CN101009695A - A method and system for media negotiation - Google Patents
A method and system for media negotiation Download PDFInfo
- Publication number
- CN101009695A CN101009695A CN 200610033418 CN200610033418A CN101009695A CN 101009695 A CN101009695 A CN 101009695A CN 200610033418 CN200610033418 CN 200610033418 CN 200610033418 A CN200610033418 A CN 200610033418A CN 101009695 A CN101009695 A CN 101009695A
- Authority
- CN
- China
- Prior art keywords
- bandwidth
- resource
- user
- reality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H04L65/1069—Session establishment or de-establishment
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Multimedia (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The disclosed media negotiation method and system comprise: during media negotiating, the AF requires QoS source to PDF/SPDF according to multiple code types supported by both sides of some media flow dialogue, then the media negotiation selects one code type according to bandwidth supported by current network. It also discloses the AF, PDF/SPDF and A-RACF. This invention can improve success rate of building dialogue.
Description
Technical field
The present invention relates to the communication technology, particularly a kind of method and system of media negotiation.
Background technology
At present, continuous maturation along with group technology, develop based on Circuit-switched conventional telecommunication network towards broadband telecommunication net based on packet switching, concerning conventional telecommunication network, the call bearer that the user sets up is on the circuit that takies alone, as long as circuit is assigned to the calling that the user sets up, the service quality of this calling (QoS, Quality of Service) just can be guaranteed; But in the broadband telecommunication net, the call bearer that the user sets up is in the grouping passage of interim distribution, this calling only has been assigned with enough grouping passages (generally weighing as quantitative value with bandwidth), service quality just can be guaranteed, because being the grouping surface channel, one of characteristics of broadband packet net share to all users, the getable maximum bandwidth of user is that needs and operator are signatory simultaneously, when so obvious user initiates a calling, can not guarantee to be assigned to the bandwidth that enough foundation is called out, perhaps because the remaining grouping bandwidth chahnel of network is not enough, perhaps not enough because remain the bandwidth of usefulness not in user's available maximum bandwidth of contracting.
Therefore, in the broadband telecommunication net, must provide a cover mechanism to guarantee user's QoS service quality.
In order to realize QoS control, defined the framework of dynamic QoS policy control in the 3GPP normal structure, mainly comprise following network element:
Gateway: at the gateway that inserts between IP Connection Service and the IP multi-media network, as GGSN (Gateway GPRS Support Node, Gateway GPRS Support Node, GRPS-General PacketRadio Service, GPRS);
PDF (strategy decisive function: Policy Decision Function): carry out policy decision point, be responsible for the resource reservation/request for allocation of upper layer application is done response based on the local policy control of business.Also may initiatively report resource situation because network resource status changes to operation layer;
AF (application function: Application Function): the core key-course server in telecom operators or the service provider territory.AF initiates the request of IP bearing resource according to business demand to PDF.(the IP multimedia service subsystem: IP Multimedia CoreNetwork Subsystem) in the system, AF can be a P-CSCF (Proxy-Call Session Control Function entity: Proxy-Call Session Control Function) at the IMS of 3GPP normal structure definition.
Wherein, the interface between AF and the PDF is a Gq interface.
More detailed description can be referring to the relevant criterion manuscript of 3GPP normal structure definition, can be referring to 3GPP TS 29.209 standard manuscripts as the definition of Gq interface.
Organize the NGN (next generation network: Next Generation Network) in the framework of subordinate's TISPAN (Telecommunications and InternetConverged Services and Protocols for Advanced Networking) definition at etsi standard, PDF is called SPDF (Service-basedPolicy Decision Function again, strategy decisive function based on business), its basic function is consistent with the PDF of 3GPP definition.Because the business demand in fixed network field and access bearer and mobile field be difference to some extent, in the TISPAN standard interface between AF and PDF/SPDF is called Gq ' interface, inherit and difference to show.Simultaneously, provided the resource admission control subsystem (RACS of responsible Qos resource reservation/distribution among the TISPAN, Resource Admission Control Subsystem) framework, to finish control, distribution, management function based on the bearer network resource of business demand, guarantee professional service quality, as shown in Figure 1.
Resource admission control subsystem comprises SPDF and two logical nes of Access-Resource and Admission Control Function, wherein, Access-Resource and Admission Control Function (Access-Resource and Admission Control Function, access-resource admission control function) provides admission control function, receive Qos resource (as bandwidth) request by Rq from SPDF, carry out access control according to information such as relevant access network resource and user's QoS are signatory, return the whether information of access of resource to SPDF by Rq.User's QoS CAMEL-Subscription-Information is stored among the NASS (Network Attachment Subsystem, Network Attachment Subsystem) as inserting signatory bandwidth etc., and Access-Resource and Admission Control Function can obtain by the E4 interface.
About RACS and two subsystems of NASS and Gq ' interface, the more detailed description of Rq and E4 interface can be referring to the relevant criterion manuscript of TISPAN definition, also can be referring to ITU-T normal structure relevant criterion manuscript to the definition of QoS framework in NGN, in the definition of ITU-T, RACS is called as RACF (Resource and Admission Control Function, the resource admission control function), NASS is called as NAAF (Network Access Attachment Function, the network insertion attached function), can be as Gq ' interface referring to the ETSI TS 183 017 standard manuscripts of TISPAN, Rq can be referring to ETSI ES 283 026 standard manuscripts of TISPAN etc.
Pass through Gq/Gq ' interface, AF asks QoS resource reservation/distribution to PDF/SPDF according to business demand when session is set up, PDF/SPDF transmits resource reservation/request for allocation by Rq to Access-Resource and Admission Control Function, and obtains the relevant information whether resource that Access-Resource and Admission Control Function returns allows access.PDF/SPDF is according to accepting or the refusal resource request based on information such as the local policy of operator and/or user's signatory strategy and conventional network resources situations.Wherein, the conventional network resources situation can be: obtainable bandwidth, network service type (as voice, video, Streaming Media, data etc.) etc. in the network.
Set up in the process in session, (resource that refers to session needs is the maximum resource of session needs to AF generally speaking according to the QoS resource of service request from user decision session needs.Can select multiple code encoding/decoding mode as Media Stream in the session, the bandwidth difference that different code encoding/decoding modes need, the bandwidth demand of the maximum that selection here needs), AF passes through Gq/Gq ' interface and initiates the QoS resource request to PDF/SPDF.If the QoS resource request is authorized in PDF/SPDF arbitration back decision, then pass through Gq/Gq ' and send success response to AF, reservations/Resources allocation simultaneously, AF continues session foundation; Otherwise, sending failure response to AF, AF removes session.
For instance, session is set up in calling subscriber's request, provides multiple code encoding/decoding mode in the media description of request message, consults fixed a kind of encoding and decoding decision greatest requirements bandwidth according to conversation media, as 2M.Concrete negotiations process is: the called subscriber receives conversation request, return the code encoding/decoding mode that carries called support in the answer code, after the calling subscriber receives answer code, if when finding that code encoding/decoding mode that both sides support is more than one, wherein a kind of code encoding/decoding mode (generally being to choose the wherein code encoding/decoding mode of bandwidth demand maximum) is taked in decision.
The resource request message that AF will carry greatest requirements bandwidth (2M) passes through Gq/Gq ' interface and sends to PDF/SPDF, if existing network bandwidth resources deficiency is found in PDF/SPDF arbitration back, might be that Internet resources are not enough, such as the only remaining 200K bandwidth (as Fig. 2) of Internet resources; Also might be that PDF/SPDF is further decomposing resource requirement, issuing the Access-Resource and Admission Control Function request inserts side and carries out the resource access when judging, Access-Resource and Admission Control Function calculates user's available bandwidth deficiency (such as user's available bandwidth 200K according to the signatory bandwidth information of user and the current network bandwidth that used of user, less than the largest request bandwidth, as Fig. 3), then directly return the resource request failed message, wherein carry failure cause: inadequate resource, AF discharges session.
If PDF/SPDF arbitration back discovery can be satisfied user's QoS resource request, then return success message, AF continues session and sets up.
Specific to Gq/Gq ' and Rq, sending to PDF/SPDF and PDF/SPDF at AF sends to the AAR of Access-Resource and Admission Control Function (AA-Request Command: the Authentication Authorization request command), Max-Requested-Bandwidth-UL AVP and Max-Requested-Bandwidth-DL AVP represents the maximum upstream bandwidth and the maximum downstream bandwidth of conversation request; Return to AAA (the AA-Answer Command: the Authentication Authorization acknowledgement command), only return the Indication message of asking successfully or failing that PDF/SPDF and PDF/SPDF return to AF at Access-Resource and Admission Control Function.
Wherein, AVP (attribute-value pair, the property value group) is the set of one or one group property parameters of expression in the Diameter, and Gq/Gq ' and Rq and aforesaid E4 interface all are based on Diameter, in the Diameter order one or more AVP parameters can be arranged.
Adopt said method, in the time can selecting multiple code encoding/decoding mode to medium streaming session both sides in the session, to consult the bandwidth demand of fixed a kind of encoding and decoding decision according to conversation media to the RACS request, such as certain medium streaming session both sides being supported two kinds of code/decode types of A, B, required respectively bandwidth corresponds to 2M and 100K, after consulting, conversation media selected the A encoding and decoding, AF is to PDF/SPDF request 2M bandwidth, PDF/SPDF arbitration back finds that the existing network bandwidth is not enough, have only the 200K bandwidth, then session will be released.If but obviously AF is to the required 100K bandwidth of PDF/SPDF request B encoding and decoding, session will successfully be set up.
Consult a kind of code/decode type required bandwidth of back by AF at conversation media according to certain selected Media Stream, to PDF/SPDF request QoS resource, so only when the transmission network satisfies this bandwidth requirement of session, session just may successfully be set up, otherwise session teardown, the success rate that causes session to be set up is not high.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of media negotiation.
For achieving the above object, the invention provides a kind of method of media negotiation, comprise following steps:
Steps A: AF sends first resource request message to PDF/SPDF, described PDF/SPDF receives described first resource request message, send second resource request message to Access-Resource and Admission Control Function, described first resource request message and described second resource request message carry the bandwidth request range parameter of medium type;
Step B: the user that described Access-Resource and Admission Control Function analysis is met described bandwidth request scope can obtain bandwidth inserting side, and is carried in the described second resource request response message and is sent to described PDF/SPDF;
Step C: described PDF/SPDF can obtain bandwidth according to described user inserting side, analyzes the user's reality that is met described bandwidth request scope and can obtain bandwidth, and be carried in the described first resource request response message and be sent to described AF;
Step D: described AF receives the described first resource request response message, and determines/adjust the code encoding/decoding mode of described medium type according to the obtainable actual bandwidth of described user.
Wherein, described bandwidth request range parameter can be: the bandwidth request tabulation, and described bandwidth request list entry comprises bandwidth on demand;
In such cases, in step B, described Access-Resource and Admission Control Function compares described user in order successively at each list item that the access side can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user in the access side, then Access-Resource and Admission Control Function can obtain the bandwidth on demand that bandwidth is adjusted into described list item with described user in the access side;
Or
Among the step B, described Access-Resource and Admission Control Function directly can obtain bandwidth with described user in the access side and send to described PDF/SPDF.
Equally, step C, D also have 2 kinds of modes of operation:
Among the step C, PDF/SPDF compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then PDF/SPDF can obtain the bandwidth on demand that bandwidth is adjusted into described list item with user's reality;
Among the step D, AF can obtain the code encoding/decoding mode that bandwidth is determined coupling according to described user's reality.
Or
Among the step C, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step D, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then determine the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
Wherein, described bandwidth request range parameter can comprise largest request bandwidth and minimum bandwidth on demand;
At this moment, among the step B, Access-Resource and Admission Control Function directly can obtain bandwidth with described user in the access side and send to PDF/SPDF;
Among the step C, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step D, AF compares in order successively according to the demand bandwidth that described user's reality can obtain each code encoding/decoding mode correspondence of bandwidth and described medium type, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then determine the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
Or
Among the step B, described Access-Resource and Admission Control Function obtains described user and can obtain bandwidth in the access side according to the QoS of customer CAMEL-Subscription-Information and the current network bandwidth that used of user; The QoS of customer CAMEL-Subscription-Information comprises and inserts signatory bandwidth, and described user can obtain bandwidth signatory bandwidth and user are current to have used the poor of the network bandwidth in order to insert inserting side.
Described user's reality can obtain bandwidth, and can be described PDF/SPDF can obtain bandwidth, obtain described user's reality based on the analyses such as policing rule of operator and can obtain bandwidth inserting side according to existing resource situation, described user.
In the said method, described first and second resource request messages are the AAR order, and the described first and second resource request response messages are the AAA order.
The invention provides the method for another kind of media negotiation, may further comprise the steps:
Steps A: AF sends resource request message to PDF/SPDF, and described resource request message carries the bandwidth request range parameter of medium type;
Step B: described PDF/SPDF receives described resource request message, analyzes the user's reality that is met described bandwidth request scope and can obtain bandwidth, is carried on and is sent to described AF in the resource request response message;
Step C: described AF receives described resource request response message, and can obtain bandwidth according to described user's reality and determine/adjust the code encoding/decoding mode of described medium type.
Wherein, described bandwidth request range parameter is the bandwidth request tabulation, and described bandwidth request list entry comprises bandwidth on demand;
In such cases, among the step B, PDF/SPDF compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then PDF/SPDF can obtain the bandwidth on demand that bandwidth is adjusted into described list item with user's reality;
Among the step C, AF can obtain the code encoding/decoding mode that bandwidth obtains coupling according to described user's reality.
Or
Among the step B, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step C, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then obtain the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
Wherein, described bandwidth request range parameter is to comprise largest request bandwidth and minimum bandwidth on demand.
In this case, among the step B, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step C, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then obtain the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
In the said method, described user's reality can obtain bandwidth to be described PDF/SPDF according to the conventional network resources situation and to obtain based on operator and/or user's etc. policing rule analysis;
Described resource request message is the AAR order, and described resource request response message is the AAA order.
The present invention also provides a kind of system of media negotiation, comprises AF, PDF/SPDF:
Described PDF/SPDF receives first resource request message that AF sends, described first resource request message carries the bandwidth request range parameter of medium type, user's reality is obtained in analysis can obtain bandwidth, and satisfied being carried in the first resource request response message is sent to described AF if described user's reality can obtain bandwidth;
Described AF can obtain bandwidth according to described user's reality and determine/adjust the code encoding/decoding mode of described medium type.
Wherein, described user's reality can obtain bandwidth by described PDF/SPDF by comprehensive conventional network resources situation, obtain based on operator and/or based on user's etc. policing rule analysis.
Described system can also comprise Access-Resource and Admission Control Function, described PDF/SPDF sends second resource request message to Access-Resource and Admission Control Function, described Access-Resource and Admission Control Function obtains the user can obtain bandwidth inserting side, and described user can be obtained bandwidth and is carried in the second resource request response message and is sent to described PDF/SPDF inserting side.
The present invention also provides a kind of Application Function, comprises AF transmitting element, AF receiving element, AF resource decision unit;
Described AF transmitting element sends resource request message to the PDF/SPDF entity, and described AF receiving element receives the resource request response message that PDF/SPDF sends, and carries the bandwidth request range parameter of medium type in the described resource request message;
Described resource request response message carries the current bandwidth that obtains of user;
The current code encoding/decoding mode that obtains bandwidth match of described user is selected according to the current bandwidth that obtains of described user in described AF resource decision unit in described medium type.
The present invention also provides a kind of PDF/SPDF entity, comprises PDF transmitting element, PDF receiving element, PDF resource decision unit;
Described PDF receiving element receives first resource request message that AF sends, and described first resource request message carries the bandwidth request range parameter;
Described PDF resource decision element analysis obtains user's reality can obtain bandwidth, more described bandwidth request range parameter and described user's reality can obtain bandwidth, satisfy described bandwidth request range parameter if described user's reality can obtain bandwidth, described transmitting element can obtain bandwidth with described user's reality and be sent to AF;
Described PDF resource decision unit is according to the conventional network resources situation, based on operator and/or obtain described user's reality based on user's policing rule analysis and can obtain bandwidth;
Described transmitting element sends second resource request message to Access-Resource and Admission Control Function, and described second resource request message carries the bandwidth request range parameter;
Described receiving element receives the second resource request response message that described Access-Resource and Admission Control Function sends; The described second resource request response message carries the user can obtain bandwidth in the access side;
Described PDF resource decision unit according to described user insert side can obtain bandwidth, conventional network resources situation, based on operator and/or obtain described user's reality based on user's policing rule analysis and can obtain bandwidth.
Especially, described bandwidth request range parameter is the bandwidth on demand tabulation, described PDF resource decision unit compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, bandwidth can be obtained if the bandwidth on demand of described list item satisfies described user's reality, then described user's reality the bandwidth on demand that bandwidth is adjusted into described list item can be obtained.
The present invention also provides a kind of Access-Resource and Admission Control Function entity, comprises Access-Resource and Admission Control Function transmitting element, Access-Resource and Admission Control Function receiving element, Access-Resource and Admission Control Function resource decision unit;
Described receiving element receives second resource request message that PDF/SPDF sends, and described second resource request message carries the bandwidth request range parameter;
Described Access-Resource and Admission Control Function resource decision element analysis obtains the user can obtain bandwidth in the access side;
Described transmitting element sends the second resource request response message to described PDF/SPDF, wherein carries described user and can obtain bandwidth in the access side.
Wherein, described Access-Resource and Admission Control Function resource decision unit has used network bandwidth analysis to obtain the user can to obtain bandwidth inserting side according to QoS of customer CAMEL-Subscription-Information and user are current.
Especially, described bandwidth request range parameter is the bandwidth on demand tabulation, described Access-Resource and Admission Control Function resource decision unit compares described user in order successively at each list item that the access side can obtain in bandwidth and the bandwidth on demand tabulation, bandwidth can be obtained if the bandwidth on demand of described list item satisfies described user in the access side, then described user the bandwidth on demand that bandwidth is adjusted into described list item can be obtained in the access side.
Because AF can so can make corresponding adjustment to the resource requirement of already-existing session, can directly discharge session by obtaining the bandwidth resources information of network alternately with PDF/SPDF, Access-Resource and Admission Control Function, improved the success rate that session is set up.
Description of drawings
Fig. 1 is the dynamic Q os policy control architecture schematic diagram of prior art TISPAN definition:
Fig. 2, the 3rd, prior art media negotiating process figure;
Fig. 4, the 5th, the media negotiating process figure of specific embodiment one;
Fig. 6, the 7th, the media negotiating process figure of specific embodiment two.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core of the present invention is that PDF/SPDF receives the resource request message that AF sends, and this resource request message carries the bandwidth request range parameter; PDF/SPDF analyze to obtain user's reality can obtain bandwidth, and user's reality that can satisfy described bandwidth request scope can obtain bandwidth and be carried on and be sent to described AF in the resource request response message; AF receives described resource request response message, and can obtain bandwidth according to described user's reality and determine/adjust code encoding/decoding mode.
Wherein resource request message is the AAR order, and the resource request response message is the AAA order; The bandwidth request range parameter is carried in the resource request message by the mode of the AVP of expansion.
As previously mentioned, prior art adopts advanced guild words media negotiation to determine code encoding/decoding mode, carries out the mode of QoS resource request again.Promptly certain medium streaming session both sides is supported a plurality of code/decode types, when conversation media is consulted selected wherein a kind of code/decode type, whether do not understand the required bandwidth request of this code encoding/decoding mode can be met, in case and this bandwidth request is not being met in PDF/SPDF carries out the process of QoS resource request at AF, then session can only be released.Be created as power in order to improve session, the present invention requires AF to carry out the process participation of QoS resource request and influence the conversation media negotiations process to PDF/SPDF, when conversation media is consulted, AF promptly carries out the QoS resource request according to a plurality of code/decode types that certain medium streaming session both sides is supported to PDF/SPDFRACS, and the conversation media negotiations process will be according to the selected a kind of code/decode type of the bandwidth demand that current transmission network can be supported.
The concrete handling process of resource request is described below by specific embodiment.
Specific embodiment one:
The present invention is based on the information expansion of definition to transmitting on Gq/Gq ', the Rq of present standard:
Two AVP parameters of 1 expansion: Min-Requested-Bandwidth-UL AVP, Min-Requested-Bandwidth-DL AVP, the minimum upstream bandwidth and the minimum downlink bandwidth of expression request respectively.These two AVP parameters need all be expanded at Gq/Gq ' and Rq
AF obtains the code encoding/decoding mode common factor that the session both sides support certain medium type in media consultation process, if this common factor has comprised more than one code encoding/decoding modes, then the value of Min-Requested-Bandwidth-UL AVP, Min-Requested-Bandwidth-DL AVP is respectively the minimum upstream bandwidth and the minimum downlink bandwidth of the code encoding/decoding mode correspondence of bandwidth demand minimum.
Min-Requested-Bandwidth-UL AVP, Min-Requested-Bandwidth-DL AVP value are no symbol 32bit position integers, and AVP sign indicating number (AVP Code) is an integer value, as 530.
＂ V ＂ bit is carried in Min-Requested-Bandwidth-UL AVP, Min-Requested-Bandwidth-DL AVP suggestion, represents that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; " bit, expression can carry out End-to-End Security and encrypt can to carry ＂ P.
Two AVP parameters of 2 expansions: Available-Access-Bandwidth-UL AVP, Available-Access-Bandwidth-DL AVP represents that the active user can obtain upstream bandwidth and downlink bandwidth inserting side, and this bandwidth value can insert signatory bandwidth and the current utilized bandwidth of user calculates according to the user.These two AVP expand in Rq, can be at RAR (Re-Auth-RequestCommand: the re-authorization request command) and in the AAA order carry.
The value of Available-Access-Bandwidth-UL AVP and Available-Access-Bandwidth-DLAVP is a no symbol 32bit position integer, and the AVP sign indicating number is an integer value, as 533.
These two AVP parameter recommendations carry ＂ V ＂ bit, represent that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; Can carry ＂ P ＂ bit, expression can be carried out End-to-End Security and encrypt.
Two AVP parameters of 3 expansions: Available-Bandwidth-UL AVP, Available-Bandwidth-DL AVP, the expression user can obtain upstream bandwidth and downlink bandwidth, and its value is that user's reality that the PDF/SPDF integrated decision-making obtained, returned to AF can obtain bandwidth.These two AVP parameters are expanded in Gq/Gq ' interface, can in RAR message and AAA message, carry,
Available-Bandwidth-UL AVP, Available-Bandwidth-DL AVP value are no symbol 32bit position integers, and the AVP sign indicating number is an integer value, as 532.
These two AVP parameter recommendations carry ＂ V ＂ bit, represent that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; Can carry ＂ P ＂ bit, expression can be carried out End-to-End Security and encrypt.
At first with reference to shown in Figure 4, media negotiating process is as follows:
When session was set up, the calling and called both sides consulted both sides and support code encoding/decoding mode all in the specific code/decode type (be that code encoding/decoding mode occurs simultaneously, can comprise multiple code encoding/decoding mode, the concrete same prior art of negotiations process).AF sends AAR and orders to PDF/SPDF, wherein carry Max-Requested-Bandwidth-UL AVP/Max-Requested-Bandwidth-DL AVP, two pairs of parameters of Min-Requested-Bandwidth-UL AVP/Min-Requested-Bandwidth-DL AVP, represent that respectively largest request bandwidth in the code encoding/decoding mode common factor is (as being 2M, comprise largest request upstream bandwidth and largest request downlink bandwidth, be respectively 2M, 2M), minimum bandwidth on demand is (as being 100K, comprise minimum request upstream bandwidth and minimum request downlink bandwidth, be respectively 100K, 100K).From as can be seen last, largest request bandwidth and minimum bandwidth on demand parameter have been indicated the bandwidth request scope to the code encoding/decoding mode common factor of certain medium type.
After PDF/SPDF receives the AAR order, send an AAR order again to Access-Resource and Admission Control Function, carry out resource request by Rq.
Access-Resource and Admission Control Function is resolved from AAR and is obtained Max-Requested-Bandwidth-ULAVP/Max-Requested-Bandwidth-DL AVP, Min-Requested-Bandwidth-ULAVP/Min-Requested-Bandwidth-DL AVP, analyzes this QoS resource request.Access-Resource and Admission Control Function is according to the QoS of customer CAMEL-Subscription-Information (inserting signatory bandwidth etc. as the user) and the current network bandwidth that used of user, analysis draws the user can obtain bandwidth (as being 200K in the access side, comprise that the user can obtain downlink bandwidth at access obtainable upstream bandwidth of side and user in the access side, is respectively 200K, 200K).If the user can obtain bandwidth less than the largest request bandwidth in the access side, and, illustrate that then the user can obtain bandwidth in the access side and can satisfy the bandwidth request scope greater than minimum bandwidth on demand.Access-Resource and Admission Control Function carries expression Available-Access-Bandwidth-ULAVP/Available-Access-Bandwi dth-DL AVP in the AAA that PDF/SPDF returns, the user can obtain bandwidth in the access side, and (this example is 200K, comprise that the user can obtain upstream bandwidth and user and can obtain downlink bandwidth inserting side inserting side, is respectively 200K, 200K).
PDF/SPDF receives AAA by Rq, takes all factors into consideration the conventional network resources situation simultaneously, makes a strategic decision based on the local policy rule of operator and/or user's signatory policing rule etc.If other condition all satisfies, then pass through to carry Available-Bandwidth-UL AVP/Available-Bandwidth-DL AVP in the AAA message that Gq/Gq ' interface returns, the current bandwidth that obtains of expression user (is 200K in this example, comprise current upstream bandwidth and the current downlink bandwidth that obtains of user of obtaining of user, be respectively 200K, 200K).
AF receives the AAA response, then can obtain bandwidth according to user's reality, from aforesaid encoding and decoding are occured simultaneously, determine a kind of code encoding/decoding mode or the code encoding/decoding mode that bandwidth demand is not being met is adjusted into the code encoding/decoding mode that bandwidth demand can be satisfied, continue session and set up process.Specifically, AF user's reality can be able to be obtained bandwidth in order according to and the demand bandwidth of each code encoding/decoding mode time relatively, if, then determine to adopt this code encoding/decoding mode continuation session to set up process more than or equal to the demand bandwidth of the code encoding/decoding mode that compare.
In the such scheme, PDF/SPDF carries out resource request by Rq to Access-Resource and Admission Control Function after receiving the AAR order.If by Access-Resource and Admission Control Function, and PDF/SPDF directly by comprehensive conventional network resources situation, draw user's reality based on the local policy rule of operator and/or user's analyses such as signatory policing rule and can obtain bandwidth.As shown in Figure 5, if user's reality can obtain bandwidth less than the largest request bandwidth, and greater than minimum bandwidth on demand, then PDF/SPDF judges user's reality and can obtain bandwidth and can satisfy the bandwidth request scope, pass through Gq/Gq ' interface and carry Available-Bandwidth-UL AVP/Available-Bandwidth-DL AVP in returning the AAA of AF, expression user reality can obtain bandwidth.AF receives the AAA response, adopts the method for scheme correspondence shown in Figure 4 to determine that this code encoding/decoding mode continues session and sets up process.
Specific embodiment two, shown in Fig. 6,7:
Present embodiment is taked the information expansion of another mode to transmitting on Gq/Gq ', the Rq:
Two AVP:Requested-Bandwidth-List-UL AVP of 1 expansion, Requested-Bandwidth-List-DL AVP, the medium code encoding/decoding mode that the both sides that obtain in the presentation medium negotiations process respectively support occur simultaneously corresponding needed uplink bandwidth request tabulation and downlink bandwidth request list, if the medium code encoding/decoding mode that both sides support has when multiple, and prioritization is arranged, then Dui Ying upstream bandwidth and downlink bandwidth demand also are multiple, can provide by a tabulation.Requested-Bandwidth-List-UL AVP, Requested-Bandwidth-List-DL AVP need expand at Gq/Gq ' and Rq.
Requested-Bandwidth-List-UL AVP, Requested-Bandwidth-List-DL AVP value is one group of bandwidth list parameter, corresponding bandwidth parameter of each list item in the tabulation, a code encoding/decoding mode during the corresponding code encoding/decoding mode of each bandwidth parameter occurs simultaneously, it is a no symbol 32bit position integer, the AVP sign indicating number is an integer value, as 534.
Requested-Bandwidth-List-UL AVP, ＂ V ＂ bit is carried in Requested-Bandwidth-List-DL AVP suggestion, represents that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; Can carry ＂ P ＂ bit, expression can be carried out End-to-End Security and encrypt.
2 expansions two AVP:Reserved-Access-Bandwidth-UL AVP, Reserved-Access-Bandwidth-DL AVP, represent the highest upstream bandwidth and the downlink bandwidth of the available priority of current access network, Access-Resource and Admission Control Function inserts signatory bandwidth according to the user and the current network bandwidth that used of user relatively obtains the current available bandwidth of user, obtains with above-mentioned bandwidth request list match again.These two AVP expand at Rq, can carry in RAR message and AAA message.
These two AVP values are no symbol 32bit position integers, and the AVP sign indicating number is an integer value, as 536.
＂ V ＂ bit is carried in these two AVP suggestions, represents that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; Can carry ＂ P ＂ bit, expression can be carried out End-to-End Security and encrypt.
3 expansions two AVP:Reserved-Bandwidth-UL AVP, Reserved-Bandwidth-DLAVP, available Requested-Bandwidth-List-UL AVP, the highest bandwidth value of Requested-Bandwidth-List-DL AVP medium priority of meeting of expression current network, this value is that the PDF/SPDF integrated decision-making obtains, on Gq/Gq ' interface, expand, can in RAR message and AAA message, carry
These two AVP values are no symbol 32bit position integers, and the AVP sign indicating number is an integer value, as 537.
＂ V ＂ bit is carried in these two AVP suggestions, represents that this AVP is a vendor specific; ＂ M ＂ bit is not carried in suggestion, is the optional identification of information receiver; Can carry ＂ P ＂ bit, expression can be carried out End-to-End Security and encrypt.
When session was set up, the calling and called both sides consulted both sides and support code encoding/decoding mode all in the specific code/decode type (be that code encoding/decoding mode occurs simultaneously, can comprise multiple code encoding/decoding mode, the concrete same prior art of negotiations process).AF sends AAR and orders to PDF/SPDF, wherein carry Requested-Bandwidth-List-UL AVP, a pair of parameter of Requested-Bandwidth-List-DL AVP, the expression code encoding/decoding mode occurs simultaneously corresponding needed bandwidth request tabulation (as 2M, 100K, 200K, 1M, priority reduces successively, comprise tabulation of upstream bandwidth bandwidth and the tabulation of downlink bandwidth bandwidth, the tabulation of upstream bandwidth bandwidth is identical with the tabulation of downlink bandwidth bandwidth generally speaking, and the tabulation of upstream bandwidth bandwidth is also identical with the tabulation of downlink bandwidth bandwidth in this example).From as can be seen last, the bandwidth request scope to the code encoding/decoding mode common factor of certain medium type has been indicated in the bandwidth request tabulation.
After PDF/SPDF receives the AAR order, send an AAR order again to Access-Resource and Admission Control Function, carry out resource request by Rq.
Access-Resource and Admission Control Function is resolved from AAR and is obtained Requested-Bandwidth-List-UL AVP, and Requested-Bandwidth-List-DL AVP analyzes this QoS resource request.Access-Resource and Admission Control Function is according to the QoS of customer CAMEL-Subscription-Information (inserting signatory bandwidth etc. as the user) and the current network bandwidth that used of user, analysis draws the user can obtain bandwidth (as being 200K in the access side, comprise that the user can obtain downlink bandwidth at access obtainable upstream bandwidth of side and user in the access side, is respectively 200K, 200K).A-RAC reference bandwith request list, according to priority order compares analysis one by one, if the user can obtain bandwidth more than or equal to a certain bandwidth request list entry (in this example inserting side, press the request list order, 200K can obtain bandwidth less than first list item 2M bandwidth on demand, greater than second list item 100K bandwidth on demand), illustrate that then the user can obtain bandwidth in the access side and can satisfy the bandwidth request scope, the user can be obtained the bandwidth that bandwidth is adjusted into this list item in the access side.Access-Resource and Admission Control Function carries Reserved-Access-Bandwidth-UL AVP, Reserved-Access-Bandwidth-DL AVP in the AAA that PDF/SPDF returns, the expression user can obtain bandwidth in the access side and (be 100K in this example, uplink and downlink are 100K), be meant that specifically the user is inserting the highest bandwidth of the actual obtainable priority of side.Can see, here it is not that initial user (is 200K in this example inserting the side available bandwidth that the user who returns can obtain bandwidth actual in the access side, uplink and downlink are 200K), can obtain bandwidth but mate adjusted user in the access side according to user bandwidth request list priority.Certainly, Access-Resource and Admission Control Function also can mate the adjustment user can obtain bandwidth in the access side, will the 200K available bandwidth can obtain bandwidth and return to PDF/SPDF inserting side as the user, because PDF/SPDF also needs to mate adjustment, the method of adjusting is similar with it, and what compare is that user's reality that the PDF/SPDF analysis obtains can obtain bandwidth and user bandwidth request list.
PDF/SPDF receives the AAA order by Rq, the user is obtained in parsing can obtain bandwidth in the access side, takes all factors into consideration the conventional network resources situation simultaneously, can obtain bandwidth based on the local policy rule of operator and/or user's calculating such as signatory policing rule acquisition user reality.If other condition all satisfies, has only 100K and be authorized to available bandwidth, then PDF/SPDF can obtain bandwidth with user's reality and is adjusted into the family and can obtains bandwidth inserting side, pass through to add Reserved-Bandwidth-UL AVP, Reserved-Bandwidth-DL AVP in the AAA order that Gq/Gq ' interface returns, expression user reality can obtain bandwidth and (refer to the current the highest bandwidth of the obtainable priority of user of giving, be 100K in this example, uplink and downlink all are 100K).The PDF/SPDF coupling is adjusted user's reality can obtain bandwidth and user bandwidth request list, adjustment user reality can be mated and bandwidth can be obtained, and the user's reality that directly integrated decision-making is obtained can obtain bandwidth and is carried on user's reality and can obtains bandwidth and return to AF, by AF directly and the user bandwidth request list mate.
AF receives the AAA response, then can obtain bandwidth according to user's reality, from aforesaid encoding and decoding are occured simultaneously, determine a kind of code encoding/decoding mode or the code encoding/decoding mode that bandwidth demand is not being met is adjusted into the code encoding/decoding mode that bandwidth demand can be satisfied, continue session and set up process.Specifically, AF user's reality can be able to be obtained bandwidth in order according to and the demand bandwidth of each code encoding/decoding mode time relatively, if, then determine to adopt this code encoding/decoding mode continuation session to set up process more than or equal to the demand bandwidth of the code encoding/decoding mode that compare; If what AF obtained certainly is that PDF/SPDF matching request bandwidth tabulation adjustment user's reality later can obtain bandwidth, also can directly inquire about obtaining its corresponding code encoding/decoding mode.
In the such scheme, PDF/SPDF carries out resource request by Rq to Access-Resource and Admission Control Function after receiving the AAR order.If by Access-Resource and Admission Control Function, and PDF/SPDF is directly by comprehensive conventional network resources situation, can obtain bandwidth based on the local policy rule of operator and/or user's calculating such as signatory policing rule acquisition user reality.As shown in Figure 7, PDF/SPDF reference bandwith request list, according to priority order compares analysis one by one, if user's reality can obtain bandwidth more than or equal to a certain bandwidth request list entry, illustrate that then user's reality can obtain bandwidth and can satisfy the bandwidth request scope, user's reality can be obtained the bandwidth that bandwidth is adjusted into this list item, pass through to carry Reserved-Bandwidth-UL AVP in the AAA order that Gq/Gq ' interface returns, Reserved-Bandwidth-DL AVP, providing user's reality can obtain the bandwidth adjustment and (refer to the highest bandwidth of the obtainable priority of active user, be 100K in this example, the provisional capital is 100K up and down).AF receives the AAA response, adopts the method for scheme correspondence shown in Figure 6 to determine that this code encoding/decoding mode continues session and sets up process.
The difference of above-mentioned two embodiment is: in the specific embodiment one, in the QoS resource request that AF initiates, what carry is largest request bandwidth and minimum bandwidth on demand, has shown the bandwidth request scope that encoding and decoding that the session both sides support certain media categories are occured simultaneously; In the specific embodiment two, in the QoS resource request that AF initiates, what carry is the bandwidth request tabulation, has shown the bandwidth request scope that encoding and decoding that the session both sides support certain media categories are occured simultaneously, i.e. all bandwidth request.
In aforesaid two specific embodiments, the current bandwidth information that obtains that AF returns according to PDF/SPDF, determine or adjust a kind of code encoding/decoding mode, in the conversation media negotiations process, select with current and obtain the code/decode type that bandwidth information is mated, this process prior art can be supported, transmit definite or adjusted code/decode type as answer code, SIP PRACK message or SIP UPDATE message and their answer code by the SIP INVITE, the present invention is not described in detail.
In addition, need to prove, in general, upstream bandwidth is always identical with downlink bandwidth, therefore, the bandwidth parameter of expansion involved in the present invention, also can have only an AVP, and do not distinguish uplink and downlink bandwidth, insert the obtainable bandwidth of side as the active user at Access-Resource and Admission Control Function and can distinguish Available-Access-Bandwidth-UL AVP, Available-Access-Bandwidth-DL AVP, and only represent with an Available-Access-Bandwidth AVP parameter, the obtainable bandwidth of active user can be distinguished Available-Bandwidth-UL AVP, Available-Bandwidth-DLAVP, and only represent with an Available-Bandwidth AVP parameter.
In order to realize the present invention, need do necessary improvement to AF, PDF/SPDF, Access-Resource and Admission Control Function, the invention provides improved AF, PDF/SPDF, Access-Resource and Admission Control Function, as follows:
Application Function among the present invention (AF) comprises AF transmitting element, AF receiving element, AF resource decision unit;
Wherein, the AF transmitting element sends resource request message to PDF/SPDF, the AF receiving element receives the resource request response message that PDF/SPDF sends, and carries the bandwidth request range parameter of medium type in the resource request message, and the resource request response message carries the current bandwidth that obtains of user;
Furthermore, AF resource decision unit is according to the current bandwidth that obtains of user, in medium type, select with the user current obtain bandwidth match and code encoding/decoding mode.
PDF/SPDF entity among the present invention comprises PDF transmitting element, PDF receiving element, PDF resource decision unit;
Wherein, the PDF receiving element receives first resource request message that AF sends, and first resource request message carries the bandwidth request range parameter;
PDF resource decision element analysis obtains user's reality can obtain bandwidth, relatively bandwidth request range parameter and user's reality can obtain bandwidth, satisfy the bandwidth request range parameter if user's reality can obtain bandwidth, then transmitting element can obtain bandwidth with described user's reality and be sent to AF.
Described user's reality can obtain bandwidth following several acquisition mode:
PDF resource decision unit is according to the conventional network resources situation, based on operator and/or obtain described user's reality based on user's policing rule analysis and can obtain bandwidth;
Transmitting element sends second resource request message to Access-Resource and Admission Control Function, and second resource request message carries the bandwidth request range parameter; Receiving element receives the second resource request response message that described Access-Resource and Admission Control Function sends, wherein carry the user and can obtain bandwidth inserting side, PDF resource decision unit according to the user insert side can obtain bandwidth, conventional network resources situation, based on operator and/or obtain user's reality based on user's policing rule analysis and can obtain bandwidth.
Especially, bandwidth request range parameter among the present invention can be the bandwidth on demand tabulation, PDF resource decision unit compares each list item that user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, bandwidth can be obtained if the bandwidth on demand of the list item that is compared satisfies user's reality, then user's reality the bandwidth on demand that bandwidth is adjusted into described list item can be obtained.
Access-Resource and Admission Control Function entity among the present invention comprises transmitting element, receiving element, Access-Resource and Admission Control Function resource decision unit;
Receiving element receives second resource request message that PDF/SPDF sends, and wherein carries the bandwidth request range parameter;
Access-Resource and Admission Control Function resource decision unit has used network bandwidth analysis to obtain the user can to obtain bandwidth inserting side according to QoS of customer CAMEL-Subscription-Information and user are current;
Transmitting element sends the second resource request response message to PDF/SPDF, wherein carries the user and can obtain bandwidth in the access side.
Especially, the bandwidth request range parameter among the present invention can be that the bandwidth on demand tabulation can be the bandwidth on demand tabulation.At this moment, Access-Resource and Admission Control Function resource decision unit compares the user in order successively at each list item that the access side can obtain in bandwidth and the bandwidth on demand tabulation, bandwidth can be obtained if the bandwidth on demand of the list item that is compared satisfies the user in the access side, then the user bandwidth on demand that bandwidth is adjusted into described list item can be obtained in the access side.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (29)
1. the method for a media negotiation is characterized in that, said method comprising the steps of:
Steps A: AF sends first resource request message to PDF/SPDF, described PDF/SPDF receives described first resource request message, send second resource request message to Access-Resource and Admission Control Function, described first resource request message and described second resource request message carry the bandwidth request range parameter of medium type;
Step B: the user that described Access-Resource and Admission Control Function analysis is met the bandwidth request scope of described bandwidth request range parameter correspondence can obtain bandwidth inserting side, and is carried in the described second resource request response message and is sent to described PDF/SPDF;
Step C: described PDF/SPDF can obtain bandwidth according to described user inserting side, analyzes the user's reality that is met described bandwidth request scope and can obtain bandwidth, and be carried in the described first resource request response message and be sent to described AF;
Step D: described AF receives the described first resource request response message, and determines/adjust the code encoding/decoding mode of described medium type according to the obtainable actual bandwidth of described user.
2. method according to claim 1 is characterized in that, described bandwidth request range parameter is: the bandwidth request tabulation, described bandwidth request list entry comprises bandwidth on demand.
3. method according to claim 2, it is characterized in that, among the step B, described Access-Resource and Admission Control Function compares described user in order successively at each list item that the access side can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user in the access side, then Access-Resource and Admission Control Function can obtain the bandwidth on demand that bandwidth is adjusted into described list item with described user in the access side.
4. method according to claim 2 is characterized in that, among the step B, described Access-Resource and Admission Control Function directly can obtain bandwidth with described user in the access side and send to described PDF/SPDF.
5. according to claim 3 or 4 described methods, it is characterized in that, among the step C, PDF/SPDF compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then PDF/SPDF can obtain the bandwidth on demand that bandwidth is adjusted into described list item with user's reality;
Among the step D, AF can obtain the code encoding/decoding mode that bandwidth is determined coupling according to described user's reality.
6. according to claim 3 or 4 described methods, it is characterized in that among the step C, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step D, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then determine the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
7. method according to claim 1 is characterized in that, described bandwidth request range parameter comprises largest request bandwidth and minimum bandwidth on demand;
Among the step B, Access-Resource and Admission Control Function directly can obtain bandwidth with described user in the access side and send to PDF/SPDF;
Among the step C, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step D, AF compares in order successively according to the demand bandwidth that described user's reality can obtain each code encoding/decoding mode correspondence of bandwidth and described medium type, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then determine the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
8. method according to claim 1 is characterized in that, among the step B, described Access-Resource and Admission Control Function obtains described user and can obtain bandwidth in the access side according to the QoS of customer CAMEL-Subscription-Information and the current network bandwidth that used of user; The QoS of customer CAMEL-Subscription-Information comprises and inserts signatory bandwidth, and described user can obtain bandwidth signatory bandwidth and user are current to have used the poor of the network bandwidth in order to insert inserting side.
9. according to the method for claim 1, it is characterized in that among the step C, described PDF/SPDF can obtain bandwidth, obtain described user's reality based on the analyses such as policing rule of operator and can obtain bandwidth inserting side according to existing resource situation, described user.
10. according to the method for claim 1, it is characterized in that,
Described first and second resource request messages are the AAR order, and the described first and second resource request response messages are the AAA order.
11. the method for a media negotiation is characterized in that, said method comprising the steps of:
Steps A: AF sends resource request message to PDF/SPDF, and described resource request message carries the bandwidth request range parameter of medium type;
Step B: described PDF/SPDF receives described resource request message, and user's reality of analyzing the bandwidth request scope that is met described bandwidth request range parameter correspondence can obtain bandwidth, is carried on and is sent to described AF in the resource request response message;
Step C: described AF receives described resource request response message, and can obtain bandwidth according to described user's reality and determine/adjust the code encoding/decoding mode of described medium type.
12. method according to claim 11 is characterized in that, described bandwidth request range parameter is the bandwidth request tabulation, and described bandwidth request list entry comprises bandwidth on demand.
13. method according to claim 12, it is characterized in that, among the step B, PDF/SPDF compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then PDF/SPDF can obtain the bandwidth on demand that bandwidth is adjusted into described list item with user's reality;
Among the step C, AF can obtain the code encoding/decoding mode that bandwidth obtains coupling according to described user's reality.
14. method according to claim 12 is characterized in that, among the step B, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step C, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then obtain the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
15. method according to claim 11 is characterized in that, described bandwidth request range parameter comprises largest request bandwidth and minimum bandwidth on demand.
16. method according to claim 15 is characterized in that, among the step B, PDF/SPDF directly can obtain bandwidth with described user's reality and send to AF;
Among the step C, AF compares in order successively according to each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation, can obtain bandwidth if the bandwidth on demand of described list item satisfies described user's reality, then obtain the code encoding/decoding mode of coupling according to the bandwidth on demand of described list item.
17. method according to claim 11 is characterized in that, among the step B, described user's reality can obtain bandwidth to be described PDF/SPDF according to the conventional network resources situation and to obtain based on operator and/or user's etc. policing rule analysis.
18. according to each described method of claim 11 to 17, it is characterized in that,
Described resource request message is the AAR order, and described resource request response message is the AAA order.
19. the system of a media negotiation comprises AF, PDF/SPDF, it is characterized in that:
Described PDF/SPDF receives first resource request message that AF sends, described first resource request message carries the bandwidth request range parameter of medium type, user's reality is obtained in analysis can obtain bandwidth, and satisfied being carried in the first resource request response message is sent to described AF if described user's reality can obtain bandwidth;
Described AF can obtain bandwidth according to described user's reality and determine/adjust the code encoding/decoding mode of described medium type.
20. the system according to claim 19 is characterized in that, described user's reality can obtain bandwidth by described PDF/SPDF by comprehensive conventional network resources situation, obtain based on operator and/or based on user's etc. policing rule analysis.
21. system according to claim 19, it is characterized in that, also comprise Access-Resource and Admission Control Function, described PDF/SPDF sends second resource request message to Access-Resource and Admission Control Function, described Access-Resource and Admission Control Function obtains the user can obtain bandwidth inserting side, and described user can be obtained bandwidth and is carried in the second resource request response message and is sent to described PDF/SPDF inserting side.
22. an Application Function is characterized in that, comprises AF transmitting element, AF receiving element, AF resource decision unit;
Described AF transmitting element sends resource request message to the PDF/SPDF entity, and described AF receiving element receives the resource request response message that PDF/SPDF sends, and carries the bandwidth request range parameter of medium type in the described resource request message;
Described resource request response message carries the current bandwidth that obtains of user;
The current code encoding/decoding mode that obtains bandwidth match of described user is selected according to the current bandwidth that obtains of described user in described AF resource decision unit in described medium type.
23. a PDF/SPDF entity is characterized in that, comprises PDF transmitting element, PDF receiving element, PDF resource decision unit;
Described PDF receiving element receives first resource request message that AF sends, and described first resource request message carries the bandwidth request range parameter;
Described PDF resource decision element analysis obtains user's reality can obtain bandwidth, more described bandwidth request range parameter and described user's reality can obtain bandwidth, satisfy described bandwidth request range parameter if described user's reality can obtain bandwidth, described transmitting element can obtain bandwidth with described user's reality and be sent to AF.
24. the PDF/SPDF entity according to claim 23 is characterized in that, described PDF resource decision unit is according to the conventional network resources situation, based on operator and/or obtain described user's reality based on user's policing rule analysis and can obtain bandwidth.
25. the PDF/SPDF entity according to claim 23 is characterized in that described transmitting element sends second resource request message to Access-Resource and Admission Control Function, described second resource request message carries the bandwidth request range parameter;
Described receiving element receives the second resource request response message that described Access-Resource and Admission Control Function sends; The described second resource request response message carries the user can obtain bandwidth in the access side;
Described PDF resource decision unit according to described user insert side can obtain bandwidth, conventional network resources situation, based on operator and/or obtain described user's reality based on user's policing rule analysis and can obtain bandwidth.
26. PDF/SPDF entity according to claim 24 or 25, it is characterized in that, described bandwidth request range parameter is the bandwidth on demand tabulation, described PDF resource decision unit compares each list item that described user's reality can obtain in bandwidth and the bandwidth on demand tabulation in order successively, bandwidth can be obtained if the bandwidth on demand of described list item satisfies described user's reality, then described user's reality the bandwidth on demand that bandwidth is adjusted into described list item can be obtained.
27. an Access-Resource and Admission Control Function entity is characterized in that, comprises Access-Resource and Admission Control Function transmitting element, Access-Resource and Admission Control Function receiving element, Access-Resource and Admission Control Function resource decision unit;
Described receiving element receives second resource request message that PDF/SPDF sends, and described second resource request message carries the bandwidth request range parameter;
Described Access-Resource and Admission Control Function resource decision element analysis obtains the user can obtain bandwidth in the access side;
Described transmitting element sends the second resource request response message to described PDF/SPDF, wherein carries described user and can obtain bandwidth in the access side.
28. the Access-Resource and Admission Control Function entity according to claim 27 is characterized in that, described Access-Resource and Admission Control Function resource decision unit has used network bandwidth analysis to obtain the user can to obtain bandwidth inserting side according to QoS of customer CAMEL-Subscription-Information and user are current.
29. Access-Resource and Admission Control Function entity according to claim 27, its feature also is, described bandwidth request range parameter is the bandwidth on demand tabulation, described Access-Resource and Admission Control Function resource decision unit compares described user in order successively at each list item that the access side can obtain in bandwidth and the bandwidth on demand tabulation, bandwidth can be obtained if the bandwidth on demand of described list item satisfies described user in the access side, then described user the bandwidth on demand that bandwidth is adjusted into described list item can be obtained in the access side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610033418 CN101009695A (en) | 2006-01-26 | 2006-01-26 | A method and system for media negotiation |
| PCT/CN2007/000232 WO2007085184A1 (en) | 2006-01-26 | 2007-01-22 | A method, system and entity for media negotiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610033418 CN101009695A (en) | 2006-01-26 | 2006-01-26 | A method and system for media negotiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101009695A true CN101009695A (en) | 2007-08-01 |
Family
ID=38308855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610033418 Pending CN101009695A (en) | 2006-01-26 | 2006-01-26 | A method and system for media negotiation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101009695A (en) |
| WO (1) | WO2007085184A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009026844A1 (en) * | 2007-08-24 | 2009-03-05 | Huawei Technologies Co., Ltd. | Method, system and apparatus for admission control of multicast or unicast |
| WO2009036631A1 (en) * | 2007-09-21 | 2009-03-26 | Zte Corporation | A method for establishing lsp tunnels in the mpls-te based ngn |
| WO2009146618A1 (en) * | 2008-06-06 | 2009-12-10 | 华为技术有限公司 | Methods, device and systems for forwarding message to function entity which can be relocated in communication systems |
| CN101465920B (en) * | 2007-12-17 | 2011-12-28 | 华为技术有限公司 | Resource control proxy method, system and device |
| CN101674244B (en) * | 2009-09-24 | 2013-03-20 | 中兴通讯股份有限公司 | Bandwidth control method, bandwidth control device and packet data network gateway |
| US8526304B2 (en) | 2007-12-20 | 2013-09-03 | Zte Corporation | Processing method for resource request in NGN |
| CN103813339A (en) * | 2012-11-15 | 2014-05-21 | 鸿富锦精密工业（深圳）有限公司 | Bandwidth management system and method |
| CN110650023A (en) * | 2018-06-26 | 2020-01-03 | 中国移动通信有限公司研究院 | Policy rule processing method and device, functional network element and storage medium |
| CN113556783A (en) * | 2020-04-26 | 2021-10-26 | 华为技术有限公司 | Media resource transmission method, related device and system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486713B1 (en) * | 2002-09-17 | 2005-05-03 | 삼성전자주식회사 | Apparatus and method for streaming multimedia data |
| JP4224461B2 (en) * | 2002-09-27 | 2009-02-12 | ノキア コーポレーション | Enhanced QOS control |
| AU2004247251B2 (en) * | 2003-06-12 | 2009-01-22 | Camiant, Inc. | PCMM application manager |
| JP4343229B2 (en) * | 2003-08-14 | 2009-10-14 | テルコーディア テクノロジーズ インコーポレイテッド | Automatic IP traffic optimization in mobile communication systems |
| US7460480B2 (en) * | 2004-03-11 | 2008-12-02 | I2Telecom International, Inc. | Dynamically adapting the transmission rate of packets in real-time VoIP communications to the available bandwidth |
| JP4445547B2 (en) * | 2004-07-05 | 2010-04-07 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Binding mechanism for quality of service management in telecommunication networks |
-
2006
- 2006-01-26 CN CN 200610033418 patent/CN101009695A/en active Pending
-
2007
- 2007-01-22 WO PCT/CN2007/000232 patent/WO2007085184A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009026844A1 (en) * | 2007-08-24 | 2009-03-05 | Huawei Technologies Co., Ltd. | Method, system and apparatus for admission control of multicast or unicast |
| WO2009036631A1 (en) * | 2007-09-21 | 2009-03-26 | Zte Corporation | A method for establishing lsp tunnels in the mpls-te based ngn |
| CN101465920B (en) * | 2007-12-17 | 2011-12-28 | 华为技术有限公司 | Resource control proxy method, system and device |
| US8526304B2 (en) | 2007-12-20 | 2013-09-03 | Zte Corporation | Processing method for resource request in NGN |
| WO2009146618A1 (en) * | 2008-06-06 | 2009-12-10 | 华为技术有限公司 | Methods, device and systems for forwarding message to function entity which can be relocated in communication systems |
| CN101599912B (en) * | 2008-06-06 | 2012-04-04 | 华为技术有限公司 | Method and system for transmitting message to transportable functional entity in communication system |
| CN101674244B (en) * | 2009-09-24 | 2013-03-20 | 中兴通讯股份有限公司 | Bandwidth control method, bandwidth control device and packet data network gateway |
| CN103813339A (en) * | 2012-11-15 | 2014-05-21 | 鸿富锦精密工业（深圳）有限公司 | Bandwidth management system and method |
| CN103813339B (en) * | 2012-11-15 | 2017-05-31 | 鸿富锦精密工业（深圳）有限公司 | Bandwidth management system and management method |
| CN110650023A (en) * | 2018-06-26 | 2020-01-03 | 中国移动通信有限公司研究院 | Policy rule processing method and device, functional network element and storage medium |
| CN113556783A (en) * | 2020-04-26 | 2021-10-26 | 华为技术有限公司 | Media resource transmission method, related device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007085184A1 (en) | 2007-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101009697B (en) | The system and method for improving the success rate and efficiency of the resource request at the service layer | |
| CN101009695A (en) | A method and system for media negotiation | |
| CN101385307B (en) | Optimization of pdp context usage | |
| US8189596B2 (en) | Method for the mapping of packet flows to bearers in a communication system | |
| EP1620979B1 (en) | Method, system and network element for authorizing a data transmission | |
| EP1867202B1 (en) | Telecommunication network support for service based policy in roaming configurations | |
| EP1762056B1 (en) | Dynamic service information for the access network | |
| US20110145319A1 (en) | Group session management and admission control of multiple internet protocol flows | |
| CN100558039C (en) | A kind of charge associated method | |
| US20120002548A1 (en) | Traffic Control by IP Multimedia Subsystem | |
| EP2285050B1 (en) | Method and system for resource admission control | |
| US20060221822A1 (en) | Provision of static QoS control using dynamic service based policy mechanisms | |
| CN101330757B (en) | Method for implementing business safety grade in next generation network | |
| CN101345703A (en) | Bearing resource reservation method, system and device | |
| CN1889566B (en) | Resource requesting method of business layer to transmitting layer in next generation network | |
| CN101316176B (en) | Service quality policy based charging method and resource admission control subsystem | |
| CN102164068B (en) | Resource acceptance control method and system | |
| CN101330462B (en) | Method for implementing network safety gradation in the next generation network | |
| KR100692648B1 (en) | Method for providing qos based on policy in wcdma and record media recorded program for realizing the same | |
| CN102026302A (en) | Pull-mode resource admission control method and system at wholesale scene | |
| CN102148809B (en) | System and method for service identification and management system to obtain information | |
| CN101741915A (en) | Content interaction method, equipment and system for peer-to-peer protocols | |
| Leroy et al. | End-to-end UMTS quality of service architecture for the support of real-time IP multimedia services in UMTS R5 | |
| Hemami et al. | Analysis and optimization of resource control schemes in Next Generation Networks | |
| Ma et al. | An end-to-end qos frame in multimedia provision for tight-coupled interworking of ims and wimax |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070801 |