CN101567877B

CN101567877B - Parameter authorization method, data passage functional entity and communication system

Info

Publication number: CN101567877B
Application number: CN2008100668934A
Authority: CN
Inventors: 梁文亮; 彭程晖; 张伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-04-25
Filing date: 2008-04-25
Publication date: 2012-11-21
Anticipated expiration: 2028-04-25
Also published as: CN101567877A; WO2009129746A1

Abstract

The embodiment of the invention provides a parameter authorization method, a data passage functional entity and a communication system. The parameter authorization method is as follows: when the data passage functional entity DPF detects that a service flow needs sending feedback information, the data passage functional entity DFP carries out authorization processing of a parameter. The authorization processing of the parameter of the service flow of the feedback information in the compressing process of a loading head can be carried out by the technical scheme provided by the embodiment of the invention, thus, the feedback information in the compressing process of the loading head can be prevented from influencing the basic safeguard of the service flow of the user, and the transmission quality of the feedback information can be guaranteed with high quality.

Description

The method of parameter authorization, data channel functional entity and communication system

Technical field

The present invention relates to the communication technology, relate in particular to a kind of method, data channel functional entity and communication system of parameter authorization.

Background technology

Because the restriction of physical condition, Radio Link is compared with wire link, and transmission rate is lower, and the error rate is higher.When in the wireless network cell environment time, there is the excessive problem of packet header expense in Internet protocol (IP) technical application.For example, an IPv6 voice communication is divided into groups, and the packet payload that the user really needs often only accounts for 22% of whole group.Waste bandwidth so not only, the probability that this grouping that also having increased makes mistakes owing to dividing into groups causes is dropped.If do not adopt an effective measure, in the valuable wireless network resource of waste, also can reduce service quality (QoS).

Adopt a compression mechanism to address the above problem, can guarantee the flexibility that the IP agreement is intrinsic simultaneously.Compression mechanism can comprise robustness head compression (ROHC; Robust Header Compression), RTP head compression (Real-time Transport Protocol Header Compression; CRTP) system; And the compression of expansion RTP head (Extended RTP Header Compression, ECRTP) mechanism etc.

With ROHC is example, and ROHC is a kind of header compression scheme based on stream that IETF defines in RFC 3095.In the network data transmission process, most of leader territory has identical thresholding in the grouping of same stream.ROHC mechanism is got a reference packet in certain stream, divide into groups only to send the divide into groups information that changes of relative reference in the leader territory for other, reaching the compression purpose, thereby saves the packet header expense, effectively utilizes bandwidth more.Simultaneously, ROHC mechanism also through the frequency and the means such as quantity, the nonsynchronous logic of detection and error checking and correction of Control and Feedback message, makes this ROHC mechanism have the validity and rational robustness of height.Therefore, ROHC mechanism provides a kind of header compression mechanism that is applied to high bit-error and long delay link.

Communicate in wireless network through ROHC mechanism, need set up ROHC channel (channel), the ROHC channel is a logic channel, and in this logic channel, inlet is a compressor reducer, and outlet is a decompressor, and compressor reducer and decompressor are corresponding one by one.Compressor reducer carries out initial data to send to decompressor through this logic channel after the head compression.This ROHC channel is unidirectional logic channel.Simultaneously, in order to support bi-directional compression, decompressor must be able to provide feedback information to compressor reducer, so ROHC feedback channel (feedback channel) is for carrying the logic channel of said feedback information, and inlet is a decompressor, and outlet is a compressor reducer.In the process of application head compress technique, in order to support bi-directional compression, decompressor should provide feedback information for compressor reducer.

WiMAX (Worldwide Interoperability for Microwave Access), Chinese full name are that the microwave interoperability is inserted in the whole world, are a kind of wireless metropolitan area network technologies based on IEEE 802.16 standards.It is terminal (MS/SS:Mobile Station/SubscriberStation) that the WiMAX network mainly is made up of three parts; Accessing business network (ASN:Access Service Network) comprises base station (BS:BaseStation) and accessing business network gate (ASN GW:Access Service Network-GateWay) and is connected service network (CSN:Connectivity Service Network) and comprises prepaid server (PPS:PrepayServer); Authentication; Authorize and accounting server logic entities such as (AAA Server:Authentication AuthorizationAccounting Server).As shown in fig. 1, the whole network of WiMAX mainly by:

(1) terminal (SS/MS): the user uses this devices accessing WiMAX network.

(2) accessing business network (ASN): ASN is defined as the network function set that the terminal provides the wireless access service.ASN has comprised BS and ASN-GW network element.Wherein the major function of BS network element is: provide the L2 of BS and MS to be connected, RRM or the like; The major function of ASN-GW network element is: for MS authentication function provides client functionality, Relay function (like IP address assignment), ASN intra of L3 information etc. are provided for MS.

(3) connect service network (CSN): CSN is defined as the terminal IP is provided Connection Service.The major function that CSN provided is: the IP address assignment of terminal MS, Internet insert, AAA proxy or server, based on user's authorization control etc.

Three parts are formed, and communicate through the interface from R1 to R6 between its logic entity, and each network element and interface relationship are as shown in Figure 1.

Do not provide a kind of method to come the method for authorizing in the prior art for the parameter of the service flow of the feedback information in the carrier head compression process.

Summary of the invention

This embodiment of the invention provides a kind of method, data channel functional entity and communication system of parameter authorization to authorize for the parameter of the service flow of the feedback information in the carrier head compression process.

The method of the parameter authorization that the embodiment of the invention provides is specially:

If data channel functional entity DPF has detected service flow and need send feedback information, then said data channel functional entity DPF carries out parameter authorization to be handled.

The data channel functional entity that the embodiment of the invention provides comprises:

Detection module, whether be used for detection has service flow need send feedback information;

Processing module is used for carrying out parameter authorization according to the testing result of said detection module and handles.

The communication system that the embodiment of the invention provides comprises data channel functional entity; Said data channel functional entity has detected service flow need send feedback information, and then said data channel functional entity DPF carries out parameter authorization to be handled.

The technical scheme that provides through the embodiment of the invention; Can carry out authorisation process for the parameter of the service flow of the feedback information in the carrier head compression process; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

Description of drawings

Fig. 1 is a WiMAX network structure of the prior art;

The method flow diagram of a kind of parameter authorization that Fig. 2 provides for the embodiment of the invention;

The method flow diagram of a kind of parameter authorization that Fig. 3 provides for the embodiment of the invention;

The method flow diagram of a kind of parameter authorization that Fig. 4 provides for the embodiment of the invention;

The method flow diagram of a kind of parameter authorization that Fig. 5 provides for the embodiment of the invention;

The method flow diagram of a kind of parameter authorization that Fig. 6 provides for the embodiment of the invention;

The method flow diagram of a kind of parameter authorization that Fig. 7 provides for the embodiment of the invention;

The structural representation of several circulation passage functional entitys that Fig. 8 provides for the embodiment of the invention.

Embodiment

For the purpose that makes the embodiment of the invention, technical scheme and advantage express clearer, specify the technical scheme that the embodiment of the invention provides below in conjunction with specific embodiment and accompanying drawing.

The embodiment of the invention provides a kind of method of parameter authorization, is specially: if data channel functional entity DPF has detected service flow and need send feedback information, then said data channel functional entity DPF carries out parameter authorization to be handled.

In the embodiment of the invention,, then carry out parameter authorization and handle if data channel functional entity DPF has detected service flow and need send feedback information.Concrete processing mode can have multiple mode according to the form difference and the decision point difference of carrying feedback information.As can be through newly setting up service flow or using the service flow of having set up to carry said feedback information; Can come said newly-established service flow or the service flow set up are carried out parameter authorization through different decision points such as data channel functional entity DPF, service flow authorized entity SFA or strategy authorization entity; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

According to the execution mode under the different scenes parameter authorization method that the embodiment of the invention provides is elaborated respectively below.

Embodiment 1, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through newly setting up service flow, decision point carries out parameter authorization for said newly-established service flow through said several circulation passage functional entity DPF for number circulation passage functional entity DPF.This method is as shown in Figure 2, and is specific as follows:

Step 200, the same network interaction in terminal, access network.

During accessing terminal to network,, need carry out the flow process of access network with network interaction as inserting the WiMAX network.Optional; In the process of access network; CSN can labour contractor's compressed feedback parameter be handed down to ASN; As can be the ROHC feedback parameter, in said ASN, can preserve said compressed feedback parameter by service flow authorized entity SFA (ServiceFlow Authorization) or data channel functional entity DPF (Data Path Function).Perhaps, said service flow authorized entity SFA or data channel functional entity DPF can be in advance in local configured head compressed feedback parameters.In the embodiment of the invention, described compressed feedback parameter comprises and is not limited to any in the following information:

(1), feedback strategy; As can be newly to set up service flow (as newly setting up one directional service stream or bi-directional service stream) to carry feedback information; Can be to use the service flow set up (as can using piggyback mode or interspersing mode, or piggyback/interspersing hybrid mode) to carry feedback information, also can be to carry feedback information with signaling method; Said signaling can be newly-designed signaling, also can be to reuse existing signaling in the existing system;

(2), carry the relevant parameter of the service flow of feedback information, as being the qos parameter that carries the service flow of feedback information;

If ROHC then can be the qos parameter of the feedback information of definition feedback information or the R pattern of carrying the O pattern.

(3), the service flow feedback parameter, comprise whether needing feedback and/or feedback model etc.;

As when being the ROHC mode, then described service flow feedback parameter can comprise whether need feedback and/or, R pattern or O pattern.

(4), the maximum service fluxion that is used to carry feedback information that allows said terminal to use; As the maximum service fluxion that is used to carry feedback information that can unified Definition allows said terminal to use, also can be to define the maximum service fluxion that is used to carry feedback information that allows said terminal to use respectively to up-downgoing;

(5), sign: be used to indicate the ASN can local configured head compressed feedback parameter.

Consult at step 201, network and terminal, sets up service flow.

After networking successfully, if need commence business, then network and terminal consult to set up service flow, comprise the service flow parameters licensing process, like the qos parameter mandate, set up data channel etc. according to said service flow parameters.Further; Network can also need carry out the head compression with the service flow that this foundation is consulted at the terminal; As can be to use robustness head compression ROHC, the embodiment of the invention describes to use the ROHC mode to carry out a boil down to example, but the embodiment of the invention is not limited in ROHC.

After the compression of ROHC head starts,, then need send the feedback information of this service flow as if being O pattern or R pattern from the U mode-conversion.As stated; Said transmission feedback information can be newly to set up service flow to carry said feedback information; Also can be to use the service flow of having set up to carry said feedback information, to carry said feedback information be that example is elaborated to present embodiment newly to set up service flow.

Step 202, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

After the compression of ROHC head starts; If from the U mode-conversion is O pattern or R pattern; Need to send feedback information, then optional, trigger request can be sent to said data channel functional entity DPF in the terminal; Portability indication information in described trigger request is used to notify said data channel functional entity DPF to have service flow need send feedback information; Portability need send the service flow sign SFID of the service flow of feedback information in the further described trigger request.

Step 203, service flow parameters mandate.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives that said trigger request of coming self terminal or said data channel functional entity DPF have independently detected service flow and need send feedback information, then said data channel functional entity DPF begins to set up the service flow of carrying feedback information.

The service flow of set up carrying feedback information comprises that service flow parameters licensing process and data channel set up process.Said service flow parameters licensing process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with said data channel functional entity DPF as decision point.

Said data channel functional entity DPF can according to said receive from the compressed feedback parameter of CSN or carry out the service flow parameters mandate in said compressed feedback parameter of this locality configuration in advance; Can judge whether to satisfy said compressed feedback parameter according to the own resource situation like said data channel functional entity DPF; If satisfy, generate the service flow parameters of authorizing.

Step 204, data channel are set up process.

Said data channel functional entity DPF carries out data channel according to the service flow parameters of said mandate with said terminal interaction and sets up, and sets up in described data channel that can to carry this data channel of indication in the related news in the process be the indication information that is used to carry feedback information.Further, set up in the process, can in the FEEDBACK-FOR territory of DSA-REQ message, carry the service flow sign SFID of the service flow of setting up in the step 201 in described data channel.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through newly setting up service flow with said data channel functional entity DPF.Said data channel functional entity DPF can carry out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

Embodiment 2, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through newly setting up service flow, decision point is service flow authorized entity SFA, comes to carry out parameter authorization for said newly-established service flow through service flow authorized entity SFA.This method is as shown in Figure 3, and is specific as follows:

Step 300, the same network interaction in terminal, access network.

Consult at step 301, network and terminal, sets up service flow.

After the compression of ROHC head starts,, then need send feedback information as if being O pattern or R pattern from the U mode-conversion.As stated; Said transmission feedback information can be newly to set up service flow to carry said feedback information; Also can be to use the service flow of having set up to carry said feedback information, to carry said feedback information be that example is elaborated to present embodiment newly to set up service flow.

Step 302, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

Step 303, said data channel functional entity DPF send a request message to service flow authorized entity SFA.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives that said trigger request of coming self terminal or said data channel functional entity DPF have independently detected service flow and need send feedback information, then said data channel functional entity DPF begins to set up the service flow of carrying feedback information.The service flow of set up carrying feedback information comprises that service flow parameters licensing process and data channel set up process; Said service flow parameters licensing process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with said service flow authorized entity SFA as decision point.

Said data channel functional entity DPF is to the said service flow authorized entity SFA request of sending a request message carrying out service flow parameters mandate; As can be that anchor data channel functional entity AnchorDPF among the said ASN sends RR-Req message to anchor service flow authorized entity Anchor SFA, be used for request and carry out the service flow parameters mandate.In the embodiment of the invention, carry indication information in the described request message, this indication information is used for indication request and sets up the service flow that is used to carry feedback information; Optional, the service flow that can further include the service flow of having set up in the step 301 in this request message identifies SFID and/or service flow qos parameter; The suggestion qos parameter that further, can also comprise the service flow that ROHC operator scheme (like U pattern, O pattern or R pattern) and/or described request are set up in this request message.

Step 304, said service flow authorized entity SFA receive said request message from data channel functional entity DPF; Can according to said receive from the compressed feedback parameter of CSN or in advance and further in said compressed feedback parameter of this locality configuration; If carry the suggestion qos parameter of the service flow that the service flow qos parameter of setting up service flow and/or described request set up in the described request message, the suggestion qos parameter of the service flow that then said service flow authorized entity SFA can set up according to the service flow qos parameter of setting up service flow entrained in the described request message and/or described request carries out the service flow parameters mandate.

Step 305, said service flow authorized entity SFA send the request response to said data channel functional entity DPF.

Said service flow authorized entity SFA sends to said data channel functional entity DPF with the service flow parameters of said mandate through the request response, as can being that said Anchor SFA sends to said Anchor DPF with the service flow parameters of authorizing through RR-Rsp message.

Step 306, data channel are set up process.

Said data channel functional entity DPF carries out data channel according to the service flow parameters of said mandate with said terminal interaction and sets up, and sets up in described data channel that can to carry this data channel of indication in the related news in the process be the indication information that is used to carry feedback information.Further, set up in the process, can in the FEEDBACK-FOR territory of DSA-REQ message, carry the service flow sign SFID of the service flow of setting up in the step 301 in described data channel.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through newly setting up service flow with said service flow authorized entity SFA.Said service flow authorized entity SFA can carry out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

Embodiment 3, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through newly setting up service flow, decision point is the strategy authorization entity among the CSN, can come to carry out parameter authorization for said newly-established service flow through said strategy authorization entity.This method is as shown in Figure 4, and is specific as follows:

Step 400, the same network interaction in terminal, access network.

Consult at step 401, network and terminal, sets up service flow.

Step 402, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

Step 403, said data channel functional entity DPF send a request message to service flow authorized entity SFA.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives that said trigger request of coming self terminal or said data channel functional entity DPF have independently detected service flow and need send feedback information, then said data channel functional entity DPF begins to set up the service flow of carrying feedback information.The service flow of set up carrying feedback information comprises that service flow parameters licensing process and data channel set up process; Said service flow parameters licensing process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with the strategy authorization entity of connectivity serving network as decision point.

Said data channel functional entity DPF is to the service flow authorized entity SFA request of sending a request message carrying out service flow parameters mandate; As can be that anchor data channel functional entity Anchor DPF among the said ASN sends RR-Req message to anchor service flow authorized entity Anchor SFA, be used for request and carry out the service flow parameters mandate.In the embodiment of the invention, carry indication information in the described request message, this indication information is used for indication request and sets up the service flow that is used to carry feedback information; Optional, the service flow that can further include the service flow of having set up in the step 401 in this request message identifies SFID and/or service flow qos parameter; The suggestion qos parameter that further, can also comprise the service flow that ROHC operator scheme (like U pattern, O pattern or R pattern) and/or described request are set up in this request message.

Step 404, said service flow authorized entity SFA receive said request message from data channel functional entity DPF, and the strategy authorization entity in CSN is sent second request message, and the service flow parameters mandate is carried out in request.

In the embodiment of the invention; Said service flow authorized entity SFA receives said request message from data channel functional entity DPF (like RR-Req message); Strategy authorization entity in CSN is sent second request message; As can be that the PCRF of said SFA in said CSN sends CCR message, the service flow parameters mandate is carried out in request; This CCR message is carried indication information, and this indication information is used for indication request and sets up the service flow that is used to carry feedback information; Optional, the service flow that can further include the service flow of having set up in the step 401 in this message identifies SFID and/or service flow qos parameter; The suggestion qos parameter that further, can also comprise the service flow that ROHC operator scheme (like U pattern, O pattern or R pattern) and/or described request are set up in this message.

Step 405, said strategy authorization entity are carried out the service flow parameters mandate.

In the embodiment of the invention; Said strategy authorization entity (like PCRF) can be according to a compressed feedback parameter and further; If carry the suggestion qos parameter of the service flow that the service flow qos parameter of setting up service flow and/or described request set up in said second request message, the suggestion qos parameter of the service flow that then said strategy authorization entity also can be set up according to the service flow qos parameter of setting up service flow entrained in said second request message and/or described request carries out the service flow parameters mandate.

Step 406, said strategy authorization entity are given said service flow authorized entity SFA with the service flow parameters of said mandate through the second request responsive feedback, as can being that said PCRF sends CCA message to said service flow authorized entity SFA.

Step 407, said service flow authorized entity SFA send the request response to said data channel functional entity DPF.

Said service flow authorized entity SFA receives the second request response from said strategy authorization entity; The service flow parameters of its said mandate of carrying is sent to said data channel functional entity DPF through the request response, as can being that said Anchor SFA sends to said Anchor DPF with the service flow parameters of authorizing through RR-Rsp message.

Step 408, data channel are set up process.

Said data channel functional entity DPF carries out data channel according to the service flow parameters of said mandate with said terminal interaction and sets up, and sets up in described data channel that can to carry this data channel of indication in the related news in the process be the indication information that is used to carry feedback information.Further, set up in the process, can in the FEEDBACK-FOR territory of DSA-REQ message, carry the service flow sign SFID of the service flow of having set up in the step 401 in described data channel.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through newly setting up service flow with said strategy authorization entity.Said strategy authorization entity can be carried out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

The embodiment of the invention both can be carried feedback information through newly setting up service flow, also can carry feedback information through the service flow of having set up, and embodiment is described below.

Embodiment 4, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through the service flow of having set up; Decision point is data channel functional entity DPF, can come to carry out parameter authorization for the said service flow of having set up that is used to carry feedback information through said data channel functional entity DPF.This method is as shown in Figure 5, and is specific as follows:

Step 500, the same network interaction in terminal, access network.

(2) service flow feedback parameter comprises whether needing feedback and/or feedback model etc.;

(3), to the adjustment factor of the relevant parameter of setting up service flow;

This adjustment factor is used for expression: if use the service flow of having set up to carry feedback information; Then because of carrying the adjustment that feedback information need carry out the relevant parameter of this service flow of having set up; This adjustment factor can be an absolute number, also can be relative number, like percentage etc.If ROHC then can define the adjustment factor of the feedback information of the feedback information that carries the O pattern or R pattern respectively.

What (4), indication had been set up presets service flow and whether allows to carry feedback information;

(5), the maximum service fluxion that is used to carry feedback information that allows said terminal to use; As the maximum service fluxion that is used to carry feedback information that can unified Definition allows said terminal to use, also can be to define the maximum service fluxion that is used to carry feedback information that allows said terminal to use respectively to up-downgoing;

(6), sign: be used to indicate the ASN can local configured head compressed feedback parameter;

(7), the service flow that can carry feedback information is with the corresponding relation between the service flow that need feed back.

Consult at step 501, network and terminal, sets up service flow.

After networking successfully, if need commence business, then network and terminal consult to set up service flow, comprise the service flow parameters licensing process, like the qos parameter mandate, set up data channel etc. according to the service flow parameters of authorizing.In the present embodiment; The said service flow of setting up can comprise and sets up at least one upstream service flow and at least one descending service flow; Further; Can also set up the corresponding relation of upstream service flow, as setting up corresponding relation between the two through the service flow sign SFID that carries the other side in the FEEDBACK-FOR territory of setting up the DSA-REQ message in the process in service flow with descending service flow.

Further; Network can also be consulted certain service flow with the terminal need carry out the head compression; As can be to use robustness head compression ROHC, the embodiment of the invention describes to use the ROHC mode to carry out a boil down to example, but the embodiment of the invention is not limited in ROHC.

After the compression of ROHC head starts,, then need send the feedback information of this service flow as if being to transform each other between O pattern or R pattern or O pattern and the R pattern from the U mode-conversion.As stated, said transmission feedback information can be newly to set up service flow to carry said feedback information, also can be to use the service flow of having set up to carry said feedback information.As, when having, certain upstream service flow of above-mentioned foundation needs the feedback information that sends, then can carry this feedback information through certain descending service flow of above-mentioned foundation.Present embodiment is elaborated as example to use the service flow of having set up to carry said feedback information.

Step 502, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

After the compression of ROHC head starts; If from the U mode-conversion is to transform each other between O pattern or R pattern or O pattern and the R pattern; Need to send feedback information, then optional, trigger request can be sent to said data channel functional entity DPF in the terminal; Portability indication information in described trigger request is used to notify said data channel functional entity DPF to have service flow need send feedback information; Portability need send the service flow sign SFID of the service flow of feedback information in the further described trigger request.

Step 503, service flow parameters mandate.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives said trigger request of coming self terminal or said data channel functional entity DPF and independently detected service flow and need send feedback information; Then said data channel functional entity DPF can confirm to be used to carry the service flow of feedback information, begins to carry out the parameter authorization process for the said service flow that is used to carry feedback information.Said stream parameter authorization process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with said data channel functional entity DPF as decision point.

After said data channel functional entity DPF confirms to be used to carry the service flow of feedback information; Can according to said receive from the compressed feedback parameter of CSN or come the said service flow that is used to carry feedback information is carried out the service flow parameters mandate in said compressed feedback parameter of this locality configuration in advance; Can judge whether to satisfy said compressed feedback parameter according to the own resource situation like said data channel functional entity DPF; If satisfy, generate the service flow parameters of authorizing.

Step 503, said data channel functional entity DPF send the feedback Indication message to the base station; Said feedback Indication message is used to indicate a said base station compressed feedback to begin; Said base station receives said feedback Indication message, according to its information of carrying adjustment local scheduling strategy.

In the embodiment of the invention; Said feedback Indication message can be newly-designed message; Its message purposes of definable has begun for the said base station of an indication compressed feedback, or also can be to reuse existing message, then can existing message be expanded; Increase a designator, be used for clearly indicating a said base station compressed feedback to begin; Further, can also carry service flow parameters after the said mandate in the said feedback Indication message; Further, can also carry the service flow sign SFID of the service flow that is used to carry feedback information in the said feedback Indication message.

Optional, if said upstream service flow and said descending service flow in step 501 are not set up corresponding relation, then execution in step 504.

Step 504, set up the corresponding relation of said upstream service flow and said descending service flow.

In the embodiment of the invention, can be to send DSC-Req message to the terminal respectively to said upstream service flow and descending service flow, in the FEEDBACK-FOR territory of this message, carry the other side's service flow sign SFID by said base station.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through setting up service flow with said data channel functional entity DPF.Said data channel functional entity DPF can carry out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

Embodiment 5, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through the service flow of having set up; Decision point is service flow authorized entity SFA, can come to carry out parameter authorization for the said service flow of having set up that is used to carry feedback information through said service flow authorized entity SFA.This method is as shown in Figure 6, and is specific as follows:

Step 600, the same network interaction in terminal, access network.

Consult at step 601, network and terminal, sets up service flow.

Step 602, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

Step 603, said data channel functional entity DPF send a request message to service flow authorized entity SFA.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives said trigger request of coming self terminal or said data channel functional entity DPF and independently detected service flow and need send feedback information; Then said data channel functional entity DPF can confirm to be used to carry the service flow of feedback information, begins to carry out the parameter authorization process for the said service flow that is used to carry feedback information.Said stream parameter authorization process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with said service flow authorized entity SFA as decision point.

Said data channel functional entity DPF is to the service flow authorized entity SFA request of sending a request message carrying out service flow parameters mandate; As can be that anchor data channel functional entity Anchor DPF among the said ASN sends RR-Req message to anchor service flow authorized entity Anchor SFA, be used for request and carry out the service flow parameters mandate.In the embodiment of the invention; This request message carries the service flow sign SFID of the service flow that is used to carry feedback information; Optional, the service flow that can further include the service flow that needs the transmission feedback information in this request message identifies SFID and/or the said qos parameter that needs the service flow of transmission feedback information; Further, can also comprise in this request message that ROHC operator scheme (like U pattern, O pattern or R pattern) and/or be used to carries the qos parameter of the service flow of feedback information.

Step 604, service flow parameters mandate.

Said service flow authorized entity SFA receives said request message from data channel functional entity DPF; Said service flow authorized entity SFA can according to said receive from the compressed feedback parameter of CSN or in advance and further in said compressed feedback parameter of this locality configuration; If the qos parameter that carries the said service flow that needs to send feedback information is arranged in the described request message and/or be used to carry the qos parameter of the service flow of feedback information, the qos parameter that the qos parameter and/or be used to that then said service flow authorized entity SFA can also be further sends the service flow of feedback information according to the said needs that carry in the described request message carries the service flow of feedback information carries out the service flow parameters mandate.

Step 605, the said service flow authorized entity SFA service flow parameters after with said mandate sends to said data channel functional entity DPF, as can being that service flow parameters after said Anchor SFA will authorize sends to said Anchor DPF through RR-Rsp message.

Step 606, said data channel functional entity DPF send the feedback Indication message to the base station; Said feedback Indication message is used to indicate a said base station compressed feedback to begin; Said base station receives said feedback Indication message, according to its information of carrying adjustment local scheduling strategy.

Optional, if do not set up corresponding relation at upstream service flow described in the step 601 and descending service flow, then execution in step 607.

Step 607, set up the corresponding relation of said upstream service flow and descending service flow.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through the service flow of having set up with said service flow authorized entity SFA.Said service flow authorized entity SFA can carry out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

Embodiment 6, the embodiment of the invention provide a kind of method of parameter authorization; In this method; Can carry feedback information through the service flow of having set up; Decision point is the strategy authorization entity among the CSN, can come to carry out parameter authorization for the said service flow of having set up that is used to carry feedback information through said strategy authorization entity.This method is as shown in Figure 7, and is specific as follows:

Step 700, the same network interaction in terminal, access network.

Consult at step 701, network and terminal, sets up service flow.

After the compression of ROHC head starts,, then need send the feedback information of this service flow as if being O pattern or R pattern from the U mode-conversion.As stated, said transmission feedback information can be newly to set up service flow to carry said feedback information, also can be to use the service flow of having set up to carry said feedback information.As, when having, certain upstream service flow of above-mentioned foundation needs the feedback information that sends, then can carry this feedback information through certain descending service flow of above-mentioned foundation.Present embodiment is elaborated as example to use the service flow of having set up to carry said feedback information.

Step 702, optional, said terminal can be sent trigger request and given said data channel functional entity DPF.

Step 703, said data channel functional entity DPF send a request message to service flow authorized entity SFA.

In the embodiment of the invention; Said data channel functional entity DPF has detected service flow need send feedback information; As can be that said data channel functional entity DPF receives said trigger request of coming self terminal or said data channel functional entity DPF and independently detected service flow and need send feedback information; Then said data channel functional entity DPF can confirm to be used to carry the service flow of feedback information, begins to carry out the parameter authorization process for the said service flow that is used to carry feedback information.Said stream parameter authorization process can have different execution modes according to the difference of decision point, and present embodiment is that example describes with said strategy authorization entity as decision point.

Step 704, said service flow authorized entity SFA receive said request message from data channel functional entity DPF, and the strategy authorization entity in CSN is sent second request message, and the service flow parameters mandate is carried out in request.

In the embodiment of the invention; Said service flow authorized entity SFA receives said request message from data channel functional entity DPF (like RR-Req message); Policy authorization decision entity in CSN sends second request message; As can be that the PCRF of said SFA in said CSN sends CCR message, the service flow parameters mandate is carried out in request; Said CCR message can be carried the service flow sign SFID of the service flow that is used to carry feedback information; Optional, the service flow that can further include the service flow that needs the transmission feedback information in this message identifies SFID and/or the said qos parameter that needs the service flow of transmission feedback information; Further, can also comprise in this message that ROHC operator scheme (like U pattern, O pattern or R pattern) and/or be used to carries the qos parameter of the service flow of feedback information.

Step 705, said strategy authorization entity are carried out the service flow parameters mandate.

In the embodiment of the invention; Said strategy authorization entity (like PCRF) can be according to a compressed feedback parameter and further; If carry the qos parameter of the said service flow that needs to send feedback information in said second request message and/or be used to carry the qos parameter of the service flow of feedback information, the qos parameter that the qos parameter and/or be used to that then said strategy authorization entity can also be further sent the service flow of feedback information according to the said needs that carry in said second request message carries the service flow of feedback information carries out the service flow parameters mandate.

Step 706, said strategy authorization entity are given said service flow authorized entity SFA with the service flow parameters of said mandate through the second request responsive feedback, as can being that said PCRF sends CCA message to said service flow authorized entity SFA.

Step 707, the said service flow authorized entity SFA service flow parameters after with said mandate sends to said data channel functional entity DPF, as can being that service flow parameters after said Anchor SFA will authorize sends to said Anchor DPF through RR-Rsp message.

Step 708, said data channel functional entity DPF send the feedback Indication message to the base station; Said feedback Indication message is used to indicate a said base station compressed feedback to begin; Said base station receives said feedback Indication message, according to its information of carrying adjustment local scheduling strategy.

Optional, if do not set up corresponding relation at upstream service flow described in the step 701 and descending service flow, then execution in step 709.

Step 709, set up the corresponding relation of said upstream service flow and descending service flow.

The technical scheme that the embodiment of the invention provides if there is service flow need send feedback information, as decision point, is carried said feedback information through the service flow of having set up with said strategy authorization entity.Said strategy authorization entity can be carried out authorisation process for the parameter of the service flow of carrying feedback information; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

The embodiment of the invention provides a kind of data channel functional entity, and is as shown in Figure 8, and this data channel functional entity specifically comprises detection module 800 and processing module 802, and whether said detection module 800 is used for detecting has service flow need send feedback information; Processing module 802 is used for carrying out parameter authorization according to the testing result of said detection module 800 and handles.

Further; Said detection module 800 can comprise that first receives the submodule 8001 or second detection sub-module 8003; Said first receives the trigger request that submodule 8001 is used to receive self terminal; Detect according to said trigger request whether service flow needs transmission feedback information is arranged, whether said second detection sub-module 8003 is used for self detecting has service flow need send feedback information.

Said processing module 802 can comprise the acquisition module 8020 and first processing sub 8021; Said acquisition module 8020 is used to obtain a compressed feedback parameter; Said first processing sub 8021 is used for carrying out parameter authorization according to the compressed feedback parameter that said acquisition module 8020 is obtained, and generates the service flow parameters of authorizing.Perhaps

Said processing module can comprise that first sends the submodule 8022 and the second reception submodule 8023; Said first sends submodule 8022 is used for sending a request message to service flow authorized entity SFA; Parameter authorization is carried out in request; Said second receives submodule 8023 is used to receive the request response from said service flow authorized entity SFA, carries the service flow parameters of mandate in the described request response.

Further, in the embodiment of the invention, said data channel functional entity can comprise that also passage sets up module 804, is used for setting up data channel according to the service flow parameters of the said mandate of said processing module 802.

Further, in the embodiment of the invention, said processing module 802 also can comprise the determination module 8024 and second processing sub 8025, and said determination module 8024 is used to confirm to be used to carry the service flow of feedback information; The compressed feedback parameter that said second processing sub 8025 is used for being obtained according to said acquisition module 8020 is carried out parameter authorization to the determined service flow that is used to carry feedback information of said determination module 8024, generates the service flow parameters of authorizing.

Further, in the embodiment of the invention, said data channel functional entity can comprise that also second sends submodule 806, is used for sending the feedback Indication message to the base station, carries the service flow parameters from the mandate of said processing module 802 in the said feedback Indication message.

The technical scheme that the embodiment of the invention provides; Said data channel functional entity need send feedback information if detected service flow; For the parameter of the service flow that is used to carry feedback information is carried out authorisation process; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

The embodiment of the invention also provides a kind of communication system, and this system comprises data channel functional entity, but said data channel functional entity links to each other with the terminal with communication mode; Said data channel functional entity, being used to detect said terminal has service flow need send feedback information, and then said data channel functional entity DPF carries out parameter authorization to be handled.

Further, said terminal is used for then sending trigger request to said data channel functional entity if having detected service flow need send feedback information; Said data channel functional entity is used to receive said trigger request of coming self terminal, and detecting said terminal has service flow need send feedback information.

Further, said data channel functional entity also is used to obtain a compressed feedback parameter; Carry out parameter authorization according to said compressed feedback parameter; Generate the service flow parameters of authorizing, or, the service flow of confirming to be used to carry feedback information; According to said compressed feedback parameter the said service flow that is used to carry feedback information is carried out parameter authorization, generate the service flow parameters of authorizing.

Further, said system also comprises service flow authorized entity SFA; Said data channel functional entity DPF; Also be used for sending a request message to said service flow authorized entity SFA; Parameter authorization is carried out in request, carries the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in the described request message; Reception is carried the service flow parameters of mandate from the request response of said service flow authorized entity SFA in the described request response; Said service flow authorized entity SFA is used to obtain a compressed feedback parameter; Carry out parameter authorization according to said compressed feedback parameter, generate the service flow parameters of authorizing; The service flow parameters of said mandate is sent to said data channel functional entity DPF through the request response.

Further, said system also comprises strategy authorization entity; Said data channel functional entity DPF; Also be used for sending a request message to service flow authorized entity SFA; Parameter authorization is carried out in request, carries the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in the described request message; Reception is carried the service flow parameters of mandate from the request response of said service flow authorized entity SFA in the described request response; Said service flow authorized entity SFA; Be used for sending second request message, carry the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in said second request message to said strategy authorization entity; Reception is carried the service flow parameters of mandate from the second request response of said strategy authorization entity in the said second request response; Send the request response to said data channel functional entity DPF, carry the service flow parameters of mandate in the described request response; Said strategy authorization entity is used to receive second request message from said service flow authorized entity SFA, carries out parameter authorization according to a compressed feedback parameter that generates in advance, generates the service flow parameters of authorizing; Entity sends to said service flow authorized entity SFA with the service flow parameters of said mandate through the second request response.

In the communication system that the embodiment of the invention provides, if there is service flow need send feedback information, can be through newly setting up service flow or using the service flow of having set up to carry said feedback information; Can come said newly-established service flow or the service flow set up are carried out parameter authorization through different decision points such as DPF, SFA or strategy authorization entity; Can guarantee that like this feedback information in the compression process can not have influence on the basic guarantee of user's service flow, delivery quality that can high-quality assurance feedback information.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in a kind of computer-readable recording medium; This program comprises the steps when carrying out

The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims

1. a parameter authorization method is characterized in that, this method specifically comprises:

Data channel functional entity DPF obtains a compressed feedback parameter;

If detecting the service flow of carrying terminal data, data channel functional entity DPF need send feedback information; Then said data channel functional entity DPF carries out parameter authorization according to said compressed feedback parameter to the service flow of carrying said feedback information to be handled, and generates the service flow parameters of authorizing; Or

Said data channel functional entity DPF confirms to be used to carry the service flow of feedback information, and according to said compressed feedback parameter the said service flow that is used to carry feedback information is carried out parameter authorization and handle, and generates the service flow parameters of authorizing.

2. the method for claim 1 is characterized in that, said data channel functional entity DPF detects the service flow of carrying terminal data and need send feedback information and be specially:

Said data channel functional entity DPF receives the trigger request of self terminal; Or

Said data channel functional entity DPF self detects the service flow of carrying terminal data need send feedback information.

3. the method for claim 1 is characterized in that, said data channel functional entity DPF carries out the parameter authorization processing according to said compressed feedback parameter to the service flow of carrying said feedback information and is specially:

Said data channel functional entity DPF sends a request message to service flow authorized entity SFA; Request is carried out parameter authorization to the service flow of carrying said feedback information, carries the indication information that indication request is set up the service flow of the said carrying feedback information be used to carry feedback information in the described request message;

Said data channel functional entity DPF receives the request response from said service flow authorized entity SFA, carries the service flow parameters of mandate in the described request response.

4. method as claimed in claim 3 is characterized in that, said data channel functional entity DPF detects the service flow of carrying terminal data and need send feedback information and take a step forward and comprise: said service flow authorized entity SFA obtains a compressed feedback parameter;

Said data channel functional entity DPF further comprises after service flow authorized entity SFA sends a request message:

Said service flow authorized entity SFA carries out parameter authorization according to said compressed feedback parameter to the service flow of carrying said feedback information, generates the service flow parameters of authorizing;

Said service flow authorized entity SFA sends to said data channel functional entity DPF with the service flow parameters of said mandate through the request response.

5. method as claimed in claim 3 is characterized in that, said data channel functional entity DPF further comprises after service flow authorized entity SFA sends a request message:

The strategy authorization entity of said service flow authorized entity SFA in connectivity serving network CSN sent second request message, carries the indication information that indication request is set up the service flow be used to carry feedback information in said second request message;

Said strategy authorization entity is carried out parameter authorization according to the compressed feedback parameter that said connectivity serving network CSN generates in advance to the service flow of carrying said feedback information, generates the service flow parameters of authorizing;

Said strategy authorization entity sends to said service flow authorized entity SFA with the service flow parameters of said mandate through the second request response.

6. like claim 1 or 4 or 5 described methods, it is characterized in that said compressed feedback parameter comprises in the following parameter one or multinomial:

The maximum service fluxion and the sign that are used to carry feedback information that use at feedback strategy, the relevant parameter that carries the service flow of feedback information, service flow feedback parameter, the said terminal of permission.

7. like arbitrary described method among the claim 3-5, it is characterized in that this method further comprises:

Said data channel functional entity DPF sets up data channel according to the service flow parameters of said mandate.

8. the method for claim 1 is characterized in that, said data channel functional entity DPF carries out the parameter authorization processing according to said compressed feedback parameter to the service flow of carrying said feedback information and is specially:

Said data channel functional entity DPF sends a request message to service flow authorized entity SFA, and request is carried out parameter authorization to the service flow of carrying said feedback information, carries the service flow sign SFID of the service flow that is used to carry feedback information in the described request message;

9. method as claimed in claim 8 is characterized in that, said data channel functional entity DPF detects the service flow of carrying terminal data and need send feedback information and take a step forward and comprise: said service flow authorized entity SFA obtains a compressed feedback parameter;

10. method as claimed in claim 8 is characterized in that, said data channel functional entity DPF further comprises after service flow authorized entity SFA sends a request message:

The strategy authorization entity of said service flow authorized entity SFA in connectivity serving network CSN sent second request message, carries the service flow sign SFID of the service flow that is used to carry feedback information in said second request message;

11., it is characterized in that said compressed feedback parameter comprises in the following parameter one or multinomial like claim 1 or 8 described methods:

Feedback strategy, service flow feedback parameter, to the adjustment factor, the indication of the relevant parameter of setting up service flow set up preset whether service flow allows to carry feedback information, allows the maximum service fluxion that is used to carry feedback information that said terminal uses, the service flow that can carry feedback information is with corresponding relation and sign between the service flow that need feed back.

12., it is characterized in that a said compressed feedback parameter of obtaining is specially like claim 4 or 9 described methods:

In the process of accessing terminal to network, said data channel functional entity DPF or said service flow authorized entity SFA receive said compressed feedback parameter from connectivity serving network CSN; Or

In the process of accessing terminal to network, said data channel functional entity DPF or said compressed feedback parameter of said service flow authorized entity SFA configuration.

13., it is characterized in that this method further comprises like arbitrary described method among the claim 8-10:

Said data channel functional entity DPF sends the feedback Indication message to the base station, carries the service flow parameters of said mandate in the said feedback Indication message.

14. a data channel functional entity is characterized in that, comprising:

Detection module, whether be used to detect has the service flow of carrying terminal data need send feedback information;

Processing module, said processing module comprises: acquisition module is used to obtain a compressed feedback parameter; First processing sub, a compressed feedback parameter that is used for obtaining according to said acquisition module are carried out parameter authorization to the service flow of carrying said feedback information and are handled the service flow parameters that generation is authorized; Or

Said processing module comprises: acquisition module is used to obtain a compressed feedback parameter; Determination module, the service flow that is used to confirm to be used to carry feedback information; Second processing sub is used for according to said compressed feedback parameter the said service flow that is used to carry feedback information being carried out parameter authorization, generates the service flow parameters of authorizing.

15. data channel functional entity as claimed in claim 14 is characterized in that, said detection module comprises:

First receives submodule, is used to receive the trigger request of self terminal, and whether detect according to said trigger request has the service flow needs that carry terminal data to send feedback information; Or

Whether second detection sub-module is used for self detecting and has the service flow of carrying terminal data need send feedback information.

16. data channel functional entity as claimed in claim 14 is characterized in that, said processing module comprises:

First sends submodule, is used for sending a request message to service flow authorized entity SFA, and request is carried out parameter authorization to the service flow of carrying said feedback information;

Second receives submodule, is used to receive the request response from said service flow authorized entity SFA, carries the service flow parameters of mandate in the described request response.

17. like claim 14 or 16 described data channel functional entities, it is characterized in that, also comprise:

Passage is set up module, is used for setting up data channel according to the service flow parameters of said mandate.

18. like claim 14 or 16 described data channel functional entities, it is characterized in that, also comprise:

Second sends submodule, is used for sending the feedback Indication message to the base station, carries the service flow parameters of said mandate in the said feedback Indication message.

19. a communication system is characterized in that said system comprises data channel functional entity, but said data channel functional entity links to each other with the terminal with communication mode;

Said data channel functional entity comprises detection module and processing module, and whether said detection module is used to detect said terminal has the service flow of carrying terminal data need send feedback information;

Said processing module comprises: acquisition module is used to obtain a compressed feedback parameter; First processing sub, a compressed feedback parameter that is used for obtaining according to said acquisition module are carried out parameter authorization to the service flow of carrying said feedback information and are handled the service flow parameters that generation is authorized; Or,

20. communication system as claimed in claim 19 is characterized in that, said terminal is used for need sending feedback information if detect the service flow of carrying terminal data, then sends trigger request to said data channel functional entity;

Said data channel functional entity comprises that also first receives submodule, and said first receives submodule is used to receive said trigger request of coming self terminal, and whether detect according to said trigger request has the service flow needs that carry terminal data to send feedback information.

21. communication system as claimed in claim 19 is characterized in that, said system also comprises service flow authorized entity SFA;

Said data channel functional entity DPF comprises that also first sends the submodule and the second reception submodule; Said first sends submodule is used for sending a request message to said service flow authorized entity SFA; Request is carried out parameter authorization to the service flow of carrying said feedback information, carries the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in the described request message; Said second receives submodule is used to receive the request response from said service flow authorized entity SFA, carries the service flow parameters of mandate in the described request response;

Said service flow authorized entity SFA is used to obtain a compressed feedback parameter; According to said compressed feedback parameter the service flow of carrying said feedback information is carried out parameter authorization, generate the service flow parameters of authorizing; The service flow parameters of said mandate is sent to said data channel functional entity DPF through the request response.

22. communication system as claimed in claim 19 is characterized in that, said system also comprises strategy authorization entity;

Said data channel functional entity DPF comprises that also first sends the submodule and the second reception submodule; Said first sends submodule is used for sending a request message to service flow authorized entity SFA; Request is carried out parameter authorization to the service flow of carrying said feedback information, carries the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in the described request message; Said second receives submodule is used to receive the request response from said service flow authorized entity SFA, carries the service flow parameters of mandate in the described request response;

Said service flow authorized entity SFA; Be used for sending second request message, carry the service flow sign SFID that indication request is set up the indication information of the service flow be used to carry feedback information or carried the service flow that is used to carry feedback information in said second request message to said strategy authorization entity; Reception is carried the service flow parameters of mandate from the second request response of said strategy authorization entity in the said second request response; Send the request response to said data channel functional entity DPF, carry the service flow parameters of mandate in the described request response;

Said strategy authorization entity is used to receive second request message from said service flow authorized entity SFA, according to a compressed feedback parameter that generates in advance the service flow of carrying said feedback information is carried out parameter authorization, generates the service flow parameters of authorizing; The service flow parameters of said mandate is sent to said service flow authorized entity SFA through the second request response.