KR20000046365A - Method for processing originating call through service negotiation in mobile communication switching system - Google Patents

Abstract

The present invention relates to a method for processing an outgoing call through service negotiation in a mobile communication switching system.

The present invention relates to a mobile communication switching system in which an originating mobile terminal (MS) can process an outgoing call through a base station (BS), a mobile communication exchange (MSCo), and a visited location register (VLRo). Attempting to make a call to a base station and a mobile communication switch; After the base station requests the call processing through a setup message from the mobile communication exchange, establishing a channel with the calling mobile terminal through the first assigned channel; Requesting the mobile terminal to negotiate a service according to a specific configuration through a base station, and the mobile communication exchange determines whether to permit the requested service configuration and negotiates; And allocating, by the originating mobile terminal, resources according to the determined result of the negotiation and waiting for a connection from the called party.

Therefore, the present invention enables a subscriber to configure a desired service through service negotiation between the subscriber and the network in the mobile communication system, thereby providing convenience to the subscriber and enabling various configurations.

Description

Method of processing originating calls according to service negotiation in a personal communication exchange system

The present invention relates to an outgoing call processing method in a mobile communication switching system, and more particularly, to a method for processing an outgoing call through service negotiation.

With the development of mobile communication technology, a personal communication system (PCS) has been introduced to satisfy the human desire to communicate freely with anyone at any time, anywhere, and provides commercial services.

However, when any subscriber processes the mobile call in the mobile communication switching system, the service is limited to the default form initially set or provided by the mobile communication network, so that various services can be configured according to the needs of the mobile subscriber. There is no problem.

Accordingly, the present invention provides a method for processing outgoing calls through service negotiation in a mobile communication exchange system capable of processing an outgoing call through a service configuration between a subscriber and a network in a mobile communication exchange system to solve the above problems. There is a purpose.

In order to achieve the above object, the method of the present invention is such that an originating mobile terminal (MS) is connected to a base station (BS), a mobile communication switchboard (MSCo), and a visited location register (VLRo) to process an outgoing call. A mobile communication switching system, comprising: an originating mobile terminal attempting to make a call to a base station and a mobile communication switch; After the base station requests call processing through a setup message to the mobile communication switch, establishing a channel with an originating mobile terminal through an initially assigned channel; Requesting a mobile terminal to negotiate a service according to a specific configuration through a base station, and the mobile communication exchange determines whether to permit the requested service configuration and negotiates; And re-allocating resources by the originating mobile terminal according to the configuration determined as a result of the negotiation and waiting for a connection from the called party.

1 is a block diagram showing the configuration of a typical mobile communication system suitable for application of the present invention;

FIG. 2 is a schematic structural block diagram of the mobile communication switch shown in FIG. 1;

3 is a flowchart illustrating a method of processing an outgoing signal through service negotiation in a mobile communication switch according to the present invention;

4 is a signal flow diagram of an embodiment according to the present invention.

* Explanation of symbols for main parts of the drawings

10: subscriber station 20a, 20b, 20c: base station

30a, 30b, 30c: base station controller 40: mobile communication exchange

50: Certification Center 72a-n: ASS-W

78: INS 80: ASS-T

96: HLR 98: VMS

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

1 is a block diagram showing the configuration of a typical mobile communication system suitable for applying the present invention. Referring to FIG. 1, a mobile communication system includes a subscriber station (i.e., a mobile phone: 10), a plurality of base stations 20a, 20b, and 20c, and base station controllers 30a, 30b, and 30c for managing the device stations, and mobile communication. A switch 40, an authentication center 50, and the like, and the mobile communication switch (PCX) 40 is connected to the other switch 60 through a trunk.

As shown in FIG. 2, the mobile communication switch (PCX) 40 illustrated in FIG. 1 includes the ASS-W 72a to 72n, the ASS-S 76, the INS 78, the CCS 84, and the ASS. -7 (82), ASS-T (80) subsystem, the ASS-W (72a to 72n) is connected to the base station controller (30a to 30n), the general subscriber subscriber terminal 74 is ASS-S ( 76), other exchanges 60, PSTN 92, ISDN 94, subscriber information processing device (HLR: 96), voice mail system (VMS: 98), etc., to the ASS-T 80; It is connected. That is, the mobile switching center 40 is divided into a central control subsystem, a network control subsystem, and a matching exchange subsystem, each of which includes a main processor (MP), a peripheral processor (PP), and peripheral devices. The mobile communication switch 40 includes an ASS-W 72a-72n for providing a call processing function by connecting a wireless base station to a conventional TDX-10 series switch, and storing and managing information on mobile subscribers. A VLR is added to perform the routing function. In such a mobile communication system, authentication and encryption functions, location registration, and handover functions are required for PCS mobile call processing and mobility management.

In FIG. 2, a subscriber location processing device (HLR) 96 processes location information of a subscriber, and a voice mail service system (VMS) 98 provides a voice mail service to a subscriber.

3 is a flowchart illustrating a method of processing an outgoing call through service negotiation in a mobile communication switch according to the present invention.

Referring to FIG. 3, an outgoing call processing procedure through service negotiation includes an outgoing attempt process (S1), a call setup process (S2), a channel assignment process (S3), a service negotiation process (S4), and an access process (S5). Is done. That is, according to the present invention, a step (S1) in which an originating mobile terminal attempts to access a base station and a mobile communication switch, and after the base station requests call processing through a setup message in the mobile communication exchange, is performed through an initially assigned channel. Step of establishing a channel with the terminal (S2, S3), the mobile terminal requests the mobile communication exchange to negotiate a service according to a specific configuration through the base station, the mobile communication exchange determines whether to allow the requested service configuration negotiated (S4); And (S5) the originating mobile terminal reassigns resources according to the configuration determined as a result of the negotiation and waits for a connection from the called party.

As shown in FIG. 4, the mobile terminal starts and processes outgoing signals through a service configuration according to the present invention. As shown in FIG. 4, an outgoing mobile terminal (MS), an outgoing base station (BS), and an outgoing mobile communication exchange (MSCo) are shown. ), A signaling procedure transmitted between the calling visited location register (VLRo), the subscriber information processing device (HLR), the called visited location register (VLRt), and the called mobile communication exchange (MSCt).

4, 'MS' represents a mobile terminal, 'BS' represents a base station, and 'MSCo' represents an originating mobile communication exchange. 'VLRo' represents the calling party location recorder, 'HLR' represents the subscriber information processing device, 'VLRt' represents the called party location recorder, and 'MSCt' represents the called party's mobile communication switch.

The calling party location register (VLRo) is a mobile communication matching control (PCSI) block, a mobile communication call processing (PCC) block, a number translation (NTR) block, a routing control (RCO) block, a user part control (UPC) block, and a call. It includes a Processing Service Control (CPSC) block, which is a PCS Interface Control (PCSI), which is mounted in the ASP in the ASS-W, and manages the link management, mobility management, and interface messages between the exchange and the base station controller (BSC). It handles encoding / decoding functions, SCCP and matching functions. A PCC Call Control Block (PCC) is implemented in the ASP in the ASS-W, which handles the origination and reception of mobile subscribers. That is, the mobile communication call processing (PCC) block processes the signal of the mobile communication subscriber received from the mobile communication matching control (PCSI) block, and provides information required for the mobile communication subscriber call processing through the location registration call control (LCC) block. Collects, obtains roaming numbers of incoming mobile subscribers from subscriber information processing unit (HLR) in conjunction with call processing service control (CPSC) block, requests number translation in NTR block, and local service (LSL) block Controls the signaling equipment and switch connections. In case of own call, it interworks with analog subscriber control (ASC) block and in case of outgoing call or incoming call, it interlocks with user part control (UPC) block. In addition, interworking with the handoff control (HOC) block for handoff processing, and controls the additional service request of the mobile subscriber in conjunction with the additional processing service block.

Number Translation (NTR) blocks and Route Control (RCO) blocks are implemented in the Number Translation Processor (NTP) in the INS. The Routing Control (RCO) blocks specify the routing and bypass routing paths and traffic for the path. Perform the restriction function and perform the call restriction function. In addition, it performs network management function and performs network management related statistical function to notify it when requested in statistical block. It performs routing function by receiving handoff routing request in PCS call processing. Here, routing is a function of determining an arbitrary access switching processor (ASP) belonging to a corresponding path for occupying a relay line, and bypass routing is a function of requesting connection of a call to a bypass path when there is no direct connection line. Call restriction function is to interlock with network management block to restrict call by path or to perform protective or expansion measures to guarantee priority call.

The User Part Control (UPC) block is mounted in an Access Switching Processor (ASP) in ASS-T, and is an outgoing call of ISDN User Part (ISUP) signaling, which is a type of common line signaling. Incoming call, relay call processing and status management are performed. The user control unit (UPC) block interlocks with the routing control (RCO) block to occupy the outgoing line of a specific route selected by the routing control (RCO) block, or is notified of the incoming line occupancy request from the user mismatch (UPI) block. Matching between UPI blocks assists in troubleshooting and closing and restoring relay lines. In addition, the user control unit (UPC) block receives the outgoing line request from the mobile subscriber processing block, processes it, and if the translation number of the station number is found at the incoming line, the subscriber information processing device (HLR) through the call processing service control (CPSC) block. ) To obtain the dial number (TLDN), and then perform the relay call or incoming call processing by using it.

The Call Processing Service Control (CPSC) block is a block that performs the operation procedure. The basic function of the parameter of the component is described by referring to the related functions of application process and operation, indication number and dialog number management, and operation / error definition. Performs encoding and decoding function, and classifies the operation and displays the timer value.

A location registration call control (LCC) block is a block that is mounted in an INS and provides data for mobile subscriber call processing. The location registration call control (LCC) block provides outgoing subscriber information to the mobile communication call processing (PCC) block when the mobile subscriber makes an outgoing call, and controls the incoming mobile subscriber information when the incoming mobile subscriber responds to paging. If a request is made to transmit a block and the number (TLDN) is allocated for the subscriber's incoming call, the function performs the function of assigning the number (TLDN).

The subscriber information processor (HLR) is a database management system that stores and manages subscriber parameters and location information for all terminals registered in its own PCN. The HLR needs to register important data such as terminal access capability, basic service, and supplementary service, and performs routing function of called subscriber.

After examining the function of each block as described above, the signal flow in the embodiment of the present invention will be described.

Referring back to FIG. 4, an origination message is transmitted from the originating mobile station MS to the base station BS, whereby the base station BS transmits a base station acknowledgment signal to the originating mobile station MS. To provide.

Subsequently, the BS transmits a completion message (Complete L3 Info: CM Service Request [Service Negotiation Indicator]) to the calling MSCO, and the MSCO sends a SCCP Connection Confirm. Pass the message. That is, the base station (BS) informs the mobile communication exchange (MSCo) that the service negotiation is required by delivering a service negotiation indication ([Service Negotiation Indicator]) information element, and thus the mobile communication exchange (MSCo) has established the SCCP connection Inform the base station BS. Subsequently, if the mobile station identifier (MID) is TMSI, the MSCO transmits a Mobile Information Directives message including information of IMSI, MIN, ESN, and the like.

Subsequently, the base station (BS) transmits a setup message to request an outgoing call setup to the mobile communication exchange (MSCo), and the mobile communication exchange (MSCo) instructs the call progress (Call Proceeding) to the base station (BS). In addition, the MSCO indicates wireline and radio resource allocation (Assignment Request).

When the originating mobile station MS is not on the traffic channel, the base station BS transmits a channel assignment message to the originating mobile station MS through the paging channel. The originating mobile station (MS) transmits a traffic channel preamble (Tch Preamble). When the BS receives the reverse traffic channel, the BS transmits a message (BS Ack Order) through the forward traffic channel. Accordingly, the MS transmits a message (MS Ack. Order).

Subsequently, in order to perform service negotiation by the calling mobile terminal MS, the calling mobile terminal MS transmits a service request message with a requested service configuration including a service configuration required by the base station BS. The base station BS transmits a change service request message (Change Service Request [Service Negotiation Query with Query field = 0]) including the service negotiation query information element to the MSC. The MSCO includes a Change Service Confirm [authorized Service] message indicating that the service configuration has been verified, including a verified (i.e. authorized) service configuration record and a Circuit Identity Code (CIC) information element. Confirm Record & CIC]) is transmitted to the BS. The base station BS delivers a service connect message to the calling mobile station MS upon completion of service negotiation, that is, as the service configuration record is completed. The originating mobile station (MS) performs traffic channel frame processing upon completion of service negotiation, that is, according to the service configuration record, and transmits a service connection completion message to the base station BS.

After the wired and radio resources have been set up through service negotiation, the base station (BS) transmits an assignment completion message to the mobile communication exchange (MSCo), and the mobile communication exchange (MSCo) to the base station (BS) Delivers an alerting message indicating that this is in progress. At this time, a ring back tone is received from the called party. Then, the incoming mobile terminal MS responds, and the calling mobile terminal MS responds, so that a connection is established and the call is possible.

As described above, according to the present invention, the mobile communication system enables the subscriber to configure the desired service through service negotiation between the subscriber and the network, thereby providing convenience to the subscriber and enabling various configurations.

Claims (2)

In a mobile communication switching system in which an outgoing mobile terminal (MS) is connected to a base station (BS), a mobile communication exchange (MSCo) and a visited location register (VLRo) to process outgoing calls. An originating mobile station (MS) attempting to make a call to a base station and a mobile communication exchange (MSCo); After the base station requests call processing through a setup message from a mobile communication exchange (MSCo), establishing a channel with an originating mobile terminal through an initially assigned channel; Requesting, by the mobile terminal, the mobile communication exchange (MSCo) to negotiate a service according to a specific configuration through a base station, and the mobile communication exchange (MSCo) determines whether to permit the requested service configuration and negotiates; And And a method for allocating resources by the originating mobile terminal according to the determined result of the negotiation and waiting for a connection from the called party. The method of claim 1, wherein negotiating the service configuration Transmitting, by the originating mobile station (MS), the service request message to the base station (BS); Transmitting, by the base station BS, a change service request message including a service negotiation query information element to a mobile communication exchange (MSCo); The mobile communication exchange (MSCo) forwarding a change service confirmation message including the identified service configuration record information element to the base station (BS); Transmitting, by the base station BS, the service access message to the originating mobile station MS upon completion of the service negotiation; And the originating mobile terminal (MS) performs a traffic channel frame processing according to the completion of the service negotiation, and transmits the service access completion message to the base station (BS). Treatment method.