CN1996999A - A media resource reservation method and device - Google Patents
A media resource reservation method and device Download PDFInfo
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- CN1996999A CN1996999A CNA2005100482912A CN200510048291A CN1996999A CN 1996999 A CN1996999 A CN 1996999A CN A2005100482912 A CNA2005100482912 A CN A2005100482912A CN 200510048291 A CN200510048291 A CN 200510048291A CN 1996999 A CN1996999 A CN 1996999A
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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
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/824—Applicable to portable or mobile terminals
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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
- H04L47/15—Flow control; Congestion control in relation to multipoint traffic
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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
- H04L47/70—Admission control; Resource allocation
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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
- H04L47/70—Admission control; Resource allocation
- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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Abstract
This invention discloses one early media material pertain method and device, wherein, on one end, called first terminal to preserve materials for early media after negotiating with first media; on the other erne, called first terminal negotiates with first media and when P-CSCF message test module finds the require message, it starts device and sends authorization require message and informs the PDF media materials; after fulfilling first media to preserve materials for early media; establishing early media dialogue.
Description
Technical field
The present invention relates to IP Multimedia System (IMS, IP Multimedia Subsystem), relate in particular to the method for obligating resource and the equipment of Early media among a kind of IMS.
Background technology
IMS is an IP multimedia subsystem, IMS of 3GPP R5 stage definitions, adopt the bearer path of packet domain (PS) for its upper strata control signaling and media delivery, introduce conversation initialized protocol (SIP, SessionInitiation Protocol) as professional control protocol, utilize simple, the easy expansion of SIP, media combination characteristics easily, business control is separated the multimedia service that provides abundant with carrying control.Major function entity among the IMS comprise functions such as control user registration and session call conversation control entity CSCF (P/I/S-CSCF), manage concentratedly user contracting data home subscriber server HSS, the application server (AS of miscellaneous service logic control function is provided, Application server) and finish and the outlet gateway control entity (BGCF of circuit domain (PSTN/PLMN) intercommunication and routing, Breakout GatewayControl Function) and media gateway controlling entity (MGCF, Media Gateway ControlFunction).
Early media (Early Media) is meant the medium that session exchanges before being accepted by the callee, this medium are mainly used in the service application before the formal foundation of session, as CRBT, polychrome etc.RFC3261 also supports Early media in fact, but its simple tenability can not satisfy most of needs substantially.In order better to support Early media, RFC3959 and RFC3960 have expanded Session Initiation Protocol, make Session Initiation Protocol can support the business that Early media is relevant more easily.
Early media is mainly based on two models, and one is gateway model, and one is the application server model.
1) gateway model
Gateway model does not need to revise agreement, just has now on the basis that provides/reply (offer/answer) mechanism at SIP terminal behavior is carried out standard, so that can farthest realize the processing of bifurcated (FORKING) and ring-back tone is got final product.
In gateway model, the offer/answer that the final response of INVITE is carried out before returning can be used to set up early stage media session alternately, and this early stage media session is terminated when the final response of INVITE sends out.If this final response is 200, so this early stage media session will convert last formal session to.If response right and wrong 200 types that this is final, this early stage media session will simply be disconnected so.
In order to support early stage media negotiation fully, gateway model requires terminal and gateway preferably can both support message such as reliable Temporary Response, PRACK and UPDATE in the Session Description Protocol (SDP).Simultaneously, terminal can be received and dispatched Media Stream finishing after taking turns SDP negotiation.
Gateway model is fairly simple, and existing network is not had influence substantially.But gateway model exists the processing defective of bifurcated (FORKING) and ring-back tone to produce defective.
2) application server model
The application server model extension Session Initiation Protocol.Specifically, User Agent Client (UAC, UserAgent Client) aspect has increased early-session option-tag (early-session option tag), indicate it to support early-session tendency type (early-session disposition type) to subscriber proxy server (UAS, User Agent Server).The negotiation of this early-session tendency type is also adopted and is provided/reply (offer/answer) pattern, and it is independently with the offer/answer process of formal conversation type (session disposition type).In addition, requiring and support to have increased early-session option (Early-sessions Option) label in (Require and Supported), be used for indicating user agent (UA) to understand the tendency type that early-session defines.
The application server model has solved two serious problems that exist in the gateway model.
Can set up prerequisite for abundant business in formal session in view of Early media, as the IMS of following objective network, it supports that Early media just seems necessary.But service quality (QoS) resource reservation of Early media also lacks consideration in IMS at present, and the scheme of Ti Chuing is exactly in order to address this problem here.
Among the present IMS, the QoS resource reservation is finished by proxy CSCF (P-CSCF) control strategy decision making function (PDF, Policy Decision Function).P-CSCF carries out the reservation of QoS resource according to the result who consults, and this reservation procedure is finished by PDF.
Below, the reservation procedure of QoS resource in the prior art is briefly described with reference to Fig. 1.
In step 101, UE adopts in 1 session foundation request (INVITE) message of initiating and carries SDP information.
Step 102-104, P-CSCF receive 183, and (session carry out in) begins to carry out the authentication of QoS resource afterwards.Initiate authentication request (Auth Request) to PDF, after authentication was passed through, PDF replied affirmation (ACK) message relevant authentication-tokens (Auth Token) is taken back.
In step 105, P-CSCF brings UE#1 with relevant authentication-tokens in 183.UE#1 receives 183 back initiation resource retention process.The resource retention process is with IP carrying Access Network bottom entity interaction, and the BRAS that SGSN/GGSN, the xDSL that IP carrying Access Network bottom entity inserts such as UMTS inserts etc. are not shown in Fig. 1.
At step 106-107, after callee's final response (200) was returned, P-CSCF sent to PDF and opens gate (Open Gate) message, begins session so that open gate.
After the conversation end, P-CSCF sends resource release message (Revoke) to discharge relevant QoS resource to PDF.
Summary of the invention
Because the Early media before formal session begins also can take the QoS resource, and present IMS effectively manages the employed resource shortage of Early media, so the present invention proposes a kind of method for obligating resource and equipment of Early media.
A kind of method for obligating resource of Early media is proposed on the one hand.This Early media is the medium of exchange before formal session is set up.The method comprising the steps of: first terminal of A1, calling is carried out first media negotiation with the calling opposite end, is the Early media reserved resource; A2, acting server (P-CSCF) promptly send after first terminal resource is reserved successfully and open gate message, and (PDF) opens reserved resource by strategy decisive function; A3, first terminal and the Early media session of calling out between the opposite end are set up.
Above-mentioned steps A1 further comprises: before reserved resource, this acting server (P-CSCF) sends authentication request message to strategy decisive function (PDF).
Above-mentioned steps A1 further comprises: when resource that the resource of first media negotiation is determined when sending authentication request not simultaneously or when after the resource of a media negotiation and first media negotiation resource not simultaneously, this acting server (P-CSCF) sends to strategy decisive function (PDF) with the modification message of reserved resource.
In the said method: this authentication request message comprises the intersection of formal medium and Early media information.
In the said method, this authentication request message comprises the information of formal medium or Early media.
In the said method, this authentication request message comprises the information of the medium that service quality QoS requirements is higher in formal medium and the Early media.
Said method also comprises step: when carrying out early media negotiation, this acting server notification strategy decision making function (PDF) is reserved according to the resource of current negotiation.
Said method also comprises step: when carrying out formal media negotiation, this acting server is preserved the resource information of consulting.
Said method also comprises step: this acting server (P-CSCF) is received when the final response (200) of request is set up in session, send modification message to strategy decisive function (PDF), the Early media attribute is made as down state and formal medium property is made as upstate, carry out resource reservation according to revising the formal media negotiation information that comprises in the message simultaneously.
Another aspect proposes a kind of method for obligating resource of Early media.This Early media is the medium of exchange before formal session is set up.The method comprising the steps of: first terminal of B1, calling is carried out first media negotiation with the calling opposite end, and the acting server of first terminal (P-CSCF) sends authentication request message notification strategy decision making function (PDF) media resource and is set to open; B2, first media negotiation are finished, and are the Early media reserved resource; The Early media session between the opposite end is set up and called out to B3, first terminal.
Above-mentioned steps B2 further comprises: when resource that the resource of first media negotiation is determined when sending authentication request not simultaneously or when after the resource of a media negotiation and first media negotiation resource not simultaneously, this acting server (P-CSCF) sends to strategy decisive function (PDF) with the modification message of reserved resource.
In the said method, this authentication request message comprises the intersection of formal medium and Early media information.
In the said method, this authentication request message comprises the information of formal medium or Early media.
In the said method, this authentication request message comprises the information of the medium that service quality QoS requirements is higher in formal medium and the Early media.
Said method also comprises step: when carrying out early media negotiation, this acting server notification strategy decision making function (PDF) is reserved according to the resource of current negotiation.
Said method also comprises step: when carrying out formal media negotiation, this acting server is preserved the resource information of consulting.
Said method also comprises step: acting server (P-CSCF) is received when the final response (200) of request is set up in session, send modification message to strategy decisive function (PDF), the Early media attribute is made as down state and formal medium property is made as upstate, carry out resource reservation according to revising the formal media negotiation information that comprises in the message simultaneously.
On the other hand, a kind of resource reservation equipment of Early media is proposed, this equipment is positioned on the acting server (P-CSCF) of subscriber equipment, comprise: the message detection device is used to detect message that the acting server at place receives and instructs detecting when showing that described resources for user equipment is reserved successful message to send to the resource opening device; The resource opening device is used for will opening gate message when receiving the instruction that the message detection device sends and sends to strategy decisive function (PDF).
Also have on the one hand, a kind of resource reservation equipment of Early media is proposed, this equipment is positioned on the acting server (P-CSCF) of subscriber equipment, comprise: the message detection device is used to detect message that the acting server at place receives and sends instruction to the resource opening device when detecting the message that expression need apply for token; The resource opening device, the information that is used for will opening resource when receiving the instruction that the message detection device sends is included in authentication request message and sends to strategy decisive function (PDF).
Advantage and characteristics that the present invention is main are as follows:
1. the technical scheme of this invention provides resource reservation for the Early media under gateway model and the application server model, be characterized in that subscriber equipment and P-CSCF just revise the media resource reserved and amended media resource is offered the Early media session when whenever finishing the Offer/Answer of a media negotiation, rather than session by the time just provides relevant resource when successfully setting up.
2. adopt the technical scheme of this invention to make those use business such as CRBT, the polychrome etc. of Early media that the QoS guarantee has been arranged, also significantly improved these professional quality.
Description of drawings
Fig. 1 illustrates a canonical process of media resource reservation in the existing IMS;
Fig. 2 illustrates the resource reservation process according to the described Early media of first embodiment under the gateway model of the present invention;
Fig. 3 illustrates the resource reservation process according to the described Early media of second embodiment under the gateway model of the present invention;
Fig. 4 illustrates the resource reservation process according to the described Early media of first embodiment under the application server model of the present invention;
Fig. 5 illustrates the resource reservation process according to the described Early media of second embodiment under the application server model of the present invention;
Fig. 6 is the composition structure chart according to the resource reservation equipment of Early media of the present invention.
Embodiment
Support Early media mainly based on gateway model and application server model, these two kinds of situations are included among the QoS resource reservation scheme of Early media of the present invention's proposition.
A kind of situation is the QoS resource reservation under the gateway model.
Gateway model does not need to revise Session Initiation Protocol, but requires client to flow with regard to receiving media after finishing once complete media negotiation offer/answer process, can send Media Stream under some applicable cases yet.And gateway model requires application server just to send Media Stream when finishing once complete media negotiation offer/answer, also can receiving media stream under some applicable cases.This means that P-CSCF need just open gate when the success of subscriber equipment (UE) resource reservation, rather than open gate again after the final response 200 of INVITE is returned by the time.
Below, with reference to Fig. 2 first embodiment under the gateway model, the resource reservation process of Calling Side Early media are described.
Step 201-203, UE#1 initiate media negotiation (offer) in INVITE.
Step 204-207, P-CSCF receive to the Temporary Response (183) of INVITE request afterwards (183 can take back the answer as a result of media negotiation) begin to carry out the authentication of QoS resource.Initiate authentication request (Auth Request) to PDF, after authentication was passed through, PDF replied ACK message relevant authentication-tokens (AuthToken) is taken back.
Step 208-214, P-CSCF brings UE#1 with relevant authentication-tokens in 183.UE#1 receives 183 back initiation resource reservation processes.This resource reservation process is by finishing with IP carrying Access Network bottom entity interaction.The BRAS that SGSN/GGSN, the xDSL that IP carrying Access Network bottom entity such as UMTS insert inserts etc., not shown in Fig. 2.
Step 215-222 sends resource reservation success (UPDATE) message informing callee after the success of UE#1 resource reservation.P-CSCF receives after the response of callee to this message, opens gate (Open Gate) message to the PDF transmission and begins session to open gate.
Subsequent step is identical with IMS normal resource reservation procedure, repeats no more here.
Below, with reference to Fig. 3 second embodiment under the gateway model, the resource reservation process of callee side Early media are described.
Step 301-304, P-CSCF receive that having media negotiation provides after the INVITE of (offer), generate medium authentication-tokens (Auth Request) to the PDF request.After request was passed through, PDF replied ACK message relevant authentication-tokens (Auth Token) is taken back.
Step 305-308, P-CSCF brings UE#2 with relevant authentication-tokens in the INVITE request.UE#2 sends the resource reservation process is initiated in Temporary Response (183) back of INVITE request, 183 answer as a result that can take media negotiation.This resource reservation process is by finishing with IP carrying Access Network bottom entity interaction.The BRAS that SGSN/GGSN, the xDSL that IP carrying Access Network bottom entity such as UMTS insert inserts etc., not shown in Fig. 3.
Step 309-319, P-CSCF receive from UE#2 183 after, send according to the situation of answer and to revise (Modify) message and carry out the modification of resource.
Step 320-324 sends 200 (OK) response to the UPDATE request after the success of UE#2 resource reservation.P-CSCF receives after this response, opens gate (Open Gate) message to the PDF transmission and begins session to open gate.
The step 206 and 221 of first embodiment under the gateway model is made amendment and replaced, just formed the 3rd embodiment.UE# 1 directly relevant media resource when the application token is set to open (message 206).So just not needing to open gate message (message 221) by transmission comes order PDF to open gate.
The step 303 and 323 of second embodiment under the gateway model is made amendment and replaced, just formed the 4th embodiment.UE#2 directly relevant media resource when the application token is set to open (message 303).So just not needing to open gate message (message 323) by transmission comes order PDF to open gate.
Another kind of situation is the QoS resource reservation under the application server model.
The application server model extension Session Initiation Protocol, in the SIP conversation message, increased the SDP of an early-session.This SDP is used for the negotiation of Early media separately, also adopts offer/answer mechanism to carry out media negotiation.Therefore, for the application server model, may have two SDP message body simultaneously in the conversation message, one is used for the Early media session, and one is used for formal session, and these two SDP hold consultation with offer/answer mechanism respectively.
Because may have two SDP simultaneously in the conversation message, so P-CSCF need consider the information of these two SDP simultaneously when carrying out resource reservation.Specifically, P-CSCF need send to PDF with the intersection of Early media SDP and formal medium SDP when the token application; And before the final response (200) of receiving the INVITE request is returned, when whenever finishing the offer/answer process of an Early media, all to send the message (Modify) of modification media resource to revise used media resource to PDF; When receiving final response (200), P-CSCF need send the message (Modify) of revising media resource to PDF, and notice PDF is made as down state with the Early media attribute, and formal medium are made as upstate.Should be pointed out that and receiving before 200 that formal medium also may be consulted, and at this moment will write the modification situation of formal medium down.When formal media session was set up, when promptly receiving final response 200 (INVITE), the formal media information with this storage utilized the Modify information updating to go down again.
Below, with reference to Fig. 4 first embodiment under the application server model, the reservation procedure of Calling Side Early media resource are described.
Step 401-403 carries formal medium in the INVITE request that UE# 1 initiates (offer) is provided information.
When step 404-408, callee reply the Temporary Response (183) of INVITE request, the offer information of replying (answer) information and Early media that it has carried formal medium in 183.After P-CSCF receives, the intersection of formal media information and Early media information is sent to PDF carry out the application of QoS token.
At step 409-411, UE# 1 replys the PRACK request to realize that the answer information of Early media is carried in this request, and carries out resource reservation according to the QoS token to the affirmation of 183 responses.Notice that the resource reservation process that UE# 1 initiates is with IP carrying Access Network bottom entity interaction, the BRAS that SGSN/GGSN, the xDSL that IP carrying Access Network bottom entity inserts such as UMTS inserts etc. are not shown in Fig. 3.
At step 412-413, after P-CSCF receives PRACK from UE# 1, send according to the situation of answer and to revise (Modify) message and carry out the modification of resource.
Step 414-424, after resource reservation was finished, UE# 1 sent the UPDATE message of representing the resource reservation success, when P-CSCF receives the callee to the response (200) of UPDATE, P-CSCF send open gate message to PDF opening gate, and begin session.
Before the final response (200) of INVITE was returned, the early media negotiation of follow-up generation was identical with process described above with the QoS resource modifying of formal media negotiation.
Step 428-430, when receiving the final response 200 of INVITE, P-CSCF need send the message (Modify) of revising media resource to PDF, the Early media attribute is made as down state, and formal medium are made as upstate.
Below, with reference to Fig. 5 second embodiment under the application server model, the reservation procedure of callee side Early media resource are described.
Step 501-504, P-CSCF receive that having formal media negotiation provides after the INVITE of (offer), generate medium authentication-tokens (Auth Request) to the PDF request.After request was passed through, PDF replied ACK message relevant authentication-tokens (Auth Token) is taken back.
Step 506-508, UE#2 replys the Temporary Response (183) to the INVITE request, wherein carries (offer) information of replying (answer) information and Early media of formal medium.
Step 509-512, P-CSCF receive after the PRACK request of the Early media answer information of carrying that the calling party replys, and Early media information is included in modification (Modify) message sends to PDF, notify it to carry out the modification of resource.
Step 513-519, UE#2 return 200 (OK) response when receiving the PRACK request, and carry out resource reservation according to the QoS token.Attention, the resource reservation process that UE# 1 initiates are with IP carrying Access Network bottom entity interaction, and IP carrying Access Network bottom entity can be the SGSN/GGSN of UMTS access or the BRAS of xDSL access etc., and is not shown among Fig. 5.
Step 520-524, after resource reservation was finished, UE#2 sent 200 (OK) response of UPDATE request, when P-CSCF receives response (200) to UPDATE, P-CSCF send open gate message to PDF opening gate, and begin session.
Before the final response (200) of INVITE was returned, the early media negotiation of follow-up generation was identical with process described above with the QoS resource modifying of formal media negotiation.
Step 528-530, when receiving the final response 200 of INVITE, P-CSCF need send the message (Modify) of revising media resource to PDF, the Early media attribute is made as down state, and formal medium are made as upstate.
First and second embodiment under the above-mentioned application server model, the process of resource reservation under the different situation of the resource that the resource that only provides negotiation is determined when sending authentication request.In this case, P-CSCF transmission modification message informing PDF reserves according to the resource of consulting.And under the identical situation of resource that the resource of consulting is determined when sending authentication request, P-CSCF need not to send modification message.And, whenever carry out one time media negotiation in the follow-up flow process, just send Modify message one time.
The step 406 of first embodiment and 423 is made amendment under the application server model, has just formed the 3rd embodiment.UE# 1 directly relevant media resource when the application token is set to open (message 406).So just do not need to open gate message (message 423) order PDF and opened gate by transmission.
The step 503 of second embodiment and 523 is made amendment under the application server model, has just formed the 4th embodiment.UE#2 directly relevant media resource when the application token is set to open (message 503).So just do not need to open gate message (message 523) order PDF and opened gate by transmission.
Under the application server model first and the step 406 and 412 of the 3rd embodiment make amendment, just formed the 5th and the 6th embodiment.When PDF sends authentication request (message 406), the Early media and the intersection of formal medium are not sent out over, and, revised relevant media resource by modification message (message 412) then only with formal medium or only carry out the application of QoS token with Early media.Preferably, the information of the medium that qos requirement is higher among formal medium and the Early media is included in sends to PDF in the authentication request message.
Send the situation of opening gate message at P-CSCF, the present invention proposes a kind of resource reservation equipment of Early media, as shown in Figure 6.This equipment is positioned at the acting server of subscriber equipment such as on the P-CSCF, comprise the message detection device, be used to detect message that the acting server at place receives and instruct detecting when showing that resources for user equipment is reserved successful message to send to the resource opening device; Also comprise the resource opening device, be used for when receiving the instruction that this message detection device sends, will opening gate message and send to PDF.
At in application direct media resource situation of being set to open during token, the present invention also proposes a kind of resource reservation equipment of Early media, as shown in Figure 6.This equipment is positioned at the acting server of subscriber equipment such as on the P-CSCF, comprises the message detection device, is used to detect message that the acting server at place receives and sends instruction to the resource opening device when detecting the message that expression need apply for token; Also comprise the resource opening device, the information that is used for will opening resource when receiving the instruction that this message detection device sends is included in authentication request message and sends to PDF.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1, a kind of method for obligating resource of Early media, described Early media are the medium of exchange before formal session is set up, and this method may further comprise the steps:
First terminal of A1, calling is carried out first media negotiation with the calling opposite end, is the Early media reserved resource;
A2, acting server (P-CSCF) promptly send after first terminal resource is reserved successfully and open gate message, and (PDF) opens reserved resource by strategy decisive function;
A3, first terminal and the Early media session of calling out between the opposite end are set up.
2, the method for claim 1 is characterized in that described steps A 1 further comprises: before reserved resource, described acting server (P-CSCF) sends authentication request message to strategy decisive function (PDF).
3, method as claimed in claim 2, it is characterized in that described steps A 1 further comprises: when resource that the resource of first media negotiation is determined when sending authentication request not simultaneously or when after the resource of a media negotiation and first media negotiation resource not simultaneously, described acting server (P-CSCF) sends to strategy decisive function (PDF) with the modification message of reserved resource.
4, method as claimed in claim 2 is characterized in that described authentication request message comprises the intersection of formal medium and Early media information.
5, method as claimed in claim 2 is characterized in that described authentication request message comprises the information of formal medium or Early media.
6, method as claimed in claim 5 is characterized in that described authentication request message comprises the information of the medium that service quality QoS requirements is higher in formal medium and the Early media.
7, the method for claim 1 is characterized in that also comprising step:
When carrying out early media negotiation, described acting server notification strategy decision making function (PDF) is reserved according to the resource of current negotiation.
8, the method for claim 1 is characterized in that also comprising step:
When carrying out formal media negotiation, described acting server is preserved the resource information of consulting.
9, as claim 1 or 8 described methods, it is characterized in that also comprising step:
Described acting server (P-CSCF) is received when the final response (200) of request is set up in session, send modification message to strategy decisive function (PDF), the Early media attribute is made as down state and formal medium property is made as upstate, carry out resource reservation according to revising the formal media negotiation information that comprises in the message simultaneously.
10, a kind of method for obligating resource of Early media, described Early media are the medium of exchange before formal session is set up, and this method may further comprise the steps:
First terminal of B1, calling is carried out first media negotiation with the calling opposite end, and the acting server of first terminal (P-CSCF) sends authentication request message notification strategy decision making function (PDF) media resource and is set to open;
B2, first media negotiation are finished, and are the Early media reserved resource;
The Early media session between the opposite end is set up and called out to B3, first terminal.
11, method as claimed in claim 10, it is characterized in that described step B2 further comprises: when resource that the resource of first media negotiation is determined when sending authentication request not simultaneously or when after the resource of a media negotiation and first media negotiation resource not simultaneously, described acting server (P-CSCF) sends to strategy decisive function (PDF) with the modification message of reserved resource.
12, method as claimed in claim 11 is characterized in that described authentication request message comprises the intersection of formal medium and Early media information.
13, method as claimed in claim 11 is characterized in that described authentication request message comprises the information of formal medium or Early media.
14, method as claimed in claim 13 is characterized in that described authentication request message comprises the information of the medium that service quality QoS requirements is higher in formal medium and the Early media.
15, method as claimed in claim 10 is characterized in that also comprising step:
When carrying out early media negotiation, described acting server notification strategy decision making function (PDF) is reserved according to the resource of current negotiation.
16, method as claimed in claim 10 is characterized in that also comprising step:
When carrying out formal media negotiation, described acting server is preserved the resource information of consulting.
17, as claim 10 or 16 described methods, it is characterized in that also comprising step:
Described acting server (P-CSCF) is received when the final response (200) of request is set up in session, send modification message to strategy decisive function (PDF), the Early media attribute is made as down state and formal medium property is made as upstate, carry out resource reservation according to revising the formal media negotiation information that comprises in the message simultaneously.
18, a kind of resource reservation equipment of Early media, this equipment are positioned on the acting server (P-CSCF) of subscriber equipment, comprising:
The message detection device is used to detect message that the acting server at place receives and instructs detecting when showing that described resources for user equipment is reserved successful message to send to the resource opening device;
The resource opening device is used for will opening gate message when receiving the instruction that the message detection device sends and sends to strategy decisive function (PDF).
19, a kind of resource reservation equipment of Early media, this equipment are positioned on the acting server (P-CSCF) of subscriber equipment, comprising:
The message detection device is used to detect message that the acting server at place receives and sends instruction to the resource opening device when detecting the message that expression need apply for token;
The resource opening device, the information that is used for will opening resource when receiving the instruction that the message detection device sends is included in authentication request message and sends to strategy decisive function (PDF).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100482912A CN1996999B (en) | 2005-12-31 | 2005-12-31 | A media resource reservation method and device |
| PCT/CN2006/003818 WO2007076720A1 (en) | 2005-12-31 | 2006-12-31 | A control method and decive of media resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100482912A CN1996999B (en) | 2005-12-31 | 2005-12-31 | A media resource reservation method and device |
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| CN1996999A true CN1996999A (en) | 2007-07-11 |
| CN1996999B CN1996999B (en) | 2010-09-15 |
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| CN2005100482912A Expired - Fee Related CN1996999B (en) | 2005-12-31 | 2005-12-31 | A media resource reservation method and device |
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| WO (1) | WO2007076720A1 (en) |
Cited By (11)
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| WO2009046653A1 (en) * | 2007-09-30 | 2009-04-16 | Huawei Technologies Co., Ltd. | Method, device and system for policy control |
| CN101123593B (en) * | 2007-09-20 | 2010-06-09 | 中兴通讯股份有限公司 | Method for streaming implementation in media gateway control |
| CN101808371A (en) * | 2010-03-30 | 2010-08-18 | 重庆邮电大学 | IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation |
| CN101854616A (en) * | 2010-05-31 | 2010-10-06 | 中兴通讯股份有限公司 | Media negotiation method in call forwarding and call forwarding application server |
| CN101330650B (en) * | 2007-10-15 | 2011-05-25 | 中兴通讯股份有限公司 | Method for implementing association business wireless access load-bearing allocation |
| CN101291328B (en) * | 2008-05-30 | 2011-09-21 | 中兴通讯股份有限公司 | Calling status switching system and switching method in IP multimedia subsystem |
| WO2011143804A1 (en) * | 2010-05-17 | 2011-11-24 | 中兴通讯股份有限公司 | Method and system for rolling back media state |
| CN101378586B (en) * | 2007-08-27 | 2012-08-29 | 华为技术有限公司 | Method, device and system for controlling business data stream policy |
| WO2015192554A1 (en) * | 2014-06-20 | 2015-12-23 | 中兴通讯股份有限公司 | Method and system for media negotiation in voice call continuity service, and atcf |
| WO2017147959A1 (en) * | 2016-02-29 | 2017-09-08 | 宇龙计算机通信科技(深圳)有限公司 | Service carrying method, communication terminal, control element s-cscf and system |
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| US9717035B2 (en) * | 2014-04-24 | 2017-07-25 | Hughes Network Systems, Llc | Methods and system in supporting real time services with spectrum efficiency in a satellite network |
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| WO2002067533A1 (en) * | 2001-02-19 | 2002-08-29 | Nokia Corporation | Closing a sip active session |
| US7227865B2 (en) * | 2001-08-16 | 2007-06-05 | Interdigital Technology Corporation | Utilizing session initiation protocol for identifying user equipment resource reservation setup protocol capabilities |
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| CN1243432C (en) * | 2003-06-26 | 2006-02-22 | 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 |
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2005
- 2005-12-31 CN CN2005100482912A patent/CN1996999B/en not_active Expired - Fee Related
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2006
- 2006-12-31 WO PCT/CN2006/003818 patent/WO2007076720A1/en active Application Filing
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| WO2009046653A1 (en) * | 2007-09-30 | 2009-04-16 | Huawei Technologies Co., Ltd. | Method, device and system for policy control |
| CN101399768B (en) * | 2007-09-30 | 2011-04-20 | 华为技术有限公司 | Policy control method, device and system |
| CN101330650B (en) * | 2007-10-15 | 2011-05-25 | 中兴通讯股份有限公司 | Method for implementing association business wireless access load-bearing allocation |
| CN101291328B (en) * | 2008-05-30 | 2011-09-21 | 中兴通讯股份有限公司 | Calling status switching system and switching method in IP multimedia subsystem |
| CN101808371B (en) * | 2010-03-30 | 2012-07-11 | 重庆邮电大学 | IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation |
| CN101808371A (en) * | 2010-03-30 | 2010-08-18 | 重庆邮电大学 | IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation |
| WO2011143804A1 (en) * | 2010-05-17 | 2011-11-24 | 中兴通讯股份有限公司 | Method and system for rolling back media state |
| CN101854616A (en) * | 2010-05-31 | 2010-10-06 | 中兴通讯股份有限公司 | Media negotiation method in call forwarding and call forwarding application server |
| WO2015192554A1 (en) * | 2014-06-20 | 2015-12-23 | 中兴通讯股份有限公司 | Method and system for media negotiation in voice call continuity service, and atcf |
| WO2017147959A1 (en) * | 2016-02-29 | 2017-09-08 | 宇龙计算机通信科技(深圳)有限公司 | Service carrying method, communication terminal, control element s-cscf and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1996999B (en) | 2010-09-15 |
| WO2007076720A1 (en) | 2007-07-12 |
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