WO2012116554A1

WO2012116554A1 - Call charging method, service control device, and call control system

Info

Publication number: WO2012116554A1
Application number: PCT/CN2011/082251
Authority: WO
Inventors: 周巨伟
Original assignee: 华为技术有限公司
Priority date: 2011-03-02
Filing date: 2011-11-16
Publication date: 2012-09-07
Also published as: CN102137378A; CN102137378B

Abstract

Disclosed are a call charging method, a service control device, and a call control system, for use in preventing the incapability to debit the charges of a preceding call due to a reserved credit of the preceding call being occupied by a subsequent call when the balance in the account of the user is relatively low. The method of embodiments of the present invention comprises: the service control device receiving a call control request transmitted by a switching device; extracting a call-specific parameter comprised within the call control request; determining whether or not a call control entry matching the call-specific parameter is present; if yes, returning a call rejection message to the switching device; if not, transmitting a charging request to a charging device. Also provided in the present invention are the service control device and the call control system.

Description

Call charging method, service control device and call control system The present application claims to be submitted to the Chinese Patent Office on March 2, 2011, the application number is 201110049891.6, and the invention name is "a call charging method, a service control device, and a call." The priority of the Chinese Patent Application for Control System, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of communications, and in particular, to a call charging method, a service control device, and a call control system. Background technique

The process of call signaling interaction in a code division multiple access (CDMA) network is as follows. When user A initiates a call to user B, an application is initiated on the service switch point (SSP) (ORREQ, Origination Request) The message interacts with the Service Control Point (SCP), and the SCP sends a CCR (Credit Control Request) message to the Convergent Billing Point (CBP) for pricing and user A. The amount is reserved in the account, and then the CBP feeds back the credit control response message (CCA, Credit Control Answer) to the SCP, and the SCP issues an application authorization message to the SSP, and the user B starts ringing, if the user B picks up the phone, User A hangs up and quits the call, and the SSP does not immediately report the relevant notification message to the SCP. Therefore, the SCP cannot immediately know that User A has hanged up. As a result, the SCP cannot notify CBP to immediately release the amount previously reserved for User A. After the preset time elapses, the SCP side actively queries the SSP for the current call state. After knowing that user A has hanged up, it immediately reports the CCR to CBP. At this time, CBP will release the amount reserved for User A and end the call.

However, in the above prior art, before the SCP side actively queries the SSP, the user A may The call is initiated. If the amount of the user A's previous account has not been released and the account balance of the user A is not released, the call initiated again will not be possible. Establish, influence the end user experience. Summary of the invention

The embodiment of the invention provides a call charging method, a service control device and a call control system, which can prevent the reserved amount of the previous call from being occupied by the latter call when the user's account balance is low, and cannot be deducted before The cost of a call.

The embodiment of the present invention provides a call charging method, including: receiving a call control request sent by a switching device, extracting a call feature parameter included therein; determining whether there is a call control entry corresponding to the call feature parameter; if yes, Returning a reject call message to the switching device; if not, sending a charging request to the charging device.

An embodiment of the present invention provides a service control device, including: a receiving unit, configured to receive a call control request sent by a switching device, and extract a call feature parameter included therein; and a determining unit, configured to determine whether the call feature parameter exists a corresponding call control entry; a returning unit, configured to return a reject call message to the switching device when the determining unit determines that there is a call control entry corresponding to the call feature parameter; When the determining unit determines that there is no call control entry corresponding to the call feature parameter, the determining unit sends a charging request to the charging device.

An embodiment of the present invention provides a call control system, including: a service control device, configured to receive a call control request sent by the switching device, extract a call feature parameter included therein, and determine whether a call feature parameter corresponds to the call feature parameter. a call control entry; if yes, returning a reject call message to the switching device; if not, issuing a charging request; the charging device, configured to receive the charging request sent by the service control device, extracting the included The call feature parameter; determining whether there is a fee reservation entry corresponding to the call feature parameter; if yes, updating the a fee reservation entry; if not, generating a fee reservation entry corresponding to the call feature parameter; and returning a charging response to the service control device.

As can be seen from the foregoing technical solutions, the embodiment of the present invention has the following advantages: The service control device receives the call control request sent by the switching device, extracts the call feature parameter included therein, and determines whether there is a call control entry corresponding to the call feature parameter. If yes, returning the reject call message to the switching device, if not, sending a charging request to the charging device, because after receiving the call control request message, the service control device first determines whether there is already a corresponding call feature parameter. The call control entry, if it exists, rejects the call control request sent by the switching device, avoiding the repeated establishment of the call between the same users, thereby avoiding the possibility of the call failure due to the unreleased amount, the connection rate is reduced, and the end user experience is reduced. affected. DRAWINGS

1 is a flowchart of an embodiment of a call charging method according to an embodiment of the present invention;

2 is a flowchart of another embodiment of a call charging method according to an embodiment of the present invention;

3 is a flowchart of still another embodiment of a call charging method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram showing the logical structure of an embodiment of a service control device according to an embodiment of the present invention; FIG. 5 is a schematic diagram showing the logical structure of an embodiment of a call control system according to an embodiment of the present invention. detailed description

The embodiment of the present invention provides a call billing and device for avoiding the possibility of a call failure due to the unreleased amount of money, reducing the connection rate and affecting the end user experience, which are described in detail below.

In the application file of the application number 200910162023.1, in order to solve the above defects, a method for performing reservation management according to the characteristics of the originating caller user information, the call information, and the service (including call, short message or other service) is adopted, when the user A initiates the call. When detecting whether there is any presence on the CBP side The call reservation information including user A and user B, if present, releases the amount reserved in the previous call before the call starts to reserve the amount, which can prevent user A from abandoning the call reservation before the user B picks up the phone. The amount cannot be released.

However, in the above prior art, if user A initiates a call to user B, in the case where a call connection exists between A and B, user A repeatedly dials user B (the previous call can be run in the background, for example, A uses a reserved call. The way will be reserved with the previous call between user B, and then call user B again, at this time user B can still answer the next call (currently some mobile terminals have such functions, such as Sony Ericsson W590i), then user A The next call initiated will release the reserved amount in the call connection that existed between A and B before, and at least a portion of this reserved amount is likely to have been used. As a result, the cancellation of the reserved amount will result in the portion of the reserved amount that has already been used cannot be accounted for by the operator, causing losses to the operator. When User A's account balance is low, if the next call is connected, it is more likely that the latter call will be deducted from the entire reserved amount at the end of the latter call, and the call charge of the previous call is insufficient due to the account balance. And can not be deducted.

For convenience of description, in the following embodiments, the switching device takes the service switching point SSP as an example, the service control device takes the service control point SCP as an example, and the charging device uses the charging control point CBP as an example. It can be understood that The above is only a specific example and does not constitute a limitation on the application of the technical solution of the present invention.

The following describes the call charging method in the embodiment of the present invention. Referring to FIG. 1 , an embodiment of the call charging method in the embodiment of the present invention includes:

101. Receive a call control request sent by the switching device, and extract a call feature parameter included therein;

In this embodiment, when the user initiates the call, the service switching point SSP sends a call control request to the service control point SCP, where the call control request may specifically be an originating application message, the SCP receives the call control request sent by the SSP, and extracts the call. Control the call feature parameters included in the request, The call feature parameter may specifically be a calling number and a called number in the current call. It should be noted that the SSP in the embodiment of the present invention may also be a Mobile Switching Center (MSC).

102. Determine whether there is a call control entry corresponding to the call feature parameter.

The SCP determines, according to the call feature parameter in the call control request sent by the SSP, whether there is a call control entry corresponding to the call feature parameter, that is, whether there is a call connection corresponding to the call feature parameter.

If yes, go to step 103. If not, go to step 104.

103. Return a reject call message to the switching device.

If the result of the SCP judgment is that there is a call control entry corresponding to the call feature parameter, that is, the call connection corresponding to the call feature parameter already exists, the reject call message is sent to the SCP, and the reject call message may specifically be an originating application. Feedback message.

104. Send a charging request to the charging device.

If the result of the SCP judgment is that there is no call control entry corresponding to the call feature parameter, that is, there is currently no call connection corresponding to the call feature parameter, then a charging request is sent to the charging control point CBP, and the charging request is specific. A credit control request message may be requested to request the CBP to reserve a fee for the current call.

In the embodiment of the present invention, the SCP receives the call control request sent by the switching device, extracts the call feature parameter included therein, determines whether there is a call control entry corresponding to the call feature parameter, and if yes, sends a reject call message to the SSP. Since after receiving the call control request, the SCP first determines whether there is already a call control entry corresponding to the current call feature parameter, and if so, rejects the call control request sent by the SSP, thereby avoiding repeated establishment of the call between the same users, thereby Avoid the possibility of a call failure when the caller's account balance is low, because the amount is not released in time, reduce the connection rate, and affect the end user experience.

For ease of understanding, the following describes a call billing party provided by an embodiment of the present invention. In this embodiment, the call control request may specifically be an originating application message, and the rejecting call message may be an initial application request feedback message, and the charging request may specifically be a credit control request message, a call setup notification. Specifically, it may be an indication of a connection feedback message, and the call termination notification may be specifically an origination disconnection request message. Specifically, referring to FIG. 2, another embodiment of the call charging method provided by the embodiment of the present invention includes:

201. Receive an initial application message sent by the service switching point, and extract the primary and called number included therein;

In the embodiment of the present invention, when the user initiates a call, the SCP receives the originating application ORREQ message sent by the SSP, and extracts the calling number and the called number included in the ORREQ message.

202. Determine whether there is a call connection that includes user number information of both parties of the call;

The SCP determines whether there is a call connection including the subscriber number information of both parties of the call. Assume that the subscriber A calls the subscriber B, and the SCP extracts the calling number (the number of the user A) and the called number (the subscriber B) included in the initial application message sent by the SSP. After the number), it is judged whether or not there is a call connection including the subscriber number information of both parties.

It should be noted that the call connection including the subscriber number information of the calling party distinguishes the calling number from the called number, and the calling number of each call is the same, and the called number is the same, and is considered to be the same call connection.

If yes, go to step 203. If not, go to step 204.

203. Return an initial application feedback message to the switching device.

If the result of the SCP judgment in step 202 is that there is a call connection including the user number information of the calling party, that is, the connection between the two parties already exists, the originating application feedback message is sent to the SCP.

204. Send a credit control request message to the charging device.

If the result of the SCP judgment in step 202 is that there is no call connection including the user number information of the calling party, that is, there is currently no connection between the two parties, the SCP is sent to the charging control point CBP. The credit control requests a CCR message, requesting the CBP to reserve a fee for the current call.

205. When receiving the indication connection feedback message sent by the switching device, generate a call connection that includes the user number information of the calling party.

In step 204, the SCP sends a credit control request CCR message to the CBP, requesting the CBP to perform a fee reservation for the current call, and the CBP sends an accounting response message to the SCP, where the charging response message may specifically be a credit control response message, and the SCP receives the message. After the charging response message, the SSP sends an indication message to the SSP to instruct the SSP to connect to the current call. The SSP feeds back the indication message, sends an indication connection feedback message to the SCP, and the SCP generates a call connection including the subscriber number information of the calling party.

206. When receiving the origination disconnect request message sent by the switching device, delete the call connection that includes the user number information of the calling party.

When the user hangs up, the SSP sends an Origination Disconnect Request message to the SCP. After receiving the message, the SSP deletes the call connection containing the subscriber number information of both parties.

In this embodiment, when the SCP determines that there is no call connection including the user number information of the calling party, the SCP sends a credit control request CCR message to the CBP, requesting the CBP to reserve the fee for the current call, and receiving the fee reservation sent by the CBP. After requesting the feedback information, the SSP is instructed to make a call connection between the users, and the SCP generates a call connection including the subscriber number information of the calling party, thereby preventing the possibility of establishing a call connection between the same users again during the normal duration of the call connection between the users. In addition, the possibility of a call failure is avoided because the amount is not released in time. When the user hangs up, the SSP sends an origination disconnect request message to the SCP. After receiving the message, the SSP deletes the call connection including the subscriber number information of the calling party, avoiding The call connection is deleted in time, affecting the next time a normal call connection is established between the two users.

For the sake of understanding, the interaction process on the switching device side, the service control device side, and the charging control device side is described in detail in a specific application scenario. Referring to FIG. 3, another embodiment of the communication method in the embodiment of the present invention is provided. include: 301. The SCP receives an initial application message sent by the SSP, and extracts a primary and a called number included therein.

When the user initiates a call, the service switching point SSP sends an originating application message ORREQ to the service control point SCP, and the SCP receives the originating application message and extracts the primary and called number contained therein.

302. The SCP determines whether there is a call connection based on both parties of the call;

The SCP determines whether there is a call connection containing the subscriber number information of both parties of the call, and if so, interrupts the call initiated by the user.

303. The SCP sends an initial application feedback message to the SSP.

If the result of the SCP judgment is that there is a call connection including the subscriber number information of the calling party, that is, the connection between the two parties already exists, the originating application feedback message is sent to the SSP, and the call connection is refused.

304. The SCP sends a credit control request message to the CBP.

If the result of the SCP judgment is that there is no call connection including the subscriber number information of the calling party, that is, there is currently no connection between the two parties, the credit control request message CCR initial is sent to the charging control point CBP, requesting the CBP to call the call. Make a reservation for the fee.

305. The SCP receives the charging response message.

After the CBP reserves the cost for the call, it sends an accounting response message CCA initial to the SCP, and the SCP receives the charging response message.

306. Instruct the SSP to perform a call connection.

After receiving the feedback information of the CBP for the fee reservation, the SCP sends a corresponding orreq message to the SSP to feedback the ORREQ, instructing the SSP to establish a call connection between the users.

307. The SCP receives a call connection feedback message sent by the SSP.

After the call connection is established between the users, the SSP sends a call connection feedback message 0 Answer to the SCP, and the SCP receives the message. 308. The SCP generates a call connection that includes user number information of the calling party.

After receiving the call connection feedback message OAnswer between the users sent by the SSP, the SCP generates a call connection containing the subscriber number information of both parties.

309. The SCP receives an origination disconnect request message sent by the SSP.

When the user hangs up, the SSP sends an origination disconnect request to the SCP ( ODISCONNECT ,

Origination_DISCONNECT ) Message, the SSP received the message.

310. The SCP deletes the call connection information that includes the information of both parties of the call.

The following describes the service control device in the embodiment of the present invention. Referring to FIG. 4, an embodiment of the service control device in the embodiment of the present invention includes:

The receiving unit 401 is configured to receive a call control request sent by the switching device, extract a call feature parameter included therein, and further receive a call setup notification and a call end notification sent by the switching device.

The determining unit 402 is configured to determine whether there is a call control entry corresponding to the call feature parameter;

Specifically, the determining unit 402 is configured to determine whether there is a call control entry corresponding to the call feature parameter in the stored call control entry.

The returning unit 403 is configured to: when the determining unit 402 determines that there is a call control entry corresponding to the call feature parameter, return a reject call message to the switching device;

The sending unit 404 is configured to send a charging request to the charging device when the determining unit 402 determines that there is no call control entry corresponding to the call feature parameter.

It should be noted that the service control device may further include:

a generating unit 405, configured to: when the receiving unit 401 receives the call setup notification sent by the switching device, generate a call control entry corresponding to the call feature parameter;

Specifically, the generating unit 405 is further configured to store the generated call control entry into the determining unit 402. The deleting unit 406 is configured to delete, when the receiving unit 401 receives the call ending notification sent by the switching device, the call control entry corresponding to the call feature parameter.

Specifically, the deleting unit 406 is further configured to delete the call control entry corresponding to the call feature parameter from the determining unit 402.

In the implementation of the present invention, the receiving unit 401 receives the call control request sent by the switching device, extracts the call feature parameter included therein, and the determining unit 402 determines whether there is a call control entry corresponding to the call feature parameter, and if yes, returns the unit 403. Return a reject call message to the switching device. If not, the sending unit 404 sends a charging request to the charging device. After the receiving unit 401 receives the call control request and extracts the call feature parameter included therein, the determining unit 402 First, it is determined whether there is already a call control entry corresponding to the call feature parameter, and if yes, returning to the unit 403, returning the reject call message to the switching device, rejecting the call request, and avoiding repeatedly establishing the call connection between the same users, thereby Avoid the possibility of a call failure when the caller's account balance is low, because the amount is not released in time, reduce the connection rate, and affect the end user experience. When the receiving unit 401 receives the call setup notification sent by the switching device, the generating unit 405 generates a call control entry corresponding to the call feature parameter, and when the receiving unit 401 receives the call ending notification sent by the switching device, the deleting unit 406 deletes The call control entry corresponding to the call feature parameter prevents the caller from establishing the call connection normally for the next call because the deletion is not timely.

The embodiment of the present invention further provides a call control system, which is in communication with a switching device. Referring to FIG. 5, the call control system of the embodiment of the present invention includes:

Service control device 501 and charging device 502;

The service control device 501 is configured to receive a call control request sent by the switching device, extract a call feature parameter included therein, determine whether there is a call control entry corresponding to the call feature parameter, and if yes, return a rejection to the switch device. Call message; if not, issue a billing request; The charging device 502 is configured to receive the charging request sent by the service control device, extract a call feature parameter included therein, determine whether there is a fee reservation entry corresponding to the call feature parameter, and if yes, update the fee reservation An entry, if no, generates a fee reservation entry corresponding to the call feature parameter and returns a charging response to the service control device. And updating the fee reservation entry when determining that there is a fee reservation entry corresponding to the call feature parameter, specifically deleting the existing fee reservation entry corresponding to the call feature parameter, And correspondingly regenerating the corresponding fee reservation entry according to the call feature parameter. Although the regenerated cost reservation entry and the deleted expense reservation entry correspond to the above call feature parameters, the regenerated cost reservation entry will contain some different parameters compared to the deleted expense reservation entry, for example However, it is not limited to parameters related to the specific generation time of the fee reservation item (or the time when the calling user initiates the call).

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, the above mentioned storage. The medium can be a read only memory, a magnetic disk or a compact disk or the like.

The foregoing describes a call charging method, a service control device, and a call control system provided by the present invention. For those skilled in the art, according to the idea of the embodiment of the present invention, in the specific implementation manner and the application range, There are variations, and the description is not to be construed as limiting the invention.

Claims

Claim

A call charging method, characterized in that it comprises:

Receiving a call control request sent by the switching device, extracting a call feature parameter included therein; determining whether there is a call control entry corresponding to the call feature parameter;

If yes, returning a reject call message to the switching device;

If not, a charging request is sent to the charging device.

The method according to claim 1, wherein after the sending the charging request to the charging device, the method further includes:

Upon receiving the call setup notification sent by the switching device, a call control entry corresponding to the call feature parameter is generated.

The method according to claim 2, wherein the method further comprises: deleting a call control entry corresponding to the call feature parameter upon receiving a call end notification sent by the switching device.

The method according to any one of claims 1 to 3, wherein the method further comprises:

The call feature parameters include a calling number and a called number.

The method according to claim 4, wherein the method further comprises: the call control request is an originating application message, and the reject call message is an originating application feedback message, and the charging request is The credit control request message, the call setup notification is an indication connection feedback message, and the call termination notification is an origination disconnection request message.

6. A service control device, comprising:

a receiving unit, configured to receive a call control request sent by the switching device, and extract a call feature parameter included therein;

a determining unit, configured to determine whether there is a call control entry corresponding to the call feature parameter;

a returning unit, configured to return a reject call message to the switching device when the determining unit determines that there is a call control entry corresponding to the call feature parameter;

And a sending unit, configured to send a charging request to the charging device when the determining unit determines that there is no call control entry corresponding to the call feature parameter.

The device according to claim 6, wherein the receiving unit is further configured to receive a call setup notification sent by the switching device, where the device further includes:

And a generating unit, configured to generate, when the receiving unit receives the call setup notification sent by the switching device, a call control entry corresponding to the call feature parameter.

The device according to claim 7, wherein the receiving unit is further configured to receive a call termination notification sent by the switching device, where the device further includes:

And a deleting unit, configured to delete, when the receiving unit receives the call ending notification sent by the switching device, a call control entry corresponding to the call feature parameter.

The device according to any one of claims 6 to 8, wherein the device further comprises:

The call feature parameters include a calling number and a called number.

The device according to claim 9, wherein the device further comprises: the call control request is an originating application message, and the reject call message is an originating application feedback message, and the charging request is The credit control request message, the call setup notification is an indication connection feedback message, and the call termination notification is an origination disconnection request message.

A call control system, in communication with a switching device, comprising: a service control device, configured to receive a call control request sent by the switching device, extract a call feature parameter included therein, and determine whether the presence and the presence Determining a call control entry corresponding to the call feature parameter; if yes, returning a reject call message to the switching device; if not, issuing a charging request;

a charging device, configured to receive the charging request sent by the service control device, extract the call feature parameter included therein, and determine whether there is a fee reservation entry corresponding to the call feature parameter; if yes, Updating the fee reservation entry; if not, generating a fee reservation entry corresponding to the call feature parameter; and returning a charging response to the service control device.