WO2015006928A1

WO2015006928A1 - Method, device and system for establishing service data flow

Info

Publication number: WO2015006928A1
Application number: PCT/CN2013/079479
Authority: WO
Inventors: 李勇
Original assignee: 华为技术有限公司
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2015-01-22

Abstract

Provided are a method, device and system for establishing a service data flow, which relate to the field of communications, and are used for realizing the establishment of a service data flow without a policy server. The method comprises: a CMTS acquiring a service establishment message sent by an application server, wherein the service establishment message is a message sent by the application server to a client; and accomplishing the establishment of a service data flow with a cable modem (CM), according to the service establishment message, wherein the service data flow is used for bearing data transmission between the CMTS and the CM. The embodiments of the present invention are used for the establishment of a service data flow.

Description

Method, device and system for establishing business data flow

The present invention relates to the field of communications, and in particular, to a method, device, and system for establishing a service data stream.

Background technique

PacketCable is a standard specification for multimedia services such as voice and video over cable television networks, which was developed in 1997. It uses Internet Protocol IP to provide a wide range of multimedia services such as IP telephony, multimedia conferencing, interactive gaming, and Multimedia application.

For the existing HFC (Hybrid Fiber Coaxial Network) network, the network mainly includes the client, CM (Cable Modem), CMTS (Cable Modem Termination System), and Policy Server. And the application server, where the client sends the service request message of the user to the application server, and the application server sends an indication message to the policy server according to the service request message, and the policy server sends a door control message to the CMTS according to the indication message (Gate-Set In order to inform the CMTS user that the service requested is a multimedia service, the CMTS negotiates with the CM to establish a service data flow, and carries the data transmission through the service data flow.

However, in an actual application, the foregoing HFC network may not include a policy server. Therefore, when the HFC network does not include a policy server, the process of establishing a service data flow by using the policy server may not be implemented.

Summary of the invention

Embodiments of the present invention provide a method, device, and system for establishing a service data flow for implementing establishment of a service data flow in the absence of a policy server.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

In a first aspect, a method for establishing a service data flow is provided, including:

The cable modem management device CMTS obtains the service establishment sent by the application server a message, where the service establishment message is a message sent by the application server to a client;

And establishing, by the cable modem CM, the establishment of the service data flow according to the service establishment message, wherein the service data flow is used to carry transmission data between the CMTS and the CM.

In a first possible implementation manner of the first aspect, the establishing the service data flow according to the service establishment message and the CM includes:

Obtaining requester interface information and responder interface information according to the service establishment message;

Establishing the service data flow with the CM according to the requestor interface information and the responder interface information.

In a second possible implementation manner of the first aspect, before the CMTS obtains a service setup message sent by the application server, the method further includes:

Obtaining a service request establishment message sent by the client, where the service request establishment message includes requester interface information and called party identification information;

Sending the service request setup message to the application server, so that the application server obtains corresponding called party interface information according to the called party identification information; and the service data flow is completed according to the service establishment message and the CM. The establishing comprises: completing the establishment of the service data flow with the CM according to the requestor interface information and the responder interface information.

In combination with the first possible implementation manner or the second possible implementation manner, in a third possible implementation, the establishing the service data flow according to the requester interface information and the responder interface information and the CM Includes:

Sending a service addition request message to the CM, where the service addition request message includes the requester interface information and the responder interface information, so that the CM establishes an uplink service according to the requester interface information and the responder interface information. a data flow, where the uplink service data flow is used to carry the transmission data of the CM to the CMT S; and receive a service addition request response message sent by the CM;

After receiving the service addition request response message, according to the requester interface The information and responder interface information establishes a downlink service data flow and sends a service addition complete message to the CM. And completing the establishment of the service data flow; where the downlink service data flow is used to carry the transmission data of the CMTS to the CM; the service data flow includes the uplink service data flow and the downlink service data flow.

With reference to the third possible implementation manner, in a fourth possible implementation, after the service adding completion message is sent to the CM, the method further includes:

Sending a service control message to the record keeping server, so that the record keeping server establishes a corresponding service policy according to the service control message;

Receiving a service control response message sent by the record keeping server according to the service control message.

With reference to the fourth possible implementation manner, in a fifth possible implementation, after receiving the service control response message sent by the record keeping server according to the service control message, the method further includes:

Sending the service establishment message to the client.

With reference to any one of the first aspect to the fifth possible implementation, in a sixth possible implementation, the method further includes:

Obtaining a service disconnection message sent by the client;

Deleting the service data stream according to the service disconnect message and the CM. With reference to the sixth possible implementation, in a seventh possible implementation, the deleting the service data flow according to the service disconnect message and the CM includes:

Sending a service deletion request message to the CM, so that the CM deletes the uplink service data flow according to the service deletion request message;

Receiving a service deletion request response message sent by the CM, and deleting the downlink service data flow according to the service deletion request response message, to complete deletion of the service data flow.

With reference to the sixth possible implementation manner or the seventh possible implementation manner, in an eighth possible implementation manner, after the deleting the service data flow according to the service disconnection message and the CM The method further includes: Sending a service release message to the record keeping server, so that the record keeping server releases the service policy according to the service release message.

With reference to the eighth possible implementation manner, in a ninth possible implementation manner, after the record keeping server releases the service policy according to the service release message, the method further includes:

After receiving the service release response message sent by the record keeping server, the service disconnection message is sent to the application server.

In a second aspect, a cable modem management device CMTS is provided, including: an obtaining unit, configured to acquire a service establishment message sent by an application server, where the service establishment message is a message sent by the application server to a client;

And a processing unit, configured to complete establishment of a service data flow with the cable modem CM according to the service establishment message, where the service data flow is used to carry transmission data between the CMTS and the CM.

In a first possible implementation manner of the second aspect, the processing unit is specifically configured to: obtain, according to the service establishment message, a requestor interface information, and a responder interface information; according to the requester interface information and the responder The interface information and the CM complete the establishment of the service data flow.

In a second possible implementation manner of the second aspect, the acquiring unit is further configured to: before the CMTS acquires a service setup message sent by the application server, obtain a service request setup message sent by the client, where the service is The request establishment message includes requester interface information and called party identification information;

The CMTS further includes: a first sending unit, configured to send the service request establishment message to the application server, so that the application server obtains corresponding called party interface information according to the called party identification information;

The processing unit is specifically configured to complete establishment of a service data flow with the CM according to the requestor interface information and the responder interface information.

In combination with the first possible implementation manner or the second possible implementation manner, in a third possible implementation manner, the CMTS further includes: a second sending unit, configured to send a service addition request message to the CM, The service addition request message includes Determining the interface information and the responder interface information, so that the CM establishes an uplink service data flow according to the requester interface information and the responder interface information, where the uplink service data flow is used to carry the CM to the CMTS Transmission data;

The obtaining unit is specifically configured to: receive a service add request response message sent by the CM;

The processing unit is configured to: after receiving the service addition request response message, establish a downlink service data flow according to the requester interface information and the responder interface information, where the downlink service data flow is used to carry the Transmission data from the CMTS to the CM;

The second sending unit is further configured to send a service addition complete message to the CM to complete establishment of a service data flow, where the service data flow includes the uplink service data flow and the downlink service data flow.

With reference to the third possible implementation manner, in a fourth possible implementation manner, the second sending unit is further configured to: after sending a service addition complete message to the CM, send a service control message to the record keeping server, So that the record keeping server establishes a corresponding service policy according to the service control message;

The obtaining unit is further configured to receive a service control response message sent by the record keeping server according to the service control message.

With reference to the fourth possible implementation manner, in a fifth possible implementation manner, the second sending unit is further configured to: after receiving the service control response message sent by the record keeping server according to the service control message Sending the service establishment message to the client.

With reference to the second aspect to the fifth possible implementation manner, in a sixth possible implementation manner, the acquiring unit is further configured to: obtain a service disconnection message sent by the client;

The processing unit is further configured to complete deletion of the service data flow according to the service disconnect message and the CM.

With reference to the sixth possible implementation manner, in a seventh possible implementation manner, the processing unit is specifically configured to: send a service deletion request message to the CM, so as to Deleting the uplink service data flow according to the service deletion request message; receiving a service deletion request response message sent by the CM, and deleting the downlink service data flow according to the service deletion request response message, to complete the The deletion of business data streams.

With the sixth possible implementation or the seventh possible implementation, in the eighth possible implementation, the second sending unit is further configured to complete the message according to the service disconnection and the CM. After the deletion of the service data stream, the service release message is sent to the record keeping server, so that the record keeping server releases the service policy according to the service release message.

With reference to the eighth possible implementation manner, in a ninth possible implementation manner, the second sending unit is further configured to: when the record keeping server releases the service policy according to the service release message, and receive the record After the service release response message sent by the server is maintained, the service disconnection message is sent to the application server.

The third aspect provides a system for establishing a service data flow, including a cable modem management device CMTS, a cable modem CM, an application server, and a record keeping server, and a client corresponding to the CM, where

The application server is configured to send a service establishment message to the client, where the service establishment message is a message sent by the application server to the client, and is further configured to receive a service disconnection message sent by the CMT S;

The CMTS includes the CMTS of any one of claims 1 to 20;

The CM is configured to complete establishment and deletion of a service data flow with the CMTS; the record keeping server is configured to receive a service control message sent by the CMTS, and establish a corresponding service policy according to the service control message, And sending a service control response message to the CMT S, and configured to receive a service release message sent by the CMTS, and release the service policy according to the service release message;

The client is configured to receive the service setup message sent by the CMT S, and is further configured to send a service disconnect message to the CMT S.

By using the foregoing solution, the CMTS acquires a service setup message sent by the application server, and completes establishment of a service data flow according to the service setup message and the cable modem CM, where the service data flow is used to carry the transmission data between the CMTS and the CM. . In this way, the service establishment message sent by the application server is obtained through the CMTS, thereby realizing the establishment of the service data flow in the absence of the policy server, and because the cost of the policy server is high, the invention further reduces the establishment of the service data. The implementation cost of the stream.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic diagram of a method for establishing a service data flow according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a method for establishing a service data flow according to an embodiment of the present invention;

3 is a schematic structural diagram of a CMTS according to an embodiment of the present invention;

4 is a schematic structural diagram of another CMTS according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of another CMTS according to an embodiment of the present invention; FIG. 6 is a schematic structural diagram of another CMTS according to an embodiment of the present invention; FIG. 7 is a schematic diagram of a system for establishing a service data flow according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present invention provides a method for establishing a service data flow. As shown in FIG. 1 , the execution entity of the method embodiment is a CMTS, and the method includes:

S1 01: The CMT S acquires a service setup message sent by the application server. The service establishment message is a message sent by the application server to the client. Specifically, the application server sends a service establishment message to the client, and the CMTS listens to the service establishment message between the application server and the client, and obtains the service establishment message after listening to the service establishment message.

S102: The CMTS completes the establishment of the service data flow according to the service establishment message and the CM. The service data stream is used to carry transmission data between the CMTS and the CM. Optionally, the CMTS obtains the requester interface information (such as the requester's IP address and UDP port parameter information) and the responder interface information (such as the responder's IP address and UDP port parameter information) according to the service setup message, and Establishing a service data flow with the CM according to the requestor interface information and the responder interface information.

Specifically, the client (the client may be a requesting client) sends a service establishment request message to the application server, where the service establishment request message includes response party identification information (such as the number of the responder) and requester interface information. The application server obtains the responder interface information by using the responder identification information, and sends a service establishment message to the CMTS, where the service setup message includes the requestor interface information and the responder interface information, and the CMTS according to the requestor interface information and the response The party interface information completes the establishment of the service data flow with the CM (the CM may be the CM corresponding to the requesting client).

Optionally, before the CMTS obtains the service setup message sent by the application server, the CMT S acquires a service request setup message sent by the client, where the service request setup message includes the requestor interface information and the responder identifier information; The service request setup message is sent to the application server, so that the application server obtains corresponding responder interface information according to the responder identification information, and completes establishment of the service data flow with the CM according to the requestor interface information and the responder interface information.

In a possible implementation manner of the present invention, the foregoing CMTS may be configured to send a service add request message to the CM according to the requestor interface information and the responder interface information, and the CMT S sends a service add request message to the CM, where The service addition request message includes the requestor interface information and the responder interface information, so that the CM establishes an uplink service data flow according to the requestor interface information and the responder interface information, and receives a service addition request response message sent by the CM, where After receiving the service add request response message, And establishing a downlink service data flow according to the requestor interface information and the responder interface information, and sending a service addition complete message to the CM, to complete establishment of the service data flow.

The service data stream includes the uplink service data stream and the downlink service data stream, where the uplink service data stream is used to carry the transmission data of the CM to the CMTS, where the lower service data stream is used to carry the transmission data of the CMTS to the CM.

It should be noted that, when the service is opened by the operator, the CMTS listens to the corresponding service message, for example, the user under the telecommunication operator opens the VOIP service or the IPTV (IP Television) service, and the different services are opened differently. Service policy, then you need to configure different listening rules. For example, for VOIP service, you only need to listen to CRCX (Create Connection), MDCX (Modify Connection), DLCX (Delete Connection), DLCX (Delete Connection). Message) These messages. For the IPTV service, IGMP (Internet Group Management Protocol) packets (such as IGMP add messages, IGMP query messages, and IGMP delete messages) are required to be monitored. When these messages are monitored, the corresponding service type can be known.

Further, after transmitting the service addition complete message to the CM, the CMTS sends a service control message to the record keeping server, so that the record keeping server establishes a corresponding service policy according to the service control message.

The CMTS receives the service control response message sent by the record keeping server according to the service control message.

The service policy may be a charging service or a call record saving service. For example, for a VO IP service, the requesting party may be the calling party, and the responding party may be the called party. When the requesting party picks up the phone and initiates a call to the responding party (for example, dialing the number of the responding party), the requesting party client The terminal sends a service request setup message to the application server, and the CMTS obtains the service request setup message by intercepting, and obtains the service initiated by the requester as a VOIP service by using the service request setup message, and obtains the IP address and UDP port of the requester. Parameter information, the CMTS sends the service request setup message to the application server, and the application server establishes a message according to the service request to obtain the identifier information of the responder (such as the number of the responder), and obtains the IP of the responder through the identifier information. The parameter information such as the address and the UDP port is sent to the requesting client and the responding client, and the responding client starts to ring after receiving the service establishing message; the CMT S listens to the application server. The service establishment message with the requesting client obtains the service establishment message, and obtains parameter information such as the IP address and the UDP port of the called party according to the service establishment message, and the CMTS sends a service addition request message to the CM, where the service The add request message includes parameter information such as the IP address and UDP port of the requester, and parameter information such as the IP address and UDP port of the responder. The CM uses the parameter information such as the IP address and UDP port of the responder and the IP address of the requester and UDP. The parameter information such as the port establishes an uplink service data flow, and sends a service addition request response message to the CMTS. After receiving the service addition request response message, the CMTS receives the parameter information such as the IP address and UDP port of the responder and the IP address of the requesting party. And parameter information such as UDP port to establish a downlink service data flow, and send a service add to the CM In the message, the service data flow is established. In addition, when the application server sends the service establishment message to the requesting client, if the CMTS corresponding to the responder and the requester is the same CMT S, the application server is in the response client. After the service sends the service establishment message, the responder client also establishes the service data flow according to the process of establishing the service data flow by the requesting party, and details are not described herein. The CMTS sends a service control message (such as a billing service and a call record saving service) to the record keeping server, and the record keeping server sends a service control response message to the CMTS after receiving the service start message.

Certainly, the foregoing establishment of the service data flow may be: after receiving the service establishment message sent by the application server, the CMTS obtains the identifier information of the responder (such as the number of the responder, etc.) according to the service establishment message, and passes the identification information. Obtaining parameter information such as an IP address and a UDP port of the responder, and sending the service establishment message to the requesting client, where the requesting client sends the service establishment message to the CM, where the service establishment message includes the responder Parameter information such as an IP address and a UDP port, and parameter information such as an IP address and a UDP port of the requesting party, the CM sends a service addition message to the CMT S according to the service establishment message, and the CMTS receives the service addition message according to the response. The parameter information such as the IP address and the UDP port of the party and the parameter information such as the IP address and the UDP port of the requesting party establish a downlink service data flow, and the downlink service data flow After the establishment is completed, a service addition response message is sent to the CM. After receiving the service addition response message, the CM obtains the parameter information such as the IP address and UDP port of the responder and the parameter information such as the IP address and UDP port of the requester. The uplink service data flow is established to complete the establishment of the service data flow, and the CMTS sends a service control message to the record keeping server, so that the record keeping server establishes a corresponding service such as charging and call record storage according to the service control message.

After the responder goes off-hook, the call is turned on, the responding client sends a close message to the application server, and the application server sends the connect message to the CMTS, and the CMTS learns that the responder has been notified according to the connect message. Off-hook, a service start message is sent to the record keeping server, so that the record keeping server starts to perform services such as billing and call record saving, and the record keeping server sends a service start response message to the CMTS after receiving the service start message. The above is only an example of the VOIP service, and is not limited.

Further, after receiving the service control response message sent by the record keeping server according to the service control message, the CMTS sends the service establishment message to the client.

Specifically, the CMTS sends the service establishment message that is intercepted and acquired to the client. It should be noted that, if the CMTS corresponding to the requesting party and the responding party are the same CMTS, the CMTS separately sends the service establishment message sent by the intercepted and acquired application server to the requesting client and the responding client to the requesting party and the response. square.

When the service between the requester and the responder ends, the CMTS obtains a service disconnection message sent by the client, and completes the deletion of the service data flow according to the service disconnect message and the CM.

Specifically, the CMTS sends a service deletion request message to the CM, so that the CM deletes the uplink service data flow according to the service deletion request message, and the CMTS receives the service deletion request response message sent by the CM, and deletes the service deletion request response message according to the service deletion request message. The downlink service data stream is used to complete the deletion of the service data stream.

For example, for a VOIP service, the requesting party may be a calling party, and the responding party may be a called party. When the requesting party hangs up, the requesting client sends a service disconnection message to the application server, and the CMTS listens and acquires After the service disconnects the message, the service deletion request message is sent to the CM, so that the CM deletes the uplink service data flow, and the CM deletes the After the uplink service data flow, the service deletion request response message is sent to the CMTS, and the CMTS deletes the downlink service data flow according to the service deletion request response message to complete the deletion of the service data flow.

In addition, if the responding party hangs up, the responding client sends a service disconnection message to the application server, and after the CMTS monitors and acquires the service disconnection message, the CMTS sends a disconnection indication message to the CM corresponding to the responding party, and the responder After receiving the disconnection indication message, the corresponding CM sends a service deletion request message to the CMTS, so that the CMT S deletes the downlink service data flow, and after deleting the downlink service data flow, the CMTS sends a service deletion request to the CM corresponding to the responding party. Responding to the message, so that the CM corresponding to the responding party deletes the uplink service data stream to complete the deletion of the service data stream.

Further, the CMTS sends a service release message to the record keeping server, so that the record keeping server releases the service policy according to the service release message.

Specifically, the record keeping server receives the service release message, and stops the monthly service corresponding to the service between the requester and the responder (such as the billing service and the call record saving service).

The CMTS sends the service disconnection message to the application server after the record keeping server releases the service policy according to the service release message and receives the service release response message sent by the record keeping server.

In this way, in the absence of a policy server, the establishment of the service data flow is realized, and because the cost of the policy server is high, the implementation cost of establishing the service data flow is further reduced. An embodiment of the present invention provides a method for establishing a service data flow. As shown in FIG. 2, the embodiment of the present invention uses a VO IP service as an example. The requesting party is the calling party, and the corresponding client is the calling client. The CM corresponding to the calling client is the calling CM, the responding party is the called party, the corresponding client is the called client, and the CM corresponding to the called client is the called CM (not shown), including :

S 2 0 K After the calling party picks up the phone and initiates the call, the CMTS listens and acquires a service request establishment message between the calling client and the application server. Specifically, after the calling party initiates the call, the calling client sends a service request setup message to the application server, and the CMTS listens for and acquires the service request setup message.

S202. The CMTS establishes a message according to the service request to obtain parameter information such as an IP address and a UDP port of the calling party, and sends the service request establishment message to the application server.

Specifically, the CMTS determines, according to the service request establishment message, that the corresponding service is a VOIP service initiated by the calling party, and obtains parameter information such as an IP address and a UDP port of the calling party.

It should be noted that, when the service is opened by the operator, the CMTS listens to the corresponding service message, for example, the user under the telecommunication operator opens the VOIP service or the IPTV (IP Television) service, and the different services are opened differently. Service policy, then you need to configure different listening rules. For example, for VOIP services, you only need to listen to CRCX, MDCX, and DLCX in the service message. For the IPTV service, you need to listen to IGMP messages (such as IGMP add messages, IGMP query messages, and IGMP delete messages). When these messages are detected, the corresponding service type can be known.

S203. The application server establishes a message according to the service request to obtain parameter information such as an IP address and a UDP port of the called party, and sends a service establishment message to the calling client and the called client.

Specifically, the service request setup message includes response party identification information (such as the number of the called party), and the application server obtains parameter information such as an IP address and a UDP port of the called party according to the response party identification information.

After receiving the service setup message, the called client causes the called party to start ringing.

S204. The CMTS obtains the service setup message, and obtains parameter information such as an IP address and a UDP port of the called party according to the service setup message, and sends a service addition request message to the calling CM.

The service addition request message includes parameter information such as an IP address and a UDP port of the calling party, and parameter information such as an IP address and a UDP port of the called party.

Specifically, the CMTS monitors the service between the application server and the calling client. The message is established, and after the service establishment message is monitored, the service establishment message is obtained.

S205. The calling CM establishes an uplink service data flow according to parameter information such as an IP address and a UDP port of the calling party, and parameter information such as an IP address and a UDP port of the called party.

The uplink service data stream is used to carry the transmission data of the calling CM to the CMTS. S206. The calling CM sends a service addition request response message to the CMTS.

After receiving the service addition request response message, the CMTS establishes a downlink service data flow according to the parameter information such as the IP address and the UDP port of the calling party, and the parameter information such as the IP address and the UDP port of the called party, thereby completing the service data. The establishment of the flow.

The downlink service data stream is used to carry transmission data of the CMTS to the calling CM, where the service data stream includes an uplink service data stream and a downlink service data stream.

S208. The CMTS sends a service addition complete message to the calling CM to notify the calling CM that the service data flow has been established.

It should be noted that if the CMTS corresponding to the called party and the calling party are the same CMTS, the application server also sends a service establishment message to the called party client, and the called party client also follows the above steps S204 to the step. The process of S208 establishes a service data flow, except that the establishment of the called party service data flow is completed by the CMTS and the called CM. It will not be described here.

S209. The CMTS sends a service control message to the record keeping server.

The service control message may be a charging service and a call record saving service. S210. The CMTS receives the service control response message sent by the record keeping server. S21K After the called party picks up the phone, the called client sends an open message to the application server.

5212. The application server sends the connect message to the CMTS.

5213. The CMTS learns that the responder has gone off-hook according to the connection message, and sends a service start message to the record keeping server, so that the record keeping server starts to perform services such as charging and call record saving.

5214. After receiving the service start message, the record keeping server sends a service start response message to the CMTS.

5215. After receiving the service start response message, the CMTS will build the acquired service. A message is sent to the calling client.

At this time, the calling party can conduct a session with the called party through the service data flow established above, and when the calling party ends the session with the called party (ie, the calling party hangs up), then steps S216 to S220 are performed.

5216. The CMTS obtains a service disconnect message sent by the calling client.

Specifically, after the calling party hangs up, the calling client sends a service disconnection message to the application server, and the CMTS intercepts the service disconnection message between the calling client and the application server, and listens to the service disconnection message. After that, get the business disconnect message.

5217. The CMTS sends a service deletion request message to the calling CM.

S218. The calling CM deletes the uplink service data flow according to the service deletion request message, and sends a service deletion request response message to the CMTS.

5219. The CMTS deletes the downlink service data flow according to the service deletion request response message, to complete deletion of the service data flow.

It should be noted that, in another possible implementation manner of the present invention, when the called party ends the session with the calling party (that is, the called party hangs up), the called client sends a service to the application server. After the message is sent, the CMTS sends a disconnection indication message to the called CM after receiving the service disconnection message, and after receiving the disconnection indication message, the called CM sends a service deletion request message to the CMTS, so that the The CMTS deletes the downlink service data stream, and after deleting the downlink service data stream, the CMTS sends a service deletion request response message to the called CM, so that the called CM deletes the uplink service data stream to complete the deletion of the service data stream.

5220. The CMTS sends a service release message to the record keeping server.

The S22K record keeping server sends a service release response message to the CMTS to stop the services between the calling party and the called party (such as the charging service and the call record saving service).

S222. The CMTS sends the obtained service disconnection message to the application server, thereby ending the VOIP service between the calling party and the called party.

By adopting the above solution, in the VOIP service, in the absence of the policy server, the establishment of the service data flow is realized, and because the cost of the policy server is high, the implementation cost of establishing the service data flow is further reduced. It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence, because In the present invention, certain steps may be performed in other orders or simultaneously. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention. An embodiment of the present invention provides a CMTS 30, as shown in FIG. 3, including:

The obtaining unit 31 is configured to obtain a service establishment message sent by the application server.

The service establishment message is a message sent by the application server to the client. Specifically, the application server sends a service establishment message to the client, and the CMTS monitors the service establishment message between the application server and the client, and obtains the service establishment message after listening to the service establishment message.

The processing unit 32 is configured to complete the establishment of the service data flow according to the service setup message and the cable modem CM.

The service data stream is used to carry transmission data between the CMTS and the CM, where the service data stream includes the uplink service data stream and the downlink service data stream, where the uplink service data stream is used to carry the transmission of the CM to the CMTS. Data; the downlink service data stream is used to carry transmission data of the CMTS to the CM.

Optionally, the processing unit is configured to obtain requester interface information and responder interface information according to the service establishment message, and complete establishment of the service data flow with the CM according to the requestor interface information and the responder interface information.

Specifically, the client (the client may be a requesting client) sends a service establishment request message to the application server, where the service establishment request message includes response party identification information (such as the number of the responder) and requester interface information. The application server obtains the responder interface information by using the responder identification information, and sends a service establishment message to the CMTS, where the service setup message includes the requestor interface information and the responder interface information, and the CMTS according to the requestor interface information and the response The party interface information completes the establishment of the service data flow with the CM (the CM may be the CM corresponding to the requesting client). Optionally, as shown in FIG. 4, the acquiring unit 31 is further configured to: before the CMTS acquires the service establishment message sent by the application server, obtain a service request setup message sent by the client.

The service request setup message includes requester interface information and called party identification information.

The CMTS 30 further includes: a first sending unit 33, configured to send the service request setup message to the application server, so that the application server obtains corresponding called party interface information according to the called party identification information.

The processing unit is specifically configured to complete the establishment of the service data flow with the CM according to the requestor interface information and the responder interface information.

Further, as shown in FIG. 5, the CMTS 30 further includes: a second sending unit 34, configured to send a service add request message to the CM, where the service add request message includes the requester interface information and the responder interface information, So that the CM establishes an uplink service data flow according to the requestor interface information and the responder interface information.

The obtaining unit 31 is specifically configured to receive a service addition request response message sent by the CM.

The processing unit 32 is specifically configured to: after receiving the service addition request response message, establish a downlink service data flow according to the requestor interface information and the responder interface information.

The second sending unit 34 is further configured to send a service addition complete message to the CM to complete establishment of the service data flow.

Optionally, the second sending unit 34 is further configured to: add a service to the CM. After the message is completed, a service control message is sent to the record keeping server, so that the record keeping server establishes a corresponding service policy according to the service control message.

The obtaining unit 31 is further configured to receive a service control response message sent by the record keeping server according to the service control message.

The service policy may be a charging service or a call record saving service. For example, for a VO IP service, the requesting party may be the calling party, and the responding party may be the called party. When the requesting party picks up the phone and initiates a call to the responding party (for example, dialing the number of the responding party), the requesting party client The terminal sends a service request setup message to the application server, and the CMT S obtains the service request setup message by listening, and learns, by using the service request setup message, that the service initiated by the requester is a VO IP service, and obtains the IP address and UDP of the requester. The parameter information such as the port is sent by the CMTS to the application server, and the application server establishes a message according to the service request to obtain identification information of the responder (such as the number of the responder), and obtains the response party by using the identifier information. The parameter information such as the IP address and the UDP port is sent to the requesting client and the responding client, and the responding client starts to ring after receiving the service establishment message; the CMT S monitors the application. The service establishment message between the server and the requesting client obtains the service establishment message And obtaining the parameter information such as the IP address and the UDP port of the called party according to the service establishment message, and the CMTS sends a service addition request message to the CM, where the service addition request message includes parameter information and response such as the IP address and UDP port of the requesting party. The parameter information such as the IP address and UDP port of the party, the CM establishes an uplink service data flow according to the parameter information such as the IP address and UDP port of the responder, the IP address of the requester, and the parameter information such as the UDP port, and sends a service addition request to the CMTS. After receiving the service addition request response message, the CMTS establishes a downlink service data flow according to the parameter information such as the IP address and the UDP port of the responder, the IP address of the requester, and the parameter information such as the UDP port, and sends the service to the CM. The completion message is added to complete the establishment of the service data flow. In addition, when the application server sends the service establishment message to the requesting client, if the CMTS corresponding to the responder and the requester is the same CMT S, the application server also responds. The party client sends a service setup message, and the responder client also follows the above request. Process to establish business data stream traffic data The establishment of the flow is not repeated here. The CMTS sends a service control message (such as a billing service and a call record saving service) to the record keeping server, and the record keeping server sends a service control response message to the CMTS after receiving the service start message.

Certainly, the foregoing establishment of the service data flow may be: after receiving the service establishment message sent by the application server, the CMTS obtains the identifier information of the responder (such as the number of the responder, etc.) according to the service establishment message, and passes the identification information. Obtaining parameter information such as an IP address and a UDP port of the responder, and sending the service establishment message to the requesting client, where the requesting client sends the service establishment message to the CM, where the service establishment message includes the responder Parameter information such as an IP address and a UDP port, and parameter information such as an IP address and a UDP port of the requesting party, the CM sends a service addition message to the CMT S according to the service establishment message, and the CMTS receives the service addition message according to the response. The parameter information such as the IP address and the UDP port of the party and the parameter information such as the IP address and the UDP port of the requesting party establish a downlink service data flow, and after the downlink service data flow is established, send a service addition response message to the CM, where the CM is After receiving the service add response message, according to the obtained ringing The parameter data such as the IP address and the UDP port of the respondent and the parameter information such as the IP address and the UDP port of the requesting party establish an uplink service data flow, thereby completing the establishment of the service data flow, and the CMTS sends a service control message to the record keeping server for the record. The server is maintained to establish a corresponding service such as charging and call record storage according to the service control message.

After the responder goes off-hook, the call is turned on, the responder client sends a connect message to the application server, and the application server sends the connect message to the CMTS, and the CMTS learns that the responder has been notified according to the connect message. Off-hook, a service start message is sent to the record keeping server, so that the record keeping server starts to perform services such as billing and call record saving, and the record keeping server sends a service start response message to the CMTS after receiving the service start message. The above is only an example of the VO I P service, and is not limited.

Further, the second sending unit 34 is further configured to: after receiving the service control response message sent by the record keeping server according to the service control message, send the service establishment message to the client.

Further, the obtaining unit 31 is further configured to acquire a service disconnection message sent by the client.

The processing unit 32 is further configured to complete the deletion of the service data flow according to the service disconnect message and the CM.

Specifically, the CMTS sends a service deletion request message to the CM, so that the CM deletes the uplink service data flow according to the service deletion request message, and receives the service deletion request response message sent by the CM, and deletes the service deletion request response message according to the service deletion request message. The downlink service data stream is used to complete the deletion of the service data stream.

For example, for a VO IP service, the requesting party may be a calling party, and the responding party may be a called party. When the requesting party hangs up, the requesting client sends a service disconnection message to the application server, and the CMTS listens and acquires. After the service disconnection message is sent, the service deletion request message is sent to the CM, so that the CM deletes the uplink service data flow, and after deleting the uplink service data flow, the CM sends a service deletion request response message to the CMTS, and the CMTS deletes the service according to the service. The request response message deletes the downlink service data stream to complete the deletion of the service data stream.

Further, the second sending unit 34 is further configured to: after completing the deletion of the service data flow according to the service disconnect message and the CM, send a service release message to the record keeping server, so that the record keeping server is according to the service Release the message to release the service policy. Specifically, the record keeping server receives the service release message, and stops the monthly service corresponding to the service between the requester and the responder (such as the billing service and the call record saving service).

The second sending unit 34 is further configured to: after the record keeping server releases the service policy according to the service release message and receives the service release response message sent by the record keeping server, send the service disconnect message to the application server.

By using the above CMTS, the establishment of the service data flow can be realized in the absence of the policy server, and the cost of establishing the service data stream is further reduced due to the high cost of the policy server.

It will be apparent to those skilled in the art that, for the convenience and simplicity of the description, the specific working process and description of the CMTS described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

The embodiment of the present invention provides a CMTS 60. As shown in FIG. 6, the CMTS 60 includes:

a processor (Rocessor) 61, a communication interface 62, a memory 63, and a communication bus 64; wherein the processor 61, the communication interface 62, and the memory 63 pass through the communication bus 64. Complete communication with each other.

The processor 61 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits that have been implemented to implement the embodiments of the present invention.

The memory 63 is for storing program code, and the program code includes computer operation instructions. Memory 63 may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The communication interface 62 is configured to implement connection communication between the devices.

The processor 61 executes program code for acquiring a service establishment message sent by the application server, where the service establishment message is a message sent by the application server to the client, and the service data is completed according to the service establishment message and the cable modem CM. The establishment of the flow. The service data stream is used to carry transmission data between the CMT S and the CM. Optionally, the processor 61 is configured to obtain the requestor interface information and the responder interface information according to the service establishment message, and complete the establishment of the service data flow according to the requestor interface information and the responder interface information. .

Optionally, the processor 61 is further configured to: obtain a service request setup message sent by the client, where the service request setup message includes the requester interface information and the called party identifier information, and send the service request setup message to the The application server, so that the application server obtains corresponding called party interface information according to the called party identification information, and completes establishment of the service data flow with the CM according to the requestor interface information and the responder interface information.

Optionally, the processor 61 is specifically configured to send a service add request message to the CM, where the service add request message includes the requester interface information and the responder interface information, so that the CM is configured according to the requestor interface information. Establishing an uplink service data flow with the responder interface information, receiving a service addition request response message sent by the CM, and after receiving the service addition request response message, establishing a downlink service data flow according to the requester interface information and the responder interface information. And send a service add completion message to the CM. To complete the establishment of the business data stream.

The uplink service data stream is used to carry the CM to the CMTS transmission data; the downlink service data stream is used to carry the CMT S to the CM transmission data; the service data stream includes the uplink service data stream and the downlink service data stream. .

Optionally, the processor 61 is further configured to send a service control message to the record keeping server, so that the record keeping server establishes a corresponding service policy according to the service control message, and receives the record keeping server to send according to the service control message. Service control response message.

Optionally, the processor 61 is further configured to: after receiving the service control response message sent by the record keeping server according to the service control message, send the service establishment message to the client.

Optionally, the processor 61 is further configured to: obtain a service disconnection message sent by the client, and complete deletion of the service data flow according to the service disconnect message and the CM. Optionally, the processor 6 is configured to send a service deletion request message to the CM, so that the CM deletes the uplink service data flow according to the service deletion request message, and receives a service deletion request response message sent by the CM, and Deleting the downlink service data flow according to the service deletion request response message to complete deletion of the service data flow.

Optionally, the processor 61 is further configured to: after the disconnecting the service data stream and the CM complete the deletion of the service data stream, send a service release message to the record keeping server, so that the record keeping server is configured according to the The service release message releases the service policy.

Optionally, the processor 61 is further configured to: after the record keeping server releases the service policy according to the service release message, and send the service release response message sent by the record keeping server, send the service disconnect message To the application server. An embodiment of the present invention provides a system for establishing a service data flow. As shown in FIG. 7, the system includes:

a CMTS 30, a CM 7 1 , an application server 72 and a record keeping server 7 3 and a client 74 corresponding to the CM7 1 , wherein

The application server 72 is configured to send a service establishment message to the client 74. The service establishment message is a message sent by the application server to the client, and is also used to receive a service disconnection message sent by the CMTS.

The CMTS 30 includes the CMTS described in Figures 3, 4 and 5 above.

The CM 7 1 is used to complete the establishment and deletion of a service data flow with the CMT S 30. The record keeping server 73 is configured to receive the service control message sent by the CMTS 30, and establish a corresponding service policy according to the service control message, and send a service control response message to the CMTS 30, and is further configured to receive the CMTS 30 sending The service releases the message and releases the service policy based on the service release message.

The client 74 is configured to receive the service setup message sent by the CMTS 30, and is further configured to send a service disconnect message to the CMTS 30.

It should be noted that the above system may be an HFC.

In this way, the above system implements the establishment of the service data flow without including the policy server, and further reduces the establishment due to the high cost of the policy server. The cost of implementing a business data stream.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

claims

1. A method of establishing business data flow, characterized by including:

The cable modem management equipment CMTS obtains the service establishment message sent by the application server, where the service establishment message is a message sent by the application server to the client;

The service data flow is established with the cable modem CM according to the service establishment message, where the service data flow is used to carry transmission data between the CMTS and the CM.

2. The method according to claim 1, characterized in that, completing the establishment of the service data flow according to the service establishment message and the CM includes:

Obtain the requester interface information and the responder interface information according to the service establishment message; and complete the establishment of the service data flow with the CM according to the requester interface information and the responder interface information.

3. The method according to claim 1, characterized in that, before the CMTS obtains the service establishment message sent by the application server, the method further includes:

Obtain the service request establishment message sent by the client, where the service request establishment message includes the requesting party interface information and the called party identification information;

Send the service request establishment message to the application server, so that the application server obtains the corresponding called party interface information according to the called party identification information;

The step of completing the establishment of the service data flow with the CM according to the service establishment message includes: completing the establishment of the service data flow with the CM according to the requester interface information and the responder interface information.

4. The method according to claim 2 or 3, characterized in that, completing the establishment of the service data flow according to the requester interface information and the responder interface information and the CM includes:

Send a service addition request message to the CM, where the service addition request message includes the requester interface information and the responder interface information, so that the CM establishes an uplink service based on the requester interface information and the responder interface information. Data flow, wherein the uplink service data flow is used to carry transmission data from the CM to the CMTS; Receive the service addition request response message sent by the CM;

After receiving the service addition request response message, a downlink service data flow is established based on the requester interface information and the responder interface information, and a service addition completion message is sent to the CM. To complete the establishment of the service data flow; wherein, the downlink service data flow is used to carry the transmission data from the CMTS to the CM; the service data flow includes the uplink service data flow and the downlink service data flow.

5. The method according to claim 4, characterized in that, after sending a service addition completion message to the CM, the method further includes:

Send a service control message to the record keeping server, so that the record keeping server establishes a corresponding service policy based on the service control message;

Receive a service control response message sent by the record keeping server according to the service control message.

6. The method according to claim 5, wherein after receiving the service control response message sent by the record keeping server according to the service control message, the method further includes:

Send the service establishment message to the client.

7. The method according to any one of claims 1 to 6, characterized in that the method further includes:

Obtain the service disconnection message sent by the client;

The deletion of the service data flow is completed according to the service disconnection message and the CM.

8. The method according to claim 7, characterized in that, completing the deletion of the service data flow according to the service disconnection message and the CM includes:

Send a service deletion request message to the CM, so that the CM deletes the uplink service data flow according to the service deletion request message;

Receive the service deletion request response message sent by the CM, and delete the downlink service data flow according to the service deletion request response message to complete the deletion of the service data flow.

9. The method according to claim 7 or 8, characterized in that, after the deletion of the service data flow is completed according to the service disconnection message and the CM, the method The law also includes:

Send a service release message to the record keeping server, so that the record keeping server releases the service policy according to the service release message.

10. The method according to claim 9, characterized in that, after the record keeping server releases the service policy according to the service release message, the method further includes:

After receiving the service release response message sent by the record keeping server, the service disconnect message is sent to the application server.

11. A cable modem management device CMTS, characterized in that it includes: an acquisition unit, configured to acquire a service establishment message sent by an application server, wherein the service establishment message is a message sent by the application server to the client;

A processing unit, configured to complete the establishment of a service data flow with the cable modem CM according to the service establishment message, wherein the service data flow is used to carry transmission data between the CMTS and the CM.

12. The CMTS according to claim 11, wherein the processing unit is specifically configured to obtain requester interface information and responder interface information according to the service establishment message;

Complete the establishment of service data flow with the CM according to the requester interface information and responder interface information.

13. According to claim 11, before the service establishment message sent by the applied server, obtain the service request establishment message sent by the client, wherein the service request establishment message includes the requesting party interface information and the called party identification information;

The CMTS also includes: a first sending unit, configured to send the service request establishment message to the application server, so that the application server obtains the corresponding called party interface information according to the called party identification information;

The processing unit is specifically configured to complete the establishment of a service data flow with the CM according to the requester interface information and the responder interface information.

14. The CMTS according to claim 12 or 13, characterized in that, the CMTS further includes: a second sending unit, configured to send a service addition request message to the CM, , the service addition request message includes the requester interface information and the responder interface information, so that the CM establishes an uplink service data flow according to the requester interface information and the responder interface information, wherein, the uplink service data The stream is used to carry transmission data from the CM to the CMTS;

The acquisition unit is specifically configured to receive the service addition request response message sent by the CM;

The processing unit is specifically configured to, after receiving the service addition request response message, establish a downlink service data flow according to the requester interface information and the responder interface information, wherein the downlink service data flow is used to carry the Transmission data from CMTS to the CM;

The second sending unit is also configured to send a service addition completion message to the CM to complete the establishment of a service data flow, where the service data flow includes the uplink service data flow and the downlink service data flow.

15. The CMTS according to claim 14, wherein the second sending unit is further configured to, after sending a service addition completion message to the CM, send a service control message to the record keeping server, so that the The record keeping server establishes a corresponding service policy according to the service control message;

16. The CMTS according to claim 15, wherein the second sending unit is further configured to, after receiving the service control response message sent by the record keeping server according to the service control message, send The service establishment message is sent to the client.

17. The CMTS according to any one of claims 11 to 16, characterized in that the obtaining unit is also used to obtain the service disconnection message sent by the client;

The processing unit is also configured to complete deletion of the service data flow according to the service disconnection message and the CM.

18. The CMTS according to claim 17, wherein the processing unit is specifically configured to send a service deletion request message to the CM, so that the CM deletes the uplink according to the service deletion request message. Business data flow; Receive business data sent by the CM service deletion request response message, and deletes the downlink service data flow according to the service deletion request response message to complete deletion of the service data flow.

19. The CMTS according to claim 17 or 18, characterized in that the second sending unit is further configured to complete the deletion of the service data flow according to the service disconnection message and the CM. Finally, a service release message is sent to the record keeping server, so that the record keeping server releases the service policy according to the service release message.

20. The CMTS according to claim 19, wherein the second sending unit is further configured to release the service policy according to the service release message at the record keeping server and receive the service policy sent by the record keeping server. After receiving the service release response message, the service disconnect message is sent to the application server.

21. A system for establishing service data flows, characterized by including a cable modem management device CMTS, a cable modem CM, an application server and a record keeping server, and a client corresponding to the CM, where,

The application server is used to send a service establishment message to the client; wherein the service establishment message is a message sent by the application server to the client, and is also used to receive a service disconnection message sent by the CMTS;

The CMTS includes the CMTS described in any one of claims 11 to 20;

The CM is used to complete the establishment and deletion of service data flows with the CMTS; the record keeping server is used to receive the service control message sent by the CMTS, and establish a corresponding service policy according to the service control message, and send a service control response message to the CMTS, and also be used to receive a service release message sent by the CMTS, and release the service policy according to the service release message;

The client is configured to receive the service establishment message sent by the CMTS, and is also configured to send a service disconnection message to the CMTS.