CN101360097A - Method, network and network element for forwarding packet - Google Patents

Method, network and network element for forwarding packet Download PDF

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Publication number
CN101360097A
CN101360097A CNA2008100894795A CN200810089479A CN101360097A CN 101360097 A CN101360097 A CN 101360097A CN A2008100894795 A CNA2008100894795 A CN A2008100894795A CN 200810089479 A CN200810089479 A CN 200810089479A CN 101360097 A CN101360097 A CN 101360097A
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sdf
network element
message
gateway
network
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CN101360097B (en
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胡颖
银宇
王珊珊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention discloses a method, a network and a network element of forwarding the message. The method comprises the following: upstream network elements in adjacent two network elements match received messages to the corresponding service data flow, and mark same SDF ID obtained by the adjacent two network elements in the message according to the matched service data flow, and then forwards the message to downstream network elements in the adjacent two network elements; and the downstream network elements identify the SDF ID marked in the message, and match the message to the corresponding service data flow in contrast with the obtained SDF ID. Before the message is forwarded, the adjacent two network elements obtain the same SDF ID; when the message is forwarded, the upstream network elements mark the obtained SDF ID in the message, and the downstream network elements identify the SDF ID marked in the message, and match the message to the corresponding service data flow, so the message filtering operation is not needed once again, and the forwarding delay of the message in the network.

Description

A kind of method that E-Packets, network and network element
Technical field
The present invention relates to the communications field, particularly relate to the method, network and the network element that E-Packet.
Background technology
Referring to shown in Figure 1, be the Organization Chart of SAE (3GPP System Architecture Evolution, 3-G (Generation Three mobile communication system) architecture evolution) net.Wherein the grounding wireless access network network E-UTRAN of evolution (being the SAE wireless access network) inserts message data gateway (PDN Gateway, PacketData Network) visit outer net by S1 and S5 interface.The non-3GPP wireless access network inserts message data gateway access outer net by the S2 interface.
Because non-3GPP Access Network and SAE core net may be two operator's operations, perhaps the non-3GPP wireless access network needs according to the wireless technology characteristics of oneself message to be made policy control.So on Access Network gateway and SAE core net gateway (being PDN Gateway), a PEF (Policy Enforcement Function can be arranged respectively, policy enforcement function), to use PCC (Policy Control andCharging, the strategy and the control of chargeing) to the message implementation strategy and the control of chargeing.
Framework based on above-mentioned SAE net, in the process that message is transmitted in the SAE net, each network element (comprising: PDN Gateway, Access Network gateway and terminal) with PEF function all must be done packet filtering (for example the IP five-tuple filters) and come the differentiated service data flow, thereby realizes QoS (the Qualityof Service service quality) security function based on business data flow.
The inventor finds in the invention process, has two or more network element implementation strategy controlled function in the network under the PCC framework, and all need to do identical packet filtering operation, so that message is matched business data flow, increased the message forwarding time delay like this.
Summary of the invention
The embodiment of the invention provides a kind of method that E-Packets, network and a kind of network element, to reduce the forwarding time delay in the network of message under the PCC framework.
The embodiment of the invention provides a kind of method that E-Packets, and comprises the following steps:
Sending direction according to message, upstream network element in adjacent two network elements matches the corresponding service data flow with the message that receives, and according to the business data flow that matches, the identical SDF ID that described adjacent two network elements of mark are obtained in this message is forwarded to this message the downstream network element in described adjacent two network elements then; And
Described downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
The embodiment of the invention provides a kind of first network element, comprising:
Acquiring unit is used for obtaining identical SDF ID with the adjacent network element of described first network element;
Indexing unit, being used for will be when its adjacent downstream network element E-Packets at described first network element, with identical this message of SDF ID mark that obtains with this downstream network element;
Recognition unit is used for when this first network element receives the message that its adjacent upstream network element issues, and according to the identical SDF ID that obtains with this upstream network element, discerns the SDF ID of mark in this message.
The embodiment of the invention provides a kind of network that E-Packets, and comprising: the first adjacent network element and second network element of packet route direction; Wherein,
Described first network element, be used for obtaining identical SDF ID, and the message that is received is matched the corresponding service data flow with described second network element, and according to the business data flow that matches, the SDF ID that mark obtained in this message, and described message transmitted to described second network element;
Described second network element is used for obtaining identical SDF ID with described first network element, and the SDF ID that discerns mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
The embodiment of the invention provides a kind of first network element, is used for the transmission of message, and this first network element is adjacent with second network element to be connected, and described first network element comprises:
Acquiring unit is used for obtaining the unified SDF ID of all network elements of the whole network that the 3rd network element is distributed;
Recognition unit is used for the SDF ID according to the unified SDF ID identification message mark that is obtained.
In the embodiment of the invention, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Description of drawings
Fig. 1 is the Organization Chart of existing SAE net;
Fig. 2 is the method step flow chart of the embodiment of the invention;
Fig. 3 is the structural representation of a kind of network element of the embodiment of the invention;
Fig. 4 is the structural representation of the another kind of network element of the embodiment of the invention;
Fig. 5 is the message forwarding process schematic diagram of the embodiment of the invention 1;
Fig. 6 is the message forwarding process schematic diagram of the embodiment of the invention 2;
Fig. 7 is the message forwarding process schematic diagram of the embodiment of the invention 3;
Fig. 8 is the message forwarding process schematic diagram of the embodiment of the invention 4;
Fig. 9 is the message forwarding process schematic diagram of the embodiment of the invention 5;
Figure 10 is the message forwarding process schematic diagram of the embodiment of the invention 6;
Figure 11 is the message forwarding process schematic diagram of the embodiment of the invention 7;
Figure 12 is the message forwarding process schematic diagram of the embodiment of the invention 8;
Figure 13 is the message forwarding process schematic diagram of the embodiment of the invention 9;
Figure 14 is the structural representation of a kind of network element of the embodiment of the invention;
Figure 15 is the structural representation of the another kind of network element of the embodiment of the invention;
Figure 16 is the structural representation of the another kind of network element of the embodiment of the invention.
Embodiment
The inventor finds in the invention process, the basic granularity of distinguishing the different business data flow under the PCC framework is business data flow SDF, be which kind of QoS realization mechanism all is based on SDF, so can be by the logical tunnel of the less SDF granularity of expense of realization, avoid multiple spot to repeat five-tuple and filter, thus the forwarding time delay in the network of minimizing message under the PCC framework.Below for convenience of description, this logical tunnel is called " SDF tunnel ".
Based on the content that the foregoing invention people finds in the invention process, the embodiment of the invention provides a kind of method that E-Packets, and comprising:
Sending direction according to message, upstream network element in adjacent two network elements matches the corresponding service data flow with the message that receives, and according to the business data flow that matches, the identical business datum traffic identifier SDF ID that described adjacent two network elements of mark are obtained in this message is forwarded to this message the downstream network element in described adjacent two network elements then; And
Described downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
Referring to shown in Figure 2, the method that E-Packets comprises following key step:
S1, two adjacent network elements obtain identical business datum traffic identifier SDF ID.
In the embodiment of the invention, described network element has strategy and the charging controlled function of message execution based on business data flow.
Wherein, two adjacent network elements are meant adjacent two network elements on the packet route, two for example adjacent messages are transmitted network element or two adjacent network elements with policy control functions, can be message and transmit network element, perhaps one of them transmits network element for message, another is a terminal, and two adjacent network elements obtain identical SDF ID and have dual mode:
All described network elements obtain identical SDF ID to same business data flow on mode one, the message forwarding path.Specifically can (for example distribute SDF ID by arbitrary network element, it promptly can be the network element that is E-Packeted, it also can be other the 3rd network element, described the 3rd network element can be: PCRF, or mobile management net element, perhaps other gateways), and mutual by between each network element, make that all network elements obtain identical SDF ID to same business data flow on the message forwarding path.
For example, can be the unique SDF ID of each business datum flow distribution by PCRF, specifically can be with reference to following embodiment 1 and 2.
For example, can also be the unique SDF ID of each business datum flow distribution in the IP-CAN session, and pass to another network element in described adjacent two network elements that specifically asking can be with reference to following embodiment 3,4,6,7 by any one network element in described adjacent two network elements.
Mode two, according to the sending direction of message, each downstream network element is that the upstream network element that is adjacent is distributed SDF ID, thereby realizes that this downstream network element and the upstream network element that is adjacent obtain identical SDF ID.
For example, specifically asking can be with reference to following embodiment 5 and 8.
After two adjacent network elements obtain identical SDF ID, promptly finished the foundation in SDF tunnel.
S2, according to the sending direction of message, the source point network element matches the corresponding service data flow with this message.
Described two adjacent network elements all are arranged in same policy control territory, the edge network element that described source point network element can be this policy control territory, perhaps described source point network element also can be in any adjacent two network elements in same policy control territory, at the sending direction of message, receive the network element (being upstream network element) of message at first.According to the sending direction of message, the source point network element matches the corresponding service data flow by packet filtering operation (filtering as five-tuple) with message.
S3, source point network element are according to the business data flow that matches, the SDF ID that this source point network element of mark is obtained in this message.
Specifically can be in the flow label field in the IPv6 head mark SDF ID; Perhaps mark SDF ID in the scaling option in the IP head; Perhaps mark SDF ID in the encapsulation tunnel head.
Each network element in S4, source point network element downstream is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
If among the step S1, employing mode one realizes that adjacent network element obtains identical SDF ID, and then the SDF ID of the downstream network element Direct Recognition source point network element mark of source point network element gets final product, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
If among the step S1, employing mode two realizes that adjacent network element obtains identical SDF ID, and then the source point network element is in the process that E-Packets, and needing with the downstream network element that is adjacent is this message of SDF ID mark of its distribution; The downstream network element of source point network element is discerned the SDF ID of its upstream network element mark, and contrasts the SDF ID that self distributes this message is matched the corresponding service data flow.
The embodiment of the invention provides has gone back a kind of network that E-Packets, and is not limited to the SAE network, comprising: the first adjacent network element and second network element of packet route direction; Wherein,
Described first network element, be used for obtaining identical SDF ID, and the message that is received is matched the corresponding service data flow with described second network element, and according to the business data flow that matches, the SDF ID that mark obtained in this message, and described message transmitted to described second network element;
Described second network element is used for obtaining identical SDF ID with described first network element, and the SDF ID that discerns mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
The source point network element that above-mentioned network specifically can be determined according to the sending direction of message, and each network element in this source point network element downstream.Concrete described source point network element or each network element in downstream include but not limited to: have Access Network gateway, SAE core net gateway to message implementation strategy and charging controlled function, or the SAE network termination.Wherein, two adjacent network elements obtain identical SDF ID;
The source point network element is used for message is matched the corresponding service data flow, and according to the business data flow that matches, the SDF ID that this source point network element of mark is obtained in this message;
Source point network element downstream network element is used for discerning the SDF ID of this message mark, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
The embodiment of the invention provides has gone back a kind of network element 10, referring to shown in Figure 3, comprising: acquiring unit 11, indexing unit 13 and recognition unit 15.
Acquiring unit 11 is used for the network element adjacent with this network element 10 and obtains identical SDF ID.Concrete, if all network elements obtain identical SDF ID to same business data flow on the message forwarding path, then the network element 10 of present embodiment is source point network element (the edge network element in a policy control territory); If according to the sending direction of message, each downstream network element is that the upstream network element that is adjacent is distributed SDF ID, and then the network element 10 of present embodiment is the arbitrary network element in the policy control territory.
Indexing unit 13 is used for this message of SDF ID mark to obtain.
Recognition unit 15 is used for discerning the SDF ID of this message mark.
The embodiment of the invention provides has gone back another kind of network element 20, referring to shown in Figure 4, comprising: acquiring unit 21 and recognition unit 23.
Acquiring unit 21 is used for obtaining the unified SDF ID of all network elements of the whole network.Concrete, if all network elements obtain identical SDF ID to same business data flow on the message forwarding path, then the network element 20 of present embodiment is the arbitrary non-source point network element in the policy control territory.
Recognition unit 23 is used for discerning the SDF ID of message mark.
Such scheme not only can be used for the network of PCC/SAE framework, and other is similarly had Business Stream identification, is suitable for too based on the network of Business Stream policy control.Below specifically describe by a plurality of embodiment.
Embodiment 1
Need between gateway 1 and the gateway 2 to control with charging for the message that transmits provides based on the strategy of Business Stream, and by strategy and charging regulation function entity (PCRF, Policy and Charging EnforcementFunction) distributes the unified SDF ID of the whole network (purpose IP address and SDF ID two tuples can business data flow of unique identification), perhaps to same business data flow, PCRF is that network elements different on the message forwarding path distributes identical SDF ID.Referring to shown in Figure 5, comprise following content:
1, gateway 1 (having the implementation strategy controlled function) is mutual with PCRF, and acquisition strategy and charging control rule are the SDF ID of each business datum flow distribution comprising PCRF.
2, gateway 2 (having the implementation strategy controlled function) is mutual with PCRF, and acquisition strategy and charging control rule are the SDF ID of each business datum flow distribution comprising PCRF.Gateway 2 has the division of identical business data flow and corresponding SDF ID with the strategy that gateway 1 obtains respectively with charging control rule.
So far, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
Because described SDF ID is by the whole network unified SDFID of PCRF for each business datum flow distribution, perhaps with regard to same business data flow, by PCRF is that different network elements is distributed identical SDFID on the message forwarding path, so at gateway on the message forwarding path 1 and gateway 2, the SDF ID that it distributed is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
Then, when descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow.
When uplink message arrives:
Gateway 1 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 2, the SDF ID of mark in gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow.
Above-mentioned mark SDF ID finishes the method for SDF tunnel encapsulation, can be:
Can adopt one of following manner to finish for IPv6:
1, SDF ID is filled in " Flow label " field of IP head.
2, redetermination tunnel encapsulation form is independently perhaps used existing tunneling mechanism (for example Key of gre tunneling), carries SDF ID.When IP transmitted, the message packing forms was as follows:
Outer IP head
The tunnel layer encapsulation
Internal layer IP head.
Can adopt one of following manner to finish for IPv4:
1, in IP option head (option), defines a scaling option that carries SDF ID.
2, redetermination tunnel encapsulation form is independently perhaps used existing tunneling mechanism (for example Key of gre tunneling), carries SDF ID.When IP transmitted, the message packing forms was as follows:
Outer IP head
The tunnel layer encapsulation
Internal layer IP head.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 2
Need between terminal, gateway 1 and the gateway 2 for data provide based on the strategy of Business Stream and the control of chargeing, and distribute the unique SDF ID of each business data flow in the IP-CAN session (be purpose IP address and SDF ID two tuples can business data flow of unique identification) by PCRF.Referring to shown in Figure 6, comprise following content:
1, gateway 1 (having the implementation strategy controlled function) is mutual with PCRF, and acquisition strategy and charging control rule are the SDF ID of each business datum flow distribution comprising PCRF.
2, gateway 1 sends to terminal to the uplink message policing rule that obtains, and comprises the SDF ID of up business data flow correspondence.
3, gateway 2 (having the implementation strategy controlled function) is mutual with PCRF, and acquisition strategy and charging control rule are the SDF ID of each business datum flow distribution comprising PCRF.Gateway 2 has the division of identical business data flow and corresponding SDF ID with the strategy that gateway 1 obtains with charging control rule.
Because PCRF distributes the unique SDF ID of each business data flow in the IP-CAN session, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
So far, terminal, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow.
When terminal sends uplink message:
Terminal according to the packet filtering device in the policy control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the policy control rule of this business data flow of application corresponding, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1 and gateway 2, the SDF ID of mark in gateway 1 and gateway 2 these messages of identification, and according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 3
Need between terminal, gateway 1 and the gateway 2 for data provide based on the strategy of Business Stream and the control of chargeing, and distribute the unique SDF ID of each business data flow in the IP-CAN session (be purpose IP address and SDF ID two tuples can business data flow of unique identification) by gateway 2.Referring to shown in Figure 7, comprise following content:
1, gateway 2 (having the implementation strategy controlled function) is mutual with PCRF, acquisition strategy and charging control rule.And be the SDF ID of each business datum flow distribution by gateway 2.
2, gateway 1 (having the implementation strategy controlled function) is mutual with PCRF, acquisition strategy and charging control rule.And mutual with gateway 2, obtaining by gateway 2 is the SDF ID of each business datum flow distribution.
3, gateway 1 sends to terminal to the uplink message policing rule that obtains, and comprises the SDF ID of up business data flow correspondence.
So far, terminal, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
Because gateway 2 distributes the unique SDF ID of each business data flow in the IP-CAN session, and passes to gateway 1, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from gateway 2 and the corresponding relation of business data flow.
When terminal sends uplink message:
Terminal according to the packet filtering device in the policy control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the policy control rule of this business data flow of application corresponding, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1 and gateway 2, the SDF ID of mark in gateway 1 and gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the corresponding relation of SDF ID and business data flow.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 4
Need between terminal, gateway 1 and the gateway 2 for data provide based on the strategy of Business Stream and the control of chargeing, and distribute the unique SDF ID of each business data flow in the IP-CAN session (be purpose IP address and SDF ID two tuples can business data flow of unique identification) by gateway 2.Referring to shown in Figure 8, comprise following content:
1, PCRF sends to gateway 2 (having the implementation strategy controlled function) to strategy and charging control rule.
2, gateway 2 is each up-downgoing business datum flow distribution SDF ID, and SDF ID is carried on from strategy and charging control rule that PCRF obtains, sends to gateway 1.
3, gateway 1 comprises the SDF ID that uplink business data flows with the uplink message policing rule that obtains, and sends to terminal.
So far, terminal, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have finished the foundation in SDF tunnel.
Because gateway 2 distributes the unique SDF ID of each business data flow in the IP-CAN session, and passes to gateway 1, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from gateway 2 and the corresponding relation of business data flow.
When terminal sends uplink message:
Terminal according to the packet filtering device in the policy control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the policy control rule of this business data flow of application corresponding, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from gateway 2 and the corresponding relation of business data flow.
The SDF ID of mark in gateway 2 these messages of identification, and according to the SDF ID that distributes and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 5
Need between terminal, gateway 1 and the gateway 2 for data provide based on the strategy of Business Stream and the control of chargeing, by message transmitting party to downstream network element be that upstream network element is distributed SDF ID, have unified SDF ID between two promptly adjacent network elements.Referring to shown in Figure 9, comprise following content:
1, PCRF sends to gateway 2 (having the implementation strategy controlled function) to strategy and charging control rule.
2, gateway 2 will send to gateway 1 from strategy and the charging control rule that PCRF obtains, and is the SDF ID (a) of each uplink business data flow distribution comprising gateway 2.
3, the gateway 1 up strategy and the charging regulation that will obtain sends to terminal, is included as each uplink business data flow distribution SDF ID (b).
4, the up strategy and the charging regulation message of 1 transmission of terminal responds gateway show the message acceptance success.
5, gateway 1 is replied the strategy and the charging regulation message of gateway 2, is included as the SDF ID (c) of each downlink service data flow distribution.
6, gateway 2 response PCRF strategies and charging regulation successful installation.
So far, terminal, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and according to the sending direction of message, the downstream network element that upstream network element has obtained to be adjacent is the SDF ID of its distribution, has finished the foundation in SDF tunnel.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID (c), finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID (c) of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDFID (c) of gateway 1 distribution and the corresponding relation of business data flow.
When terminal sends uplink message:
Terminal according to the packet filtering device in the policy control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the policy control rule of this business data flow of application corresponding, and in message mark SDF ID (b), finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID (b) of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID (b) of gateway 1 distribution and the corresponding relation of business data flow.
Gateway 1 also needs the corresponding relation with business data flow according to the SDF ID (a) that obtains from gateway 2, and the business datum flow label in the message is changed into SDF ID (a), sends to gateway 2.
The SDF ID (a) of mark in gateway 2 these messages of identification, and according to the SDF ID (a) of gateway 2 distribution and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 6
Need between gateway 1 and the gateway 2 to control with charging for data provide based on the strategy of Business Stream, and by the unique SDF ID of each business data flow in IP-CAN session of gateway 1 distribution, be that purpose IP address (or IP-CAN sign ID) and SDF ID two tuples can business data flows of unique identification, and (for example by third party's network element, PCRF, or mobile management net element, perhaps other gateways) be given to gateway 2, there is unified SDF ID between two promptly adjacent network elements.Referring to shown in Figure 10, comprise following content:
1, PCRF sends the policy control rule and pushes request to gateway 1 (having the implementation strategy controlled function), and the policy control rule is carried in this request, the message that the request gateway is carried out.
2, after gateway 1 receives that the policy control rule of PCRF pushes request, be each the traffic flow assignment ID in the rule, promptly SDF ID returns the response response message to PCRF then, carries the SDF ID that is distributed.
3, PCRF sends to gateway 2 together to SDF ID and the policy control rule obtained.
4, after gateway 2 receives, return the response response message to PCRF.
So far, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
Because gateway 1 distributes the unique SDF ID of each business data flow in the IP-CAN session, and passes to gateway 2, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that distributes and the corresponding relation of business data flow.
When gateway 1 sends uplink message:
Gateway 1 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 2, the SDF ID of mark in gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow.
Gateway 1 can further send to terminal to policy filtering rule and upstream data SDF id information, make terminal obtain the upstream data SDF id information identical with gateway 1, and when sending uplink message, message is matched the operation of business data flow according to the packet filtering device, and in message mark SDFID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and according to the SDF ID that oneself distributes and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow, and filtering packets no longer, and directly use the SDF ID mark message that receives message, further E-Packet to gateway 2.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 7
Need between gateway 1 and the gateway 2 to control with charging for data provide based on the strategy of Business Stream, and by the unique SDF ID of each business data flow in IP-CAN session of gateway 2 distribution, be that purpose IP address (or IP-CAN sign ID) and SDF ID two tuples can business data flows of unique identification, and (for example by third party's network element, PCRF, or mobile management net element, perhaps other gateways) be given to gateway 1, there is unified SDF ID between two promptly adjacent network elements.Referring to shown in Figure 11, comprise following content:
1, gateway 1 (having the implementation strategy controlled function) sends strategy and charging control rule request to PCRF, request strategy control law information.
2, PCRF is according to request message, the decision strategy control law, and a policy control rule that generates sent to gateway 2 (having the implementation strategy controlled function).
3, after gateway 2 obtains newly-generated policy control rule,, be each traffic flow assignment ID according to the Business Stream information in the rule, i.e. SDF ID, and carry SDF ID and in response message, send to PCRE.
4, after PCRF receives the response message of gateway 2,, carry the policy control Rule Information of generation, and comprise the SDF ID that obtains from gateway 2 to gateway 1 echo reply message.
So far, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
Because gateway 2 distributes the unique SDF ID of each business data flow in the IP-CAN session, and passes to gateway 1, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from PCRF and the corresponding relation of business data flow.
When gateway 1 sends uplink message:
Gateway 1 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 2, the SDF ID of mark in gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that self distributes and the corresponding relation of business data flow.
Same, gateway 1 can further send to terminal to policy filtering rule and upstream data SDF id information, make terminal obtain the upstream data SDF id information identical with gateway 1, and when sending uplink message, message is matched the operation of business data flow according to the packet filtering device, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and according to the SDF ID that obtains and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow, and filtering packets no longer, and directly use the SDF ID mark message that receives message, further E-Packet to gateway 2.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 8
Need between gateway 1 and the gateway 2 to control with charging for data provide based on the strategy of Business Stream, need between gateway 1 and the gateway 2 to control with charging for data provide based on the strategy of Business Stream, by message transmitting party to downstream network element be that upstream network element is distributed SDF ID, and (for example by third party's network element, PCRF, or mobile management net element, perhaps other gateways) be given to upstream network element, there is unified SDF ID between two promptly adjacent network elements.Referring to shown in Figure 12, comprise following content:
1, PCRF sends the policy control rule and pushes request to gateway 1 (having the implementation strategy controlled function).
2, after gateway 1 was received the request of PCRF, each the downlink business flow distribution SDF ID (a) in the rule returned the response response message to PCRF then, carries the SDF ID (a) that is distributed.
3, PCRF sends to gateway 2 (having the implementation strategy controlled function) to the SDF ID (a) of the downstream service flow that obtains and strategy with charging control rule.
4, be each the uplink service flow distribution SDF ID (b) in the rule after gateway 2 receives, return the response response message to PCRF then, carry the SDF ID (b) that is distributed.
5, PCRF sends to gateway 1 to the SDF ID (b) of the uplink service stream that obtains.
6, after gateway 1 is received the SDF ID (b) of the uplink service stream that PCRF sends, SDF ID in the control law of renewal uplink service stream is SDF ID (b), if also comprise the out of Memory of the control law of uplink service stream in the message that PCRF sends, then upgrade accordingly, after renewal was finished, response was finished message and is given PCRF.
So far, gateway 1 and gateway 2 have obtained strategy and the charging control rule with the business data flow coupling, and have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID (a), finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID (a) of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the corresponding relation of the SDF ID (a) that self distributes with business data flow.
When gateway 1 sends uplink message:
Gateway 1 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID (b), finish the SDF tunnel encapsulation.After message is forwarded to gateway 2, the SDF ID (b) of mark in gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the corresponding relation of the SDF ID (b) that self distributes with business data flow.
Same, gateway 1 can further distribute the SDF ID (c) of uplink service stream and send to terminal according to policy rule information, make terminal obtain the upstream data SDF id information identical with gateway 1, and when sending uplink message, message is matched the operation of business data flow according to the packet filtering device, and in message mark SDF ID (c), finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID (c) of mark in gateway 1 this message of identification, and according to the corresponding relation of the SDF ID (c) that self distributes with business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow, and filtering packets no longer, and directly be mapped to SDF ID (b) mark message according to SDF ID (c), further E-Packet to gateway 2.
Above-mentioned mark SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
Among the foregoing invention embodiment, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting according to the sending direction of message, the upstream network element SDF ID that mark obtained in this message, downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation, so reduced the forwarding time delay of message in network.
Embodiment 9
Need between gateway 1 and the gateway 2 to distribute the unique SDF ID of each business data flow for data provide policy control based on Business Stream by gateway 1, promptly purpose IP address (or IP-CAN sign ID) and SDFID two tuples can business data flows of unique identification.And send gateway 2 to, there is unified SDF ID between promptly adjacent two network elements 1,2.Referring to shown in Figure 13, comprise following content:
1, gateway 1 (having the implementation strategy controlled function) is mutual with PCRF, obtains the Business Stream policy control information.
2, each traffic flow assignment unique traffic stream identifier SDF ID of gateway 1 for obtaining, and send the Business Stream updating message to third party's network element (for example, PCRF, or mobile management net element, perhaps other gateways).Message is carried the traffic stream identifier information of being distributed.
3, third party's network element is transmitted the Business Stream updating message and is given gateway 2, carries the traffic stream identifier information that gateway 1 is distributed.
So far, gateway 1 and gateway 2 have obtained the SDF ID corresponding with business data flow, have promptly finished the foundation in SDF tunnel.
Because gateway 1 distributes the unique SDF ID of each business data flow in the IP-CAN session, and passes to gateway 2, so gateway 2 and 1 pair of same business data flow of gateway, the SDF ID that obtains is identical.
The correspondence of supposing gateway 1, gateway 2 and terminal is: gateway 2 communicates to connect with gateway 1, and gateway 1 is connected with terminal communication.
When descending message arrives:
Gateway 2 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that distributes and the corresponding relation of business data flow.
When gateway 1 sends uplink message:
Gateway 1 according to the packet filtering device in strategy and the charging control rule (for example, the IP five-tuple filters) message is matched the operation of business data flow, the strategy of this business data flow of application corresponding and charging control rule, and in message mark SDF ID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 2, the SDF ID of mark in gateway 2 these messages of identification, and, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow according to the SDF ID that obtains from third party's network element and the corresponding relation of business data flow.
Gateway 1 can further send to terminal to policy filtering rule and upstream data SDF id information, make terminal obtain the upstream data SDF id information identical with gateway 1, and when sending uplink message, message is matched the operation of business data flow according to the packet filtering device, and in message mark SDFID, finish the SDF tunnel encapsulation.After message is forwarded to gateway 1, the SDF ID of mark in gateway 1 this message of identification, and according to the SDF ID that oneself distributes and the corresponding relation of business data flow, this message is matched the corresponding service data flow, and use the strategy and the charging control rule of this business data flow, and filtering packets no longer, and directly use the SDF ID mark message that receives message, further E-Packet to gateway 2.
Packet labeling SDF ID, the method for finishing the SDF tunnel encapsulation is described with embodiment 1.
The embodiment of the invention provides also a kind of message transmission network, this message transmission network comprises first network element and second network element, first network element and second network element are arranged in same policy control territory and adjacent, described first network element and second network element all can be following any one: have Access Network gateway, SAE core net gateway, or a SAE network termination to message implementation strategy and charging controlled function.
Wherein, described first network element is used for obtaining identical SDF ID with second network element, and the message that is received matched the corresponding service data flow, and according to the business data flow that matches, the SDF ID that mark obtained in this message, and described message transmitted to described second network element;
Described second network element is used for obtaining identical SDF ID with first network element, and the SDF ID that discerns mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
Described first network element or second network element can be for any one has the network element to message implementation strategy and charging controlled function in the policy control territory, described first network element and second network element all both can receive the message that its adjacent upstream network element issues, again can be to its adjacent downstream network element downward message.But for convenience of description, below all with the network element general designation, specifically shown in Figure 14,15,16.
Referring to shown in Figure 14, a kind of network element 30 comprises: acquiring unit 31, message retransmission unit 32, indexing unit 33 and recognition unit 34.
Acquiring unit 31 is used for the network element adjacent with described network element 30 and obtains identical SDF ID.
Concrete, its detailed process of obtaining can reference example 1,2 in the acquisition process of gateway 1 or gateway 2, be that acquiring unit 31 is used to obtain the unified SDF ID of the whole network that PCRF distributes, perhaps be used to obtain at same business datum, PCRF is the identical SDF ID that the different network elements of process on the message forwarding path is distributed, and perhaps being used to obtain PCRF is unique SDF ID that each business data flow is distributed in the IP-CAN session.
Message retransmission unit 32 is used to receive message that the upstream network element adjacent with network element 30 issue and E-Packets to the downstream network element adjacent with network element 30.
Indexing unit 33, being used for will be when its adjacent downstream network element E-Packets at network element 30, with identical this message of SDF ID mark that obtains with this downstream network element.Described this message of SDF ID mark, the method for finishing the SDF tunnel encapsulation is can reference example 1 described.
Recognition unit 34 is used for when this network element 30 receives the message that its adjacent upstream network element issue, and according to the identical SDF ID that obtains with this upstream network element, discerns the SDF ID of mark in this message.
Referring to shown in Figure 15, a kind of network element 40 comprises: acquiring unit 41, message retransmission unit 42, indexing unit 43 and recognition unit 44.
Acquiring unit 41 is used for the network element adjacent with described network element 40 and obtains identical SDF ID.
Concrete, the detailed process that it obtains, can reference example 3,4,6,7,9 in the acquisition process of gateway 1 or gateway 2, for example, described acquiring unit 41 can comprise: distribute subelement 411, transmit subelement 413 and receive subelement 415.
Distribute subelement 411, be used to the unique SDF ID of each business datum flow distribution in the IP-CAN session.
Transmit subelement 413, be used for the SDF ID that transmits described distribution to the upstream network element adjacent or downstream network element with network element 40, specifically can directly send to adjacent network element, also can be (for example by third party's network element, PCRF, or mobile management net element, perhaps other gateways) send to adjacent network element.
Receive subelement 415, be used to receive the SDF ID that upstream network element adjacent with network element 40 or downstream network element send.
Message retransmission unit 42 is used to receive message that the upstream network element adjacent with network element 40 issue and E-Packets to the downstream network element adjacent with network element 40.
Indexing unit 43, being used for will be when the downstream network element that is adjacent E-Packets at network element 40, with identical this message of SDF ID mark that obtains to unit with this downstream.Described this message of SDF ID mark, the method for finishing the SDF tunnel encapsulation is can reference example 1 described.
Recognition unit 44 is used for when network element 40 receives the message that the upstream network element that is adjacent issues, and according to the identical SDF ID that obtains with this upstream network element, discerns the SDF ID of mark in this message.
Referring to shown in Figure 16, a kind of network element 50 comprises: acquiring unit 51, message retransmission unit 52, indexing unit 53 and recognition unit 54.
Acquiring unit 51 is used for the network element adjacent with described network element 50 and obtains identical SDF ID.
Concrete, its detailed process of obtaining can reference example 5 and 8 in the acquisition process of gateway 1 or gateway 2, for example, described acquiring unit 51 can comprise: distribute subelement 511, transmit subelement 513 and receive subelement 515.
Distributing subelement 511, be used for the sending direction according to message, in two adjacent network elements, when described network element 50 during as downstream network element, is the unique SDF ID of each business datum flow distribution in the IP-CAN session.
Transmit subelement 513, be used for sending direction according to message, in two adjacent network elements, when described network element 50 during as downstream network element, send the SDF ID that described distribution subelement 511 distributes to the upstream network element adjacent with network element 50, specifically can be directly to adjacent upstream network element transmission, also can be (for example by third party's network element, PCRF, or mobile management net element, perhaps other gateways) send to adjacent upstream network element.
Receive subelement 515, be used for sending direction, in two adjacent network elements,, receive the SDF ID that the downstream network element adjacent with network element 50 sends when network element 50 during as upstream network element according to message.
Message retransmission unit 52 is used to receive message that the upstream network element adjacent with network element 50 issue and E-Packets to the downstream network element adjacent with network element 50.
Indexing unit 53, being used for will be when the downstream network element that is adjacent E-Packets, with identical this message of SDF ID mark that this downstream network element was sent at this network element 50.Described this message of SDF ID mark, the method for finishing the SDF tunnel encapsulation is can reference example 1 described.
Recognition unit 54 is used for according to the SDF ID that described distribution subelement 511 is distributed, discerning the SDF ID of mark in this message when this network element 50 receives the message that the upstream network element that is adjacent issues.
One of ordinary skill in the art will appreciate that all or part of step that realizes any embodiment among the foregoing description 1-9 is to instruct relevant hardware to finish by program, described program can be stored in the storage medium of an embodied on computer readable, described storage medium, as: ROM/RAM, magnetic disc, CD etc.In sum, in the embodiment of the invention, because before carrying out the message forwarding, two adjacent network elements obtain identical business datum traffic identifier SDF ID.When E-Packeting,, have only the source point network element that this message is matched corresponding service data flow (filtering as five-tuple) according to the sending direction of message, and according to the business data flow that matches, the SDF ID that this source point network element of mark is obtained in this message.Each network element in source point network element downstream only need be discerned the SDF ID of mark in this message, and the SDF ID that obtained of contrast matches the corresponding service data flow with this message, and need not to carry out once more the packet filtering operation.So the embodiment of the invention makes message only need be filtered coupling once, the SDF that can finish message on the way on other each network elements distinguishes, and does not need to filter again, thereby has reduced the time delay that message transmits.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (18)

1, a kind of method that E-Packets is characterized in that, comprises the following steps:
Sending direction according to message, upstream network element in adjacent two network elements matches the corresponding service data flow with the message that receives, and according to the business data flow that matches, the identical business datum traffic identifier SDF ID that described adjacent two network elements of mark are obtained in this message is forwarded to this message the downstream network element in described adjacent two network elements then; And
Described downstream network element is discerned the SDF ID of mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
2, the method for claim 1 is characterized in that, the acquisition methods of described identical SDF ID comprises: described adjacent two network elements obtain the identical SDF ID that the 3rd network element is distributed respectively.
3, method as claimed in claim 2 is characterized in that, described the 3rd network element is PCRF, gateway or mobile management net element.
4, the method for claim 1 is characterized in that, the method that described adjacent two network elements obtain identical SDFID comprises: the unified SDF ID of the whole network that described adjacent two network elements obtain PCRF respectively and distributed.
5, the method for claim 1, it is characterized in that, the method that described adjacent two network elements obtain identical SDFID comprises: any network element is each business datum flow distribution SDF ID in described adjacent two network elements, and passes to another network element in described adjacent two network elements.
As each described method of claim 1 to 5, it is characterized in that 6, described SDF ID is marked at the flow label field in the IPv6 head of message; Or be marked in the scaling option in the IP head of message; Perhaps be marked in the encapsulation tunnel head of message.
7, a kind of network that E-Packets is characterized in that, comprising: the first adjacent network element and second network element of packet route direction; Wherein,
Described first network element, be used for obtaining identical SDF ID, and the message that is received is matched the corresponding service data flow with described second network element, and according to the business data flow that matches, the SDF ID that mark obtained in this message, and described message transmitted to described second network element;
Described second network element is used for obtaining identical SDF ID with described first network element, and the SDF ID that discerns mark in this message, and the SDF ID that contrast is obtained matches the corresponding service data flow with this message.
8, network as claimed in claim 7 is characterized in that, described first network element and second network element include an acquiring unit, is used for obtaining respectively the 3rd network element and is the identical SDF ID that described first network element and second network element are distributed.
9, network as claimed in claim 8 is characterized in that, described the 3rd network element is PCRF, gateway or mobile management net element.
10, network as claimed in claim 7 is characterized in that, described first network element comprises an acquiring unit, is used to each business datum flow distribution SDF ID, and passes to described second network element.
11, network as claimed in claim 7 is characterized in that, described second network element comprises an acquiring unit, is used to each business datum flow distribution SDF ID, and passes to described first network element.
12, network as claimed in claim 7 is characterized in that, described first network element and second network element are Access Network gateway, the SAE core net gateway that has message implementation strategy and charging controlled function, or the SAE network termination.
13, network as claimed in claim 7 is characterized in that, described first network element and second network element all are arranged in same policy control territory.
14, a kind of first network element is characterized in that, described first network element comprises:
Acquiring unit is used for obtaining identical SDF ID with the adjacent network element of described first network element;
Indexing unit, being used for will be when its adjacent downstream network element E-Packets at described first network element, with identical this message of SDF ID mark that obtains with this downstream network element.
15, first network element as claimed in claim 14 is characterized in that, further comprises:
Recognition unit is used for when described first network element receives the message that its adjacent upstream network element issues, and according to the identical SDF ID that obtains with this upstream network element, discerns the SDF ID of mark in this message.
16, first network element as claimed in claim 14 is characterized in that, described acquiring unit further comprises: distribute subelement, transmit subelement, wherein,
Described distribution subelement is used to each business datum flow distribution SDF ID;
Described forwarding subelement is used for the SDF ID that transmits described distribution to the upstream network element adjacent with first network element or downstream network element.
17, as claim 14 or 16 described first network elements, it is characterized in that described acquiring unit further comprises:
Receive subelement, be used to receive the SDFID of upstream network element adjacent or downstream network element transmission with first network element.
18, a kind of first network element is used for the transmission of message, and this first network element is adjacent with second network element to be connected, and it is characterized in that, described first network element comprises:
Acquiring unit is used for obtaining the unified SDF ID of all network elements of the whole network that the 3rd network element is distributed;
Recognition unit is used for the SDF ID according to the unified SDF ID identification message mark that is obtained.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101621472B (en) * 2009-07-30 2012-04-18 杭州华三通信技术有限公司 Message transmission method and router
WO2015055021A1 (en) * 2013-10-17 2015-04-23 中兴通讯股份有限公司 Network packet forwarding method and device
WO2015100644A1 (en) * 2013-12-31 2015-07-09 华为技术有限公司 Method and apparatus for processing packet
WO2016000513A1 (en) * 2014-07-03 2016-01-07 华为技术有限公司 Method and device for updating processing manner of service flow packet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101001443A (en) * 2006-01-13 2007-07-18 华为技术有限公司 Method of identifying service flow in communication network

Cited By (5)

* Cited by examiner, † Cited by third party
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CN101621472B (en) * 2009-07-30 2012-04-18 杭州华三通信技术有限公司 Message transmission method and router
WO2015055021A1 (en) * 2013-10-17 2015-04-23 中兴通讯股份有限公司 Network packet forwarding method and device
WO2015100644A1 (en) * 2013-12-31 2015-07-09 华为技术有限公司 Method and apparatus for processing packet
WO2016000513A1 (en) * 2014-07-03 2016-01-07 华为技术有限公司 Method and device for updating processing manner of service flow packet
US10205656B2 (en) 2014-07-03 2019-02-12 Huawei Technologies Co., Ltd. Method and apparatus for updating manner of processing packet of service flow

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