JP2019198019A - Message delivery control device and message delivery control method - Google Patents

Abstract

To prevent double distribution to each communication terminal when using forking to distribute messages to a plurality of devices.SOLUTION: A message distribution control device 30 includes: a message transmitting unit 32 for transmitting to each of a plurality of communication terminals a message for a specific phone number on the basis of an instruction from a message management device 10; a non-distributed information management unit 33 for holding information identifying the message and information identifying a communication terminal which the message has failed to reach by associating to each other if the message is not distributed to some communication terminals; and a message retransmission unit for retransmitting the message only to communication terminals that have not received the message on the basis of the information held in the non-distributed information management unit when retransmitting a message to a specific phone number on the basis of an instruction from the message management device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a message delivery control device and a message delivery control method.

  In a SIP (Session Initiation Protocol) network such as an IMS (IP Multimedia Subsystem) network, one telephone number is transmitted between two communication terminals by using forking that transmits one request to a plurality of destinations. A technique to be used has been studied (for example, see Patent Document 1).

International Publication No. 2016/104622

  In the above technique, it is considered that a message such as a short message service (hereinafter referred to as “SMS”) is distributed to two communication terminals having the same telephone number using forking. . However, SMS is generally redistributed when distribution to a communication terminal is not performed properly, but re-distribution is similarly performed when message distribution fails at one of the two communication terminals. When the distribution is performed, it is considered that the communication terminal that has been normally received receives the same message repeatedly.

  The present invention has been made in view of the above, and a message delivery control apparatus capable of preventing double delivery to each communication terminal when delivering messages to a plurality of communication terminals using forking. It is another object of the present invention to provide a message delivery control method.

  In order to achieve the above object, a message delivery control device according to an aspect of the present invention provides message delivery for transmitting a message addressed to a specific telephone number to a plurality of communication terminals associated with the specific telephone number. A message transmitting unit for transmitting a message addressed to the specific telephone number to the plurality of communication terminals based on an instruction from a message management device that manages a message addressed to the communication terminal; When the message is not delivered to some communication terminals included in the plurality of communication terminals that have transmitted the message addressed to the telephone number, information specifying the message and the message have not been delivered A non-delivery information management unit that associates and stores information specifying a communication terminal, and the specific telephone number based on an instruction from the message management device A message resending unit that resends the message only to a communication terminal that has not delivered the message based on information held in the non-delivery information management unit when resending the addressed message .

  In addition, the message delivery control method according to an aspect of the present invention is a message delivery control device that sends a message addressed to a specific telephone number to a plurality of communication terminals associated with the specific telephone number. In the control method, the message transmission unit of the message delivery control device sends a message addressed to the specific telephone number to the plurality of communication terminals based on an instruction from a message management device that manages a message addressed to the communication terminal. A message transmission step of transmitting to the non-delivery information management unit of the message distribution control device, and the message is transmitted to some communication terminals included in the plurality of communication terminals that have transmitted the message addressed to the specific telephone number. If it is not delivered, the information that identifies the message and the message is not delivered A non-delivery information holding step that holds information specifying a communication terminal in association with each other, and a message retransmitting unit of the message delivery control device, in response to an instruction from the message management device, a message addressed to the specific telephone number A message retransmission step of resending the message only to a communication terminal that has not delivered the message based on information held in the non-delivery information management unit when resending.

  ADVANTAGE OF THE INVENTION According to this invention, when delivering a message with respect to several communication terminals using forking, the message delivery control apparatus and message delivery control method which can prevent double delivery with respect to each communication terminal are provided. Is done.

It is a block diagram explaining the message delivery system containing the message delivery control apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of the information hold | maintained at the nondelivery information management part of a message delivery control apparatus. It is a sequence diagram explaining the process which concerns on the message delivery in a message delivery system. It is a flowchart explaining the procedure of the process based on the delivery result of a message. It is a flowchart explaining the procedure which determines the resending destination of a message. It is a figure explaining the hardware constitutions of the delivery control apparatus of a message.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a diagram illustrating a configuration of a message distribution system 1 including a message distribution control device according to an embodiment of the present invention. As shown in FIG. 1, the message delivery system 1 includes an SMSC 10 (SMS Service Centre), an IP-SM-GW 20 (IP-Short-Message-Gateway), an S-CSCF 30 (Serving Call Session Control Function), UEs 40A, 40B ( User Equipment).

  The SMSC 10 is a device that stores SMS. Moreover, it has the function to instruct | indicate SMS delivery with respect to UE40A, 40B etc. with respect to IP-SM-GW20 of a back | latter stage. The SMSC 10 functions as a message management device in the message distribution system 1.

  The “message” described in the present embodiment is unilaterally transmitted from the server (device) storing messages provided on the core network side to the communication terminal, such as the short message service (SMS). A push-type message to be sent. In the present embodiment, a case where the “message” is “SMS” will be described. Further, “message transmission / reception” will be described as “SMS transmission / reception”.

  The IP-SM-GW 20 has a function of transferring the SMS received from the SMSC 10 to the subsequent S-CSCF 30. The IP-SM-GW 20 is an application server related to message transmission.

  The S-CSCF 30 is a logical node that is connected to communication terminals (UEs 40A and 40B) and performs call session control in IMS. The S-CSCF 30 is a logical node that processes a SIP message as a SIP (Session Initiation Protocol) server, and controls user registration and session setting. The S-CSCF 30 functions as a message delivery control device in the message delivery system 1. Details will be described later.

  The UEs 40A and 40B are communication terminals such as smartphones and tablets, for example, and are connected to an IMS (IP Multimedia Subsystem) core network configured to include each device of the message delivery system 1, and various types of wireless communication are used. You can receive service. In the present embodiment, a case where the UEs 40A and 40B receive the SMS in the message distribution system 1 will be described. Therefore, each of the UEs 40A and 40B has an SMS processing unit 41.

  The UEs 40A and 40B are terminals that use services that use the same telephone number in a plurality of communication terminals. In this case, for example, when there is an incoming call to the telephone number, a plurality of communications using the same telephone number (corresponding to the telephone number) using forking Call control is performed on the terminal. The same applies to the SMS, and the SMS corresponding to the telephone number uses the same telephone number (corresponding to the telephone number) using forking. Is delivered against. This embodiment demonstrates the case where SMS is delivered to two UE40A, 40B which is a some communication terminal using forking as mentioned above. Of the two communication terminals, the case where UE 40A is the main terminal and UE 40B is the sub terminal will be described.

  Next, functional blocks constituting the S-CSCF 30 that is a message delivery control device will be described. The S-CSCF 30 includes an SMS delivery instruction receiving unit 31, an SMS sending unit 32, a non-delivery information management unit 33, a terminal response receiving unit 34, and a delivery result sending unit 35.

  The SMS distribution instruction receiving unit 31 receives an SMS distribution instruction to the UE transmitted from the SMSC 10 via the IP-SM-GW 20. The SMS distribution instruction received by the SMS distribution instruction receiving unit 31 includes the SMS message body, information for identifying the SMS sender (telephone number), information on the telephone number of the UE for identifying the SMS distribution destination, and SMS time stamp (information specifying the date and time when the SMS was received by the SMSC 10). The SMS distribution instruction includes an SMS retransmission instruction. In the case of an SMS retransmission instruction, a difference occurs between the date and time indicated by the SMS time stamp and the date and time when the S-CSCF 30 actually receives the SMS.

  The SMS transmission unit 32 has a function as a message transmission unit that distributes the SMS to the UE based on the SMS distribution instruction received by the SMS distribution instruction reception unit 31. The SMS transmission unit 32 also determines whether it is necessary to distribute SMS to a plurality of UEs using forking, and distributes the SMS based on the result. Note that whether or not to use forking is determined based on information related to the telephone number of the UE that identifies the SMS delivery destination among the information included in the SMS delivery instruction. When the telephone number of the UE as the SMS delivery destination is a number corresponding to the UE 40A, that is, a number corresponding to the main terminal, the SMS transmission unit 32 determines to use forking.

  Note that the SMS transmission unit 32 has a function as a message retransmission unit that performs retransmission of SMS based on an instruction from the SMSC 10. The SMS transmission unit 32 refers to the information held in the later-described non-delivery information management unit 33 based on the SMS distribution instruction received by the SMS distribution instruction receiving unit 31. And when the information regarding the said SMS is hold | maintained by the non-delivery information management part 33, SMS is transmitted only to UE which was not reached at the time of transmission of the last SMS. Details of the procedure will be described later.

  The non-delivery information management unit 33, when the SMS transmission unit 32 transmits SMS to a plurality of communication terminals using forking, when some of the SMSs have not been delivered, It has a function to hold such information. FIG. 2 shows an example of information held by the non-delivery information management unit 33. As shown in FIG. 2, the non-delivery information management unit 33 includes an SMS time stamp, information (phone number) that identifies the sender of the SMS, and information that identifies the non-delivery communication terminal (UE) ( Main terminal or sub terminal). The SMS that has not been delivered can be specified by the time stamp of the SMS and the information specifying the sender. Therefore, the SMS transmitting unit 32 uses the time stamp and information for specifying the caller to specify the UE that has not reached the SMS and retransmits the SMS. The information held by the non-delivery information management unit 33 is updated based on a response signal from the UE received by the terminal response reception unit 34 described later. In addition, the information held in the non-delivery information management unit 33 may be configured to individually delete the information of each time stamp when the SMS retransmission control ends, or from the SMS time stamp for a certain period (the SMS A configuration may be adopted in which deletion is performed automatically after elapse of a sufficient time for retransmission or the like.

  The terminal response receiver 34 has a function of receiving a response signal from the UE that has transmitted the SMS. From the UE, a signal (OK signal) indicating that SMS has been properly received or a signal (NG signal) indicating failure in receiving SMS is sent. In addition, since the UE is out of service area, for example, SMS reception itself is not performed, and a response from the UE may not be transmitted. If the received response signal is an NG signal or the response signal from the UE cannot be received, the terminal response reception unit 34 updates the information held in the non-delivery information management unit 33. As described above, when the SMS is undelivered, that is, when the NG signal is received or when the response signal itself cannot be received, the information held in the non-delivery information management unit 33 is updated. On the other hand, in the case of an OK signal, since the SMS has been successfully received at the UE, the information held in the non-delivery information management unit 33 is not updated.

  The distribution result transmitting unit 35 has a function of transmitting a response signal to the IP-SM-GW 20 based on the response signal from the UE received by the terminal response receiving unit 34. The response signal transmitted to the IP-SM-GW 20 includes a time stamp for specifying the SMS and information indicating whether or not the SMS distribution is successful (OK / NG). Here, the success of SMS distribution refers to the case where SMS transmission to all terminals succeeds when SMS distribution is performed to a plurality of terminals. Therefore, when it does not reach some communication terminals, the SMS transmission has failed. The response signal is sent to the SMSC 10 via the IP-SM-GW 20. In the SMSC 10, based on the response signal, an SMS retransmission instruction is given to the S-CSCF 30 as necessary after a predetermined time has elapsed.

  Next, an SMS delivery method (message delivery control method in the S-CSCF 30) in the message delivery system 1 will be described with reference to FIGS. FIG. 3 is a sequence diagram relating to a series of processes. 4 and 5 are flowcharts for explaining a part of message delivery control in the S-CSCF 30. FIG. In the example illustrated in FIG. 3, a case will be described in which the distribution to the UE 40 </ b> A that is the main terminal is unsuccessful (non-delivery) and the distribution to the UE 40 </ b> B that is the sub-terminal is successful. .

  First, in the SMSC 10, the SMS from the originating UE is accumulated (S01). This SMS is transmitted to the S-CSCF 30 via the IP-SM-GW 20, and an SMS distribution instruction is issued (S02). When the SMS distribution instruction receiving unit 31 of the S-CSCF 30 receives the SMS distribution instruction, the SMS transmission unit 32 confirms the transmission destination. In the example shown in FIG. 3, since it is SMS delivery to the contractor of the target service, it determines to transmit to UE40A and UE40B using forking (S03). Thereafter, the SMS is transmitted to the UEs 40A and 40B that are distribution destinations (S04: message transmission step). The SMS processing unit 41 of the UEs 40A and 40B transmits the processing result for the transmitted SMS to the S-CSCF 30 as a response signal (S05). In the example illustrated in FIG. 3, an NG signal is transmitted from the UE 40A, and an OK signal is transmitted from the UE 40B.

  The terminal response reception unit 34 of the S-CSCF 30 receives the response signals from the UEs 40A and 40B, and holds the non-delivery information in the non-delivery information management unit 33 when the non-delivery information is included in the response signals. (S06: Non-delivery information holding step). In addition, a response signal to the SMS distribution instruction is transmitted from the distribution result transmission unit 35 to the SMSC 10 via the IP-SM-GW 20 (S07). As described above, even when the response signal cannot be received, the information of the non-delivery information management unit 33 is updated as in the case where the non-delivery signal is included in the response signal.

  A processing procedure in the S-CSCF 30 related to retention of non-delivery information (S06) and transmission of a response signal (S07) will be described with reference to FIG.

  First, when a response from the communication terminal to the SMS is received (here, response signals from both the UEs 40A and 40B are received) (S21), the terminal response receiving unit 34 confirms the result and returns to the main terminal. It is confirmed whether or not the SMS delivery has succeeded (whether the OK signal has been received) (S22). When the signal from the main terminal is an OK signal (S22-YES), it is confirmed whether the distribution to the sub terminal has been successful (has received the OK signal) (S23). When the signal from the sub terminal is an OK signal (S23-YES), the distribution result transmitting unit 35 transmits a response signal (OK signal) indicating that the SMS distribution has been successful to the SMSC 10 (S24).

  Next, when the signal from the main terminal is an OK signal (S22-YES) and the signal from the sub terminal is an NG signal (S23-NO), the distribution result transmission unit 35 performs SMS distribution to the SMSC 10. A response signal (NG signal) indicating failure has been transmitted, and information indicating that SMS delivery has not been delivered to the sub-terminal is held in the non-delivery information management unit 33 (S25).

  Next, also in the case where the signal from the main terminal is an NG signal (S22-NO), similarly, it is confirmed whether the distribution to the sub-terminal is successful (OK signal is received) (S25). When the signal from the sub-terminal is an OK signal (S25-YES), the distribution result transmission unit 35 transmits a response signal (NG signal) indicating that the SMS distribution has failed to the SMSC 10, and non-delivery information. The management unit 33 holds information indicating that the SMS delivery has not been delivered to the main terminal (S27). When the signal from the main terminal is an NG signal (S22-NO) and the signal from the sub-terminal is an NG signal (S25-NO), the distribution result transmission unit 35 fails in SMS distribution to the SMSC 10. A response signal (NG signal) indicating that it has been transmitted is transmitted (S28). In this case, since the SMS delivery has not been successful for either UE, the non-delivery information management unit 33 does not hold the non-delivery information. Therefore, when an SMS retransmission instruction is received, SMS is retransmitted to a plurality of communication terminals as usual.

  Returning to FIG. 3, processing related to SMS retransmission will be described. In the SMSC 10, when an NG signal is received as a response signal to the SMS delivery instruction from the S-CSCF 30, a retransmission instruction is given after a predetermined time has elapsed (S08). In the information specifying the SMS included in the retransmission instruction, the information specifying the time stamp and the sender of the SMS is the same as the information included in the first SMS distribution instruction.

  When the SMS delivery instruction receiving unit 31 of the S-CSCF 30 receives an instruction related to retransmission, the SMS transmitting unit 32 refers to the non-delivery information management unit 33 to determine a UE as a retransmission destination (S09: message retransmission step). Then, the SMS is transmitted to the UE as the retransmission destination (S10: message retransmission step).

  In this embodiment, regardless of whether it is retransmission or not, when an SMS delivery instruction is received, the UE as the transmission destination is determined with reference to the non-delivery information management unit 33 (S09). It can be set as the structure which transmits (S10). However, when the SMS distribution instruction transmitted from the SMSC 10 is a retransmission instruction, information specifying retransmission, such as a flag indicating retransmission, may be provided. If this flag is given, the S-CSCF 30 determines that the instruction is a retransmission instruction, and performs processing related to message retransmission (S09, S10).

  A procedure of processing in the S-CSCF 30 related to determination of a retransmission destination (S09) and SMS distribution (S10) will be described with reference to FIG.

  First, when the SMS delivery instruction receiving unit 31 receives an SMS retransmission instruction from the SMSC 10 (S31), the SMS transmission unit 32 first receives an SMS time stamp (timestamp of the SMS transmitted last time) included in the retransmission instruction. Then, it is confirmed whether or not the non-delivery information management unit 33 matches the time stamp of the non-delivery information (S32). Also, if the SMS time stamp included in the retransmission instruction (the time stamp of the SMS transmitted last time) matches the time stamp of the non-delivery information held in the non-delivery information management unit 33 (YES in S33) It is confirmed whether the information related to the sender of the SMS included in the instruction matches the sender information held in the non-delivery information management unit 33 in association with the time stamp (S33).

  When the time stamp of the SMS included in the retransmission instruction (the time stamp of the SMS transmitted last time) does not match the time stamp of the non-delivery information held in the non-delivery information management unit 33 (S32-NO), and the retransmission instruction If the information related to the sender of the SMS included in the message and the information of the sender held in correspondence with the time stamp in the non-delivery information management unit 33 do not match (S33-NO), the non-delivery information management Since the non-delivery information corresponding to the SMS to be retransmitted is not held in the unit 33, the SMS transmitting unit 32 transmits SMS to both the main terminal and the sub terminal using forking as usual.

  On the other hand, if the information related to the sender of the SMS included in the retransmission instruction matches the information of the sender held in association with the time stamp in the non-delivery information management unit 33 (S33-YES) Since the delivery information management unit 33 holds non-delivery information corresponding to the SMS to be retransmitted, the SMS transmission destination is determined based on the non-delivery information. That is, it is determined whether or not information indicating non-delivery to the sub-terminal is held as non-delivery information (S35). When information indicating non-delivery to the sub-terminal is held (S35- YES), the SMS transmitter 32 retransmits the SMS only to the sub-terminal (S36). On the other hand, when information indicating non-delivery to the sub-terminal is not held (S35-NO), the SMS transmitting unit 32 retransmits the SMS only to the main terminal (S37).

  As described above, in the S-CSCF 30 as the message delivery control device according to the present embodiment and the message delivery control method by the S-CSCF 30, the SMS sending unit 32 as the message sending unit sends a message addressed to the communication terminal. Based on an instruction from the SMSC 10 as a message management device to be managed, a message addressed to a specific telephone number is transmitted to the plurality of communication terminals. In addition, in the non-delivery information management unit 33, when the message is non-delivery at some of the communication terminals included in the plurality of communication terminals that have transmitted the message addressed to the specific telephone number, information for specifying the message And information specifying the communication terminal that has failed to reach the message are stored in association with each other. Then, in the SMS transmission unit 32 as the message retransmission unit, when the message addressed to the specific telephone number is retransmitted based on the instruction from the SMSC 10 as the message management device, the information held in the non-delivery information management unit 33 is stored. Based on this, the message is retransmitted only to the communication terminal that has not reached the message. Therefore, when delivering a message to a plurality of communication terminals using forking, double delivery to each communication terminal can be prevented.

  Conventionally, it has been studied to deliver SMS messages to a plurality of communication terminals associated with the same telephone number using forking. However, in the SMS distribution using forking, it has not been studied how to cope with the need for retransmission. In addition, an instruction relating to message retransmission is performed from the message management apparatus (SMSC 10) that accumulates and manages messages to the message distribution control apparatus (S-CSCF 30). I don't know if I use forking. Therefore, the message management device can give instructions related to message delivery and retransmission, but all of the messages delivered to a plurality of communication terminals corresponding to the same telephone number using forking It was not possible to confirm whether the message was properly delivered to the communication terminal.

  Also in the message delivery control device, conventionally, when resending the same message to a plurality of communication terminals using forking, the same message may be delivered to a plurality of communication terminals at once. Assumed. Further, the message distribution control device has a function of distributing a message based on an instruction from the message management device, but does not have a function of storing a message. Therefore, the message delivery control device does not have a function of independently resending a message. Therefore, when resending a message based on the function sharing between the conventional message management device and the message delivery control device, some of the communication terminals (the first message is properly delivered). Communication terminal) may receive the same message twice.

  In contrast, in the message delivery control device according to the present embodiment, when a message addressed to a specific telephone number is retransmitted, the message is based on information held in the non-delivery information management unit 33 of the S-CSCF 30. The message is retransmitted only to the communication terminal that has not been delivered. Therefore, when delivering a message to a plurality of communication terminals using forking, the message can be prevented from being retransmitted to a communication terminal in which the first message is properly delivered. Double delivery can be prevented.

  Further, when the S-CSCF 30 side of the message delivery control device holds message non-delivery information and receives a message retransmission instruction from the message management device, it is based on the information held by the non-delivery information management unit 33. By adopting a mode for determining the retransmission destination, even when the message management device is provided in another network, it is possible to prevent double delivery of messages. In this embodiment, it is assumed that the SMSC 10 as a message management device is provided in the same network. For example, when SMS is transmitted and received between networks provided by different communication carriers, the SMSC 10 It can be considered to be provided in another network. Since information related to forking use of a communication terminal that communicates by connecting to a specific network is not information grasped in another network, it is conceivable to manage the message retransmission destination on the SMSC side of the other network. Absent. On the other hand, as described in the present embodiment, the message management device SMSC 10 is provided in another network by holding the message non-delivery information on the S-CSCF 30 side of the message delivery control device. Even so, the retransmission destination can be appropriately determined based on the information held by the non-delivery information management unit 33 of the S-CSCF 30. Therefore, even if the message is distributed between different networks, double distribution of the message can be prevented.

  Further, as described in the above embodiment, the distribution result transmission unit 35 of the S-CSCF 30 does not reach the message in some communication terminals included in a plurality of communication terminals that have transmitted a message addressed to a specific telephone number. The response signal requesting retransmission of the message is transmitted to the SMSC 10 as the message management device. With this configuration, when a message is received at some communication terminals but the message has not reached another communication terminal, a message retransmission instruction from the message management device Therefore, the message can be appropriately retransmitted to the communication terminal that has not been delivered while preventing double delivery.

  The message delivery control device and the message delivery method according to an embodiment of the present invention have been described above, but the present invention is not limited to the above configuration and can be changed as appropriate.

  For example, in the above-described embodiment, the case where the function as the message delivery control device is provided in the S-CSCF 30 has been described. However, the function related to the message delivery control device is configured in a distributed manner in a plurality of devices. There may be. Further, the function as a message delivery control device may be installed in the IP-SM-GW 20 or other device as an application server. Since the message delivery control device is provided in the device different from the SMSC 10 as the message management device and downstream of the SMSC 10 (closer to the UE), The effect which prevents double delivery can be show | played effectively.

  Moreover, although the said embodiment demonstrated the case where the same SMS was delivered with respect to two communication terminals (UE40A, 40B) using forking, the number of the communication terminals matched with the same telephone number is It may be 3 or more. In that case, the non-delivery information management unit 33 holds information that identifies which communication terminal of the plurality of communication terminals has not been delivered (for example, associated with the communication terminal that has failed to deliver SMS) (Retained solid number), it is possible to appropriately control the SMS retransmission.

  Further, in the above-described embodiment, the configuration has been described in which the SMS is specified using the SMS time stamp and the information (phone number) that specifies the sender of the SMS. However, when SMS is transmitted and retransmitted, it is sufficient that the target SMS can be identified, and the method is not particularly limited. As a method for specifying the SMS, for example, an individual ID may be assigned to each SMS, and SMS may be transmitted and retransmitted using this ID. In that case, for example, the non-delivery information management unit 33 can be configured to hold the ID assigned to the SMS and information specifying the non-delivery communication terminal (UE) in association with each other.

  In the above-described embodiment, the non-delivery information management unit 33 has been described with respect to a configuration in which only information related to a message including a non-delivery terminal is stored. In other words, it may be configured to hold the distribution result when all distribution is successful or distribution failure. In that case, the SMS transmission unit 32 of the S-CSCF 30 confirms the previous delivery result of the message to be retransmitted with reference to the non-delivery information management unit 33 before resending the message based on the message retransmission instruction. The transmission destination can be determined based on the result.

(Other)
The block diagram used in the description of the above embodiment shows functional unit blocks. These functional blocks (components) are realized by any combination of hardware and / or software. Further, the means for realizing each functional block is not particularly limited. That is, each functional block may be realized by one device physically and / or logically coupled, and two or more devices physically and / or logically separated may be directly and / or indirectly. (For example, wired and / or wireless) and may be realized by these plural devices.

  For example, the message delivery control device (S-CSCF 30) in one embodiment of the present invention may function as a computer that performs processing of the message delivery control device of this embodiment. FIG. 6 is a diagram illustrating an example of a hardware configuration of the message delivery control apparatus according to the present embodiment. The message delivery control device (S-CSCF 30) described above is physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. Also good.

  In the following description, the term “apparatus” can be read as a circuit, a device, a unit, or the like. The hardware configuration of the message delivery control device may be configured to include one or a plurality of the devices illustrated in the figure, or may be configured not to include some devices.

  Each function in the message distribution control device is such that predetermined processor (program) is read on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs calculation, and communication by the communication device 1004, memory 1002 and storage. This is realized by controlling reading and / or writing of data in 1003.

  For example, the processor 1001 controls the entire computer by operating an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like. For example, each function of the message delivery control device may be realized by the processor 1001.

  Further, the processor 1001 reads a program (program code), software module, and data from the storage 1003 and / or the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. For example, each function of the message delivery control device may be realized by a control program stored in the memory 1002 and operating on the processor 1001. Although the above-described various processes have been described as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.

  The memory 1002 is a computer-readable recording medium and includes, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), and the like. May be. The memory 1002 may be called a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, and the like that can be executed to perform the method according to the embodiment of the present invention.

  The storage 1003 is a computer-readable recording medium, such as an optical disc such as a CD-ROM (Compact Disc ROM), a hard disc drive, a flexible disc, a magneto-optical disc (eg, a compact disc, a digital versatile disc, a Blu-ray). (Registered trademark) disk, smart card, flash memory (for example, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like. The storage 1003 may be referred to as an auxiliary storage device. The storage medium described above may be, for example, a database, server, or other suitable medium including the memory 1002 and / or the storage 1003.

  The communication device 1004 is hardware (transmission / reception device) for performing communication between computers via a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, or the like. For example, each function of the message delivery control device may be realized by the communication device 1004.

  The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, or the like) that accepts an external input. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that performs output to the outside. The input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

  Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured with a single bus or may be configured with different buses between apparatuses.

  The message distribution control device includes hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA). A part or all of each functional block may be realized by the hardware. For example, the processor 1001 may be implemented by at least one of these hardware.

  Although the present embodiment has been described in detail above, it will be apparent to those skilled in the art that the present embodiment is not limited to the embodiment described in this specification. The present embodiment can be implemented as a modification and change without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present embodiment.

  The notification of information is not limited to the aspect / embodiment described in the present specification, and may be performed by other methods. For example, information notification includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or a combination thereof. The RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.

  As long as there is no contradiction, the order of the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in this specification may be changed. For example, the methods described herein present the elements of the various steps in an exemplary order and are not limited to the specific order presented.

  Input / output information and the like may be stored in a specific location (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information or the like may be transmitted to another device.

  The determination may be performed by a value (0 or 1) represented by 1 bit, may be performed by a true / false value (Boolean: true or false), or may be performed by comparing numerical values (for example, a predetermined value) Comparison with the value).

  Each aspect / embodiment described in this specification may be used independently, may be used in combination, or may be switched according to execution. In addition, notification of predetermined information (for example, notification of being “X”) is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.

  Software, whether it is called software, firmware, middleware, microcode, hardware description language, or other names, instructions, instruction sets, code, code segments, program codes, programs, subprograms, software modules , Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc. should be interpreted broadly.

  Also, software, instructions, etc. may be transmitted / received via a transmission medium. For example, software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave. When transmitted from a remote source, these wired and / or wireless technologies are included within the definition of transmission media.

  Information, signals, etc. described herein may be represented using any of a variety of different technologies. For example, data, commands, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these May be represented by a combination of

  Note that the terms described in this specification and / or terms necessary for understanding this specification may be replaced with terms having the same or similar meaning.

  As used herein, the terms “system” and “network” are used interchangeably.

  In addition, information, parameters, and the like described in this specification may be represented by absolute values, may be represented by relative values from a predetermined value, or may be represented by other corresponding information. .

  The names used for the parameters described above are not limiting in any way. Further, mathematical formulas and the like that use these parameters may differ from those explicitly disclosed herein.

  As used herein, the terms “determining” and “determining” may encompass a wide variety of actions. “Judgment” and “determination” are, for example, judgment, calculation, calculation, processing, derivation, investigating, looking up (eg, table , Searching in a database or another data structure), considering ascertaining as “determining”, “deciding”, and the like. In addition, “determination” and “determination” include receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (accessing) (e.g., accessing data in a memory) may be considered as "determined" or "determined". In addition, “determination” and “decision” means that “resolving”, “selecting”, “choosing”, “establishing”, and “comparing” are regarded as “determining” and “deciding”. May be included. In other words, “determination” and “determination” may include considering some operation as “determination” and “determination”.

  The terms “connected”, “coupled”, or any variation thereof, means any direct or indirect connection or coupling between two or more elements and It can include the presence of one or more intermediate elements between two “connected” or “coupled” elements. The coupling or connection between the elements may be physical, logical, or a combination thereof. As used herein, the two elements are radio frequency by using one or more wires, cables and / or printed electrical connections, and as some non-limiting and non-inclusive examples By using electromagnetic energy, such as electromagnetic energy having a wavelength in the region, microwave region, and light (both visible and invisible) region, it can be considered to be “connected” or “coupled” to each other.

  As used herein, the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”

  Where the designation "first", "second", etc. is used herein, any reference to that element does not generally limit the amount or order of those elements. These designations can be used herein as a convenient way to distinguish between two or more elements. Thus, a reference to the first and second elements does not mean that only two elements can be employed there, or that in some way the first element must precede the second element.

  These terms are similar to the term “comprising” as long as “include”, “including” and variations thereof are used herein or in the claims. It is intended to be comprehensive. Furthermore, the term “or” as used herein or in the claims is not intended to be an exclusive OR.

  In this specification, a plurality of devices are also included unless there is only one device that is clearly present in context or technically. Throughout this disclosure, the plural is included unless the context clearly indicates one.

  DESCRIPTION OF SYMBOLS 1 ... Message delivery system, 10 ... SMSC, 20 ... IP-SM-GW, 30 ... S-CSCF, 31 ... SMS delivery instruction | indication receiving part, 32 ... SMS transmission part, 33 ... Non-delivery information management part, 34 ... Terminal response Receiving unit, 35 ... delivery result transmitting unit, 40A, 40B ... UE, 41 ... SMS processing unit.

Claims (3)

A message delivery control device that transmits a message addressed to a specific telephone number to a plurality of communication terminals associated with the specific telephone number,
A message transmission unit that transmits a message addressed to the specific telephone number to the plurality of communication terminals based on an instruction from a message management device that manages a message addressed to the communication terminal;
When the message is not delivered in some of the communication terminals included in the plurality of communication terminals that have transmitted the message addressed to the specific telephone number, information specifying the message, and the message is not delivered A non-delivery information management unit that associates and stores information that identifies the communication terminal that has become,
When resending a message addressed to the specific telephone number based on an instruction from the message management device, based on information held in the non-delivery information management unit, the communication terminal that has not reached the message A message retransmission unit that retransmits the message only to
A message delivery control device.   A response requesting the message management device to retransmit the message when the message is not delivered in some communication terminals included in the plurality of communication terminals that have transmitted the message addressed to the specific telephone number; The message delivery control device according to claim 1, further comprising a delivery result sending unit that sends a signal. A message delivery control method by a message delivery control device that transmits a message addressed to a specific telephone number to a plurality of communication terminals associated with the specific telephone number,
Message transmission for transmitting a message addressed to the specific telephone number to the plurality of communication terminals based on an instruction from a message management device that manages a message addressed to the communication terminal in a message transmission unit of the message delivery control device Steps,
In the non-delivery information management unit of the message delivery control device, when the message is non-delivery in some communication terminals included in the plurality of communication terminals that transmitted the message addressed to the specific telephone number, A non-delivery information holding step for holding information for identifying a message and information for identifying a communication terminal for which the message has not been delivered;
In the message retransmission unit of the message delivery control device, when retransmitting a message addressed to the specific telephone number based on an instruction from the message management device, based on information held in the non-delivery information management unit, A message retransmission step for retransmitting the message only to the communication terminal that has not reached the message;
Including a message delivery control method.

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