CN101399768B - Policy control method, device and system - Google Patents
Policy control method, device and system Download PDFInfo
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- CN101399768B CN101399768B CN200710305537.9A CN200710305537A CN101399768B CN 101399768 B CN101399768 B CN 101399768B CN 200710305537 A CN200710305537 A CN 200710305537A CN 101399768 B CN101399768 B CN 101399768B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/20—Traffic policing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The embodiment of the invention discloses a policy control system, and the system comprises a session resources control unit which is used for producing the operational requirements of session resources and transmitting a session request which carries the operational requirements of session resources to a session resources application unit; and the system also comprises a session resources application unit which is used for applying the session resources according to the operational requirements of session resources in the session request. The embodiment of the invention also discloses a policy control method, a method for realizing conferencing service by the policy control, a session resources controller and a session resources application device. By adopting the invention, the policy control function can be implemented according to service requirements and user can establish a plurality of sessions at the same time. Only a part of sessions are activated at the same moment, thus improving the utilization rate of media resources and realizing services.
Description
Technical field
(IP Multimedia Subsystem, IMS) technical field more specifically, relate to a kind of policy control method, Apparatus and system to the present invention relates to IP Multimedia System.
Background technology
Continuous maturation along with group technology, develop based on Circuit-switched conventional telecommunication network to broadband telecommunication net based on packet switching, (Session Initiation Protocol, SIP) call control signalling as the grouping telecommunications core network then is one of current technology trends and use session initiation protocol.Such as: at (the International Telecommunication Union-Telecommunication Standardization Sector of International Telecommunications Union-telecommunication standard portion, ITU-T) and (the European Telecommunications Standards Institute of ETSI, ETSI) etc. normal structure is to next generation network (Next Generation Network, NGN) in the research process, all adopted third generation partner program (The Third Generation Partnership Project, 3GPP) (IP Multimedia Subsystem, IMS) network architecture is as the core net of NGN for the defined IP Multimedia System of normal structure.
IMS is an IP Multimedia System of 3GPP standard definition, is that the third generation (The ThirdGeneration, 3G) realize packet voice and grouped data, the unified multimedia service and the objective network of application are provided by mobile radio communication.IMS adopts the bearer path of IP packet domain as its control signaling and media delivery, adopts Session Initiation Protocol as call control signalling, has realized that the three that service management, session control and carrying insert separates.Session Initiation Protocol is a kind of application layer control protocol that is used to set up, change and stop Multimedia session or calling, these Multimedia session comprise multimedia conferencing, remote teaching, Internet telephony etc., its core is by the Internet engineering duty group (Internet Engineering Task Force, IETF) normal structure definition.
In order to provide multimedia service to the user, NGN core net needs and bearer network are mutual, realize resource reservation, management and the use of conversation media passage by policy control.In conventional telecommunication network, network is except providing the call service to the user, also need in call service, provide the supplementary service service, as call waiting (CW), call hold service (HOLD), convention business (CONF), call switching business (ECT), Call Forwarding services (CDIV) etc.In packet telecommunications network, packet telecommunications network still needs to provide class to try in the service of legacy circuit network supplementary service to user terminal.Wherein, ETSI subordinate's telecommunications and the Internet converged services and high-level network protocol (Telecommunications and Internet Converged Services and Protocols forAdvanced Networking, TISPAN) business with traditional business feature that will provide to the sip terminal user in NGN is referred to as PSTN/ISDN analog service (Simulation Services), and the implementation method of above-mentioned business is with reference to the TISPAN related specifications.
In above-mentioned analog service, a class business is arranged, allow the user to set up a plurality of sessions simultaneously, and, have only the medium of partial session to be in state of activation at synchronization.Such as, the CW business has taken at user terminal under the situation of resource, needs to accept new session, when discharging original resource, can activate new session; For another example, the HOLD business keeps the user under the other side's the situation, can receive or initiate new session; For another example, convention business under the situation of setting up session, can initiate a session request, and sets up meeting; For another example, convention business under the situation of setting up session, can receive conversation request, joins meeting; For another example, the ECT business under the situation of setting up session, can receive conversation request, is transferred to the third party.
In the corresponding policy control standard of 3GPP,, therefore can only not carry out policy control at present at single session at the policy control solution of specific transactions.Like this, when the user set up a plurality of session, though have only the medium of partial session to be in state of activation, network was reserved the resource of all sessions, and under the situation of inadequate resource, this will cause new conversation failure, cause above-mentioned business to realize.
(Resourceand Admission Control Subsystem has introduced the function of excessive reservation in RACS) to the WI02036 NGN R2 RACS project of TISPAN in the resource management control system.Application function (AF) carries resource and excessively reserves indication when initiating resource reservation, RACS excessively reserves indication according to resource and carries out resource and excessively reserve, and when inadequate resource, does not return resource reservation and fail.
Yet above-mentioned technology is not described AF and when is issued corresponding resource and excessively reserve indication, so corresponding business still can't realize.And if the equal down distributing resource of all sessions is excessively reserved indication, that just makes resource reservation lose meaning.In a word, in the prior art, do not have technical scheme according to the needs implementation strategy controlled function of business.
Summary of the invention
The embodiment of the invention provides policy controlling system in a kind of IP Multimedia System, with the needs implementation strategy controlled function according to business.
The embodiment of the invention provides policy control method in a kind of IP Multimedia System, with the needs implementation strategy controlled function according to business.
The embodiment of the invention provides tactful control device in a kind of IP Multimedia System, with the needs implementation strategy controlled function according to business.
The technical scheme of the embodiment of the invention is as follows:
Policy control method in a kind of IP Multimedia System, this method comprises:
The Session Resources application unit receives the conversation request that carries described Session Resources operational requirements;
The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request;
Described Session Resources operational requirements comprises reuses conversation strategy, carries in the Session Resources application that the Session Resources application unit sends and reuses the session indication.
Realize the method for convention business in a kind of IP Multimedia System by policy control, this method comprises:
Initiate convention business, and keep current session;
Produce the Session Resources operational requirements, and send the convention business conversation request that carries described Session Resources operational requirements to the Session Resources application unit;
The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request, and new session is joined in the described convention business.
Session Resources control device in a kind of IP Multimedia System, this Session Resources control device is connected with session resource bid unit, described Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the conversation request of receiving, and send the Session Resources application request carry described Session Resources operation indication to the strategic decision-making unit, determine strategic decision-making by the strategic decision-making unit according to the operation of the Session Resources in described Session Resources application request indication;
This Session Resources control device comprises:
The conversation request receiver module is used to receive the conversation request that is sent by user terminal;
The conversation strategy resource is carried module, is used for carrying the Session Resources operational requirements in described conversation request, and sends the conversation request that carries described Session Resources operational requirements to the Session Resources application unit;
Described conversation request comprises:
The user activates the call hold service request;
User's call waiting request of contracting;
User's convention business request of contracting;
Described Session Resources operational requirements comprises the excessive reservation policy of resource or reuses conversation strategy.
As can be seen, in the policy control of the embodiment of the invention, the Session Resources control unit produces the Session Resources operational requirements, and sends the conversation request that carries the Session Resources operational requirements to the Session Resources application unit from technique scheme; The Session Resources application unit removes to apply for Session Resources according to the Session Resources operational requirements in this conversation request.Therefore, use after the present invention, the Session Resources control unit can be according to the needs of business, produce the Session Resources demand, the Session Resources application unit can be determined policy control according to the Session Resources operational requirements of carrying in the conversation request that receives, thereby realized carrying out efficient strategy control according to the needs of business, by the technical scheme that the embodiment of the invention provides, make that especially the business realizing that allows the user to set up a plurality of sessions simultaneously and have only the medium of partial session to be in state of activation at synchronization becomes possibility.
Description of drawings
Fig. 1 is the structural representation according to the policy controlling system of the embodiment of the invention;
Fig. 2 is the structural representation of the policy controlling system of preferred embodiment according to the present invention;
Fig. 3 is the structural representation of the Session Resources control device of the preferred embodiment according to the present invention;
Fig. 4 is the structural representation of the Session Resources control device of another preferred embodiment according to the present invention;
Fig. 5 is the structural representation of the Session Resources application device of the preferred embodiment according to the present invention;
Fig. 6 is the structural representation of the policy control device of the preferred embodiment according to the present invention;
Fig. 7 is according to the policy control method schematic flow sheet in the call hold service of a preferred embodiment of the present invention;
Fig. 8 is the policy control method schematic flow sheet in the call hold service of another preferred embodiment according to the present invention;
Fig. 9 is according to the policy control method schematic flow sheet in the call waiting of a preferred embodiment of the present invention;
Figure 10 is in the convention business according to a preferred embodiment of the present invention, ongoing session is joined the method flow schematic diagram of meeting;
Figure 11 in the convention business according to a preferred embodiment of the present invention, will oneself join the method flow schematic diagram of meeting;
Figure 12 is that the user who is conversing receives the method flow schematic diagram that REFER message is added into meeting in the convention business according to a preferred embodiment of the present invention;
Figure 13 is in the convention business of another preferred embodiment according to the present invention, and the user who is conversing receives the method flow schematic diagram that INVITE is added into meeting.
Embodiment
For making the purpose, technical solutions and advantages of the present invention express clearlyer, the present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is the structural representation according to the policy controlling system of the embodiment of the invention.
As shown in Figure 1, this system comprises:
Session Resources control unit 101 is used to produce the Session Resources operational requirements, and sends the conversation request that carries described Session Resources operational requirements to Session Resources application unit 102;
Session Resources application unit 102 is used for the Session Resources operational requirements application Session Resources according to described conversation request.
Wherein, Session Resources control unit 101 is finished the controlled function of session, produces the Session Resources operational requirements, sends the Session Resources operational requirements to session resource bid unit 102.Such as: Session Resources control unit 101 can produce the Session Resources operational requirements according to user's wish; Or produce the Session Resources operational requirements according to user's signatory state; Or produce the Session Resources operational requirements according to user's service condition; Or produce the Session Resources operational requirements according to user's session status; Or according to the parameter generating Session Resources operational requirements in the conversation request.
Session Resources control unit 101 can be user terminal (UE), Session Control Unit (as P-CSCF, S-CSCF, I-CSCF etc.) or the application server (AS) etc. in the IMS network.
Session Resources application unit 102 receives the Session Resources operational requirements, and the application Session Resources.AF when Session Resources application unit 102 can be resource bid (application function) is as the AS in the IMS network, P-CSCF, IBCF etc.
The agreement of E1 interface comprises but is not limited to SIP or internal interface agreement etc. between Session Resources application unit 102 and the Session Resources control unit 101.E1 interface between Session Resources application unit 102 and the Session Resources control unit 101 can be through the intermediate node switching, as working as Session Resources application unit 102 are P-CSCF, when Session Resources control unit 101 was AS, the E1 interface can be through one or more switching among S-CSCF or the I-CSCF.
Further, this system can also comprise strategic decision-making unit 103.Session Resources application unit 102 sends Session Resources application request to strategic decision-making unit 103, and strategy decisive function is finished according to the request of Session Resources application unit 102 in strategic decision-making unit 103.Strategic decision-making unit 103 can be PDF (strategy decisive function), PCRF (Policy and Charging Rules Function "Policy and Charging Rules Function).E2 interface protocol between strategic decision-making unit 103 and the Session Resources application unit 102 is including but not limited to Diameter or internal interface agreement.
Particularly, Session Resources application unit 102 is used for determining Session Resources operation indication according to the Session Resources operational requirements of conversation request, and sends the Session Resources application request that carries described Session Resources operation indication to strategic decision-making unit 103; This moment, the strategic decision-making unit 103, were used for determining strategic decision-making according to the Session Resources operation indication of described Session Resources application request.
Further, this system can also comprise strategy execution unit 104, is used for finishing policy enforcement function according to the indication of strategic decision-making unit 103.E3 interface protocol between strategic decision-making unit 103 and the strategy execution unit 104 includes but not limited to Diameter, H248, COPS or internal interface agreement etc.
In addition, Session Resources control unit 101, can further produce the Session Resources operational requirements of renewal, in the subsequent message of described conversation request, carry the Session Resources operational requirements of described renewal, and send described subsequent message to Session Resources application unit 102; Session Resources application unit 102 can be further according to the Session Resources operational requirements application Session Resources that upgrades in the described subsequent message.
Based on structure shown in Figure 1, Fig. 2 is the structural representation of the policy controlling system of preferred embodiment according to the present invention.
As shown in Figure 2, Service Control Unit 203 provides the service logic controlled function, and Service Control Unit 203 is professional host's execution environment.Service Control Unit 203 is carried out correspondent service logic, as CW business, HOLD business, CONF business, ECT business etc.
Can have F5 interface (Fig. 2 part omitted) agreement between 202, two Session Control Unit 202 of a plurality of Session Control Unit can be SIP or internal interface agreement.User terminal 201 can be a terminal of supporting Session Initiation Protocol, as the UE in the IMS network.F1 interface between user terminal 201 and the Session Control Unit 202 is a Session Initiation Protocol.
Further, can also comprise strategic decision-making unit 204 and/or strategy execution unit 205 in the system embodiment illustrated in fig. 2, its function class is similar to the corresponding functional unit among Fig. 1, repeats no more herein.
Fig. 3 is the structural representation of the Session Resources control device of the preferred embodiment according to the present invention.This Session Resources control device is connected with session resource bid unit, described Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the conversation request of receiving, and send the Session Resources application request carry described Session Resources operation indication to the strategic decision-making unit, determine strategic decision-making by the strategic decision-making unit according to the operation of the Session Resources in described Session Resources application request indication.
As shown in Figure 3, this Session Resources control device comprises: resource operation demand generation module 301 is used for producing the Session Resources operational requirements according to user's wish; Or be used for producing the Session Resources operational requirements according to user's signatory state; Or be used for producing described Session Resources operational requirements according to user's service condition; Or be used for producing described Session Resources operational requirements according to user's session status; Or be used for according to the described Session Resources operational requirements of the parameter generating of conversation request;
Conversation request makes up module 301, is used to make up the conversation request of carrying the Session Resources operational requirements.Such as, described conversation request can be the SIP INVITE.
Conversation request sending module 302 is used for sending the conversation request that carries described Session Resources operational requirements to the Session Resources application unit.
Wherein, conversation request can comprise: activate the conversation request that keeps the new conversation request of professional back initiation or initiate convention business.And this Session Resources control device is preferably user terminal.
Fig. 4 is the structural representation of the Session Resources control device of another preferred embodiment according to the present invention.This Session Resources control device is connected with session resource bid unit, described Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the conversation request of receiving, and send the Session Resources application request carry described Session Resources operation indication to the strategic decision-making unit, determine strategic decision-making by the strategic decision-making unit according to the operation of the Session Resources in described Session Resources application request indication.
As shown in Figure 4, this Session Resources control device comprises:
Conversation request receiver module 401 is used to receive conversation request;
The conversation strategy resource is carried module 402, is used for carrying the Session Resources operational requirements in described conversation request, and sends the conversation request that carries described Session Resources operational requirements to the Session Resources application unit.
Wherein, described conversation request can comprise: the call waiting request that the request of user activated call hold service, user contract, the convention business request that the user contracts.In addition, the Session Resources control device among Fig. 4 is preferably application server.
Fig. 5 is the structural representation of the Session Resources application device of the preferred embodiment according to the present invention.This Session Resources application device is connected with the strategic decision-making unit, and strategic decision-making is determined according to the operation of the Session Resources in the Session Resources application request of receiving indication in described strategic decision-making unit.
As shown in Figure 5, this Session Resources application device comprises:
Session Resources operation indication determination module 501 is used for determining Session Resources operation indication according to the Session Resources operational requirements of the conversation request of receiving;
Session Resources application request sending module 502 is used for sending the Session Resources application request that carries described Session Resources operation indication to the strategic decision-making unit.
This Session Resources application device is preferably P-CSCF, AS or IBCF.
Fig. 6 is the structural representation of the policy control device of the preferred embodiment according to the present invention.This device is connected with the strategic decision-making unit, and strategic decision-making is determined according to the operation of the Session Resources in the Session Resources application request of receiving indication in described strategic decision-making unit.
As shown in Figure 6, this device comprises:
Session Resources operational requirements generation module 601 is used for generating the Session Resources operational requirements according to the parameter of the conversation request of receiving;
Session Resources operation indication determination module 602 is used for determining Session Resources operation indication according to described Session Resources operational requirements, and sends the Session Resources application request that carries described Session Resources operation indication to the strategic decision-making unit.
Wherein, Session Resources operational requirements generation module 601 can generate the Session Resources operational requirements according to the replaces parameter in the conversation request of receiving.
This policy control device is preferably P-CSCF, AS or IBCF.
The embodiment of the invention also discloses a kind of policy control method, this method comprises:
Produce the Session Resources operational requirements, send the conversation request that carries described Session Resources operational requirements to the Session Resources application unit; The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request.
This method can further include: the Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the described conversation request, sends the Session Resources application request that carries described Session Resources operation indication to the strategic decision-making unit.Then, strategic decision-making is determined according to the operation of the Session Resources in described Session Resources application request indication in the strategic decision-making unit, and policy enforcement function is finished according to determined strategic decision-making in the strategy execution unit then.
Wherein, produce that the Session Resources operational requirements can comprise a kind of in the following mode or more than a kind of combination in any:
Wish according to the user produces the Session Resources operational requirements;
Signatory state according to the user produces the Session Resources operational requirements;
Service condition according to the user produces the Session Resources operational requirements;
Session status according to the user produces the Session Resources operational requirements;
According to the parameter generating Session Resources operational requirements in the conversation request.
Comprise a kind of in the following mode or combination according to the Session Resources operational requirements application Session Resources in the conversation request:
Send the resource bid request to the strategic decision-making unit,, then in described resource bid request, carry resource and excessively reserve indication if comprise the excessive reservation policy of resource in the Session Resources operational requirements; Or
Send the resource bid request to the strategic decision-making unit, reuse conversation strategy, then in described resource request, carry and reuse the session indication if comprise in the Session Resources operational requirements.
Wherein, reuse in the conversation strategy and can comprise one or more session identification, describedly reuse the session indication and can comprise one or more resource identification, the Session Resources application unit need be finished session identification to the mapping between the resource identification.
Reuse and can also comprise one or more Media Stream sign in the conversation strategy, described reusing in the session indication can comprise one or more resource identification, and the Session Resources application unit need be finished Media Stream and be identified to mapping between the resource identification.
Reuse in the session indication and can further include one or more bandwidth information, be used to indicate the bandwidth of reusing, as the already used bandwidth in strategic decision-making unit is 10M, only need reuse original 9M and reuse session, in this case, the Session Resources application unit can be in reusing session indication except that carrying resource identification, and further carrying the bandwidth of reusing is 9M, and the strategic decision-making unit can be reused session and indicates the 9M that can only reuse among the respective resources bandwidth 10M according to above-mentioned.
Wherein, described resource bid request can be the AAR message of Diameter.
After above-mentioned resource bid request is received in the strategic decision-making unit, can excessively indicate or reuse session indication and finish resource decision according to described resource reservation.Particularly, resource decision can comprise:
If the value of described excessive reservation indication is a "Yes", then when the resource in this resource bid request be less than or equal to current idling-resource with occupied resource and the time, return resource reservation successfully; If described reusing in the session indication comprised resource identification, the strategic decision-making unit weighs is not applied for resource in addition with the resource of resource identification correspondence.
Further, when the strategic decision-making unit received that media resource activates request, whether strategic decision-making unit judges resource was available, if available, activated media resource; If unavailable, refusal activates media resource.
Whether available method comprises following at least a strategic decision-making unit judges resource:
1) judges whether excessive reserved resource satisfies the request of activation;
2) judge whether the resource of reusing satisfies the request of activation;
Further, the Session Resources control unit can comprise the Session Resources operational requirements in the subsequent message of this conversation request, the Session Resources application unit is when the subsequent application Session Resources, according to the Session Resources operational requirements application Session Resources after the renewal of receiving.If the Session Resources control unit does not comprise the Session Resources operational requirements in the subsequent message of this conversation request, the Session Resources application unit is when the subsequent application Session Resources, according to default policy application Session Resources.Wherein default policy can comprise: the value of described excessive reservation indication is a "No".Wherein, the Session Resources operational requirements after the renewal can comprise that the excessive reservation policy of resource confirms or reuse conversation strategy and confirm, promptly to the excessive reservation policy of the resource in the conversation request or reuse conversation strategy and confirm.
Below by specific embodiment, describe the implementation method of policy control in detail.
Fig. 7 is according to the policy control method schematic flow sheet in the call hold service of a preferred embodiment of the present invention.
In flow process shown in Figure 7, user terminal UE-A initiates new session after keeping the opposite end, and its flow process is as follows:
The 1st step: user B (counterpart terminal is UE-B) sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of user B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, and after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finishes and opens media resource, transmits 200 message then to UE-B; This moment, user A and user B began conversation, and above-mentioned flow process is with common session flow process;
The 2nd step: user A keeps user B, sends HOLD and asks user B, and user B returns 200 OK response, P-CSCF notification strategy control unit is revised media resource, and transmit 200 OK response messages to UE-A, and realizing the HOLD business, above-mentioned flow process is with existing HOLD operation flow;
The 3rd step: user A initiates new session, beginning calling party C, the terminal of user A (UE-A) is judged (as signatory state according to wish (as the operation of user A) or the detection of self of user A, service condition, session status etc.), in the INVITE request, carry the Session Resources operational requirements, as Overbooking indication, the i.e. excessive reservation policy of resource; Above-mentioned request is sent to P-CSCF;
Optionally, UE-A can also insert the sign of original session AB in above-mentioned INVITE request, promptly reuse conversation strategy; Wherein, UE-A can judge that decision is used according to the detection of self reuse conversation strategy, and Rule of judgment can be following a kind of or combination in any: judge and activated the HOLD service condition, judge and had a session status or judged that signatory bandwidth of remaining free time of user is not enough.
The 4th step: P-CSCF receiving INVITE when request, carries excessive resource reservation indication when the resource reservation according to the Overbooking indication; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
If the sign that session AB has been carried in above-mentioned INVITE request, P-CSCF carries the sign of session AB equally when resource reservation, and PDF can reuse the resource of session AB according to this sign;
The 5th step: P-CSCF transmits this INVITE and asks the professional AS of HOLD;
The professional AS of the 6th step: HOLD transmits this INVITE asks UE-C;
The 7th step: UE-C sends 183 Temporary Responses to the professional AS of HOLD;
The 8th step: HOLD AS judges whether user A has activated the HOLD business when receiving 183 Temporary Responses of opposite end UE-C, if activated the HOLD business, inserts Overbooking and confirm indication in 183 Temporary Responses, is forwarded to P-CSCF.Wherein the 8th step was optional step;
The 9th step: P-CSCF transmits 183 Temporary Responses to UE-A;
Optionally, P-CSCF is when receiving 183 Temporary Responses, if the inside has Overbooking to confirm indication, further when follow-up resource reservation, carry excessive resource reservation indication, do not confirm indication if do not comprise Overbooking in 183 Temporary Responses, when follow-up resource reservation, no longer carry excessive resource reservation indication;
The 10th step: UE-A and UE-C media negotiation, after media negotiation is finished, the UE-C ring, and send 180 and respond UE-A;
The 11st step: user C receives this session, and UE-C sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 12nd step: P-CSCF transmits 200 and responds UE-A, user A and user C conversation.
Wherein, in step 3, both can in the INVITE request, carry the Session Resources operational requirements and reuse conversation strategy, and also can only carry the Session Resources operational requirements or reuse conversation strategy.
This shows, behind application the foregoing description, can realize the policy control in the call hold service, make user terminal after keeping the opposite end, to initiate new session again.
Fig. 8 is the policy control method schematic flow sheet in the call hold service of another preferred embodiment according to the present invention.
In flow process shown in Figure 8, user terminal UE-A receives new session after keeping the opposite end.
As shown in Figure 8, this method comprises:
The 1st step: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, and after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finishes and opens media resource, transmits 200 message then to UE-B; This moment, user A and user B began conversation, and above-mentioned flow process is with common session flow process;
The 2nd step: user A keeps user B, sends HOLD and asks user B, and user B returns 200 OK response, P-CSCF notification strategy control unit is revised medium, and transmit 200 OK response messages to UE-B, and realizing the HOLD business, above-mentioned flow process is with existing HOLD operation flow;
The 3rd step: user C initiation session calling party A, send the professional AS of HOLD that SIP INVITE asks user A, the professional AS of HOLD is according to user's service condition, judge whether user A has activated the HOLD business, if, in the INVITE request, insert the Session Resources operational requirements, as Overbooking indication, the i.e. excessive reservation policy of resource; Above-mentioned request is sent to P-CSCF;
The 4th step: P-CSCF according to the Overbooking indication, carries excessive resource reservation indication when resource reservation when receiving the INVITE request; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 5th step: P-CSCF transmits this INVITE and asks UE-A;
The 6th step: UE-A sends 183 Temporary Responses to P-CSCF;
The 7th step: P-CSCF carries out resource reservation, and carries excessive resource reservation indication when follow-up resource reservation;
The 8th step: P-CSCF transmits 183 Temporary Responses to UE-C;
The 9th step: UE-A and UE-C media negotiation, after media negotiation is finished, the UE-C ring, and send 180 and respond UE-A;
The 10th step: user A receives this session, and UE-A sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 11st step: P-CSCF transmits 200 and responds UE-C, user A and user C conversation.
This shows, behind application the foregoing description, realized the policy control in the call hold service, make user terminal after keeping the opposite end, to receive new session again.Fig. 9 is according to the policy control method schematic flow sheet in the call waiting of a preferred embodiment of the present invention.
In flow process shown in Figure 9, describe call waiting in detail.
As shown in Figure 9, this method comprises:
The 1st step: user B and user A set up session.Specifically comprise: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finish and open media resource, transmit 200 message then to UE-B, this moment, user A and user B began conversation;
The 2nd step: user C initiation session calling party A, send the professional AS of CW that SIP INVITE asks user A, the professional AS of CW judges whether to need to insert the Session Resources operational requirements, if insert the Session Resources operational requirements in the INVITE request; Above-mentioned request is sent to P-CSCF;
In order to judge whether to need to insert the Session Resources operational requirements, the professional AS of CW can adopt following any method:
A, according to user's signatory state, as user's CW business of having contracted, when the user need insert the Session Resources operational requirements as called when accepting calling;
B, according to user's session status, the CW business if the user has contracted, and current session is in and reserves or user mode is when the user need insert the Session Resources operational requirements as called when accepting calling;
C, according to user's session status, the CW business if the user has contracted, and detect the user when busy (as NDUB (the network measuring user is busy) state) needs to insert the Session Resources operational requirements;
Above-mentioned Session Resources operational requirements can be an independent strategy indication, as the Overbooking indication, or a professional indication, as the professional indication of CW, being that the Session Resources operational requirements can be an explicit strategy indication, also can be the business indication of an implicit expression;
The 3rd step: P-CSCF according to the Overbooking indication, carries excessive resource reservation indication when resource reservation when receiving the INVITE request; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 4th step: P-CSCF transmits this INVITE and asks UE-A;
The 5th step: UE-A sends 183 Temporary Responses to P-CSCF;
The 6th step: P-CSCF carries out resource reservation, and carries excessive resource reservation indication when follow-up resource reservation;
The 7th step: P-CSCF transmits 183 Temporary Responses to UE-C;
The 8th step: UE-A and UE-C media negotiation, after media negotiation is finished, the UE-C ring, and send 180 and respond UE-A;
The 9th step: in order to accept the session of C, user A discharges corresponding resource, discharge the Session Resources of user B, such as the Session Resources that discharges user B by the session between the release AB, perhaps discharge the Session Resources of user B by the session between the maintenance AB, this flow process is with common release and keep the examination of flow process class;
The 10th step: user A accepts the session from user C, and UE-A sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 11st step: P-CSCF transmits 200 and responds UE-C, user A and user C conversation.
So far, the foregoing description shown in Figure 9 is described the policy control method in the call waiting in detail.
This shows, behind application the foregoing description, realized the policy control in the call waiting.
Figure 10 is in the convention business according to a preferred embodiment of the present invention, ongoing session is joined the method flow schematic diagram of meeting.
This embodiment describes UE-A with ongoing session B, and C joins the flow process of meeting, and this flow process is applicable to that UE-A joins meeting with ongoing single or a plurality of sessions.
As shown in figure 10, this method comprises:
The 1st step: user A and user B set up session.Specifically comprise: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finish and open media resource, transmit 200 message then to UE-B, this moment, user A and user B began conversation;
The 2nd step: user A keeps user B, set up session with user C, specifically comprise: user A keeps user B, send HOLD and ask user B, user B returns 200 OK response, P-CSCF notification strategy control unit is revised medium, and transmits 200 OK response messages to UE-B, realizes the HOLD business, user A initiates new session then, beginning calling party C, the terminal of user A (UE-A) is according to the wish of user A, and perhaps the detection of self is judged (as signatory state, service condition, session status etc.), in the INVITE request, carry the Session Resources operational requirements, indicate as Overbooking; Above-mentioned request is sent to P-CSCF;
The 3rd step: terminal UE-A is according to the wish of user A, and perhaps (as signatory state, service condition, session status etc.) are judged in the detection of self, carry the Session Resources operational requirements in the INVITE request, indicate as Overbooking; Above-mentioned request is sent to P-CSCF;
Wherein, UE-A can judge according to the detection of self, Rule of judgment can be following a kind of or combination in any: as judge that new conversation request is a convention business request or judges and to have had an above session status or to have judged that signatory bandwidth of remaining free time of user is not enough etc., carries the Session Resources operational requirements in the INVITE request.
Optionally, if the session AB that has set up has independently taken different resources respectively with AC, promptly in step 2, session AC does not use the excessive resource reservation of session AB, then in step 3, UE-A can also insert in above-mentioned INVITE request and reuse conversation strategy, the resource that session AB or session AC or session AB and AC are reused in indication.
The 4th step: P-CSCF according to the Overbooking indication, carries excessive resource reservation indication when resource reservation when receiving the INVITE request; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 5th step: P-CSCF transmits this INVITE and asks the professional AS of CONF;
The 6th step: CONF AS applies for conferencing resource, and sends redirected re-INVITE message to user B, C, and with user B, C joins meeting, and this flow process is with in the existing CONF operation flow, and AS does the implementation method of third party's control;
The 7th step: CONF AS sends 183 Temporary Responses to P-CSCF, carries the conferencing resource of application; Optionally, CONF AS inserts Overbooking and confirms indication in 183 Temporary Responses, and promptly the excessive reservation policy of resource is confirmed, is forwarded to P-CSCF;
P-CSCF carries excessive resource reservation indication when the resource reservation according to Overbooking indication when receiving 183 Temporary Responses; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success; The 8th step: P-CSCF transmits 183 Temporary Responses to UE-A;
Optionally, P-CSCF is when receiving 183 Temporary Responses, if the inside has Overbooking to confirm indication, further when follow-up resource reservation, carry excessive resource reservation indication, not confirming indication if do not comprise Overbooking in 183 Temporary Responses, is no longer to carry excessive resource reservation indication at follow-up resource reservation;
The 9th step: UE-A and conferencing resource media negotiation, after media negotiation was finished, CONF AS sent 180 and responds UE-A;
The 10th step: in order to discharge the resource that AB uses in the original session of UE-A, CONF AS keeps the original session AB of UE-A, and this flow process is identical with common HOLD operation flow, and CONF AS also can discharge resource by discharging session AB;
The 11st step: CONF AS sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 12nd step: P-CSCF transmits 200 and responds UE-A, and user A is added into meeting;
The 13rd step: at this moment, comprise A, B, three users' of C meeting is set up successfully.
This shows that behind application the foregoing description, the user can join ongoing other session in the meeting, this flow process is applicable to that the user joins ongoing single or a plurality of sessions in the meeting.
Figure 11 is that the user who is conversing will oneself join the method flow schematic diagram of meeting in the convention business according to a preferred embodiment of the present invention.
This embodiment describes UE-A and converses, and will oneself join the flow process of meeting.
This flow process comprises:
The 1st step: user A and user B set up session, with common session flow process, specifically comprise: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, and after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finishes and opens media resource, transmits 200 message then to UE-B; This moment, user A and user B began conversation;
The 2nd step: user A initiates meeting, and UE-A keeps UE-B, comprises two kinds of situations:
1, terminal UE-A initiates to keep operation according to user's wish (being the operation of user A);
2, terminal UE-A judges (as signatory state according to the detection of self, service condition, session status etc.) initiate to keep operation, such as, Rule of judgment can be following a kind of or combination in any: judge when having had a session status or initiated the convention business request or judged that signatory bandwidth of remaining free time is not enough, then the session that has existed is initiated to keep operation;
This flow process that keeps operation is with the common flow process that keeps business;
The 3rd step: terminal is judged (as signatory state, service condition, session status etc.) according to user's wish or the detection of self, carries Session Resources operational requirements (as the Overbooking indication) in the INVITE request; Above-mentioned request is sent to P-CSCF;
The 4th step: P-CSCF according to the Overbooking indication, carries excessive resource reservation indication when resource reservation when receiving the INVITE request; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 5th step: P-CSCF transmits this INVITE and asks the professional AS of CONF;
The 6th step: CONF AS applies for conferencing resource;
The 7th step: CONF AS sends 183 Temporary Responses to P-CSCF, carries the conferencing resource of application; Optionally, CONF AS inserts Overbooking and confirms indication in 183 Temporary Responses, be forwarded to P-CSCF;
The 8th step: P-CSCF transmits 183 Temporary Responses to UE-A;
Optionally, P-CSCF is when receiving 183 Temporary Responses, if the inside has Overbooking to confirm indication, further when follow-up resource reservation, carry excessive resource reservation indication, not confirming indication if do not comprise Overbooking in 183 Temporary Responses, is no longer to carry excessive resource reservation indication at follow-up resource reservation;
The 9th step: UE-A and conferencing resource media negotiation, after media negotiation was finished, CONF AS sent 180 and responds UE-A;
The 10th step: CONF AS sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 11st step: P-CSCF transmits 200 and responds UE-A, and user A is added into meeting;
The 12nd step: user A can invite user B to add meeting by the method that sends REFER message, and this flow process is with the flow process of existing CONF business.
As seen from the above-described embodiment, can realize that the user who is conversing joins meeting with oneself.
Figure 12 is that the user who is conversing receives the method flow schematic diagram that REFER message is added into meeting in the convention business according to a preferred embodiment of the present invention;
In flow process shown in Figure 12, user B converses, and receives that REFER request back invitation adds meeting.Flow process shown in Figure 12 is described user B as conferenced party, is added into the implementation method of meeting.
This method comprises:
The 1st step: user A and user B set up session, with common session flow process, specifically comprise: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-B; UE-B returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finish and open media resource, transmit 200 message then to UE-B, this moment, user A and user B began conversation;
The 2nd step: user A creates meeting, and user A is joined meeting, and this flow process adds the flow process of meeting with common A;
The 3rd step: UE-A sends REFER message to B, and the Refer-To header field carries the address of CONF AS, requires UE-B to send conversation request to CONF AS, joins meeting; Simultaneously, carry the replaces header field, require UE-B to discharge original session AB in REFER message;
The 4th step: UE-B sends the SIP INVITE to CONF AS, terminal is judged (as signatory state according to user's wish or the detection of self simultaneously, service condition, session status etc.), in the INVITE request, carry Session Resources operational requirements (as the Overbooking indication); Above-mentioned request is sent to P-CSCF;
The 5th step: P-CSCF according to the Overbooking indication, carries excessive resource reservation indication when resource reservation when receiving the INVITE request; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 6th step: P-CSCF transmits this INVITE and asks the professional AS of CONF;
The 7th step: CONF AS sends 183 Temporary Responses to P-CSCF, carries the conferencing resource of having applied for; Optionally, CONF AS inserts Overbooking and confirms indication in 183 Temporary Responses, be forwarded to P-CSCF;
The 8th step: P-CSCF transmits 183 Temporary Responses to UE-B;
Optionally, P-CSCF is when receiving 183 Temporary Responses, if the inside has Overbooking to confirm indication, further when follow-up resource reservation, carry excessive resource reservation indication, do not confirm indication if do not comprise Overbooking in 183 Temporary Responses, when follow-up resource reservation, no longer carry excessive resource reservation indication;
The 9th step: UE-B sends BYE message to UE-A, discharges original session AB, and this flow process is identical with common session release flow process;
The 10th step: UE-B and conferencing resource media negotiation, after media negotiation was finished, CONF AS sent 180 and responds UE-B;
The 11st step: CONF AS sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 12nd step: P-CSCF transmits 200 and responds UE-B, and user B is added into meeting.
As seen from the above-described embodiment, the user who is conversing can be added in the meeting by receiving REFER message.
Figure 13 is in the convention business of another preferred embodiment according to the present invention, and the user who is conversing receives and receives that the INVITE request is added into the method flow schematic diagram of meeting.
In the flow process shown in Figure 13, user B converses, and receives that INVITE request invitation adds meeting.Flow process shown in Figure 13 is described user B as conferenced party, is added into the implementation method of meeting.This method comprises:
The 1st step: user A and user B set up session, with common session flow process, specifically comprise: user B sends the professional AS (HOLD AS) of maintenance that INVITE asks present networks, carries the media information sdp:B of B in the INVITE request; Keep professional AS to transmit this INVITE and ask P-CSCF, P-CSCF transmits this INVITE and asks UE-A; UE-A returns 183 responses, and P-CSCF initiates resource reservation by policy control unit (as PDF), reserves the media resource of session AB, sends 183 again and responds user B, carries out the media negotiation between UE-A and the UE-B then; After media negotiation was finished, UE-A began ring, and sent 180 message to UE-B, after user A received this session, UE-A sent 200 and responds P-CSCF, and P-CSCF sends and applies for PDF, finish and open media resource, transmit 200 message then to UE-B, this moment, user A and user B began conversation;
The 2nd step: user A creates meeting, and user A is joined meeting, and this flow process adds the flow process of meeting with common A;
The 3rd step: UE-A sends REFER message to CONF AS, and the Refer-To header field carries the address of UE-B, requires CONF AS to send conversation request to UE-B, and UE-B is joined meeting; Simultaneously, in the Refer-To parameter, carry the replaces header field, require UE-B to discharge original session AB;
The 4th step: CONF AS receives above-mentioned REFER message, sends the SIP INVITE to UE-B, carries the conferencing resource medium of application, and the replaces header field, and indication UE-B discharges original session AB; This flow process is with existing conference flow; Above-mentioned request is sent to P-CSCF;
The 5th step: P-CSCF is when receiving the INVITE request, and according to the parameter in the conversation request, promptly the replaces header field in the INVITE determines that this session needs resource excessively to reserve, and carries excessive resource reservation indication when resource reservation; PDF carries out excessive resource reservation according to this indication, returns the resource reservation success;
The 6th step: P-CSCF transmits this INVITE and asks UE-B;
The 7th step: UE-B receives above-mentioned INVITE request, sends 183 Temporary Responses to P-CSCF, and discharges original session AB;
The 8th step: P-CSCF transmits 183 Temporary Responses to CONF AS;
The 9th step: UE-B and conferencing resource media negotiation, after media negotiation was finished, UE-B sent 180 and responds CONF AS;
The 10th step: UE-B sends 200 and responds P-CSCF, and P-CSCF sends and opens the media channel application to PDF, and PDF checks whether resource is available, if available, opens media channel, returns success response, otherwise returns failure;
The 11st step: P-CSCF transmits 200 and responds CONF AS, and user B is added into meeting.
As seen from the above-described embodiment, the user who is conversing can be added in the meeting by receiving INVITE.
In addition, for the ECT business, if user B converses with A, user B receives the REFER request, invites user B to redirect to C.For UE-B, the flow process of this flow process and Figure 12 is similar.Different is, receive the REFER request after, send INVITE to user C, rather than CONF AS; Therefore, B of end user and C conversation, rather than join meeting.
For the ECT business, user B converses with A, receives the INVITE request, invites to redirect to C; For UE-B, the flow process of this flow process and Figure 13 is similar.Different is that the INVITE request of receiving comes from user C, rather than CONF AS; Therefore, B of end user and C conversation, rather than join meeting.
In sum, the embodiment of the invention has proposed a kind of realization system of policy control, and wherein the Session Resources control unit produces the Session Resources operational requirements, and sends the conversation request that carries described Session Resources operational requirements to the Session Resources application unit; The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request.Use after the present invention, the user can set up a plurality of sessions simultaneously, at synchronization, has only the medium of partial session to be in state of activation, thereby has improved the utilization of media resource, also makes professional realization become possibility.
In addition, the embodiment of the invention provides the calling based on said method to keep simultaneously, and Call Waiting is called out switching, the convention business implementation method.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. policy control method in the IP Multimedia System is characterized in that this method comprises:
The Session Resources application unit receives the conversation request that carries the Session Resources operational requirements;
The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request;
Described Session Resources operational requirements comprises reuses conversation strategy, carries in the Session Resources application that the Session Resources application unit sends and reuses the session indication.
2. policy control method according to claim 1 is characterized in that, described Session Resources application unit comprises according to the Session Resources operational requirements application Session Resources in the conversation request:
The Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the described conversation request, sends the Session Resources application request that carries described Session Resources operation indication to the strategic decision-making unit; This method further comprises:
Strategic decision-making is determined according to the operation of the Session Resources in described Session Resources application request indication in the strategic decision-making unit.
3. policy control method according to claim 2 is characterized in that, this method further comprises:
The strategy execution unit according to the strategic decision-making unit determined strategic decision-making finish policy enforcement function.
4. policy control method according to claim 1 is characterized in that, described Session Resources operational requirements is produced by the Session Resources control unit, is specially the Session Resources control unit and is produced by a kind of in the following operation or more than a kind of combination in any:
Wish according to the user produces the Session Resources operational requirements;
Signatory state according to the user produces the Session Resources operational requirements;
Service condition according to the user produces the Session Resources operational requirements;
Session status according to the user produces the Session Resources operational requirements;
According to the parameter generating Session Resources operational requirements in the conversation request.
5. policy control method according to claim 1 is characterized in that, comprises the excessive reservation policy of resource in the described Session Resources operational requirements, carries resource in the Session Resources application that the Session Resources application unit sends and excessively reserves indication.
6. policy control method according to claim 1 is characterized in that,
Described reusing comprises one or more session identification in the conversation strategy, described reusing in the session indication comprises one or more resource identification; Perhaps,
Described reusing comprises one or more Media Stream sign in the conversation strategy, described reusing in the session indication comprises one or more resource identification.
7. according to policy control method according to claim 6, it is characterized in that,
Described reusing in the session indication further comprises one or more bandwidth information.
8. policy control method according to claim 6 is characterized in that, this method further comprises:
The Session Resources application unit is further set up the session identification of reusing in the conversation strategy to the mapping between the resource identification of reusing in the session indication, perhaps sets up the Media Stream of reusing in the conversation strategy and is identified to mapping between the resource identification of reusing in the session indication.
9. policy control method according to claim 6 is characterized in that, the strategic decision-making unit weighs is not applied for Session Resources in addition with the resource of resource identification correspondence.
10. policy control method according to claim 2 is characterized in that,
The strategic decision-making unit determines that strategic decision-making comprises: whether strategic decision-making unit judges resource available, but and when determining that the time spent determine that strategic decision-making is: activate media resource.
11. policy control method according to claim 10 is characterized in that,
Whether available mode comprises following at least a strategic decision-making unit judges resource:
Judge whether current resource satisfies the request of activation; Or
Judge whether the resource of reusing satisfies the request of activation.
12. policy control method according to claim 2 is characterized in that, this method further comprises:
Further produce the Session Resources operational requirements of upgrading, in the subsequent message of described conversation request, carry the Session Resources operational requirements of described renewal, and send described subsequent message to the Session Resources application unit;
The Session Resources application unit is further operated indication according to the definite Session Resources that upgrades of the Session Resources operational requirements of upgrading in the described subsequent message, and sends the Session Resources application request that the Session Resources that carries described renewal is operated indication to the strategic decision-making unit.
13., it is characterized in that preestablish acquiescence Session Resources operational requirements, this method further comprises according to each described policy control method among the claim 1-11:
When not comprising the Session Resources operational requirements in the subsequent message of described conversation request, determine that described acquiescence Session Resources operational requirements is as the Session Resources operational requirements;
The Session Resources application unit is further according to described acquiescence Session Resources operational requirements application Session Resources.
14. realize the method for convention business in the IP Multimedia System by policy control, it is characterized in that this method comprises:
Initiate convention business, and keep current session;
Produce the Session Resources operational requirements, and send the convention business conversation request that carries described Session Resources operational requirements to the Session Resources application unit;
The Session Resources application unit is according to the Session Resources operational requirements application Session Resources in the described conversation request, and new session is joined in the described convention business.
15. the method for realization convention business according to claim 14 is characterized in that, this method further comprises:
User terminal is carried out the operation of described maintenance current sessions according to user's indication; Or user terminal is carried out the operation of described maintenance current sessions according to the judgement of self;
16. Session Resources control device in the IP Multimedia System, it is characterized in that, this Session Resources control device is connected with session resource bid unit, described Session Resources application unit is determined Session Resources operation indication according to the Session Resources operational requirements in the conversation request of receiving, and send the Session Resources application request carry described Session Resources operation indication to the strategic decision-making unit, determine strategic decision-making by the strategic decision-making unit according to the operation of the Session Resources in described Session Resources application request indication;
This Session Resources control device comprises:
The conversation request receiver module is used to receive the conversation request that is sent by user terminal;
The conversation strategy resource is carried module, is used for carrying the Session Resources operational requirements in described conversation request, and sends the conversation request that carries described Session Resources operational requirements to the Session Resources application unit;
Described conversation request comprises:
The user activates the call hold service request;
User's call waiting request of contracting;
User's convention business request of contracting;
Described Session Resources operational requirements comprises the excessive reservation policy of resource or reuses conversation strategy.
17. Session Resources control device according to claim 16 is characterized in that, described Session Resources control device is an application server.
18. Session Resources application device in the IP Multimedia System, it is characterized in that, this Session Resources application device is connected with the strategic decision-making unit, and strategic decision-making is determined according to the operation of the Session Resources in the Session Resources application request of receiving indication in described strategic decision-making unit, wherein
This Session Resources application device comprises:
Session Resources operation indication determination module is used for determining Session Resources operation indication according to the Session Resources operational requirements of the conversation request of receiving;
Session Resources application request sending module is used for sending the Session Resources application request that carries described Session Resources operation indication to the strategic decision-making unit;
Described Session Resources operation indication determination module, determine that according to the Session Resources operational requirements in the conversation request of receiving Session Resources operation indication is specially: the Session Resources operational requirements in conversation request comprises the excessive reservation policy of resource, and definite Session Resources operation is designated as resource and excessively reserves indication; Session Resources operational requirements in conversation request comprises reuses conversation strategy, and definite Session Resources operation is designated as reuses the session indication.
19. Session Resources application device according to claim 18 is characterized in that, described Session Resources application device is agent call control interactive function P-CSCF, application server AS or Interconnection Border Control Function IBCF.
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| PCT/CN2008/072353 WO2009046653A1 (en) | 2007-09-30 | 2008-09-12 | Method, device and system for policy control |
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| CN200710305537.9A CN101399768B (en) | 2007-09-30 | 2007-12-24 | Policy control method, device and system |
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| CN103781121A (en) * | 2012-10-25 | 2014-05-07 | 鸿富锦精密工业（深圳）有限公司 | Bandwidth utilization rate management system and method |
| CN109429361B (en) * | 2017-07-18 | 2021-01-01 | 华为技术有限公司 | Session processing method and device |
| WO2020146964A1 (en) * | 2019-01-14 | 2020-07-23 | Qualcomm Incorporated | Scheduling of multiple transport blocks for grant-free uplink transmission |
| CN112020096B (en) * | 2019-05-31 | 2022-04-15 | 大唐移动通信设备有限公司 | Voice service processing system, method and device of 5G network |
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| CN1832447A (en) * | 2005-03-08 | 2006-09-13 | 华为技术有限公司 | Method for implementing user requiring mode resource preretention in net network |
| CN1996999A (en) * | 2005-12-31 | 2007-07-11 | 华为技术有限公司 | A media resource reservation method and device |
-
2007
- 2007-12-24 CN CN200710305537.9A patent/CN101399768B/en not_active Expired - Fee Related
-
2008
- 2008-09-12 WO PCT/CN2008/072353 patent/WO2009046653A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040037407A1 (en) * | 2002-08-26 | 2004-02-26 | Christophe Gourraud | Method and system for multi-party call conferencing |
| CN1469585A (en) * | 2003-06-26 | 2004-01-21 | 中国科学院计算技术研究所 | Session and medium authorization method in IP video telephone system based on session start protocol |
| US20050243746A1 (en) * | 2004-04-29 | 2005-11-03 | Nokia Corporation | Session inspection scheme |
| CN1832447A (en) * | 2005-03-08 | 2006-09-13 | 华为技术有限公司 | Method for implementing user requiring mode resource preretention in net network |
| CN1996999A (en) * | 2005-12-31 | 2007-07-11 | 华为技术有限公司 | A media resource reservation method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009046653A1 (en) | 2009-04-16 |
| CN101399768A (en) | 2009-04-01 |
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