KR101335003B1 - System and method for multiplexing data transmission path, and apparatus applied to the same - Google Patents

Abstract

The present invention discloses a data transmission path multiplexing system and method, and an apparatus applied thereto. In the data transmission path multiplexing system according to the present invention, when the mobile communication network is composed of a first data transmission path and a second data transmission path for mobile communication call processing, the data transmission apparatuses for achieving each transmission path belong to a group to which they belong. It is implemented to carry data on its own path and other groups of data together through a link corresponding to the data transmission path. Accordingly, the present invention achieves multiplexing of a data transmission path based on a basic link structure that allows data corresponding to a plurality of transmission paths to be transmitted together through a single physical link. This can prevent interruption of signaling and traffic delivery of the entire service.

Multiplexing, Data Transfer, Link

Description

SYSTEM AND METHOD FOR MULTIPLEXING DATA TRANSMISSION PATH, AND APPARATUS APPLIED TO THE SAME

The present invention relates to a data transmission path multiplexing system and method, and an apparatus applied thereto, and more particularly, to multiplex and transmit data for call processing in a mobile communication network through a plurality of transmission paths. The present invention relates to a data transmission path multiplexing system and method, and an apparatus applied thereto, for enabling transmission of data corresponding to multiple transmission paths together through a physical link.

European Telecommunications Standards Institute (ETSI) for the purpose of creating detailed specifications such as third-generation Global System for Mobile communications (GSM) networks and wideband code division multiple access (WCDMA) access technologies and terminals , The Association of Radio Industries and Businesses / Telecommunication Technology Committee (ARIB / TTC) in Japan, the Accredited Standards Committee T1-Telecommunications (T1) in the United States, and the Telecommunications Technology Association (TTA) in Korea are the Third Generation Partnerships. Project, hereinafter abbreviated as 3GPP), is developing a mobile communication system that can provide multimedia services such as voice, video and data in mobile communication environment.

3GPP supports the activities of five Technical Specification Groups (hereinafter abbreviated as TSG) for fast and efficient project operation and technology development, and each TSG has a set of standards related to the assigned area. Responsible for development, approval, and management. Among them, the Radio Access Network (hereinafter, abbreviated as RAN) group aims to define a new mobile communication access network in a third generation mobile communication system, and includes a terminal and a Universal Mobile Telecommunications Network Terrestrial Radio Access Network; Hereinafter, the specification for the functions, requirements and interfaces of UTRAN) will be developed.

The TSG-RAN Group consists of a Plenary Group and four Working Groups. Working Group 1 (WG1) develops standards for the physical layer (first layer), while the second working group (WG2) is the data link layer (second layer) and network layer (third layer). Define the role of In addition, the third operation group (WG3) defines the standards for the interface between the base station, the mobile network controller (hereinafter referred to as RNC) and the core network in the UTRAN, and the fourth operation group (WG4). This paper discusses the requirements for mobile link performance and the requirements for radio resource management.

The UTRAN consists of one or more Radio Network Sub-systems (hereinafter referred to as RNS), and each RNS consists of one Radio Network Controller (RNC) and one or more base stations (Node B). It is composed.

In addition, the mobile communication network controller is connected to a terminal switching center (MSC: Mobile Switching Center (MSC), hereinafter abbreviated as MSC) located in a core network for circuit-switched communication with a GSM network, and packet exchange with a GPRS (General Packet Radio Service) network. It is connected to a Serving GPRS Support Node (SGSN) for communication.

Each base station (Node B) is managed by a corresponding mobile communication network controller (RNC) of the UTRAN to receive information from the physical layer of the terminal on the uplink (Uplink), and transmits data to the terminal on the downlink (Downlink) It acts as an access point.

The mobile network controller is responsible for the allocation and management of radio resources. The mobile network controller, which is in charge of direct management of the base station Node B, is called a control RNC, and is responsible for the management of common wireless resources. A mobile communication network controller that manages dedicated radio resources allocated to each terminal is called a serving RNC.

Here, the control RNC and the responsible RNC may be the same, but when the terminal moves out of the area of the responsible RNC to the area of another RNC, the control RNC and the responsible RNC may be different. In addition, the RNS in which the responsible RNC is located is called a responsible RNS.

In the existing mobile communication network, signaling and traffic are handled in an IuCS (Interface UMTS Circuit Service) or IuPS (Interface UMTS Packet Service) path for processing voice calls. There is a problem that the service is interrupted due to the failure of the physical link due to the use of the physical link dedicated to IuCS, IuPS.

In other words, by processing one type of signal and traffic of IuCS or IuPS on a single physical link, if a link error occurs on a single physical link, all corresponding mobile communication services cannot be processed, and users' complaints As the cause is caused, a method for coping with this is required.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to multiplex and transmit data for call processing in a mobile communication network through multiple transmission paths. The present invention provides a data transmission path multiplexing system and method for transmitting data corresponding to a plurality of transmission paths together, and an apparatus applied thereto.

In addition, another object of the present invention is to change the protocol stack for the data corresponding to the other transmission path to transfer the data corresponding to multiple transmission paths on a single physical link, the protocol in the transmission path to be transmitted The present invention provides a data transmission path multiplexing system and method for fitting to a stack, and an apparatus applied thereto.

A data transmission path multiplexing system including a circuit service path and a packet service path for call processing of mobile communication according to the first aspect of the present invention for achieving the above object includes circuit data and packets for each link section on the circuit service path. And a circuit data link unit for transmitting and receiving data and a packet data link unit for transmitting and receiving the circuit data and the packet data for each link section on the packet service path.

Preferably, the circuit data link unit links to a Vcc (Virtual Channel Connection: Asynchronous Transfer Mode (ATM) virtual channel connection, hereinafter Vcc) link setting for the circuit data and the packet data. The connection between the sections is made, and the packet data is changed to a protocol stack corresponding to the circuit service path to transmit and receive.

Preferably, the packet data link unit establishes a connection between the link period by setting the circuit data and the Vcc link for the packet data, and changes the circuit data to a protocol stack corresponding to the packet service path.

In addition, the data link device according to the second aspect of the present invention for achieving the above object, other than the transmission target data transmitted through the transmission path of the target section of the plurality of transmission paths for the call processing of the mobile communication network After allocating the distributed channel for the data of the path, the lower link unit for transmitting through the transmission path of the target section, the call execution for each channel connected to the lower link unit of the data of the transmission target and the other transmission path An intermediate link unit for receiving data and transmitting the data to the upper link in link connection and an upper link unit for receiving data of the transmission target and data of the other transmission path through a link connection corresponding to the transmission path of the target section. Characterized in that.

Preferably, the data link device further includes a main processor unit for collecting integrated data after collecting the data transmitted through the transmission path and the other transmission path of the target section.

Preferably, the lower link unit changes the data of the other transmission path to a protocol stack corresponding to the transmission path of the target section and transfers the data to the intermediate link unit.

Preferably, the change of the protocol stack is a layer change of an AAL (ATM Adaptation Layer; AAL) corresponding to the other transmission path to an AAL corresponding to the transmission path of the target section.

Preferably, the intermediate link unit determines whether the link between the upper link unit and the upper link located on the other transmission path while continuing the channel for data transmission with the lower link unit through the call execution. It is characterized by.

Preferably, when the intermediate link unit is not connected to the upper link unit as a result of the determination, the intermediate link unit transfers the data of the transmission target and the data of the other transmission path to the upper link located on the other transmission path. It is done.

Preferably, the main processor unit determines whether a link failure of the lower link unit, the intermediate link unit and the upper link unit according to whether or not through the data for each link point on the transmission path of the target section.

Preferably, when the main processor unit receives the data of the transmission target and the data of the other transmission route through the transmission path of the target section and the other transmission path, respectively, the duplicated data is treated as the same single data. It is characterized by processing.

In addition, the data link device according to the third aspect of the present invention for achieving the above object, Vcc for the circuit data delivered through the circuit service path for the call processing of the mobile communication network and the packet data delivered through the packet service path After allocating a link channel, a lower link unit for transmitting through the circuit service path and a call execution for each channel connected to the lower link unit receive the circuit data and the packet data to an upper link in link linkage. And an intermediate link unit for forwarding and an upper link unit for receiving the circuit data and the packet data through a link connection corresponding to the circuit service path.

Preferably, the lower link unit changes the packet data into a protocol stack corresponding to the circuit service path and transfers the packet data to the intermediate link unit.

Preferably, the intermediate link unit determines whether a link is connected to the upper link unit and the upper link located on the packet service path while continuing a channel for data transmission with the lower link unit through the call execution. It is characterized by.

In addition, the data link device according to the fourth aspect of the present invention for achieving the above object, Vcc for the circuit data delivered through the circuit service path for the call processing of the mobile communication network and the packet data delivered through the packet service path After allocating a link channel, a lower link unit for transmitting through the packet service path and a call execution for each channel connected to the lower link unit receive the circuit data and the packet data to an upper link in the link connection. And an upper link unit for receiving the circuit data and the packet data through an intermediate link unit for forwarding and a link connection corresponding to the packet service path.

Preferably, the lower link unit changes the circuit data to a protocol stack corresponding to the packet service path and transfers the data to the intermediate link unit.

Preferably, the intermediate link unit determines whether the link between the upper link unit and the upper link located on the circuit service path while continuing the channel for data transmission with the lower link unit through the call execution. It is characterized by.

In addition, the data transmission path multiplexing method according to the fifth aspect of the present invention for achieving the above object, in addition to the data of the transmission target transmitted through the transmission path of the target section of the plurality of transmission paths for the call processing of the mobile communication network After allocating distributed channels for data of different transmission paths, a sublinking step for transmitting data through the transmission path of the target section, call execution for each channel connected to the lower link unit, and the data of the transmission target and the other transmissions Integrated call processing by receiving data of the transmission target and data of the other transmission path through an intermediate link step for receiving data of a path and transferring it to an upper link that is connected to a link and a link connection corresponding to a transmission path of the target section. It characterized in that it comprises a call processing execution step.

Preferably, the data transmission path multiplexing method further comprises a link fault determination step for determining whether a link fault occurs in the intermediate link and the upper link.

Therefore, in the present invention, by multiplexing the data transmission path based on the basic link structure that enables the transmission of data corresponding to a plurality of transmission paths together through a single physical link, it is possible to perform more than a link in a certain part section. Due to this, there is an advantage in that signaling and traffic delivery of the entire service can be prevented from being interrupted.

Hereinafter, a preferred embodiment of a data transmission path multiplexing system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a data transmission path multiplexing system according to an embodiment of the present invention. As shown by way of example only in FIG. 1, the data transmission path multiplexing system transmits at least two or more of a first data transmission path, a second data transmission path, and an Nth data transmission path through which data for call processing of a mobile communication is transmitted and received. A mobile communication network including a path, a first data transmission device group 100 for forming a first data transmission path, a second data transmission device group 200 for forming a second data transmission path, and an Nth data transmission path N-th data transmission device group (not shown) to achieve the data, each of the data transmission devices of each of the group of the other group, as well as the data transmitted and received through its own data transmission path It also transmits data sent and received through the transmission path.

Here, data transmission paths constituting the mobile communication network are very diverse. Hereinafter, the first data transmission path and the second data transmission path will be described in detail for further description.

The device group 100 constituting the first data transmission path has previously allocated all Vccs that are switching basic units in the formation of a channel for data transmission corresponding to the first data transmission path, but in the present invention, the first data transmission path Allocate half of the Vccs corresponding to the first data transmission path among the allocable Vccs on the network, and allocate the remaining Vccs corresponding to the second data transmission path, and then, together with the data of the first data transmission path through each Vcc, 2 Channel connection with each Vcc of the lower link unit 130 and the lower link unit 130 for transmitting data of the data transmission path together to receive the data of the first data transmission path and the data of the second data transmission path together. The intermediate link unit 120 transmits the received data to the upper link, and the data and the second data of the first data transmission path from the intermediate link unit 120. Receiving with the data in the transmission path includes a top link portion (110).

Meanwhile, the device group 200 constituting the second data transmission path allocates all Vccs, which are basic switching units for channel formation, to correspond to the second data transmission path. However, in the present invention, the device group 200 may be allocated on the second data transmission path. After allocating half of the Vccs corresponding to the second data transmission path among the Vccs, allocating the remaining Vccs corresponding to the first data transmission path, and transmitting the first data together with the data of the second data transmission path through each Vcc. Receives the data of the second data transmission path and the data of the first data transmission path together by channel connection with each Vcc of the lower link unit 230 and the lower link unit 230 for transmitting data of the path together. The intermediate link unit 220 for transferring data to the upper link, and the data of the first data transmission path and the data of the second data transmission path from the intermediate link unit 220. The upper link unit 210 is provided with the data.

Furthermore, the device group 100 constituting the first data transmission path or the device group 200 constituting the second data transmission path collects data transmitted through the first data transmission path and the second data transmission path. The processor may further include a main processor unit (not shown) for executing integrated call processing based on the collected data.

FIG. 2 is a conceptual diagram of multiplexing for a data transmission path in some sections shown in FIG. 1. As shown by way of example only in FIG. 2, in one embodiment, the first data transmission path is an Interface UMTS Circuit Service (IuCS) path and the second data transmission path is an Interface UMTS Packet Service (IuPS) path. It is assumed to be a 'IuPS' path.

In addition, the device group 100 constituting the first data transmission path includes a lower link unit 130 having an RNC, an intermediate link unit 120 having an ATM Multimedia Switching System (MSS), and an MSC. For example, the upper link unit 110 includes / MGW (Media Gateway, MGW hereinafter).

Similarly, the device group 200 forming the second data transmission path also includes a lower link unit 230 having an RNC, an intermediate link unit 1220 having an ATM MSS, and an upper link unit 210 having an SGSN. It is taken as an example.

Here, the first data is transmitted through the second data transmission path as well as the data of the IuPS path, which is the second data transmission path, together with the data on the first data transmission path through the IuCS path, which is the first data transmission path. The data of the second data transmission path may be transferred together with the data of the path.

Accordingly, the following description will focus on a process of simultaneously transferring data of the first data transmission path and data of the second data transmission path through the first data transmission path.

The lower link unit 130 of the first data transmission path not only uplinks data transmitted and received exclusively in the first data transmission path to the intermediate link unit 120 through a single physical link, but also the second data transmission path. In order to uplink data transmitted / received to the intermediate link unit 120 via the first data transmission path, the intermediate link unit 120 is changed to a protocol stack corresponding to the IuCS path, which is the first data transmission path. Link up.

In addition, the types of protocol stacks to be modified include the RANAP (Radio Access Network Application Part, hereinafter RANAP), and the ALCAP (hereinafter, referred to as ALCAP) protocol.

Thereafter, the intermediate link unit 120 also receives data of the second data transmission path along with data of the first data transmission path through a single physical link path called the first data transmission path, and then re-connects the upper link unit 110. ).

Here, the intermediate link unit 120 calls itself for channel connection with each Vcc of the lower link unit 130 in case a control message for channel setting is not received from the upper link unit 110. Next, a call for connecting the channel with each Vcc of the lower link unit 230 of another path is executed. This concept will be referred to as distributed calling.

Referring to distributed calling by taking an example in which a link failure occurs in the upper link unit 110, the intermediate link unit 120 may itself be connected to the lower link unit 130 or the lower link unit 230 in another path. After the call for channel connection is performed, the data of the first data transmission path and the data of the second data transmission path are received together from the lower link unit 130 or the lower link unit 230 of another path.

Thereafter, the intermediate link unit 120 receives the first data transmitted to the upper link unit 210 located on the second data transmission path due to the failure of the upper link unit 110 located on the first data transmission path. The data of the transmission path and the data of the second data transmission path are transferred together.

Accordingly, it is possible to prevent all transmission path services from being interrupted due to a link failure at any part.

FIG. 3 is a diagram illustrating a protocol improvement method according to multiplexing of data transmission paths in some sections shown in FIG. 1 as compared with the related art. As shown by way of example only in FIG. 3, the lower link unit 130 transmits the IuCS traffic, which is data on the first data transmission path, to the intermediate link unit 120 via the first data transmission path. In order to transfer IuPS traffic, which is data on the transmission path, through the first data transmission path, AAL5 for processing IuPS traffic is converted into AAL2 corresponding to the first data transmission path, and then loaded on the first data transmission path. do.

Similarly, the lower link unit 230 on the second data transmission path also transmits IuPS traffic, which is data on the second data transmission path, to the intermediate link unit 220 via the second data transmission path. In order to transfer IuCS traffic, which is data, through the second data transmission path, AAL2 for processing IuCS traffic is converted to AAL5 corresponding to the second data transmission path, and then loaded on the second data transmission path.

FIG. 4 is a diagram illustrating an improvement scheme related to channel allocation for multiplexing data transmission paths in some sections shown in FIG. 1 as compared with the related art. As shown by way of example only in FIG. 4, conventionally, allocating channel allocation between intermediate link sections on a path such as a lower link section to all four Vccs that handle IuCS signaling protocols (RANAP, ALCAP, etc.) to a link for IuCS. .

In addition, the existing lower link unit is interworking with the intermediate link unit on the other path to allocate the channel for data transmission, Vcc processing the IuPS signaling protocol on the link for the IuPS corresponding to the intermediate link unit on the other path 4 All assigned to dogs.

However, in the present invention, in allocating a channel for data transmission between the lower link unit 130 and the intermediate link unit 120 on the first data transmission path, two Vccs of the four Vccs are connected to the first data transmission path. Distributed allocation to the corresponding link for IuCS, and the remaining two Vccs are distributed to the link for the corresponding IuPS and the second data transmission path, and thus are based on a number of different links over a single physical link as the first data transmission path. To communicate data together.

Similarly, in allocating a channel for data transmission between the lower link unit 230 and the intermediate link unit 220 on the second data transmission path, two Vccs out of four Vccs are assigned to the second data transmission path. And the remaining two Vccs are distributed to the corresponding link for IuPS, and the remaining two Vccs are distributed to the link for IuCS corresponding to the first data transmission path, and thus, to a plurality of different links through a single physical link, which is the second data transmission path. You can pass the underlying data together.

FIG. 5 is a diagram illustrating a concept of distributed calling in a process of multiplexing a data transmission path in some sections shown in FIG. 1. As illustrated by way of example only in FIG. 5, the concept of distributed calling has been mentioned in the above description of FIG. 2, but the case where there are two simultaneous data processing ports of the upper link unit 110 is described. It will be described again as an example.

The intermediate link unit 120 is connected to two data processing ports of the upper link unit 110 by itself, so that the lower link unit itself in case a control message for channel setting is not received from the upper link unit 110. Calling for channel connection with each Vcc of 130 is performed, and calling for channel connection with each Vcc of the lower link unit 230 of another path is executed.

After the intermediate link unit 120 executes a call for channel connection with the lower link unit 130 or the lower link unit 230 of another path, the intermediate link unit 130 or the lower link unit 130 of the other link ( 230, data of the first data transmission path and data of the second data transmission path are received together.

Subsequently, the intermediate link unit 120 performs a normal link operation when a link error occurs in any one of data link processing ports of the upper link unit 110 located on the first data transmission path. The data of the first data transmission path and the data of the second data transmission path are transferred together to the other data simultaneous processing ports of the same.

Accordingly, it is possible to prevent the service of all transmission paths from being interrupted.

FIG. 6 is a flowchart illustrating an operation process of the data transmission path multiplexing system shown in FIG. 1. As shown by way of example only in FIG. 6, the data transmission path multiplexing method proceeds by the lower link unit 130 receiving each data transmitted through the first data transmission path and the second data transmission path (S1). .

Subsequently, the lower link unit 110 executes distributed allocation of the Vccs for processing the traffic data of the first data transmission path and the Vccs for processing the traffic data of the second data transmission path, and then performs a second allocation. For the IuPS traffic of the data transmission path, a process of additionally converting the protocol stack corresponding to the first data transmission path, which is the IuCS path, is further performed (S3 and S5).

Through this process, each data of the first data transmission path and the second data transmission path are transferred together on the first data transmission path (S7), and thus, the intermediate link unit 120 has each lower link unit 130. Data is received through the data connection for the Vcc of (S9).

Thereafter, after the intermediate link unit 120 determines whether an abnormality has occurred in the intermediate link unit 120 while receiving data (S11), when the abnormality occurs in the intermediate link unit 120 as a result of the determination. In order to transmit data through the other intermediate link unit 220 through the multiplexed transmission path (S13).

On the other hand, if the determination result in step S11 does not occur in the intermediate link unit 120 is to continue to transmit data through the first data transmission path, corresponding to the intermediate link unit 120 The upper link unit 110 performs link matching with the Vccs dispersed in various places (S15).

Thereafter, after determining whether the link matching board provided in the upper link unit 110 has failed (S17), when the link matching board of the upper link unit 110 has failed as a result of the determination, the multiplexed transmission path is determined. Through Vcc is to transmit data through the other link matching board distributed (S19).

On the other hand, if the determination result in step S17 does not occur in the upper link unit 110 is to continue to transmit data through the first data transmission path, the main processor for the upper link unit 110 The unit collects data on each transmission path and then performs integrated call processing (S21).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

In addition, the present invention is for multiplexing and transmitting data for call processing of a mobile communication network through a plurality of transmission paths, and for this purpose, to transmit data corresponding to a plurality of transmission paths through a single physical link. According to the present invention, it is an invention that is industrially available because the possibility of market or business is not only sufficient but also practically obvious.

1 is a block diagram of a data transmission path multiplexing system according to an embodiment of the present invention;

FIG. 2 is a conceptual diagram of multiplexing for a data transmission path in some sections shown in FIG. 1;

FIG. 3 is a diagram illustrating a protocol improvement plan according to multiplexing of data transmission paths in some sections shown in FIG. 1 in comparison with the prior art; FIG.

4 is a diagram illustrating an improvement scheme related to channel allocation for multiplexing data transmission paths in some sections illustrated in FIG. 1 in comparison with the prior art; FIG.

FIG. 5 is a diagram illustrating a concept of distributed calling in a process of multiplexing data transmission paths in some sections shown in FIG. 1, and

FIG. 6 is a flowchart illustrating an operation process of the data transmission path multiplexing system shown in FIG. 1.

Description of the Related Art

100: first data transmission device group 110, 210: upper link unit

120, 220: intermediate link portion 130, 230: lower link portion

200: second data transmission device group

Claims (19)

A data transmission path multiplexing system including a circuit service path and a packet service path for call processing of mobile communication, A circuit data link unit for transmitting and receiving circuit data and packet data for each link section on the circuit service path; And A packet data link unit for transmitting and receiving the circuit data and the packet data for each link section on the packet service path; The circuit data link unit establishes a connection between the link periods by setting the Vcc link for the circuit data and the packet data, changes the packet data to a protocol stack corresponding to the circuit service path, and transmits and receives the data. The packet data link unit establishes a connection between the link period by setting the circuit data and the Vcc link for the packet data, and transmits and receives the circuit data by changing the protocol data to a protocol stack corresponding to the packet service path. Path Multiplexing System. delete delete After allocating a distributed channel for data of another transmission path other than the data of the transmission object transmitted through the transmission path of the target section among the plurality of transmission paths for call processing of the mobile communication network, and transmitting the data through the transmission path of the target section. Lower link unit; An intermediate link unit configured to receive data of the transmission target and data of the other transmission path and transmit the received data and the data of the other transmission path to a higher link in a link connection by executing a call for each channel connected to the lower link unit; And An upper link unit for receiving data of the transmission target and data of the other transmission path through a link connection corresponding to the transmission path of the target section; And the lower link unit changes the data of the other transmission path into a protocol stack corresponding to the transmission path of the target section and transfers the data to the intermediate link unit. The apparatus of claim 4, wherein the data link device And a main processor unit for integrating a call after collecting the data transmitted through the transmission path and the other transmission path of the target section. delete 6. The method of claim 4 or 5, wherein changing the protocol stack And a layer change of the AAL corresponding to the other transmission path to the AAL corresponding to the transmission path of the target section. The method of claim 4 or 5, wherein the intermediate link portion And determining whether a link is connected to an upper link located on the upper link unit and another transmission path while continuing a channel for data transmission with the lower link unit through the call execution. The method of claim 8, wherein the intermediate link portion And when the link is not connected to the upper link unit as a result of the determination, transferring the data of the transmission target and the data of the other transmission path to an upper link located on the other transmission path. The method of claim 5, wherein the main processor unit And determining whether there is a link failure in the lower link unit, the intermediate link unit, and the upper link unit according to whether data is transmitted to each link point on the transmission path of the target section. The method of claim 5, wherein the main processor unit When receiving the data of the transmission target and the data of the other transmission path through the transmission path of the target section and the other transmission path, respectively, the data link is characterized by treating the overlapping data as the same single data. Device. A lower link unit for allocating a Vcc link channel for circuit data transmitted through a circuit service path for call processing of a mobile communication network and packet data transmitted through a packet service path, and then transmitting the Vcc link channel through the circuit service path; An intermediate link unit configured to receive the circuit data and the packet data and transmit the received circuit data and the packet data to an upper link in a link connection by executing a call for each channel connected to the lower link unit; And An upper link unit for receiving the circuit data and the packet data through a link connection corresponding to the circuit service path; The lower link unit And converting the packet data into a protocol stack corresponding to the circuit service path and transferring the packet data to the intermediate link unit. delete The method of claim 12, wherein the intermediate link portion And determining whether or not a link connection between the upper link unit and the upper link located on the packet service path is performed while continuing the channel for data transmission with the lower link unit through the call execution. A lower link unit for allocating a Vcc link channel for circuit data transmitted through a circuit service path for call processing of a mobile communication network and packet data transmitted through a packet service path, and then transmitting the Vcc link channel through the packet service path; An intermediate link unit configured to receive the circuit data and the packet data and transmit the received circuit data and the packet data to an upper link in a link connection by executing a call for each channel connected to the lower link unit; And An upper link unit for receiving the circuit data and the packet data through a link connection corresponding to the packet service path; And the lower link unit changes the circuit data into a protocol stack corresponding to the packet service path and transfers the circuit data to the intermediate link unit. delete The method of claim 15, wherein the intermediate link portion And determining whether a link is connected to the upper link unit and the upper link located on the circuit service path while continuing the channel for data transmission with the lower link unit through the call execution. Through the lower link unit, after allocating a distributed channel for data of another transmission path other than the data of the transmission object transmitted through the transmission path of the target section among the plurality of transmission paths for call processing of the mobile communication network, the transmission path of the target section A sublinking step for delivering through; An intermediate link step of receiving the data of the transmission target and the data of the other transmission path through the intermediate link unit, and transmitting the data of the transmission target and the data of the other transmission path to the upper link unit which is being linked by link execution; And And a call processing execution step of receiving the data of the transmission target and the data of the other transmission path through the main processor unit, and performing integrated call processing through the link connection corresponding to the transmission path of the target section. Path multiplexing method. 19. The method of claim 18, wherein the data transmission path multiplexing method And a link error determining step for determining whether a link error occurs in the intermediate link portion and the upper link portion.

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