JP2003309877A - Message automatic transfer system in mobile communication network - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a message automatic transfer system in mobile communication wherein a message desired to be transmitted is temporarily stored when either a calling terminal or a receiving terminal is in an incommunicable state and the stored message is automatically transferred when the incommunicable calling terminal or receiving terminal is communicable. <P>SOLUTION: A mobile terminal that is to transmit a message temporarily stores the message when the mobile terminal can not transmit the message due to a faulty radio wave state. When the radio wave state gets better so that the stored message can be transmitted, the message stored by the mobile terminal is transmitted. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a message automatic transfer method in mobile communication, and more particularly, to temporarily store a message to be transmitted when either a calling terminal or a called terminal is in a communication-disabled state. In particular, the present invention relates to an automatic message transfer method in mobile communication, which can automatically transfer a stored message when a calling terminal or a called terminal that cannot communicate is in a communicable state.

A mobile communication network for communicating using mobile terminals such as mobile phones and car phones is significantly different from a fixed communication network for communicating using fixed terminals installed in homes and businesses. The points are as follows. That is, information about the location of the mobile terminal that changes from moment to moment (this is referred to as "location information". Also, the presence of a mobile terminal in an area that is a territory of a base station is referred to as "location information". In this specification, "location information" and "location"
To explain. ) Is managed, the mobile terminal is called by the base station having the area where the mobile terminal is likely to exist as a subordinate by referring to the location information, and the mobile terminal is connected when there is a response. The point is that the method is adopted.

However, (1) since the owner of the mobile terminal is moving in a car or the like, the position where the mobile terminal is present changes from moment to moment, and finally the user is out of the communicable area. (2) Since the mobile phone uses a battery as the power source, the owner of the mobile phone may turn off the power switch to move, or the mobile phone may be in public. The mobile terminal called for the above-mentioned general call was turned off because the power switch was turned off in response to a request to turn off the power switch while riding You may not be able to respond. Since the paging is performed using a limited number of control channels, the fact that the called mobile terminal cannot respond to the paging means that the limited resources are wasted. .

Therefore, when either the calling terminal or the called terminal is in a communication-disabled state, the message to be transmitted is temporarily stored, and the calling terminal or the called terminal that was unable to communicate can communicate. It is an important function in mobile communication networks to be able to automatically transfer the stored message when it becomes.

[0005]

2. Description of the Related Art FIG. 11 is a diagram for explaining a conventional method of receiving a message stored in a message center. In FIG. 11, 1 is a mobile terminal that issues a message, 2
Is a mobile terminal that should receive the message transmitted by the mobile terminal 1, and 3 is a mobile communication switching station that constitutes the mobile communication network (in the figure, the abbreviation "MSC", which is the acronym for Mobile-service Switching Center) After that,
The above abbreviations are used in the figures. ) 4 is a message for temporarily storing the message transmitted by the mobile terminal 1 when the mobile terminal 2 is not in the service area or the power is turned off and communication is impossible.
The center 5 is a home location register (in the figure, an abbreviation "HL", which is an acronym for Home Location Register) that holds information on an area where the mobile terminal is likely to be located.
It is indicated by "R". The subsequent description will be similarly described in the drawings. ), 6 is a mobile communication switching station that constitutes a mobile communication network, 7 is a base station under the control of the mobile communication switching station 6 and having the territory shown by A and B in FIG. 11 (in the figure,
It is indicated by the abbreviation "BS", which is the acronym for Base Station. The subsequent description will be similarly described in the drawings. ).

In the mobile communication network of FIG. 11,
The conventional receiving method of the message stored in the message center is as follows. Hereinafter, the description will be given in the order of the parenthesized numbers described in FIG. 11. (1) The mobile terminal 1 makes a call and sends a message. (2) Mobile communication switching center 3 that has detected a call from mobile terminal 1
Queries the home location register 5 for the location information of the mobile terminal 2 and acquires the location information of the mobile terminal 2.

(3) The mobile communication switching center 3 relies on the location information acquired from the home location register 5 to establish a line between the mobile communication switching center 3 and the mobile communication switching center 6 which has an area corresponding to the location information. To set. (4) The mobile communication switching center 6 instructs the base station 7 having the area corresponding to the location information to call the mobile terminal 2, and (5) the base station 7 moves to the subordinate area. Call all at once.

At this time, it is assumed that the mobile terminal 2 does not respond because it is not in the service area or the power supply is cut off. (6) The base station 7 notifies the mobile communication switching center 6 that there is no response from the mobile terminal 2, and (7) the mobile communication switching center 6 turns off the power source of the mobile terminal 2 or turns off the power. The home location register 5 is notified of the fact.

(8) Home location register 5
Upon receipt of the notification that the mobile terminal 2 is not present or is powered off, the mobile terminal 1 stores the message sent by the mobile terminal 1 to the mobile switching center 3 in the message center 4. (9) The mobile switching center 3 stores the message transmitted by the mobile terminal 1 in the message center 4.

(10) After that, when the mobile terminal 2 returns to the service area or is turned on, the mobile terminal 2 accesses the message center 4 to receive a message addressed to itself, and (11) the message center 4 A message addressed to the mobile terminal 2 is searched and transmitted to the mobile terminal 2. The message transmitted by the mobile terminal 1 in the above procedure is transferred to the mobile terminal 2 which should receive the message.

[0011]

Therefore, the message
There is a problem that the message stored in the center 4 cannot be received unless the mobile terminal 2 which should receive the message accesses the message center 4. or,
If the mobile terminal 2 which should receive the message has not contracted with the message center 4 for answering machine service, there is a problem that the stored message cannot be received.

Furthermore, since the message center is accessed regardless of whether or not the message addressed to itself is stored in the message center, the message center can be accessed.
In a carrier's mobile communication network that charges for access to the center, access to the message center imposes a financial burden on the subscriber. The above is a problem when receiving a saved message when the calling mobile terminal is communicable and the mobile terminal to be received is incommunicable. There is a problem that the owner of the call terminal must repeatedly make a call according to his or her will.

In this case, when the calling terminal exists in a subway or a long tunnel and the owner of the calling terminal can recognize that communication is impossible, it is unlikely to repeatedly make a call. If the user is not aware of a poor radio wave condition and is not aware of it, there is a high possibility that the call will be repeatedly tried, which is annoying to the caller.

In view of such a problem, the present invention temporarily saves a message to be transmitted when either the calling terminal or the called terminal is in a communication disabled state, and An object of the present invention is to provide an automatic message transfer method in mobile communication, which is capable of automatically transferring a stored message when a called terminal is in a communicable state.

[0015]

[Means for Solving the Problems] The first aspect of the present invention is directed to the case where a message cannot be transmitted due to poor radio wave condition.
The mobile terminal transmitting the message temporarily stores the message, and when the radio wave condition improves and the stored message can be transmitted, the mobile terminal transmits the stored message. This is an automatic message transfer method in a mobile communication network.

According to the first aspect of the present invention, when the radio wave condition is poor and the message cannot be transmitted, the mobile terminal which intends to transmit the message temporarily stores the message, and the radio wave condition improves and is preserved. When the message can be transmitted, the mobile terminal transmits the stored message, so that the owner of the mobile terminal on the transmitting side can transmit the stored message without being aware of the radio wave condition.

A second aspect of the present invention temporarily stores the message in a message center in the mobile communication network when the mobile terminal which should receive the message cannot communicate, and transmits the message stored by the message center. It is an automatic message transfer method in mobile communication networks characterized by repeated attempts. According to the second invention, when the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the message stored by the message center is repeatedly transmitted. I will try
Even if the owner of the mobile terminal that should receive the message does not access the message center, and as long as the owner of the sending mobile terminal has a message storage contract with the message center. , The owner of the mobile terminal that should receive the message can receive the message.

A third aspect of the present invention, when a mobile terminal that should receive a message cannot communicate, temporarily stores the message in a message center in the mobile communication network, and the mobile terminal that should receive the message newly creates the message. If the home location register notifies the message center to that effect when the location is registered, and the message center stores the message addressed to the mobile terminal that should receive the message, the message An automatic message transfer method in a mobile communication network, in which the center sends the message to a mobile terminal on the receiving side.

According to the third aspect of the invention, when the mobile terminal which should receive the message cannot communicate, the mobile terminal which should receive the message temporarily stores the message in a message center in the mobile communication network. When a new location is registered, the home location register notifies the message center to that effect.
If the center stores a message addressed to the mobile terminal that should receive the message, the message center sends the message to the receiving mobile terminal. That is,
Since the message center sends the message to the receiving side mobile terminal when the receiving side mobile terminal can reliably receive the message, the communication channel of the mobile communication network is not wasted.

A fourth aspect of the present invention is a mobile communication network according to the first or second aspect of the present invention, which is characterized in that, in either of the automatic message transfer methods in the mobile communication network, a limit is set on a time for repeating transmission. It is an automatic message transfer method. According to the fourth aspect of the invention, since the time for repeating the transmission is limited, the transmission is not wastefully repeated, and the load on the mobile communication network can be reduced.

A fifth aspect of the present invention is a message to be transferred in a message to be transferred in the message automatic transfer method in the mobile communication network according to the first or second aspect of the invention. Is an automatic message transfer method in a mobile communication network characterized by adding a header message indicating

According to the fifth aspect of the invention, since a header message indicating that the message is once stored and transferred is added to the message to be transferred, the message is once transferred at the receiving side. It can be recognized that the message is stored and transferred, and confusion can be avoided especially when the conversation is once stored and transferred.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION The technology of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows the configuration of a mobile terminal used in the present invention. In FIG. 1, reference numeral 11 denotes a radio wave condition monitoring unit that monitors the radio wave condition by measuring the radio wave intensity transmitted by the base station. This can be shared with the part that normally performs location registration.

Reference numeral 12 denotes a function of storing a message when the radio wave condition monitoring unit 11 determines that the radio wave condition is poor, and a function of storing the message when the radio wave condition monitoring unit 11 determines that the radio wave condition has improved. It is a transmission control unit that controls. A message storage unit 13 stores a message and reads the stored message under the control of the transmission control unit 12.

Reference numeral 14 is a transmission memory that holds the message data read by the message storage unit 13 in preparation for transmission. Reference numeral 15 denotes a transmission / reception unit that transmits the stored message, receives the radio wave transmitted by the base station, and supplies the radio wave to the radio wave state monitoring unit 11. This can be used as a part that transmits a message in a normal state and also receives a radio wave transmitted by a base station.

Reference numeral 16 is a monitoring timer for transmitting the stored message within a predetermined time. FIG. 2 shows an automatic transfer process of a message from a mobile terminal when the mobile terminal on the transmitting side is in a place where the radio wave condition is not good and tries to send a message.
Hereinafter, the automatic transfer processing of the message from the mobile terminal will be described with reference to FIG.

S1. The radio wave condition monitoring unit 11 having the configuration of FIG.
Monitors whether the radio wave condition is good. This is because the level of the carrier transmitted by the base station is measured, and if the level of the carrier is equal to or higher than a predetermined level, it can be determined that the radio wave condition is good. That is, the radio wave condition monitoring unit 11 can be shared with the part that performs normal position registration.

S2. In step S1, the electric field state monitoring unit 1
If No. 1 determines that the radio wave condition is not good (No), the message storage unit 1 is instructed by the transmission control unit 12.
Save the message to be sent to 3 and the called number. Now, FIG. 9 shows data stored in the message storage unit. The message storage unit stores a message number, an incoming telephone number or an incoming mail address, a message length, and a message body for each message (one arrow on the right side of FIG. 9A corresponds to one message). It is provided with a message storage unit for storing, and a header / message storage unit for storing the message length and the message body of a header message indicating that the message has been temporarily stored and transferred.

Here, the header / message storage unit automatically stores a message once stored so that the recipient can correctly recognize and receive the transferred message if it is a voice message. This is added to indicate that the message has been transferred, but the message can be transferred even if omitted. S3. The transmission control unit 12 in FIG. 1 initializes and activates the monitoring timer 16.

S4. It is determined whether the monitoring timer 16 has timed out. This may be determined by the transmission control unit 12 by reading the timer value of the monitoring timer 16, but it is easier if the monitoring timer 16 itself times out when the predetermined timer value is decoded. S5. If it is determined in step S4 that the monitoring timer 16 has not timed out (No), it is determined whether the radio wave condition has improved.

If it is determined that the radio wave condition has not improved (No), the process jumps to step S4 and step S4.
4, the process of step S5 is repeated. S6. When it is determined in step S5 that the radio wave condition has improved (Yes), it is determined whether a call is made and a response is received from the receiving terminal. This judgment is made on the assumption that the calling terminal makes a call when the called terminal does not subscribe to the answering service. That is, the receiving terminal does not have a contract for the answering service, and
When the called terminal is in a state where communication is not possible, the message cannot be stored in the answering machine center. Therefore, since it is necessary to try the transfer a plurality of times, it is determined whether or not there is a response from the receiving terminal, the process jumps to step S4, and the subsequent processes are repeated.

In the case of e-mail or when the receiving terminal has a contract for the answering machine service, when the receiving terminal does not respond, the message is automatically saved in the box for saving the e-mail or answering machine. Therefore, the above determination is unnecessary. If it is determined that there is no response from the receiving terminal (No), the process jumps to step S4 and the subsequent processes are performed.

S7. If it is determined in step S6 that there is a response from the receiving terminal (Yes), the stored message is sent to the transmission memory 14 together with the header message.
, And the transmission / reception unit 15 transmits. FIG. 10 is a diagram showing the transmission data. The transmission data is stored in the same order, but the address storage unit that stores the destination telephone number or mail address, the header message length and the header message storage unit that stores the header message, and the message of the message to be transferred It consists of a message storage unit that stores the length and the message body. this is,
The telephone number or mail address of the called party read from the message storage, the header message length and the header
It is composed of the message, the message length of the message to be transferred, and the message body. However, when the header message is not stored in the message storage unit, the header message storage unit may be null data.

S8. The transmitted message is deleted from the message storage unit 13. To do this, the transmission control unit 12 may delete the message number and the message stored in the message storage unit 13. S9. It is determined whether or not there is any untransmitted message remaining in the message storage unit 13.

The remaining message is the message storage unit 1.
It can be determined that the message number in the message storage unit of the message storage unit 13 is all bits “0”. When it is determined that there is a message remaining in the message storage unit 13 (Yes), the process jumps to step S3 and the processes of step S3 and thereafter are continued.

On the other hand, if it is determined that there are no messages remaining in the message storage unit 13 (No), the process is terminated. S10. If it is determined in step S4 that the monitoring timer 16 has timed out (Yes), the message to be transmitted is deleted and the process proceeds to step S9.

This is because the transmission control unit 12 uses the monitoring timer 16
The time-out signal value of 1 may be read and deleted, or may be deleted by the time-out signal output from the monitoring timer 16 itself, but the latter can be applied when the message stored in the message storage unit 13 is single. S11. If it is determined in step S1 that the radio wave condition is good (Yes), it is possible to immediately communicate, so the input message is transmitted and the process ends. This process is a transmission process for a normal call.

In the flow chart of FIG. 2, first, in step S1, the mobile terminal on the transmitting side first confirms the radio wave condition to determine whether or not transmission is possible. Although the number is stored, if the owner of the mobile terminal on the sending side can recognize that the radio wave condition is not good when attempting to send the number, the owner of the mobile terminal on the sending side The operation of saving the number of the mobile terminal may be performed, and the processing after the saving operation may be automatically performed.

In any case, when the radio wave condition is poor and the message cannot be sent, the mobile terminal which is going to send the message temporarily saves the message, and when the radio wave condition improves, the saved message is saved. When the mobile terminal becomes ready to transmit, the transmission of the message stored by the mobile terminal is repeatedly tried, so that the owner of the mobile terminal on the transmitting side can transmit the stored message without being aware of the radio wave condition.

FIG. 3 is a diagram for explaining the automatic transfer of the message stored in the mobile terminal, and shows the automatic transfer procedure in the entire mobile communication network. In FIG. 3, 1 is a mobile terminal on the transmitting side, 2 is a mobile terminal on the receiving side, 3 is a mobile communication switching center accessible by the mobile terminal 1,
5 is a home location register, 6 is a mobile terminal 2
, A mobile telecommunication exchange that has jurisdiction over the area where
Reference numeral 7 is a base station that is under the control of the mobile communication switching center 6 and uses areas A and B as territories. Hereinafter, the procedure of automatic transfer will be described according to the numbers in parentheses in FIG.

(1) The mobile terminal 1 cannot send a message because the radio wave condition is bad, and stores the message. (2) The mobile terminal 1 makes a call when the radio wave condition improves or when it is time to try transmission. (3) The mobile communication switching center 3 that has accepted the call
The location register 5 requests the location information of the mobile terminal 2 and acquires the location information.

(4) The mobile telecommunication switching center 3 sets up a line with the mobile telecommunication switching center 6 which manages an area where the mobile terminal 2 is likely to be located in a different area according to the obtained area information. (5) The mobile switching center 6 instructs the base station 7 to call the mobile terminal 2. (6) The base station 7 calls the mobile terminal 2 by calling all at once.

If the mobile terminal 2 can actually communicate at the stage of (6), a line is set up between the mobile terminal 1 and the mobile terminal 2 to transfer the message stored in the mobile terminal 1. Done. FIG. 4 shows the structure of the message center used in the present invention. In FIG. 4, reference numeral 21 is a transmission control unit having a control function of storing the received message and transmitting the stored message. Here, the above-mentioned function can be shared with a part of the message center which performs a normal storage and transmission function.

22 is under the control of the transmission control unit 12.
The message storage unit stores a message and reads out the stored message. 23 is the message storage unit 13
It is a transmission memory that holds the message data read by the device in preparation for transmission. Reference numeral 24 denotes a transmission / reception unit that transmits the stored message, notifies the transmission control unit 21 when a message is received from the mobile terminal, and passes the received message to the message storage unit 22. this is,
It can be shared with the part of the message center that performs normal transmission and reception functions.

Reference numeral 25 is a monitoring timer for transmitting the stored message within a predetermined time. FIG. 5 shows an automatic transfer process (1) of a message from the message center, which is a process for automatically transferring a message autonomously stored by the message center.
Hereinafter, with reference to FIG. 4, a process of automatically transferring a message stored autonomously by the message center will be described.

S41. The transmission control unit 21 of FIG. 4 monitors whether or not a message to be stored has been received from the mobile terminal. If no message is received (No),
Continue the above monitoring. S42. When it is determined in step S41 that the message has been received (Yes), the received message and the number of the mobile terminal to which the message should arrive are stored in the message storage unit 22.

S43. The transmission control unit 21 uses the monitoring timer 2
Initialize 5 and start. S44. Try to send the saved message. S45. It is determined whether or not there is a response from the mobile terminal that should receive the message to be transmitted. S46. If it is determined in step S45 that there is a response from the mobile terminal that should receive the message to be transmitted, a header message is added to the stored message, the message is written to the transmission memory 23, and the message is transmitted from the transmission / reception unit 24.

S47. The transmitted message is deleted from the message storage unit 22. S48. It is determined whether or not there are remaining messages in the message storage unit 22. If there is no remaining message (No), the process ends. On the other hand, if it is determined that there is a remaining message (Yes), the process jumps to step S43 and the subsequent processes are performed.

S49. When it is determined in step S45 that there is no response from the mobile terminal that should receive the message to be transmitted, it is determined whether the monitoring timer 25 has timed out. If it is determined that the monitoring timer 25 has not timed out (No), the process jumps to step S44 and the subsequent processes are performed.

S50. On the other hand, if it is determined in step S49 that the monitoring timer 25 has timed out (Yes
In s), the message to be transmitted is deleted from the message storage unit 22, and the process proceeds to step S48. According to the above processing, when the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the message stored by the message center is repeatedly transmitted. Therefore, even if the owner of the mobile terminal that should receive the message does not access the message center, or even if the owner of the sending mobile terminal has signed a message storage contract with the message center. Then, the owner of the mobile terminal that should receive the message can receive the message.

FIG. 6 is a diagram (No. 1) for explaining the automatic transfer of a message stored in the message center, and shows the case where the message stored in the message center is transferred autonomously. In FIG. 6, reference numeral 1 is a mobile terminal that originates a message, 2 is a mobile terminal that should receive the message transmitted by the mobile terminal 1, 3 is a mobile communication switching center that constitutes a mobile communication network, and 4 is a mobile terminal 2. A message center for temporarily storing the message transmitted by the mobile terminal 1 when the communication is not possible due to the absence of service or the power off.
Reference numeral 5 is a home location register that holds information about an area in which the mobile terminal is likely to be located, 6 is a mobile communication switching center that constitutes a mobile communication network, and 7 is a subordinate of the mobile communication switching center 6. This is a base station having territories having areas shown by A and B in FIG.

The procedure in the mobile communication network for autonomously transferring the message stored by the message center will be described below with reference to the parenthesized numbers in FIG. (1) The mobile terminal 1 issues a message addressed to the mobile terminal 2 to the mobile communication switching center 3. (2) The mobile communication switching center 3 inquires the location information of the mobile terminal 2 from the home location register 5 and acquires the location information.

(3) The mobile communication switching center 3 establishes a line with the mobile communication switching center 6 which controls the area in which the mobile terminal 2 may be located according to the location information. (4) The mobile communication switching center 6 instructs the base station 7 whose territory is the area where the mobile terminal 2 may be located to call the mobile terminal 2. (5) The base station 7 calls the mobile terminal 2 by calling all at once.

At this time, it is assumed that the mobile terminal 2 is not in a service area or is in a power-off state and is in a communication-disabled state. (6) The base station 7 notifies the mobile switching center 6 that the mobile terminal 2 cannot communicate, and (7) the mobile switching center 6 notifies the home location register 5 thereof.

(8) Home location register 5
Notifies the mobile communication switching center 3 to that effect. (9) The mobile communication switching center 3 transfers the message from the mobile terminal 1 so as to be stored in the message center 4. (10) The message center 4 tries to make a call to the mobile terminal 2 according to the processing shown in FIG.

At this time, if the mobile terminal 2 is communicable, the message stored in the message center 4 is transferred to the mobile terminal 2. On the other hand, if the mobile terminal 2 is not ready for communication, the message center 4 repeats the above processing, and even if the predetermined time has elapsed, the mobile terminal 2
If the message cannot be transferred to, delete the saved message.

In FIG. 6, the message center 4 directly transfers the message to the mobile terminal 2. However, if the message center 4 does not have the function, the message center 4 does not operate. The message may be transferred to the mobile terminal 2 via the mobile switching center 3 and the mobile switching center 6. FIG. 7 shows an automatic transfer process (2) of a message from the message center, which transfers the message from the message center when there is a location registration from the mobile terminal which should receive the stored message. Is. Hereinafter, the above processing will be described along the reference numerals of FIG. 7 while also referring to FIG.

S61. The transmission control unit 21 of FIG. 4 monitors whether or not a message to be stored has been received from the mobile terminal. If no message is received (No),
Continue the above monitoring. S62. If it is determined in step S61 that the message has been received (Yes), the received message and the number of the mobile terminal to which the message should arrive are stored in the message storage unit 22.

S63. It is monitored whether or not there is location registration from a mobile terminal that should receive the saved message (in the figure, this is the same as the “incoming terminal”). This is because if there is location registration from the mobile terminal that should receive the saved message, the home location register is notified of that fact, so that the location registration information can be received from the home location register. realizable.

If there is no location registration from the mobile terminal that should receive the stored message (No), the above monitoring is continued. S64. If there is a location registration from the mobile terminal that should receive the stored message (Yes), the message storage unit is searched. S65. It is determined whether or not there is a message addressed to the mobile terminal in the message storage unit.

This can be done by checking whether the telephone number or mail address of the mobile terminal is stored in the message storage unit. If it is determined that there is no message addressed to the mobile terminal (No), the process ends. S66. If it is determined in step S65 that there is a message addressed to the mobile terminal (Yes), the message saved to the mobile terminal is transmitted.

S67. The transmitted message is deleted from the message storage unit 22 and the process ends. By the above processing, when the mobile terminal that should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the mobile terminal that should receive the message newly registers its location. When the home location register notifies the message center to that effect when the message is stored and the message center stores the message addressed to the mobile terminal that should receive the message,
The message center sends the message to the receiving mobile terminal. That is, since the message center sends the message to the receiving side mobile terminal when the receiving side mobile terminal can reliably receive the message, the communication channel of the mobile communication network is not wasted.

Moreover, even if the owner of the mobile terminal that should receive the message does not have a contract with the message center and does not have the message box, the owner of the mobile terminal on the sending side does not have the message center. If you have a contract with, you can save and forward messages that could not be sent. FIG. 8 is a diagram (part 2) for explaining the automatic transfer of a message stored in the message center. The message stored in the message center is transferred when there is location registration from a mobile terminal that should receive the stored message. The case is shown.

Since the configuration of the mobile communication network shown in FIG. 8 is exactly the same as that shown in FIG. 6, the description of the configuration of the mobile communication network will be omitted and the numbers in parentheses in FIG. A procedure in the mobile communication network for autonomously transferring a message stored by the message center will be described. (1) The mobile terminal 1 issues a message addressed to the mobile terminal 2 to the mobile communication switching center 3.

(2) The mobile communication switching center 3 inquires the home location register 5 about the location information of the mobile terminal 2 and acquires the location information. (3) The mobile communication switching center 3 sets up a line with the mobile communication switching center 6 which controls the area where the mobile terminal 2 may be located according to the location information. (4) The mobile communication switching center 6 instructs the base station 7 whose territory is the area where the mobile terminal 2 may be located to call the mobile terminal 2.

(5) The base station 7 calls the mobile terminal 2 by calling all at once. At this time, it is assumed that the mobile terminal 2 is not in the service area or is in a power-off state and cannot communicate. (6) The base station 7 notifies the mobile switching center 6 that the mobile terminal 2 cannot communicate, and (7) the mobile switching center 6 notifies the home location register 5 thereof.

(8) Home location register 5
Notifies the mobile communication switching center 3 to that effect. (9) The mobile communication switching center 3 transfers the message from the mobile terminal 1 so as to be stored in the message center 4. After this, the message center 4 waits until there is location registration from the mobile terminal 2.

(10) The mobile terminal 2 returns to the communication area or turns on the power again to register the location. (11) The location registration information of the mobile terminal 2 is transmitted to the mobile communication switching center 6, and (12) it is further added to the home location register 5
Be transmitted to. (13) Although the message center 4 may be the main body or the home location register 5 may be the main body, the message center 4 acquires the location registration information of the mobile terminal 2.

(14) The message center 4 searches the message storage unit to see if the message addressed to the mobile terminal 2 is stored, and if there is a message addressed to the mobile terminal 2, sends it. Although not described in the explanation of the flow chart of the automatic transfer process in FIGS. 2, 3 and 5, when the stored message is transferred from the mobile terminal or the message center, It is possible to add a process in which the message is not transferred until a predetermined time has elapsed.

By adding such processing,
It is possible to avoid the result that the transfer is tried immediately when the radio wave condition is bad and the transfer cannot be completed in the end. (Supplementary note 1) When the radio wave condition is poor and the message cannot be transmitted, the mobile terminal which is trying to transmit the message temporarily stores the message so that the radio wave condition improves and the stored message can be transmitted. A method for automatically transferring a message in a mobile communication network, characterized in that the mobile terminal transmits the stored message when the message becomes full.

(Supplementary Note 2) When the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the message stored by the message center is repeatedly transmitted. An automatic message transfer method for mobile communication networks. (Supplementary Note 3) When the mobile terminal that should receive the message is unable to communicate, the message is temporarily stored in the message center in the mobile communication network, and the mobile terminal that should receive the message newly registers its location. Sometimes the Home Location Register notifies the Message Center to that effect, and if the Message Center stores a message addressed to a mobile terminal that should receive the message, the Message Center will An automatic message transfer method in a mobile communication network, characterized in that a message is transmitted to a mobile terminal on the receiving side.

(Supplementary Note 4) In the automatic message transfer method in the mobile communication network according to either the supplementary note 1 or the supplementary note 2, the time for repeating the transmission is limited. Automatic transfer method. (Supplementary note 5) In the automatic message transfer method in the mobile communication network according to any one of Supplementary note 1 or Supplementary note 2, a header message indicating that the message to be transferred is a message that is temporarily stored. A method for automatic message transfer in mobile communication networks, which is characterized by adding.

(Supplementary Note 6) In the automatic message transfer method in the mobile communication network according to either Supplementary Note 1 or Supplementary Note 2, the transmission of the message is started when a predetermined time has elapsed after the message was saved. Automatic message transfer method for mobile communication networks.

[0074]

As described above in detail, according to the present invention, a message to be transmitted is temporarily stored when either the calling terminal or the called terminal is in a communication-disabled state, and the call that cannot be communicated is made. It is possible to realize an automatic message transfer method in mobile communication capable of automatically transferring a stored message when a terminal or a call-in terminal becomes available for communication, and improve the convenience of the mobile communication network. be able to.

That is, according to the first invention, when the radio wave condition is poor and the message cannot be transmitted, the mobile terminal which is going to transmit the message temporarily stores the message and the radio wave condition is improved. When the mobile terminal can transmit the stored message, the mobile terminal transfers the stored message, so that the owner of the mobile terminal can transmit the stored message without being aware of the radio wave condition.

According to the second invention, when the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the message center stores it. Since the transmission of the message is repeatedly tried, even if the owner of the mobile terminal that should receive the message does not access the message center, the owner of the sending mobile terminal can send the message to the message center and the message center. As long as the storage contract is concluded, the owner of the mobile terminal that should receive the message can receive the message.

According to the third aspect of the invention, when the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in the message center in the mobile communication network, and the mobile station which should receive the message. When the home location register notifies the message center to that effect when the terminal newly registers the location, and the message center stores the message addressed to the mobile terminal that should receive the message. , The message center sends the message to the receiving mobile terminal. That is, since the message center sends the message to the receiving side mobile terminal when the receiving side mobile terminal can reliably receive the message, the communication channel of the mobile communication network is not wasted.

Further, according to the fourth aspect of the invention, since the time for repeating the transmission is limited, it is possible to prevent the transmission from being wastefully repeated and reduce the load on the mobile communication network. Further, according to the fifth invention, a header message indicating that the message is once stored and then transferred is added to the message to be transferred, so that the message is temporarily stored at the receiving side. It is possible to recognize that the message is a message to be transferred, and it is possible to avoid confusion especially when a conversation is once stored and transferred.

[Brief description of drawings]

FIG. 1 shows the configuration of a mobile terminal used in the present invention.

FIG. 2 is an automatic transfer process of a message from a mobile terminal.

FIG. 3 is a diagram illustrating automatic transfer of a message stored in a mobile terminal.

FIG. 4 shows the structure of a message center used in the present invention.

FIG. 5: Automatic transfer processing of messages from the message center (No. 1).

FIG. 6 is a diagram (1) explaining automatic transfer of a message stored in a message center.

FIG. 7: Automatic transfer processing of a message from the message center (2).

FIG. 8 is a diagram for explaining automatic transfer of a message stored in the message center (part 2)

FIG. 9 is data stored in the message storage unit.

FIG. 10 is transmission data.

FIG. 11 is a diagram illustrating a conventional receiving method of a message stored in a message center.

[Explanation of symbols]

1 mobile terminal 2 mobile terminals 3 Mobile Communications Switching Office 4 Message Center 5 Home Location Register 6 Mobile switching center 7 base stations 11 Radio wave condition monitoring unit 12 Transmission control unit 13 Message storage 14 Transmission memory 15 Transmitter / receiver 16 monitoring timer 21 Transmission control unit 22 Message storage 23 Transmission memory 24 Transmitter / receiver 25 monitoring timer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuya Jimbo             3-3-5 Ichibancho, Aoba-ku, Sendai City, Miyagi Prefecture               Fujitsu East Japan Communication System             Thames Co., Ltd. (72) Inventor Hiroaki Ishiguri             3-3-5 Ichibancho, Aoba-ku, Sendai City, Miyagi Prefecture               Fujitsu East Japan Communication System             Thames Co., Ltd. F term (reference) 5K015 AA10 AD01 AD05 AE05 GA02                       GA10                 5K024 AA02 AA41 AA72 BB05 BB07                       CC11 DD01 DD04 EE09 FF06                       GG01 GG03 GG10 GG12 GG13                 5K067 AA33 BB04 DD04 EE02 EE10                       GG01 HH23 KK13 KK15                 5K101 KK02 LL12 NN07 NN14 NN25                       PP06 RR14

Claims (5)

[Claims] 1. When the radio wave condition is poor and the message cannot be sent, the mobile terminal which is going to send the message can temporarily save the message and send the saved message when the radio wave condition improves. A method of automatically transferring a message in a mobile communication network, characterized in that the mobile terminal transmits the stored message when 2. When the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in a message center in the mobile communication network, and the transmission of the message stored by the message center is repeatedly tried. Automatic message transfer method for mobile communication networks. 3. When the mobile terminal which should receive the message cannot communicate, the message is temporarily stored in a message center in the mobile communication network, and the mobile terminal which should receive the message newly registers its location. When the home location register notifies the message center to that effect, and the message center stores a message addressed to a mobile terminal that should receive the message, the message center will An automatic message transfer method in a mobile communication network characterized by transmitting a message to a mobile terminal on the receiving side. 4. The automatic message transfer method in the mobile communication network according to claim 1 or 2, wherein a time limit for repeating transmission is limited. Automatic transfer method. 5. The automatic message transfer method in the mobile communication network according to claim 1, wherein the message to be transferred is a message that is temporarily stored and transferred. A message automatic transfer method in a mobile communication network characterized by adding a header message.