CN106506319B - The transmission method and transfer gateway of service quality session parameter in webpage real time communication - Google Patents
The transmission method and transfer gateway of service quality session parameter in webpage real time communication Download PDFInfo
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Abstract
The present invention provides the transmission methods and transfer gateway of service quality session parameter in a kind of webpage real time communication.The transmission method, applied to a webpage real time communication WebRTC transfer gateway, and WebRTC transfer gateway is arranged independently of Proxy Call Session Control Function unit/Session Border Controller P-CSCF/SBC, wherein, the transmission method includes: the session information for receiving the WebRTC business that WebRTC terminal is sent, it wherein, include the session parameter of WebRTC business in the session information；The session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the service quality of the WebRTC business of the WebRTC terminal.When above scheme, WebRTC transfer gateway and P-CSCF/SBC are provided separately, when carrying out WebRTC business, WebRTC transfer gateway can be directly realized by the communication with PCRF, ensure that WebRTC terminal to the service quality between WebRTC transfer gateway with this.
Description
Technical field
The present invention relates to data service technical field, in particular to service quality session parameter in a kind of webpage real time communication
Transmission method and transfer gateway.
Background technique
Webpage real time communication (Web Real-Time Communication, abbreviation WebRTC) is a kind of based on web browsing
The real-time audio and video communication technology of device, it is integrated with basic media capability needed for real time communication in browser, does not need to insert
Part, which can facilitate, realizes audio-video function.Therefore WebRTC technology and IP multimedia subsystem (IP Multimedia
Subsystem, abbreviation IMS) the expansible IMS client form of combination, optimize user experience, facilitate abundant IMS business shape
Formula.
It realizes WebRTC terminal access to IMS, needs to introduce WebRTC transfer gateway, which will be main
Signalling conversion is completed, such as: hypertext transfer protocol/Web socket (HTTP/WebSocket) and session initiation protocol
Conversion between (Session Initiation Protocol, abbreviation SIP)；Media conversion, such as: Security Real Time Protocol
(Secure Real-time Transport Protocol, abbreviation SRTP) and real-time transport protocol (Real-time
Transport Protocol, abbreviation RTP) between conversion.
As shown in Figure 1, when WebRTC transfer gateway and Proxy Call Session Control Function unit/Session Border Controller
(P-CSCF/SBC) when conjunction is set, P-CSCF/SBC passes through Rx reference point (a kind of communication interface) to strategy and charging rule functions list
First (Policy and Charging Rules Function, abbreviation PCRF) is sent from session initiation protocol/conversation description association
The information that view (SIP/Session Description Protocol, abbreviation SDP) session establishment signaling obtains.The information makes
PCRF forms the IP QoS data and suitable policy control rule of authorization, these data and rule can be further conveyed to strategy
And charge execution function unit (Policy and Charging Enforcement Function, abbreviation PCEF), usually
PCEF and system architecture evolution gateway (System Architecture Evolution Gateway, abbreviation SAE-GW)
Conjunction is set.Based on these data and rule, PCEF, which will be established, suitably to be gated, and ensures the WebRTC terminal to P-CSCF/SBC with this
Service quality (Quality of Service, abbreviation QoS).
In existing scheme, QoS is ensured with charging control (PCC) mechanism using existing strategy.The mechanism can be to IMS matchmaker
Traffic streams to be used are authorized and are controlled by body Business Stream, real based on the SDP parameter negotiated in IMS session
Now control service quality, the source/destination address of IMS media business stream and the function of media business stream start and stop time.
And when WebRTC transfer gateway and P-CSCF/SBC set up separately, WebRTC transfer gateway function is advanced into use
Family side is deployed in closer to the side of WebRTC terminal, passes through W1 reference point between WebRTC terminal and WebRTC transfer gateway
It connects；The transmitting of the SIP signalings such as WebRTC transfer gateway and SBC registered by Gm reference point, session control.
Under current mechanism, WebRTC transfer gateway can realize that QoS is ensured based on PCC mechanism between SBC, and WebRTC
It is difficult to ensure QoS between terminal and WebRTC transfer gateway.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of transmitting of service quality session parameter in webpage real time communication
Method and transfer gateway, when setting up separately to solve WebRTC transfer gateway with P-CSCF/SBC, WebRTC terminal and WebRTC turn
The problem of QoS between draping pass is difficult to ensure.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides service quality session ginseng in a kind of webpage real time communication
Several transmission methods is applied to a webpage real time communication WebRTC transfer gateway, and WebRTC transfer gateway is exhaled independently of agency
Cry the setting of conversation control function unit/Session Border Controller P-CSCF/SBC, wherein the transmission method includes:
Receive the session information for the WebRTC business that WebRTC terminal is sent, wherein include in the session information
The session parameter of WebRTC business；
The session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function PCRF, so that
PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the WebRTC industry of the WebRTC terminal
The service quality of business.
Further, the transmission method further include:
It sends and carries the instruction message of a default mark to P-CSCF/SBC, the default mark in the instruction message is used
Inhibit the session that the WebRTC business is sent by the Rx interface between P-CSCF/SBC and PCRF in instruction P-CSCF/SBC
Information.
Further, the instruction message is session initiation protocol sip message.
Further, the session parameter extracted in the session information, and it is sent to strategy and charging rule functions
The step of unit PCRF specifically:
The session parameter in the session information is extracted, and the session parameter is passed through into WebRTC transfer gateway and PCRF
Between Rx interface be sent to the PCRF.
Further, the session parameter extracted in the session information, and it is sent to strategy and charging rule functions
The step of unit PCRF specifically:
Pass through the application program api interface function for calling PCRF to provide, it will words parameter is sent to the PCRF.
The embodiment of the present invention provides a kind of WebRTC transfer gateway, wherein WebRTC transfer gateway is independently of agent call
Conversation control function unit/Session Border Controller P-CSCF/SBC setting, the WebRTC transfer gateway include:
Receiving module, the session information of the WebRTC business for receiving the transmission of WebRTC terminal, wherein the session letter
It include the session parameter of WebRTC business in breath；
Sending module is extracted, for extracting the session parameter in the session information, and is sent to strategy and charging regulation
Functional unit PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, described in guaranteeing
The service quality of the WebRTC business of WebRTC terminal.
Further, the WebRTC transfer gateway further include:
Sending module, for sending the instruction message for carrying a default mark to P-CSCF/SBC, the instruction message
In default mark be used to indicate described in P-CSCF/SBC inhibits to send by Rx interface between P-CSCF/SBC and PCRF
The session information of WebRTC business.
Further, the instruction message is session initiation protocol sip message.
Further, the WebRTC transfer gateway is connect by a Rx interface with the PCRF, wherein the extraction hair
Send module specifically:
The session parameter in the session information is extracted, and the session parameter is passed through into WebRTC transfer gateway and PCRF
Between Rx interface be sent to the PCRF.
Further, the extraction sending module specifically:
Pass through the application program api interface function for calling PCRF to provide, it will words parameter is sent to the PCRF.
The beneficial effects of the present invention are:
When above scheme, WebRTC transfer gateway and P-CSCF/SBC are provided separately, when carrying out WebRTC business,
WebRTC transfer gateway can be directly realized by the communication with PCRF, ensure that WebRTC terminal between WebRTC transfer gateway with this
QoS.
Detailed description of the invention
Fig. 1 shows the configuration diagrams that IMS system is accessed when WebRTC transfer gateway and P-CSCF/SBC are closed and set；
Fig. 2 indicates the overview flow chart of the transmission method of the embodiment of the present invention；
Fig. 3 indicates the frame that IMS system is accessed when WebRTC transfer gateway and P-CSCF/SBC set up separately in the embodiment of the present invention
Structure schematic diagram；
Fig. 4 indicates the module diagram of the WebRTC transfer gateway of the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in detail.
When the present invention sets up separately for existing WebRTC transfer gateway and P-CSCF/SBC, WebRTC terminal and WebRTC turn
Draping close between QoS the problem of being difficult to ensure, a kind of transmitting side of service quality session parameter in webpage real time communication is provided
Method and transfer gateway.
Embodiment one
As shown in Fig. 2, in the webpage real time communication of the embodiment of the present invention one service quality session parameter transmission method, answer
For a webpage real time communication WebRTC transfer gateway, wherein the transmission method includes:
Step 100, the session information for the WebRTC business that WebRTC terminal is sent is received, wherein in the session information
It include the session parameter of WebRTC business；
Step 200, the session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function
PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the WebRTC terminal
WebRTC business service quality.
It should be noted that WebRTC business described in the present invention generally refers to WebRTC voice and video telephone business.
It should be noted that WebRTC terminal when carrying out WebRTC business, needs to guarantee that the WebRTC business is smooth
The session information of progress is passed through with the format of JavaScript object notation/extensible markup language (JSON/XML)
Websocket/HTTP agreement is transmitted to WebRTC transfer gateway, and WebRTC transfer gateway extracts meeting from the session information received
Parameter is talked about, which generally includes the information such as the bandwidth of source address, destination address, port numbers and dedicated bearer, the session
Parameter makes PCRF be used to be formed the IP QoS data of authorization and the policy control rule for the WebRTC business, the IP QoS
Data and for the WebRTC business policy control rule just be guarantee terminal QoS service quality control parameter.
It should be noted that the transmission method is applied to the situation that WebRTC transfer gateway and P-CSCF/SBC set up separately, lead to
It crosses WebRTC transfer gateway and the session parameter of the WebRTC terminal in WebRTC business is directly passed to PCRF, so that PCRF root
QoS control parameter is formulated according to the session parameter, ensure that WebRTC terminal to the QoS between WebRTC transfer gateway with this.
Embodiment two
When setting up separately because of WebRTC transfer gateway and P-CSCF/SBC, P-CSCF/SBC itself is provided with Rx interface, P-CSCF/
SBC is communicated by the Rx interface of itself with PCRF, because WebRTC terminal is when carrying out WebRTC business, need to only be turned by WebRTC
Draping pass ensures that QoS, if at this point, the Rx interface that P-CSCF/SBC also passes through itself is communicated with PCRF, so that PCRF
The information processing for carrying out two sides simultaneously will lead to the QoS inaccuracy of WebRTC terminal, therefore in the embodiment of the present invention two, in reality
On the basis of applying example one, the transmission method further include:
It sends and carries the instruction message of a default mark to P-CSCF/SBC, the default mark in the instruction message is used
Inhibit the session that the WebRTC business is sent by the Rx interface between P-CSCF/SBC and PCRF in instruction P-CSCF/SBC
Information.
In the embodiment of the present invention two, WebRTC terminal carry out WebRTC business when, only by WebRTC transfer gateway with
PCRF communication, and P-CSCF/SBC does not pass through Rx interface and is communicated with PCRF, so that PCRF is only according to WebRTC transfer gateway
The session parameter of transmission carries out the formulation of service quality control parameter, ensure that WebRTC terminal and WebRTC transfer gateway with this
Between service quality accuracy.
It should be noted that usually communicated by sip message between WebRTC transfer gateway and P-CSCF/SBC, because
This, above-mentioned instruction message is sip message, is taken in the sip message that P-CSCF/SBC receives the transmission of WebRTC transfer gateway
When no longer being communicated with PCRF by Rx interface with instruction P-CSCF/SBC, P-CSCF/SBC just calls itself controlling mechanism
The Rx interface between P-CSCF/SBC and PCRF is blocked to communicate.
Embodiment three
The transmission method of the embodiment of the present invention three includes:
Step 100, the session information for the WebRTC business that WebRTC terminal is sent is received, wherein in the session information
It include the session parameter of WebRTC business；
Step 200, the session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function
PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the WebRTC terminal
WebRTC business service quality.
Wherein, when sending session parameter to PCRF, the transmission method further include: send and carry a default mark
To P-CSCF/SBC, the default mark in the instruction message is used to indicate P-CSCF/SBC inhibition and passes through P- instruction message
Rx interface between CSCF/SBC and PCRF sends the session information of the WebRTC business.
The transfer mode for a kind of session parameter that the embodiment of the present invention three provides are as follows: the session parameter is passed through into WebRTC
Rx interface between transfer gateway and PCRF is sent to the PCRF.
It should be noted that such transfer mode increases the Rx interface between WebRTC transfer gateway and PCRF, such as Fig. 3
It is shown (only part related to the present invention in Fig. 3 to be illustrated in the present invention, realization and the existing way phase of other parts
Together, it is not described herein), WebRTC terminal is when carrying out WebRTC business, thus it is ensured that the WebRTC business is gone on smoothly
Session information WebRTC transfer gateway is transmitted to by Websocket/HTTP agreement with the format of JSON/XML；WebRTC conversion
Gateway extracts session parameter from the session information received, is then sent to PCRF by the Rx interface of itself, should illustrate
, when sending the message for carrying session parameter to PCRF by Rx interface, WebRTC conversion is also carried in the message
The special identifier of gateway after PCRF receives the message for the special identifier for carrying WebRTC transfer gateway, is awarded according to message formation
The IP QoS data of power and for the WebRTC business policy control rule (transmitted because of PCRF according to WebRTC transfer gateway
Message obtains IP QoS data and ripe for those skilled in the art for the mode of the policy control rule of the WebRTC business
Know, be no longer described in detail herein)；Then obtained these data and rule are further transmitted to PCEF by PCRF
(being not shown in Fig. 3), PCEF establish suitable gate with rule based on these data, guarantees that WebRTC terminal arrives with this
QoS between WebRTC transfer gateway；At the same time, it is taken in the sip message that WebRTC transfer gateway is sent to P-CSCF/SBC
With special mark information, which indicates that P-CSCF/SBC no longer transmits letter by the Rx interface between PCRF
It enables.
It should also be noted that, can normally be answered when terminal carries out voice service (VoLTE) or IMS business based on IMS
With existing PCC mechanism, wherein P-CSCF/SBC is interacted by Rx interface and PCRF, and transmitting accesses net (IP-CAN) to IP
Dynamic strategy/the charge information in user face, because the process is not related to WebRTC transfer gateway, therefore WebRTC transfer gateway with
Rx interface between PCRF does not work.
It should be noted that above-described embodiment three, existing PCC mechanism be optimized, so that carrying out WebRTC industry
When business, directly progress WebRTC transfer gateway and PCRF between data transmit, with this ensure that WebRTC transfer gateway with
QoS between WebRTC terminal.
Example IV
The transmission method of the embodiment of the present invention four includes:
Step 100, the session information for the WebRTC business that WebRTC terminal is sent is received, wherein in the session information
It include the session parameter of WebRTC business；
Step 200, the session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function
PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the WebRTC terminal
WebRTC business service quality.
Wherein, when sending session parameter to PCRF, the transmission method further include: send and carry a default mark
To P-CSCF/SBC, the default mark in the instruction message is used to indicate P-CSCF/SBC inhibition and passes through P- instruction message
Rx interface between CSCF/SBC and PCRF sends the session information of the WebRTC business.
The transfer mode for a kind of session parameter that the embodiment of the present invention four provides are as follows: pass through the application journey for calling PCRF to provide
Sequence api interface function, it will words parameter is sent to the PCRF.
It should be noted that WebRTC terminal is carrying out WebRTC business, thus it is ensured that the WebRTC business in example IV
The session information gone on smoothly is transmitted to WebRTC transfer gateway by Websocket/HTTP agreement with the format of JSON/XML；
WebRTC transfer gateway extracts session parameter from the session information received, then by session parameter and with ensure QoS matter
The related data of amount is encapsulated into the api interface function of PCRF offer, is passed to session parameter in a manner of interface function
PCRF, then PCRF parses the interface function received, session parameter and related data is obtained, so as to form the IP of authorization
QoS data and for the WebRTC business policy control rule；Then PCRF is further by obtained these data and rule
Send PCEF to, PCEF establishes suitable gate with rule based on these data, guarantees WebRTC terminal to WebRTC with this
QoS between transfer gateway；At the same time, spy is carried in the sip message that WebRTC transfer gateway is sent to P-CSCF/SBC
Different identification information, the special mark information indicate that P-CSCF/SBC no longer transmits signaling by the Rx interface between PCRF.
Embodiment five
It is corresponding to be somebody's turn to do with above-mentioned transmission method as shown in figure 4, the embodiment of the present invention five provides a kind of WebRTC transfer gateway
WebRTC transfer gateway is arranged independently of Proxy Call Session Control Function unit/Session Border Controller P-CSCF/SBC,
In, which includes:
Receiving module 10, the session information of the WebRTC business for receiving the transmission of WebRTC terminal, wherein the session
It include the session parameter of WebRTC business in information；
Sending module 20 is extracted, for extracting the session parameter in the session information, and strategy is sent to and is advised with charging
Then functional unit PCRF, so that PCRF carries out the formulation of policy control rule according to the session parameter, described in guaranteeing
The service quality of the WebRTC business of WebRTC terminal.
Specifically, the WebRTC transfer gateway further include:
Sending module 30, for sending the instruction message for carrying a default mark to P-CSCF/SBC, the instruction disappears
Default mark in breath is used to indicate P-CSCF/SBC and inhibits by described in the Rx interface transmission between P-CSCF/SBC and PCRF
The session information of WebRTC business.
Wherein, the instruction message is session initiation protocol sip message.
When WebRTC transfer gateway is connect by a Rx interface with the PCRF, the extraction sending module 20 is specific
Are as follows:
The session parameter in the session information is extracted, and the session parameter is passed through into WebRTC transfer gateway and PCRF
Between Rx interface be sent to the PCRF.
When WebRTC transfer gateway, which does not pass through Rx interface, to be connect with the PCRF, the extraction sending module 20 is specific
Are as follows:
Pass through the application program api interface function for calling PCRF to provide, it will words parameter is sent to the PCRF.
It should be noted that the above embodiment of the present invention, when WebRTC transfer gateway and P-CSCF/SBC set up separately, at end
When end carries out WebRTC business, control WebRTC transfer gateway is directly communicated with PCRF, optimizes existing PCC mechanism,
The QoS between WebRTC terminal and WebRTC transfer gateway is effectively guaranteed in such mode.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (10)
1. the transmission method of service quality session parameter in a kind of webpage real time communication is applied to a webpage real time communication WebRTC
Transfer gateway, and WebRTC transfer gateway is independently of Proxy Call Session Control Function unit/Session Border Controller P-CSCF/
SBC setting, which is characterized in that the transmission method includes:
Receive the session information for the WebRTC business that WebRTC terminal is sent, wherein include WebRTC in the session information
The session parameter of business；
The session parameter in the session information is extracted, and is sent to Policy and Charging Rules Function PCRF, so that PCRF
The formulation of service quality control parameter is carried out, according to the session parameter to guarantee the WebRTC business of the WebRTC terminal
Service quality.
2. transmission method according to claim 1, which is characterized in that the transmission method further include:
It sends and carries the instruction message of a default mark to P-CSCF/SBC, the default mark in the instruction message is for referring to
Show that P-CSCF/SBC inhibits the session information that the WebRTC business is sent by the Rx interface between P-CSCF/SBC and PCRF.
3. transmission method according to claim 2, which is characterized in that the instruction message is that session initiation protocol SIP disappears
Breath.
4. transmission method according to claim 1-3, which is characterized in that described to extract in the session information
Session parameter, and the step of being sent to Policy and Charging Rules Function PCRF specifically:
The session parameter in the session information is extracted, and the session parameter is passed through between WebRTC transfer gateway and PCRF
Rx interface be sent to the PCRF.
5. transmission method according to claim 1-3, which is characterized in that described to extract in the session information
Session parameter, and the step of being sent to Policy and Charging Rules Function PCRF specifically:
Pass through the application program api interface function for calling PCRF to provide, it will words parameter is sent to the PCRF.
6. a kind of WebRTC transfer gateway, which is characterized in that WebRTC transfer gateway is independently of Proxy Call Session Control Function
Unit/Session Border Controller P-CSCF/SBC setting, the WebRTC transfer gateway include:
Receiving module, the session information of the WebRTC business for receiving the transmission of WebRTC terminal, wherein in the session information
It include the session parameter of WebRTC business；
Sending module is extracted, for extracting the session parameter in the session information, and is sent to strategy and charging rule functions
Unit PCRF, so that PCRF carries out the formulation of service quality control parameter according to the session parameter, to guarantee the WebRTC
The service quality of the WebRTC business of terminal.
7. WebRTC transfer gateway according to claim 6, which is characterized in that the WebRTC transfer gateway further include:
Sending module carries the instruction message of a default mark to P-CSCF/SBC, in the instruction message for sending
Default mark is used to indicate P-CSCF/SBC and inhibits to send the WebRTC by the Rx interface between P-CSCF/SBC and PCRF
The session information of business.
8. WebRTC transfer gateway according to claim 7, which is characterized in that the instruction message is session initiation protocol
Sip message.
9. according to the described in any item WebRTC transfer gateways of claim 6-8, which is characterized in that the WebRTC transfer gateway
It is connect by a Rx interface with the PCRF, wherein the extraction sending module specifically:
The session parameter in the session information is extracted, and the session parameter is passed through between WebRTC transfer gateway and PCRF
Rx interface be sent to the PCRF.
10. according to the described in any item WebRTC transfer gateways of claim 6-8, which is characterized in that the extraction sending module
Specifically:
Pass through the application program api interface function for calling PCRF to provide, it will words parameter is sent to the PCRF.
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