JPH0575535A - Incoming information report system - Google Patents

Abstract

PURPOSE:To improve the communication service quality by storing temporarily the incoming information which identifies an incoming call to the mobile station having no answer to the call corresponding to the incoming call and then transmitting the stored incoming information in response to the access received from a mobile station. CONSTITUTION:When no answer is received from a mobile station even though the mobile station is called via a radio circuit in reponse to the incoming call given to the mobile station, an incoming information storage means 11 stores the incoming information in accordance with the mobile station. When an access is received from the mobile station via the radio circuit, an incoming information report means 13 sends the incoming information stored in the means 11 to the mobile station. Therefore even the mobile station positioned out of its service area or the mobile station which could not have an answer owing to no application of a power supply can recognize the incoming information. As a result, the service quality is improved in a mobile communication system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call information notifying method for notifying a mobile station of information of an incoming call which the mobile station could not respond to in a mobile communication system.

[0002]

2. Description of the Related Art In a mobile communication system, a paging is carried out on the assumption that a destination mobile station stands by in a service area and the mobile station device is powered on.

FIG. 11 is a diagram showing a configuration example of a mobile communication network.
is there. In the figure, a mobile communication network 111 is a fixed telephone network 1.
12 and are mutually connected. In the mobile communication network 111,
Network transit switch (MTS) 113₁~ 113_nIs a predetermined net
They are connected to each other according to the configuration. Mobile network transit switch
(MTS) 113 ₁Is connected to the fixed telephone network 112,
And mobile switching center (MSC) 114₁Via the mobile station
Wireless base station (BS) 1 that sets the wireless line to access
15₁₁~ 115_1mConnected to. In addition, such movement
Mobile switching relays for body exchanges and wireless base stations
Machine 113₂~ 113_nIt will be placed underneath as well, so
Here, the first subscript added to the reference number and
The corresponding mobile network trunk exchange reference number "₁"
~ "_nThe same subscript number is added to indicate and the explanation is omitted.
I will omit it. Also, the mobile network relay switch 113₁~ 113_nOh
And mobile switching center 114₁~ 114_nIs the common line signal
Home location cash register via the successor station (STP) 116
Connected to the star (HLR) 117. Fixed telephone network 11
2, the subscriber terminal 118 is a local exchange (GC) 11
9. Relay switch (ZC) 120 and gateway switch (G
S) 121 is connected to the mobile communication network 111.

In the mobile communication system having such a configuration,
For example, when a subscriber of the subscriber terminal 118 sets a subscriber number of a predetermined mobile station and makes a call (FIG. 11 (1)), the fixed telephone network 112 responds to the subscriber number to the mobile network repeater exchange 1
13 ₁ to transfer the call (Fig. 11 (2)). When the mobile network relay switch 113 ₁ detects the incoming call, it sends a position information request signal to the home location register 117 via the common line signal relay station 116 (FIG. 11 (3)), and the home location register 117 sends the request signal. The subscriber data and the position information of the mobile station of the call destination are transmitted according to
1 (4)). The mobile network relay exchange 113 ₁ takes in the subscriber data and position information via the common line signal relay station 116, and the mobile exchange corresponding to the position information (here, for the sake of simplicity, the mobile exchange 114 ₁ The above-mentioned subscriber data is transferred to ((5) in FIG. 11). The mobile switching center 114 ₁ makes a general call to the mobile station indicated by the subscriber data via the radio base stations 115 _{11 to} 115 _1m (FIG. 11 (6)), but from the time when the call is made. If a response is not received from the destination mobile station within a predetermined time, the destination mobile station is not located in the service area or the power of the mobile station device is turned on to the subscriber terminal 118 that is the caller. It notifies that the call cannot be made because it is not available (Fig. 11 (7)).

[0005]

As described above, in the conventional mobile communication system, when no response is received to the paging to the destination mobile station, the above-mentioned voice notification is given to the caller. Then, the call processing of the call is terminated and no notification is given to the mobile station of the corresponding destination.

However, in mobile communication systems, in general,
The probability that the mobile station can answer the incoming call (reception completion rate) is about 35% based on the above-mentioned factors peculiar to the mobile communication, based on the operation result data. That is, even though many incoming calls have disappeared before the start of the call, it is not possible to notify the destination mobile station of what these incoming calls were, so compared to the fixed telephone network. The quality of service to the people was not sufficient.

Further, among the factors peculiar to the mobile communication described above,
Most of the cases where the power of the mobile station device is not turned on occur because the battery capacity of the mobile mobile station is not always sufficient or the mobile station subscriber leaves the vehicle. Is assumed. further,
Regarding the movement of mobile stations out of the service area, the size of the service area is determined according to the number of wireless base stations installed and other capital investment. The factors should be maximally relieved.

It is an object of the present invention to provide an incoming call information notification system that allows a subscriber of a mobile station to recognize an incoming call that the mobile station could not answer to a call.

[0009]

FIG. 1 is a block diagram showing the principle of the invention described in claim 1. In FIG. The present invention relates to a mobile communication system that provides a communication service by calling a mobile station via a wireless line in response to an incoming call to the mobile station. Incoming call information storage means 11 that monitors the response and stores the incoming call information that identifies the incoming call in association with the mobile station when the response is not obtained; and, depending on the access from the mobile station via a wireless line, Incoming call information storage means 1 in association with the mobile station that has made access to the mobile station.
Incoming information stored in No. 1 is sent via a wireless line. Incoming information notifying means 13 is provided.

FIG. 2 is a block diagram showing the principle of the invention described in claim 2. The present invention relates to a mobile communication system that provides a communication service by calling a mobile station via a wireless line in response to an incoming call to the mobile station. The incoming call information storage means 11 for monitoring the response and storing the incoming call information for identifying the incoming call in association with the mobile station when the response is not obtained, and the incoming call information stored in the incoming call information storage means 11 are predetermined. Incoming information notifying means 21 for sending to a mobile station via a wireless line at a timing is provided.

FIG. 3 is a block diagram showing the principle of the invention described in claim 3. The present invention relates to a mobile communication system that provides a communication service by calling a mobile station via a wireless line in response to an incoming call to the mobile station. In response to the incoming call information storage means 11 which monitors the response and stores the incoming call information for identifying the incoming call in association with the mobile station when the response is not obtained, and the special number incoming call requesting the notification of the incoming call information, And a voice response means 31 for converting the incoming call information stored in the incoming call information storage means 11 into a voice signal in association with the mobile station designated by the special incoming call and sending it to the caller of the special incoming call. It is characterized by

[0012]

According to the first aspect of the present invention, if the incoming call destination mobile station does not respond to the call via the wireless line, the incoming call information storage means 11 stores the incoming call information in association with the mobile station,
The incoming call information notifying means 13 associates the mobile station accessed through the wireless line with the mobile station and stores the incoming call information storage means 11 therein.
The incoming call information stored in is sent.

In other words, the mobile station is unable to answer an incoming call because it is located outside the service area or because the device is not powered on. Since the incoming call information can be obtained according to the access to the wireless line associated with the registration operation or the like, the subscriber of the mobile station can recognize the above-mentioned incoming call.

In the invention described in claim 2, the incoming call information storage means 11 stores the incoming call information in the same manner as in the invention described in claim 1, but the incoming call information is sent to the mobile station by the incoming call information notification means 21. Is performed at a predetermined timing.

That is, when the mobile station is restored to the state in which it can respond to the call, the mobile station receives the incoming call from the incoming call information notifying means 21 prior to the access to the wireless line performed in the same manner as in the first aspect of the invention. Since the information can be obtained, the subscriber of the mobile station can early recognize the incoming call that occurs while the call cannot be answered.

In the third aspect of the invention, the incoming call information storage means 11 stores the incoming call information in the same manner as in the first aspect of the invention, but the voice response means 31 stores the incoming call information among such incoming call information. The contents of the mobile station designated by the special number incoming call are converted into voice signals and sent to the caller of the special number incoming call.

That is, since the incoming call information is sent out as a voice signal, the subscriber of the mobile station described above is not limited to the mobile station that can directly receive the incoming call information sent out as a non-voice signal, but is also a fixed telephone network or other terminal device. Can be the originator of the above special number incoming call.

Therefore, a subscriber leaving the mobile station who cannot answer the call can recognize the incoming call to the mobile station.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. In this embodiment, the mobile communication network and the fixed telephone network have the same configuration as the conventional example shown in FIG. 11, but the subscriber data and the subscriber data are stored in the home location register. With location information,
It is provided with an area for holding incoming call information for identifying an incoming call for which no response to the call was obtained, and a means for registering / updating the incoming call information and notifying the mobile station of the incoming call information.

FIG. 4 is a diagram showing data held in the home location register. In the figure, the home location register 117 has a subscriber information table 4
1 and the incoming call information registration table 42 are arranged. The subscriber information table 41 has subscriber data 43, position information 44, and subscriber information 46 indicating an incoming call information address 45.
Is stored for each mobile station. Further, the incoming call information registration table 42 stores the number 47 of registered incoming call information in its head area, and for each incoming call from the same caller, the caller number 48, the call origination time 49 and the number of incoming calls. Incoming call information 51 indicating 50 is stored.

FIG. 5 is a diagram for explaining the operation of registering incoming call information. FIG. 6 is a flowchart showing the registration processing procedure of the home location register.

FIG. 7 is a diagram for explaining the operation of notifying the incoming call information. FIG. 8 is a flowchart showing a notification processing procedure of the home location register.

The operation of the embodiment corresponding to the first aspect of the invention will be described below with reference to FIGS. In the operation of registering the incoming call information, for the procedure to call all at once in response to an incoming call to the mobile station and to notify the caller by voice when the call is not answered, Since this is the same as the conventional example, here, the same numbers (= (1) to (7) to (7) to (7) to FIG.
(7)) is shown in FIG. 5 and its description is omitted.

When the mobile station does not respond to the paging, the mobile switching center 114 sends the above-mentioned voice notification (FIG. 5 (7)) and requests the home location register 117 to receive the incoming call information. Is sent (Fig. 5
(8)).

The home location register 117 refers to the subscriber information table 41 in response to such a request, acquires the subscriber information 46 of the mobile station which is the subject of the request, and includes it in the subscriber information 46. The incoming call information registration table 42 is referred to by using the incoming call information address 45 to be displayed as a pointer. In addition, the home location register 117
Searches the incoming call information registration table 42 and determines whether or not the same caller number as the caller number indicated in the above incoming call information registration request is registered (FIG. 6 (1)).

When the home location register 117 determines that the incoming call information of the same caller number is not registered in the incoming call information registration table 42, the contents of the incoming call information registration request are added to the incoming call information registration table 42. The number 47 of registered incoming call information is incremented (FIG. 6 (2)). Also, home location register 1
When it is determined that the incoming call information of the same caller number is registered in the incoming call information registration table 42, only the call origination time 49 and the number of incoming calls 50 of the incoming call information 51 corresponding to the caller number are received. Is updated in response to the incoming call information registration request (FIG. 6 (3)). When the home location register 117 completes such processing, the mobile switching center 1
A registration completion notice (a registration incompletion notice when the processing cannot be normally completed for some reason) is sent to 14 (FIG. 5 (9), FIG. 6 (4)).

When the destination mobile station of the incoming call corresponding to the incoming call information 51 sends out a position registration request (including the subscriber number of the mobile station), the mobile switching center 1 is sent.
14 receives the request via the wireless base station 115 (FIG. 7 (1)), and responds to the position registration request with the mobile switching center 1
Position information corresponding to No. 14 is added and sent to the home location register 117 (FIG. 7 (2)).

The home location register 117 updates the position information 44 on the subscriber information table 41 in response to the position registration request (FIG. 8 (1)), and receives the incoming call in the same manner as when the incoming call information is registered. By referring to the information registration table 42, it is determined whether or not the incoming call information is registered based on the number 47 of incoming call information on the table (FIG. 8 (2)). When the home location register 117 determines that the incoming call information is not registered in the incoming call information registration table 42, it sets the notification information indicating that there is no incoming call information as the location registration response (FIG. 8 (3)), and conversely registers the incoming call information. When it is determined that some incoming call information is registered in the table 42, the contents of the incoming call information registration table 42 are read and edited as a position registration response (FIG. 8 (4)), and the contents of the read incoming call information registration table 42 are further read. Is erased (FIG. 8 (5)). The home location register 117 sends the location registration response set through such processing to the mobile switching center 114 (FIGS. 7 (3) and 8 (6)).

When the mobile switching center 114 receives the location registration response, the mobile switching center 114 informs the mobile station via the predetermined common channel (control channel) set by the radio base station 115 of the incoming call information included in the location registration response or the incoming call information. A location registration acceptance including information indicating that there is no incoming call information is transmitted (FIG. 7 (4)).
The mobile station can receive such location registration acceptance and display the incoming call information included in the location registration acceptance (FIG. 7 (4)), so that the subscriber of the mobile station may find that the mobile station is moving out of the service area. It is possible to confirm an incoming call that has occurred while the mobile station device is not powered on.

In this embodiment, it is recognized that the incoming call information can be sent to the mobile station in response to the location registration request received from the mobile station. The method is not limited to the above method, and for example, a response from a mobile station according to an outgoing / incoming call (access to a wireless line) or the mobile station may be called at a predetermined cycle and recognized according to the response to the call. In particular, such a method
If the location information stored by the mobile station and the location information notified from the radio base station match, when applied to a mobile station that does not perform location registration operation, the transmission timing of incoming call information can be reliably obtained. be able to.

Further, in this embodiment, when the location registration request is received, the incoming call information is promptly sent to the mobile station. However, according to the present invention, the timing at which the incoming call information is actually sent to the mobile station and the mobile station The timing at which the incoming call information is displayed is not limited.For example, the incoming call information may be sent in a state where the mobile station is in a call or in the process of disconnecting a call that occurs in the mobile station, and the mobile station The received incoming call information may be retained and displayed based on a predetermined operation or control procedure.

Further, in this embodiment, the incoming call information is sent to the mobile station by a signal of the same format as the control signal via the control channel set by the radio base station 115.
The present invention can be applied regardless of such a radio channel control method or control signal format.

FIG. 9 is a diagram for explaining the operation of the embodiment corresponding to the invention described in claim 2. The operation of this embodiment will be described below with reference to FIG. Note that the characteristic configuration of the present invention is the same as the invention according to claim 1, except that the notification of the incoming call information to the mobile station is started under a condition different from the access from the mobile station via a wireless line. Is.

FIG. 5 shows the operation of registering incoming information when all mobile stations are called all together and no response is obtained.
Therefore, here, the same numbers (= (6) to (9)) corresponding to FIGS. 5 (6) to (9) are shown in FIG. 9 and the description thereof is omitted.

The home location register 117 terminates the processing for registering the incoming call information and sends a registration completion notification to the mobile switching center 114 (FIG. 9 (9)), and when a predetermined time elapses, the registered incoming call information is registered. (Here, for the sake of simplicity, there is only one registered incoming call information on the incoming call information registration table.) A compulsory notification command including the mobile exchange 114 is included.
(Fig. 9 (10)). In response to the command, the mobile switching center 114 simultaneously calls the destination mobile stations indicated by the incoming call information (FIG. 9 (11)), and receives a response to the call (FIG. 9 (12)). And its incoming call information to the destination mobile station (Fig. 9 (13)).

When the mobile switching center 114 sends the completion notification of the compulsory notification to the home location register 117 after transmitting the incoming call information as described above, for example, when the compulsory notification cannot be normally performed because the response is not received. For example, a non-completion notification of forced notification is sent to the home location register 117 (FIG. 9 (14)).

The home location register 117 again sends a compulsory notification command to the mobile switching center 114 when a predetermined time has elapsed from the time of receiving such an incompletion notification, and the above-described control procedure (Fig. 9 (10)
~ (14)) is repeated.

As described above, according to the present embodiment, the mobile station which has become able to respond to the general call is notified of the incoming call information before the location registration operation is performed and the mobile station is notified of the call. A mobile station that has exited the area and entered the same service area again can obtain incoming call information more quickly than the invention according to claim 1.

In this embodiment, the timing for sending or retransmitting the compulsory notification command is obtained by a predetermined timer process. However, the present invention is not limited to this timing and, for example, by the timer process. The time to wait until the compulsory notification command is sent can be appropriately determined according to the correspondence between the zone configuration of the mobile communication system and the moving route of the mobile station, and the like.

FIG. 10 is a diagram showing the structure of an embodiment corresponding to the invention described in claim 3. In FIG. In the figure, the configuration of the fixed telephone network is the same as that shown in FIG. 11, and therefore the same reference numerals are given to the respective components, and the description thereof is omitted here.

In the present embodiment, the characteristic configuration of the present invention is that the home location register 117 converts the incoming call information into a voice signal, the voice response device 101, and the fixed telephone network 11.
A call path switch 102 that forms a call path for an incoming call from the voice response apparatus 101 and the voice response apparatus 1
01 and the processing device 1 for controlling the communication path switch 102
It is a point equipped with 03.

The operation of this embodiment will be described below with reference to FIG. In the home location register 117,
The processing device 103 controls the communication path switch 102 at the time of initial setting to set a fixed communication link with the voice response device 101.

The terminal device 118 on the fixed telephone network 117 side is
Predetermined special number (for example, “030”), mobile communication network 111
Dial number including the identification number (= CD) of the mobile station and the number of the mobile station (= XX ... The fixed telephone network 117 establishes a line with the home location register 117 according to the dialed number (FIG. 10 (1)).

In the home location register 117,
The processing device 103 acquires the identification number CD of the mobile communication network 111 and the number XX ... X of the mobile station from which the incoming call information should be obtained via the gateway exchange (GS) 121 and the speech path switch 102 (see FIG. )) And based on the mobile station number, the incoming call information is obtained in the same manner as the procedure shown in FIGS. 8 (2) to 8 (5) (FIG. 10 (3)). Further, the processing device 103 controls the call path switch 102 to set a call path between the voice response device 101 and the gateway switch 121, and the content of the incoming call information is transmitted via the communication link described above. 1
01 to activate the voice response device 101 (FIG. 10).
(Four)). The voice response device 101 converts the incoming call information thus given into a voice signal, and the conversion result is sent to the terminal device 118 via the above-mentioned communication path (FIG. 10).
(Five)).

As described above, according to the present embodiment, the subscriber of the mobile station that cannot respond to the general call is not limited to the mobile station, but may be, for example, a terminal device connected to the fixed telephone network at home or office. Incoming call information can be obtained via.

In this embodiment, the incoming call information is registered in the database provided in the home location register 117. However, if the incoming call information can be registered once and the contents can be referred to again in the present invention, The arrangement of the storage means for registering the incoming call information is not particularly limited,
For example, the mobile network relay switch 113 and the mobile switch 114.
You may arrange | position every.

Further, in this embodiment, the speech path switch 10
Although the voice response device 101 and the fixed telephone network 112 are connected via 2 in the present invention, the present invention is not limited to such a configuration. For example, the voice response device corresponds to each incoming line from the fixed telephone network. Alternatively, the trunk may be dispersed and integrated.

Furthermore, in the present embodiment, the terminal device 118 collectively sets the information necessary for acquiring the incoming call information as a dial number when making a call, but the present invention is not limited to such a method. For example, by adopting the overdial method by DTMF, the home location register 117
It may be set after the call is received.

Further, in this embodiment, although the incoming call information is obtained by calling from the terminal device on the fixed telephone network side, the present invention does not limit the caller in particular, and, for example, responds to a simultaneous call. The present invention is also applicable to a case where a mobile station other than the mobile station that did not arrive receives a call to the home location register 117 via the fixed telephone network.

[0050]

As described above, according to the present invention, the incoming call information of the incoming call generated in the mobile station in a state where the mobile station cannot answer the call is temporarily stored, and the incoming call information is predetermined to the mobile communication system. Is notified to the terminal device connected via the mobile station or the fixed telephone network, which has left the above-mentioned state according to the access.

That is, the subscriber of the mobile station who cannot respond to the call is recognized based on the incoming call information which is surely notified of the incoming call which has been a complete call with a high probability due to the peculiarities of the mobile communication. Therefore, the quality of service of the mobile communication system is improved.

[Brief description of drawings]

FIG. 1 is a principle block diagram of the invention according to claim 1.

FIG. 2 is a principle block diagram of the invention described in claim 2.

FIG. 3 is a principle block diagram of the invention according to claim 3;

FIG. 4 is a diagram showing data held in a home location register.

FIG. 5 is a diagram illustrating a registration operation of incoming call information.

FIG. 6 is a flowchart showing a registration processing procedure of a home location register.

FIG. 7 is a diagram illustrating a notification operation of incoming call information.

FIG. 8 is a flowchart showing a notification processing procedure of a home location register.

FIG. 9 is a diagram for explaining the operation of an embodiment corresponding to the invention described in claim 2.

FIG. 10 is a diagram showing a configuration of an embodiment corresponding to the invention described in claim 3.

FIG. 11 is a diagram showing a configuration example of a mobile communication network.

[Explanation of symbols]

 11 incoming call information storage means 13, 21 incoming call information notification means 31 voice response means 41 subscriber information table 42 incoming call information registration table 43 subscriber data 44 location information 45 incoming call information address 46 subscriber information 47 number of incoming call information 48 caller number 49 Call origination time 50 Number of incoming calls 51 Incoming information 101 Voice response device 102 Speech path switch 103 Processing device 111 Mobile communication network 112 Fixed telephone network 113 Mobile network relay switch (MTS) 114 Mobile switch (MSC) 115 Radio base station ( BS) 116 common line signal relay station (STP) 117 home location register (HLR) 118 terminal equipment 119 local exchange (GC) 120 relay exchange (ZC) 121 gateway exchange (GS)

Claims (3)

[Claims] 1. A mobile communication system for providing a communication service by calling a mobile station via a wireless line according to an incoming call to the mobile station, wherein the calling is performed based on a control procedure of the wireless line according to the incoming call. Incoming call information storage means (1) for monitoring the response of the mobile station to the mobile station and storing incoming call information for identifying the incoming call when the response is not obtained in association with the mobile station.
1) and according to the access from the mobile station via the wireless line,
Incoming call information notifying means (1) for sending to the accessing mobile station the incoming call information stored in the incoming call information storage means (11) in association with the mobile station via the wireless line.
3) An incoming call information notification method characterized by comprising: 2. A mobile communication system for providing a communication service by calling a mobile station via a wireless line in response to an incoming call to the mobile station, wherein the calling is performed based on a control procedure of the wireless line according to the incoming call. Incoming call information storage means (1) for monitoring the response of the mobile station to the mobile station and storing incoming call information for identifying the incoming call when the response is not obtained in association with the mobile station.
1) and an incoming call information notification means (21) for sending the incoming call information stored in the incoming call information storage means (11) to the mobile station via the wireless line at a predetermined timing. Incoming call information notification method. 3. A mobile communication system for providing a communication service by calling a mobile station via a wireless line in response to an incoming call to the mobile station, wherein the calling is performed based on a control procedure of the wireless line according to the incoming call. Incoming call information storage means (1) for monitoring the response of the mobile station to the mobile station and storing incoming call information for identifying the incoming call when the response is not obtained in association with the mobile station.
1), and in response to the special number incoming call requesting the notification of the incoming information, the incoming information stored in the incoming information storage means (11) in association with the mobile station designated by the special incoming call is transmitted as a voice signal. And a voice response means (31) for converting to the caller and sending to the caller of the special number incoming call.