CN1878388A - Method for confirming data transmission service quality in communication network - Google Patents
Method for confirming data transmission service quality in communication network Download PDFInfo
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- CN1878388A CN1878388A CNA2005100352177A CN200510035217A CN1878388A CN 1878388 A CN1878388 A CN 1878388A CN A2005100352177 A CNA2005100352177 A CN A2005100352177A CN 200510035217 A CN200510035217 A CN 200510035217A CN 1878388 A CN1878388 A CN 1878388A
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Abstract
The invention relates to a method for confirming the quality of data transmission service in the communication network, to improve the utilization efficiency of transmission resource. Wherein, when deciding the QoS, using the request message of UE to the QoS, as well as using the network information or operation information as user contrast strategy information, service strategy information, access type, position strategy information and access network local service strategy. Based on IMS or similar network, said network information or operation information can be obtained by P-CSCF to be sent to the PDF to be decided, or obtained by P-CSCF to be projected into uniform propriety according to the local set, to be sent to the PDF, or obtained and stored by S-CSCF, and modify the SDP description when user initializes the service request or reject the service request.
Description
Technical field
The present invention relates to service quality realization technology, particularly the service quality implementation method in internet protocol multimedia subsystem (IPMultimedia Subsystem is called for short " IMS ") and the similar network.
Background technology
IMS is third generation partner program (3rd Generation Partnership Project, abbreviation " 3GPP ") IP Multimedia System in the WCDMA network of R5/R6 standard definition, be that the 3G mobile network is realized packet voice and grouped data, the unified multimedia service and the objective network of application are provided.IMS adopts the bearer path of IP packet domain as its control signaling and media delivery, adopt conversation initialized protocol (Session Initation Protocol, abbreviation " SIP ") agreement has realized that as call control signalling the three that service management, session control and carrying insert separates.
Major function entity among the IMS comprises:
CSCF (Call Session Control Function is called for short " CSCF ") is used for realizing functions such as control user registration, session control;
Home signature user server (Home Subscriber Server is called for short " HSS ") is used to manage concentratedly user contracting data;
Application server (Application Server is called for short " AS ") is used to provide miscellaneous service logic control function;
Strategy decision function (Policy Decision Function is called for short " PDF ") is used for service quality (Quality of Service is called for short " QOS ") management.
For above-mentioned PDF, specifically, the user is by current location agent node Proxy Call Session Control Function (Proxy-CSCF, be called for short " P-CSCF ") access IMS, QOS authorization requests and approval are initiated request by P-CSCF to PDF, and carry out strategic decision-making by PDF, and cooperation ggsn (Gateway GPRS Support Node, abbreviation " GGSN ") finishes the strategy execution process, session and professional the triggering are controlled and are then finished by the home domain service node service call conversation control function (Serving CSCF, abbreviation " S-CSCF ") of its registered place with the business control of AS is mutual.
QOS functional requirement among the IMS is: support QOS signaling and resource allocation end to end, in other words, session is set up in the process, if professional requirement is higher than best-effort (doing one's best) to QOS, for example be reliable transmit (Assured Forwarding), then the IMS system must support QOS indication end to end, negotiation and resource allocation.
In each service node of 3G (Third Generation) Moblie (The Third Generation is called for short " 3G ") network,, need to adopt conversation-based mechanism to the communication of all group modes.Employing mechanism should and universal mobile telecommunications system (Universal Mobile Telecommunications System, be called for short " UMTS ") QOS mechanism closely related, mandatory attribute is at a plurality of QOS streams on each address.
When specific implementation ensures at QOS end to end, IMS has described a kind of the support based on the local policy of business local policy (the Service Based Local Policy based on business, abbreviation " SBLP ") mechanism, the policy control of carrying out resource authorization, distribution, use at session.The network element that this machine-processed basic principle relates to as shown in Figure 1.
As shown in Figure 1, the major function of each network element is:
AF (Application Function, application function): the application of request bearing resource is provided, for example, and the resource in UMTS PS/GPRS territory, the application layer parameter maps that QOS is relevant is set up information to the strategy of Gq interface and is sent to PDF, for example, P-CSCF.
PDF: be positioned at internetworking agreement (Internet Protocol, be called for short " IP ") bearing bed, use standard I P mechanism to carry out, based on the policy decision point of the local policy of business.PDF obtains dialogue-based and relations medium by Gq interface to P-CSCF, makes a strategic decision then, and notifies GGSN with the result of decision by Go interface.
IP BS (bearer service, Bearer Service) Manager: be positioned at the IP bearing bed, use standard I P mechanism management IP bearer service.
Translation/Mapping function (conversion/mapping function): between IP bearer service and IMS access bearer business, provide the function of mechanism and parameter intercommunication.
Physical BS Manager (physical layer BS manager): the manager of the actual physical resources of bearer service correspondence.For example, the bearer management of the UMTS on the GGSN/UE.
Below, further specify its basic principle with reference to Fig. 2, wherein, the mark in the circle is represented corresponding step.
At step 1a: reliable transmit (Assured Forwarding) authorizes Token (token) to the PDF request.
Give the mandate Token that returns distribution at step 1b:PDF.
Set up in the session of using at step 1:AF and will authorize Token to pass to the subscriber equipment (User Equipment, abbreviation " UE ") of terminal in the process.
Utilize mandate Token at step 2:UE, reserve the QOS resource to Policy Enforcement Point (Policy Enforcement Point is called for short " PEP ") request.
At step 3:PEP to the PDF request strategy.
Ask the relevant business information of QOS at step 4:PDF to AF.This step is an option, when PDF has obtained this information, and can.
Return the relevant business information of QOS at step 5:AF to PDF.This step is an option, when PDF has obtained this information, and can.
The relevant business information of the QOS that keeps that return according to AF at step 6:PDF or previous is made a strategic decision.Wherein, at present decision information only comprises the bandwidth information, media type information etc. of session.
At last, carry out the result of decision of PDF at step 7:PEP.
Handling principle in the IMS network of 3GPP2 definition is similar to 3GPP, and difference is that step 1a and the step 1b among Fig. 2 do not exist, and authorize Token directly to be generated by AF, and step 4,5 is necessary.The content of the strategic decision-making of supporting is same as 3GPP, only comprises the bandwidth information, media type information of session etc. at present.
Present QOS strategy is unfavorable for operator's supervising the network, for different users provides different QOS services.
Below with reference to Fig. 3 and Fig. 4, the Calling Side of description among the 3GPP TS 23.228 and the main process of callee side are described respectively.At first, describe Calling Side QOS and handle with reference to Fig. 3.
As can be seen from Fig. 3, P-CSCF is receiving band Session Description Protocol (Session DescriptionProtocol, abbreviation " SDP ") after " 183 Progress " message, can authorize Token to the PDF request, after the response that obtains PDF, the 1XX of the mandate Token in the response by forward pass passed to the calling terminal user.When Token was authorized in request, P-CSCF passed to the information among the SDP that the information source of PDF comprises in sip message.Therefore, it is very limited to can be used in the information of strategic decision-making.
Then referring to Fig. 4, receiving " SIP Invite (request) " message of band SDP as P-CSCF after, can authorize Token to PDF request, after the response that obtains PDF, " SIP Invite (the request) " message by forward pass of the mandate Token in the response be passed to the terminal called user.Same, when Token is authorized in request, the information among the SDP that the information source that P-CSCF passes to PDF comprises in sip message.Therefore, it is very limited to can be used in the information of strategic decision-making.
Next, the scheme that defines among the X.S0013 SBBC that illustrates again at 3GPP2, the information that this scheme can be used in strategic decision-making is same as 3GPP.
As shown in Figure 5, in the processing procedure of Calling Side QOS, P-CSCF preserves the information among the SDP in the sip message after " 183Progress " message of receiving band SDP, while assigns authorized Token, and will authorize Token to pass to the calling terminal user by the 1XX of forward pass.When receiving the request QOS parameter of PDF, P-CSCF passes to the information of information source in the SDP that sip message comprises of PDF.Therefore, it is very limited to can be used in the information of strategic decision-making.
Fig. 6 illustrates the QOS processing procedure of callee side, wherein, P-CSCF is after " SIPInvite (request) " message of receiving band SDP, preserve the information among the SDP in the sip message, while assigns authorized Token, and will authorize Token to pass to the terminal called user by " SIP Invite (request) " message of forward pass.When receiving the request QOS parameter of PDF, same, P-CSCF passes to the information among the SDP of information source in sip message of PDF.Therefore, it is very limited to can be used in the information of strategic decision-making.
This shows, in above-mentioned two kinds of prior aries, the information that PDF is used for strategic decision-making is mainly derived from P-CSCF, this information is very limited, the strategy of corresponding decision-making is also very limited, the strategy of supporting also only is based on the strategy of the QOS resource information of conversation request, can not support based on the signatory grade of user, based on the grade of service, based on user access type, based on the current on-position of user, based on the strategy of information such as user attaching territory.
Summary of the invention
In view of this, main purpose of the present invention is to provide method for confirming data transmission service quality in a kind of communication network, makes the utilization ratio of transfer resource be improved.
For achieving the above object, the invention provides method for confirming data transmission service quality in a kind of communication network, comprise core net in this communication network, and by service access in this communication network of the network element control in the core net and bearing bed resource allocation, described method comprises following steps at least:
Network element in the described core net carries out the decision-making of service quality according to subscriber equipment jointly to the solicited message of service quality and the network side information of obtaining in advance or operation information.
Wherein, described network is an internet protocol multimedia subsystem.
In addition, the network side information of described preset kind or operation information are the signatory class policy informations of user.
In addition, described method comprises following steps:
When described user equipment registration, service call conversation control function is to the CAMEL-Subscription-Information of the server requests download user of preserving user signing contract information;
The described server of preserving user signing contract information returns response message to described service call conversation control function, wherein comprises the signatory class policy information of the described user who is used for the service quality decision-making;
Described service call conversation control function passes to strategy decision function with the signatory class policy information of the described user who receives through Proxy Call Session Control Function by the conversation launch protocol message of expansion;
Described strategy decision function is according to this locality configuration, the signatory class policy information of user that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
In addition, the described server of preserving user signing contract information can be a home signature user server, or the storage server of independent user subscribed services quality policy information.
In addition, described method comprises following steps:
When described user equipment registration, service call conversation control function is preserved the signatory class policy information of the user who downloads;
During described user equipment start service request, described service call conversation control function is revised Session Description Protocol field or refusal service request in the conversation launch protocol message according to the signatory class policy information of the described user who preserves.
In addition, described method comprises following steps:
Strategy decision function is when the processing policy decision requests, and Proxy Call Session Control Function passes to this strategy decision function with user ID;
Described strategy decision function is according to the user ID of receiving, directly from home signature user server, or the storage server of independent user subscribed services quality policy information, and the download user class policy information of contracting;
Described strategy decision function is according to this locality configuration, the signatory class policy information of user that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
In addition, the network side information of described preset kind or operation information are request corresponding service class policy informations.
In addition, described method comprises following steps:
Application server is when receiving service request, judge whether the user exists the service class policy information relevant with service quality, if then in response to service request, by the conversation launch protocol message of expansion, this user's service class policy information is sent to service call conversation control function;
After described service call conversation control function is received described user's service class policy information, its Session initiation Protocol response message by expansion is passed to strategy decision function through Proxy Call Session Control Function;
Described strategy decision function is according to this locality configuration, the service class policy information that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
In addition, described method comprises following steps:
Application server is when receiving service request, judge whether the user exists the service class policy information relevant with service quality, if then in response to service request, by the conversation launch protocol message of expansion, this user's service class policy information is sent to Proxy Call Session Control Function through service call conversation control function;
Described Proxy Call Session Control Function disposes according to this locality, converts the described service class policy information of receiving to unified priority, transformation result is passed to described strategy decision function again;
Described strategy decision function after according to this locality configuration, the conversion of being obtained the service class policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
In addition, described method comprises following steps:
Strategy decision function is directly obtained the service class policy information from application server when the processing policy decision requests.
In addition, described service class policy information can be based on the grade of service.
In addition, the network side information of described preset kind or operation information are access style and position class policy information.
In addition, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
Described Proxy Call Session Control Function sends to strategy decision function with the access style of this subscriber equipment and position class policy information when receiving the service request of described subscriber equipment;
Described strategy decision function is according to this locality configuration, the access style that is obtained and position class policy information and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
In addition, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
Described Proxy Call Session Control Function sends to service call conversation control function with access style and the position class policy information that obtains;
Described service call conversation control function is preserved access style and the position class policy information of receiving;
When described service call conversation control function is received from the service request of described subscriber equipment, according to the access style and the position class policy information of this subscriber equipment of being preserved, directly revise Session Description Protocol field or refusal service request in the conversation launch protocol message.
In addition, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
When receiving the service request of described subscriber equipment, described Proxy Call Session Control Function disposes according to this locality, convert the access style and the position class policy information of this subscriber equipment of preserving to unified priority, again transformation result is passed to described strategy decision function;
Described strategy decision function after according to this locality configuration, the conversion of being obtained access style and position class policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
In addition, the network side information of described preset kind or operation information are visited network local service policy informations.
In addition, described method comprises following steps:
Proxy Call Session Control Function obtains visited network local service policy information from the login request message of receiving, and preserves;
Described Proxy Call Session Control Function sends to strategy decision function with the visited network local service policy information of this subscriber equipment when receiving the service request of described subscriber equipment;
Described strategy decision function is according to this locality configuration, the visited network local service policy information that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
In addition, described method comprises following steps:
Proxy Call Session Control Function obtains visited network local service policy information from the login request message of receiving, and preserves;
Described Proxy Call Session Control Function converts the visited network local service policy information of this subscriber equipment to unified priority when receiving the service request of described subscriber equipment, transformation result is passed to described strategy decision function again;
Described strategy decision function after according to this locality configuration, the conversion of being obtained visited network local service policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
In addition, described visited network local service policy information can be based on the user attaching territory.
In addition, described network can be a next generation network.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, decision-making during QoS except using the solicited message of UE to QoS, also use network side information or operation information, comprised user contract class policy information, service class policy information, access style and position class policy information and visited network local service policy information etc.
At IMS and similar network, after can being obtained by P-CSCF, above-mentioned network side information or operation information transfer to the PDF decision-making, be mapped to unified priority according to this locality configuration after also can obtaining and transfer to the PDF decision-making again by P-CSCF, after can also obtaining and preserve by S-CSCF, when the user initiates service request, directly revise SDP and describe or refuse service request according to the information of preserving.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly adopts after the technical scheme of the present invention, and under the prerequisite that does not increase any transmission bandwidth, each user obtains to promote to the whole satisfaction of transmission.
Because used network side information or operation information,, make operator to provide service for sorted users more neatly so can support more QOS usage policy.Include but not limited to following situation:
Support is based on the QOS strategy of signatory class, as the priority of contracting based on the user;
Support is based on the QOS strategy of service class, as based on service priority;
Support is based on the QOS strategy that inserts class, as based on user access type, based on the current on-position of user;
Support is based on the strategy in territory, P-CSCF place, as the strategy based on information such as user attaching territories.
Several policy information securing mechanisms that propose according to the present invention can also the more QOS strategy of subsequent expansion support.
Description of drawings
Fig. 1 is the related schematic network structure of SBLP mechanism among the IMS;
Fig. 2 is the SBLP mechanism principle figure that defines among the 3GPP;
Fig. 3 is the Calling Side QoS handling process schematic diagram of describing among the 3GPP TS 23.228 of prior art;
Fig. 4 is the callee side QoS handling process schematic diagram of describing among the 3GPP TS 23.228 of prior art;
Fig. 5 is the Calling Side QoS handling process schematic diagram of describing among the 3GPP2 X.S0013 SBBC of prior art;
Fig. 6 is the callee side QoS handling process schematic diagram of describing among the 3GPP2 X.S0013 SBBC of prior art;
Fig. 7 is according to the Network Element Function of first embodiment of the invention and interface expansion schematic diagram;
Fig. 8 is according to the Network Element Function of second embodiment of the invention and interface expansion schematic diagram;
Fig. 9 is according to the Network Element Function of third embodiment of the invention and interface expansion schematic diagram;
Figure 10 is according to the Network Element Function of fourth embodiment of the invention and interface expansion schematic diagram;
Figure 11 is Network Element Function and the interface expansion schematic diagram that combines the present invention first to four embodiment;
Figure 12 is the schematic flow sheet that obtains according to the signatory class policy information of user of first embodiment of the invention;
Figure 13 is P-CSCF directly obtains the signatory class policy information of user from HSS Network Element Function and an interface expansion schematic diagram;
Figure 14 is directly Network Element Function when HSS obtains user signing contract information and an interface expansion schematic diagram of PDF;
Figure 15 is directly Network Element Function and the interface expansion schematic diagram when the separate server of similar HSS function obtains user signing contract information of PDF;
Figure 16 is directly Network Element Function when AS obtains service priority information and an interface expansion schematic diagram of PDF.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Basic principle of the present invention is described earlier.During the use of PDF in IMS network and similar network, except the local policy SBLP mechanism based on business of support based on the QOS of SIP session, support more strategic decision-making, include but not limited to following strategy: the signatory class of user relevant strategy, for example can be based on the signatory grade of user; The service class strategy for example can be based on the grade of service; Insert the class strategy, for example can be based on user access type, based on information such as the current on-positions of user; Visited network local service strategy for example can be based on user's home domain, specifically, when the user roams into Tianjin (visited network), the network of Tianjin can to the user that belongs to Shanghai with belong to the user of Pekinese and give different priority.
The information of the strategic decision-making of IMS network support expansion is obtained, strategic decision-making triggering and execution mechanism are as follows:
The realization mechanism of the signatory class strategy of user is for example based on the realization mechanism of the strategy of User Priority.Subscription data is kept at HSS, is responsible for obtaining and passing to PDF by P-CSCF, the decision-making of PDF implementation strategy, and information access process is:
During registration, S-CSCF asks the download user CAMEL-Subscription-Information by Cx interface to HSS, carry QOS policy-related (noun) information in the message that HSS returns, include but not limited to User Priority, S-CSCF is after this information of acquisition, sip response message (Mw can adopt the mode of expanding header field, the expansion of similar service-route header field) by expansion passes to P-CSCF.This scheme can have two kinds of implementations:
First kind of implementation: P-CSCF directly provides similar Cx interface visit HSS, and P-CSCF obtains the signatory relevant information of user by this interface inquiry when succeeding in registration, include but not limited to User Priority.
Second kind of implementation: P-CSCF directly provides the storage server of the signatory QOS policy information of similar Cx interface visit independent user, P-CSCF is when succeeding in registration, obtain the signatory relevant information of user by this interface inquiry, include but not limited to User Priority.
Can at S-CSCF when registering, preserve the signatory QOS strategy relevant information of downloading in addition, when service request is handled, direct with the parameter modification or the refusal service request of its mapping to SDP.
Can directly obtain by PDF in addition and take the signatory relevant information in family, two kinds of implementations are specifically arranged again:
Implementation one: PDF is when the processing policy decision requests, P-CSCF passes to PDF with user totem information, PDF is by the extended access HSS (as shown in figure 14) of this information and similar Cx interface, and the signatory relevant information of user is obtained in inquiry, includes but not limited to User Priority.
Implementation two: PDF is when the processing policy decision requests, P-CSCF passes to PDF with user totem information, PDF is by the storage server (as shown in figure 15) of the signatory QOS policy information of extended access independent user of this information and similar Cx interface, relevant information is obtained in inquiry, includes but not limited to User Priority.
The realization mechanism of service class strategy is for example based on the realization mechanism of the strategy of call business priority.Priority provides (dispose during as the business application, dynamically adjust during perhaps professional the use) by AS (application server), is read SIP interface content and is passed to PDF by Gq by P-CSCF, the decision-making of PDF implementation strategy.Information access process can have two kinds:
First kind of information access process: during service request, AS judges that there is the QOS priority policy in the user, SIP (can adopt the mode of expansion header field by the ISC interface expansion, the expansion of similar service-route header field), this information is sent to S-CSCF in request responding, S-CSCF is after this information of acquisition, by the sip response message (Mw of expansion, can adopt the mode of expansion header field, the expansion of similar service-route header field) pass to P-CSCF.
Second kind of information access process: priority is provided by application server AS and (disposes during as the business application, dynamically adjust during perhaps professional the use), read SIP interface content by P-CSCF, it is mapped to unified priority and passes to PDF by Gq, the decision-making of PDF implementation strategy.
In addition, PDF also can directly obtain service priority, specifically, priority is provided by application server AS and (disposes during as the business application, dynamically adjust during perhaps professional the use), provide directly and the expansion interface IF4 (as shown in figure 16) of AS by PDF, its priority is passed to PDF by this interface, the decision-making of PDF implementation strategy.
Insert the realization mechanism of class strategy, for example based on user access type, based on the realization mechanism of the strategy of information such as the current on-position of user.Three kinds of realization mechanisms specifically can be arranged:
Realization mechanism one: access information is provided by special network element, during the P-CSCF registration, particular interface by expansion is inquired about the special net element of preserving user accessing information, obtain user's relevant information and the preservation of dynamic access, when the user initiates service request, pass to PDF by Gq interface, the decision-making of PDF implementation strategy.
Realization mechanism two: access information is provided by special network element, during the P-CSCF registration, by the special net element that user accessing information is preserved in the particular interface inquiry of expansion, obtain the relevant information of user's dynamic access and pass to S-CSCF, S-CSCF preserves this information.When the user initiated service request, S-CSCF directly revised SDP and describes according to the information of preserving.
Realization mechanism three: access information is provided by special network element, during the P-CSCF registration, particular interface by expansion is inquired about the special net element of preserving user accessing information, obtain user's relevant information and the preservation of dynamic access, when the user initiates service request, P-CSCF is mapped to unified priority according to local operator collocation strategy with it, passes to PDF by Gq interface, the decision-making of PDF implementation strategy.
The realization mechanism of visited network territory local policy is as the realization mechanism based on the strategy in user attaching territory.Two kinds of specific implementation mechanism are arranged:
The relevant information that realization mechanism one: P-CSCF obtains from login request message (as the user attaching domain information) is also preserved, and when the user initiates service request, passes to PDF by Gq interface, the decision-making of PDF implementation strategy.
The relevant information that realization mechanism two: P-CSCF obtains from login request message (as the user attaching domain information) is also preserved, when the user initiates service request, this information mapping is become other policy information (as the user attaching domain information is mapped to user priority information), pass to PDF by Gq interface, the decision-making of PDF implementation strategy.
First embodiment: user's class of contracting,
Present embodiment adopts the signatory class policy information of user.In other words, when resource-constrained, network can guarantee preferentially that the QOS of user that user gradation is high or high-priority service authorizes, under certain condition, when reaching certain ratio such as resource utilization, directly the user of refusal low priority or the resource authorization of low priority traffice are seized low priority user or professional resource to the user or the business support of specific class.
In the present embodiment, Network Element Function in the original network and interface are expanded as shown in Figure 7.
The interface of the expansion among Fig. 7 comprises:
(1) based on the Mw of Session Initiation Protocol, expansion is supported in and transmits the relevant information of QOS policy control between server;
(2) based on the Cx interface of diameter interface, expansion is supported in the relevant information of QOS policy control of transmitting;
(3) based on the Gq interface of diameter interface, expansion is supported in the relevant information of QOS policy control of transmitting.
Network Element Function has following expansion:
(1) P-CSCF supports to obtain QOS strategy related expanding information, and when supporting registration, obtain S-CSCF from Mw and transmit the information of coming, and for user's preservation with use this information;
(2) S-CSCF supports to download QOS policy-related (noun) CAMEL-Subscription-Information from HSS, and in registration process, passes to P-CSCF by Mw;
(3) HSS supports to download QOS policy-related (noun) CAMEL-Subscription-Information and gives S-CSCF;
(5) during the request of PDF supporting business, obtain the information that can be used for strategic decision-making of expansion, and carry out the corresponding strategies decision-making by Gq interface.
Need to prove, in each accompanying drawing of the present invention, the interface of representing with solid line is on all four with prior art, and the interface that dots is to have carried out some expansions on the basis of existing technology, for example increase new message, perhaps the field of original message has been carried out expansion or the like.
Next with reference to Figure 12, the acquiring way of the signatory class policy information of user in the present embodiment is described
(a) when registration,, after HSS receives the request of S-CSCF download user data, carry the information of signatory QOS strategy of being correlated with in the response of returning and give S-CSCF in the Cx interface expansion.In the sip message of interfaces such as Gm, Mw, expand, support the signatory class policy information that S-CSCF will obtain from HSS,, pass to P-CSCF such as User Priority, user QOS parameter (as maximum bandwidth).
The extension point that relates to comprises:
(1) after step 19.Cx:S-CSCF registration notification:HSS receives request, if judge to have disposed and need the special special QOS control information of Access Network, as User Priority, in the information that HSS returns, increase property value (Attribute Value Pair is called for short " AVP ") described this information.
(2) step 20.～21.200OK: in the 200OK response of returning SIP REGISTER message, increase and carry the special QOS control information of Access Network, as User Priority.After P-CSCF receives step 21.200OK message, preserve the special QOS control information of Access Network in the expansion header field, and delete this information, be transmitted to UE then.
One of ordinary skill in the art can be understood, and the invention is not restricted to above-mentioned acquiring way.For example, the P-CSCF expansion provides similar Cx interface IF1, directly obtains to the HSS inquiry, referring to Figure 13; Perhaps the P-CSCF expansion provides similar Cx interface IF1, directly obtains to the server lookup of preserving the signatory QOS strategic decision-making relevant information of user of similar HSS.
To the expansion of Network Element Function in the present embodiment and interface, reach obtaining of information and be illustrated above, next the processing procedure of special strategic decision-making request and execution is described.
Calling Side QOS processing procedure at first is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " 183Progress " message of receiving band SDP, P-CSCF passes to the calling terminal user with the 1XX of the mandate Token in the response by forward pass after the response that obtains PDF.
Need to prove that when Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, also comprises the signatory class policy information of user.At this moment, P-CSCF can judge whether there is other relevant QOS strategic decision-making information among the SDP.In the present embodiment, whether obtained user-dependent CAMEL-Subscription-Information when judging registration, as user priority information.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that in the present embodiment, the information that can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
Then, callee side QOS processing procedure is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " SIP Invite (request) " message of receiving band SDP, after the response that obtains PDF, " SIPInvite (the request) " message by forward pass of the mandate Token in responding is passed to the terminal called user.
When Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, and at this moment, P-CSCF also can judge whether to exist other relevant QOS strategic decision-making information.In the signatory class methods of the user of present embodiment, whether obtained user-dependent CAMEL-Subscription-Information when judging registration, as user priority information.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that the information that present embodiment can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
Second embodiment: current request corresponding service class policy information
Present embodiment adopts current request corresponding service class policy information.Identical with the signatory class policy information of above-mentioned user, be meant when resource-constrained, network can guarantee preferentially that the QOS of user that user gradation is high or high-priority service authorizes, under certain condition, when reaching certain ratio, directly refuse the user of low priority or the resource authorization of low priority traffice such as resource utilization.Low priority user or professional resource are seized in user or business support to specific class.
In the present embodiment, Network Element Function in the original network and interface are expanded as shown in Figure 8.
The interface of the expansion among Fig. 8 comprises:
(1) based on the ISC interface of Session Initiation Protocol, expansion is supported in and transmits the relevant information of QOS policy control between server;
(2) based on the Mw of Session Initiation Protocol, expansion is supported in and transmits the relevant information of QOS policy control between server;
(3) based on the Gq interface of diameter interface, expansion is supported in the relevant information of QOS policy control of transmitting.
Network Element Function has following expansion:
(1) the tactful related expanding information of QOS is obtained in the P-CSCF support, during the supporting business request, obtains AS from Mw and transmits the information of coming through S-CSCF, and be this session preservation and use;
(2) during the request of S-CSCF supporting business, the QOS policy-related (noun) business information that transparent transmission AS sends is to P-CSCF;
(3) during the request of AS supporting business, transmit QOS policy-related (noun) business information by ISC interface and give P-CSCF;
(4) during the request of PDF supporting business, obtain the information that can be used for strategic decision-making of expansion, and carry out the corresponding strategies decision-making by Gq interface.
In the current request corresponding service class policy information method of present embodiment, acquiring way can by but be not limited to following mode and realize:
(a) when handling request, in the sip message of interfaces such as Gm, Mw, ISC, expand, support to transmit the visited network information available, for example professional level earlier.
To the expansion of Network Element Function in the present embodiment and interface, reach obtaining of information and be illustrated above, next the processing procedure of special strategic decision-making request and execution is described.
Calling Side QOS processing procedure at first is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " 183Progress " message of receiving band SDP, P-CSCF passes to the calling terminal user with the 1XX of the mandate Token in the response by forward pass after the response that obtains PDF.
Need to prove that when Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, is different from first embodiment, also comprises current request corresponding service class policy information information in the information of PDF.At this moment, P-CSCF can judge whether there is other relevant QOS strategic decision-making information among the SDP.In the present embodiment, whether obtained professional relevant strategic decision-making information when judging registration, as the extend information of service priority etc.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that in the present embodiment, the information that can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
Then, callee side QOS processing procedure is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " SIP Invite (request) " message of receiving band SDP, after the response that obtains PDF, " SIPInvite (the request) " message by forward pass of the mandate Token in responding is passed to the terminal called user.
When Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, and at this moment, P-CSCF also can judge whether to exist other relevant QOS strategic decision-making information.In the current request corresponding service class policy information method of present embodiment, whether obtained professional relevant strategic decision-making information when judging registration, as the extend information of service priority etc.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that the information that present embodiment can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
The 3rd embodiment: current access style and position class policy information
Adopt current access style and position class policy information in the present embodiment.Specifically, be meant when the access style of known users that network can be controlled the resource that the user uses according to the ability that access style can reach, and perhaps controls the allocation strategy of QOS resource according to access style.When the current location of known users, network can be controlled the strategy that user QOS resource is used according to user's current location.
In the present embodiment, Network Element Function in the original network and interface are expanded as shown in Figure 9.
The special net element of the expansion among Fig. 9:
(1) Network Element of Access Info (access information network element, can be described as the 3rd network element among the present invention again), access information is provided, comprises descriptions such as access style and accessing position information, for example by IP address lookup access style or current accessing position information.
The interface of expansion comprises:
(1) based on the Gq interface of diameter interface, expansion is supported in the relevant information of QOS policy control of transmitting;
(2) the interface IF2 between the network element Network Element of Access Info of expansion P-CSCF/PDF and expansion supports to transmit information such as user access type or current on-position.
The expansion of Network Element Function:
(1) P-CSCF supports to obtain QOS strategy related expanding information, when supporting registration or session, obtains information by IF2, and is that this information is preserved and used in user or session;
(2) during the request of PDF supporting business, obtain the information that can be used for strategic decision-making of expansion, and carry out the corresponding strategies decision-making by Gq interface;
(3) expansion network element Network Element of Access Info supports to give P-CSCF by IF2 interface transmission access style and on-position relevant information.
In the current access style and position class policy information method of present embodiment, acquiring way can by but be not limited to following mode and realize:
(a) when the user registers, by the expansion interface IF2 of special net element in P-CSCF and the network (having the network element that user's access address distributes or authenticates), relevant information is obtained in inquiry, is used for this user's Business Processing.
Perhaps, in another embodiment of the present invention, can obtain in the following manner:
PDF directly expands the IF3 interface that similar IF2 interface is provided, and directly obtains to Network Element ofAccess Info inquiry.
To the expansion of Network Element Function in the present embodiment and interface, reach obtaining of information and be illustrated above, next the processing procedure of special strategic decision-making request and execution is described.
Calling Side QOS processing procedure at first is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " 183Progress " message of receiving band SDP, P-CSCF passes to the calling terminal user with the 1XX of the mandate Token in the response by forward pass after the response that obtains PDF.
Need to prove that when Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises.Be different from first and second embodiment, also comprise current access style and position class policy information information in this PDF information.At this moment, P-CSCF can judge whether there is other relevant QOS strategic decision-making information among the SDP.Whether obtained the user when in the present embodiment, judging registration and inserted relevant policy information, the information relevant with the position as user access type.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that in the present embodiment, the information that can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
Then, callee side QOS processing procedure is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " SIP Invite (request) " message of receiving band SDP, after the response that obtains PDF, " SIPInvite (the request) " message by forward pass of the mandate Token in responding is passed to the terminal called user.
When Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, and at this moment, P-CSCF also can judge whether to exist other relevant QOS strategic decision-making information.In the current access style and position class policy information method of present embodiment, whether obtained the user when judging registration and inserted relevant policy information, the information relevant with the position as user access type.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that the information that present embodiment can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
The 4th embodiment: visited network local service policy information
Present embodiment adopts visited network local service policy information.Specifically, be meant that when the home domain of known users, network can dispose the usage policy of the QOS resource in different territories.
In the present embodiment, Network Element Function in the original network and interface are expanded as shown in figure 10.
The interface of the expansion among Figure 10 comprises:
(1) based on the Gq interface of diameter interface, expansion is supported in the relevant information of QOS policy control of transmitting.
The expansion of Network Element Function:
(1) P-CSCF supports to obtain QOS strategy related expanding information, supports local configuration, uses the strategic decision-making of extend information;
(2) during the request of PDF supporting business, obtain the information that can be used for strategic decision-making of expansion, and carry out the corresponding strategies decision-making by Gq interface.
In the visited network local service policy information of present embodiment, acquiring way can by but be not limited to following mode and realize:
(a) when the user registers or manages business request, P-CSCF is by analyzing the information of the non-SDP in the sip message, and the description in user attaching territory is made a strategic decision during such as registration.
To the expansion of Network Element Function in the present embodiment and interface, reach obtaining of information and be illustrated above, next the processing procedure of special strategic decision-making request and execution is described.
Calling Side QOS processing procedure at first is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " 183Progress " message of receiving band SDP, P-CSCF passes to the calling terminal user with the 1XX of the mandate Token in the response by forward pass after the response that obtains PDF.
Need to prove, when Token is authorized in request, the information that P-CSCF passes to PDF is not limited to the information among the SDP that sip message comprises, in the visited network local service policy information of present embodiment, also comprises visited network local service policy information information.At this moment, P-CSCF can judge whether there is other relevant QOS strategic decision-making information among the SDP.In the present embodiment, the strategy that uses according to this locality configuration.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that in the present embodiment, the information that can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
Then, callee side QOS processing procedure is described.This process mainly comprises following steps:
P-CSCF can authorize Token to PDF request after " SIP Invite (request) " message of receiving band SDP, after the response that obtains PDF, " SIPInvite (the request) " message by forward pass of the mandate Token in responding is passed to the terminal called user.
When Token was authorized in request, the information that P-CSCF passes to PDF was not limited to the information among the SDP that sip message comprises, and at this moment, P-CSCF also can judge whether to exist other relevant QOS strategic decision-making information.In the visited network local service policy information of present embodiment, whether obtained user-dependent CAMEL-Subscription-Information when judging registration, according to the strategy of this locality configuration use.
After judge to need carrying out special strategy, then P-CSCF notifies PDF with relevant information, after PDF gets access to relevant information, can whether carry out special strategic decision-making according to local configuration information inspection, finish authorization decision after, the result is returned to P-CSCF.This shows that the information that present embodiment can be used in strategic decision-making has obtained expansion, the strategy of decision-making is also abundanter.
For can clearly the present invention will be described, above-mentioned first to the 4th embodiment in actual applications, can comprehensively use above four embodiment respectively at obtaining of four kinds of policy informations, obtains four kinds of policy informations simultaneously, and carries out the QoS decision-making in view of the above.Figure 11 shows Network Element Function and the interface spread scenarios after carrying out comprehensively to above four embodiment, and the concrete obtain manner of four kinds of policy informations is identical with above-mentioned four embodiment.
More than first to fourth embodiment according to the present invention is described, those of ordinary skill in the art can understand, the strategic decision-making relevant information passes to PDF by different approaches in the such scheme, comprehensively provides strategy by PDF, and the scheme of implementation strategy point can be selected.For instance, method for the signatory class policy information of the user of first embodiment, and the method for the current request corresponding service class policy information information of second embodiment, User Priority and service priority can be unified in P-CSCF according to local configuration transitions after, be handed down to PDF with unified priority again and carry out.
For the current intervention type of the 3rd embodiment and the method for position class information, can carry out by S-CSCF, pass to the decision-making of PDF implementation strategy after also can being mapped to other strategy by P-CSCF.(a) S-CSCF directly revises the QOS parameter among the SDP or refuses session according to relevant information, such as the QOS strategy based on access style, based on the QOS strategy of the current on-position of user.P-CSCF passes to S-CSCF with this information after obtaining access style or accessing position information, S-CSCF handles in conjunction with the retrievable configuration information in this locality.(b) after P-CSCF obtains this category information, become other policy information (as priority) to be handed down to the decision-making of PDF implementation strategy such information mapping.
And for the method for the visited network local service policy information category information of the 4th embodiment, the local policy in territory, P-CSCF place, can become other policy information to pass to PDF again in P-CSCF conversion back carries out, just can convert User Priority to as the user attaching domain information, be handed down to the decision-making of PDF implementation strategy again at P-CSCF.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (21)
1. method for confirming data transmission service quality in the communication network comprises core net in this communication network, and by service access in this communication network of the network element control in the core net and bearing bed resource allocation,
It is characterized in that described method comprises following steps at least:
Network element in the described core net carries out the decision-making of service quality according to subscriber equipment jointly to the solicited message of service quality and the network side information of obtaining in advance or operation information.
2. method for confirming data transmission service quality in the communication network according to claim 1 is characterized in that described network is an internet protocol multimedia subsystem.
3. method for confirming data transmission service quality in the communication network according to claim 2 is characterized in that, the network side information of described preset kind or operation information are the signatory class policy informations of user.
4. method for confirming data transmission service quality in the communication network according to claim 3 is characterized in that, described method comprises following steps:
When described user equipment registration, service call conversation control function is to the CAMEL-Subscription-Information of the server requests download user of preserving user signing contract information;
The described server of preserving user signing contract information returns response message to described service call conversation control function, wherein comprises the signatory class policy information of the described user who is used for the service quality decision-making;
Described service call conversation control function passes to strategy decision function with the signatory class policy information of the described user who receives through Proxy Call Session Control Function by the conversation launch protocol message of expansion;
Described strategy decision function is according to this locality configuration, the signatory class policy information of user that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
5. method for confirming data transmission service quality in the communication network according to claim 4, it is characterized in that, the described server of preserving user signing contract information can be a home signature user server, or the storage server of independent user subscribed services quality policy information.
6. method for confirming data transmission service quality in the communication network according to claim 3 is characterized in that, described method comprises following steps:
When described user equipment registration, service call conversation control function is preserved the signatory class policy information of the user who downloads;
During described user equipment start service request, described service call conversation control function is revised Session Description Protocol field or refusal service request in the conversation launch protocol message according to the signatory class policy information of the described user who preserves.
7. method for confirming data transmission service quality in the communication network according to claim 3 is characterized in that, described method comprises following steps:
Strategy decision function is when the processing policy decision requests, and Proxy Call Session Control Function passes to this strategy decision function with user ID;
Described strategy decision function is according to the user ID of receiving, directly from home signature user server, or the storage server of independent user subscribed services quality policy information, and the download user class policy information of contracting;
Described strategy decision function is according to this locality configuration, the signatory class policy information of user that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
8. method for confirming data transmission service quality in the communication network according to claim 2 is characterized in that, the network side information of described preset kind or operation information are request corresponding service class policy informations.
9. method for confirming data transmission service quality in the communication network according to claim 8 is characterized in that, described method comprises following steps:
Application server is when receiving service request, judge whether the user exists the service class policy information relevant with service quality, if then in response to service request, by the conversation launch protocol message of expansion, this user's service class policy information is sent to service call conversation control function;
After described service call conversation control function is received described user's service class policy information, its Session initiation Protocol response message by expansion is passed to strategy decision function through Proxy Call Session Control Function;
Described strategy decision function is according to this locality configuration, the service class policy information that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
10. method for confirming data transmission service quality in the communication network according to claim 8 is characterized in that, described method comprises following steps:
Application server is when receiving service request, judge whether the user exists the service class policy information relevant with service quality, if then in response to service request, by the conversation launch protocol message of expansion, this user's service class policy information is sent to Proxy Call Session Control Function through service call conversation control function;
Described Proxy Call Session Control Function disposes according to this locality, converts the described service class policy information of receiving to unified priority, transformation result is passed to described strategy decision function again;
Described strategy decision function after according to this locality configuration, the conversion of being obtained the service class policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
11. method for confirming data transmission service quality in the communication network according to claim 8 is characterized in that, described method comprises following steps:
Strategy decision function is directly obtained the service class policy information from application server when the processing policy decision requests.
12. method for confirming data transmission service quality in each described communication network in 10 is characterized in that described service class policy information can be based on the grade of service according to Claim 8.
13. method for confirming data transmission service quality in the communication network according to claim 2 is characterized in that, the network side information of described preset kind or operation information are access style and position class policy information.
14. method for confirming data transmission service quality in the communication network according to claim 13 is characterized in that, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
Described Proxy Call Session Control Function sends to strategy decision function with the access style of this subscriber equipment and position class policy information when receiving the service request of described subscriber equipment;
Described strategy decision function is according to this locality configuration, the access style that is obtained and position class policy information and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
15. method for confirming data transmission service quality in the communication network according to claim 13 is characterized in that, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
Described Proxy Call Session Control Function sends to service call conversation control function with access style and the position class policy information that obtains;
Described service call conversation control function is preserved access style and the position class policy information of receiving;
When described service call conversation control function is received from the service request of described subscriber equipment, according to the access style and the position class policy information of this subscriber equipment of being preserved, directly revise Session Description Protocol field or refusal service request in the conversation launch protocol message.
16. method for confirming data transmission service quality in the communication network according to claim 13 is characterized in that, described network comprises the 3rd network element that is used to provide access information;
Described method comprises following steps:
Proxy Call Session Control Function is inquired about and preserves the access style and the position class policy information of this subscriber equipment to described the 3rd network element when described user equipment registration;
When receiving the service request of described subscriber equipment, described Proxy Call Session Control Function disposes according to this locality, convert the access style and the position class policy information of this subscriber equipment of preserving to unified priority, again transformation result is passed to described strategy decision function;
Described strategy decision function after according to this locality configuration, the conversion of being obtained access style and position class policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
17. method for confirming data transmission service quality in the communication network according to claim 2 is characterized in that, the network side information of described preset kind or operation information are visited network local service policy informations.
18. method for confirming data transmission service quality in the communication network according to claim 17 is characterized in that, described method comprises following steps:
Proxy Call Session Control Function obtains visited network local service policy information from the login request message of receiving, and preserves;
Described Proxy Call Session Control Function sends to strategy decision function with the visited network local service policy information of this subscriber equipment when receiving the service request of described subscriber equipment;
Described strategy decision function is according to this locality configuration, the visited network local service policy information that is obtained and the subscriber equipment solicited message to service quality, the service quality of determination data transmission.
19. method for confirming data transmission service quality in the communication network according to claim 17 is characterized in that, described method comprises following steps:
Proxy Call Session Control Function obtains visited network local service policy information from the login request message of receiving, and preserves;
Described Proxy Call Session Control Function converts the visited network local service policy information of this subscriber equipment to unified priority when receiving the service request of described subscriber equipment, transformation result is passed to described strategy decision function again;
Described strategy decision function after according to this locality configuration, the conversion of being obtained visited network local service policy information and subscriber equipment to the solicited message of service quality, the service quality of determination data transmission.
20., it is characterized in that described visited network local service policy information can be based on the user attaching territory according to method for confirming data transmission service quality in each described communication network in the claim 17 to 19.
21. method for confirming data transmission service quality in the communication network according to claim 1 is characterized in that, described network can be a next generation network.
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| CN102281517B (en) * | 2010-06-13 | 2015-05-13 | 中兴通讯股份有限公司 | Non-voice emergency call control method, IP multimedia subsystem and P-CSCF (Proxy Call Session Control Function) |
| CN102457836A (en) * | 2010-10-22 | 2012-05-16 | 中国移动通信集团设计院有限公司上海分公司 | Method, device and system for confirming priority information of user |
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| CN109842643A (en) * | 2017-11-27 | 2019-06-04 | 华为技术有限公司 | A kind of method, apparatus and system of Dialog processing |
| CN109842643B (en) * | 2017-11-27 | 2021-11-09 | 华为技术有限公司 | Session processing method, device and system |
| US11463530B2 (en) | 2017-11-27 | 2022-10-04 | Huawei Technologies Co., Ltd. | Session processing method, apparatus, and system |
| US11758002B2 (en) | 2017-11-27 | 2023-09-12 | Huawei Technologies Co., Ltd. | Session processing method, apparatus, and system |
| CN108513294A (en) * | 2018-04-23 | 2018-09-07 | 济南浪潮高新科技投资发展有限公司 | A kind of S-CSCF application servers and method based on Heterogeneous Computing |
| CN114615156A (en) * | 2020-12-04 | 2022-06-10 | 中国移动通信集团有限公司 | Quality of service (QoS) control method and device, electronic equipment and computer storage medium |
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