JP2731643B2 - Mobile voice mail transmission method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile voice mail transmission system, and more particularly to a mobile voice mail transmission system for automatically transmitting a voice mail from a radio base station to a mobile terminal on a control channel of a transmission radio wave. .

[0002]

2. Description of the Related Art A wireless service under a conventional mobile communication exchange is known.
The service area is divided into multiple areas, and each area has a radio base
In a mobile communication system in which a station is located , when a called mobile terminal is powered off or out of a service area, a caller is placed in a mailbox in a mobile communication exchange (hereinafter simply referred to as an exchange) body. The message was stored, and then when the mobile terminal subscriber predicted that the message was stored in the exchange, the mailbox number was dialed to retrieve the message. Also, due to the nature of mobile terminals, it is meaningless to keep supplying power to the terminal when the subscriber is away,
There was no terminal with an answering machine function.

[0003]

In this conventional mobile communication system, communication cannot be performed when the called mobile terminal is powered off or outside the service area (including the dead zone). I couldn't tell them if I wanted to tell them immediately. Even if the caller leaves a message in the mailbox in the exchange, the subscriber at the mobile terminal does not know whether or not there is voice mail, and this subscriber dials the mailbox number when voice mail is present The message wasn't immediately transmitted because I could only retrieve my voicemail. In addition, even if the answering machine function is added to the mobile terminal, there is a drawback that the function of the answering machine cannot be performed when the power is off or outside the service area.

[0004]

According to the present invention , a moving object is provided.
Divide the wireless service area under the communication switch into multiple areas
Mobile communication systems that place wireless base stations in each of these areas
In Temu, the mobile communication exchange prompting registration of message message to the calling party when the called mobile terminal is not responding
Means for requesting voice mail registration and the message
Voice mail registration means for registering with a voice mail device;
A location registration signal from the mobile terminal via a wireless base station;
Button to send voice mail transfer start signal when received
Email transfer start notifying means, and the voice mail device
Voice encoding the message message retrieved from
Mail encoding means, and the encoded voice mail message
Voicemail signaling hand for transmitting No. to the radio base station
And after the voice mail signal transfer is completed,
Send voice mail end signal to send voice mail end
Notifying means , wherein the radio base station includes the voice mail.
Signal by time division multiplexing with control signal on a control channel of the transmission radio wave transmission voice mail transmitted to the mobile terminal
Mobile voice mail transmission system, characterized in that it comprises a signal device is obtained, et al.

[0005] The mobile terminal communicates with the voice maker.
Received via the wireless base station after receiving the transfer start signal
The voicemail signal on the control channel
Voice mail separating means and the separated voice mail
Voice mail storage means for storing a voice signal;
Use of the mobile terminal after receiving a mail transfer end signal
Voicemail table that shows voicemail calls to the caller
Indicating means and the voice menu in response to a read instruction from the user.
From the voice mail signal read from the rule storage means.
Decoding means for decoding into an encoded audio signal ;
Audio output means for outputting a decoded audio signal
Mobile voice mail transmission system characterized by
It is .

[0006]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a mobile voice mail transmission system according to the present invention, FIG. 2 is a sequence diagram for explaining the operation in FIG. 1, and FIGS. 3 (a) and 3 (b) show the control in FIG. FIG. 3 is a diagram illustrating an example of a frame format of a control signal and a voice mail signal on a channel.

In this embodiment, when the mobile terminal of the call destination is turned off or out of the service area and there is no answer to the call, the caller temporarily stores the voice mail in the mailbox of the exchange. When the terminal is ready to receive a call, the voice mail is automatically transmitted to the mobile terminal via the control channel of the transmission radio wave from the wireless base station. That is, the exchange has an answering machine function. As shown in FIG. 3A, the control signal on the control channel includes bit synchronization and control signal type (voice mail transfer start, transfer end signal, etc.).
And word synchronization, word 1 of the same data repeated 5 times
5 form a frame, and the voice mail signal on the control channel has a bit synchronization, a signal type (voice mail signal), and a destination mobile terminal (MSS) identification as shown in FIG. One frame is formed by the signal and the audio signal.

Next, the block configuration of this embodiment will be described. As shown in FIG. 1, an exchange (hereinafter referred to as SWE) 1 is connected to a radio base station (hereinafter referred to as MBS) 2 via a data communication line (hereinafter referred to as DLN) 5, and MBS 2 is a mobile terminal via a control channel 6 for transmitting radio waves. (Hereinafter referred to as MSS) 3, which tunes to the control channel and monitors the signal. The SWE 1 includes an announcement trunk (hereinafter, ANT) 12 connected to a switch (hereinafter, SW) 11 that accommodates a calling subscriber (hereinafter, CLG) 4, a voice mail registration request signal receiving circuit (hereinafter, REC) 13, and a voice mail device (hereinafter, “REC”). A VM 14, an encoding device (hereinafter ENC) 15 connected to the VM 14, and a data link control device (hereinafter DLC) 16 connected to the MBS 2 via the DLN 5, and the MBS 3 stores voice mail. A memory (hereinafter MEM) 31, an incoming call indicator (hereinafter IND) 32,
A decoding circuit (hereinafter referred to as DEC) 33 and an audio generator (hereinafter referred to as V
GN) 34.

Next, the voice mail transfer procedure in the present embodiment will be described. When the SWE 1 receives a call request from the CLG 4, the SWE 1 calls the MSS 3 via the DLN 5 and the MBS 2 using a call signal on the control channel 6.
At this time, if the MSS 3 is turned off or out of the service area, the MSS 3 does not return a call response to the SWE 1. In SWE1, when the call response waiting timer times out, the call path is connected to ANT12 by SW1 and connected to REC13 to indicate that the MSS3 to be called is absent and that a message can be registered in the mailbox.
Announce to G4. Upon detecting the voice mail registration request signal from CLG4, SWE1 switches the call path to SW11.
To connect to the VM 14 to store the message from the CLG 4.

On the other hand, when the MSS 3 is powered on or moves into the service area, it sends a location registration signal on the control channel 6 to the SWE 1 via the MBS 2.
When the SWE 1 receives the location registration signal, the SWE 1 sends the voice mail transfer start signal (control signal) shown in FIG. 3A from the DLC 16 to the MSS via the DLN 5, MBS 2, and control channel 6.
3 and then take out the voice mail from the VM 14 of the mailbox, encode the voice signal by the ENC 15, and time-divide the encoded voice mail signal (voice signal) shown in FIG. Multiplex and MSS
3 is sent. The MSS 3 demultiplexes the audio signal and stores it in the MEM 31. After the transfer of all voice mails is completed, SWE1 sends a voice mail transfer end signal (control signal) shown in FIG. 3A to MSS3. Upon completion of this transfer, the message stored in the VM 14 is erased in the SWE1. The MSS 3 finishes storing all voice mails in the MEM 31 upon receipt of the voice mail transfer end signal, and simultaneously displays a visual or audible display on the IND 32 to display the MS.
The user of S3 is notified of the incoming voice mail.

[0011] Next, when the user of MSS3 to a read instruction of the voicemail MSS3, DEC 3 3 audio signal encoded by reading the voice mail from MEM31
And a voice (message) is generated from the VGN 34.

[0012]

As described above, according to the present invention, when the called mobile terminal is powered off or moved out of the service area, the message to the mobile terminal is temporarily stored in the exchange, and then the mobile terminal is stored. Since the message is immediately transferred to the mobile terminal through the control channel when the terminal becomes communicable, the message can be quickly transmitted to the other party. Also, by putting audio on the control channel,
This has the effect that voice mail can be transmitted without using the voice channel wastefully or controlling the voice channel.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a mobile voice mail transmission system according to the present invention.

FIG. 2 is a sequence diagram for explaining the operation in FIG.

FIGS. 3A and 3B are diagrams showing an example of a frame format of a control signal and a voice mail signal on a control channel in FIG.

[Explanation of symbols]

 Reference Signs List 1 exchange (SWE) 2 radio base station (MBS) 3 mobile terminal (MSS) 4 caller (CLG) 5 data communication line (DLN) 6 control channel 11 switch (SW) 12 announcement trunk (ANT) 13 voice Mail registration request signal receiving circuit (REC) 14 Voice mail device (VM) 15 Encoding device (ENC) 16 Data link control device (DLC) 31 Voice mail storage memory (MEM) 32 Incoming call indicator (IND) 33 Decoding circuit (DEC) 34 Voice Generator (VGN)

Claims (2)

(57) [Claims] 1. A wireless service provider under a mobile communication switching system.
The area is divided into multiple areas, and radio base stations are allocated to each area.
In mobile communication systems location, and voicemail registration request means the mobile communication exchange prompting registration of message message to the calling party when the called mobile terminal is not responding,
A voice register for registering the message in a voice mail device;
S-mail registration means and the mobile terminal via a radio base station
Voicemail when receiving location registration signal from
Voice mail transfer start notifying means for sending a start signal;
The message message retrieved from the voice mail device
Voice mail encoding means for encoding a message,
Send voice mail signals to the radio base station surbo
Means for transmitting an e-mail signal;
Send voice mail transfer end signal after sending is completed
And a voice mail transfer end notification unit, said radio base station comprises a voice mail sending means for sending to said mobile terminal by time division multiplexed with the control signal to the voice mail signals over a control channel of the transmission waves Characteristic mobile voice mail transmission system. 2. The mobile terminal transfers the voice mail.
A button for separating the voice mail signal on the control channel received via the radio base station after receiving a start signal.
Ismail separation means and this separated voicemail signal
Voice mail storage means for storing
After receiving the transfer end signal, the user of the mobile terminal
Voicemail incoming display means for displaying incoming incoming email
And the voice mail case according to the reading instruction of the user.
Encoding from the voice mail signal read from the storage means
And decoding means for decoding the audio signal, the decoding
Mobile voicemail transmission system according to claim 1, wherein Rukoto an audio output means for outputting the audio signal.