KR20150024690A - Method and apparatus for separating billing of user equipment based on state of equipment - Google Patents

Abstract

A method for separating billing of user equipment based on a state of the equipment comprises the steps of: monitoring whether a first call drop caused by a handover failure or a second call drop caused by detachment of a battery occurs in the user equipment in the middle of communications; generating a release request message including a first call drop separator or a second call drop separator when the first call drop or the second call drop occurs; and transmitting the generated release request message to a billing node side in order to apply selective deduction to call billing.

Description

[0001] METHOD AND APPARATUS FOR SEPARATING BILLING OF USER EQUIPMENT BASED ON STATE OF EQUIPMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a billing separation method for a mobile communication terminal, and more particularly, The present invention relates to a method and apparatus for separating a billing based on a terminal status, which is suitable for subtracting the time required for call break detection from a call charge of a terminal.

As is well known, in 3GPP Release 8, EPC (Evolved Packet Core), which is a network architecture, is described as one of mobile communication systems. EPC is a network for 3GPP LTE (Long Term Evolution) It is a set of nodes.

This EPC evolves the core network of the existing 3GPP system architecture to support Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN), which is an evolved RAN, It has an efficient network structure in which the network node is simplified. A wireless communication system including an EPC and an E-UTRAN may be referred to as an evolved packet system (EPS), and an LTE mobile communication system currently in service in Korea can be regarded as such.

Meanwhile, in the initial stage of establishing an LTE mobile communication system, a mixed communication environment with a legacy network such as a WCDMA mobile communication system is shown. In such a communication environment, it is possible to connect to an LTE network and also to a WCDMA (Wideband Code Division Multiple Access) A dual mode mobile communication terminal device (communication terminal) capable of connecting to the same legacy network can be operated. In the early stage of the LTE mobile communication service, a WCDMA mobile communication system was used to provide a voice communication service to a dual mode mobile communication terminal, and an LTE mobile communication system was used to provide a data communication service.

Unlike the above, VoLTE service enables not only data communication but also voice communication to be realized through the LTE mobile communication system. This VoLTE service is also called HD (High Definition) voice service. According to the VoLTE service, it is possible to provide a cleaner HD audio call service in case of voice call, and users can see the same screen You can share content such as maps, music, news, photos, and so on.

In such an LTE mobile communication system, location information of a communication terminal is managed in units of an eNodeB functioning as a base station device for mobility management of the communication terminal. That is, the location of the communication terminal is managed through signaling between the Mobility Management Entity (MME) functioning as the mobility management node and the eNodeB, and the location information of the communication terminal managed in this manner is transmitted to the SGW (PDN Gateway) through a Serving Gateway.

Meanwhile, when a call is dropped during a call between a calling terminal and a called terminal, for example, when a called terminal fails to attempt handover to a neighboring base station due to a weak signal strength, or when a battery of the called terminal is disconnected, In this case, the base station generates a UE Context Release Request message and sends it to the network node side to notify the call termination at the called terminal. In response, the PGW of the network node sends a Context Release Request message, (E.g., 10 seconds, 15 seconds, 20 seconds, etc.) for the detection of the call disconnection at the billing node.

Generally, it takes a few seconds (for example, about 2-4 seconds) to judge (detect) a call disconnection due to a handover failure at a base station, and it is necessary for the base station to judge It is known that it takes 10 seconds (for example, 10 seconds, 15 seconds, 20 seconds, etc.), which may vary depending on the network environment. However, It is a well-known fact that the time required for judging cutting is relatively short.

However, in the conventional method, since only the same call disconnect message is transmitted without providing cause information (handover failure or battery hernion) of the call break, the reference time for subtracting the detection time of call break from the billing node is relatively The long time required to cover the time required for the long battery herniation is set to be long and the long time required for deduction for the calling charge of the calling terminal is subtracted every time the call is disconnected.

As described above, the application of a relatively long time difference to the call charge is a major factor in lowering the reliability of the call charge, regardless of the cause of the call cut, Which is a cause of disadvantages to the operators.

Furthermore, considering the fact that call truncation due to handover failure occurs much more frequently than call truncation due to battery herniation, the credibility of currency billing and the disadvantages of operators are becoming more and more conspicuous.

Korean Registered Patent Publication No. 10-0879851, filed on January 22, 2009.

The present invention determines the cause of a call disconnection when a call disconnection occurs during a call between two terminals, that is, whether the call disconnection is a call disconnection due to a handover failure or a disconnection due to a battery hernion, , A new billing separation scheme is proposed, which can selectively deduct the predetermined time required for each call according to the cause of call truncation.

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved not mentioned can be clearly understood by those skilled in the art from the following description .

According to one aspect of the present invention, there is provided a method for controlling a mobile terminal, comprising the steps of: monitoring whether or not a first call interruption due to a handover failure or a second call interruption due to a battery hernal call occurs from a terminal in a call; Generating a release request message including a first cut delimiter or a second call delimiter when a call interruption occurs, and generating a release request message, which is generated in order to selectively apply a deduction to the call charge, The method comprising the steps of: transmitting a signal to a node side;

According to another aspect of the present invention, there is provided a mobile communication system including a first terminal state management unit for monitoring whether a first call is disconnected due to a handover failure from a terminal in a call, A second terminal state management unit for monitoring whether or not the first call disconnecting or second call disconnecting is performed, and a second terminal state managing unit for monitoring whether or not the first call disconnecting or second call disconnecting is selected, And a message sending unit for sending the generated release request message to the billing node side for selective deduction application to the call charge.

According to another aspect of the present invention, there is provided a method for processing a call, comprising the steps of: receiving a release request message including call separation delimiter information from a network; Determining whether the second call is disconnected due to a battery hernion or not and a step of selectively applying the time required for detecting the first call disconnect or the second call disconnect to the calling charge of the calling terminal in accordance with the determination result Based on the terminal state information.

According to another aspect of the present invention, there is provided a method for controlling a mobile station, including the steps of: monitoring whether a base station disconnects a call during a call between two terminals; Generating a UE context release request message including a first call break separator or a second call break separator according to a determination result and transmitting the UE context release request message to the mobility management node; Generating a bearer delete command message including the first call break delimiter or the second call break delimiter and transmitting the bearer delete command message to the user plane node; Generating a call blocking request message including a call break separator and transmitting the call blocking request message to the billing node; And a step of selectively applying the first break cut identifier or the second break break identifier to the call charge of the terminal as deduction information.

In the present invention, when the call termination of a called terminal occurs during a call, it is judged whether the call termination is a call termination due to a handover failure or a termination due to a battery hernion. And the reliability of the currency billing can be improved by selectively deducting the predetermined deduction required time from each other according to the cause of the call truncation.

In addition, the present invention can selectively prevent the disadvantages of the operators caused by the application of the deduction by the call truncation because the predetermined deduction time is selectively deducted from the currency bill according to the cause of the call truncation.

FIG. 1 is a network configuration diagram of a mobile communication service system suitable for applying the terminal state based billing separation method according to the present invention,
FIG. 2 is a block diagram of a terminal state based billing separation apparatus according to the present invention;
FIG. 3 is a flow chart for explaining a process of selectively applying the deduction of the currency bill according to the cause of the call break when the call break is generated according to the present invention.

First, the advantages and features of the present invention, and how to accomplish them, will be clarified with reference to the embodiments to be described in detail with reference to the accompanying drawings. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to intentions or customs of a user, an operator, and the like. Therefore, the definition should be based on the technical idea described throughout this specification.

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

FIG. 1 is a network configuration diagram of a mobile communication service system suitable for applying a method of separating billing based on terminal status according to the present invention.

1, a mobile communication service system includes a plurality of communication equipment (UE) 102, a base station (DU) 104 (eNodeB), a mobility management entity (MME) 106, A Serving Gateway (SGW) 108, a PDW Gateway (PGW) 110, a Policy & Charging Rule Function (PCRF) 112, and a Multimedia Session Control Session Control System) 114, and the like. Here, the eNodeB 104, the MME 106, the SGW 108, the PGW 110, and the PCRF 112 may be defined as an LTE mobile communication network, and the eNodeB 104, the MME 106, the SGW The PGW 110, and the PCRF 112 may be collectively referred to as network nodes. In addition, the network node may be partially or selectively incorporated or replaced with other components depending on the network environment of the mobile communication network system.

1, a communication terminal 102 provided with a mobile communication related service by a base station 104 receives a packet-based voice service, a packet-based video service, a packet-based data communication service, and the like from the base station 104 For example, an LTE subscriber terminal, a VoLTE subscriber terminal supporting HD voice, or the like. Between the communication terminal 102 and the base station 104, there is a relay (which may be defined as a cell or radio unit (RU)) including an antenna for mobile communication installed in a building or the like, More equipment can be installed.

Next, the base station 104 exemplarily shows only one base station (eNodeB) for the sake of convenience of explanation and understanding, but it is also possible to provide a communication service (for example, voice service, (Or a variety of multimedia services including a service, a supplementary information service, and the like) can be supervised (controlled) by the mobility management node 106, and dozens of recording stations can be controlled by one tracking area (TA) As shown in FIG.

The base station 104 may be defined as a base station, a base station device, or a base station device as a device supporting next generation technologies and services such as LTE (or VoLTE), and may be defined as a radio bearer control, a radio resource management function such as radio admission control, connection mobility control, and dynamic resource allocation to a communication terminal can be provided. Here, the base station 104 may be defined, for example, as a digital unit (DU).

The base station 104 may also perform operations such as IP header compression and encryption of user data streams, routing of user plane data to the signal processing node 108, scheduling and transmission of paging messages, ) Scheduling and transmission of information, and measurement and measurement reporting for mobility and scheduling.

Further, the base station 104 monitors whether call termination occurs from the terminal (calling terminal or called terminal) during the call between the calling terminal and the called terminal, analyzes the cause of call termination to be judged as call termination (For example, Handover Failure), which indicates call termination due to a handover failure, or second call disconnector information (e.g., UE (For example, a UE Context Release Request) including a request message (e.g., Lost) from the mobility management node 106 to the mobility management node 106. For this purpose, And may include the charge separation device of the present invention. Here, the battery hernia of the terminal may mean, for example, a forced hernia by a user or an optional hernia that the user does not intend.

FIG. 2 is a block diagram of a terminal state based billing separation apparatus according to the present invention. The first terminal state management unit 202, the second terminal state management unit 204, the message generation unit 206, and the message transmission unit 208 ), And the like.

Referring to FIG. 2, the first terminal state management unit 202 determines whether a handover failure (for example, a target DU (digital unit) does not receive the terminal) from the two terminals (originating terminal and receiving terminal) (First cut) event is generated by the handover failure detection unit 206. When it is determined that a call disconnect event due to the handover failure is generated, it is sent to the message generation unit 206 And can provide a function of notifying the user.

Here, it may take a time of about 2-4 seconds to detect and detect the call disconnection due to the handover. If the handover completion signal is not received within the preset time, the first terminal state management unit 202 And notifies the message generation unit 206 that the first cutoff event has occurred.

Next, the second terminal state management unit 204 judges whether a call disconnect (second call disconnect) event by battery herniation (for example, forced or unplugged) from two terminals (calling terminal and receiving terminal) And notifies the message generating unit 206 of the occurrence of a call disconnect event caused by the battery herniation.

Here, it may take a time of 10 seconds, 15 seconds, 20 seconds, for example, to judge and detect a call truncation due to battery hernation. If the base station can not detect the terminal within a preset time, 204 informs the message generating unit 206 that the second call breaking event has occurred.

In addition, the message generating unit 206 generates a UE Context Release Request message including Handover Failure indicating a call release due to a handover failure, for example, Or second call severing information (UE_Lost) indicating a call disconnect due to a battery hernage), and the like.

Then, the message transmitting unit 208 transmits the generated call accounting information to the billing node so as to selectively apply the call accounting of the terminal (calling terminal) by the time required for detecting the first call break or the second call break, And to transmit the release request message to the mobility management node 106 of the mobile communication network.

Referring again to FIG. 1, the mobility management node 106 may refer to a node that manages the mobility of a communication terminal (terminal device) through a signal control charge between the base station 104 and the signal processing node 108 And can handle session management, idle subscriber management, paging, and subscriber authentication functions. That is, the mobility management node 106 may be configured to process a control signal when there is a binding request from the terminal or another network node, for example, from the signal processing node 108 or the packet processing node 110, And can receive the subscriber profile information, authentication and location related data from an HSS (home subscriber server) not shown in the figure, and sets up the EPS bearer or IP tunnel And mobility management can be provided.

Herein, the HSS includes a database including subscriber information of a wireless communication system for a legacy network (e.g., a WCDMA mobile communication system) and / or an LTE (or VoLTE) mobile communication system Means a network node, and may store subscriber profile information, authentication and location-related data, and the like.

In addition, when a call disconnection event occurs and a UE Context Release Request message including the first call delimiter information or the second call delimiter information is received from the base station 104 according to the present invention, A Delete Bearer Command (w / o or w) message containing a message for applying a deduction to the bearer, for example, a call cut cause information (first cut delimiter information or second cut delimiter information) / Private Ext) to the signal processing node 108, and so on.

Next, the signal processing node 108 processes the payload traffic according to a predetermined session based on the communication policy in the network provided from the policy management node 112 via the packet processing node 110 A user plane node which performs session control with the base station 104 and interworks with the base station 104 through an S1-U interface, supports handoff in an LTE mobile communication system and 3GPP, The mobility management node 106 may perform functions such as setting up a packet processing node 110 and an evolved packet system bearer (EPS bearer) and delivering a PDU (Packet Data Unit) using tunneling. (Delete Bearer Command (w / o or w / Private Ext)) including a call cut-off cause information (first cut delimiter information or second cut delimiter information) It may provide features, such as passing the load (110).

The packet processing node 110 allocates the IP of the terminal device according to the communication and charging policy provided from the policy management node 112 and allocates the IP address of the user plane node < RTI ID = 0.0 > Which can maintain the routing information with the signaling node 108 and the external network for packet service, provide tunneling and IP routing functions, deliver PDUs to the signal processing node 108 and the external network, And forwarding the policy priority information provided from the signal processing node 112 to the signal processing node 108. Here, the policy management node 112 manages and performs communication policies and billing policies in the communication network through provision of dynamic QoS and billing rules according to the service data flow. And the like.

In addition, the packet processing node 110 receives a bearer delete command (w / o) including a call cut cause information (the first cut delimiter information or the second call cut delimiter information) from the signal processing node 108 (RULE_STATUS Failure Code 10 or 15) message including a corresponding call cut-off cause code (for example, code 10 or code 15) is received, To the node 112, and to release (delete) the bearer assigned to the corresponding terminal.

The policy management node 112 then provides dynamic QoS and billing rules according to the service data flow to process and enforce communication policies and billing policies in the mobile communication system (RULE_STATUS Failure Code 10 or 15) message including a call cut-off cause code is received from the packet processing node 110 according to the present invention, (E.g., Abort Session Request (Cause: 0 or 1)) including the disconnection cause information to the multimedia session control node 114, and the like. Here, the policy management node 112 may be defined (collectively) as a billing policy node.

The multimedia session control node 114 can provide functions such as storing and managing session information related to a mobile instant messaging service, multimedia session management for an instant messaging service, charging management of a terminal, When a call blocking request message including call break cause information is received from the policy management node 112 according to the present invention, a corresponding call release message (for example, Session Initiation Protocol (SIP) Bye) , Thereby releasing the call connection to the two terminals.

In addition, the multimedia session control node 114 analyzes the cause of the call disconnection from the call blocking request message and applies the analysis result to the billing of the corresponding terminal, for example, cutting the first call from the call blocking request message (E.g., 2 to 4 seconds) is subtracted from the charge of the corresponding terminal when the call cut-off cause code indicating the call cut-off request message is extracted, (E.g., 10 seconds, 15 seconds, 20 seconds, etc.) at the time of extracting a call cut-off cause code, which means call cut due to battery herniation, Can be provided. To this end, the multimedia session control node 114 sets a first reference elapsed time corresponding to the first arc breaking and a second reference elapsed time corresponding to the second arc breaking, respectively.

Here, the multimedia session control node 114 may be defined (collectively) as a billing node, which is not necessarily limited to a multimedia session control node (MSS), and may be a caller indication service, (TAS: Telephony Application Server) or subscriber registration, authentication, billing, service triggering and routing, caller location inquiry, call processing, SIP based A call session control function (CSCF) that performs basic functions for multimedia session control and the like may be applied as a billing node.

Next, a series of processes for selectively applying the deduction of the call charge according to the cause of call break according to the present invention using the mobile communication service system having the above-described configuration will be described in detail.

FIG. 3 is a flowchart illustrating a process of selectively applying the deduction of the currency bill according to the cause of the call break when the call break is generated according to the present invention.

Referring to FIG. 3, the first terminal status management unit 202 in the base station 104 determines whether call termination (first call termination) due to a handover failure event occurs from two terminals (calling terminal and called terminal) And the second terminal status management unit 204 monitors whether or not a call termination (second call termination) event due to the battery outage occurs from the two terminals (calling terminal and called terminal) in the call.

If it is determined that the first call break or the second call break has occurred (step 302), the message generating unit 206 generates a release request message including the call break cause information A UE Context Release Request message including a first call disconnector information (Handover Failure) indicating a call disconnect resulting from the UE disconnect or a second call disconnector information (UE Lost ), And the message sending unit 208 transmits the release request message to the mobility management node 106 (step 304).

In response to this, in the mobility management node 106, when a UE Context Release Request message including the first call break delimiter information or the second call break delimiter information is received from the base station 104, A Delete Bearer Command (w / o or w / Private Ext) containing a message for application, for example, call cut cause information (first cut delimiter information or second cut delimiter information) The signal processing node 108 transmits to the signal processing node 108 the signal processing node 108 a bearer delete command message including the call cut cause information (the first cut delimiter information or the second call cut delimiter information) Command (w / o or w / Private Ext)) to the packet processing node 110 (step 308).

Next, the packet processing node 110 transmits a bearer delete command message (w / o or w / Private Ext) including the call cut cause information (the first cut delimiter information or the second call cut delimiter information) (E.g., a RULE_STATUS Failure Code 10 or 15) message including the corresponding call disconnection reason code (e.g., code 10 or code 15) to the policy management node 112, (Step 310), and releases (deletes) the bearer allocated to the corresponding terminal (step 312).

Then, when the CCR-U (RULE_STATUS Failure Code 10 or 15) message including the call disassociation cause code is received from the packet processing node 110, the policy management node 112 transmits the call disassociation cause information (E.g., Abort Session Request (Cause: 0 or 1)) to the multimedia session control node 114 (step 314).

In response, the multimedia session control node 114 generates a call release message (e.g., SIP (Session Initiation Protocol) Bye) corresponding to the call blocking request message and transmits the call release message to the network node side, (Step 316).

In addition, the multimedia session control node 114 may apply the analysis result of the cause of call truncation to the charge of the corresponding terminal, for example, a call that indicates the first truncation (call truncation due to handover failure) When the cut-off cause code (first cut-off delimiter information) is extracted, it is necessary to subtract a predetermined first reference elapsed time (for example, 2-4 seconds) from the billing of the terminal, (For example, 10 seconds, 15 seconds, 20 seconds, etc.) when a call cut-off cause code (No. 2 cut-off breaker information), which means a call cut due to battery herniation, And applies the deduction to the charging of the terminal (step 318).

That is, when the multimedia session control node 114 receives the release request message including the call break delimiter information from the network, it is determined through the analysis of the call break delimiter information that the call break is the first call break due to the handover failure, And selectively deducts the time required for detecting the first cut or the second cut according to the determination result to the calling charge of the calling terminal.

In other words, the present invention deducts the predetermined reference time corresponding to the time actually spent in judging and detecting call truncation according to the cause of the call truncation, from the call charge of the corresponding terminal.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. It is easy to see that this is possible. That is, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention.

Therefore, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

According to the embodiment of the present invention, when a call interruption occurs, it is checked whether the cause of the call interruption is a handover failure or a battery hernion, and then a time corresponding to the time actually spent in judging and detecting the call interruption And subtracts the established standard time required from the call charge of the corresponding terminal. Therefore, the present invention not only improves the reliability of the currency billing but also provides a billing separation service that effectively prevents the disadvantages of the carriers that may be caused due to the deduction application of the call truncation.

The present invention including this technical configuration can be applied to VoLTE (or LTE) mobile communication network, thereby realizing the reliability enhancement of VoLTE or LTE service and the reliability enhancement of billing application service.

102: communication terminal 104: base station
106: mobility management node 108: signal processing node
110: Packet processing 112: Policy management node
114: multimedia session control node 202: first terminal state manager
204: second terminal state management unit 206:
208:

Claims (6)

Monitoring whether or not a first call disconnected due to a handover failure or a second call disconnect due to a battery hernion from a terminal in a call is monitored;
Generating a release request message including a first arc breaking delimiter or a second arc breaking delimiter when the first arc breaking or the second arc breaking occurs;
For selective deduction application to currency billing, the process of transmitting the generated release request message to the billing node side
Based on the terminal status. A first terminal state management unit for monitoring whether or not a first call disconnection occurs due to a handover failure from a terminal in a call;
A second terminal state management unit for monitoring whether or not a second call disconnection due to battery herniation occurs from the terminal,
A message generator for generating a release request message including a first arc breaking delimiter or a second arc breaking delimiter when the first arc breaking or the second arc breaking occurs;
In order to selectively apply the deduction to the currency billing, a message transmission unit, which transmits the generated release request message to the billing node side,
And a terminal status-based billing separation apparatus comprising: Receiving a release request message including call break delimiter information from the network;
Determining whether call termination is a first call termination due to a handover failure or a second call termination due to a battery herniation through analysis of call termination delimiter information;
A step of selectively deducting the time required for detecting the first call disconnect or the second call disconnect according to a result of the determination to the call charge of the calling terminal
Based on the terminal status. The method of claim 3,
The above-
A first reference elapsed time preset for the first arc cut and a second reference elapsed time previously set for the second arc cut,
Terminal state based billing separation method. The method of claim 3,
The deduction application to the above-
Is performed through any one of the multimedia session control node (MSS), the application service node (TAS), and the call session control node (CSCF) in the IMS network
Terminal state based billing separation method. The method comprising the steps of: monitoring whether a base station disconnects a call during a call between two terminals;
Determining whether the call interruption is a first call interruption due to a handover failure or a second call interruption due to a battery hernal call when a call interruption occurs;
Generating a UE context release request message including a first call break delimiter or a second call break delimiter according to a determination result and transmitting the UE context release request message to a mobility management node;
Generating a bearer delete command message including the first call break delimiter or the second call break delimiter and transmitting the bearer delete command message to the user plane node;
Generating a call blocking request message including the first call break delimiter or the second call break delimiter and transmitting the call blocking request message to the billing node;
And the billing node selectively applies the first call breaking delimiter or the second call breaking delimiter to the call charge of the terminal as the deduction information
Based on the terminal status.

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