JP6801288B2 - Core network nodes and communication methods - Google Patents

Description

The present invention relates to core network nodes and communication methods.

When a mobile terminal receives an incoming call, the owner of the mobile terminal may not be able to answer the incoming call. For example, when the owner of the mobile terminal is absent. In such a case, for example, a technique is known that enables a person near the mobile terminal that received the incoming call to perform alternative response processing to the outgoing terminal instead of the incoming terminal by using the alternative terminal. (Patent Document 1, Patent Document 2).

JP 2006-033287 JP-A-2008-124592

However, in the technology of the above literature, the person performing the alternative processing must directly communicate with the caller. Therefore, a person who is reluctant to talk with a stranger also has a feeling of resistance to the alternative call itself.

Therefore, in the present invention, it is a core network node that relays communication between a first terminal and a second terminal that transmits a call to the first terminal, and includes alternative processing information from the third terminal. Refer to the receiving unit that receives the connection request to the core network node and the database that stores the alternative processing allowable condition that allows the alternative processing for the first terminal registered by the first terminal. The second determination unit determines whether or not the alternative processing information meets the alternative processing allowable condition, and when the determination unit determines that the alternative processing information meets the alternative processing allowable condition. The terminal is a core network node, which has a control unit for executing alternative processing based on the alternative processing information, and terminates the connection request at the core network node.

According to the aspect of the present invention, a person who notices the absentee terminal to which the call has arrived can perform the alternative processing without directly communicating with the caller.

Block diagram showing an example of the configuration of the communication system according to the embodiment of the present invention. Sequence diagram showing the operation according to the embodiment of the present invention A data table showing an example of data stored in the database according to the embodiment of the present invention. A flowchart showing the operation according to the embodiment of the present invention. A data table showing an example of data stored in the database according to the embodiment of the present invention. A flowchart showing the operation according to the embodiment of the present invention. A data table showing an example of data stored in the database according to the embodiment of the present invention. A flowchart showing the operation according to the embodiment of the present invention. A data table showing an example of data stored in the database according to the embodiment of the present invention. A flowchart showing the operation according to the embodiment of the present invention.

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

(First Embodiment)
FIG. 1 is a block diagram showing an example of a configuration of a communication system according to an embodiment of the present invention. The core network node 4 has a database 41, a receiving unit 42, a transmitting unit 43, a determination unit 44, a control unit 45, a paging control unit 46, a timer 47, a base station interface 48, and a network interface 49.

The core network node 4 is arranged in the core network, communicates with a base station or the like in the radio access network via the base station interface 48, and communicates with an external network such as the Internet via the network interface 49. The core network 4 may be, for example, a line switch such as an MSC (Mobile Switching Center), a packet switch such as an SGSN (Serving GPRS Service Node) or a GGSN (Gateway GPRS Service Node), or a transmitter or the like.

The call transmitted from the second terminal 2 to the first terminal 1 arrives at the core network node 4 from the network interface 49 via the communication network 5. The paging control unit 46 performs incoming paging based on the call. Incoming paging is performed from the base station interface 48 via the base station 6, and the first terminal 1 is called. The second terminal 2 may be a mobile phone or a fixed telephone. Therefore, the communication network 5 is a mobile communication network if the second terminal 2 is a mobile phone, and a PSTN (Public Switched Telephone Network) if the second terminal 2 is a fixed telephone.

Further, the third terminal 3 may be a mobile phone or a fixed telephone, or may be various devices (personal computer or the like) capable of transmitting and receiving e-mail. In FIG. 1, a state in which the third terminal 3 is a mobile phone and communicates with the base station 6 is shown, but when the third terminal 3 is a fixed telephone, the third terminal 3 is , PSTN is used to connect to the core network node 4 from the network interface 48.

The operation of this embodiment will be described with reference to the sequence diagram of FIG.

The first terminal 1 is a terminal that performs alternative processing when an incoming call cannot be answered, such as when the owner is absent. That is, the first terminal 1 is, in other words, an absentee terminal. The owner of the first terminal 1 registers in advance in the database 41 of the core network node 4 an alternative processing allowable condition that allows alternative processing for the first terminal 1 (S1). The alternative processing permissible condition may include, for example, a candidate group of alternative response messages that the first terminal 1 desires to send to the second terminal 2 in the alternative processing.

In such a state, the second terminal 2 makes a telephone call to the first terminal 1 (S2). Along with this, the paging control unit 46 performs incoming paging to the first terminal 1. When the telephone call arrives at the first terminal 1, for example, a ring tone sounds at the first terminal 1. When the owner of the first terminal 1 cannot answer such as being absent, that is, when the terminal is an absent terminal, the incoming call of the first terminal 1 is left unattended, such as recognizing the ringing of the ringtone of the first terminal 1. A person who notices the presence makes a connection request from the third terminal 3 to the core network node 4 (S3). The third terminal 3 includes alternative processing information in this connection request.

If the receiving unit 42 of the core network node 4 receives the connection request while the paging control unit 46 is performing incoming paging to the first terminal 1, the paging control unit 46 will use the first terminal. Incoming paging to 1 may be stopped.

The alternative processing information is information indicating that the third terminal 3 intends to perform alternative processing for the first terminal 1. This alternative processing information may include candidates for alternative response messages that the third terminal 3 intends to send to the second terminal 2 in the alternative processing. The candidate of the alternative response message included in the alternative processing information may be the message itself or the code corresponding to the message. The database 41 may hold a mapping table that associates the alternative response message itself with the code corresponding to the alternative response message.

The alternative response message in the present invention may be a text message or a voice message. An alternative response message consisting of a text message may be transmitted and received by a PS (Packet Switched) method. Further, the alternative response message composed of the voice message may be transmitted and received by a circuit switching method using a CS (Circuit Switched) connection, for example, CSFB (Circuit Switched FallBack).

Here, the core network node 4 terminates the connection request (S4). That is, since the core network node 4 does not transfer the connection request to the first terminal 1 or the second terminal 2, a connection is established between the third terminal 3 and the first terminal 1 or the second terminal 2. Not done. In other words, this connection request does not allow the third terminal 3 to directly communicate with the first terminal 1 or the second terminal 2.

Subsequently, the determination unit 44 refers to the database 41 and determines whether the alternative processing information received from the third terminal 3 meets the alternative processing allowable condition registered by the first terminal 1 in step S1 (S5). .. When the determination unit 44 determines that the alternative processing information satisfies the alternative processing allowable condition, the control unit 45 executes the alternative processing to the second terminal 2 (S6).

As the alternative process, the core network node 4 sends an alternative process message to the second terminal 2, the process of changing the state of the first terminal 1, specifically, for example, the first terminal 1 is put into the offline mode. Examples include switching, switching to the manner mode, and transferring a call received to the first terminal 1 to another terminal registered in advance in the database.

When the alternative process is a process in which the core network node 4 transmits an alternative response message to the second terminal 2, the determination unit 44 in step S5 determines that the alternative response message candidates included in the alternative process information are candidates. It may be determined whether or not it is included in the candidate group of the alternative response message included in the alternative processing tolerance condition. If it is determined that the alternative response message candidates included in the alternative processing information correspond to any of the alternative response message candidates included in the alternative processing tolerance condition, the core network node 4 is concerned. The alternative response message or the alternative response message corresponding to the code is transmitted to the second terminal 2. On the other hand, if it is determined that the alternative response message candidates included in the alternative processing information do not correspond to any of the alternative response message candidate groups included in the alternative processing allowable conditions, the core network node 4 May not execute the alternative process.

The variation of the operation described in this embodiment can also be applied to the second to fifth embodiments described below.

According to the operation according to the present embodiment, a person who notices the absentee terminal to which the call has arrived can perform the alternative processing without directly communicating with the caller.

(Second Embodiment)
This embodiment describes the first embodiment in more detail.

FIG. 3 is a data table showing an example of the alternative processing allowable condition registered in the database 41. As the alternative processing permissible condition in the present embodiment, the first identification information of the first terminal 1 and the second identification information of the third terminal 3 to which the first terminal 1 allows the alternative processing are registered. There is. Here, the second identification information is registered corresponding to the first identification information. The identification information is, for example, a telephone number of a terminal, an e-mail address, or the like.

Further, in the present embodiment, the alternative processing information transmitted by the third terminal 3 to the core network node 4 includes the third identification information of the first terminal to be the alternative processing by the third terminal 3 and the third identification information. The fourth identification information of the third terminal is included.

The operation of the core network node 4 according to the present embodiment will be described with reference to the flowchart of FIG. FIG. 4 shows the operations after step S3 in the sequence diagram of FIG. 2 used in the description of the first embodiment.

First, the core network node 4 receives a connection request from the third terminal 3 (S101). Then, as described in the first embodiment, the core network node 4 terminates the received connection request (S102).

Next, the determination unit 44 refers to the database 41, and whether the third identification information is registered as the first identification information, or the fourth identification information corresponds to the third identification information, and the second identification It is determined whether two items are registered as information (S103).

As a result of the determination by the determination unit 44 in step S103, if even one item is not registered, the control unit 45 does not execute the alternative process (S104). When all the items are registered, the determination unit 44 determines that the alternative processing information satisfies the alternative processing allowable condition (S105). Then, the control unit 45 executes the alternative process (S106).

According to the operation according to the present embodiment, the alternative processing can be performed only when the terminal for which the alternative processing is to be performed is a terminal that is previously permitted by the owner of the absentee terminal. At this time, the person who notices the incoming call of the absentee terminal can perform the alternative processing without directly communicating with the caller. As a result, it is possible to prevent the alternative processing by a person who does not want the owner of the absentee terminal.

(Third Embodiment)
This embodiment describes the second embodiment in more detail.

FIG. 5 is a data table showing an example of alternative processing allowable conditions registered in the database 41. As the alternative processing permissible condition in the present embodiment, in addition to the first identification information and the second identification information shown in FIG. 3, time zone designation information that specifies the time zone in which the alternative processing is permitted is registered. .. The time zone designation information is registered corresponding to the second identification information.

The time zone designation information is included in the alternative processing allowable condition from the viewpoint of designating the third terminal 3 that allows alternative processing according to the time zone in which the owner of the first terminal 1 is active. ..

For example, the owner of the first terminal 1 who operates at the office A from 9:00 to 17:00 and sometimes operates at the office B between 12:00 and 17:00 is the telephone number (ABB) of the fixed telephone of the office A. -MM-XXXX) or the telephone number (ACB-NM-XXXX) of the mobile phone owned by a colleague of the business establishment A is set as the second identification information. Then, the owner of the first terminal 1 sets the time zone designation information from 9:00 to 17:00 in correspondence with the second identification information. In addition, the owner of the first terminal 1 also sets the telephone number (CAA-NL-XXXX) of the home fixed telephone as the second identification information in the home C, and specifies the time zone corresponding to this. Information is set from 0:00 to 24:00 all day long.

The operation of the core network node 4 according to the present embodiment will be described with reference to the flowchart of FIG. Similar to FIG. 4, FIG. 6 also shows the operations after step S3 in the sequence diagram of FIG. 2 used in the description of the first embodiment.

First, the core network node 4 receives a connection request from the third terminal 3 (S201). At this time, the timer 47 in the core network node 4 acquires the time when the connection request is received. Then, as described in the first embodiment, the core network node 4 terminates the received connection request (S202).

Next, the determination unit 44 refers to the database 41, and whether the above-mentioned third identification information is registered as the first identification information, or whether the above-mentioned fourth identification information corresponds to the third identification information. It is determined whether the connection request reception time is registered in the time zone designation information corresponding to the fourth identification information in the second identification information, whether it is registered as the second identification information or not. (S203).

As a result of the determination by the determination unit 44 in step S203, if even one item is not registered, the control unit 45 does not execute the alternative process (S204). When all the items are registered, the determination unit 44 determines that the alternative processing information satisfies the alternative processing allowable condition (S205). Then, the control unit 45 executes the alternative process (S206).

In the present embodiment, for example, a fixed telephone (phone number ABB-MM-XXXX) of the office A or a colleague of the office A responds to a call received to the first terminal 1 in the time zone from 9:00 to 12:00. Alternative processing is possible from the telephone number (telephone number ACB-NM-XXXX) of the mobile phone owned. However, for example, from the telephone (phone number BAC-LL-XXXX) of the office B where the alternative processing is allowed only in the time zone from 12:00 to 17:00, the alternative processing is allowed in the time zone from 9:00 to 12:00. Not done.

According to the operation according to the present embodiment, the alternative processing is permitted under the condition that the identification information and the time zone of the terminal to be performed the alternative processing match according to the time zone when the call to the absentee terminal arrives. Will be done. At this time, the person who notices the incoming call of the absentee terminal can perform the alternative processing without directly communicating with the caller.

(Fourth Embodiment)
This embodiment describes another embodiment of the third embodiment.

FIG. 7 is a data table showing an example of the alternative processing allowable condition registered in the database 41. As the alternative processing permissible condition in the present embodiment, in addition to the first identification information and the second identification information shown in FIG. 3, the position designation information and the first position information of the third terminal 3 are registered. There is. Here, the first position information can be grasped from the second identification information, and is registered corresponding to the second identification information.

The position designation information is information indicating the position of the third terminal 3 to which the first terminal 1 allows alternative processing. The position designation information may be information for each base station that covers the communication area in which the third terminal 3 is located. The position designation information is located at a position where the first terminal 1 itself is presumed to exist when the alternative processing is performed, or when the first terminal 1 registers the alternative processing allowable condition in the database 41. It may be information indicating the place where it was. In this case, the database 41 may manage the position information based on the position registration operation performed by the first terminal 1. The determination unit 44 may grasp the location where the first terminal 1 is located based on the position information based on this position registration operation.

The location designation information is included in the alternative processing allowable condition from the viewpoint of allowing the alternative processing only in a specific place such as a business establishment or a home where the owner of the first terminal 1 works. In the present embodiment, the alternative processing is permitted only when the third terminal 3 is located at the place specified by the owner of the first terminal 1 in the position designation information.

The operation of the core network node 4 according to the present embodiment will be described with reference to the flowchart of FIG. Similar to FIG. 4, FIG. 8 also shows the operations after step S3 in the sequence diagram of FIG. 2 used in the description of the first embodiment.

First, the core network node 4 receives a connection request from the third terminal 3 (S301). Then, as described in the first embodiment, the core network node 4 terminates the received connection request (S302).

Next, the determination unit 44 refers to the database 41, and whether the above-mentioned third identification information is registered as the first identification information, or whether the above-mentioned fourth identification information corresponds to the third identification information. It is determined whether three items are registered as the second identification information or the first position information is registered as the position designation information (S303).

As a result of the determination by the determination unit 44 in step S302, if the first position information is not registered as the position designation information, the control unit 45 does not execute the alternative process (S304). For example, in FIG. 6, since the position designation information that allows the first terminal 1 (telephone number ACB-LM-XXXX) to perform alternative processing is A, the terminal (telephone number CAA-NL-XXXX) is even a second identification. In terms of information, even if the information is registered in the database 41 as the third terminal 3, since the first position information is C, alternative processing is not allowed.

When these items are registered, the determination unit 44 determines that the alternative processing information matches the alternative processing allowable condition (S305). Then, the control unit 45 executes the alternative process (S306).

According to the operation according to the present embodiment, the alternative processing is permitted under the condition that the identification information and the position information of the terminal to be the alternative processing for the absent terminal match. At this time, the person who notices the incoming call of the absentee terminal can perform the alternative processing without directly communicating with the caller.

(Fifth Embodiment)
This embodiment describes another embodiment of the third and fourth embodiments.

FIG. 9 is a data table showing an example of the alternative processing allowable condition registered in the database 41. As the alternative processing allowable condition in the present embodiment, in addition to the first identification information and the second identification information shown in FIG. 3, the time zone designation information and the first position information of the third terminal 3 are registered. ing. Here, the first position information is registered corresponding to the second identification information.

Here, the alternative processing allowable condition may further include the position designation information described in the fourth embodiment.

The operation of the core network node 4 according to the present embodiment will be described with reference to the flowchart of FIG. Similar to FIG. 4, FIG. 10 also shows the operations after step S3 in the sequence diagram of FIG. 2 used in the description of the first embodiment.

First, the core network node 4 receives a connection request from the third terminal 3 (S401). Then, as described in the first embodiment, the core network node 4 terminates the received connection request (S402).

Next, the determination unit 44 refers to the database 41, and whether the above-mentioned third identification information is registered as the first identification information, or whether the above-mentioned fourth identification information corresponds to the third identification information. Whether it is registered as the second identification information, whether the connection request reception time is registered in the time zone designation information corresponding to the fourth identification information in the second identification information, and whether the first position information is the position. It is determined whether four items are registered as designated information (S403).

As a result of the determination by the determination unit 44 in step S402, if the above item is not registered, the control unit 45 does not execute the alternative process (S404).

When the above items are registered, the determination unit 44 determines that the alternative processing information matches the alternative processing allowable condition (S405). Then, the control unit 45 executes the alternative process (S406).

According to the operation according to the present embodiment, the identification information of the terminal for which the alternative processing for the absentee terminal is to be performed, the first terminal 1 and the third terminal, corresponding to the time zone when the call to the absentee terminal arrives. Alternative processing is allowed under the condition that the location information of the terminal matches. At this time, the person who notices the incoming call of the absentee terminal can perform the alternative processing without directly communicating with the caller.

The embodiments of the present invention have been described above. The present invention is not limited to the above-described embodiment, and can be variously modified and implemented within the scope of the gist of the present invention. The above-described embodiment is an example, and it is understood that various modifications can be made to the combination of embodiments, their respective components, and the combination of each processing process, and that such modifications are also within the scope of the present invention. It is being understood by those skilled in the art.

For example, the steps in the processes described herein do not necessarily have to be performed in chronological order in the order described in the sequence diagram. For example, the steps in the process may be executed in an order different from the order described in the sequence diagram, or may be executed in parallel.

Further, the base station described in the present specification may include, for example, components such as a communication processing unit, a requesting unit, an information acquisition unit, and / or a reporting unit. Further, a module having these components (for example, a base station device or a module for a base station device) may be provided. Further, a method including the processing of the component may be provided, and a program for causing the processor to execute the processing of the component may be provided. In addition, a recording medium on which the program is recorded may be provided. Of course, such modules, methods, programs and recording media are also included in the present invention.

Further, the terminal described in the present specification may have components such as an RF (Radio Frequency) transceiver, an antenna, a baseband processor, an application processor, and a memory.

An RF transceiver (RF) transceiver performs analog RF signal processing to communicate with a base station. The analog RF signal processing performed by the RF transceiver may include frequency up-conversion, frequency down-conversion, and amplification. The RF transceiver may be coupled with an antenna and a baseband processor. That is, the RF transceiver may receive modulation symbol data (or OFDM (Orthogonal Frequency Frequency Multiplexing) symbol data) from the baseband processor, generate a transmit RF signal, and supply the transmit RF signal to the antenna. The RF transceiver may also generate a baseband receive signal based on the received RF signal received by the antenna and supply it to the baseband processor.

The baseband processor performs digital baseband signal processing (data plane processing) and control plane processing for wireless communication. Digital baseband signal processing includes (a) data compression / restoration, (b) data segmentation / concatenation, (c) transmission format (transmission frame) generation / decomposition, and (d) transmission path coding / decoding. , (E) Modulation (symbol mapping) / demodulation, and (f) Generation of OFDM symbol data (baseband OFDM signal) by Inverse Fast Fourier Transmission (IFFT) and the like may be included. On the other hand, the control plane processing includes layer 1 (eg, transmission power control), layer 2 (eg, radio resource management, and hybrid automatic repeat request (HARQ) processing), and layer 3 (eg). Communication management of (signaling related to attachment, mobility, and call management) may be included.

For example, in the case of LTE and LTE-Advanced, the digital baseband signal processing by the baseband processor is performed by the PDCP (Packet Data Convergence Protocol) layer, the RLC (Radio Link Control) layer, the MAC (Media Access Control) layer, and the PHY (PHY) layer. ) Layer signal processing may be included. In addition, the control plane processing by the baseband processor 2003 may include processing of NAS (Non-Access Stratum) protocol, RRC (Radio Resource Control) protocol, and MAC CE (MAC Control Element).

The baseband processor is a modem processor (eg, DSP (Digital Signal Processor)) that performs digital baseband signal processing and a protocol stack processor (eg, CPU (Central Processing Unit)) that performs control plane processing. , Or MPU (Micro Processing Unit) may be included. In this case, the protocol stack processor that performs the control plane processing may be shared with the application processor described later.

The application processor is also referred to as a CPU, MPU, microprocessor, or processor core. The application processor may include a plurality of processors (a plurality of processor cores). Application processors include system software programs (OS (Operating System)) read from memory or memory (not shown) and various application programs (eg, call applications, WEB browsers, mailers, camera operation applications, music playback applications). By executing, various functions of the terminal are realized.

In some implementations, the baseband and application processors may be integrated on a single chip. In other words, the baseband processor and application processor may be implemented as one System on Chip (Soc) device. The SoC device may also be referred to as a system LSI (Large Scale Integration) or chipset.

The memory is a volatile memory, a non-volatile memory, or a combination thereof. The memory may include a plurality of physically independent memory devices. The volatile memory is, for example, SRAM (Static Random Access Memory) or DRAM (Dynamic RAM) or a combination thereof. The non-volatile memory may be a mask MROM (Read Only Memory), an EEPROM (Electrically Erasable Programmable ROM), a flash memory, or a hard disk drive, or any combination thereof. For example, the memory may include a baseband processor, an application processor, and an external memory device accessible from the SoC. The memory may include internal memory devices integrated in the baseband processor, application processor, or SoC. Further, the memory may include a memory in a UICC (Universal Integrated Circuit Card).

The memory may store a software module (computer program) including an instruction group and data for performing processing by the terminal described in the plurality of embodiments described above. In some implementations, the baseband processor or application processor may be configured to perform the terminal processing described in the embodiments described above by reading the software module from memory and executing it.

1 1st terminal 2 2nd terminal 3 3rd terminal 4 Core network node 41 Database 42 Reception unit 43 Transmission unit 44 Judgment unit 45 Control unit 46 Paging control unit 47 Timer 48 Base station interface 49 Network interface 5 Communication network

Claims (9)

A core network node that relays communication between a first terminal and a second terminal that makes a call to the first terminal.
A receiving unit that receives a connection request from the third terminal to the core network node including alternative processing information, and
With reference to the database that stores the alternative processing allowable condition that allows the alternative processing for the first terminal registered by the first terminal, whether or not the alternative processing information matches the alternative processing allowable condition is determined. Judgment unit and
When the determination unit determines that the alternative processing information satisfies the alternative processing allowable condition, a control unit that executes alternative processing based on the alternative processing information, and a control unit.
Have,
The connection request is terminated by the core network node,
The alternative process is a process of changing the state of the first terminal.
Core network node. The alternative processing permissible condition includes the second identification information of the third terminal corresponding to the first identification information of the first terminal.
The alternative processing information includes the third identification information of the first terminal to be substituted by the third terminal and the fourth identification information of the third terminal.
The determination unit
The third identification information is registered in the database as the first identification information.
When it is determined that the fourth identification information is registered in the database as the second identification information,
The determination unit determines that the alternative processing information matches the alternative processing allowable condition.
The core network node according to claim 1. The alternative processing permissible condition further includes time zone designation information corresponding to the second identification information of the third terminal.
The timer acquires the connection request reception time when the connection request is received,
When the determination unit further determines that the connection request reception time is registered in the time zone designation information corresponding to the fourth identification information,
The determination unit determines that the alternative processing information matches the alternative processing allowable condition.
The core network node according to claim 2. The alternative processing permissible condition further includes the position designation information and the first position information of the third terminal corresponding to the second identification information.
When the determination unit further determines that the first position information is registered in the database as the position designation information,
The determination unit determines that the alternative processing information matches the alternative processing allowable condition.
The core network node according to claim 2 or 3. The core network node according to any one of claims 1 to 4, wherein the alternative process is a process of transmitting an alternative process message to the second terminal. The alternative processing tolerance condition includes a candidate group of alternative response messages to be transmitted in the alternative processing.
The alternative processing information includes the candidate of the alternative response message.
The core network node according to any one of claims 1 to 5 , wherein the alternative process is a process of transmitting the candidate of the alternative response message as an alternative response message to the second terminal. Wherein the alternative treatment, the first terminal is switched to the offline mode, or Ru switched to silent mode, the core network node according to any one of claims 1 to 6. It has a paging control unit that performs incoming paging to the first terminal based on the call when the second terminal makes a call to the first terminal.
When the receiving unit receives the connection request while the paging control unit is performing incoming paging to the first terminal, the paging control unit stops the incoming paging to the first terminal. ,
The core network node according to any one of claims 1 to 7 . It is a communication method in which the second terminal performs alternative processing of the first terminal that made a call.
The step in which the first terminal registers the identification information of the third terminal in the core network node and the alternative processing permissible condition for permitting the alternative processing for the first terminal, and the core network node is the third terminal. A step of storing the identification information of the terminal and the alternative processing allowable condition, and
A step of receiving a connection request to the core network node including alternative processing information from the third terminal, and a step of determining whether or not the alternative processing information meets the alternative processing allowable condition.
A step of executing alternative processing based on the alternative processing information when the determination unit determines that the alternative processing information satisfies the alternative processing allowable condition.
Have a,
The alternative process is a process of changing the state of the first terminal.
Communication method.

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