CN100484085C - Method for securing quality of transmitted group data service - Google Patents
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Abstract
This invention discloses a method ensuring the quality of transmission grouping data operation This method adopts operation quality model (QOS) of IP backbone net to transmit the grouping data operation, according to the different demands of different grouping data operations to QOS, the QOS model provides different loading resource and route choosing circuits, thereby ensure the reliability of the transmission grouping data operation in WCDMA. This method can ensure the QOS of the transmission grouping data operation.
Description
Technical field
The present invention relates to transmit the technology of Packet Service, particularly a kind of method that in Wideband Code Division Multiple Access (WCDMA) (WCDMA), guarantees the transmitting grouped data quality of service.
Background technology
At present, along with development of wireless communication devices, the mobile subscriber in the WCDMA network can accessing group data network, the transmitting and receiving packet data business.
Existing techniques in realizing is transmitted packet service method in the WCDMA network flow chart as shown in Figure 1, its concrete steps are:
Step 100, subscriber equipment (UE) activate request to universal grouping wireless business supporting node (SGSN) initiation packet data protocol content (PDP context), the request accessing group data network;
After step 101, SGSN receive this PDP context activation request, send the PDP context request to create of this UE to ggsn (GGSN);
Step 102, GGSN set up the transmitting grouped data service channel of this UE and packet data network after receiving this PDP context request to create, and return the response of PDP context request to create to SGSN;
Step 103, SGSN receive the response of PDP context request to create, send PDP context to this UE and activate request responding;
Step 104, this UE by the IP tunnel accessing group data network, carry out the transmitting-receiving of grouped data after receiving this PDP context activation request responding.
The transmitting grouped data service channel of this transmitting grouped data business not only needs to pass GPRS (GPRS) network between SGSN and the GGSN, and need pass IP network between GGSN and the Packet data service access point (SAP), when Packet data service is passed through these two networks, do not define the safeguard measure of any Packet data service quality (QOS) in the present agreement, the just transmission of doing one's best by the router of GPRS network and IP network, the QOS of its transmitting grouped data business depends on this two load conditions that network is current fully, can't guarantee the absolute QOS of transmitting grouped data business, especially for grouping data such as conversation class and stream classes, can't guarantee its QOS especially.Therefore, how guaranteeing the QOS in the Packet data service transmission course, is a problem demanding prompt solution.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that guarantees the transmitting grouped data service reliability in WCDMA, and this method can guarantee the QOS of transmitting grouped data business.
According to above-mentioned purpose, technical scheme of the present invention is achieved in that
A kind of method that guarantees the transmitting grouped data quality of service, in advance for the packet data network of different business quality requirement is provided with different APNs, this method also comprises:
A, subscriber equipment send the packet data protocol content activation request of carrying the packet data network APN that this subscriber equipment will insert to service universal grouping wireless business supporting node;
After B, service universal grouping wireless business supporting node receive the steps A described request, QoS parameter, source/destination address and the protocol type of the packet data network that will insert according to the APN obtaining step A described request in this request send the packet data protocol content creating request of carrying this QoS parameter, source/destination address and protocol type to ggsn;
After C, ggsn received step B described request, ggsn sent the bearing resource request message that has carried this QoS parameter, source/destination address and protocol type to coupled load network resource manager;
After D, load network resource manager were received this bearing resource request message, according to the QoS parameter in the message, source/destination address and protocol type distributed the bearer network resource to the Packet data service that this request will be transmitted;
The Packet data service that E, steps A described request will be transmitted is according to the described bearer network resource of step D, is transferred in the packet data network that the steps A described request will insert by bearing bed.
Before described step D, this method further comprises:
Load network resource manager judges whether to exist available bearer network resource, if, execution in step D, otherwise, the failure response of this bearing resource request message sent to ggsn.
The user class that sets in advance subscriber equipment is gold card user or domestic consumer;
Carry the user class of subscriber equipment in the request of the described packet data protocol content creating of step B;
Before described step C, this method further comprises: whether the user class in the request of the described packet data protocol content creating of ggsn determining step B is the gold card user class, and whether according to the Packet data service classification that the APN determining step A described request in this request will be transmitted is the high Packet data service type of requirement quality of service, if, execution in step C; Otherwise, the grouped data that will transmit according to normal flow treatment step A described request.
The described high Packet data service type of quality of service that requires is conversation class or stream class.
The user class of described subscriber equipment is arranged in the attaching position register;
User class in the request of the described packet data protocol content creating of step B is to obtain from attaching position register.
The user class of described subscriber equipment is arranged in the Odb-HPLMN-Data reserved field in the user attaching location register;
User class in the request of the described packet data protocol content creating of step B is to obtain in the Odb-HPLMN-Data reserved field from attaching position register.
The described type of service that is obtained by APN of step B is carried among the Traffic Class among the QOS Profile IE of packet data protocol content creating request.
This method further comprises the process that disconnects the transmitting grouped data business:
F11, subscriber equipment send the packet data protocol content deexcitation request of carrying the packet data network APN that this subscriber equipment will disconnect to service universal grouping wireless business supporting node;
After F12, service universal grouping wireless business supporting node receive step F 11 described requests, send the packet data protocol content removal request of carrying this APN to ggsn;
After F13, ggsn received step F 12 described requests, ggsn sent the bearing resource release message to coupled load network resource manager;
After F14, load network resource manager are received this bearing resource release message, discharge and keep for the steps A described request to want the resource of transmitting grouped data business, to the edge router transmission quality of service resource release command of bearing bed;
After the edge router of F15, bearing bed was received this quality of service resource release command, deletion steps A described request was wanted the route of transmitting grouped data business.
This method further comprises the process of upgrading the transmitting grouped data business:
F21, when the band of position of subscriber equipment changes, then the service universal grouping wireless business supporting node in current location zone sends the packet data protocol content update request carry the packet data network APN that this subscriber equipment will insert to ggsn;
After F22, ggsn receive step F 21 described requests, ggsn sends to coupled load network resource manager and discharges the old bearing resource message of this subscriber equipment, sends the bearing resource message between this subscriber equipment current location zone of request and the packet network again;
After F23, load network resource manager are received this bearing resource release message, discharge the old bearer network resource of this subscriber equipment, the current location zone of subscriber equipment and the bearing resource between the packet network are set;
The Packet data service that F24, bearing bed will transmit according to the bearing resource transmitting step A described request that step F 23 is provided with.
Described different APN is arranged on attaching position register or/and in the subscriber identification module in the subscriber equipment.
By such scheme as can be seen, method provided by the invention adopts the QOS model of IP backbone to come the transmitting grouped data business, the QOS model requires different different bearing resource and the route selections that provide according to the QOS of different grouping data service, thereby guarantee the method for transmitting grouped data service reliability in WCDMA, this method can guarantee the QOS of transmitting grouped data business.
Description of drawings
Fig. 1 is prior art is transmitted the method for Packet Service in the WCDMA network a flow chart.
Fig. 2 is the QOS model framework chart of IP network.
Fig. 3 is the network architecture figure that guarantees the QOS of institute's transmitting grouped data business of the present invention.
The embodiment flow chart of UE accessing group data network when Fig. 4 guarantees the QOS of institute's transmitting grouped data business for the present invention.
UE disconnected the embodiment flow chart of packet data network when Fig. 5 guaranteed the QOS of institute's transmitting grouped data business for the present invention.
UE upgraded the embodiment flow chart of accessing group data network when Fig. 6 guaranteed the QOS of institute's transmitting grouped data business for the present invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is further elaborated.
Method provided by the invention is come the transmitting grouped data business based on the QOS model of IP backbone network in the prior art, and the block diagram of the QOS model of this IP backbone network as shown in Figure 2.
This QOS model can be divided into three layers according to function, be respectively: service control layer, bearer control layer and bearing bed, wherein, service control layer is made up of all kinds of service servers of the processing grouped data application in the IP backbone network, to the bearer path of bearer control layer application Business Stream; Bearer control layer is made up of several explorers (CM), be in charge of the Internet resources of bearing bed, comprise bandwidth, processor and buffer (Buffer) etc., carry out resource for every Packet data service application that the Business Stream that QOS requires arranged and allow control, resource allocation and routing, satisfy the QOS requirement of flow of packet data traffic; Bearing bed can be divided into basic bearer network layer and logical bearers network layer, the IP backbone network physical entity that basis bearer network layer is made up of edge router and core router, carry all kinds of IP operation bags, the logical bearers network layer is each logical bearers network that utilizes label switched path (LSP) technology to plan in advance on basic bearer network layer and dispose, the IP operation bag of each logical bearers network carrying particular traffic type or specific QOS grade.
When of UE has Packet data service that QOS requires by service control layer during to the bearer control layer application, after this application is allowed by bearer control layer, bearer control layer is this Packet data service routing according to the QOS parameter of this Packet data service, and routing result and QOS attribute be handed down to edge router in the basic bearer network layer, make this packet traffic flows online by the logical bearers that this edge router enters this QOS class Packet data service, from this edge router, through behind some intermediate transit node routers, the edge router of reaching home.The unique flow definite and LSP of the LSP of this flow of packet data traffic has obtained strict control, take MPLSDiffServ (MPLS differential service) technology to E-Packet between each router, thereby make the QOS of this flow of packet data traffic obtain strict guarantee.
Because the IP backbone network comprises IP network and GPRS network, thus this QOS model can in IP network, realize, also can in GPRS network, realize.
Specific implementation of the present invention is that the network between SGSN and the GGSN is constructed with the QOS model of GPRS network, the network between GGSN and the packet service network constructed with the QOS model of IP network, thus the QOS of assurance institute transmitting grouped data business.As shown in Figure 3, Fig. 3 is the network architecture figure that guarantees the QOS of institute's transmitting grouped data business of the present invention:
This network is by SGSN, GGSN and the Service Access point (SAP) of service control layer, the CM of bearer control layer and the SGSN of bearing bed, GGSN, SAP and router are formed, wherein SGSN, GGSN and SAP are the network element of service control layer, are again the network elements of bearing bed.Bearing bed edge router in the GPRS network between SGSN and GGSN is BR1 and BR2, exists several core routers between edge router BR1 and the edge router BR2; Bearing bed edge router in the IP network between GGSN and SAP is BR3 and BR4, exists several core routers between edge router BR3 and the edge router BR4.
When the distance between the UE and the packet data network that will insert is distant, just need dispose a plurality of CM at bearer control layer, each CM draw oneself up edge router and core router in the compass of competency, when GGSN when connected CM initiates resource request, this CM and other CM hold consultation, judge whether bearing resource is enough, if bearing resource is enough, then the CM Packet data service that can will insert for this request is reserved the bearing resource from starting point edge router BR1 to terminal point edge router BR4, promptly carry bandwidth, determine two sections LSP of the Packet data service that this request will insert, otherwise this CM returns the response of bearing resource request failure.
Method provided by the invention is that different QOS services is adopted in different mobile subscribers or same mobile subscriber's different grouping data service, and its specific implementation is:
This mobile subscriber's user class when contracting Packet data service, the mobile subscriber is set, user class can be divided into the gold card user that QOS ensures and the domestic consumer of no QOS guarantee, and the user class that will be provided with is kept among the reserved field Odb-HPLMN-Data in the attaching position register (HLR), this reserved field Odb-HPLMN-Data has 4 bits, be used for defining mobile subscriber's priority level, it is gold card user or the domestic consumer of guaranteed QOS that the present invention utilizes one of them bit to distinguish the Packet data service that the mobile subscriber contracts.
When Packet data service was planned, the dissimilar Packet data service of requiring for different Q OS was provided with different APN, and this APN is stored among the HLR or/and in the Subscriber Identity Module of UE.
Use the QOS that network frame figure shown in Figure 3 just can guarantee institute's transmitting grouped data business, as shown in Figure 4, the embodiment flow chart of UE accessing group data network when Fig. 4 guarantees the QOS of institute's transmitting grouped data business for the present invention:
After step 401, SGSN receive this PDP context activation request, from HLR, obtain the user class of this UE, send the PDP context request to create of this UE to GGSN, Traffic Class field among the QOS Profile IE of this request to create carries the type of service of wanting the APN of accessing group data network to be converted to by this UE, and this request to create has also been carried user class and the QOS parameter of this UE and wanted the source/destination address and the protocol type of accessing group data network;
After step 402～403, GGSN receive this PDP context request to create, obtain the user class of this UE;
Because operator has defined different APN at the different packet service network that different Q OS requires, SGSN is converted to the type of service of grouped data according to APN, and the respective field in the QOS Profile IE of the PDP of this UE that sends to GGSN context request to create is carried the type of service and the QOS parameter of this grouped data;
If sending the user class of the UE of this request and be the type of the packet data network that gold card user and this request will insert is conversation class or the grouping of stream class, then GGSN sends the bearing resource request message to CM at twice, bearing resource between one of them bearing resource request message requests SGSN and the GGSN, bearing resource between another bearing resource request message requests GGSN and the SAP, comprise source/purpose IP address in these two bearing resource request messages, port numbers, applied procotol and the QOS parameter that should ask;
After step 403～404, CM receive these two request messages, according to the IP network topological sum resource operating position between GPRS net and GGSN and the SAP between SGSN and the GGSN, judge whether bearing resource is enough, if, the Packet data service bandwidth reserved that will insert for this request and select LSP then, CM refreshes occupation condition, send the QOS order of this Packet data service to edge router, this order comprises source/purpose IP address, the QOS parameter of port numbers, applied procotol, this request and the LSP of this transmitting grouped data business; Otherwise, change step 408 over to;
After step 405～406, edge router receive this QOS order, carry out routing policy and QOS strategy, and return the response of this QOS order to CM according to the parameter in this QOS order;
Step 407, CM return bearing resource application success message to GGSN after the response of receiving this QOS order;
If step 408 CM does not receive when the bearing resource of the response of this QOS order or CM is not enough, then returns bearing resource application failed message to GGSN;
After if step 409 GGSN receives this bearing resource application success message, send the success response of PDP context request to create to SGSN, after if GGSN receives this bearing resource application failed message, then send the failure response of PDP context request to create to SGSN;
Step 410, SGSN are after the success response of receiving this PDP context request to create, send the success response that this PDP context activates request to UE, if SGSN receives the failure response of PDP context request to create, then send the failure response that this PDP context activates request to UE.
PDP context activates the Packet data service of asking to insert not only can be transferred to SAP from UE, and can be transferred to UE from SAP.
Do not send if the PDP context request to create that GGSN receives is not the gold card user, then GGSN also handles this PDP context request to create according to normal flow of the prior art; If being the gold card user, the PDP context request to create that GGSN receives sends, but the Packet data service that this PDP context request to create will insert promptly is not a conversation class neither flow time-like, and then GGSN also handles this PDP context request to create according to normal flow of the prior art.
UE disconnected the embodiment flow chart of packet data network when as shown in Figure 5, Fig. 5 guaranteed the QOS of institute's transmitting grouped data business for the present invention:
After step 501, SGSN receive this PDP context deexcitation request, from HLR, obtain the configuration information of this UE, send the PDP context removal request of this UE to GGSN, respective field among the QOS Profile IE of this removal request is carried by this UE and will be disconnected the Packet Service type that packet data network APN obtains, and this removal request also carries the user class of UE;
Step 502, after GGSN receives this PDP context removal request, check this requesting users rank and the type of service of carrying, if send the user class of the UE of this request is that the Packet data service that gold card user and this request will insert is conversation class and stream class Packet Service, then send the releasing bearing resource request message to CM at twice, one of them bearing resource request message requests discharges the bearing resource between SGSN and the GGSN, another bearing resource request message requests discharges the bearing resource between GGSN and the SAP, comprise source/purpose IP address, port numbers in these two bearing resource request messages, the QOS parameter of applied procotol and this request;
After step 503～504, CM receive these two requests, be released to the Packet data service reserved resource that this request will disconnect, CM refreshes occupation condition, send the QOS release command of this Packet data service to edge router, this order comprises source/purpose IP address, the QOS parameter of port numbers, applied procotol, this request and the LSP of this transmitting grouped data business;
After step 504～506, edge router receive this QOS release command, discharge resource, and return the response of this QOS release command to CM according to the parameter in this QOS release command;
After step 507, CM receive the response of this QOS release command, return bearing resource to GGSN and discharge success message;
After step 509, SGSN receive the success response of this PDP Context removal request, send the success response of PDP context deexcitation request to UE.
Same, the packet data network that communicates with UE also can be initiated PDPcontext deexcitation request to GGSN, disconnection is communicated by letter with UE's, and this process is identical with the described process of Fig. 5, only initiates the packet data network that is of PDP context deexcitation request.
UE upgraded the embodiment flow chart of accessing group data network when as shown in Figure 6, Fig. 6 guaranteed the QOS of institute's transmitting grouped data business for the present invention:
If the band of position of step 600 UE changes, then new (new) SGSN in current location zone initiates PDP context update request to GGSN, and this update request is carried the APN that user class and this UE will insert packet network;
After step 601, GGSN receive this PDP context update request, check this requesting users classification and this APN, initiate to discharge old (old) SGSN and the bearing resource request between the GGSN to CM according to class of subscriber in this request and APN, initiate the application request of the bearing resource between newSGSN and the GGSN again;
Step 602～603, CM carry out refreshing of LSP gravity treatment and CM resource occupation after receiving these two requests, and the QOS that sends after upgrading to edge router orders;
After step 604～605, edge router received QOS order after this renewal, the parameter in the QOS order after upgrading according to this was carried out routing policy and QOS strategy, and returns the response of this QOS order to CM;
After step 606, CM receive the response of this QOS order, return bearing resource to GGSN and upgrade success message;
The above only is a most preferred embodiment of the present invention, the user class of the UE that wants accessing group data network also can be set in actual applications, and the APN that only is provided with according to UE determines that this UE initiates PDP context and activates the QOS that accessing group data network is wanted in request, and the CM that joins with GGSN wants the QOS of accessing group data network to distribute bearing resource according to this PDP context activation request.
Because the QOS that the Packet data service of conversation class or stream class requires is higher, so adopt the QOS model transmission session class of IP backbone or the Packet data service of stream class, the Packet data service of other classifications can adopt the transmission means transmission of prior art, also can adopt the QOS model of IP backbone to transmit.
Method provided by the invention not only can be implemented different QOS strategies according to different mobile subscribers, different service types, and can guarantee the absolute QOS of conversation class and the stream class of QOS; Method provided by the invention will be responsible for the bearing part equipment that control section equipment (CM) such as routing, resource allocation and responsible grouped data are transmitted, and promptly router separates, and has improved the efficient of router, has obtained good effect.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method that guarantees the transmitting grouped data quality of service is characterized in that, in advance for the packet data network of different business quality requirement is provided with different APNs, this method also comprises:
A, subscriber equipment send the packet data protocol content activation request of carrying the packet data network APN that this subscriber equipment will insert to service universal grouping wireless business supporting node;
After B, service universal grouping wireless business supporting node receive the steps A described request, QoS parameter, source/destination address and the protocol type of the packet data network that will insert according to the APN obtaining step A described request in this request send the packet data protocol content creating request of carrying this QoS parameter, source/destination address and protocol type to ggsn;
After C, ggsn received step B described request, ggsn sent the bearing resource request message that has carried this QoS parameter, source/destination address and protocol type to coupled load network resource manager;
After D, load network resource manager were received this bearing resource request message, according to the QoS parameter in the message, source/destination address and protocol type distributed the bearer network resource to the Packet data service that this request will be transmitted;
The Packet data service that E, steps A described request will be transmitted is according to the described bearer network resource of step D, is transferred in the packet data network that the steps A described request will insert by bearing bed.
2, the method for claim 1 is characterized in that, before described step D, this method further comprises:
Load network resource manager judges whether to exist available bearer network resource, if, execution in step D, otherwise, the failure response of this bearing resource request message sent to ggsn.
3, the method for claim 1 is characterized in that, the user class that sets in advance subscriber equipment is gold card user or domestic consumer;
Carry the user class of subscriber equipment in the request of the described packet data protocol content creating of step B;
Before described step C, this method further comprises: whether the user class in the request of the described packet data protocol content creating of ggsn determining step B is the gold card user class, and whether according to the Packet data service classification that the APN determining step A described request in this request will be transmitted is the high Packet data service type of requirement quality of service, if, execution in step C; Otherwise, the grouped data that will transmit according to normal flow treatment step A described request.
4, method as claimed in claim 3 is characterized in that, the described high Packet data service type of quality of service that requires is conversation class or stream class.
5, method as claimed in claim 3 is characterized in that, the user class of described subscriber equipment is arranged in the attaching position register;
User class in the request of the described packet data protocol content creating of step B is to obtain from attaching position register.
6, method as claimed in claim 5 is characterized in that, the user class of described subscriber equipment is arranged in the Odb-HPLMN-Data reserved field in the user attaching location register;
User class in the request of the described packet data protocol content creating of step B is to obtain in the Odb-HPLMN-Data reserved field from attaching position register.
7, the method for claim 1 is characterized in that, the described type of service that is obtained by APN of step B is carried among the TrafficClass among the QOS Profile IE of packet data protocol content creating request.
8, the method for claim 1 is characterized in that, this method further comprises the process that disconnects the transmitting grouped data business:
F11, subscriber equipment send the packet data protocol content deexcitation request of carrying the packet data network APN that this subscriber equipment will disconnect to service universal grouping wireless business supporting node;
After F12, service universal grouping wireless business supporting node receive step F 11 described requests, send the packet data protocol content removal request of carrying this APN to ggsn;
After F13, ggsn received step F 12 described requests, ggsn sent the bearing resource release message to coupled load network resource manager;
After F14, load network resource manager are received this bearing resource release message, discharge and keep for the steps A described request to want the resource of transmitting grouped data business, to the edge router transmission quality of service resource release command of bearing bed;
After the edge router of F15, bearing bed was received this quality of service resource release command, deletion steps A described request was wanted the route of transmitting grouped data business.
9, the method for claim 1 is characterized in that, this method further comprises the process of upgrading the transmitting grouped data business:
F21, when the band of position of subscriber equipment changes, then the service universal grouping wireless business supporting node in current location zone sends the packet data protocol content update request carry the packet data network APN that this subscriber equipment will insert to ggsn;
After F22, ggsn receive step F 21 described requests, ggsn sends to coupled load network resource manager and discharges the old bearing resource message of this subscriber equipment, sends the bearing resource message between this subscriber equipment current location zone of request and the packet network again;
After F23, load network resource manager are received this bearing resource release message, discharge the old bearer network resource of this subscriber equipment, the current location zone of subscriber equipment and the bearing resource between the packet network are set;
The Packet data service that F24, bearing bed will transmit according to the bearing resource transmitting step A described request that step F 23 is provided with.
10, the method for claim 1 is characterized in that, described different APN is arranged on attaching position register or/and in the subscriber identification module in the subscriber equipment.
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| CN101228764B (en) * | 2005-11-01 | 2011-03-02 | 中兴通讯股份有限公司 | Multi business IP bearing system with service quality assurance and implementing method thereof |
| CN100493229C (en) * | 2005-12-01 | 2009-05-27 | 华为技术有限公司 | Applied business loading set-up method and subscriber defining unit |
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