CN100581201C - Method and system for noticing speech mail box service - Google Patents

Abstract

This invention discloses a notifying method and a system for phone maibox service including: when receiving leave word information sent to called user terminal in VMS and before the called user takes back the leave word information, VMS sends a notifying message to LE carrying with number information of the called user terminal, after receiving the message of the VMS, LE converts the message to phone leave-word and transmits it to RAC, which applies a mode of empty protocol message to inform the called user terminal.

Description

A kind of Notification Method of voice mailbox service and system

Technical field

The present invention relates to the wireless communication technique field, especially the Notification Method and the system of voice mailbox service in wireless local loop (WLL, the WirelessLocal Loop) network.

Background technology

The WLL network is to utilize wireless technology to provide the terminal traffic service for fixed terminal equipment or regional mobile terminal device, has small investment, advantages such as capacity is big, the wide deployment of covering is flexible, networking speed is fast, accommodative ability of environment is strong, network configuration is simple, not being subject to natural calamity destroys, the WLL network can be used as replenishing of cable network, for the fixed network operator provides abundant and economic more networking scheme.There is GSM (Global Systems for Mobile commutations in common WLL system, global system for mobile communications) WLL system, CDMA (Code Division Multiple Access, the code division multiple access access) WLL system and PHS (Personal Handy-phone System, personal wireless phone system) WLL system etc.

WLL network of network structure is as shown in Figure 1: mainly comprise RAU (base station transceiver), RAC (Radio Access Controller), LE (local switch) and VMS (Voice Mail System Voice Mail System) etc.; RAU mainly is responsible for the transmitting-receiving of wireless signal, by eating dishes without rice or wine and terminal equipment carries out communication, RAC is responsible for controlling and managing the RAU Radio Resource that is attached thereto, LE is a fixed network core net switching equipment, main charging and the authentication etc. be responsible for, link to each other with RAC by the V5 interface, VMS is a Voice Mail System, mainly is responsible for the storage and the forwarding of voice messaging.

Voice mailbox service is the very important supplementary service of fixed network, and for the user, voice mailbox service also can be obtained voice calls information for the user when being inconvenient to answer calling, for telex network provides a great convenience.For operator, voice mailbox service can produce professional increment, brings income.

Voice mailbox service comprises three parts:

1) speech business Forwarded-to Voice Mailbox: the user arrives Voice Mailbox with Call Forwarding under certain conditions by changeing the class supplementary service before signatory, arrives Voice Mailbox etc. as Call Forwarding Unconditional to Voice Mailbox, divert when busy.

2) fetch voice messaging: the user need fetch voice information service VMR (Voice Message Retrieval) and refer to that the user can extract the message from Voice Mail System with the information retrieval of Voice Mailbox in suitable.The user fetches voice messaging two kinds of methods: the one, and the user dials the number of oneself; The 2nd, the user dials a condition code (FEATURE CODE).

3) MWN: in case in Voice Mailbox, preserve certain user's call information, but the user is again in time with the Voice Mailbox information retrieval, and then system need notify the user.The professional MWN of MWN (Message Waiting Notification) refers to that the notifications user has Voice Mailbox message waiting for reception.

Allow each mailbox owner that a kind of suitable advice method is set at present in the landline telephone switching network, the message notification mode has " notice beep-pager mode ", " notice assigned telephone number mode ", " switch send the recorded announcement mode ", " MWI mode ", " switch adopts FSK (frequency shift keying) or DTMF (dual-tone multifrequency) in-band signalling advice method " at present.

1. " notice beep-pager mode " is message notifying, and business experience is relatively good, but along with mobile network grows up, beep-pager is withdrawn from the market gradually;

2, " notice assigned telephone number mode " needs the switch initiation once speech called, and system resource is taken greatly, and business experience is also bad.

3, " switch send the recorded announcement mode " need carry out just can notifying the user behind a caller process access switch the user, and real-time is bad;

4, " MWI mode " needs terminal to have lighting function, and wll terminal does not have lighting function, uses restricted.

5, " switch adopts FSK or DTMF in-band signalling advice method " needs switch at first to set up a service link to terminal, adopt FSK or DTMF in-band signalling mode to give terminal then with message notification, but in the WLL system, because terminal and network using wireless communication mode, need handle through encoding and decoding by the message that air interface sends, these processing are lossy codings, can cause the information dropout of FSK or DTMF, can't accurately send corresponding information to terminal.

Because in the WLL system, what walk between LE and RAC is the V5 interface, the V5 interface does not define the related news and the cell of the MWN of Voice Mailbox at present, though so cause terminal has been common portable terminal, support short message or message notifying, but when LE has the tone information announcement information to arrive, can't notify the wireless side terminal equipment; Use " notice assigned telephone number mode " and " switch send the recorded announcement mode ", business experience is very bad.WLL user wishes to support the mode of the message notifying in the similar standard mobile network.

Summary of the invention

The embodiment of the invention provides a kind of Notification Method and system of voice mailbox service, makes the short message voice mail box notice mode of supporting similar mobile network in the WLL system, strengthens customer service and experiences.

The Notification Method of embodiment of the invention voice mailbox service is realized by the following technical solutions:

Receive the message information of called user terminal among the Voice Mail System VMS, before the called subscriber should leave a message information retrieval, VMS sent a notification message to local switch LE, carries the called user terminal number information in this notification message;

After LE receives the notification message of VMS, this notification message is converted to the tone information notification message, and sends to Radio Access Controller RAC;

RAC adopts air protocol message informing mode advise called subscriber terminal.

The reporting system of embodiment of the invention voice mailbox service is realized by the following technical solutions:

VMS is used to receive the message information of called user terminal, before the called subscriber should leave a message information retrieval, sends and carries the notification message of called user terminal number information to LE;

LE is converted to the tone information notification message with this notification message after being used to receive the notification message of VMS, and sends to RAC;

After RAC is used to receive the tone information notification message, adopt air protocol message informing mode advise called subscriber terminal.

The described method and system of the embodiment of the invention, VMS is by LE notice RAC tone information, RAC and then employing air protocol message informing mode informing user terminal have tone information, make WLL system voice message notification support the message notifying advice method of similar mobile network, improved user experience.

Description of drawings

Fig. 1 tradition WLL system configuration schematic diagram;

Fig. 2 is the Notification Method flow chart of an embodiment voice mailbox service of the present invention;

Fig. 3 is the Notification Method flow chart of another embodiment voice mailbox service of the present invention.

Embodiment

By expansion V5 interface, change the Voice Mailbox MWN mode of fixed network the MWN mode of mobile network in the embodiment of the invention, WLL user's voice mailbox service is experienced greatly improved.

Embodiment one

With reference to figure 2, the Notification Method of the described voice mailbox service of the embodiment of the invention comprises:

Step 101, receive the message information of called user terminal in the Voice Mailbox of WLL system, before the called subscriber will leave a message information retrieval, Voice Mail System will send a notification message to the core net switching equipment, carry the relevant information of called user terminal in this notification message;

In this step, in case preserve message information to certain called subscriber in VMS, before this called subscriber will leave a message information retrieval, VMS can send message informing LE; For example: in the WLL system, can use IAM (the Initial Address Message initial address message) message of ISDN User Part to communicate between VMS and the LE, VMS sends IAM message to LE, carry the called user terminal number in this IAM message, can also carry at least a in the following message in addition: VM (Voice Mailbox) number, the service number prefix, the message form number, information such as call subscriber terminal number, wherein, " VM number " is used to indicate the number of user speech mailbox, and " service number prefix " is used to identify this message is " tone information notice ".

After step 102, WLL system core net switching equipment receive the notification message of Voice Mail System, this notification message is converted to the tone information notification message, this tone information notification message is used to notify the user that tone information is arranged, and sends to Radio Access Controller;

In this step, LE is by expansion V5 interface, the IAM message that receives is changed, be encapsulated into and be used to notify the tone information notification message that the user has tone information and send to RAC, the message after the encapsulation can have polytype, can be existing type of message, it also can be newly-increased type of message, for example: by expanding existing Establish message, can increase the prompting of tone information notice in this Establish message newly, being used to indicate this Establish message is to be used for the tone information notice; In addition, carry the called user terminal number in this message, can also carry at least a in the following message in addition: information such as VM number, service number prefix, message form number, call subscriber terminal number.

After step 103, Radio Access Controller are received the tone information notification message of core net switching equipment transmission, the related content in the recording messages, and to core net switching equipment answer response message;

In this step, after RAC receives Establish message from LE, reply Establish Ack message and give LE, carry tone information Notification Validation indication in this Establish Ack message, confirm the tone information notification message of having received that LE sends; And RAC searches user record according to the called number in the Establish message that receives, relevant informations such as the message form number in the record Establish message, VM number;

Step 104, Radio Access Controller have tone information by air protocol message informing called user terminal, if called user terminal is unavailable, perhaps air protocol message issues failure, waits for that then called user terminal inserts again;

For example: under the situations such as called user terminal MS out of reach or shutdown, then RAC waits for that MS inserts again.

Step 105, Radio Access Controller receive the relevant Indication message that can send notice to called user terminal;

For example: called user terminal inserts the WLL network again, promptly registers again or access etc.

Step 106, Radio Access Controller start air protocol message transmission flow, and the advise called subscriber terminal has tone information to arrive;

In this step, RAC can adopt short message or MWN (Message Waiting Notification MWN) mode advise called subscriber terminal MS, as shown in Figure 2, then corresponding Flash With Information or the Feature Notification that eats dishes without rice or wine of MWN mode, wherein MS sends Flash With Information message when traffic channel state, and MS sends FeatureNotification message when idle condition; If employing short message way, then corresponding idle message are Paging ChannelSMS Delivery or Traffic Channel SMS Delivery, above-mentioned two message send when the MS idle condition or during traffic channel state respectively; Short message or MWN transmission flow all belong to air interface standard message transmission flow, repeat no more here; After notifying successfully, then RAC removes the relevant information of record in the step 103.

In the said method, step 104,105 belongs to optional step, that is, after the execution of step 103, directly execution in step 106, as notify success, then finish this tone information notification procedure; As notify unsuccessfully, and then return execution in step 104, promptly wait for the access again of called user terminal, carry out subsequent step then successively.

Embodiment two

With reference to figure 3, the Notification Method of the described voice mailbox service of the embodiment of the invention comprises:

Step 201～203 are with step 101～103.

Step 204, Radio Access Controller has tone information by air protocol message informing called user terminal, if called user terminal is unavailable, perhaps air protocol message issues failure, then Radio Access Controller is notified local switching equipment, successfully be not issued to called user terminal by local switching equipment record air protocol message, and wait for that called user terminal inserts again;

In this step, do not start shooting as failure of RAC advise called subscriber terminal MS or user, then, send status message informing LE by expansion V5 interface, this status message indication voice message notification failure, the verbal announcement message that is write down called user terminal by LE issues not successful information.

Step 205 is with step 105.

Step 206, Radio Access Controller are notified local switching equipment, and called user terminal can receive message notification;

In this step, after RAC receives the message of called user terminal MS re-accessing network, the V5 interface status message after LE sends expansion, this message indicating user terminal is access network, and notice LE called user terminal MS can receive message notification.

Step 207 after the core net switching equipment receives the notice of Radio Access Controller, encapsulates the tone information notification message again, and sends to Radio Access Controller;

In this step, after the status message that LE receives from RAC, resolve described status message and know that called user terminal can receive message notification, then encapsulation is used to notify the tone information notification message that the user has tone information and sends to RAC again, message after the encapsulation can have polytype, can be existing type of message, also can be newly-increased type of message, specifically can repeat no more here with reference to the encapsulation process in the step 103.

Step 208 is with step 203.

Step 209, Radio Access Controller start air protocol message transmission flow, and the advise called subscriber terminal has tone information to arrive;

In this step, RAC adopts short message or MWN (Message Waiting Notification MWN) mode advise called subscriber terminal MS, and detailed process can be with reference to step 106.

Present embodiment is compared with embodiment one, and the difference part is the realization difference that resends mechanism after message notification sends failure, and the mechanism that resends in the present embodiment cooperates RAC to finish by LE, by LE record verbal announcement result phase.

The invention process also discloses a kind of voice mailbox service reporting system, mainly comprises: VMS, LE, RAC, wherein:

VMS is used to receive the message information of called user terminal, before the called subscriber should leave a message information retrieval, sends and carries the notification message of called user terminal number information to LE;

LE is converted to the tone information notification message with this notification message after being used to receive the notification message of VMS, and sends to RAC;

After RAC is used to receive the tone information notification message, adopt air protocol message informing mode advise called subscriber terminal.

Wherein, described notification message can be IAM message, and described tone information notification message can be Establish message, and described air protocol message informing mode is short message way or MWN mode.

The described method and system of the embodiment of the invention, VMS is by LE notice RAC tone information, RAC and then employing air protocol message informing mode informing user terminal have tone information, make WLL system voice message notification support the message notifying advice method of similar mobile network, improved user experience.

But method extensive use of the present invention and various WLL system, as: CDMA WLL system, GSM WLL system, PHS WLL system etc.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1, a kind of Notification Method of voice mailbox service is characterized in that, comprising:

In a kind of wireless local loop wll system, receive the message information of called user terminal among the Voice Mail System VMS, before the called subscriber should leave a message information retrieval, VMS sent a notification message to local switch LE, carries the called user terminal number information in this notification message;

After LE receives the notification message of VMS, this notification message is converted to the tone information notification message, and sends to Radio Access Controller RAC;

RAC adopts short message way or MWN MWN mode advise called subscriber terminal.

2, the method for claim 1 is characterized in that: also carry at least a in the following message in the described notification message: Voice Mailbox VM number, service number prefix, message form number, call subscriber terminal number information.

3, the method for claim 1 is characterized in that: RAC receives the tone information notification message that LE sends, to LE echo reply message.

4, the method for claim 1, it is characterized in that, if called user terminal is unavailable, perhaps air protocol message issues failure, this method further comprises: RAC receives can be after called user terminal sends the relevant Indication message of notice, and RAC adopts air protocol message informing mode advise called subscriber terminal.

5, the method for claim 1, it is characterized in that, if called user terminal is unavailable, perhaps air protocol message issues failure, this method further comprises: RAC issues air protocol message the information notice LE of failure, RAC receives and can notify LE after called user terminal sends the relevant Indication message of notice, and LE encapsulates the tone information notification message again and gives RAC, and RAC adopts air interface standard message informing mode advise called subscriber terminal.

6, method as claimed in claim 5 is characterized in that: RAC is by sending the information notice LE that status message issues air protocol message to LE failure.

7, as any described method of claim of claim 1-6, it is characterized in that described notification message is initial address message IAM.

8, as any described method of claim of claim 1-6, it is characterized in that described tone information notification message is an Establish message.

9, a kind of WLL system, mainly comprise: VMS, LE, RAC is characterized in that:

VMS is used to receive the message information of called user terminal, before the called subscriber should leave a message information retrieval, sends and carries the notification message of called user terminal number information to LE;

LE is converted to the tone information notification message with this notification message after being used to receive the notification message of VMS, and sends to RAC;

After RAC is used to receive the tone information notification message, adopt short message way or MWN MWN mode advise called subscriber terminal.

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