KR20030019827A - Method for signal processing in a IMT-2000 system of based ATM - Google Patents

Abstract

PURPOSE: A method of processing a signal in an IMT-2000 system based on an ATM is provided to previously assign VCs to all ATM end points, and to immediately transmit control information data to a destination ATM node without SVC signal procedures by using VC connections, thereby reducing ATM node load and reducing signal processing delay. CONSTITUTION: An MCCA(Multi-rate Channel Card Assembly) transmits a call setup signal message to a BCP(BTS Control Processor)(S101). The BCP transmits the call setup signal message to a CCP(Call Control Processor)(S102). The CCP requests usable base station call resources to the BCP(S103). The BCP sets channels and link resources usable in a BTS(S104). The BCP transmits a resource assignment message to the MCCA(S105). The BCP transmits the resource assignment message to a DUIA(Digital Unit Interface Assembly)(S106). The BCP transmits the resource assignment message to the CCP(S107). The CCP sets call resources and ATM resources(S108). The CCP transmits the resource assignment message to an ATB(ATM Trunk Board)(S109).

Description

Method for signal processing in a IMT-2000 system of based ATM

The present invention relates to an ATM address system and a signal processing method in an ATM (Asynchronous Transfer Mode) based IMT-2000 system. In particular, a new address system is assigned to each ATM node, and a new ATM resource is allocated in software for each traffic call. The present invention relates to a signal processing method in an ATM-based IMT-2000 system for providing a method for releasing and releasing.

Newly researched and proposed system for voice service, video service and low speed and high speed data service is IMT-2000 system which is next generation mobile communication system.

Since the IMT-2000 system performs ATM-based communication supporting high-speed data services, the modified high-level data link controller (HDLC) format used in the existing IS-95 A / B service system may be used. There is a problem that can not be used in ATM-based IMT-2000 system.

Therefore, in order to transfer data from each source node to a destination node in an ATM-based IMT-2000 system, an ATM-based addressing system to be allocated to each ATM node is required.

In addition, the following problems occur when using the existing Switched Virtual Circuits (SVC) method in the entire ATM section.

That is, VC is not set up in many networks because ATM cyclically is established through signaling procedure. However, ATM signaling software is required to perform such signaling procedure, and OS binding is required accordingly. ) There is a disadvantage that it requires the development of task and interface application software. In addition, there is a problem in that call setup delay occurs because a VC connection is required through a signaling procedure for every call attempt. Therefore, in the IMT-2000 system with many ATM nodes, significant call setup delay occurs, which causes the performance degradation of the system.

In addition, when the existing PVC (Permanent Virtual Circuits) used in the entire ATM section, the following problems occur.

If the PVC method of allocating virtual access channels to all ATM nodes of the IMT-2000 system in advance and transmitting data according to the allocation principle does not cause a delay problem due to the setting of ATM signals, All connections between points must be set manually, and setting up VC in the entire section of the IMT-2000 system with many ATM nodes is impossible due to hardware problems of each ATM node.

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to provide a signal processing method in an ATM-based IMT-2000 system that provides a new address system to each ATM node and provides a method for allocating and releasing new ATM resources in software for each traffic call. There is.

The present invention for achieving the above object,

The VC is pre-allocated to all ATM endpoints of the IMT-2000 system, and the control information data transmitted frequently between each ATM node uses this VC connection to send the data directly to the destination ATM node without SVC signaling procedure. Therefore, no load is applied to the ATM node and no signal processing delay occurs.

In addition, it performs a function of setting and releasing ATM resources for each traffic call generated by an ATM processing processor managing ATM VC resources and transmitting traffic data through the established VC connection. Therefore, ATM nodes can automatically allocate and free VC connections in many IMT-2000 systems without requiring special SVC software.

1 is a schematic configuration diagram of an ATM-based IMT-2000 system to which the present invention is applied;

2 is a flowchart illustrating a call processing process among signal processing methods in an ATM-based IMT-2000 system according to the present invention;

3 is a flowchart illustrating a traffic procedure after call setup in a signal processing method in an ATM-based IMT-2000 system according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100 ..... Base Station (BTS)

110 ..... MCCA

120 ..... DCCA

130 ..... DUIA

140 ..... BCP

150 ..... BAIA

200 ..... Control Station (BSC)

210 ..... CCP

220 ..... LR

230 ..... ATB

240 ..... HTSB

300 ..... Global Router

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention according to the technical spirit as described above.

1 is a schematic configuration diagram of an ATM-based IMT-2000 system to which the present invention is applied.

As shown here, a function of switching voice data from a base station transceiver base system (BTS) 100, a control station (BSC: base station controller) 200, and the control station 200 to another control station. It consists of a global router (GR) 300 to perform the.

The ATM node of the base station 100, the multi-rate channel card assembly (MCCA) 110 for performing modulation and demodulation of the CDMA signal in the base station, and manages the MCCA (110) and the status information BCP (BTS Control Processor) DCCA (DU Controller Card Assembly) 120 to be transmitted to the 140, and Digital Unit Interface (DUIA) responsible for transmitting the ATM cell transmitted from the MCCA 110 and DCCA 120 through a 25M interface Assembly (130), BCP 140 in charge of the base station call processing / resource management / status management, and BAIA (B-link in charge of the interface between the control station 200 and the base station 100 through the B-link ATM board Interface Assembly (150).

In addition, the ATM node of the control station 200, the call control processor (CCP) 210 responsible for call processing and call resources and ATM resource management of the entire system, and performs a switching function of the ATM cell transmitted from the control station Interface with the base station 100 via a local router (LR: 220), and the B-link, and the cell header conversion according to the ATM connection settings set up from the CCP (210) every call setup ATB (ATM Trunk Board) 230 performing a function of transmitting to the base station E1 link and transmitting to the control station corresponding board, and HTSB (High capacity Transcoder) for processing voice data transmitted from the local router 220 & Selector Bank) 240.

The ATM-based IMT-2000 system configured as described above is designed as an ATM node capable of fast switching in all sections. Each node communicates via an ATM cell, which is transmitted according to the VC connection setup. In order to transmit ATM cell in all ATM sections, VC connection must be established. For this purpose, ATM network interface definition used in each ATM node section is required.

The network interface in the ATM-based IMT-2000 system as shown in FIG. 1 is as follows.

First, each ATM node in the base station 100 uses a User-Network Interface (UN) interface, and in the control station 200, the HTSB 240 and the local router 220 section uses the UNI interface. The interval between the ATB 230 and the local router 220 uses a network-network interface (NNI) interface, and the interval between the local router 220 and the global router 300 uses a network-network interface (NNI) interface.

As is well known in the IMT-2000 system, all sections are designed as ATM nodes capable of fast switching. Each node communicates via an ATM cell, which is transmitted according to the VC connection setup. In order to transmit ATM cell in the entire ATM section, VC connection should be established.

The following defines the Virtual Path Identifier (VPI) / Virtual Channel Identifier (VCI) connection configuration for communication between ATM nodes in an IMT-2000 system.

The HTSB 240 port VP / VC scheme is as follows.

Table 1 shows the HTSB 240 port VP scheme.

7 6 5 4 3 2 One 0 0 0 0 Target Type Target ID

Type ID: Type of connection between each port,

HTSB <-> CCP: 000

HTSB <-> ATB: 001

Target ID: '00' ~ '11' (each target board)

HTSB <-> CCP: '00'

HTSB <-> ATB: '00' ~ '01'

Next, the VC system is as follows.

[Table 2] shows the VC scheme between the HTSB and CCP.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One 0 0 OA ID

In Table 2, the fifth bit is '1' (set to avoid the VCI Reserved value (0 to 31)), and the OA ID is '000' to '111'.

[Table 3] shows the VC scheme for traffic transmission between the HTSB and ATB.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 Hand off OA ID Vocoder ID

Hand off: '01' ~ '11' (handoff identifier), OA ID: '000' ~ '111', Vocoder ID: '0000000' ~ '1111000'.

Next, the VP / VC address system of the CCP 210 port is designed as follows.

The VP address system is shown in Table 4 below.

7 6 5 4 3 2 One 0 0 0 Type ID Target ID

Type ID: Connection type between each port

CCP <-> HTSB: '00'

CCP <->: '01'

Target ID: Connect between each port

CCP <-> HTSB: '00' to '11'

CCP <-> ATB: '00' to '01'

The VC address system is as follows.

First, the connection between CCP and HTSB is shown in [Table 5] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One 0 0 OA ID

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

OA ID: '000' ~ '111'

Next, the connection between CCP and ATB (processor) is shown in [Table 6] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 0 0 0 0 0 0 One 0 0 0 0 0

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

In addition, the connection between CCP and ATB (BCP) is shown in Table 7 below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 0 0 0 0 0 One Link ID

6th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

Link ID: '000000' (0) ~ '111111' (63)

Next, the VP / VC address scheme of the ATB port is designed as follows.

First, the VP system is shown in [Table 8] below.

11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 0 0 0 Type ID Target ID

Type ID: Connection type between each port

ATB <-> CCP: '000'

ATB <-> HTSB: '001'

ATB <-> HTSB: '010'

Target ID: Connect between each port

ATB <-> CCP: '000'

Target ID: '0'

ATB <-> HTSB: '001'

Target ID: '00' ~ '11'

ATB <-> HTSB: '010'

Target ID: '00' ~ '01'

The VC addressing system is as follows.

The VC scheme between ATB (processor) and CCP is shown in [Table 9] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 0 0 0 0 0 0 One 0 0 0 0 0

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

In addition, the VC scheme between ATB and CCP is shown in [Table 10] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 One Link ID

6th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

Link ID: '000000' (0) ~ '111111' (63)

In addition, the VC system between ATB and HTSB (Traffic) is shown in Table 11 below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 0 0 0 0 Handoff OA ID Vocoder ID

Hand off: '01' ~ '11' (Hand off identifier)

OA ID: '000' ~ '111'

Vocoder ID: '0000000' ~ '1111000'

Next, the VP / VC port system of the BTS internal block is designed as follows.

First, the VP / VC system between BTS internal blocks is as follows.

Table 12 below shows the VP system.

7 6 5 4 3 2 One 0 0 0 Target ID

Target ID: Display each target block ID

MCCA: '0' ~ '35'

BCP: '36'

DCCA: '37' ~ '40'

DUIA: '41' ~ '46'

BAIA: '47' ~ '49'

Next, the VC system is as follows.

First, the VC system between BCP and MCCA is shown in [Table 13] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One 0

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

Next, the VC system between MCCA and BCP is shown in [Table 14] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One MCCA ID

6th bit: '1' (indicates MCCA <-> BCP connection)

MCCA ID: '000000' (0) ~ '100100' (36)

Also, VC system between DUIA and BCP is shown in [Table 15] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) 0 One 0 One DUIA ID

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

4th ~ 3rd bit: '01' (Displays DUIA <-> BCP connection)

DUIA ID: '000' (0) ~ '101' (5)

Next, the block VP / VC port system between BTS and LR is designed as follows.

First, the control and loading VP / VC scheme is described.

Table 16 below shows the VP system.

7 6 5 4 3 2 One 0 One 0 0 0 0 0 Type

7th bit: '1' (BTS <-> indicates LR connection)

Type: Display connection type between BTS <-> LR

BCP <-> CCP: '00'

Table 17 below shows the VC scheme.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One BAIA ID Link ID

5th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

BAIA ID: '00' (0) ~ '10' (2)

Link ID: '000' (0) ~ '111' (7)

Next, the traffic VP / VC address system is as follows.

First, the VP system is shown in Table 18 below.

7 6 5 4 3 2 One 0 0 0 MCCA ID

MCCA ID: '000000' (0) ~ '100011' (35)

Next, the VC system is shown in [Table 19] below.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 One 0 Reserved (0) One CE ID

6th bit: '1' (set to avoid VCI Reserved value (0 ~ 31))

CE ID: '000000' (0) ~ '111111' (63)

As is well known, the signal and control data transmitted from the terminal are delivered to the destination using a fixed pre-assigned IMT-2000 signal and VPI / VCI for data transmission, and the traffic data (voice and packet data) transmitted from the terminal It is transmitted through the VC connection allocated by the processor (CCP, BCP) that manages ATM resource.

2 is a flowchart illustrating a call processing process among signal processing methods in an ATM-based IMT-2000 system according to the present invention.

First, in step S101, the MCCA transmits a call setup signaling message to the BCP.

Here, the VPI / VCI for setting the connection from MCCA to BCP is shown in [Table 20] below.

VPI VCI 36 Reserved (0) One MCCA ID

-Send channel assignment request message.

Next, in step S102, the BCP transmits a call setup signaling message to the CCP.

Here, VPI / VCI for setting up ATB connection in BCP is shown in [Table 21] below.

VPI VCI One Reserved (0) 0 0 Reserved (0) One BAIA ID Link ID

-Send vocoder resource allocation request message

In addition, VPI / VCI for local router connection setting in ATB is shown in [Table 22] below.

VPI VCI 0 Reserved (0) One Link ID

In addition, VPI / VCI for connection setting from local router to CCP is shown in [Table 23] below.

VPI VCI Reserved (0) One ATB ID Reserved (0) One Link ID

Next, in step S103, the CCP requests the base station call resources available for BCP.

Here, VPI / VCI for CCP setting of local router connection is shown in [Table 24] below.

VPI VCI Reserved (0) One ATB ID Reserved (0) One Link ID

-Send channel allocation request message

In addition, VPI / VCI for ATB connection establishment in local router is shown in [Table 25] below.

VPI VCI 0 Reserved (0) One Link ID

Next, in step S104, the BCP sets up channel and link resources available inside the BTS.

That is, set available channels, BAIA boards, and E1 links.

Next, in step S105, the BCP transmits a resource allocation message to the MCCA of the set resource.

Here, VPI / VCI for setting MCCA connection in BCP is shown in [Table 26] below.

VPI VCI MCCA ID Reserved (0) One 0

-Transmit the set channel resource

Next, in step S106, the BCP transmits a resource allocation message to the DUIA such that the established channel is transmitted through the established link.

Here, the VPI / VCI for setting MCCA connection in BCP is shown in [Table 27] below.

VPI VCI DUIA ID Reserved (0) One 0

-Send the VC value and the configured BAIA board and E1 link to DUIA.

Next, in step S107, the BCP transmits a resource allocation message for reporting a resource set to CCP.

-Transmit E1 link with VC value and BAIA board configured for connection.

Next, in step S108, the CCP sets call resources and ATM resources.

That is, it sets available HTSB and vocoder resources.

In addition, the CCP transmits a resource allocation message to the ATB in step S109.

In other words, the configured resource is allocated to the ATB.

Here, VPI / VCI for local router connection setting in CCP is shown in [Table 28] below.

VPI VCI Reserved (0) One ATB ID Reserved (0) One 0

In addition, VPI / VCI for CCP connection establishment in local router is shown in [Table 29] below.

VPI VCI 0 Reserved (0) One 0

-Transmit HTSB / Vocoder VC value used for connection, MCCA / CE ID VC value to be converted to it, and destination E1 link ID.

In the ATB, when a cell having the VC value set above is transmitted from the HTSB based on the ATM resource transmitted above, the ATB performs cell header conversion to the corresponding MCCA / CE and transmits it to the configured E1 link.

Next, in step S110, the CCP transmits a resource allocation message to the HTSB.

Here, VPI / VCI for HTSB connection establishment in CCP is shown in [Table 30] below.

VPI VCI 0 Reserved (0) One 0 0 OA ID

Transmit the destination MCCA / CE ID value used for the connection.

After the call setup signaling procedure in the IMT-2000 system, the traffic transmission procedure in each ATM node is shown in FIG. 3.

3 is a flowchart illustrating a traffic procedure after call setup in a signal processing method in an ATM-based IMT-2000 system according to the present invention.

First, in step S201, the MCCA transmits traffic data to the DUIA.

Here, the VPI / VCI for DUIA connection establishment in MCCA is shown in [Table 31] below.

VPI VCI MCCA ID Reserved (0) One CE ID

Next, in step S202, the DUIA transmits traffic data to the control station ATB board through the link of the BAIA board according to the link resource allocated by E1 from the BCP.

Here, VPI / VCI for DUIA connection establishment in MCCA is shown in [Table 32] below.

VPI VCI MCCA ID Reserved (0) One CE ID

Next, in step S203, the ATB performs ATM cell header conversion according to the ATM resource allocated from the CCP to transmit traffic data to the local router.

Here, VPI / VCI for input (BAIA-> ATB) connection setting is shown in [Table 33] below.

VPI VCI MCCA ID Reserved (0) One CE ID

In addition, VPI / VCI for setting output (ATB-> local router) connection is shown in [Table 34] below.

VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID

Next, in step S204, the local router performs cell header conversion on the input ATM cell to the corresponding HTSB board to transmit traffic data.

Here, VPI / VCI for input (ATB-> local router) connection setting is shown in [Table 35] below.

VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID

In addition, the VPI / VCI for the output (ATB-> local router) connection configuration are shown in Table 36 below.

VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID

Meanwhile, the process of transmitting an ATM cell from the HTSB to the MCCA is as follows.

In step S205, the HTSB transmits traffic data to its local router through its VC resource.

Here, the VPI / VCI for setting up the output (HTSB-> local router) connection is shown in [Table 37] below.

VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID

Next, in step S206, the data input from the HTSB is transmitted to the corresponding ATB board.

Here, VPI / VCI for input (HTSB-> local router) connection setting is shown in [Table 38] below.

VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID

In addition, the VPI / VCI for the output (local router-> ATB) connection setup is shown in Table 39 below.

VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID

Next, in step S207, the ATB performs ATM cell header conversion to the E1 port connected to the destination BTS according to the E1 link resource allocated from the CCP to transmit traffic data.

Here, VPI / VCI for input (ATB-> local router) connection setting is shown in [Table 40] below.

VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID

Also, VPI / VCI for output (ATB-> BAIA) connection setting is as below [Table 41].

VPI VCI MCCA ID Reserved (0) One CE ID

Next, in step S208, the BAIA routes and transmits the transmitted traffic ATM cell to the destination MCCA.

Here, VPI / VCI for input (ATB-> BAIA) connection setting is as below [Table 42].

VPI VCI MCCA ID Reserved (0) One CE ID

Next, VPI / VCI for output (ATB-> BAIA) connection setting is as below [Table 43].

VPI VCI MCCA ID Reserved (0) One CE ID

According to the present invention described above, the "signal processing method in the ATM-2000 system based on AMT", by configuring the network matching portion using a large-capacity ATM switch to set the quality of service (Quality Of Service) required for multimedia services There is an advantage that high-speed data service of 384 Kbps or more can be satisfied.

In addition, the present invention, the VC is pre-allocated to all ATM endpoints of the IMT-2000 system, and the control information data transmitted frequently between each ATM node is used to transfer the data to the destination ATM node without the SVC signaling procedure using this VC connection. Since it can be transmitted immediately, there is an advantage that the load on the ATM node can be reduced and the signal processing delay can be reduced.

In addition, since ATM data is set and released for each traffic call generated by the ATM processor that manages ATM VC resources, the traffic data is transmitted through the established VC connection. The advantage is that the -2000 system can automatically allocate and release VC connections.

Claims (20)

A base station consisting of a multi-rate channel card assembly (MCCA), a DU controller card assembly (DCCA), a digital unit interface assembly (DUIA), a BCP, a B-link ATM board interface assembly (BAIA), and a call (CCP) A signal processing method in an ATM-based IMT-2000 system including a control processor, a local router (LR), an ATM trunk board (ATB), and a control station composed of a high capacity transcoder & selector bank (HTSB). In Transmitting a call setup signaling message from the MCCA to a BCP; Receiving, by the BCP, the call setup signaling message and transmitting a call setup signaling message to a CCP; Receiving, by the CCP, the call establishment signaling message, requesting a base station call resource available for BCP; The BCP sets a channel and a link resource that can be used in the BTS, and transmits a resource allocation message for the set resource to the MCCA. A fifth step of transmitting a resource allocation message to the DUIA such that the channel established in the BCP is transmitted through the established link after the fourth step; A sixth step after the fifth step, the BCP transmits a resource allocation message for reporting a resource set to CCP; The CCP comprises the seventh step of setting a call resource and ATM resources, transmitting a resource allocation message to the ATB, and transmits a resource allocation message for the set resource to the HTSB. Signal processing method in -2000 system. The method of claim 1, wherein the first step, The VPI / VCI for establishing the connection from the MCCA to the BCP is set as shown in the table below. VPI VCI 36 Reserved (0) One MCCA ID The method of claim 1, wherein the second step, The VPI / VCI for ATB connection setting in the BCP is set as shown in Table 1 below, and the VPI / VCI for local router connection setting in ATB is set as shown in Table 2 below. The VPI / VCI for connection establishment is set as shown in Table 3 below. <Table 1> VPI VCI One Reserved (0) 0 0 Reserved (0) One BAIA ID Link ID <Table 2> VPI VCI 0 Reserved (0) One Link ID <Table 3> VPI VCI Reserved (0) One ATB ID Reserved (0) One Link ID The method of claim 1, wherein the third step, In the CCP, the VPI / VCI for establishing the connection of the local router is set as shown in Table 1 below, and the VPI / VCI for setting the ATB connection in the local router is set as shown in Table 2 below. Signal processing method in AMT based IMT-2000 system. <Table 1> VPI VCI Reserved (0) One ATB ID Reserved (0) One Link ID <Table 2> VPI VCI 0 Reserved (0) One Link ID The signal processing method of claim 1, wherein the BCP of the fourth step sets an available channel, the BAIA board, and the E1 link. The method of claim 1, wherein the BCP of the fourth step, The VPI / VCI for setting the MCCA connection is set as shown in the table below. VPI VCI MCCA ID Reserved (0) One 0 The method of claim 1, wherein the fifth step, The VPI / VCI for setting MCCA connection in the BCP is set as shown in the table below. VPI VCI DUIA ID Reserved (0) One 0 The method of claim 1, wherein the BCP of the sixth step, VC value used for the connection, and the signal processing method in the ATM-based IMT-2000 system, characterized in that for transmitting the E1 link with the set BAIA board. The method of claim 1, wherein the CCP of the seventh step, A method of processing a signal in an ATM-based IMT-2000 system, characterized by setting available HTSB and vocoder resources. According to claim 1, wherein the seventh step, The VPI / VCI for local router connection setting in the CCP is set as shown in Table 1 below, and the VPI / VCI for CCP connection setting in the local router is set as shown in Table 2 below. Signal processing method in AMT-based IMT-2000 system. <Table 1> VPI VCI Reserved (0) One ATB ID Reserved (0) One 0 <Table 2> VPI VCI 0 Reserved (0) One 0 According to claim 1, wherein the seventh step, The VPI / VCI for HTSB connection setting in the CCP is set as shown in the table below. VPI VCI 0 Reserved (0) One 0 0 OA ID A base station consisting of a multi-rate channel card assembly (MCCA), a DU controller card assembly (DCCA), a digital unit interface assembly (DUIA), a BCP, a B-link ATM board interface assembly (BAIA), and a call (CCP) A signal processing method in an ATM-based IMT-2000 system including a control processor, a local router (LR), an ATM trunk board (ATB), and a control station composed of a high capacity transcoder & selector bank (HTSB). In A first step of transmitting traffic data from the MCCA to DUIA; A second step of transmitting traffic data to a control station ATB board through a link of a corresponding BAIA board according to a link resource allocated E1 from a BCP in the DUIA; Transmitting, by the ATB, traffic data to a local router by performing ATM cell header conversion according to an ATM resource allocated from the CCP; Performing a cell header conversion on the ATM cell input from the local router to a corresponding HTSB board to transmit traffic data; A fifth step of transmitting traffic data from the HTSB to the local router through its VC resource; Transmitting, by the local router, the traffic data inputted from the HTSB to the corresponding ATB board; A seventh step of performing ATM cell header conversion to an E1 port connected to a destination BTS according to an E1 link resource allocated from a CCP in the ATB to transmit traffic data; And the BAIA comprises an eighth step of routing and transmitting the transmitted traffic ATM cell to the destination MCCA. The method of claim 12, wherein the first step, The VPI / VCI for setting the DUIA connection in the MCC is set as shown in the table below. VPI VCI MCCA ID Reserved (0) One CE ID The method of claim 12, wherein the second step, The VPI / VCI for setting the DUIA connection in the MCCA is set as shown in the table below. VPI VCI MCCA ID Reserved (0) One CE ID The method of claim 12, wherein the third step, The VPI / VCI for input connection setting from BAIA to ATB is set as shown in Table 1 below, and the VPI / VCI for output connection setting from ATB to BAIA is set as shown in Table 2 below. A signal processing method in an AMT-based IMT-2000 system. <Table 1> VPI VCI MCCA ID Reserved (0) One CE ID <Table 2> VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID The method of claim 12, wherein the fourth step, The VPI / VCI for setting the input connection from the ATB to the local router is set as shown in Table 1 below, and the VPI / VCI for setting the output connection from the ATB to the local router is shown in Table 2 below. Signal processing method in the ATM-based IMT-2000 system, characterized in that set as. <Table 1> VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID <Table 2> VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID The method of claim 12, wherein the fifth step, The VPI / VCI for output connection setting from the HTSB to the local router is set as shown in the following <Table>. VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID The method of claim 12, wherein the sixth step is The VPI / VCI for establishing the connection from the HTSB to the local router is set as shown in Table 1 below, and the VPI / VCI for setting the output connection from the local router to the ATB is shown in Table 2 below. Signal processing method in the AMT-based IMT-2000 system, characterized in that set as. <Table 1> VPI VCI Reserved (0) One ATB ID Reserved (0) Handoff ID OA ID Vocoder ID <Table 2> VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID The method of claim 12, wherein the seventh step, The VPI / VCI for setting the input connection from the ATB to the local router is set as shown in Table 1 below, and the VPI / VCI for setting the output connection from the ATB to the BAIA is shown in Table 2 below. Signal processing method in the AMT-based IMT-2000 system, characterized in that set as. <Table 1> VPI VCI Reserved (0) One HTSB ID Reserved (0) Handoff ID OA ID Vocoder ID <Table 2> VPI VCI MCCA ID Reserved (0) One CE ID The method of claim 12, wherein the eighth step is The VPI / VCI for setting the connection from the ATB to the BAIA is set as shown in Table 1 below, and the VPI / VCI for setting the output connection from the ATB to the BAIA is set as shown in Table 2 below. A signal processing method in an AMT-based IMT-2000 system. <Table 1> VPI VCI MCCA ID Reserved (0) One CE ID <Table 2> VPI VCI MCCA ID Reserved (0) One CE ID