CN102014448B - Business flow binding method, equipment and system - Google Patents
Business flow binding method, equipment and system Download PDFInfo
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Abstract
The embodiment of the invention provides a business flow binding method and equipment. The method comprises the following steps of: obtaining business flow information which user equipment (UE) needs to build through a target network; allocating business flow identification (FID) for the business flow which needs to be built through the target network, and establishing the binding relationship of the FID with corresponding business flow; and sending the binding relationship of the FID with corresponding business flow to a packet data network gateway (PGW) so as to make the PGW store the binding relationship of the FID with corresponding business flow.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of binding method, equipment and system of Business Stream.
Background technology
The core net of wireless evolution network SAE comprises: Mobility Management Entity (Mobility Management Entity, MME), gateway (Serving Gateway, SGW), packet data gateway (Packet Data Network Gateway, the logic function body such as PGW), MME is wherein for being responsible for NAS(NON ACCESS STRATUM, Non-Access Stratum) function such as signaling and the encryption of NAS signaling and roaming, tracking, distributing user temporary identity mark, safety function etc.SGW is responsible for mobility anchor point and the Lawful Interception relevant information of local mobility anchor point and 3GPP internal system; PGW is for being responsible for strategy execution and charging and Lawful Interception correlation function.
In the prior art, have the subscriber equipment of many network accessibilities can be at synchronization by multiple Business Streams by different network insertions, for example, a Business Stream accesses by 3GPP, another Business Stream is by non-3GPP(non3GPP) access, and Business Stream can be switched between different access technologies, for example in prior art, can, in the time that UE accesses heterogeneous networks, realize Business Stream is switched in different access networks by network side.
But whole Business Streams that current handover mechanism only can be realized under an IP are switched to 3GPP network from non-3GPP network, and cannot realize the flexible switching to Business Stream, as the partial service stream under an IP is switched to 3GPP network from non-3GPP network.
Summary of the invention
In order to overcome defect of the prior art, the embodiment of the present invention provides a kind of binding method, equipment and system of Business Stream, has realized the flexible switching to Business Stream.
On the one hand, the embodiment of the present invention provides a kind of binding method of Business Stream, the method comprises: in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or when described subscriber equipment switches to non-3GPP network from 3GPP network, obtain the Business Stream information that user equipment (UE) need to be set up by objective network; For the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, set up the binding relationship of described FID and corresponding Business Stream, described FID and Business Stream are described has corresponding relation, and described Business Stream is described the five-tuple information that comprises described Business Stream; The IP address information CoA of the described Business Stream that need to set up by objective network is set to the IP address information HoA of home network; The binding relationship message of described FID and corresponding Business Stream is sent to packet data gateway PGW, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
On the one hand, the embodiment of the present invention provides a kind of binding method of Business Stream, the method comprises: the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the Business Stream that need to set up by objective network is set to the IP address information HoA of home network, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network, record Business Stream corresponding to described Business Stream information and the binding relationship of described FID, send described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the corresponding relation of described Business Stream and FID.
On the one hand, the embodiment of the present invention provides a kind of user equipment (UE), this subscriber equipment comprises: acquiring unit, for in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or when described subscriber equipment switches to non-3GPP network from 3GPP network, obtain the Business Stream information that user equipment (UE) need to be set up by objective network; Binding unit, be used to the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, set up the binding relationship of described FID and corresponding Business Stream, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, the IP address information CoA of the Business Stream that wherein, need to set up by objective network is set to the IP address information HoA of home network; The first transmitting element, for the binding relationship of described FID and corresponding Business Stream is sent to packet data gateway PGW by message, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
On the one hand, the embodiment of the present invention provides a kind of packet data gateway, this packet data gateway comprises: receiving element, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the Business Stream that need to set up by objective network is set to the IP address information HoA of home network, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network, record cell, for recording Business Stream corresponding to described Business Stream information and the binding relationship of described FID, the second transmitting element, for sending described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the corresponding relation of described Business Stream and FID.
On the other hand, the invention provides a kind of binding system of Business Stream, this system comprises: packet data gateway PGW, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the Business Stream that need to set up by objective network is set to the IP address information HoA of home network, record Business Stream corresponding to described Business Stream information and the binding relationship of described FID, and send described Business Stream and the binding relationship of FID to policy decision entity PCRF, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network, policy decision entity PCRF, for recording the Business Stream of described PGW transmission and the binding relationship of FID.
The binding method of the Business Stream providing by the embodiment of the present invention, equipment and system, UE can be by different traffic flow assignment FID, and FID and corresponding Business Stream are bound, send to network side, network side receives and preserves this binding relationship, follow-up in the time initiating stream switching or flow Establishing process, carry the corresponding FID of Business Stream that need to switch or set up, can realize the flexible processing to respective traffic flows.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the binding method of a kind of Business Stream that Fig. 1 provides for the embodiment of the present invention one;
The flow chart of the binding method of a kind of Business Stream that Fig. 2 provides for the embodiment of the present invention two;
The flow chart of the binding method of a kind of Business Stream that Fig. 3 provides for the embodiment of the present invention three;
The flow chart of the binding method of a kind of Business Stream that Fig. 4 provides for the embodiment of the present invention four;
The flow chart of the binding method of a kind of Business Stream that Fig. 5 provides for the embodiment of the present invention five;
The structure chart of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention six;
The structure chart of a kind of packet data gateway that Fig. 7 provides for the embodiment of the present invention seven;
The structure chart of the binding system of a kind of Business Stream that Fig. 8 provides for the embodiment of the present invention eight.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention provides a kind of binding method of Business Stream, and as shown in Figure 1, the method comprises:
Step 101, obtains the Business Stream information that user equipment (UE) need to be set up by objective network;
Step 102, is the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, sets up the binding relationship of described FID and corresponding Business Stream;
Step 103, sends to packet data gateway PGW by the binding relationship of described FID and corresponding Business Stream, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
Wherein, described in, obtaining the Business Stream information that user equipment (UE) need to set up by objective network comprises: receive PGW and send the Business Stream information that need to set up by objective network; Or receive the Business Stream information that need to set up by objective network that policy decision entity PCRF sends by PGW;
Wherein, when the definite Business Stream that need to set up by objective network of described PGW or slightly decision entity (Policy Charging Rule Function, PCRF) exists in former network, described Business Stream is switched to objective network by PGW or PCRF.
Wherein, described PGW or PCRF, according to the pre-configured Business Stream information that need to access by objective network with by the Business Stream information of former network insertion, determine that the Business Stream that need to set up by objective network exists in former network.
Wherein, described in, obtain user equipment (UE) need to by objective network set up Business Stream be at: described subscriber equipment in the time that 3GPP network is carried out the initial access of Business Stream; Or when described subscriber equipment switches to 3GPP network from non-3GPP network; Or described subscriber equipment switches to non-3GPP network from 3GPP network.
Wherein, in one embodiment of the present invention, described Business Stream information is traffic flow template TFT;
Described FID and Business Stream are described has corresponding relation, and described Business Stream is described the five-tuple information that comprises described Business Stream.
In another embodiment of the present invention, also comprise in the front the method for step 101: UE obtains IP address, the local HoA that PGW distributes;
The IP address CoA that delivers of UE is made as identical with HoA;
Now, in the message that UE sends, also comprise: the HoA of this UE and CoA.
The binding method of the Business Stream providing by the present embodiment, UE can be by different traffic flow assignment FID, and FID and corresponding Business Stream are bound, send to network side, network side receives and preserves this binding relationship, follow-up in the time initiating stream switching flow, carry the corresponding FID of Business Stream that need to switch, can realize the flexible processing to respective traffic flows.
Embodiment bis-
The embodiment of the present invention provides a kind of binding method of Business Stream, and as shown in Figure 2, the method comprises:
Step 201, the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends;
Step 202, records Business Stream corresponding to described Business Stream information and the binding relationship of described FID;
Step 203, sends described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the corresponding relation of described Business Stream and FID.
Wherein, in another embodiment of the present invention, described method also comprises: send BA message to described UE, this BA message is for confirming that PGW has recorded the corresponding relation of described Business Stream and FID.
In one embodiment of the present invention, before the message of the Business Stream information that what described reception UE sent comprise need to set up by objective network and corresponding FID binding relationship, comprise:
Determine according to configuration in advance the Business Stream information that described UE need to set up by objective network, and send to described UE; Or receive the PCC rule that PCRF sends, in described PCC rule, comprise the Business Stream information that UE need to set up by objective network of stating;
When described UE receives the described Business Stream information that need to be switched to objective network, be described Business Stream information distribution FID, and described FID and corresponding Business Stream information are bound.
In one embodiment of the present invention, described method also comprises: if the Business Stream that need to set up by objective network exists at former network, described Business Stream is switched to former network from objective network, and initiates resource modifying flow process to former network, discharge the described Business Stream in former network.
The binding method of the Business Stream providing by the above embodiment of the present invention, UE can be by different traffic flow assignment FID, and FID and corresponding Business Stream are bound, send to network side, network side receives and preserves this binding relationship, follow-up in the time initiating stream switching flow, carry the corresponding FID of Business Stream that need to switch, can realize the flexible processing to respective traffic flows.
Embodiment tri-
The embodiment of the present invention provides a kind of binding method of Business Stream, as shown in Figure 3, comprising:
Step 1:UE accesses by non-3 GPP access network.
Wherein, between PGW and UE, can set up DSMIP tunnel, optionally, summary decision entity (Policy Charging Rule Function, PCRF) is set up IP with PGW and is connected access to network conversation (IP Connectivity Access Network session, IP CAN session), PCRF can obtain the mark (ID) of UE, the information such as Access Point Name (Access Point Name, APN) and IP address, PCRF closes and PGW distributing policy information to non-3 GPP access network;
Step 2～3: this UE accesses by 3GPP access network; As sending, UE adheres to request to MME, and UE and network side execution authentication process;
Step 4:MME initiates default bearer (Default Bearer) process of establishing to SGW, as: MME sends default bearer and sets up request message to SGW, wherein this default bearer is set up the parameter such as ID and APN that can comprise UE in request message, wherein this APN can be the APN that UE uses during by non-3GPP network insertion, and SGW sets up request message by this default bearer and is transmitted to PGW;
Step 5:PGW distributes the IP address identical with the APN of this UE in the time that non-3GPP accesses to UE, and further, if without PCC subordinate, PGW can determine the Business Stream information that need to set up at 3GPP network according to configuration in advance.
Optionally, if SAE has disposed PCC(policy control and charging, Policy Control and Charging) system, PGW initiates IP connection access to network conversation amendment (IP CAN session modification) process to PCRF, report 3GPP access information, determined the Business Stream that need to set up by PCRF in 3GPP network; PCRF returns to PCC rule to PGW in response message; in this PCC rule, include the Business Stream information that need to set up at 3GPP network; further; the access information that can also comprise the Business Stream that need to set up at 3GPP network in this response message, wherein access information can be Access Network ID or RAT(radio access technology wireless access technology) type information etc.;
Wherein, the Business Stream routing rule of the upper configuration of PGW or PCRF can be: when UE can pass through 3GPP network insertion, again can be by non-3GPP network insertion time, PGW or PCRF configure whole business of this UE by 3GPP network insertion or non-3GPP network insertion; Or the differences such as the QoS based on business, the partial service of configuration UE accesses by 3GPP, and partial service accesses by non-3GPP.If the Business Stream that need to set up under 3GPP access technology exists in former non-3GPP side, this Business Stream process of establishing is switching flow; If the Business Stream that need to set up under 3GPP access technology does not exist in former non-3GPP side, this Business Stream process of establishing is new service flow Establishing process.
Step 6:PGW replys default bearer to SGW and sets up response message, and this carrying sets up to comprise in response message needs the Business Stream information set up in 3GPP network, as traffic flow template (Traffic Flow Template, TFT); SGW replys carrying to MME and sets up response message, and this carrying is set up and in response message, comprised the Business Stream information that need to set up at 3GPP network;
Step 7:MME replys to adhere to UE by Access Network gateway and accepts message, and this adheres to accepts to comprise the Business Stream information that UE need to set up at 3GPP network in message, as TFT information;
Step 8: network side is new bearer more, MME notifies base station beared information to SGW;
Step 9:UE is from accepting adhering to of receiving to obtain the Business Stream information that need to set up at 3GPP network message, and be this traffic flow assignment traffic stream identifier (Flow ID, FID), and the FID of this Business Stream and Business Stream are bound, send to PGW by Mobile IP (Mobile IP, MIP) message; As UE sends Binding Update BU message to PGW; In this binding update messages, comprise the correspondence relationship information of FID and Business Stream, further, in this binding update messages, can also comprise CoA and/or HoA information;
Wherein this traffic stream identifier can be the numbering to Business Stream, this numbering can adopt Arabic numerals, this traffic stream identifier and Business Stream are described Flow description and are had corresponding relation, wherein to describe Flow description can be the concrete content that this Business Stream comprises to this Business Stream, as five-tuple information (source IP, object IP address, source port number, destination slogan, protocol number etc.
Further, IP address information CoA that can also the corresponding Business Stream of this UE is set to the IP address information HoA of home network, in order to represent that this UE is by local binding home binding.
Wherein, the restriction that above-mentioned steps 8,9 can not have on execution sequence.
Step 10:PGW receives after this BU message, obtains and preserve the FID that comprises in this BU message and the corresponding relation of Business Stream, realizes the binding of FID and Business Stream; Further; PGW carries out IP to PCRF and connects access to network conversation amendment (IP CAN session modification) process, carries the corresponding relation of FID and Business Stream in the message of transmission; PCRF records the corresponding relation of FID and flow;
Step 11:PGW replys binding acknowledgement BA message to UE.
Set up after the corresponding relation of Business Stream and FID at PGW and/or PCRF, if initiating stream, UE or network side switch, in this switching flow, can only comprise the FID of the Business Stream of needs switching, and need not comprise this Business Stream, flow description is described, as UE sends BU message to PGW, in this message, comprise FID, can not comprise Business Stream information flow description, PGW determines by identification FID the Business Stream information that this FID is corresponding, and corresponding Business Stream is carried out to handover operation.
Step 12: if there is stream handoff procedure, data flow is switched to 3GPP network from non-3GPP network, PGW or PCRF initiate resource modifying process to former non-3GPP side, to discharge the Business Stream of former non-3GPP side.
Wherein, in the present embodiment, PGW or PCRF can switch/be established to according to pre-configured decision-making the Business Stream of 3GPP side, and as existed without PCC time, and exchange between PCRF does not exist.
PGW and/or PCRF receive the corresponding relation that records FID and flow after BU message, and its corresponding relation can be a mapping table, and in the time that Flow description is TFT, its mapping table can be with reference to shown in table 1, as:
| FID1 | TFT?filter1 | TFT-Packet-Filter-Information1 | rule?id/name1 |
| FID2 | TFT?filter2 | TFT-Packet-Filter-Information2 | rule?id/name2 |
Table 1
Wherein, the above embodiment of the present invention accesses 3GPP network after non-3GPP network as example explanation taking UE in access simultaneously, but the present invention is not limited thereto, and in the time that UE accesses non-3GPP network after access 3GPP network simultaneously, this mechanism is applicable equally.
The binding method of the Business Stream providing by the above embodiment of the present invention, can make PGW and PCRF bind Business Stream and FID, thereby can realize PGW and partial service is flowed switching or the foundation in different network systems by PCRF.Especially realized the processing of switching from non-3GPP network to 3GPP network.
Embodiment tetra-
The embodiment of the present invention provides a kind of binding method of Business Stream, as shown in Figure 4, illustrates that the flow process that realizes Business Stream binding in SAE network between different entities, comprising in the time that UE initiates Business Stream stream switching/process of establishing:
Step 1～3:UE sends resource request Request Bearer Resource Modification message to MME, this resource request can comprise: business polymerization is described (Traffic Aggregate Description, TAD), the carrying of the grouping system of evolution represents (Evolved Packet System Bearer Identity) and QoS(Quality of Service, service quality), wherein TAD represents the operation to Business Stream, as increase/amendment/deletion, this message of MME transfer is to SGW, and this message is issued PGW by SGW;
Step 4: alternatively, if SAE network design PCC system, PGW sends IP CAN session modification message to PCRF, reports affected PCC rule, is determined the Business Stream that need to set up in 3GPP network by PCRF; PCRF returns to PCC rule to PGW in response message, in this PCC rule, include the Business Stream information that need to set up at 3GPP network, further, the access information that can also comprise the Business Stream that need to set up at 3GPP network in this response message, wherein access information can be Access Network ID or RAT(radio access technology wireless access technology) type information etc.;
Step 5～6: if SAE network is not disposed PCC system, PGW can determine the Business Stream information that need to set up at 3GPP network according to configuration in advance.
Wherein, the Business Stream routing rule of the upper configuration of PGW or PCRF can be: when UE can pass through 3GPP network insertion, again can be by non-3GPP network insertion time, PGW or PCRF configure whole business of this UE by 3GPP network insertion or non-3GPP network insertion; Or the differences such as the QoS based on business, the partial service of configuration UE accesses by 3GPP, and partial service accesses by non-3GPP.If the Business Stream that need to set up under 3GPP access technology exists in former non-3GPP side, this Business Stream process of establishing is switching flow; If the Business Stream that need to set up under 3GPP access technology does not exist in former non-3GPP side, this Business Stream process of establishing is new service flow Establishing process.
If described Business Stream process of establishing is new service flow Establishing process, PGW initiates dedicated bearer to SGW and sets up request; If described Business Stream process of establishing is switching flow, PGW initiates dedicated bearer update request to SGW; Described dedicated bearer is set up the Business Stream information that comprises the Business Stream that need to set up in request or update request in 3GPP network, as TFT; Described dedicated bearer is set up to request to SGW or update request is sent to MME;
Step 7:MME sends Attach Request message by Access Network gateway to UE, comprises the Business Stream information that UE need to set up at 3GPP network, as TFT information in this Attach Request message; ;
Step 8～9:MME replys dedicated bearer to SGW and sets up request or upgrade response, and SGW replys dedicated bearer to PGW and sets up request or upgrade response, and network side is new bearer more;
Step 10: alternatively, PGW replys IP CAN session modification to PCRF and completes response;
Step 11:UE obtains the Business Stream information that need to set up at 3GPP network from the Attach Request message receiving, and be this traffic flow assignment traffic stream identifier (Flow ID, FID), and the FID of this Business Stream and Business Stream are bound, send to PGW by MIP message; As UE sends Binding Update BU message to PGW; In this binding update messages, comprise the correspondence relationship information of FID and Business Stream, further, in this binding update messages, can also comprise CoA and/or HoA information;
Wherein this traffic stream identifier can be the numbering to Business Stream, this numbering can adopt Arabic numerals, this traffic stream identifier and Business Stream are described Flow description and are had corresponding relation, wherein to describe Flow description can be the concrete content that this Business Stream comprises to this Business Stream, as five-tuple information (source IP, object IP address, source port number, destination slogan, protocol number etc.
Further, IP address information CoA that can also the corresponding Business Stream of this UE is set to the IP address information HoA of home network, in order to represent that this UE is by local binding home binding.
Wherein, above-mentioned steps 8,9,10 and step 11 do not have the restriction on execution sequence.
Step 12:PGW receives after this BU message, obtains and preserve the FID that comprises in this BU message and the corresponding relation of Business Stream, realizes the binding of FID and Business Stream; Further, PGW sends IP CAN session modification message (IP CAN session modification Procedure) to PCRF, carries the corresponding relation of FID and flow in message; PCRF records the corresponding relation of FID and flow;
Step 13:PGW replys BA message in order to have confirmed the binding of FID and Business Stream to UE.
Set up after the corresponding relation of Business Stream and FID at PGW and/or PCRF, if initiating stream, UE or network side switch, in this switching flow, can only comprise the FID of the Business Stream of needs switching, and need not comprise this Business Stream, flow description is described, as UE sends BU message to PGW, in this message, comprise FID, can not comprise Business Stream information flow description, PGW determines by identification FID the Business Stream information that this FID is corresponding, and corresponding Business Stream is carried out to handover operation.
Step 14: if there is Business Stream handoff procedure, data flow is switched to 3GPP network from non-3GPP network, PGW or PCRF initiate resource modifying process to former non3GPP side, to discharge the Business Stream of former non-3GPP side.
Wherein, in the present embodiment, PGW or PCRF can switch/be established to according to pre-configured decision-making the Business Stream of 3GPP side, and as existed without PCC time, and exchange between PCRF does not exist.
PGW and/or PCRF receive the corresponding relation that records FID and flow after BU message, and its corresponding relation can be a mapping table, and in the time that Flow description is TFT, its mapping table can be with reference to shown in table 2, as:
| FID1 | TFT?filter1 | TFT-Packet-Filter-Information1 | rule?id/name1 |
| FID2 | TFT?filter2 | TFT-Packet-Filter-Information2 | rule?id/name2 |
Table 2
The binding method of the Business Stream providing by the above embodiment of the present invention, can make PGW and PCRF bind Business Stream and FID, thereby can realize PGW and partial service is flowed switching or the foundation in different network systems by PCRF.Especially realized the processing of switching from non-3GPP network to 3GPP network.
Embodiment five
The embodiment of the present invention provides a kind of binding method of Business Stream, as shown in Figure 5, illustrates that the flow process that realizes Business Stream binding in SAE network between different entities, comprising in the time that network side is initiated Business Stream stream switching/process of establishing:
Step 1:PCRF and/or PGW determine that initiation Business Stream switches and/or sets up, and this process may trigger (having carried out multiple access as UE is current) by the pre-configured strategy of network, or operation layer triggering (as AF triggers) etc.; Switch and/or set up if determine to initiate Business Stream by PCRF, PCRF returns to the PCC rule of related service stream and corresponding access information to PGW to PGW;
Wherein, the Business Stream routing rule of the upper configuration of PGW or PCRF can be: when UE can pass through 3GPP network insertion, again can be by non-3GPP network insertion time, PGW or PCRF configure whole business of this UE by 3GPP network insertion or non-3GPP network insertion; Or the differences such as the QoS based on business, the partial service of configuration UE accesses by 3GPP, and partial service accesses by non-3GPP.If the Business Stream that need to set up under 3GPP access technology exists in former non-3GPP side, this Business Stream process of establishing is switching flow; If the Business Stream that need to set up under 3GPP access technology does not exist in former non-3GPP side, this Business Stream process of establishing is new service flow Establishing process.
Step 2: if described Business Stream process of establishing is new service flow Establishing process, PGW initiates dedicated bearer to SGW and sets up request; If described Business Stream process of establishing is switching flow, PGW initiates dedicated bearer update request to SGW; Described dedicated bearer is set up the Business Stream information that comprises the Business Stream that need to set up in request or update request in 3GPP network, as TFT; Described dedicated bearer is set up to request to SGW or update request is sent to MME;
Step 3:MME sends Attach Request message by Access Network gateway to UE, comprises the Business Stream information that UE need to set up at 3GPP network, as TFT information in this Attach Request message;
Step 4:MME replys dedicated bearer to SGW and sets up request or upgrade response, and SGW replys dedicated bearer to PGW and sets up request or upgrade response, and network side is new bearer more;
Step 5: alternatively, PGW replys IP CAN session modification to PCRF and completes response;
Step 6:UE obtains the Business Stream information that need to set up at 3GPP network from the Attach Request message receiving, and be this traffic flow assignment traffic stream identifier (Flow ID, FID), and the FID of this Business Stream and Business Stream are bound, send to PGW by MIP message; As UE sends Binding Update BU message to PGW; In this binding update messages, comprise the correspondence relationship information of FID and Business Stream, further, in this binding update messages, can also comprise CoA and/or HoA information;
Wherein this traffic stream identifier can be the numbering to Business Stream, this numbering can adopt Arabic numerals, this traffic stream identifier and Business Stream are described Flow description and are had corresponding relation, wherein to describe Flow description can be the concrete content that this Business Stream comprises to this Business Stream, as five-tuple information (source IP, object IP address, source port number, destination slogan, protocol number etc.
Further, IP address information CoA that can also the corresponding Business Stream of this UE is set to the IP address information HoA of home network, in order to represent that this UE is by local binding home binding.
Wherein, above-mentioned steps 4,5 and step 6 do not have the restriction on execution sequence.
Step 7:PGW receives after this BU message, obtains and preserve the FID that comprises in this BU message and the corresponding relation of Business Stream, realizes the binding of FID and Business Stream; Further, PGW carries out IP CAN session modification (IP CAN session modification Procedure) to PCRF, carries the corresponding relation of FID and flow in message; PCRF records the corresponding relation of FID and flow;
Step 8:PGW replys BA message to have confirmed binding to UE.
Set up after the corresponding relation of Business Stream and FID at PGW and/or PCRF, if initiating stream, UE or network side switch, in this switching flow, can only comprise the FID of the Business Stream of needs switching, and need not comprise this Business Stream, flow description is described, as UE sends BU message to PGW, in this message, comprise FID, can not comprise Business Stream information flow description, PGW determines by identification FID the Business Stream information that this FID is corresponding, and corresponding Business Stream is carried out to handover operation.
Step 9: if there is Business Stream handoff procedure, data flow is switched to 3GPP network from non-3GPP network, PGW or PCRF initiate resource modifying process to former non3GPP side, to discharge the Business Stream of former non-3GPP side.
Wherein, in the present embodiment, PGW or PCRF can switch/be established to according to pre-configured decision-making the Business Stream of 3GPP side, and as existed without PCC time, and exchange between PCRF does not exist.
PGW and/or PCRF receive the corresponding relation that records FID and flow after BU message, and its corresponding relation can be a mapping table, and in the time that Flow description is TFT, its mapping table can be with reference to shown in table 3, as:
| FID1 | TFT?filter1 | TFT-Packet-Filter-Information1 | rule?id/name1 |
| FID2 | TFT?filter2 | TFT-Packet-Filter-Information2 | rule?id/name2 |
Table 3
The binding method of the Business Stream providing by the above embodiment of the present invention, can make PGW and PCRF bind Business Stream and FID, thereby can realize PGW and partial service is flowed switching or the foundation in different network systems by PCRF.Especially realized the processing of switching from non-3GPP network to 3GPP network.
Embodiment six
The embodiment of the present invention provides a kind of user equipment (UE), and as shown in Figure 6, this subscriber equipment comprises:
Acquiring unit 701, the Business Stream information that need to set up by objective network for obtaining user equipment (UE);
Binding unit 702, is used to the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, sets up the binding relationship of described FID and corresponding Business Stream;
The first transmitting element 703, for the binding relationship of described FID and corresponding Business Stream is sent to packet data gateway PGW, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
Wherein, described subscriber equipment carries out business at access network and comprises: described subscriber equipment directly accesses at 3GPP network; Described subscriber equipment switches to 3GPP network from non-3GPP network; Or described subscriber equipment switches to non-3GPP network from 3GPP network.
In another embodiment of the present invention, described acquiring unit also for: receive PGW send the Business Stream information that need to set up by objective network; Or receive the Business Stream information that need to set up by objective network that policy decision entity PCRF sends by PGW.
Described FID and Business Stream are described has corresponding relation, and described Business Stream is described the five-tuple information that comprises described Business Stream.
Wherein, each cell operation flow process and principle are identical with previous embodiment, do not repeat them here.
The subscriber equipment that the present embodiment provides, can carry out after different network systems accesses Business Stream is bound UE, flows switching or the foundation in different network systems thereby can realize partial service in UE.
Embodiment seven
The embodiment of the present invention provides a kind of packet data gateway PGW, and as shown in Figure 7, this PGW comprises:
Receiving element 701, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends;
Record cell 702, for recording Business Stream corresponding to described Business Stream information and the binding relationship of described FID;
The second transmitting element 703, for sending described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the corresponding relation of described Business Stream and FID.
In another embodiment of the present invention, described packet data gateway also comprises: decision package or the second receiving element,
Described decision package is for determining according to configuration in advance the Business Stream information that described UE need to set up by objective network;
The PCC rule that described the second receiving element sends for receiving PCRF, comprises the Business Stream information that UE need to set up by objective network of stating in described PCC rule;
The 3rd transmitting element, for sending to described UE by described Business Stream information.
Switch unit, for when the Business Stream that need to set up by objective network is in the time that former network exists, is switched to former network by described Business Stream from objective network, and initiates resource modifying flow process to former network, discharges the described Business Stream in former network.
Wherein, each cell operation flow process and principle are identical with previous embodiment, do not repeat them here.
The PGW providing by the above embodiment of the present invention, can make PGW bind Business Stream and FID, thereby can realize PGW, partial service is flowed to switching or the foundation in different network systems.
Embodiment eight
The embodiment of the present invention provides a kind of binding system of Business Stream, and as shown in Figure 8, this system comprises:
Packet data gateway 801, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends; Record Business Stream corresponding to described Business Stream information and the binding relationship of described FID; And send described Business Stream and the binding relationship of FID to policy decision entity PCRF;
Policy decision entity 802, for recording the Business Stream of described PGW transmission and the binding relationship of FID.
The binding system of the Business Stream providing by the above embodiment of the present invention, can make PGW and/or PCRF bind Business Stream and FID, thereby can realize PGW and/or partial service is flowed switching or the foundation in different network systems by PCRF.
Binding method to a kind of Business Stream provided by the present invention and equipment are described in detail above, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. a binding method for Business Stream, is characterized in that, the method comprises:
In the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is while switching to non-3GPP network from 3GPP network, obtains the Business Stream information that user equipment (UE) need to be set up by objective network;
For the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, set up the binding relationship of described FID and corresponding Business Stream, described FID and Business Stream are described has corresponding relation, and described Business Stream is described the five-tuple information that comprises described Business Stream;
The IP address information CoA of the described Business Stream that need to set up by objective network is set to the IP address information HoA of home network;
The binding relationship of described FID and corresponding Business Stream is sent to packet data gateway PGW, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
2. the binding method of Business Stream as claimed in claim 1, is characterized in that, described in obtain the Business Stream information that user equipment (UE) need to set up by objective network and comprise:
Receive the Business Stream information that need to set up by objective network that PGW sends; Or
Receive the Business Stream information that need to set up by objective network that policy decision entity PCRF sends by PGW.
3. Business Stream binding method as claimed in claim 2, is characterized in that, described PGW or PCRF determine that when the Business Stream that need to set up by objective network exists in former network, described Business Stream is switched to objective network by PGW or PCRF.
4. method as claimed in claim 3, is characterized in that, also comprises:
Described PGW or PCRF, according to the pre-configured Business Stream information that need to access by objective network with by the Business Stream information of former network insertion, determine that the Business Stream that need to set up by objective network exists in former network.
5. a binding method for Business Stream, is characterized in that, the method comprises:
The message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the described Business Stream that need to set up by objective network is set to the IP address information HoA of home network, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network,
Record Business Stream corresponding to described Business Stream information and the binding relationship of described FID;
Send described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the binding relationship of described Business Stream and FID.
6. method as claimed in claim 5, is characterized in that, before the message of the Business Stream information that what described reception UE sent comprise need to set up by objective network and corresponding FID binding relationship, also comprises:
Determine according to configuration in advance the Business Stream information that described UE need to set up by objective network, and send to described UE; Or
Receive policy control and charging PCC rule that PCRF sends, in described PCC rule, comprise the Business Stream information that UE need to set up by objective network of stating.
7. method as claimed in claim 6, is characterized in that:
When described UE receives the described Business Stream information that need to be switched to objective network, also described FID and corresponding Business Stream information are bound.
8. method as claimed in claim 5, is characterized in that, also comprises:
If the Business Stream that need to set up by objective network exists at former network, described Business Stream is switched to former network from objective network, and initiates resource modifying flow process to former network, discharge the described Business Stream in former network.
9. a user equipment (UE), is characterized in that, this subscriber equipment comprises:
Acquiring unit, in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is while switching to non-3GPP network from 3GPP network, obtains the Business Stream information that user equipment (UE) need to be set up by objective network;
Binding unit, be used to the described traffic flow assignment traffic stream identifier FID that need to set up by objective network, set up the binding relationship of described FID and corresponding Business Stream, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the described Business Stream that need to set up by objective network is set to the IP address information HoA of home network;
The first transmitting element, for the binding relationship of described FID and corresponding Business Stream is sent to packet data gateway PGW, so that described PGW preserves the binding relationship of described FID and corresponding Business Stream.
10. subscriber equipment as claimed in claim 9, is characterized in that, described acquiring unit also for:
Receive PGW and send the Business Stream information that need to set up by objective network; Or
Receive the Business Stream information that need to set up by objective network that policy decision entity PCRF sends by PGW.
11. 1 kinds of packet data gateway PGW, is characterized in that, this packet data gateway comprises:
Receiving element, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, wherein, the IP address information CoA of the described Business Stream that need to set up by objective network is set to the IP address information HoA of home network, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network,
Record cell, for recording Business Stream corresponding to described Business Stream information and the binding relationship of described FID;
The second transmitting element, for sending described Business Stream and the binding relationship of FID to policy decision entity PCRF, so that described PCRF preserves the corresponding relation of described Business Stream and FID.
12. packet data gateway as claimed in claim 11, is characterized in that, described packet data gateway also comprises: decision package or the second receiving element,
Described decision package is for determining according to configuration in advance the Business Stream information that described UE need to set up by objective network;
The PCC rule that described the second receiving element sends for receiving PCRF, comprises the Business Stream information that UE need to set up by objective network of stating in described PCC rule;
The 3rd transmitting element, for sending to described UE by described Business Stream information.
13. packet data gateway as claimed in claim 11, is characterized in that, described packet data gateway also comprises:
Switch unit, for when the Business Stream that need to set up by objective network is in the time that former network exists, is switched to former network by described Business Stream from objective network, and initiates resource modifying flow process to former network, discharges the described Business Stream in former network.
The binding system of 14. 1 kinds of Business Streams, is characterized in that, this system comprises:
Packet data gateway PGW, for the message that comprises the Business Stream information that need to set up by objective network and corresponding FID binding relationship that receives that UE sends, when described UE receives the described Business Stream information that need to be switched to objective network, for described Business Stream information distribution FID, described FID and Business Stream are described has corresponding relation, described Business Stream is described the five-tuple information that comprises described Business Stream, the IP address information CoA of the Business Stream that wherein, need to set up by objective network is set to the IP address information HoA of home network; Record Business Stream corresponding to described Business Stream information and the binding relationship of described FID; And send described Business Stream and the binding relationship of FID to policy decision entity PCRF, wherein, described binding relationship is in the time that subscriber equipment switches to 3GPP network from non-3GPP network, or described subscriber equipment is set up in the time that 3GPP network switches to non-3GPP network;
Policy decision entity PCRF, for receiving and record the Business Stream of described PGW transmission and the binding relationship of FID.
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| CN103181121B (en) * | 2011-10-21 | 2015-08-19 | 华为技术有限公司 | A kind of access processing method, equipment and system |
| CN107682900B (en) * | 2012-09-29 | 2020-11-17 | 华为终端有限公司 | Data flow control method and related equipment and communication system |
| CN105594165B (en) | 2014-09-05 | 2019-07-09 | 华为技术有限公司 | A kind of distributing strategy machinery of consultation and device |
| CN108616833B (en) * | 2016-12-08 | 2021-03-09 | 中国移动通信集团四川有限公司 | Method, device and system for processing PCC conversation, PGW and PCRF |
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