JPH05300245A - Incoming service control system in mobile object communication - Google Patents

Abstract

PURPOSE:To improve the service and the line effective utility with respect to the system controlling the incoming service with respect to call waiting. CONSTITUTION:When a call comes from a caller C to a mobile subscriber A during talking between a subscriber B and a mobile subscriber A allowing the call waiting service, an exchange 11 sends a call waiting tone representing the arrival of a 2nd incoming call to the mobile subscriber A. Thus, when the mobile subscriber A requests a message registration, a message from the caller C is stored in a voice storage equipment(VSE) 22 via exchanges 13, 11,21. After the end of talking the mobile subscriber A reproduces and listens to the message in the VSE 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call service control method in mobile communication, and more particularly to a method for controlling an incoming call service related to call waiting.

In a mobile communication system, even if a mobile subscriber allows two or more incoming services, it cannot receive two or more incoming services at the same time. For example, when a mobile subscriber allows a call transfer service and an answering service, only one service can be selected as a parameter of a signal currently sent to start a service, so that the call transfer service can be selected. When it is set to the start state, the answering service must be stopped, and when the answering service is set to the start state, the call transfer service must be stopped, and the network side does not simultaneously process two or more incoming services.

The same applies when the above-mentioned incoming call service is an incoming call transfer service and a call waiting service, and when the mobile subscriber has a second incoming call, the incoming call transfer service is in the start state and the specified condition is unconditional or Call forwarding is performed when busy, but in other cases, call waiting service is provided.

When the call waiting service is started and there is a second incoming call, the second incoming call is switched to the line unless the called party switches the call in progress and the second incoming call or the caller disconnects the call. Hold for a long time. Therefore, improvement of the call waiting service is desired for effective use of the line.

[0005]

2. Description of the Related Art FIG. 6 is a system configuration diagram of an example of a conventional system, and FIG. 7 is a sequence diagram for explaining the operation of an example of the conventional system. In FIG. 6, a call waiting (CW) service admissible mobile subscriber A is an anchor mobile telecommunication switch (A
It is assumed that the user is a subscriber of a mobile device that performs wireless communication with the MSC) 11 and is talking to the other subscriber B through the AMSC 11 and the exchange 12. The partner subscriber B is a subscriber of a mobile device or a fixed public network.

A procedure for receiving a second incoming call from the caller C during a call between the subscribers A and B will be described with reference to FIGS. 6 and 7. The caller C sends the mobile subscriber A to the gateway switch (GMSC) or the mobile communication switch (MSC) 13 corresponding to the calling anchor switch (calling AMSC).
When a call setup request SETUP for the mobile subscriber A is made (step 101 in FIG. 7), the exchange 13 determines the home location register (HLR) 14 from the subscriber number MSN of the mobile subscriber A.
Recognizes the request, accesses the HLR 14, and requests the subscriber data of the mobile subscriber A from the HLR 14 (step 1 in FIG. 7).
02).

[0007] As a result, the HLR 14 determines the subscriber number MS.
Using N as a key, the mobile station number MSI, service information, and LM information indicating whether or not the terminal is busy are indexed.
The routing number PRN and the position information LI of the mobile subscriber A are indexed from the SI and the incoming information is sent from the AMS.
It is returned to the exchange 13 which is C (step 10 in FIG. 7).
3).

The exchange 13 checks the above-mentioned incoming call information and notifies the caller C that the call setup process is in progress (CALL PROC) (step 104 in FIG. 7). Address notification to AMSC 11 (IA
M) is performed (step 105).

The AMSC 11 issues a call setup request to the mobile subscriber A (step 106 in FIG. 7), waits for a response ALERT from the mobile subscriber A, sends an address completion notification (ACM) to the exchange 13, and notifies the call progress. Notification (CPG) is sequentially performed (steps 107 to 109).

As a result, the exchange 13 notifies the caller C that the call is being made (step 11 in FIG. 7).
0). Further, the AMSC 11 analyzes the service information and the LM information, and when it judges that the LM information of the mobile subscriber A is CW service permitted during the busy, it sends a call waiting tone (CWT) to the mobile subscriber A (FIG. 7). 111), the guidance indicating that the call is being interrupted is sent to the caller C through the exchange 13 (step 112).

The mobile subscriber A knows that there is a second incoming call by listening to the CWT, and when he / she receives the second incoming call, he presses a predetermined button on the mobile unit to answer the signal CONN.
Is sent to the AMSC 11 (step 113 in FIG. 7).
The answer to the incoming call of the mobile subscriber A is AMSC1.
The caller C is notified from 1 via the exchange 13 (steps 114 and 115 in FIG. 7).

Subsequently, the line between the mobile subscriber A and the subscriber B, which has been in the call until then, is put on hold (step 116 in FIG. 7), and the line between the mobile subscriber A and the caller C is put on hold. The line becomes busy (step 117 in the same step), and the hold tone is sent to the subscriber B (step 118 in the same step).

Thereafter, when the mobile subscriber A wants to switch the call, he or she pushes a predetermined button on the mobile unit to enter the AMSC 11.
When the NFO signal is transmitted (step 119 in FIG. 7), the line between the mobile subscriber A and the caller C is put on hold (step 120), and the line between the mobile subscriber A and the subscriber B is put on hold. Will be in communication again (step 121),
The hold tone is sent to the caller C (at the same step 12).
2).

[0014]

However, in the above conventional method, the mobile subscriber A joins while the mobile subscriber A is notified by the call waiting tone (CWT) that there is a second incoming call. Unless the caller C disconnects the call during the call with the person B or the caller C disconnects the call, the line is blocked for a long time because the second call is kept on hold. This lowers the effective utilization rate of the line and deteriorates the serviceability by making both the caller C and the call waiting subscriber wait a long time.

The present invention has been made in view of the above points,
It is an object of the present invention to provide an incoming call service control system in mobile communication which solves the above problems by allowing a caller to record a message by a service-allowed subscriber by himself / herself.

[0016]

In order to achieve the above object, according to the present invention, while a mobile subscriber who allows a call waiting service is in a call with a first subscriber of a fixed network or a mobile communication network, the fixed network or the mobile network is used. When a second incoming call is made to the mobile subscriber from a second subscriber of the communication network, a call waiting tone is sent from the first exchange to the mobile subscriber to make a second incoming call to the mobile subscriber. When the mobile subscriber performs a call switching operation, the line between the mobile subscriber and the first subscriber is put on hold, and the line between the mobile subscriber and the second subscriber is suspended. In the incoming service control method in mobile communication in which the line of
A message recording request by the operation of the mobile subscriber receiving the call waiting tone is accepted, and the first exchange line-connected to the mobile subscriber deposits the message to the second subscriber according to the message recording request. A message to that effect is sent, and the first exchange is set to the voice storage device so that the message from the second subscriber is stored in the voice storage device. Play back.

[0017]

According to the present invention, when there is a second incoming call to the active mobile subscriber and the call waiting state is entered, the second incoming call is sent as a message to the voice storage device in the network at the request of the mobile subscriber. Can be deposited as The above-mentioned voice storage device includes a voice storage device for mobile subscribers and a voice storage device dedicated to a service connected to an exchange for connecting a line to the mobile subscriber with the first or second subscriber. ..

[0018]

1 and 2 are explanatory views of a control procedure of a first embodiment of an incoming service control system in mobile communication according to the present invention, and FIG. 3 is a sequence for explaining an operation of the first embodiment of the present invention system. It is a figure. 1 and 2, the same components as those in FIG. 6 are designated by the same reference numerals, and in FIG. 3, the same processing steps as those in FIG. 7 are designated by the same reference numerals and the description thereof will be omitted. In addition,
FIG. 2 shows only the part for explaining the control procedure in FIG.

In FIGS. 1 and 2, the exchange 21 is a CW.
Voice storage device (VSE) for service-allowed mobile subscriber A
An exchange to which 22 is connected, which is provided in the mobile communication network. In this embodiment, mobile subscriber A and first subscriber B
In a state in which the line between and is connected by the exchanges 11 and 12, and is in a call, the second subscriber (caller) C of the fixed network or mobile communication network to the mobile subscriber A as shown in FIG. When a call is made to H, as shown by
The LR 14 is accessed, and the exchange 13 sends a call notification to the exchange 11 which is line-connected to the mobile subscriber A based on the subscriber data from the HLR 14, whereby the call waiting tone (CWT) is moved from the exchange 11. It is similar to the conventional method in that it is sent to the subscriber A, but the following control procedure is different from the conventional method.

That is, when the mobile subscriber A learns that there is a second incoming call by listening to the above CWT, the second
To request message recording of an incoming call, use
Further, as shown in step 201 in FIG. 3, an INFO signal is sent to the exchange (AMSC) 11 by operating the mobile unit. Then, the exchange 11 sends the guidance for depositing the message to the caller C via the exchange 13 (step 202 in FIG. 3) and, as shown in FIG. 1, the voice storage device for the mobile subscriber A ( A path is set to the exchange 21 to which the VSE) 22 is connected (step 20 in FIG. 3).
3,204).

Subsequently, after connection processing required for recording is performed between the VSE 22 and the exchange 21 (step 205 in FIG. 3), the call progress signal CRG and the response signal ANM are transferred from the exchange 21 to the exchange 11. (Step 20 in FIG. 3
6, 207), and from switch 21 to switches 11 and 13
Then, a gainance prompting the sender C to start recording a message is sent (step 208).

Thereafter, the response signal AN is sent from the exchange 11.
M is sent to the exchange 13 (step 209 in FIG. 3),
After the exchange 13 notifies the caller C that the exchange 11 has responded (CONM) (at step 210, the same),
The message from sender C is exchanges 13, 11 and 21.
And recorded by VSE22 (step 211).
After the recording is completed, the line between the caller C and the exchange 21 is disconnected in a predetermined procedure (step 212).

Subsequently, as shown in FIG. 1 and at step 213 in FIG. 3, switch 11 registers with HLR 14 that there is a second incoming call message. Thereafter, after the call between the mobile subscriber A and the subscriber B is completed, the mobile subscriber A as shown in FIG. 2 and step 214 in FIG.
When the switch 11 requests the switch 11 to listen to the message, FIG.
To

[0024]

[Outer 1]

Then, as indicated by steps 215 and 216 in FIG. 3, the exchange 11 requests the HLR 14 for the calling information, and in response thereto, the HLR 14 returns the calling information to the switching device 11.

When the exchange 11 judges that this outgoing call information indicates that there is a second incoming message, the switching information shown in FIG.

[0027]

[Outside 2]

Then, as shown in steps 217 to 219 in FIG. 3, the routing is performed to the exchange 21 to which the VSE 22 is connected. After the VSE 22 is connected (step 220 in FIG. 3), the message reproduced from the VSE 22 is sent to the mobile subscriber A via the exchanges 21 and 11 (step 221). When the reproduction of the message is completed, the line between the mobile subscriber A and the VSE 22 is disconnected (step 222 in FIG. 3).

In this way, according to this embodiment, when the mobile subscriber A who is in a call receives the second incoming call from another subscriber C and the call waiting state is entered, the mobile subscriber A Since the second incoming call is stored as a message by the VSE 22 in the network in response to the request, it is possible to prevent unnecessary line occupation of the exchange 13, and also to prevent the caller C from waiting for a long time and to improve serviceability. Can be improved. Further, since the stored message of the VSE 22 can be reproduced according to the instruction of the mobile subscriber A, the reproduction message can be heard at an arbitrary time timing of the mobile subscriber A.

Next, the control procedure of the second embodiment of the present invention will be described with reference to the control procedure explanatory diagram of FIG. 4 and the operation explanatory sequence diagram of FIG. 4, those parts that are the same as those corresponding parts in FIG. 6 are designated by the same reference numerals, and, in FIG. 5, the same processing steps as those in FIG. 7 are designated by the same reference numerals, and a description thereof will be omitted.

In the second embodiment, a voice storage device (VSE) dedicated to message recording and reproduction is provided to each of a plurality of exchanges which may establish a line connection between the mobile subscriber A and the other subscriber.
, And uses the VSE 31 connected to the exchange 11 which has received the second incoming call to the mobile subscriber A as shown in FIG.

In FIG. 4, the procedure shown by to corresponds to the processing of steps 101 to 112 in FIG. 5, and the CWT indicating that there is a second incoming call to the mobile subscriber A is transmitted in the same manner as in the conventional system. Then, when the mobile subscriber A requests the message recording of the second incoming call, the mobile subscriber operates the mobile terminal A as shown in FIG.
INFO, as shown in step 301 in FIG.
The signal is sent to the exchange 11.

As a result, the exchange 11 performs the connection processing of the VSE 31 (step 302 in FIG. 5), and also sends the guidance to the caller C via the exchange 13 for depositing the message (step 303). As a result, when the sender C sends a message, this message is input to the VSE 31 through the exchanges 13 and 11.
It is recorded (stored) here (step 304).

When the message recording is completed, the line between the caller C and the VSE 31 is disconnected by the disconnection sequence (step 305). Then, when the call between the mobile subscriber A and the subscriber B ends, the exchange 11 immediately and automatically reproduces the message of the caller C stored in the VSE 31 and sends it to the mobile subscriber A. ..

In the present embodiment as well as the first embodiment, the serviceability of the call waiting service and the reduction of the line occupancy can be greatly reduced, and the messages accumulated in the VSE 31 are automatically reproduced, so that the movement is possible. The message request operation of the subscriber A can be made unnecessary, and the operability can be improved.

[0036]

As described above, according to the present invention, when the call waiting state is entered, the second incoming call to the mobile subscriber is stored as a message in the voice storage device in the network. And the deterioration of serviceability to both call waiting subscribers can be greatly reduced,
Further, since the holding time of the line can be shortened as compared with the conventional one, it is possible to improve the effective utilization rate of the line.

[Brief description of drawings]

FIG. 1 is an explanatory diagram (part 1) of a control procedure of a first embodiment of the system of the present invention.

FIG. 2 is a control procedure explanatory diagram (2) of the first embodiment of the system of the present invention.

FIG. 3 is a sequence diagram for explaining the operation of the first embodiment of the system of the present invention.

FIG. 4 is an explanatory diagram of a control procedure of a second embodiment of the method of the present invention.

FIG. 5 is a sequence diagram for explaining the operation of the second embodiment of the system of the present invention.

FIG. 6 is a system configuration diagram of an example of a conventional method.

FIG. 7 is a sequence diagram for explaining an operation of an example of a conventional method.

[Explanation of symbols]

 11, 12, 13, 21 Switch 14 Home location register (HLR) 22, 31 Voice storage device (VSE)

Claims (3)

[Claims] 1. A second subscriber of a fixed network or a mobile communication network while a mobile subscriber (A) which permits a call waiting service is in a call with a first subscriber (B) of the fixed network or the mobile communication network. When a second incoming call is made from (C) to the mobile subscriber (A), a call waiting tone is sent from the first exchange (11) to the mobile subscriber (A) to move the mobile subscriber (A). When the mobile subscriber (A) performs a call switching operation by notifying the subscriber (A) that there is the second incoming call, the mobile subscriber (A) and the first subscriber (B) are notified. The line between the mobile subscriber (A) and the second
Receiving a message recording request by the operation of the mobile subscriber (A) while receiving the call waiting tone in the incoming service control method in mobile communication in which the line with the subscriber (C) is busy. In accordance with the message recording request, the first exchange (11) line-connected to the mobile subscriber (A) sends guidance to the second subscriber (C) to deposit the message, and The path of the first exchange (11) is set to the voice storage device (22, 31), and the second subscriber (C) is set.
In mobile communication, characterized in that a message from the voice storage device (22, 31) is stored in the voice storage device (22, 31) and the voice storage device (22, 31) is reproduced after the call of the mobile subscriber (A) is completed. Incoming service control method. 2. The voice storage device (22, 31) is a second exchange (21) different from the first exchange (11).
The device (22) for the mobile subscriber (A) connected to the mobile subscriber (A), wherein a stored message is reproduced according to an instruction from the mobile subscriber (A). Incoming service control method. 3. The voice storage device (22, 31) is a device (31) connected to the first exchange (11), and automatically immediately after the call of the mobile subscriber (A) ends. 2. The incoming service control system in mobile communication according to claim 1, wherein the stored message is reproduced.