according to the above table will be described below. 1. Transparency: non-flow control and non-error control; 2. Transparency: Flow control and error control [0099] Here, the flow label area according to the IPv6 standard is used to provide a connection-oriented service in a packet-switched Internet IP network. Here, flow control is used to perform routing within a packet-switched IP network. That is, the flow label input is connected to the output route. In other words, routing is not based on the IP address, including the IP header. For non-transparent data calls, IPv6 standard flow labels are used to achieve a constant data ratio due to virtual circuits and free bandwidth. In addition, flow labels are used for voice-over IP, VoIP, and spoken bearers that are converted to calls. [0100] The final example concerns the setting of delay and throughput indicators by the IPv4 standard for transparent data bearers or voice bearers. In other words, this example shows how the throughput importance displayed by the type of service area to the IPv4 Internet standard is set and differs within the relevant IP network for relatively high user ratios, as shown below. Indicates whether it will be used by the router. [Table 6]<img file="JP4889174B2_D0006.tif" />[0101] Another example according to the invention is an internetwork connection with the reservation protocol RSVP that provides the information needed to make a reservation request to the network. This includes displaying the quality of service required for the QoS control service and the parameters required for this service. [0102] Figure 6 implements the connections described above between networks based on line-oriented protocols such as PLMN, ISDN, PSTN and networks using packet-oriented protocols such as IP, ATM, and UMTS that reference service segmentation information. The basic structure of the network connection computer system suitable for this is shown. [0103] As shown in FIG. 6, the service segment network connection computer system is, for example, a network using a packet-oriented protocol with multi-level service information MLPP, eMLPP, and / or bearer capability information used in a network using a line-oriented protocol. It has a storage node 12 that stores the mapping table discussed above, such as the relationships between the relevant service classification information used within. [0104] The inter-network connection computer system 10 is a multi-level service information transmitted from a network using a line-oriented protocol into relevant service classification information suitable for use in a network using a packet-oriented protocol, or vice versa. And / or has a network connection node 14 suitable for mapping bearer capability information. [0105] As shown in FIG. 6, the storage node 12 of the computer system 10 is provided with the parameter support node 16 for supplying or configuring mapping data. Here, the parameter support node 16 may be provided together with the computer system, or may be provided as an independent remote control management node. Alternatively, the parameter support node 16 may be configured together with the remote control method storage node 12 so that the computer system 10 is composed of only the network connection node 14. [0106] In other words, the present invention enables logical and physical partitioning of computer systems with storage nodes 12, network connection nodes 14, and parameter support nodes 16 to enable service parameter exchange and payload data transmission between different networks. Suitable for [0107] Moreover, depending on the complexity of the mapping, the parameter support node 16 is implemented using either a database or an expert system. Here, as the complexity of networks operating with either line-oriented or packet-oriented protocols increases, the method based on expert systems is not only a set of all required mappings, but also a set of routes for service parameter exchange. It is convenient in that it enables. [0108] The computer system having the structure shown in FIG. 6 realizes the network connection method according to the present invention as outlined above for FIGS. 1 and 2 as general shapes, further different mapping examples and the above-mentioned mapping table. Suitable for [0109] Further, as already reviewed, the inter-network connection node 14 is suitable, for example, to change the service parameter mapping during the current call or call preparation. In general, service segment transparency is achieved between line and packet-oriented signaling protocols based on control determined by users, applications, operators and / or networks. Moreover, usually within a network node, the transmission of data packets is generally based on the fact that all data packets belonging to the same session have the same execution level requirements. In addition, some data packets are more important for compressed data such as MPEG, thus requiring higher execution levels. [0110] A further variant of the operation at the network connection node is transmission and signal transduction by UMTS based on ATM and / or IP. Furthermore, UMTS may use a line-oriented protocol such as ISUP, which basically means that either a line-oriented or packet-oriented service segmentation mechanism may be used. [0111] Further, another variation of the inter-network connection node and related inter-network connection method according to the present invention relates to negotiations performed between the inter-network connection node and a service parameter exchange request submitted by the user. If mapping is not possible because the data inputs and / or outputs are not defined in the mapping table, there are several possible examples. Another example is the case where the service division is realized only by the inter-network connection node. For example, packet-switched networks do not have a service division mechanism. In this case, whether the request should be routed directly over a network using the packet-oriented protocol or request rerouting of the request over another network to guarantee the associated service / execution level. Negotiate with the requesting user. Alternatively, the negotiation is transparent to the user between the internetwork node and, for example, the user's device, or an application running on the user's device, or the source network node or intermediate network. [0112] FIG. 7 shows an example of one application for the computer system shown in FIG. A computer system is realized as a media gateway between a network using a line-oriented protocol and a network using a packet-oriented protocol. As outlined above, within networks using line-oriented protocols, the actual transmission of data takes place through packet-switched data transmission, such as from GSM to GPRS. [0113] As shown in FIG. 7, the mobile station MS initiates a control signal to the media gateway controller, which sends a request for service parameter exchange to the signaling gateway 20 and further connects to the media gateway 22. Here, the network connection node correlation mapping unit and the storage node 12 are assigned to the signal transmission gateway 20, while the transmission functionality of the network connection node 14 shown in FIG. 6 is assigned to the media gateway 22. [0114] As shown in FIG. 7, once the payload data is supplied to the media gateway 22 by the mobile station, the data packets are sent to the network using the packet-oriented protocol for further processing by the router R. [0115] As shown in FIG. 7, once the data packet is output through the media gateway 22, the operation of the data packet is no longer under the control of the media gateway 22, and the operation of the data packet after output is completely mapped. Determined through service classification information defined by the process. [0116] The work of the media gateway 22 shown in FIG. 7 is a payload, for example, from a coded voice PCM in an STM synchronous transmission mode network to a coded voice GSM in an ATM asynchronous transmission mode network or vice versa. By converting between different formats, it only performs the transmission of the payload. In addition, the signaling gateway performs conversions between different signaling protocols, such as from ISUP to H.323 or vice versa. [0117] Other examples of the present invention are shown below with reference to FIG. [0118] Figure 8 shows, for example, a call from the network PLMN that uses a line-oriented protocol to realize an Internet connection in which the bearer capability and preoccupation are mapped in the network connection computer system 10 corresponding to the service bit type of the IPv4 header. Showed preparation. [0119] As shown in Figure 8, mapping is achieved, for example, by local exchange within a mobile exchange center MSC or other PSTN / ISDN network, as well as access servers, within router R of IP networks, IP gateways, gatekeepers, etc. Achieved elsewhere. In other words, all these elements have the inter-network connection computer system outlined above with respect to FIG. Here, the mobile exchange center serves to send mobile-oriented calls within the PLMN network, the access server is designed for specific applications, and the router R is suitable for packet-switched IP environments. Gateways are provided to conform to protocols, especially voice-related protocols, and gatekeepers support multimedia-oriented voice-over IP. [0120] When the service division information is executed within the access server, the access server receives the bearer capability information and the eMLPP information from the mobile exchange center via an external or internal signal transduction protocol. As described above, the access server uses the mapping table to determine the relevant service classification information based on this information. This is written in the packet header of the IP network, as described in more detail below. [0121] Another option is to enable the media gateway controller to use bearer capability and eMLPP and MLPP services with media gateway preparation and SS7 signaling defined for network connectivity between SS7 and the Internet network. is there. It is used, for example, to display the requested service classification on the corresponding media gateway of the mobile exchange center MSC / VLR, for example in the form of a media gateway control protocol. [0122] Here, the media gateway control protocol allows the allocation request of the corresponding media switching device in the media gateway. It also contains the corresponding message of service classification information. The media gateway may use the priority information, for example, to assign the device to another subscriber. In addition, the media gateway may include a service classification mapping table. In addition, the mapping table is stored within the signaling gateway. In this case, the signal transmission gateway needs a mechanism for displaying the service classification information corresponding to the media gateway. The media gateway control protocol transmits the corresponding control information to the signal transmission gateway at which the signal transmission conversion is performed. [0123] If the mobile subscriber is registered as an eMLPP subscriber in the corresponding mobile cellular communication network, will the subscriber send the eMLPP value in preparation for the call or use the corresponding default value in the location update? Either. In addition, the digital cellular mobile communication GSM bearer capability is transmitted to the source mobile exchange center MSC. Bearer capabilities are also modified by the subscriber during the current call or by handover within the cellular mobile communications network. [0124] Within the Mobile Service Center MSC, the eMLPP value is analyzed and returned to the mobile subscriber if possible. The bearer ability is also analyzed and returned to the mobile subscriber if possible. [0125] To set the corresponding parameters for the partitioning service or as defined by the reservation protocol RSVP, the mobile exchange center sends the preferred information displayed in the eMLPP value, for example, to the preferred region of the IPv4 header. Map. [0126] In addition, bearer capabilities are used to place segmented service code points according to the IPv6 standard or the corresponding D, T, and R-bits within the type of service area according to the IP4 Internet standard. [0127] The service area type is mapped from the following digital cellular communication network GSM bearer capabilities. -Voice or transparent data service-&gt; T and D bit sets; -Non-transparent data service-&gt; R bit set. This information is used within the packet-switched Internet network identified for the relevant segmentation service. [0128] According to the present invention, a particular mapping from a network using a line-oriented protocol to a network using a packet-oriented protocol is clearly applied in another direction, such as from within a packet-switched Internet network to a network using a line-oriented protocol. it can. [0129] Although the present invention has been discussed above for a particular packet header format, it is clear that in the present invention described above, the use of any compartmentalized service area can be considered within the framework of the invention, regardless of its definition. .. [0130] More and more protocols are executed in networks that use line-oriented protocols, such as ISUP, and networks that use packet-oriented protocols, such as ISUP, which is superior to IP. It also means that the case where the mapping means operates between different signaling and IP load routing mechanisms for a network based on two packets also falls within the framework of the present invention. [0131] The above description includes a number of mapping tables as illustrated. The values in the table are suitable examples, but may be changed appropriately or as required for each application, and are not limited to this description. [Simple explanation of drawings] Suitable examples of the present invention are described with reference to the following figures. FIG. 1 is a flowchart for a service parameter network connection method according to the present invention. FIG. 2 is another flowchart for the service parameter network connection method according to the present invention. FIG. 3 shows the structure of a service division area. [Fig. 4] Fig. 4 shows the structure of the service area type by IPv4. FIG. 5 partially shows the header structure of an IPv6 data packet. FIG. 6 is a schematic diagram for a computer system conforming to the service parameter exchange according to the present invention. FIG. 7 shows the application of the inventive inter-network connection method in the media gateway according to the present invention. [Fig. 8] FIG. 8 shows an application example of the present invention, in which a call started from a mobile station is initialized in a GSM network using a line-oriented protocol, and then transmitted to an IP network such as a voice over IP call. Is shown.