KR100275455B1 - Method of processing origination and termination calls for multimedia call processing - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to an outgoing call and incoming call processing method for multimedia call processing in a mobile communication system.

2. The technical problem to be solved by the invention

An object of the present invention is to provide an outgoing and incoming call processing method for processing a multimedia call by performing multi-code allocation and service capability negotiation to support multimedia.

3. Summary of Solution to Invention

The present invention includes a first step in which a calling base station receives a calling message and transmits a channel assignment message and null call channel data, and a calling mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal; A second step in which the calling base station receives the reverse pilot signal and transmits a base station confirm command, and the calling mobile station receives the base station confirm command and transmits the mobile station confirm command and the null call channel data to the calling base station; And a third step in which the calling mobile station transmits a service request message and performs a service capability negotiation to perform a multimedia call call.

4. Important uses of the invention

The present invention is used in a mobile communication system.

Description

Outgoing and incoming call processing method for multimedia call processing in mobile communication system

The present invention relates to an outgoing and incoming call processing method for multimedia call processing in a mobile communication system.

The IS-95 Code Division Multiple Access (hereinafter referred to as "CDMA") air interface protocol and the like are wireless access protocols for supporting only voice services. In the conventional IS-95 CDMA mobile communication system, Except for the registration and authentication procedures, there were no multi-code allocation procedures and various multimedia service capability negotiation procedures for transmitting various multimedia data.

Therefore, in order to support multimedia, multiple call channels capable of transmitting various and massive amounts of multimedia data are required, so a multi-channel allocation procedure is required. In addition, in order to support a variety of multimedia, the end-to-end mobile station must have the same service capability, and the base station must manage radio resources to accommodate it, and a message field for indicating the end-to-end mobile station's service capability and In the case of different service capabilities, protocol procedures and new messages are needed to negotiate this.

However, the conventional air interface protocol of the IS-95 CDMA mobile communication system does not adequately support the multi-channel allocation procedure and protocol procedures and messages for negotiating service capability, which is not suitable for supporting multimedia. .

The present invention has been made to solve the above problems, multi-code allocation and service capability negotiation to support a variety of multimedia as well as voice in a wideband code division multiple access (W-CDMA) mobile communication system It is an object of the present invention to provide an outgoing call and incoming call processing method capable of processing a multimedia call.

1 is a logical structural diagram of a wideband code division multiple access (W-CDMA) air interface protocol supporting multimedia call processing used in the present invention.

2A to 2D are flowcharts of one embodiment of an outgoing signal processing method for multimedia call processing according to the present invention;

3A and 3B are flowcharts illustrating one embodiment of a service capability negotiation process in a call signal processing method according to the present invention;

4A through 4E are flowcharts of an exemplary call processing method for multimedia call processing according to the present invention;

5A and 5B are flowcharts illustrating one embodiment of a service negotiation process in an incoming call processing method according to the present invention;

* Explanation of symbols for the main parts of the drawings

101: physical layer 102: network layer

103: data link layer 104: application layer

105: management hierarchy

In order to achieve the above object, the present invention provides a call signal processing method for multimedia call processing applied to a mobile communication system, wherein a base station receives a call message, transmits a channel assignment message and null call channel data, and makes a call. A first step of the mobile station receiving a channel assignment message and null call channel data and transmitting a reverse pilot signal to the calling base station; A second step in which the calling base station receives a reverse pilot signal to transmit a base station confirming command, and the calling mobile station receives a base station confirming command and transmits a mobile station confirming command and null call channel data to the calling base station; And a third step of, when the calling mobile station transmits a service request message to the calling base station, the calling mobile station and the base station and the called base station and the mobile station perform a service capability negotiation to perform a multimedia call call.

The present invention also provides a method for processing an incoming call for multimedia call processing applied to a mobile communication system, wherein a called base station transmits a call message to a called mobile station, and the called mobile station receives a call message to answer a call. Transmitting a message to the called base station; The called base station receives a call response message and transmits a channel assignment message and null call channel data, and the called mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal to the called base station. Second step; A third step in which the called base station receives a reverse pilot signal to transmit a base station confirm command, and the called mobile station receives a base station confirm command and transmits a mobile station confirm command and a null call channel data to the called base station; And a fourth step in which a calling party and a base station and the called base station and the mobile station perform a service capability negotiation to perform a multimedia call call.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a logical structure diagram of a wideband code division multiple access (W-CDMA) air interface protocol supporting multimedia call processing used in the present invention, and the protocol structure of the W-CDMA air interface includes a physical layer 101, a network layer ( 102, a data link layer 103, an application layer 104, and a management layer 105 that manages the protocol.

As shown in the figure, the physical layer 101 is responsible for direct transmission and reception of data, the data link layer 103 is defined as a sublayer of the network layer 102, and a reliable message for the network layer 102. The data link layer 103 is used at the time of sending and receiving messages to ensure transmission of the message.

In addition, each state of the data link layer 103 exists as a substate of all states except the null state of the network layer 102. Network layer 102 is a layer that performs the actual operation of the W-CDMA system to establish and release calls in connection with multimedia call processing, to allocate necessary radio resources and to negotiate the service capability of end-to-end mobile stations.

In addition, the management layer 105 has interfaces to all layers so that it is possible to pass primitives between two layers that do not have an interface, and is responsible for the overall management of the protocol.

In addition, each layer of the protocol has a directional interface with the upper and lower layers and the management layer 105, and transfers primitives necessary for the protocol to operate through the interfaces between the layers, and the structure of the W-CDMA air interface protocol The base stations are symmetrically identical.

2A to 2D are flowcharts of an embodiment of a method for processing a call signal for multimedia call processing according to the present invention.

As shown in the figure, the calling procedure of the W-CDMA system is possible only in a situation where the calling mobile station is in an idle state after performing the system setting, and the calling mobile station calling procedure is started by the calling command of the subscriber.

First, the calling mobile station transitions to the additional information updating sub state of the system connection state with the call instruction within T33m seconds (201), and is ensured that the calling mobile station stores the latest access parameters in the additional information updating sub state. In order to receive at least one message including the access message sequence (ACC_MSG_SEQ) area.

Thereafter, the configuration information stored in the calling mobile station checks whether the current access message sequence CURR_ACC_MSG_SEQ and the access message sequence ACC_MSG_SEQs are the same and not null (202) to connect with the current access message sequence (CURR_ACC_MSG_SEQ). If the message sequence (ACC_MSG_SEQs) is the same and not null, the calling mobile station stops the system connection status timer, transmits a calling message to the access channel through the connection attempt, and then transitions to the mobile station in a negative state (203). .

Thereafter, when the calling base station receives the calling message in the idle state, it notifies the reception of the calling message and transitions to the calling sub-state (204), selects a call channel in the calling sub-state and transmits a channel assignment message, and at the same time null ( null) Transmit call channel data and transition to call channel initialization substate (205). At this time, in order to connect multimedia call, it should indicate that it is multimedia service, not voice, asynchronous data, G3 facsimile or short service in special service selection field and service selection field of calling message.

Subsequently, when the calling mobile station receives the channel assignment message sent by the calling base station in the subsidiary call state, it checks the assignment mode (ASSIGN_MODEr) area (206), checks the test result (207), and the assignment mode is '001'. If the call channel is assigned, the mobile station transitions to the sub-information update sub-state with the call indication or the mobile station is idle (208), and if the assignment mode is '000' single call channel allocation or '100' multi-call channel allocation, call channel initialization Transition to a negative state (209).

Subsequently, it is determined if the calling mobile station receives null communication channel data transmitted from the calling base station in T50m seconds in successive N5m good frames within T50m seconds (210). In step 211, if received, a reverse pilot signal is transmitted to the calling base station in the call channel initialization substate (212).

Subsequently, it is determined whether the calling base station has received the reverse pilot signal from the calling mobile station in order to acquire the reverse calling channel in the call channel initialization substate (213). If it does not receive the reverse pilot signal, it retransmits the channel assignment message (214). When receiving the reverse reverse pilot signal, the UE recognizes that the reverse call channel has been acquired and transmits a base station confirmation command to the calling mobile station (215).

Thereafter, it is determined whether the calling mobile station has received the base station confirming command from the calling base station within T51m seconds (216). If it does not receive the base station confirming command, it transitions to the system decision substate (217). Transitioning to the conversation substate while transmitting a confirmation command and null call channel data (218).

Thereafter, the calling base station receives the mobile station acknowledgment command from the calling mobile station and transitions to the conversation substate (219).

Thereafter, the calling mobile station transmits a service request message to the calling base station (220), and the calling mobile station and the base station and the called mobile station and the base station perform a service capability negotiation process (221).

Then, it is determined whether the multimedia call is accepted (222), if the multimedia call is not accepted, the calling mobile station transitions to the system decision substate (223), the calling base station transitions to the base station idle state (224), and if the multimedia call is accepted The calling base station sends an alert message to the calling mobile station (225), the calling mobile station receives an information alert message from the calling base station to inform the user that the multimedia call is connected (226), and performs a multimedia call call (227). ).

Subsequently, by determining the type of event generated during the multimedia call call (228), when the calling mobile station receives a call disconnection instruction from the busy user in the conversation state, the calling mobile station transmits a release command to the calling base station ( 229, the release substate timer T55m is activated and transitions to the release substate 230.

Thereafter, the originating base station receives the release command from the calling mobile station and reports the release request to the network (231), sends a release command to the calling mobile station (232), and the calling base station releases the sub-state timer (T3b). (A), transition to the release substate, and transmit null call channel data to the calling mobile station (233).

Thereafter, the calling mobile station receives the release command from the calling base station, stops the call channel transmitter operation, and transitions to the system decision substate (234).

Thereafter, when the release side state timer expires, the calling base station stops the call channel processing and transitions to the base station idle state (235).

On the other hand, if the originating base station receives the release instruction from the network by determining the type of event generated during the multimedia call call (228), the calling base station transmits a release command to the calling mobile station (236), the release sub-state timer And activates (T3b), transitions to the released substate, and transmits null call channel data to the calling mobile station (237).

Thereafter, the originating mobile station receives the release command from the originating base station to start the release substate timer T55m and transition to the release substate (238).

Subsequently, the calling mobile station transmits a release command to the calling base station in response to the release substate (239). When the release substate timer expires, the calling mobile station stops the operation of the call channel transmitter and transitions to the system determination substate (240).

Thereafter, the originating base station receives the release command from the calling mobile station, reports the release request to the network (241), stops the call channel processing, and transitions to the base station idle state (242).

3A and 3B are flowcharts of an embodiment of a service capability negotiation process of an outgoing call processing method according to the present invention.

As shown in the figure, whether the calling base station cannot accept the service capability requested by the calling mobile station, or if the called base station and the mobile station cannot accept, the calling and called base stations and the called mobile station. It is checked whether this is an acceptable case or if the called mobile station proposes a new service capability (301).

As a result, if the calling base station cannot accept the service capability requested by the calling mobile station, the calling base station transmits a service response message indicating rejection to the calling mobile station, and transitions to the base station idle state (302). The calling mobile station transitions to a system decision substate (303).

As a result of the check, if the called base station and the mobile station cannot accommodate the service capability requested by the calling mobile station, the calling base station receives a service response message indicating rejection from the called base station and the mobile station and transmits it to the calling mobile station, The base station transitions to an idle state (304), and the calling mobile station transitions to a system determined substate (305).

As a result of the check, if there is a radio resource that the calling party and the called base station and the called mobile station can accommodate the service capability requested by the calling mobile station, the calling base station can accept the service capability requested by the calling mobile station. Notify the called base station (306), the called base station indicates the service capability of the calling mobile station in the service request message and transmits the service request message to the called mobile station (307), and the called mobile station receives the service connection message. Send to the calling mobile station through the base station and the calling base station (308), and the calling mobile station receives the service connection message and transmits the service connection completion message to the called mobile station through the calling base station and the called base station (309). ), The originating base station sends a channel assignment message that assigns multiple channels and W performs the same channel initialization (310).

If it is determined that the service capability requested by the calling mobile station cannot be accommodated, but the called mobile station proposes a new service capability, the called mobile station proposes a new service capability to the called base station through a service response message (311). The called base station notifies the calling mobile station that the called mobile station is proposing a new service capability through the calling base station (312), determines whether the calling mobile station can accept the new service capability (313) and accepts it. If not, the calling mobile station sends a service response message to the called mobile station through the calling base station and the called base station, which rejects the new service capability (314), the calling base station transitions to the idle state, and the calling mobile station Transition to system decision substate (315).

On the other hand, it is determined whether the calling mobile station can accommodate the new service capability (313) and if so, the calling mobile station transmits the service connection message to the called mobile station through the calling base station and the called base station (316). In operation 317, the called mobile station transmits a service connection completion message to the calling mobile station through the called base station and the calling base station, and the calling base station transmits a channel assignment message for allocating multiple channels and performs channel initialization. (318).

In addition, the service capability negotiation procedure is initiated when the calling mobile station requests a multimedia call, and the calling mobile station encodes the capability of the desired service in the service request message by encoding standard, information transmitting capability, negotiation indicator, external connection type, delivery mode, It is expressed and transmitted as information such as information transmission speed, unit speed, and symmetry.

4A to 4E are flowcharts illustrating an exemplary call processing method for multimedia call processing according to the present invention.

As shown in the figure, the mobile station identification number of the called mobile stations to be called by the called base station is set in the mobile station identification number area of each record of the call message, and then the call message is transmitted to the called mobile station through the call channel (401). ), The called mobile station receives the call message or the slot call message through the call channel in the idle state to detect whether there is a record containing its mobile station identification number, and if the call channel loss is declared, it transitions to the system decision substate. (402).

Then, the detection result is checked (403) and if the call is matched, it is determined whether the received configuration message serial number matches the stored value (404). If it is not matched, the stored value is updated (405). It determines if the number matches the stored value (406), if it does not match, sets the stored value to null (407), and if it matches, the call is answered within T33m seconds after the called mobile station receives the call message for a call response. The system transitions to the additional information update substate of the system connection state with the instruction (408).

Thereafter, the called mobile station starts the system connection state timer T41m, sets the current connection message sequence CURR_ACC_MSG_SEQ to the connection message sequence ACC_MSG_SEQs, and when the system connection timer expires, transitions to the mobile station initialization state (409). ). In order to be assured that the called mobile station is storing the latest access parameters, it must receive at least one message containing the access message sequence (ACC_MSG_SEQ) field.

Subsequently, it is checked whether the current access message sequence CURR_ACC_MSG_SEQ and the access message sequence ACC_MSG_SEQs are the same and not null in the configuration information stored in the destination mobile station (410). If the message sequence ACC_MSG_SEQs is the same and not null, the called mobile station stops the system connection state timer (411).

Then, it is determined whether the message of the call matching result is received through the current call channel (412), and if the call is received through the current call channel, the called mobile station transmits the call response message to the access channel through the access attempt to the called base station. Transition to the call answer substate (413), and the called base station receives the call answer message in the call substate to select a call channel, and transmits a channel assignment message and null call channel data (414). In operation 415, the called mobile station receives a channel assignment message from the called base station in the call answering sub-state and checks the allocation mode (ASSIGN_MODEr) region.

Thereafter, the result of the check is checked (416), if the call channel allocation with the allocation mode of '001' transitions to the sub-information update substate with the call indication (417), and the single call channel allocation or the allocation mode of '000' If the multi-call channel allocation is 100 ', the mobile station transitions to the call channel initialization substate (418).

Thereafter, it is determined whether the called-party mobile station has received null communication channel data from the called base station in T50m seconds in successive N5m good frames within T50m in the call channel initialization sub-state (419). In operation 420, the mobile station transmits the reverse pilot signal to the called base station in the call channel initialization substate (421).

Subsequently, it is determined whether the called base station receives the reverse pilot signal from the called mobile station to acquire the reverse call channel in the call channel initialization sub-state (422). If the receiving base station does not receive the reverse pilot signal, the called base station retransmits the channel assignment message. In operation 423, if the reverse pilot signal is received, the receiving base station recognizes that the reverse communication channel has been acquired, and transmits a base station confirmation command to the receiving mobile station (424).

Then, it is determined whether the called mobile station has received the base station confirmation command from the called base station within T51m seconds (425). If it fails to receive the base station confirmation command, the called mobile station transitions to an initialization state (426) and receives the base station confirmation command. If so, it transmits the null call channel data and the mobile station acknowledgment command to the called base station, starts the command wait timer T52m, and transitions to the command wait substate (427).

Thereafter, the receiving base station receives the mobile station acknowledgment command, starts the command waiting timer T52mb, and transitions to the command waiting sub state (428).

Thereafter, the called mobile station and the base station and the calling mobile station and the base station perform a service capability negotiation process (429), determine whether the multimedia call is accepted (430), and if the multimedia call is not accepted, the called mobile station enters the system decision substate. Transition (431), the destination base station transitions to the base station idle state (432).

On the other hand, it is determined whether the multimedia call is accepted (430), and when the multimedia call is accepted, the called base station transmits an information alert message to the called mobile station, starts the response wait state timer (T53mb), and transitions to the response wait state. (433).

Thereafter, the called-party mobile station receives the information alarm message to inform the user that the call has been received (434), stops the command timer, starts the response waiting timer (T53m), and then transitions to the response waiting sub-state to answer from the user. Wait (435).

Thereafter, when the called mobile station receives the response instruction from the user in the answer standby sub-state, it transmits a connection command to the called base station and transitions to the talk sub-state (436).

Thereafter, the called base station receives a connection command from the called mobile station, reports that the call is connected to the network, and transitions to the conversation substate (437).

Subsequently, the mobile terminal performs a multimedia call call (438), and determines the type of event generated during the multimedia call call (439). The release command is transmitted to the called base station (440), the release substate timer T55m is started, and the state transitions to the release substate (441).

Thereafter, the called base station receives the release command from the called mobile station and reports the release request to the network (442), sends a release command to the called mobile station (443), and starts the release sub-state timer T3b. Transmit to the release substate and transmit null call channel data to the called mobile station (444).

Thereafter, the called mobile station receives the command release release command from the called base station, stops the call channel transmitter operation, and transitions to the system decision substate (445).

Thereafter, the terminating base station stops the call channel processing when the release sub-state timer expires and transitions to the base station idle state (446).

On the other hand, when the receiving base station receives a release instruction from the network by determining the type of event generated during the multimedia call call (439), the receiving base station transmits a release command to the called mobile station (447), release sub-state timer It activates (T3b), transitions to the released substate, and transmits null call channel data (448).

Thereafter, the called mobile station receives the release command from the called base station to start the release substate timer T55m, and transitions to the release substate (449).

Thereafter, the called mobile station transmits a release command to the called base station in response to the release substate (450). When the release substate timer expires, the terminating mobile station stops the operation of the call channel transmitter and transitions to the system determination substate (451). .

Thereafter, the receiving base station receives the release command from the receiving mobile station, reports the release request to the network (452), stops the call channel processing, and transitions to the base station idle state (453).

5A and 5B are flowcharts illustrating an embodiment of a service negotiation process in an incoming call processing method according to the present invention.

As shown in the figure, whether the called base station cannot accept the service capability requested by the calling mobile station, or if the called mobile station cannot accept it, and the called base station and the called mobile station are assigned a new service capability. Check whether the proposed case (501).

As a result of the check, if there is no radio resource for the called base station to accommodate the service capability requested by the calling mobile station, the called base station notifies the calling base station that it cannot accept the service capability requested by the calling mobile station (502). The base station transitions to idle state (503).

As a result, when the called base station accepts the service capability requested by the calling mobile station but the called mobile station cannot accept, the called mobile station transmits a rejection service response message to the called base station, and the called mobile station determines the system. Transitioning to the negative state (504), the receiving base station receives the denial of service response message from the destination mobile station, transmits the denial of service response message to the calling base station, and transitions to the base station idle state (505).

As a result of the check, if there is a radio resource that the called base station can accommodate the service capability requested by the calling mobile station, the called base station transmits a service connection message to the called mobile station (506), and the called mobile station receives the called party. Send a service connection message to the base station (507), the destination base station sends the service connection message to the calling base station, transmits a channel assignment message for allocating multiple channels (508), and initializes the channel to the forward and reverse channels. Perform work (509).

If it is determined that the service capability requested by the calling mobile station cannot be accommodated, but the called mobile station proposes a new service capability, the called mobile station proposes a new service capability to the called base station through a service response message (510). The called base station notifies the calling mobile station that the called mobile station is proposing a new service capability through the calling base station (511), determines whether the calling mobile station can accept the new service capability (512) and accepts it. If not, the calling mobile station transmits a service response message for rejecting the new service capability to the called mobile station through the calling base station and the receiving base station (513), and the receiving base station receives the service response message for rejecting the new capability. Transition to the base station idle state, the destination mobile station transitions to the system decision sub-state (514) ).

On the other hand, it is determined whether the calling mobile station can accommodate the new service capability (512) and if so, the calling mobile station transmits the service connection message to the called mobile station through the calling base station and the called base station (515). The called mobile station transmits a service connection completion message to the calling mobile station through the called base station and the calling base station (516), and the called base station transmits a channel assignment message for allocating multiple channels and performs channel initialization. (517).

Meanwhile, among the messages used in the service capability negotiation procedure in multimedia call processing, (Table 1) below shows a service request message, (Table 2) shows a request purpose field (REQ_PURPOSE) of the service request message, and (Table 3) indicates a service response message, (Table 4) indicates a request purpose field (REQ_PURPOSE) of the service response message, (Table 5) indicates a service connection message, (Table 6) indicates a service connection completion message, Table 7 shows information elements of bearer capability, Table 8 shows coding information elements of transfer capability, Table 9 shows information transferability information elements of transfer capability, Table 10 shows the negotiation indicator information elements of the forwarding capability, Table 11 shows the external connection type information elements of the forwarding capability, Table 12 shows the forwarding mode information elements of the forwarding capability, and 13) shows the information delivery rate information element of the delivery capability, (Table 14) represents the configuration information elements of the delivery capability, (Table 15) represents the speed information element of the delivery capability, (Table 16) Represents a symmetry information element, and Table 17 shows a user encoding indicator information element of delivery capability. Also, the transmission unit speed information element of the transmission capability is expressed by an integer of one octet, and the unit is kbps.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

As described above, the present invention has an effect of efficiently providing end-to-end multimedia services having different requirements by performing multi-channel allocation and service capability negotiation in a code division multiple access method.

Claims (32)

An outgoing signal processing method for multimedia call processing applied to a mobile communication system, A first step in which a calling base station receives a calling message and transmits a channel assignment message and null call channel data, and a calling mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal to the calling base station; ; A second step in which the calling base station receives a reverse pilot signal to transmit a base station confirming command, and the calling mobile station receives a base station confirming command and transmits a mobile station confirming command and null call channel data to the calling base station; And A third step of when the calling mobile station transmits a service request message to the calling base station, the calling mobile station and the base station and the called base station and the mobile station perform a service capability negotiation to perform a multimedia call call; Call signal processing method for multimedia call processing comprising a. The method of claim 1, The first step is, A fourth step in which the calling base station receives a calling message and notifies the calling mobile station, and selects a call channel to transmit a channel assignment message and null call channel data to the calling mobile station; And A fifth step in which the calling mobile station receives a channel assignment message to check an allocation mode area, receives null call channel data, and transmits a reverse pilot signal to the calling base station; Call signal processing method for multimedia call processing comprising a. The method of claim 2, The fourth step, A sixth step of the originating mobile station transitions to an additional information update substate of a system connection state with a call instruction; If the configuration information stored in the calling mobile station is the same as the current access message sequence (CURR_ACC_MSG_SEQ) and the access message sequence (ACC_MSG_SEQs) are not null, and the sequence is the same but not null, the calling mobile station accesses the system. Stopping the state timer, transmitting a call message to the access channel through a connection attempt, and then transitioning to a mobile station call sub-state; And When the calling base station receives the calling message in the idle state, the mobile station transitions to a calling sub-state, selects a call channel in the calling sub-state, transmits a channel assignment message and null call channel data, and transitions to a call channel initialization sub-state. 8 steps Call signal processing method for multimedia call processing comprising a. The method of claim 2 or 3, The fifth step, A ninth step of checking, by the calling mobile station, an allocation mode region when the calling mobile station receives a channel assignment message in a call attempt substate; A tenth step of transitioning to an additional information updating sub-state or to a mobile station idle state with a call instruction if the allocation mode is a call channel assignment as a result of the check in the ninth step; An eleventh step of transitioning to a call channel initialization substate if the allocation mode is a single call channel assignment or a multiple call channel assignment as a result of the check of the ninth step; A twelfth step of determining whether the calling mobile station has received a null call channel data transmitted from the calling base station in a good frame in a call channel initialization substate; A thirteenth step in which the originating mobile station transitions to a mobile station initialization state if it is not received as a result of the determination in the twelfth step; And As a result of the determination of the twelfth step, if the reception is received, a fourteenth step of transmitting a reverse pilot signal to the calling base station in a call channel initialization substate; Call signal processing method for multimedia call processing comprising a. The method according to claim 1 or 2, The second step, A sixth step of determining whether the calling base station has received a reverse pilot signal from the calling mobile station in a call channel initialization substate; A seventh step of retransmitting a channel assignment message if the reverse pilot signal has not been received as a result of the determination of the sixth step; An eighth step of transmitting a base station confirmation command to the calling mobile station when a reverse pilot signal is received as a result of the sixth step determination; A ninth step of determining whether the originating mobile station has received a base station confirmation command from the originating base station; A tenth step of transitioning to a system determination sub-state if a determination result of the ninth step fails to receive a base station confirmation command; An eleventh step of transitioning to a conversation sub-state while transmitting a mobile station identification command and null call channel data when the determination result of the ninth step is received; And A twelveth step in which the calling base station receives a mobile station acknowledgment command from the calling mobile station and transitions to a conversation sub-state; Call signal processing method for multimedia call processing comprising a. The method of claim 5, The third step, A thirteenth step when the calling mobile station transmits a service request message to the calling base station, the calling mobile station and the base station and the called base station and the mobile station perform a service capability negotiation to perform a multimedia call call; And When the calling mobile station receives a call disconnection instruction from the user during the multimedia call call and the calling base station receives a release instruction from the network, the calling mobile station stops a call channel transmitter operation, and the calling base station makes a call. Fourteenth Step to Stop Channel Processing Call signal processing method for multimedia call processing comprising a. The method of claim 6, The thirteenth step, A fifteenth step of sending, by the calling mobile station, a service request message to the calling base station; A sixteenth step of performing a service capability negotiation process between the calling mobile station and the base station and the called mobile station and the base station, and determining whether a multimedia call is accepted; A seventeenth step in which the originating mobile station transitions to a system decision substate if the multimedia call is not accepted, and the originating base station transitions to a base station idle state; An eighteenth step of transmitting, by the calling base station, an alarm message to the calling mobile station when the multimedia call is accepted as a result of the determination of the sixteenth step; And A nineteenth step in which the calling mobile station receives an alert message from the calling base station to inform the user that a multimedia call is connected and performs a multimedia call call; Call signal processing method for multimedia call processing comprising a. The method of claim 6, The fourteenth step, Determining a type of event generated during a multimedia call call; A sixteenth step in which the calling mobile station stops a call channel transmitter operation when the calling mobile station receives a call disconnection instruction from a user as a result of the determination of the fifteenth step; And As a result of the determination of step 15, when the calling base station receives a release instruction from the network, the calling mobile station stops the call channel transmitter operation, and the calling base station stops processing the call channel. Call signal processing method for multimedia call processing comprising a. The method of claim 8, The sixteenth step, An eighteenth step of, when the calling mobile station receives a call disconnection instruction from the user, the calling mobile station transmits a release command to the calling base station, starts a release sub-state timer T55m, and transitions to a release sub-state; The originating base station receives a release command from the calling mobile station and reports the release request to the network, sends a release command to the calling mobile station, and the calling base station starts the release sub-state timer T3b. Transitioning to a release state and transmitting null call channel data to the calling mobile station; And The calling mobile station stops the call channel transmitter operation by receiving a release command from the calling base station, transitions to a system-determined sub state, and stops the call channel processing when the calling base station ends the release sub-state timer, Twenty-stage Transition to Base Station Idle State Call signal processing method for multimedia call processing comprising a. The method of claim 8, The seventeenth step, When the calling base station receives a release instruction from the network, the calling base station transmits a release command to the calling mobile station, activates a release sub-state timer T3b, transitions to a release sub-state, and null call channel data. An eighteenth step of transmitting a message to the calling mobile station; A nineteenth step of the originating mobile station receiving a release command from the originating base station to start a release sub-state timer T55m and transition to the release sub-state; A step 20 in which the calling mobile station transmits a release command to the calling base station in response to a release substate, stops a call channel transmitter operation when the release substate timer expires, and transitions to a system determined substate; And A twenty-first step in which the calling base station receives a release command from the calling mobile station and reports the release request to the network; Call signal processing method for multimedia call processing comprising a. The method of claim 6, In the thirteenth service capability negotiation process, A fifteenth step of checking whether the calling mobile station accepts the service capability requested; A sixteenth step of transmitting a service response message indicating a rejection if the originating base station is unacceptable as a result of the checking in the fifteenth step; As a result of checking in step 15, when the called base station and the mobile station cannot accept, the calling base station receives a service response message indicating rejection from the called base station and the mobile station and transmits it to the calling mobile station. step; As a result of the checking in step 15, if the calling party and the called base station and the called mobile station can accommodate, the called mobile station transmits a service connection message to the calling mobile station, and the calling mobile station completes the service connection. An eighteenth step of transmitting a message to the called mobile station; And As a result of the checking in step 15, when the called mobile station proposes a new service capability, it checks whether the calling mobile station can accept the new service capability, and the calling mobile station transmits a service connection message to the called mobile station. And the called party mobile station transmits a service completion message to the calling party mobile station. Call signal processing method for multimedia call processing comprising a. The method of claim 11, The sixteenth step, A 20th step in which the calling base station transmits a service response message indicating rejection to the calling mobile station; And A twenty-first step in which the calling base station makes a transition to a base station idle state and the calling mobile station makes a transition to a system determined substate; Call signal processing method for multimedia call processing comprising a. The method of claim 11, The seventeenth step, A 20th step of receiving, by the calling base station, a service response message indicating rejection from the called base station and the mobile station and transmitting the received service response message to the calling mobile station; And A twenty-first step in which the calling base station makes a transition to a base station idle state and the calling mobile station makes a transition to a system determined substate; Call signal processing method for multimedia call processing comprising a. The method of claim 11, The eighteenth step, A twenty step of the originating base station notifying the called base station that the calling mobile station can accommodate the service capability requested by the calling mobile station; A twenty-first step of the terminating base station displaying the service capability of the originating mobile station in a service request message and transmitting it to the terminating mobile station; A twenty-second step of the called mobile station transmitting a service connection message to the calling mobile station through the called base station and the calling base station; A twenty-third step in which the calling mobile station receives a service connection message and transmits a service connection completion message to the called mobile station through the calling base station and the called base station; And A twenty-fourth step in which the calling base station transmits a channel assignment message for allocating multiple channels and performs the same channel initialization for the forward channel and the reverse channel; Call signal processing method for multimedia call processing comprising a. The method of claim 11, The nineteenth step, A twenty-stage step, wherein the called mobile station proposes a new service capability to the called base station through a service response message; A twenty-first step in which the called base station notifies the calling mobile station that the called mobile station is proposing a new service capability through the calling base station, and determines whether the calling mobile station can accept the new service capability; step; A twenty-second step of transmitting a service response message for rejecting a new service capability by the calling mobile station to the called mobile station through the calling base station and the called base station if it is unacceptable as a result of the determination in the twenty-first step; A twenty-third step of the originating base station transitioning to an idle state and the originating mobile station transitioning to a system determined substate; A twenty-fourth step of transmitting, by the calling mobile station, a service connection message to the called mobile station through the calling base station and the called base station if it is acceptable as a result of the determination in the twenty-first step; A twenty-fifth step, wherein the called mobile station transmits a service connection completion message to the calling mobile station through the called base station and the calling base station; And A twenty-sixth step, wherein the calling base station transmits a channel allocation message for allocating multiple channels and performs a channel initialization; Call signal processing method for multimedia call processing comprising a. In the incoming call processing method for multimedia call processing applied to a mobile communication system, A first step in which a called base station transmits a call message to a called mobile station, and the called mobile station receives a call message and transmits a call response message to the called base station; The called base station receives a call response message and transmits a channel assignment message and null call channel data, and the called mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal to the called base station. Second step; A third step in which the called base station receives a reverse pilot signal to transmit a base station confirm command, and the called mobile station receives a base station confirm command and transmits a mobile station confirm command and a null call channel data to the called base station; And A fourth step in which a calling party and the base station and the called base station and the mobile station perform a service capability negotiation to perform a multimedia call call Call processing method for multimedia call processing comprising a. The method of claim 16, The first step is, A fifth step of setting, by the called base station, the mobile station identification information of the called mobile station in the mobile station identification information area of each record of the call message, and then transmitting a call message to the called mobile station through a call channel; A sixth step in which the called-party mobile station receives a call message to detect whether there is a record including its mobile station identification information, and sets the current connection message sequence CURR_ACC_MSG_SEQ to the connection message sequence ACC_MSG_SEQs; And A seventh step in which the called mobile station checks the stored configuration information and transmits a call response message to the called base station through an access channel through an access attempt; Call processing method for multimedia call processing comprising a. The method of claim 17, The sixth step, An eighth step in which the called mobile station receives a call message or a slot call message through a call channel in an idle state and detects whether there is a record including its mobile station identification information; A ninth step of checking the detection result to check whether the received configuration message serial number matches the stored value if the call is matched, and if not, to update the stored value, and if it matches, to determine whether the received connection message serial number matches the stored value. step; A tenth step of setting the stored value to null by the called-party mobile station if it does not match as a result of the determination in the ninth step; As a result of the ninth step, when the matched mobile station receives a call message for a call response if it matches, an eleventh step of transitioning to an additional information updating substate of a system connection state with a call response indication; And A twelveth step in which the called mobile station starts a system connection state timer T41m, sets the current connection message sequence CURR_ACC_MSG_SEQ to the connection message sequence ACC_MSG_SEQs, and transitions to the mobile station initialization state when the system connection timer expires. Call processing method for multimedia call processing comprising a. The method of claim 17 or 18, The seventh step, The current access message sequence (CURR_ACC_MSG_SEQ) and access message sequence (ACC_MSG_SEQs) are identified by checking whether the current access message sequence (CURR_ACC_MSG_SEQ) and the access message sequence (ACC_MSG_SEQs) are identical and not null in the configuration information stored in the called-party mobile station. (13) if the destination mobile station stops a system connection state timer if is the same and not null; And The called party mobile station checks whether a call matching result message is received through the current calling channel, and if it is received through the current calling channel, transmits a call response message to the called base station through the access attempt through the access attempt, and calls. Fourteenth Step to Transition to Response Negative State Call processing method for multimedia call processing comprising a. The method according to claim 16 or 17, The second step, An eighth step of the called base station receiving a call response message in a call sub-state, selecting a call channel, and transmitting a channel assignment message and null call channel data; A ninth step in which the called mobile station receives a channel assignment message from the called base station in a call response sub-state to check an assigned mode region; A tenth step of transitioning to an additional information updating substate with a call instruction if the allocation mode is a call channel assignment as a result of the ninth step; An eleventh step of transitioning to a call channel initialization substate if the allocation mode is a single call channel assignment or a multiple call channel assignment as a result of the check of the ninth step; A twelfth step of determining whether the called mobile station has received null talk channel data in a good frame from the called base station in a call channel initialization substate; A thirteenth step in which the called-party mobile station transitions to a mobile station initialization state if it is not received as a result of the determination in the twelfth step; And As a result of the determination of the twelfth step, if the reception is received, a fourteenth step of transmitting a reverse pilot signal to the called base station in a call channel initialization substate Call processing method for multimedia call processing comprising a. The method of claim 20, The third step, A fifteenth step of determining whether the called base station has received a reverse pilot signal from the called mobile station in a call channel initialization substate; A sixteenth step of retransmitting a channel assignment message by the called base station if the reverse pilot signal has not been received as a result of the determination of the fifteenth step; A seventeenth step of transmitting, by the called base station, a base station confirmation command to the called mobile station if the reverse pilot signal is received as the determination result of the fifteenth step; An eighteenth step of determining whether the called mobile station has received a base station confirmation command from the called base station; A nineteenth step in which the called-party mobile station transitions to an initialization state if it has not received the base station confirmation command as a result of the determination in the eighteenth step; As a result of the determination in the eighteenth step, when a base station confirmation command is received, a null call channel data and a mobile station confirmation command are transmitted to the called base station, and a command waiting timer T52m is activated to transition to a command waiting substate. step; And A twenty-first step in which the called base station receives a mobile station acknowledgment command, starts a command waiting timer T52mb, and transitions to a command waiting sub-state; Call processing method for multimedia call processing comprising a. The method of claim 21, The fourth step, A twenty-second step of performing a service call negotiation between the calling mobile station and the base station and the called base station and the mobile station to perform a multimedia call call; And When the called mobile station receives a call disconnection instruction from a user during the multimedia call call, and the called base station receives a release instruction from the network, the called mobile station stops a call channel transmitter operation and the called base station calls. 23rd step to stop channel processing Call processing method for multimedia call processing comprising a. The method of claim 22, The twenty-second step is A twenty-fourth step of performing a service capability negotiation process between the called mobile station and the base station and the calling mobile station and the base station, and determining whether a multimedia call is accepted; A twenty-fifth step in which if the multimedia call is not accepted, the called mobile station transitions to a system decision substate; and the called base station transitions to a base station idle state; As a result of the determination in the twenty-fourth step, when the multimedia call is accepted, the called base station transmits an information alert message to the called mobile station, activates the response wait state timer T53mb, and transitions to the response wait state. step; The destination mobile station receives an information alert message to inform the user that the call has been received, stops the command timer, starts the response waiting timer (T53m), and transitions to the response waiting sub-state to wait for a response from the user. step; A twenty-eighth step of transmitting a connection command to the called base station when the called mobile station receives a response instruction from the user in the answer standby sub-state, and transitions to the talk sub-state; And Step 29, wherein the called base station receives a connection command from the called mobile station, reports that the call is connected to the network, transitions to a busy state, and performs a multimedia call call; Call processing method for multimedia call processing comprising a. The method of claim 22, The twenty-third step, Determining a type of event generated during a multimedia call call; As a result of the determination in the twenty-fourth step, when the called mobile station receives a call disconnection instruction from the user during a call in the talk substate, the called mobile station stops the call channel transmitter operation, and the called base station stops processing the call channel. A twenty-fifth step; And In step 26, when the called base station receives a release instruction from the network, the called mobile station stops the call channel transmitter operation; and the called base station stops the call channel processing. Call processing method for multimedia call processing comprising a. The method of claim 24, The 25th step, A twenty-seventh step of, when the called mobile station receives a call disconnection instruction from a user, the called mobile station transmits a release command to the called base station, starts a release sub-state timer (T55m), and transitions to a release sub-state; The called base station receives a release command from the called mobile station and reports a release request to the network, sends a release command to the called mobile station, and the called base station starts the release sub-state timer T3b; Transitioning to a release substate and transmitting null call channel data to the called-party mobile station; And The terminating mobile station receives a release command from the terminating base station, stops a call channel transmitter operation, transitions to a system-determined negative state, and ceases a call channel processing when the terminating base station is terminated; 29th step of transition to base station idle state Call processing method for multimedia call processing comprising a. The method of claim 24, The 26th step, When the called base station receives a release instruction from the network, the called base station transmits a release command to the called mobile station, starts a release sub-state timer T3b, transitions to the release sub-state, and null call channel data. A 27th step of transmitting a message to the called-party mobile station; A twenty-eighth step in which the called mobile station receives a release command from the called base station to start a release sub-state timer T55m and transition to the release sub-state; A step 29 of the called mobile station transmitting a release command to the called base station in response to the release sub-state, stopping the call channel transmitter operation when the release sub-state timer expires, and transitioning to a system decision sub-state; And The thirtieth step, wherein the called base station receives a release command from the called mobile station, reports the release request to the network, stops processing of the call channel, and transitions to the base station idle state; Call processing method for multimedia call processing comprising a. The method of claim 22, The service capability negotiation process of the twenty-second step, A twenty-fourth step of checking whether the calling mobile station accepts the service capability requested; A twenty-fifth step of informing the calling base station that the called base station cannot accept the requested service capability if the called base station cannot accommodate the checked result of the twenty-fourth step; A twenty sixth step of sending, by the called base station, a denial of service response message to the calling base station if the called mobile station cannot accept it as a result of checking in the twenty-fourth step; As a result of checking in step 24, if the called base station and the mobile station can accommodate, the called mobile station transmits a service connection message to the called base station, and the called base station transmits a service connection complete message to the calling base station. Transmitting to the 27th step; And As a result of the check in step 24, when the called mobile station proposes a new service capability, it checks whether the calling mobile station can accept the new service capability, and the calling mobile station transmits a service connection message to the called mobile station. And the twenty-eighth step of the called mobile station transmitting a service completion message to the calling mobile station. Call processing method for multimedia call processing comprising a. The method of claim 27, The 26th step, A twenty-ninth step, wherein the called mobile station transmits a denial of service response message to the called base station and transitions to a system determined substate; And Step 30, the called base station receives the rejected service response message from the called mobile station, transmits the rejected service response message to the calling base station, and transitions to the base station idle state; Call processing method for multimedia call processing comprising a. The method of claim 27, The 27th step, A twenty-ninth step, wherein the called base station sends a service connection message to the called mobile station, and the called mobile station sends a service connection message to the called base station; And The called base station transmitting a service connection message to the calling base station, transmitting a channel assignment message for allocating multiple channels, and performing channel initialization on a forward channel and a reverse channel; Call processing method for multimedia call processing comprising a. The method of claim 27, The 28th step, A twenty-ninth step, wherein the called mobile station proposes a new service capability to the called base station through a service response message; A thirtieth, wherein the called base station notifies the calling mobile station that the called mobile station is proposing a new service capability through the calling base station, and determines whether the calling mobile station can accept the new service capability; step; A thirty-first step of transmitting a service response message for rejecting a new service capability by the calling mobile station to the called mobile station through the calling base station and the called base station if it is unacceptable as a result of the determination in step 30; Step 32, wherein the called base station receives a service response message for rejecting a new capability and transitions to an idle state of the base station, and wherein the called mobile station transitions to a system decision substate; A thirty-third step of transmitting, by the calling mobile station, a service connection message to the called mobile station through the calling base station and the called base station, if it is acceptable; And The called mobile station transmits a service connection completion message to the calling mobile station through the called base station and the calling base station, and the called base station transmits a channel assignment message for allocating multiple channels and performs a channel initialization task. 34th Step Call processing method for multimedia call processing comprising a. In a mobile communication system having a large capacity processor, A first function in which a calling base station receives a calling message and transmits a channel assignment message and null call channel data, and a calling mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal to the calling base station; ; A second function in which the calling base station receives a reverse pilot signal and transmits a base station confirming command, and the calling mobile station receives a base station confirming command and transmits a mobile station confirming command and null call channel data to the calling base station; And A third function of transmitting a service request message to the calling base station by the calling mobile station and the base station and the called base station and the mobile station by performing a service capability negotiation to perform a multimedia call call; A computer-readable recording medium having recorded thereon a program for realizing this. In a mobile communication system having a large capacity processor, A first function, wherein a called base station transmits a call message to a called mobile station, and the called mobile station receives a call message and transmits a call response message to the called base station; The called base station receives a call response message and transmits a channel assignment message and null call channel data, and the called mobile station receives a channel assignment message and null call channel data and transmits a reverse pilot signal to the called base station. Second function; A third function wherein the called base station receives a reverse pilot signal and transmits a base station confirm command, and the called mobile station receives a base station confirm command and transmits a mobile station confirm command and a null call channel data to the called base station; And A fourth function of the calling mobile station and the base station and the called base station and the mobile station performing a multimedia call call by negotiating service capability; A computer-readable recording medium having recorded thereon a program for realizing this.