CN100466829C - Method, system and MSC server and HLR of processing calling service - Google Patents

Method, system and MSC server and HLR of processing calling service Download PDF

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Publication number
CN100466829C
CN100466829C CNB200610170445XA CN200610170445A CN100466829C CN 100466829 C CN100466829 C CN 100466829C CN B200610170445X A CNB200610170445X A CN B200610170445XA CN 200610170445 A CN200610170445 A CN 200610170445A CN 100466829 C CN100466829 C CN 100466829C
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Prior art keywords
call
module
call service
service
receiving
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CN101001466A (en
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田文罡
赵坤
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNB200610170445XA priority Critical patent/CN100466829C/en
Publication of CN101001466A publication Critical patent/CN101001466A/en
Priority to PCT/CN2007/071390 priority patent/WO2008083604A1/en
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Abstract

This invention provides a method, a system and a MSC server and a HLR for processing call service, which registers times of call service carried out by a same signed user, in which, each time there is a call service, the recording times of the current call service will be added by 1, and each time the call service is released, the times of the current call service will be reduced by 1, at the same time, a top limit for limiting times of the call of a signed user is set in advance, when the signed user calls, it judges if the current recording time is smaller than the preset top limit, if not, the call will won't be done, if so, the user is allowed to call.

Description

Method, system for processing call service, MSC server and HLR
Technical Field
The present invention relates to a call technology, and more particularly, to a method and system for processing a call service, and a Mobile Switching Center (MSC) server and a Home Location Register (HLR).
Background
With the continuous development of the communication industry and the continuous increase of user requirements, more and more services appear, wherein Call forwarding and Call Transfer (CT) are two more common new services.
The call forwarding service user needs to register the preset relevant forwarding information and upload the set relevant forwarding information to the network. Wherein, the forwarding information comprises: call forwarding conditions and call forwarding numbers. The call forwarding is divided into an early call forwarding mode and a late call forwarding mode. Wherein, the early call forwarding generally comprises unconditional forwarding and interoffice busy forwarding; late call forwarding typically includes intra-office forwarding and no-answer forwarding. The CT service does not need the user to register in advance, and only the service authority of the CT is opened for the user. In this document, the user who has been registered in advance in the call forwarding service and the user who has the CT service authority in the CT service are collectively referred to as a subscriber.
When user A calls user B, if user B is registered with the forwarding service and the call is forwarded to user C after the forwarding condition is satisfied, the call of user A can be forwarded to user C, so as to establish the connection between user A and user C.
If user A has the authority of CT service and the call is transferred to user C, then after user A calls user B, when user A dials user C again, the call which has been established is transferred to third party user C, at this time, user A can hang up, and the connection is established between user B and user C.
In the current call service, because the number of call services simultaneously performed by subscribers is not limited, some influence may be caused to the benefit of the operator, for example:
1) suppose that user B is a subscriber to a registered call forwarding service, the number of user C is an access code to a public number such as the Internet, and user B has activated unconditional forwarding to user C. At this time, if the user A calls the user B, the Internet can be accessed through call forwarding; if users a1, a2, A3 call user B, users a1, a2, A3 may also access the Internet by call forwarding. If the users a1 a2 and A3 are illegal users, the user B also pays internet fees to the users a1, a2 and A3, so that a lot of fees are generated in a short time, and the benefits of the operator are affected if the user B does not honor the fees.
2) Assuming that the user B is a subscriber registered with the call forwarding service, when the user A calls the user B, if the user B registers and forwards to the user C, the user A establishes connection with the user C, and the connection between the user A and the user B and between the user B and the user C is not established. Thus, if the user B opens the forwarding service and registers forwarding to a plurality of users Cn, connections between a plurality of pairs of users An and the users Cn can be established without limit, and relatively large telephone charges are generated in a short time, and if the telephone charges cannot be redeemed, the benefits of operators are influenced.
3) Assuming that the user A has the authority of CT service, when the user A calls the user B, the user A transfers the established connection to the user C, so that the user B can establish the connection with the user C, and the user A can transfer the call of different users Bn to different users Cn in the same way, thereby establishing a plurality of pairs of connections from Bn to Cn without limitation, generating relatively large telephone charges in a short time, and influencing the benefits of operators if the telephone charges cannot be honored.
It can be seen from the existing method for processing call service that if a subscriber has signed a call service but the number of times of the call service of the subscriber is not limited, the subscriber can arbitrarily establish a plurality of pairs of connections, and generate a large telephone charge in a short time, and once the telephone charge cannot be redeemed, the benefit of an operator will be affected.
Disclosure of Invention
In view of the above, the main objective of the embodiments of the present invention is to provide a method for processing a call service, which restricts subscribers of the call service from simultaneously establishing a large number of connections in a short time.
A second object of the embodiments of the present invention is to provide an MSC server, which restricts subscribers to a call service from simultaneously establishing a large number of connections in a short time.
A third object of the embodiments of the present invention is to provide an HLR that restricts subscribers to a call service from simultaneously establishing a large number of connections in a short time.
A fourth object of the embodiments of the present invention is to provide a system for processing a call service, which restricts subscribers to the call service from simultaneously establishing a large number of connections in a short time.
In order to achieve the first object, an embodiment of the present invention provides a method for processing a call service, where an upper limit value of a number of times for which the call service is allowed is preset; the method further comprises the following steps:
receiving call service data, and when the recording times of the current call service of the subscriber are less than the upper limit value of the allowable call service times, performing call connection processing, and increasing the recording times of the current call service of the subscriber;
and when the recording times of the current call service of the subscriber are not less than the upper limit value of the allowable call service times, rejecting the call service processing. .
In order to achieve the second object, an embodiment of the present invention provides an MSC server, which includes a setting module, a determining module, a counting module, and a calling module;
the setting module is used for setting the upper limit value of the times of the call service allowed by the subscriber and sending the upper limit value to the judging module;
the judging module is used for respectively receiving the upper limit value of the number of times of the allowed call service from the setting module and the recording number of times of the current call service of the subscriber from the counting module, comparing the upper limit value of the number of times of the allowed call service with the recording number of times of the current call service of the subscriber from the counting module after receiving the trigger notification sent by the call module, judging whether the recording number of times of the current call service of the subscriber is smaller than the upper limit value of the number of times of the allowed call service, if not, sending a refusal notification to the call module;
the counting module adds 1 to the recording times after receiving the recording notice sent by the judging module and sends the recording times to the judging module;
the calling module sends a routing information request message after receiving a calling request; after receiving the call service data, sending a trigger notification to a judgment module; and after receiving the call notification sent by the judging module, the current call service is dismantled, and after receiving the call notification sent by the judging module, the current call service is carried out according to the received call service data.
In order to achieve the third object, an embodiment of the present invention further provides an HLR, where the HLR includes: the device comprises a setting module, a judging module, a counting module and a sending and receiving module;
the setting module is used for setting the upper limit value of the times of the allowed call service of the subscriber and sending the upper limit value to the judging module;
the judging module is used for respectively receiving the upper limit value of the allowed calling service times from the setting module and the recording times of the current calling service from the counting module, comparing the allowed calling service times and the recording times of the current calling service from the counting module after receiving the trigger notification of the sending and receiving module, judging whether the recording times of the current calling service of the subscriber is smaller than the upper limit value of the calling service times or not, and if not, sending a negative notification to the sending and receiving module; if yes, sending a confirmation notice to the sending and receiving module, and sending a record notice to the counting module;
the counting module is used for adding 1 to the recording times after receiving the recording notice sent by the judging module; and sending the recording times to a judging module;
the sending and receiving module sends triggering notification to the judging module after receiving the routing request information; after receiving a negative notification sent by the judging module, sending a negative reason value; and after receiving the confirmation notification sent by the judging module, sending the call service data.
In order to achieve the fourth object, an embodiment of the present invention provides a system for processing a call service, where the system includes: MSC server, and HLR;
MSC server, setting up upper limit value of calling service times, after receiving calling request, sending route information request to HLR; after receiving the forwarding data sent by the HLR, judging whether the recording times of the current call service of the subscriber is smaller than the upper limit value of the allowable call service times, if not, removing the current call service; if yes, the current call service is carried out according to the forwarding data, and the recording times is added by 1; when the call service is finished, subtracting 1 from the recording times;
and the HLR sends forwarding data to the MSC server after receiving the routing information request sent by the MSC server.
In order to achieve the fourth object, an embodiment of the present invention further provides a system for processing a call service, where the system includes: MSC server, and HLR;
after receiving the call request, the MSC server sends a routing information request to the HLR; after forwarding data sent by an HLR is received, current calling service is carried out according to the forwarding data; when a negative reason value sent by an HLR is received, the current call is removed;
HLR, setting up the upper limit value of the calling service times; after receiving a routing information request sent by an MSC (mobile switching center) server, judging whether the recording times of the current call service of a subscriber is smaller than the upper limit value of the allowable call service times, if not, sending a negative reason value to the MSC server; if yes, forwarding data is sent to the MSC server, and the number of records is added with 1.
It can be seen from the above technical solutions that, in the embodiments of the present invention, by limiting the number of times of the ongoing call service initiated by the same subscriber, the user is prevented from simultaneously establishing a large number of connections to multiple users in a short time, thereby reducing the influence on the benefits of the operator.
Drawings
Fig. 1.a is a schematic structural diagram of an MSC server according to an embodiment of the present invention;
fig. 1.b is a schematic diagram of an HLR structure according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for processing a call service according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for limiting the number of times of call services in an early call forwarding service according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for limiting the number of times of call services in a late call forwarding service according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for limiting the number of times of call services in a CT service according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for limiting the number of call services in a call forwarding service on an HLR according to an embodiment of the present invention;
fig. 7 a is a structural diagram of a system for processing a call service according to an embodiment of the present invention;
fig. 7 b is a structural diagram of another system for processing a call service according to an embodiment of the present invention.
Detailed Description
The main idea of the embodiment of the invention is as follows: presetting an upper limit value of the number of times of the allowed call service; and receiving call service data, performing call processing when the recording times of the current call service of the subscriber are less than the upper limit value of the call service times, and changing the recording times.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1.a is a schematic structural diagram of an MSC server for processing call services. As shown in fig. 1, the apparatus mainly comprises a setting module 101, a determining module 102, a counting module 103, and a calling module 104.
The setting module 101: and setting an upper limit value of the number of times of the allowed call service of the subscriber, and sending the upper limit value to the judging module 102.
The upper limit value of the allowed call times is the call times of the call services that one subscriber can access simultaneously, and the upper limit value of the call services times is generally set by an operator according to actual needs.
The judging module 102: respectively receiving the upper limit value of the allowed call service times from the setting module 101 and the recording times of the current call service from the counting module 103, comparing the two after receiving the trigger notification sent by the call module 104, judging whether the current call service times of the subscriber is less than the upper limit value of the call service times, and if not, sending a rejection notification to the call module 104; if yes, a call notification is sent to the call module 104, and a record notification is sent to the counting module 103.
The counting module 103: after receiving the recording notification sent by the judging module 102, adding 1 to the recording times; and sends the number of records to the decision block 102.
The calling module 104: after receiving the call request, sending a routing information request message; after receiving the call service data, sending a trigger notification to the judgment module 102; after receiving the rejection notification sent by the judging module 102, removing the current call service; after receiving the call notification sent by the determining module 102, the current call service is performed according to the received call service data.
The call request is typically sent by the user as a called Base Station Controller (BSC) to the MSC server.
The received call service data refers to: if the call forwarding service is performed, the call module 104 may receive data such as a forwarding number and location information sent by the HLR; if a CT service is in progress, the calling module 104 may receive the subscriber number to be ported to.
Further, when releasing a call service, the call module 104 sends a release notification to the determination module 102;
the judging module 102 sends a decrement notification to the counting module 103 after receiving the release notification sent by the calling module 104;
the counting module 103 subtracts 1 from the recorded times after receiving the subtraction notification from the judging module.
As shown in fig. 1.b, the HLR provided in the embodiment of the present invention is described in detail below, and includes: a setting module 101, a judging module 102, a counting module 103, a sending and receiving module 105, and a timing module 106.
The setting module 101 sets an upper limit value of the number of times of the subscriber allowed to call the service, and sends the upper limit value to the judging module 102.
The judging module 102 is configured to receive the upper limit of the allowed call service times from the setting module 101 and the recording times of the current call service from the counting module 103, compare the two after receiving the trigger notification of the sending and receiving module 105, judge the recording times of the current call service of the subscriber, compare the two, judge whether the current call service times of the subscriber is less than the upper limit of the call service times, and send a negative notification to the sending and receiving module 105 if the current call service times of the subscriber is less than the upper limit of the call service times; if so, an acknowledgement notification is sent to the transmit receive module 105 and a record notification is sent to the count module 103.
The counting module 103 adds 1 to the recording times after receiving the recording notification sent by the judging module 102; and sends the number of records to the decision block 102.
The sending and receiving module 105 sends a trigger notification to the judging module 102 after receiving the routing request information; after receiving the negative notification sent by the judging module 102, sending a negative reason value; after receiving the confirmation notification sent by the determining module 102, the call service data is sent.
The negative cause value may be sent to the MSC server, and the MSC server removes the call after receiving the negative cause value.
The call service data can be sent to the MSC server, and the MSC server is used for performing the call service after receiving the forwarding data. The call service data is call forwarding service data.
The negative cause value and the call service data can be sent out through a routing information confirmation message.
The timing module 106 is used for setting a timing time limit, which can be implemented by setting a timer. When the timing time is up, sending a zero clearing notice to the counting module 103;
after receiving the zero clearing notification, the counting module 103 clears the recording number.
The timing module 106 is configured to solve the problem that when the user forwards the call and releases the call, no flow is notified to the HLR, and the number of times of call forwarding records is reduced by 1.
Fig. 2 is a flow chart of a method of handling call traffic. As shown in fig. 2, the method of the embodiment of the present invention includes the steps of:
step 201: an upper limit value of the number of allowed call services is preset.
The upper limit value of the allowed call service times is the call times of the call services which can be accessed by one subscriber at the same time. The upper limit value of the call service times is generally set by an operator according to actual needs.
Step 202: receiving related call service data, judging whether the recording times of the current call service of the subscriber is less than the upper limit value of the call service times, if not, executing step 203; if so, step 204 is performed.
Receiving related call service data means that if the call forwarding service is performed, the MSC server receives data such as forwarding numbers and position information sent by the HLR; if the CT service is performed, the MSC server receives a subscriber number to be transferred to.
Step 203: and rejecting the call of the call service.
In this step, the method for rejecting the call of the call service is as follows: after MSC server sends out notification that the calling service times is out of limit to base station controller, MSC server removes call.
Step 204: and carrying out call processing of the call service and changing the recording times.
Here, it may be set that the number of times of recording is increased by 1 for every increase of one call service.
Still further, the method further comprises: when a call service is released, the number of times of recording in the counting module is decremented by 1.
The above process can be completed by the MSC server and the HLR, respectively. When the MSC server finishes the method of the present invention, the MSC server can be used for limiting the times of calling service in call forwarding or call forwarding service; when the HLR completes the method of the invention, the HLR can be used for limiting the times of the call service in the call forwarding service.
In order to make the above method flow more clear, the following exemplifies the flow of the method for different services.
The specific method for completing the method through the MSC server is described by taking an unconditional forward conversion example in the early call forwarding, and assuming that a user A calls a user B, the user B is a called subscriber, and the user B forwards the call to a user C. Fig. 3 is a flowchart of a method for limiting the number of times of call services in the early call forwarding service, as shown in fig. 3, the MSC server 1 is an MSC server of a called subscriber B; the MSC server 2 is the MSC server of the user C of the forwarding number provided by the called subscriber, and the specific implementation comprises the following steps:
step 301: the MSC server 1 sets in advance an upper limit value of the number of allowed call services.
The step is that the MSC server of the called user presets the upper limit value of the allowed call service times of the call forwarding allowed by the user at the same time, and the upper limit value of the allowed call service times of the call forwarding is generally determined by an operator according to the actual requirement.
This step can be done by the setup module 101 in the MSC server.
Step 302: the BSC sends a call request to the MSC server 1.
When user A calls user B, BSC sends call request to MSC server of called user B, and MSC will give BSC a response.
Step 303: the MSC server 1 transmits a routing information request message to the HLR.
In this step, the MSC server 1 obtains the location information of the called subscriber B from the HLR through the routing information confirmation message.
The receiving of the call request and the sending of the routing information request message in steps 302 and 303 may be performed by the call module 104 in the MSC server.
Step 304: the HLR determines whether the called subscriber signs a contract and meets the condition for triggering forwarding, and if the called subscriber B is a signed subscriber and meets the condition for triggering forwarding, the HLR returns forwarding data to the MSC server 1 through the routing information acknowledgment message.
In this step, the HLR will return the forwarding data only when the called subscriber is a subscriber and the condition of triggering forwarding is satisfied.
The triggering forwarding condition is a forwarding condition pre-registered by the called user, for example: if the user registers unconditional forwarding in advance, the forwarding condition is triggered as long as a call is made to a signed user, and the call forwarding is directly carried out; if the user registers the busy call in advance, when the signed user receives the call, the busy call can not be connected, the forwarding condition is triggered, and the call forwarding is carried out.
The step of receiving the forwarded data may be completed by the call module 104 in the MSC server.
Step 305: the MSC server 1 judges whether the recording times of the current call service forwarded by the called user is less than the preset upper limit value of the times of allowing the call service; if not, go to step 306; if so, step 308 is performed.
This step may be performed by the decision block 102 in the MSC server.
Step 306: the MSC server 1 sends a forwarding number overrun notification to the BSC.
Generally, in this step, the MSC server 1 sends the forwarding number overrun notification to the calling subscriber in a manner of sending a forwarding number overrun notification tone.
Step 307: the MSC server 1 removes the call from the BSC, and ends the procedure.
Steps 306 and 307 may be performed by the call module 104 in the MSC server.
Step 308: the MSC server 1 makes forward shifting call and sends the call to the MSC server 2; and the MSC server 1 adds 1 to the number of forwarding records of the called subscriber.
Further, after releasing an ongoing forwarded call, the MSC server 1 decrements the number of forwarded records of the called subscriber by 1.
In this step, the forwarding call can be completed by the call module 104 in the MSC server; adding 1 or subtracting 1 to the number of records may be done by a counting module 103 in the MSC server.
The following describes a specific procedure for completing the method by the MSC server by taking the example of the call before late call transition. Suppose user a calls user B, who is a called subscriber, and user B forwards the call to user C. Fig. 4 is a flowchart of a method for limiting the number of times of call services in the late call forwarding service, as shown in fig. 4, the MSC server 1 is an MSC server of a called subscriber B; the MSC server 2 is the MSC server of the user C of the forwarded-to number provided by the called subscriber. The specific implementation comprises the following steps:
step 401: the MSC server 1 sets in advance an upper limit value of the number of allowed call services.
The step is that the MSC server of the called user is preset with the upper limit value of the number of call forwarding allowed by the user at the same time, and the upper limit value of the number of call forwarding allowed is generally determined by an operator according to actual needs.
Step 402: the BSC sends a call request to the MSC server 1.
Step 403: the MSC server 1 transmits a routing information request message to the HLR.
In the step, the MSC server 1 sends the routing information request message to the HLR to obtain the position information of the called user B.
Step 404: and the HLR returns the routing information of the called user position through the routing information confirmation message.
In this step, the returned routing information confirmation message only contains the routing information of the called user position, but does not contain the forwarding data.
Step 405: the MSC server 1 performs call connection. If the called user can not be connected, go to step 406; if the called party is connected, the user A and the called party B directly establish a call, and the process is ended.
Step 406: the MSC server 1 determines whether the user has signed a subscription to the forwarding information. If so, go to step 407; if not, step 411 is performed.
The step of judging whether the user signs the subscription to the forwarding information is to judge whether the called user registers the call forwarding service and the forwarding data in advance. The forwarding data may be a forwarding number.
Step 407: the MSC server 1 sends a forwarding information request message to the HLR, and obtains the forwarding data of the called user from the HLR.
Step 408: the HLR returns the forwarding data of the called user to the MSC server 1 through the forwarding information confirmation message.
Step 409: the MSC server judges whether the recording times of the current call service forwarded by the called user is less than the preset upper limit value of the allowed call service times. If not, go to step 410; if so, step 412 is performed.
Step 410: the MSC server sends a forwarding number overrun notice to the BSC.
Generally, in this step, the MSC server 1 sends the forwarding number overrun notification to the calling subscriber in a manner of sending a forwarding number overrun notification tone.
Step 411: the MSC server 1 removes the call from the BSC, and ends the procedure.
The MSC server 1 tears down the call from the BSC by sending a tear down call message.
Step 412: the MSC server 1 makes forward shifting call and sends the call to the MSC server 2; and the MSC server 1 adds 1 to the number of forwarding records of the called subscriber.
Further, after releasing a forwarded call, the MSC service 1 subtracts 1 from the number of forwarded records of the called subscriber.
The above describes in detail the method flow of the embodiment of the present invention for limiting the number of times of call service in the call forwarding service through the MSC server by using two embodiments of early call forwarding and late call forwarding, and the following describes in detail the method for limiting the number of times of call service in the CT service through the MSC server by using another embodiment. The user A and the user B establish a call, the user A has the authority of the CT, and in the process of the conversation between the user A and the user B, the user A calls the user C to transfer the call to the user C, so that the user B and the user C establish connection. Fig. 5 is a flowchart of a method for limiting the number of call services in the CT service. As shown in fig. 5, the MSC server 1 is the MSC server of the subscriber a, and the MSC server 2 is the server of the subscriber C. The process comprises the following steps:
step 501: the MSC server 1 sets in advance an upper limit value of the number of allowed call services.
In this step, the MSC server of the user who performs call forwarding is preset with the upper limit of the number of times of CT allowed for the user to perform simultaneously, and the upper limit of the number of times of allowed call services is generally determined by the operator according to actual needs.
Step 502: the BSC sends the subscriber number to be transferred to the MSC server 1.
When the user A dials the number of the user C in the process of the conversation between the user A and the user B, the MSC server of the user A receives the user number of the user C sent by the BSC.
Step 503: the MSC server 1 determines whether the user has the CT right, and determines whether the current call service record number transferred by the subscriber is less than the preset upper limit of the allowable call service number. If both are yes, go to step 506; if the user does not have CT authority, go to step 505; if the record number of the current call service transferred by the subscriber is not less than the preset upper limit value of the allowed call service number, step 504 is executed.
Step 504: the MSC server 1 sends a forwarding number overrun notification to the BSC.
Step 505: the MSC tears down the call and ends the flow.
The MSC server 1 tears down the call from the BSC by sending a tear down call DISCONNECT message.
Step 506: the MSC server 1 carries out CT and sends the call to the MSC server 2; and the MSC server 1 adds 1 to the CT record number of the called subscriber.
Further, after releasing a call of a CT, the MSC server 1 decreases the number of forwarding records of the subscriber by 1.
In addition, the method for limiting the number of call service times in the call forwarding process can be realized on the HLR, the upper limit value of the number of call forwarding allowed at the same time is set on the HLR, and the HLR counts and controls the number of call forwarding allowed at the same time. However, the HLR can only increase the call forwarding times of the subscriber, and the record times of call forwarding cannot be reduced when the call forwarding of the subscriber is released. Therefore, a timer is arranged on the HLR, and the forwarding times are cleared when a certain time is exceeded. Thus, if the call forwarding function is implemented on the HLR, the number of call forwarding times of the subscriber can be limited only for a certain period of time.
The flow of the call times method for limiting the call forwarding service on the HLR is described by taking an unconditional forward conversion example in the early call forwarding, and the flow is in the time limit range without exceeding the timer. Fig. 6 is a flowchart of a method for limiting the number of call services in a call forwarding service on an HLR. As shown in fig. 6, the specific implementation thereof includes the following steps:
step 601: an upper limit value of the number of allowed call services is preset in the HLR.
This step can be done by the setup module 101 in the HLR,
step 602: the BSC sends a call request to the MSC server 1.
When user A calls user B, BSC sends call request to MSC server of called user B, and MSC responds to BSC.
Step 603: the MSC server 1 transmits a routing information request message to the HLR.
In this step, the MSC server 1 obtains the location information of the called subscriber B from the HLR through the routing information request message.
In this step, the HLR receives the routing information request message through the sending and receiving module 105 in the HLR.
Step 604: the HLR judges whether the called user signs a contract and meets the condition of triggering forwarding, wherein the called user B is a signing user and meets the condition of triggering forwarding in the embodiment; the HLR judges whether the record times of the current call service forwarded by the called user is less than the preset upper limit value of the allowed call service times, if so, the step 608 is executed; if not, step 605 is performed.
This step can be performed by the determining module 102 in the HLR.
Step 605: the HLR returns a negative cause value to the MSC server 1 by sending a routing information acknowledgement.
This step can be performed by the sending and receiving module 105 in the HLR.
Step 606: the MSC server 1 sends a forwarding number overrun notification to the BSC.
Step 607: the MSC server 1 removes the call from the BSC, and ends the procedure.
Step 608: the HLR returns the forwarding data to the MSC server 1 through the routing information confirmation message.
The forwarding data is the user number of the user C.
This step can be performed by the sending and receiving module 105 in the HLR.
Step 609: the MSC server 1 makes forward shifting call and sends the call to the MSC server 2; and the HLR adds 1 to the number of forwarding records of the called user.
In this step, adding 1 to the forwarding record number of the called subscriber can be completed by the counting module 103 in the HLR.
Furthermore, a periodic timer is set, and after the timing time limit is reached, the record times in the HLR are cleared.
The periodic timer may be defined by the timing module 106 in the HLR; the clearing of the recording times may be completed by the counting module 103 in the HLR after receiving the clear notification of the timing module 106.
The system provided by the embodiment of the present invention is described in detail below, and the system can be implemented in the following two ways: first, as shown in fig. 7.a, the system comprises: MSC server 701, and HLR 702;
the MSC server 701 sets an upper limit value of the number of times of the call service, and transmits a routing information request to the HLR 702 after receiving the call request; after receiving the forwarding data sent by the HLR 702, judging whether the recording times of the current call service of the subscriber is smaller than the upper limit value of the allowable call service times, if not, removing the current call service; if yes, the current call service is carried out according to the forwarding data, and the recording times is added by 1;
the HLR 702, after receiving the routing information request sent by the MSC server 701, sends forwarding data to the MSC server 701.
After the call service is finished, the MSC server 701 is further configured to reduce the number of times of recording by 1.
In this case, the implementation manner of the MSC server may be implemented by an MSC server provided in the embodiments of the present invention.
Secondly, as shown in fig. 7.b, the system includes: MSC server 701, and HLR 702;
the MSC server 701, after receiving the call request, sends a routing information request to the HLR 702; after forwarding data sent by HLR 702 is received, current call service is carried out according to the forwarding data; and when receiving the negative reason value sent by the HLR 702, removing the current call.
The HLR 702 sets the upper limit value of the calling service times; after receiving a routing information request sent by the MSC server 701, determining whether the recording times of the current call service of the subscriber is less than the upper limit of the allowable call service times, and if not, sending a negative cause value to the MSC server 701; if so, forwarding data is sent to the MSC server 701, and the number of records is increased by 1.
The negative cause value and the call service data may be transmitted to the MSC server through a routing information request confirm message.
Still further, the system further comprises: a timer 703 for setting a timing time limit; when the timing time limit is up, sending an up notification to the HLR 702;
the HLR 702, after receiving the arrival notification, clears the number of records.
The timer 703 is set because when the call service ends, the HLR 702 is not notified of the flow, and the HLR 702 cannot reduce the number of records by 1, so the timer 703 is set to periodically zero the number of records of the HLR 702.
The timer 703 may be provided as a separate device or may be provided in the HLR 702. When the HLR is configured in the HLR 702, the implementation manner of the HLR 702 may be implemented by an HLR provided in an embodiment of the present invention.
The first condition can be used for call forwarding service and CT service; when the call forwarding service is the call forwarding service, the call service data is a call forwarding number; when the service is CT service, the calling service data is the number of the user to be transferred.
In the second case, the data forwarding method is generally only used for the call forwarding service, and the call forwarding data is a call forwarding number.
It can be seen from the above that, the embodiments of the present invention prevent a user from simultaneously establishing a large number of connections to multiple users in a short time by limiting the number of times of ongoing call services initiated by the same subscriber, thereby reducing the influence on the benefits of operators.

Claims (14)

1.A method for processing call service is characterized in that, the upper limit value of the allowed call service times is preset; the method further comprises the following steps:
receiving call service data, and when the recording times of the current call service of the subscriber are less than the upper limit value of the allowable call service times, processing the continuous call service and increasing the recording times of the current call service of the subscriber;
and when the recording times of the current call service of the subscriber are not less than the upper limit value of the allowable call service times, rejecting the call service processing.
2. The method of claim 1, wherein the call service is a call forwarding service; the call service data is a call forwarding number;
or, the call service is a Call Transfer (CT) service; the call service data is a subscriber number to be transferred to.
3. The method of claim 1, wherein the method further comprises reducing the number of times of recording the current call service of the subscriber after the call service is finished; or,
and setting a timer, and clearing the recording times of the current call service when the timer is overtime.
4. The method of claim 1, wherein the operations of receiving call service data, conducting a continuing call service process, and rejecting a call service process are performed by an MSC;
before receiving the call service data, the MSC sends a routing information request message to the HLR after receiving the call request.
5. The method according to claim 4, wherein the upper limit value of the allowed call services is set in the MSC, and the record times of the current call services of the subscriber are recorded by the MSC;
after receiving the call service data, the MSC judges whether the recording times of the current call service of the subscriber is less than the upper limit value of the allowable call service times.
6. The method of claim 4, wherein the upper limit value of the allowed call services is set in the HLR, and the record times of the current call services of the subscriber are recorded by the HLR;
after receiving the routing information request message, the HLR judges whether the recording times of the current call service of the subscriber is less than the upper limit value of the allowable call service times, if so, the HLR returns call service data to the MSC; otherwise, sending a negative reason value to the MSC to inform that the recording times of the current call service of the subscriber is not less than the upper limit value of the allowed call service times.
7.A mobile switching center MSC server is characterized in that the MSC server comprises a setting module, a judging module, a counting module and a calling module;
the setting module is used for setting the upper limit value of the times of the call service allowed by the subscriber and sending the upper limit value to the judging module;
the judging module is used for respectively receiving the upper limit value of the allowed calling service times from the setting module and the recording times of the current calling service of the subscriber from the counting module, comparing the upper limit value of the allowed calling service times with the recording times of the current calling service of the subscriber from the counting module after receiving the triggering notice sent by the calling module, judging whether the recording times of the current calling service of the subscriber is smaller than the upper limit value of the allowed calling service times, if not, sending a refusing notice to the calling module, and if so, sending a calling notice to the calling module;
the counting module adds 1 to the recording times after receiving the recording notice sent by the judging module and sends the recording times to the judging module;
the calling module sends a routing information request message after receiving a calling request; after receiving the call service data, sending a trigger notification to a judgment module; and after receiving the call notification sent by the judging module, the current call service is dismantled, and after receiving the call notification sent by the judging module, the current call service is carried out according to the received call service data.
8. The server according to claim 7, wherein the call module is further configured to send a release notification to the determination module when releasing the call service;
the judging module sends a decrement notification to the counting module after receiving the release notification from the calling module;
and the counting module subtracts 1 from the recording times after receiving the decrement notification sent by the judging module.
9. A home location register HLR is characterized by comprising a setting module, a judging module, a counting module and a sending and receiving module;
the setting module is used for setting the upper limit value of the times of the allowed call service of the subscriber and sending the upper limit value to the judging module;
the judging module is used for respectively receiving the upper limit value of the allowed calling service times from the setting module and the recording times of the current calling service from the counting module, comparing the allowed calling service times and the recording times of the current calling service from the counting module after receiving the trigger notification of the sending and receiving module, judging whether the recording times of the current calling service of the subscriber is smaller than the upper limit value of the calling service times or not, and if not, sending a negative notification to the sending and receiving module; if yes, sending a confirmation notice to the sending and receiving module, and sending a record notice to the counting module;
the counting module is used for adding 1 to the recording times after receiving the recording notice sent by the judging module; and sending the recording times to a judging module;
the sending and receiving module sends triggering notification to the judging module after receiving the routing request information; after receiving a negative notification sent by the judging module, sending a negative reason value; and after receiving the confirmation notification sent by the judging module, sending the call service data.
10. The HLR as claimed in claim 9, wherein the HLR further comprises a timing module for setting a timing time limit; when the timing time is up, sending a zero clearing notice to the counting module;
and the counting module clears the recording times after receiving the clear notification.
11. A system for processing call service is characterized in that the system comprises an MSC server and an HLR;
MSC server, setting up upper limit value of calling service times, after receiving calling request, sending route information request to HLR; after receiving the forwarding data sent by the HLR, judging whether the recording times of the current call service of the subscriber is smaller than the upper limit value of the allowable call service times, if not, removing the current call service; if yes, the current call service is carried out according to the forwarding data, and the recording times is added by 1;
and the HLR sends forwarding data to the MSC server after receiving the routing information request sent by the MSC server.
12. The system according to claim 11, wherein said MSC server decreases the number of records by 1 after the call service is ended.
13. A system for processing call service is characterized in that the system comprises an MSC server and an HLR;
after receiving the call request, the MSC server sends a routing information request to the HLR; after forwarding data sent by an HLR is received, current calling service is carried out according to the forwarding data; when a negative reason value sent by an HLR is received, the current call is removed;
HLR, setting up the upper limit value of the calling service times; after receiving a routing information request sent by an MSC (mobile switching center) server, judging whether the recording times of the current call service of a subscriber is smaller than the upper limit value of the allowable call service times, if not, sending a negative reason value to the MSC server; if yes, forwarding data is sent to the MSC server, and the number of records is added with 1.
14. The system of claim 13, further comprising a timer for setting a timing time limit; when the timing time limit is up, sending an up notification to the HLR;
and the HLR clears the recording times after receiving the arrival notification.
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