KR20110078308A - Ip multimedia service call control system and method - Google Patents

Ip multimedia service call control system and method Download PDF

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KR20110078308A
KR20110078308A KR1020090135085A KR20090135085A KR20110078308A KR 20110078308 A KR20110078308 A KR 20110078308A KR 1020090135085 A KR1020090135085 A KR 1020090135085A KR 20090135085 A KR20090135085 A KR 20090135085A KR 20110078308 A KR20110078308 A KR 20110078308A
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multimedia service
call
call requesting
multimedia
message
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KR1020090135085A
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Korean (ko)
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백운송
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엘지에릭슨 주식회사
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

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Abstract

PURPOSE: An IP(Internet Protocol) multimedia service call control system and method thereof are provided to control an IMS(IP Multimedia Subsystem) service call at an EPC( Evolved Packet Core) network. CONSTITUTION: A transmission engine(212) receives a subscriber traffic from a user apparatus. The transmission engine distinguishes a multimedia service that is requested by a requesting call among the subscriber traffic. The transmission engine detects a message that is related to the call that requests the multimedia service. A multimedia service control unit(240) decides a specific control method that requests the multimedia service based on the message. The multimedia service control unit controls the call that requests the multimedia service according to the specific control method.

Description

IP multimedia service call control system and method {IP MULTIMEDIA SERVICE CALL CONTROL SYSTEM AND METHOD}

The present invention relates to an IP Multimedia Subsystem (IMS) service call control system and method in an Evolved Packet Core (EPC) network.

In a conventional IP Multimedia Subsystem (IMS) service call control method in an Evolved Packet Core (EPC) network, control of a multimedia service is directly performed between a user equipment (UE) and an IP Multimedia Subsystem (IMS) node. lost. Specifically, after the UE establishes an IP Capable Network bearer, a call setup is performed between IMS nodes using the configured IP-CAN bearer. IMS nodes control the multimedia service by negotiating whether to open a requested multimedia service call and necessary resources. When the call setup process and the multimedia service control process of the UE and the IMS nodes are completed normally, the multimedia service is executed.

In the IMS service call control method in such an EPC network, all voice call services are performed through the packet switched network, so control messages such as call setup and release are recognized as IP packets, and thus, packet data network (PDN). Or to a UE via a PDN. Therefore, in the EPC network, multimedia services such as voice calls provided in the core network cannot be controlled with respect to the multimedia services provided in the core network.

However, in the conventional Universal Mobile Telecommunication System (UMTS) network, since the control of the voice call service is performed through the core network, the progress of the multimedia service call cannot be known in the EPC network. Accordingly, there is a problem in that it is impossible to control multimedia services in a UMTS network and it is difficult for a mobile operator to establish a charging policy for network use. In addition, in the EPC network, call control for VoIP service and message service through the general Internet network, not the IMS network, is impossible, so the mobile subscriber does not use the VoIP service provided by the mobile service provider and pays only the packet service fee. There is a problem that it is not possible to control the use of low-cost or free VoIP service and message service.

According to an embodiment, an apparatus for controlling a multimedia service call from a user equipment (UE) to an IP Multimedia Subsystem (IMS) node may receive a subscriber traffic from a user equipment and request a multimedia service among the subscriber traffic. A delivery engine for identifying a call and detecting a message associated with the call requesting the multimedia service, and determining a specific control scheme for the call requesting the multimedia service based on the message, and determining the multimedia according to the specific control scheme. It may include a multimedia service control unit for controlling a call requesting a service.

According to yet another embodiment, a method of controlling a multimedia service call from a user equipment (UE) to an IP multimedia subsystem (IMS) node includes: receiving subscriber traffic from the user equipment; Identifying a call requesting a multimedia service in the subscriber traffic and detecting a message related to the call requesting the multimedia service; Determining a specific control scheme for a call requesting the multimedia service based on the message; And controlling the call requesting the multimedia service according to the specific control scheme.

Each configuration and the relationship between the configurations shown in the drawings or described below may be modified into various configurations as an example. Therefore, it should be understood that each embodiment described in detail with reference to the drawings is not intended to limit the scope of the claims, but merely to describe representative embodiments of the various forms possible. Hereinafter, a detailed description will be made by using the accompanying drawings and the reference numbers indicated therein for clarity of understanding, and the parts denoted by the same reference numerals in the drawings represent the same configuration.

1 illustrates one embodiment of an IMS service call processing system 100 in an EPC network.

In one embodiment, the IMS service call processing system 100 provides a user equipment (UE) 102, an E-UTRAN that provides a wireless communication function to a user device and manages radio resources to enable a wireless connection. (Evolved Universal Terrestrial Radio Access Network) 104, a mobility management entity (MME) 106 that manages mobility of a user device and controls opening / deleting of a bearer, subscription information, location information, and authentication information for a subscriber. It may include a home subscriber server (HSS) 108 to manage.

In one embodiment, the UE 102 may include any device capable of providing multimedia services. For example, the UE 102 may correspond to one or more of a mobile phone, a mobile phone, a DMB phone, a game phone, a camera phone, a smartphone, a notebook computer, a desktop computer, a personal digital assistant (PDA), a white household appliance. In one embodiment, the E-UTRAN 104 may include an eNodeB (not shown) that is responsible for the connection of the UE 102 over the wireless interval.

In one embodiment, the MME 106 may be connected with the HSS 108 to perform mobility and session management of the UE 102. In one embodiment, the MME 106 may perform bearer control and management functions for user data transmission. In one embodiment, the MME 106 may perform a control message transmission and reception function with the eNodeB of the E-UTRAN 104.

In one embodiment, the IMS service call processing system 100 may include one or more IMS nodes 110 that receive multimedia services from a user device 102, PDN (Packet Data) that provides computer communication services to the IMS node 110. Network < RTI ID = 0.0 > 112, < / RTI > Packet Data Network < RTI ID = 0.0 > (112) < / RTI > To the Serving Gateway (S-GW) and the Packet Data Network (PDN) 112 serving as a gateway to the RDS (Redirect Server) 116 and the E-UTRAN 104 which transmits a guide message on how to use the service. The packet data network gateway (P-GW) serving as a gateway may further include an S-GW / P-GW 118.

In one embodiment, IMS node 110 is in one embodiment, IMS node 110 is a Proxy Call Session Control Function (P-CSCF), an Interrogating Call Session Control Function (I-CSCF), a Serving Call (S-CSCF). Session Control Function) or AF (Application Function). In one embodiment, IMS node 110 may be provided with multimedia services such as Voice over IP (VoIP) and video calls from UE 102.

In one embodiment, the PCRF 114 may provide information that allows the P-GW / S-GW 118 to provide the appropriate QoS to the UE 102 and to perform the charging function for the bearer used. .

In one embodiment, IMS service call processing system 100 may, in one embodiment, perform S-GW / P-GW 118 functions only as one of S-GW and P-GW. In this case, the S-GW / P-GW 118 may be combined with an S-GW or P-GW, which is a node that performs other functions not performed by the S-GW / P-GW. In one embodiment, when the S-GW / P-GW 118 functions as an S-GW and operates as a first hop router for the UE 102, the S-GW / P-GW 118 may be It can be matched using another P-GW and PMIP (Proxy Mobile IP). In one embodiment, when the S-GW / P-GW 118 functions as a P-GW and operates as a first hop router for the UE 102, the S-GW / P-GW 118 may be It can be matched using other S-GW and GPRS Tunneling Protocol (GTP).

2 is a block diagram schematically illustrating a configuration of the S-GW / P-GW 118 according to an embodiment.

In one embodiment, the S-GW / P-GW 118 receives an input message from the E-UTRAN 104 and the MME 106, and outputs data to the PDN 112, IO processing unit 210 and IO processing unit The bearer manager 220 and the operation manager 230 may be configured to receive a message from the 210 and establish a bearer for the UE 102 to respond to the UE 102. In one embodiment, the IO processing unit 210 and the bearer management unit 220 of the S-GW / P-GW 118 set up an IP-CAN bearer for initiating a multimedia service between the UE 102 and the IMS node 110. The procedure can be executed. For example, if a bearer establishment request from the UE 102 is passed to the S-GW / P-GW 118 through the E-UTRAN 104 and the MME 106, the IO processing unit 210 sends the request. After receiving and forwarding to the bearer management unit 220, the bearer management unit 220 may establish a bearer for the UE 102 in response to the received request, and establish an IP-CAN bearer by responding to the UE 102. .

In one embodiment, the IO processor 210 may include a delivery engine 212 that performs a function of delivering a control message. In one embodiment, the delivery engine 212 may execute a multimedia service identification procedure for determining whether there is a multimedia service call related message among subscriber traffic delivered to the IO processing unit 210 after the IP-CAN bearer is established. . In this case, the delivery engine 212 may execute a multimedia service identification procedure by using a deep packet inspection (DPI) function.

In one embodiment, the delivery engine 212 may include a separate multimedia service identification unit 214 for executing the multimedia service identification procedure. In one embodiment, the multimedia service identification unit 214 determines whether there is a multimedia service call related message among subscriber traffic transmitted through the IO processing unit 210, and if a multimedia service call related message exists, The multimedia service call related message may be delivered to the multimedia service controller 240 to be described.

In one embodiment, the multimedia service identification unit 214 monitors SIP / SDP for subscriber traffic delivered using protocol messages such as Session Initiation Protocol (SIP) / Session Description Protocol (SDP) to control multimedia service related calls. The message can be identified. For example, the multimedia service identification unit 214 may detect a multimedia service call related message by monitoring a server URL (Unified Resource Location) name included in a SIP / SDP message.

In another embodiment, the multimedia service identification unit 214 may perform monitoring only on a message transmitted and received with an access point name (APN) indicating a specific PDN 112 to identify a multimedia service call related message. In this case, the multimedia service identification unit 214 may receive all messages transmitted and received with a specific access point name (APN). In one embodiment, the multimedia service identification unit 214 may determine whether to perform the monitoring according to the bearer attribute of the APN. For example, the multimedia service identification unit 214 is established when the UE is activated to provide Always On service and is additionally established to provide a default bearer used for signaling and a specific service. Only the default bearer can be monitored among the dedicated bearers.

In another embodiment, the multimedia service identification unit 214 may execute the monitoring only for a specific subscriber to identify the multimedia service call related message. For example, the multimedia service identification unit 214 retrieves a profile for a subscriber from the HSS 108 at the time of initial default bearer setup, and executes monitoring only for a specific specific subscriber to identify multimedia service call related messages. Can be.

However, it should be understood that the multimedia service identification procedure executed herein is not limited thereto, and other ways of identifying the multimedia service, such as packet filtering, may also be used.

In one embodiment, the S-GW / P-GW 118 is a multimedia service for performing a control process such as blocking, allowing, requesting resource control, etc. for the multimedia service call-related message identified by the multimedia service identification unit 214. The controller 240 may further include a control information database 250 in which control related information is stored, and a multimedia service control information manager 260 for determining a control scheme to be executed by the multimedia service controller 240.

In an embodiment, the multimedia service controller 240 may control the multimedia service based on a control method determined by the multimedia service control information manager 260 as described in detail below. In one embodiment, if the multimedia service control unit 240 determines that the multimedia service should be blocked, the multimedia service call-related message may be blocked without being transmitted to the PDN 112 and may be reported to the operator. In one embodiment, the multimedia service controller 240 simply discards the multimedia service call related message to block the multimedia service call related message, or forwards the multimedia service call related message to the RDS 116 so that the RDS 116 alerts the user device to a warning message. And / or provide guidance on how to use the service.

In one embodiment, the multimedia service controller 240 transmits all the received multimedia service call-related messages to the PDN 112, and applies a charging policy different from that of the basic data service to the paid bearer for the multimedia service. Can be. In one embodiment, if the requested multimedia service is a VoIP service provided by the network operator, the charging policy received from the PCRF 114 may be applied to the service. In one embodiment, if the requested multimedia service is a service not provided by the network operator such as Skype, a charging policy statically configured in the S-GW / P-GW 118 may be applied to the service. Can be applied.

In one embodiment, the multimedia service controller 240 may provide a trace service of a call progress regarding a multimedia service. In one embodiment, the multimedia service control unit 240 may collect data necessary for network operation management in order to improve the quality of the multimedia service. For example, the multimedia service controller 240 may collect related data to analyze the cause of failure when the multimedia service provision for the licensed subscriber fails. In one embodiment, the multimedia service control unit 240 may store the collected data in the control information database 250.

However, it should be understood that the multimedia service identification procedure executed herein is not limited thereto and may be variously applied. For example, a control scheme in which the information about the amount and quality of resources required in accordance with the state of the network to be executed may be changed in the middle.

In one embodiment, the control information database 250 may include content identification information for identifying specific content. In one embodiment, the content identification information may be a packet identification information for identifying a specific packet, such as a source IP, a destination IP, a protocol IP, a source port number, and a destination port number, and a URL, a unique procedure defined by a specific string or a protocol, and the like. Content identification information for identifying specific content may be included. For example, if you want to block the skype service, the procedure defined in the skype protocol may be stored as the content identification information.

In one embodiment, the control information database 250 may store information about control content to be performed on the identified packet or flow. In one embodiment, the information about the control content may include one or more of drop, redirect, operator reporting, statistics collection and billing rate change.

In one embodiment, the multimedia service control information management unit 260 may determine the control scheme of the multimedia service control unit 240 described above. In one embodiment, the multimedia service control information management unit 260 may include control information stored in the control information database 250 and control information input from an operator, pre-configured information in the system, and an MME (when opening a default bearer). 106) or the control method may be determined based on at least one of the control information obtained from the PCRF 114. In one embodiment, the multimedia service control information management unit 260 may determine the control method by using the control information obtained from the MME 106 or the PCRF 114 when the default bearer is opened. In one embodiment, the multimedia service control information management unit 260 is input from the operator and the control information stored in the control information database 250 if there is no control information obtained from the MME 106 or PCRF 114 when the default bearer is opened. The control method may be determined based on the control information and the preconfigured information in the system.

In one embodiment, when the multimedia service control information management unit 260 determines the control method according to the pre-configured information, the multimedia service control information management unit 260 performs control for each APN or bearer or provides control only to a specific subscriber. The control method can be determined.

In one embodiment, the multimedia service control information management unit 260 may determine a control scheme based on the relevant information obtained from the MME 106 or the PCRF 114 when the default bearer is opened. In one embodiment, the multimedia service control information management unit 260 may determine a control scheme by obtaining subscription information stored in the HSS 108 through the MME 106 or the PCRF 114 when the default bearer is opened. In one embodiment, when the multimedia service control information management unit 260 determines the control scheme by obtaining subscription information stored in the HSS 108 through the MME 106 or the PCRF 114, the subscriber-specific control policy or time zone You can execute the control policy. In the subscriber-specific control policy, the billing policy may be differentially applied to a customer who uses a specific device or a specific service, such as a subscriber who uses a smartphone or a roaming service subscriber, or a subscriber who has a poor credit rating. In the time-phase control policy, for example, in a time zone with a high call volume, the quality of service and the charge policy may be differentiated from time to time by limiting the types of services provided or increasing rates.

In the above description, the content identification information and the information about the control content are described as being stored in the control information database 250. However, the present invention is not limited thereto. It should be noted that it may be stored in 108). In this case, the HSS 108 may transmit the content identification information and the information about the control content to the S-GW / P-GW 118 through the MME 106 or the PCRF 114. In one embodiment, the HSS 108 may manage the above-described content identification information and control information for each subscriber.

Hereinafter, an IMS service call processing method in an EPC network using the IMS service call processing system 100 shown in FIGS. 1 and 2 will be described with reference to FIG. 3.

In step S302, an IP-CAN bearer setup procedure is performed, and an IP-CAN bearer is provided by the E-UTRAN 104, the MME 106, and the S-GW / P-GW 118. In one embodiment, the IP-CAN bearer setup procedure may open a bearer for the UE 102 in response to the multimedia service request received by the bearer manager 220 of the S-GW / P-GW 118 to transmit the UE 102. Responding) may be included.

In step S304, subscriber traffic is delivered to the S-GW / P-GW 118 through the established bearer, and an identification procedure for determining whether a multimedia service call related message exists in the forwarded subscriber traffic is executed. In one embodiment, the identification procedure may be executed by the delivery engine 212 or the multimedia service identification unit 214 of the S-GW / P-GW 118 in the manner described above with reference to FIG. 1.

In step S306, when the multimedia service call related message is identified, a control procedure by the multimedia service control unit 240 is performed. In an embodiment, step S206 may include a step in which the multimedia service control information management unit 260 determines a control scheme and the multimedia service control unit 240 performs a control procedure according to the determined control method.

In one embodiment, step S306 may include a message blocking control procedure 400 related to a multimedia service call, as shown in FIG. 4. In the multimedia service call related message blocking control procedure 400, as shown in FIG. 4, the step of receiving a multimedia service call related message (S402), and determining whether the received multimedia service call related message should be blocked (S404). ), If it is determined that the message related to the multimedia service call is blocked (S406), reporting to the operator that the message related to the multimedia service call is blocked (S408), and not blocking the message related to the multimedia service call. If it is determined that, as shown in step 310 of FIG. 3, it may include a step (S410) of delivering a multimedia service call-related message to the PDN 112 so that the multimedia service can be executed between the UE 102 and the IMS node 110. have.

In one embodiment, step S406 may include simply discarding the message without forwarding it to the PDN 112. In another embodiment, step S406 further includes forwarding the corresponding multimedia service call related message to the RDS 116 such that the RDS 116 provides a warning message and / or procedure guidance for using the service. can do.

In another embodiment, step S306 may be a process (hereinafter, 'multimedia service call related message delivery procedure') 500 for delivering all the multimedia service call related messages received by the multimedia service control unit 240 to the PDN 112. It may include. In an embodiment, the multimedia service call related message delivery procedure 500 may determine whether the corresponding multimedia service call related message is transmitted through the multimedia bearer for multimedia service as illustrated in FIG. 5 (S502). And determining and applying a charging policy according to the determination result in step S502 (S504). In an embodiment, in step S504, a charging policy different from the basic data service may be applied with respect to the corresponding multimedia service call-related message transmitted through the multimedia bearer for multimedia service. For example, determining whether the requested multimedia service is a VoIP service provided by the network operator. If the requested multimedia service is a VoIP service provided by the network operator, the charging policy is received from the PCRF 114 and applied to the corresponding service. And if the requested multimedia service is a VoIP service not provided by the network operator, applying a charging policy statically configured to the S-GW / P-GW 118 to the corresponding service. . In an embodiment, the multimedia service call related message delivery procedure 500 may further include a step S506 of providing a trace service of call progress regarding the multimedia service.

In an embodiment, step S306 may include obtaining, by the multimedia service control unit 240, control information necessary for executing control. In an embodiment, the obtaining of the control information may include transmitting, by the multimedia service control information management unit 260, the control information obtained from the control information database 250 to the multimedia service control unit 240. In another embodiment, the step of obtaining control information includes the step of the HSS 108 transferring control information to the MME 106 or the PCRF 114 and the control information received from the MME 106 or the PCRF 114. May be delivered to the S-GW / P-GW 118.

In an embodiment, step S306 may further include collecting data necessary for network operation management and storing the collected data in the control information database 250 in order to improve the quality of the multimedia service.

In an embodiment, step S306 may further include collecting related data to analyze the cause of failure when the multimedia service provision for the licensed subscriber fails.

The above embodiments have been described with reference to the embodiments shown in the drawings to aid in understanding of the present disclosure, but these are merely exemplary, and various modifications and equivalent forms of those having ordinary skill in the art may be used. It will be appreciated that embodiments are also possible.

1 illustrates an embodiment of an IMS service call processing system in an EPC network.

2 illustrates an S-GW / P-GW according to one embodiment of the present application.

3 is a flowchart illustrating each step of an IMS service call processing method according to an embodiment of the present application.

4 illustrates an embodiment of a message blocking control procedure related to a multimedia service call executed in an IMS service call processing method.

5 illustrates an embodiment of a message transfer procedure related to a multimedia service call executed in an IMS service call processing method.

Claims (17)

An apparatus for controlling a multimedia service call from a user equipment (UE) to an IP Multimedia Subsystem (IMS) node, A delivery engine that receives subscriber traffic from a user device, identifies a call requesting a multimedia service among the subscriber traffic, and detects a message related to the call requesting the multimedia service; The multimedia service control unit determines a specific control method for the call requesting the multimedia service based on the message, and controls the call requesting the multimedia service according to the specific control method. Apparatus for controlling a multimedia service call comprising a. The method of claim 1, And the delivery engine analyzes the subscriber traffic using a deep packet inspection (DPI) function to identify a call requesting the multimedia service. The method of claim 1, The subscriber traffic includes messages, The delivery engine, Monitoring a SIP / SDP message included in each of the messages of the subscriber traffic to identify a call requesting the multimedia service; A method of identifying the multimedia service call by monitoring a message to be transmitted to an access point location (APN) indicating a specific packet data network (PDN) among the messages of the subscriber traffic; And A method of identifying a multimedia service call by acquiring a subscriber profile from a home subscriber server (HSS) and monitoring a message from a specific subscriber among the messages of the subscriber traffic. And executing at least one of the following. The method of claim 1, Further comprising a multimedia service control information management unit, The multimedia service control unit requests control information for controlling the call requesting the multimedia service to the multimedia service control information management unit. And the multimedia service control information management unit provides the requested control information to the multimedia service control unit in response to the request. The method of claim 1, And the multimedia service controller determines the specific control method based on at least one of control information dynamically received from a mobility management entity (MME) or a policy & charging rule function (PCRF). The method of claim 1, And the multimedia service control unit blocks the call for requesting the multimedia service according to the control. The method of claim 1, The multimedia service control unit transmits a call requesting the multimedia service to a redirect server (RDS), so that the RDS receives at least one of a warning message related to a call requesting the multimedia service and a guide message on a service using method. A device for controlling a multimedia service call to be sent to a user device. The method of claim 1, The multimedia service control unit transmits the call requesting the multimedia service to the PDN, and the charging policy different from the default bearer for the dedicated bearer for the multimedia service, the apparatus for controlling a multimedia service call. The method of claim 1, And the multimedia service control unit is operable to track the progress of a call requesting the multimedia service. A method of controlling a multimedia service call from a user equipment (UE) to an IP multimedia subsystem (IMS) node, Receiving subscriber traffic from the user device; Identifying a call requesting a multimedia service in the subscriber traffic and detecting a message related to the call requesting the multimedia service; Determining a specific control scheme for a call requesting the multimedia service based on the message; and Controlling a call requesting the multimedia service according to the specific control method; A method for controlling a multimedia service call comprising a. The method of claim 10, Identifying a call requesting a multimedia service in the subscriber traffic and detecting a message related to the call requesting the multimedia service, Receiving, by a delivery engine, the subscriber traffic; And And the delivery engine analyzing the subscriber traffic using a deep packet inspection (DPI) function and identifying a call requesting the multimedia service. The method of claim 10, Identifying a call requesting a multimedia service in the subscriber traffic and detecting a message related to the call requesting the multimedia service, Monitoring a SIP / SDP message included in each of the messages of the subscriber traffic to identify a call requesting the multimedia service; Identifying the multimedia service call by monitoring a message for delivery to an Access Point Location (APN) indicating a specific Packet Data Network (PDN) among the messages of the subscriber traffic; And Obtaining a subscriber profile from a home subscriber server (HSS) and monitoring the message from a particular subscriber of the messages of the subscriber traffic to identify the multimedia service call. The method according to any one of claims 10 to 12, Determining a specific control scheme for the call requesting the identified multimedia service, And determining the specific control method based on at least one of control information dynamically received from a mobility management entity (MME) or a policy & charging rule function (PCRF). The method of claim 10, The controlling of the call requesting the multimedia service according to the specific control method may include: Blocking the call for requesting the multimedia service according to the control. The method of claim 10, The controlling of the call requesting the multimedia service according to the specific control method may include: Transmitting a call requesting the multimedia service to a redirect server (RDS); And Providing the user device with at least one of a warning message relating to a call requesting the multimedia service and a guide message on a method of using a service, by the RDS. The method of claim 10, The controlling of the call requesting the multimedia service according to the specific control method may include: Forwarding the call requesting the multimedia service to a PDN; And Causing a charging policy different from a default bearer to be applied to the dedicated bearer for the multimedia service. The method of claim 10, The controlling of the call requesting the multimedia service according to the specific control method may include: Tracking the progress of the call requesting the multimedia service.
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KR20130015602A (en) * 2011-08-04 2013-02-14 에스케이텔레콤 주식회사 Method for providing selective call procedure in mobile communication service system, packet data network gateway and online charging system for selective call procedure
WO2014051392A1 (en) * 2012-09-27 2014-04-03 삼성전자 주식회사 Method and apparatus for processing packet
KR20140080514A (en) * 2011-10-03 2014-06-30 인텔 코오퍼레이션 Device to device(d2d) communication mechanisms

Cited By (5)

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Publication number Priority date Publication date Assignee Title
KR20130015602A (en) * 2011-08-04 2013-02-14 에스케이텔레콤 주식회사 Method for providing selective call procedure in mobile communication service system, packet data network gateway and online charging system for selective call procedure
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