CN101674223B - Gateway equipment load processing method, network equipment and network system - Google Patents
Gateway equipment load processing method, network equipment and network system Download PDFInfo
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- CN101674223B CN101674223B CN2008101608377A CN200810160837A CN101674223B CN 101674223 B CN101674223 B CN 101674223B CN 2008101608377 A CN2008101608377 A CN 2008101608377A CN 200810160837 A CN200810160837 A CN 200810160837A CN 101674223 B CN101674223 B CN 101674223B
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Abstract
The invention discloses a gateway equipment load processing method, network equipment and a network system. The gateway equipment load processing method comprises the following steps: when source gateway equipment needs to unload user equipment, selecting target gateway equipment capable of serving the user equipment; and transferring the user equipment from the source gateway equipment to the target gateway equipment. When the source gateway equipment needs to unload the user equipment, the embodiment of the invention can transfer the user equipment to the target gateway equipment capable of serving the user equipment, and avoid the problems of service interruption caused by separating the user equipment, and extremely high overhead caused by the reattachment of the user equipment.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of gateway equipment load processing method, the network equipment and network system.
Background technology
In order to adapt to the development of mobile communications network; Long Term Evolution (Long Term Evolution is called for short LTE)/System Architecture Evolution (System Architecture Evolution, SAE) project appearred; Network element in the SAE system architecture comprises evolution base station (Evolved NodeB; Abbreviation eNodeB), mobile management entity (Mobility Management Entity is called for short MME), gateway (Serving Gateway is called for short SGW), packet data gateway (Packet Data Network Gateway; Abbreviation PGW), home subscriber server (Home Subscriber Server is called for short HSS).ENodeB is that the access of subscriber equipment (User Equipment is called for short UE) provides Radio Resource; MME is the chain of command functional entity, and all non-access layer informations between processing and the UE for example carry out authentication, paging etc. to UE; SGW is the user plane functions entity, is responsible for the user face data route and handles, and the SAE bearer context of management and storage UE, SGW are that the service area that UE provides is one or more tracking area (Tracking Area is called for short TA); PGW is responsible for inserting Packet Data Network's (Packet Data Network is called for short PDN) that service is provided for the user; HSS is used for storing user subscription data.
In the prior art, when SGW need unload UE, when for example SGW need upgrade or safeguard, network side meeting separates UE also indicated UE to adhere to again.The inventor finds can cause after prior art exists following problem: UE separated at least the unexpected interruption of ongoing business in realizing process of the present invention; A large amount of UE adhere to again and cause the burden of eating dishes without rice or wine, even possibly cause network paralysis.
Summary of the invention
The present invention provides a kind of gateway equipment load processing method, the network equipment and network system, and when SGW need unload UE, network side is separates UE not.
The embodiment of the invention provides a kind of gateway equipment load processing method, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Said load migration indication information is sent to evolution base station;
Receive the handoff request that said evolution base station sends;
After receiving said handoff request, selection can be the intended gateway equipment of subscriber equipment service.
The embodiment of the invention provides a kind of gateway equipment load processing method, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Said load migration indication information is sent to subscriber equipment through evolution base station;
Receive the tracing section updating request that said subscriber equipment sends through evolution base station;
After receiving said tracing section updating request, selection can be the intended gateway equipment of subscriber equipment service.
The embodiment of the invention provides a kind of gateway equipment load processing method, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Selection can be the intended gateway equipment of subscriber equipment service;
Saidly said subscriber equipment moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
The embodiment of the invention provides a kind of gateway equipment load processing method, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Selection can be the intended gateway equipment of subscriber equipment service;
Saidly said subscriber equipment moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Upgrade the bearer context of the said subscriber equipment in the evolution base station;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
The embodiment of the invention provides a kind of network equipment, comprising:
Select module, be used for when source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Transferring module is used for said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment;
Said selection module specifically is used for behind the load migration indication information that receives said source gateway equipment transmission; Selection can be the intended gateway equipment of subscriber equipment service, and said load migration indication information is used to indicate said source gateway equipment need carry out load migration; Perhaps
Said selection module specifically is used for after receiving said load migration indication information; Said load migration indication information is sent to evolution base station; And after the handoff request that receives said evolution base station transmission, selection can be the intended gateway equipment of subscriber equipment service; Perhaps
Said selection module specifically is used for after receiving said load migration indication information; Said load migration indication information is sent to subscriber equipment through evolution base station; And after receiving the tracing section updating request of said subscriber equipment through said evolution base station transmission, selection can be the intended gateway equipment of subscriber equipment service.
The embodiment of the invention provides a kind of network equipment, comprising:
Select module, be used for when source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Transferring module is used for said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment;
Said transferring module specifically is used to ask said intended gateway to set up bearer context, and said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway; Delete the bearer context of the said subscriber equipment in the said source gateway equipment; Perhaps
Said transferring module specifically is used to ask said intended gateway to set up bearer context, and said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway; Upgrade the bearer context of the said subscriber equipment in the evolution base station; Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
The embodiment of the invention provides a kind of network system, comprises source gateway equipment, mobile management entity, intended gateway equipment and packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for after receiving said load migration indication information, and selection can be the intended gateway equipment of subscriber equipment service, and sends the request of carrying of creating to said intended gateway equipment;
Said intended gateway equipment is used for creating according to the said establishment request of carrying the bearer context of said subscriber equipment, and sends the renewal request of carrying and give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment.
The embodiment of the invention also provides a kind of network system, comprises source gateway equipment, mobile management entity, evolution base station, intended gateway equipment and packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for said load migration indication information is sent to said evolution base station;
Said evolution base station is used for after receiving said load migration indication information, sends handoff request and gives said mobile management entity;
Said mobile management entity also is used for after receiving said handoff request, and selection can be the intended gateway equipment of subscriber equipment service;
Said intended gateway equipment is used for carrying the bearer context of asking to create said subscriber equipment according to creating, and sends to upgrade to carry and ask to give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment;
Said evolution base station also is used to upgrade the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected.
The embodiment of the invention also provides a kind of network system, comprises source gateway equipment, mobile management entity, evolution base station, subscriber equipment, intended gateway equipment, packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for said load migration indication information is sent to said evolution base station;
Said evolution base station is used for said load migration indication information is sent to said subscriber equipment;
Said subscriber equipment is used for after receiving said load migration indication information, sends the tracing section updating request;
Said evolution base station also is used for said tracing section updating request is sent to said mobile management entity;
Said mobile management entity also is used for after receiving said tracing section updating request, and selection can be the intended gateway equipment of subscriber equipment service;
Said intended gateway equipment is connected with said mobile management entity, is used for carrying the bearer context of asking to create said subscriber equipment according to creating, and sends to upgrade to carry and ask to give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected;
Said evolution base station also is used for after said mobile management entity is selected intended gateway equipment, upgrading the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected.
Can know by technique scheme; The embodiment of the invention is when SGW need unload UE in the source; With UE move to can target SGW for UE service on; Realize that UE carries out the transition on another SGW smoothly, rather than the network side separates UE, so can avoid service disconnection that separates UE causes, problem that the expense avoiding UE to adhere to again causing increases.
Description of drawings
Fig. 1 is the schematic flow sheet of gateway equipment load processing method embodiment one of the present invention;
Fig. 2 is the schematic flow sheet of gateway equipment load processing method embodiment two of the present invention;
Fig. 3 is the schematic flow sheet of gateway equipment load processing method embodiment three of the present invention;
Fig. 4 is the schematic flow sheet of gateway equipment load processing method embodiment four of the present invention;
Fig. 5 is the schematic flow sheet of gateway equipment load processing method embodiment five of the present invention;
Fig. 6 is the structural representation of network equipment embodiment of the present invention;
Fig. 7 is the structural representation of network system embodiment one of the present invention;
Fig. 8 is the structural representation of network system embodiment two of the present invention;
Fig. 9 is the structural representation of network system embodiment three of the present invention.
Embodiment
Fig. 1 is the schematic flow sheet of gateway equipment load processing method embodiment one of the present invention, comprising:
Step 11: when SGW need unload UE in the source, MME selected to be the target SGW of UE service that the target SGW among the present invention is the SGW that is different from source SGW.Present embodiment is example with SGW, also can be other gateway device, like the GGSN (Gateway GPRS Support Node is called for short GGSN) in the general packet radio service (General Packet Radio Service is called for short GPRS).SGW needs unloading UE because need upgrading or safeguard to cause.
Step 12:MME is moved to said UE on the said target SGW from said source SGW.Wherein, MME can be when knowing that source SGW need load migration; Select target SGW (specifically referring to following embodiment two, three); Also can trigger SGW load migration flow process and impel MME select target SGW (specifically referring to following embodiment four), also can trigger SGW load migration flow process and impel MME select target SGW (specifically referring to following embodiment five) by UE by eNodeB.
Present embodiment is when SGW need unload UE in the source; Be not that disconnection UE, indication UE adhere to new SGW again; But with UE move to can target SGW for UE service on, therefore, can avoid UE to break off the service disconnection, the UE that cause and adhere to the bigger problem of expense that causes again.
Fig. 2 is the schematic flow sheet of gateway equipment load processing method embodiment two of the present invention, comprising:
Step 201: source SGW sends load migration indication information (Rebalancing Indication) to MME when needs unloading UE.Specifically can for:
When source SGW need safeguard or upgrade; Can cause to carry out load and heavily distribute (load migration); At this moment; Source SGW sends the load migration indication information and gives MME, initiates load migration flow process (the load migration indication information among the present invention can carry the load migration sign or represent through particular message type in message) through load migration indication information indication MME.Can carry international mobile subscriber identity (International Mobile Subscriber Identification number in this load migration indication information; Be called for short IMSI) and SGW address (Serving GW address); The UE sign that IMSI representes to need load heavily to distribute load migration, SGW address are used to notify the address of the source SGW that MME carries out load migration.Perhaps do not carry any UE sign in this load indication information, can not carry the SGW address yet, decide the mode of migration and the UE that is moved, obtain the address information of source SGW from the packet header of packet by MME.
After step 202:MME receives this load migration indication information, select one can for the SGW of UE service as target SGW, and send to this target SGW and to create the request of carrying (Create Bearer Request), to set up user plane bearer.Specifically can for:
MME finds that UE is in the free time during (ECM_IDLE) state; Because this moment, MME and eNodeB did not connect; Can not trigger MME by wireless side or user side and select, therefore, this moment, MME need select a new SGW that can service be provided for UE as target SGW voluntarily.Certainly, if UE is when being in connection (ECM_CONNECTED) state, MME is select target SGW voluntarily also.This establishment is carried in the request can carry Qos information, MME address, MME Tunnel Identifier (MME TEID), PGW address, PGW Tunnel Identifier (PGW TEID).When network side and user side transmission data; Need set up SAE carries; SAE carries a passage that is meant UE → eNodeB → SGW → PGW, and UE and PDN can utilize this channel transfer certain quality of service upstream data and the downlink data of (Quality of Service is called for short QoS).And, can set up dedicated tunnel between UE and the PGW and carry out transfer of data, therefore, know the tunnel of transmission data in order to make UE and PGW and intermediate NE, corresponding tunnel sign (TEID) need be provided.
Step 203: target SGW creates bearer context, and sends more new bearer request (Update Bearer Request) to PGW, to upgrade the bearer context on the PGW after receiving this establishment carrying request.This more can carry information such as target SGW address, target SGW Tunnel Identifier in the new bearer request.
Step 204:PGW returns more new bearer response (Update BearerResponse) to target SGW.
After PGW receives the more new bearer request of target SGW transmission; Upgrade original source SGW beared information with this target SGW beared information that more carries in the new bearer request; Bearer context after obtaining upgrading; Return accordingly more new bearer response to target SGW afterwards, this more can carry Mobile Subscriber International ISDN number (Mobile Station International ISDN number is called for short MSISDN) in the new bearer response; PGW address (PGW address) and PGW Tunnel Identifier information such as (TEID (s)) is to set up the carrying between PGW and the target SGW.
Step 205: target SGW returns to create to MME and carries response (Create BearerResponse).This establishment is carried in the response can carry target SGW address and target SGW Tunnel Identifier, information (SGW address, SGWTEID, SGW Context ID) such as bearer context sign
Step 206:MME sends deleting bearing request (Delete Bearer Request) to source SGW.Can carry Tunnel Identifier information such as (TEID (s)) in this deleting bearing request, go up the bearer context information relevant with UE according to these information deletion sources SGW.
Step 207: source SGW returns deleting bearing response (Delete Bearer Response) to MME, accomplishes with notice MME deleting load-bearing.
Step 208:UE carries out tracing section updating (TAU) flow process through eNodeB and MME.
Because SGW changes, if activated ISR before, then eNodeB will notify UE to initiate TAU flow process deexcitation ISR, and to realize the synchronous of network side and user side, this TAU flow process is a prior art, and concrete realization can be referring to existing implementation.
In the present embodiment, after MME receives the load migration indication information, select target SGW voluntarily; Carry out UE migration flow process afterwards, owing in transition process, do not have Signalling exchange between MME and the eNodeB; Therefore can be applied to the situation that UE is in idle condition; Certainly, when UE was in connection status, MME is select target SGW voluntarily also.
Fig. 3 is the schematic flow sheet of gateway equipment load processing method embodiment three of the present invention, comprising:
Step 301: source SGW sends the load migration indication information to MME when needs unloading UE.
After step 302:MME receives this load migration indication information, select one can for the SGW of UE service as target SGW, and send the request of carrying of creating to this target SGW.
Step 303: target SGW creates bearer context and sends more new bearer request to PGW after receiving this establishment carrying request.
Step 304:PGW returns more new bearer response to target SGW.
Step 305: target SGW returns to create to MME and carries response.
Above-mentioned steps 301-305 flow process is identical with the step 201-205 flow process of embodiment two, and concrete realization can be referring to the corresponding steps of embodiment two.
Step 306: if UE is in connection status, then MME sends bearing modification request (SAE Bearer Modify Request) to eNodeB.Specifically can for:
MME sends the bearing modification request; Carry target SGW address and Tunnel Identifier (TEID), bearing modification indication information such as (SAE Bearer To Be Modified Item IEs) in the bearing modification request, upgrade eNodeB with this and go up SGW relevant information (information such as SGW address and TEID).
Step 307:eNodeB returns bearing modification response (SAE Bearer ModifyResponse) to MME.If the bearing modification failure then can be carried failure tabulation and reason information such as (SAE Bearer Failed to ModifyList and Cause) in the bearing modification response.If eNodeB goes up the bearing modification success, then eNodeB will utilize target SGW information, transmit ascending data smoothly.
Step 308:MME sends more new bearer request (Update BearerRequest) to target SGW, goes up eNodeB relevant informations such as eNodeB address and TEID with fresh target SGW more, is used to send downlink data; If UE is in the ECM_IDLE state,, then need not more new bearer owing to need not connect with eNodeB.
Step 309: target SGW returns more new bearer response to MME.
Above-mentioned steps 306-309 is the flow process different with embodiment two, can be used for upgrading the UE bearer context of eNodeB, makes eNodeB know the relevant information of target SGW; With the up carrying between foundation and the target SGW; Be used for transmit ascending data, simultaneously, the relevant information of the eNodeB among the fresh target SGW more; Downlink bearing with between foundation and the eNodeB is used for transmitting downlink data.
Step 310:MME sends the deleting bearing request to source SGW.
Step 311: source SGW returns the deleting bearing response to MME.
Sequential relationship before and after above-mentioned step 306/307 does not have with step 308/309 and step 310/311.
Step 312:UE carries out the TAU flow process through eNodeB and MME.
Above-mentioned steps 310-312 is identical with step 206-208 flow process among the embodiment two, and concrete realization can be referring to the corresponding steps among the embodiment two.
Compare with embodiment two, present embodiment has not only upgraded the bearer context on the PGW, has also upgraded the bearer context on the eNodeB, data forwarding and up-downgoing transfer of data when realizing the UE connection status.
Fig. 4 is the schematic flow sheet of gateway equipment load processing method embodiment four of the present invention, comprising:
Step 401: when source SGW need unload UE, send the load migration indication information to MME.This step is identical with the step 201 of embodiment two, repeats no more at this.
Step 402:MME sends to eNodeB with this load indication information.
If UE is in connection status, then MME can directly send this load indication information, if UE is in idle condition, then needs the paging UE of MME elder generation, and UE initiates service request (ServiceRequest) flow process and sets up the connection between eNodeB and the MME.This paging and service request flow process are prior aries, can be referring to existing implementation.
Can carry cause value (SGW Rebalancing) in this load indication information, move to new SGW so that eNodeB accomplishes UE according to constant reorientation (the X2-based handover with SGWrelocation) flow process of this cause value initiation eNodeB.
After step 403:eNodeB receives the load indication information, send handoff request (SwitchRequest) to MME.Can carry tracking area identification (TAI) and handover information (like the SGWRebalancing cause value) in this handoff request,, need the new SGW service UE of selecting though do not have change through the position of this cause value notice MME UE.Except SGW Rebalancing cause value information can be notified MME the new SGW of selection, any indication information that can notify the new SGW of selection of MME can, be example with SGW Rebalancing here.
After step 404:MME receives this handoff request, according to SGW Rebalancing cause value reselect one can for the SGW of UE service as target SGW (with source SGW different gateways equipment), and send the request of carrying of creating to this target SGW.Promptly trigger MME select target SGW by eNodeB.
Step 405: target SGW sends more new bearer request to PGW after receiving this establishment carrying request.
Step 406:PGW returns more new bearer response to target SGW.
Step 407: target SGW returns to create to MME and carries response.
Except present embodiment be by eNodeB trigger MME select target SGW, embodiment two is that above-mentioned steps 404-407 is identical with the step 202-205 of embodiment two, repeats no more at this MME triggering selection target SGW.
Step 408:MME sends handoff request to eNodeB and replys (Switch Request Ack).Carry target SGW relevant information (SGW address and TEID etc.) during this handoff request is replied, the information in therefore replying according to handoff request can be upgraded the SGW information on the eNodeB, upgrades the bearer context on the eNodeB.
Step 409:MME sends the deleting bearing request to source SGW.
Specifically can be in step 407, MME receives to create and carries response back startup timer, and behind timer expiry, MME sends the bearer context of this UE on the deleting bearing request deletion source SGW.
Step 410: source SGW returns the deleting bearing response to MME.
Step 411:UE carries out the TAU flow process through eNodeB and MME.
Above-mentioned steps 410-411 is identical with the step 207-208 of embodiment two, repeats no more at this.
Different with embodiment two, three is; MME is by eNodeB triggering selection target SGW in the present embodiment; Be source SGW (generally be SGW need safeguard or upgrade time cause) when needs carry out load migration; This SGW sends message informing MME and initiates the load migration flow process, and MME is according to the state of UE, if UE is idle (ECM_IDLE) state; Then need first paging UE to set up S1 and connect (connection between eNodeB and the MME), indicate eNodeB to initiate the load migration flow process that switching flow is accomplished SGW then.If UE connects (ECM_CONNECTEDED) state, then MME directly indicates eNodeB to initiate the load migration flow process that switching flow is accomplished SGW.
Fig. 5 is the schematic flow sheet of gateway equipment load processing method embodiment five of the present invention, comprising:
Step 501: source SGW sends the load migration indication information to MME in the time can not service being provided for UE.
Step 502:MME sends to eNodeB with this load indication information.
Above-mentioned steps 501-502 is identical with the step 401-402 of embodiment four, repeats no more at this.
Step 503:eNodeB sends to UE with this load indication information.
Can carry cause value in this load indication information, indication UE initiates the load migration that the TAU flow process is accomplished SGW.Can connect release flow through S1 and bring UE this cause value.
After step 504:UE receives the load indication information, send the tracing section updating request to eNodeB.
Can carry original user side tracking area identification (Old GUTI) in this tracing section updating request; The tracking area identification of last visit (last visited TAI); Activate sign (active flag), handover information information such as (like SGW Rebalancing cause values); Though the position through this cause value indication MME UE there is not change, needs newly to select a SGW to come service UE to accomplish the load migration of source SGW.
Step 505:eNodeB sends to MME with this tracing section updating request.
Step 506:UE, MME, HSS accomplish verification process.
After step 507:MME receives this tracing section updating request, the cause value (SGW Rebalancing) that carries according to UE reselect one can for the SGW of UE service as target SGW, and send the request of carrying of creating to this target SGW.
Step 508: target SGW sends more new bearer request to PGW after receiving this establishment carrying request.
Step 509:PGW returns more new bearer response to target SGW.
Step 510: target SGW returns to create to MME and carries response.
Except present embodiment is that to trigger MME select target SGW, embodiment two by UE are MME voluntarily the select target SGW, above-mentioned steps 507-510 is identical with the step 202-205 of embodiment two, repeats no more at this.
Step 511:MME sends bearing modification request (SAE Bearer ModifyRequest) to eNodeB.Specifically can for:
If Active Flag is True; Then MME sends the bearing modification request; Carry target SGW address and Tunnel Identifier (TEID), bearing modification indication information such as (SAE Bearer ToBe Modified Item IEs) in the bearing modification request, upgrade eNodeB with this and go up SGW relevant information (information such as SGW address and TEID).ENodeB sends SAE Bearer Modify Response message and gives MME, carries information such as SAE Bearer Failed to Modify List and Cause cause value in the message.Otherwise this step does not need.
Step 512:eNodeB returns the bearing modification response to MME.If the bearing modification failure then can be carried failure tabulation and reason information such as (SAE Bearer Failed to Modify List and Cause) in the bearing modification response.
If eNodeB goes up the bearing modification success, then will preserve target SGW information, transmit ascending data smoothly on the eNodeB.
Perhaps above-mentioned step 511-512 does not carry out, but MME sends to eNodeB with the relevant information of target SGW in following step 515, to upgrade the bearer context on the eNodeB.
Step 513:MME sends the deleting bearing request to source SGW.
Step 514: source SGW returns the deleting bearing response to MME.
Sequential relationship before and after above-mentioned step 511/512 does not have with step 513/514.
Step 513-514 has deleted the bearer context of the UE on the SGW of source.
Step 515:MME sends tracing section updating to eNodeB and accepts message.Can carry tracking area identification list (TAI list) and new GUTI after the migration in this message
Step 516:eNodeB accepts forwards with this tracing section updating and gives UE.
Sequential relationship before and after above-mentioned step 515/516 does not have with step 513/514.
Step 517:UE sends tracing section updating to eNodeB and accomplishes message.
Step 518:eNodeB accomplishes forwards with this tracing section updating and gives MME.Accomplish TAU.
Different with embodiment two, three, four is that MME triggers MME select target SGW by UE in the present embodiment.The SGW that promptly need carry out load migration sends the load migration indication information and gives MME, and MME sends the load migration indication information then and gives UE, and indication UE initiates the load migration that the TAU flow process is accomplished SGW.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 6 is the structural representation of network equipment embodiment of the present invention, and this network equipment can comprise and select module 61 and transferring module 62 for MME or for realizing the network element of MME corresponding function.When selecting module 61 to be used in the source that SGW need unload UE, selection can be the target SGW of UE service; Transferring module 62 is used for after selecting module 62 to select said target SGW, said UE being moved on the said target SGW from said source SGW.
Wherein, select module 61 specifically to be used for behind the load migration indication information that receives source SGW transmission, selection can be the target SGW of UE service; Perhaps
Further, carry handover information in the said switching message that said selection module 61 receives, perhaps, carry handover information in the said tracing section updating request that said selection module 61 receives, said handover information is used to indicate the switching of carrying out gateway device; Said selection module 61 is used for after receiving the switching message or tracing section updating request of carrying said handover information, select with said source gateway equipment gateway device inequality as intended gateway equipment.
Said transferring module 62 specifically is used for sending establishment to target SGW and carries the bearer context that request indicating target SGW creates said UE, and said target SGW indication PGW upgrades the bearer context of the said UE among the PGW; Perhaps
Said transferring module 62 specifically is used for sending establishment to target SGW and carries the bearer context that request indicating target SGW creates said UE; Said target SGW upgrades the bearer context of the said UE among the PGW; And the bearer context of the said UE in the renewal evolution base station, the bearer context of the said UE among the deletion source SGW.
SGW can not provide when service for UE to present embodiment in the source, is not to break off and being connected of UE, but UE is moved on the target SGW that can serve for UE, can avoid the service disconnection of separates UE good fortune and UE to adhere to the bigger problem of expense that causes again.
Fig. 7 comprises source SGW71, MME72, target SGW73 and PGW74 for the structural representation of network system embodiment one of the present invention.Source SGW71 is used for when needs unloading UE, sending the load migration indication information; MME72 is used for behind the said load migration indication information that receives source SGW transmission, and selection can be the target SGW of UE service, and sends the establishment carrying to this target SGW and ask; Said target SGW73 is used to receive the establishment that MME72 sends and carries the bearer context that said UE is created in the request back, and sends and upgrade the request of carrying and give PGW74; Said PGW74 is used for receiving the bearer context that this more upgrades said UE after the new bearer request, set up with said target SGW73 between carrying be connected.
The gateway device of present embodiment is example with SGW, also can be for other gateway device, like GGSN.
MME select target SGW in the present embodiment, and then realize load migration.
Fig. 8 comprises source SGW81, MME82, eNodeB83, target SGW84 and PGW85 for the structural representation of network system embodiment two of the present invention.Source SGW81 is used for when needs unloading UE, sending the load migration indication information; MME82 is used for the load migration indication information of reception sources SGW81 transmission and sends said load migration indication information; ENodeB83 is used for behind the said load migration indication information that receives the MME82 transmission, sending handoff request; After MME82 received said handoff request, selection can be carried indication information in this handoff request for the target SGW of UE service, was used to indicate MME82 to select a SGW different with source SGW as target SGW; Target SGW84 is used to create the bearer context of said UE, and sends and upgrade the request of carrying to PGW85; PGW85 is used for receiving the bearer context that this more upgrades said UE after the new bearer request, set up with said target SGW84 between carrying be connected; MME82 can also send the bearer context that the said UE among the eNodeB83 is upgraded in the bearing modification request to eNodeB, to set up the carrying between eNodeB and the target SGW; MME82 can also send the bearer context of deleting load-bearing request deletion source the above UE of SGW81 to source SGW81.
The gateway device of present embodiment is example with SGW, also can be for other gateway device, like GGSN.
MME is by eNodeB triggering selection target SGW in the present embodiment, and then realizes load migration.
Fig. 9 comprises source SGW91, MME92, eNodeB93, UE94, target SGW95 and PGW96 for the structural representation of network system embodiment three of the present invention.Source SGW91 is used for when needs unloading UE, sending the load migration indication information; MME92 is used for the load migration indication information of reception sources SGW91 transmission and sends said load migration indication information; ENodeB93 is used to receive MME92 and transmits the load migration indication information that sends and send said load migration indication information; UE94 is used for behind the said load indication information that receives the eNodeB93 transmission, sending the tracing section updating request; Afterwards, should said tracing section updating request send to MME92 through eNodeB93; MME92 also is used for after receiving said tracing section updating request, and selection can be the target SGW of UE service; Target SGW95 is connected with said MME92, is used to create the bearer context of said UE, and sends more new bearer request to PGW96; PGW96 is used for upgrading the bearer context of said UE wherein receiving this renewal request back, set up with said target SGW95 between carrying be connected; MME92 can also further send the request of carrying of revising to eNodeB93 after selecting target SGW, eNodeB93 receives this modification and carries the bearer context that said UE is wherein upgraded in the request back, to set up the carrying between eNodeB and the target SGW; MME92 can also send the bearer context of deleting load-bearing request deletion source the above UE of SGW91 to source SGW91.
The gateway device of present embodiment is example with SGW, also can be for other gateway device, like GGSN.
MME is by UE triggering selection target SGW in the present embodiment, and then realizes load migration.
What should explain at last is: above embodiment is only in order to technical scheme of the present invention to be described but not limit it; Although the present invention has been carried out detailed explanation with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, also can not make amended technical scheme break away from the spirit and the scope of technical scheme of the present invention and these are revised or be equal to replacement.
Claims (18)
1. a gateway equipment load processing method is characterized in that, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Said load migration indication information is sent to evolution base station;
Receive the handoff request that said evolution base station sends;
After receiving said handoff request, selection can be the intended gateway equipment of subscriber equipment service.
2. gateway equipment load processing method according to claim 1 is characterized in that, saidly said load migration indication information is sent to evolution base station is specially:
When said subscriber equipment is in connection status, directly said load migration indication information is sent to evolution base station;
When said subscriber equipment is in idle condition, set up and being connected of said evolution base station through the said subscriber equipment of paging, said load migration indication information is sent to evolution base station.
3. gateway equipment load processing method according to claim 1 is characterized in that, carries indication information in the said handoff request, and said indication information is used for indicating selection and said source gateway equipment different gateways equipment as intended gateway equipment.
4. according to each described method of claim 1-3, it is characterized in that, saidly said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Upgrade the bearer context of the said subscriber equipment in the evolution base station;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
5. a gateway equipment load processing method is characterized in that, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Said load migration indication information is sent to subscriber equipment through evolution base station;
Receive the tracing section updating request that said subscriber equipment sends through evolution base station;
After receiving said tracing section updating request, selection can be the intended gateway equipment of subscriber equipment service.
6. gateway equipment load processing method according to claim 5 is characterized in that, carries indication information in the said tracing section updating request, and said indication information is used for indicating selection and said source gateway equipment different gateways equipment as intended gateway equipment.
7. according to each described method of claim 5-6, it is characterized in that, saidly said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Upgrade the bearer context of the said subscriber equipment in the evolution base station;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
8. a gateway equipment load processing method is characterized in that, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Selection can be the intended gateway equipment of subscriber equipment service;
Saidly said subscriber equipment moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
9. a gateway equipment load processing method is characterized in that, comprising:
When source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Said subscriber equipment is moved on the said intended gateway equipment from said source gateway equipment;
Said when source gateway equipment need unload subscriber equipment, selection can comprise for the intended gateway equipment of subscriber equipment service:
The load migration indication information that the reception sources gateway device sends, said load migration indication information is used to indicate said source gateway equipment need carry out load migration;
Selection can be the intended gateway equipment of subscriber equipment service;
Saidly said subscriber equipment moved to said intended gateway equipment from said source gateway equipment comprise:
Ask said intended gateway equipment to set up bearer context, said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway;
Upgrade the bearer context of the said subscriber equipment in the evolution base station;
Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
10. according to the said gateway equipment load processing method of claim 9; It is characterized in that; Said selection can be specially for the intended gateway equipment of subscriber equipment service: when said subscriber equipment was in idle condition, selection can be the intended gateway equipment of said subscriber equipment service.
11. a network equipment is characterized in that, comprising:
Select module, be used for when source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Transferring module is used for said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment;
Said selection module specifically is used for behind the load migration indication information that receives said source gateway equipment transmission; Selection can be the intended gateway equipment of subscriber equipment service, and said load migration indication information is used to indicate said source gateway equipment need carry out load migration; Perhaps
Said selection module specifically is used for after receiving said load migration indication information; Said load migration indication information is sent to evolution base station; And after the handoff request that receives said evolution base station transmission, selection can be the intended gateway equipment of subscriber equipment service; Perhaps
Said selection module specifically is used for after receiving said load migration indication information; Said load migration indication information is sent to subscriber equipment through evolution base station; And after receiving the tracing section updating request of said subscriber equipment through said evolution base station transmission, selection can be the intended gateway equipment of subscriber equipment service.
12. the network equipment according to claim 11 is characterized in that:
Carry indication information in the said switching message that said selection module receives; Perhaps; Carry indication information in the said tracing section updating request that said selection module receives, said indication information is used for indicating selection and said source gateway equipment different gateways equipment as intended gateway equipment;
Said selection module is used for after receiving the switching message or tracing section updating request of carrying said indication information, select with said source gateway equipment gateway device inequality as intended gateway equipment.
13. a network equipment is characterized in that, comprising:
Select module, be used for when source gateway equipment need unload subscriber equipment, selection can be the intended gateway equipment of subscriber equipment service;
Transferring module is used for said subscriber equipment is moved to said intended gateway equipment from said source gateway equipment;
Said transferring module specifically is used to ask said intended gateway to set up bearer context, and said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway; Delete the bearer context of the said subscriber equipment in the said source gateway equipment; Perhaps
Said transferring module specifically is used to ask said intended gateway to set up bearer context, and said intended gateway equipment is according to the bearer context of the said subscriber equipment in the newly-built bearer context update packet data gateway; Upgrade the bearer context of the said subscriber equipment in the evolution base station; Delete the bearer context of the said subscriber equipment in the said source gateway equipment.
14. a network system is characterized in that:
Comprise source gateway equipment, mobile management entity, intended gateway equipment and packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for after receiving said load migration indication information, and selection can be the intended gateway equipment of subscriber equipment service, and sends the request of carrying of creating to said intended gateway equipment;
Said intended gateway equipment is used for creating according to the said establishment request of carrying the bearer context of said subscriber equipment, and sends the renewal request of carrying and give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment.
15. a network system is characterized in that:
Comprise source gateway equipment, mobile management entity, evolution base station, intended gateway equipment and packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for said load migration indication information is sent to said evolution base station;
Said evolution base station is used for after receiving said load migration indication information, sends handoff request and gives said mobile management entity;
Said mobile management entity also is used for after receiving said handoff request, and selection can be the intended gateway equipment of subscriber equipment service;
Said intended gateway equipment is used for carrying the bearer context of asking to create said subscriber equipment according to creating, and sends to upgrade to carry and ask to give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment;
Said evolution base station also is used to upgrade the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected.
16. network system according to claim 15 is characterized in that:
Carry indication information in the handoff request that said evolution base station sends, said indication information is used for indicating selection and said source gateway equipment different gateways equipment as intended gateway equipment;
Said mobile management entity specifically is used for after receiving the handoff request of carrying said indication information, select with said source gateway equipment gateway device inequality as the destination service gateway.
17. a network system is characterized in that:
Comprise source gateway equipment, mobile management entity, evolution base station, subscriber equipment, intended gateway equipment, packet data gateway;
Said source gateway equipment is used for when needs unloading subscriber equipment, sending the load migration indication information;
Said mobile management entity is used for said load migration indication information is sent to said evolution base station;
Said evolution base station is used for said load migration indication information is sent to said subscriber equipment;
Said subscriber equipment is used for after receiving said load migration indication information, sends the tracing section updating request;
Said evolution base station also is used for said tracing section updating request is sent to said mobile management entity;
Said mobile management entity also is used for after receiving said tracing section updating request, and selection can be the intended gateway equipment of subscriber equipment service;
Said intended gateway equipment is connected with said mobile management entity, is used for carrying the bearer context of asking to create said subscriber equipment according to creating, and sends to upgrade to carry and ask to give said packet data gateway;
Said packet data gateway is used for after receiving said more new bearer request, upgrading the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected;
Said evolution base station also is used for after said mobile management entity is selected intended gateway equipment, upgrading the bearer context of said subscriber equipment, sets up to carry with said intended gateway equipment to be connected.
18. network system according to claim 17 is characterized in that:
Carry indication information in the tracing section updating request that said subscriber equipment sends, said indication information is used for indicating selection and said source gateway equipment different gateways equipment as intended gateway equipment;
Said mobile management entity specifically is used for after receiving the tracing section updating request of carrying said indication information, select with said source gateway equipment gateway device inequality as intended gateway equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101608377A CN101674223B (en) | 2008-09-13 | 2008-09-13 | Gateway equipment load processing method, network equipment and network system |
| PCT/CN2009/073727 WO2010028580A1 (en) | 2008-09-13 | 2009-09-03 | Load processing method of gateway equipment, network equipment and network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101608377A CN101674223B (en) | 2008-09-13 | 2008-09-13 | Gateway equipment load processing method, network equipment and network system |
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| CN101674223A CN101674223A (en) | 2010-03-17 |
| CN101674223B true CN101674223B (en) | 2012-07-04 |
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| CN2008101608377A Active CN101674223B (en) | 2008-09-13 | 2008-09-13 | Gateway equipment load processing method, network equipment and network system |
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| WO (1) | WO2010028580A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8848516B2 (en) * | 2010-09-15 | 2014-09-30 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading |
| EP2622908B1 (en) | 2010-09-27 | 2016-12-28 | Telefonaktiebolaget LM Ericsson (publ) | Relocating a serving gateway associated to a user equipment |
| CN102480712B (en) * | 2010-11-24 | 2015-06-03 | 中兴通讯股份有限公司 | Switching method and system in data flow-distributing system |
| CN102405658B (en) * | 2010-12-24 | 2013-12-04 | 华为技术有限公司 | Method and device for reallocating packet data gateway |
| CN102769931B (en) * | 2011-05-04 | 2017-08-25 | 中兴通讯股份有限公司 | Via node discharges the method and via node, terminal of terminal |
| CN103139023A (en) * | 2011-11-25 | 2013-06-05 | 华为技术有限公司 | User access control method, network equipment and system |
| CN104782173B (en) * | 2013-11-08 | 2018-11-06 | 华为技术有限公司 | Forwarding surface moving method, controller and gateway |
| CN106604331A (en) * | 2015-10-16 | 2017-04-26 | 中兴通讯股份有限公司 | Base station, mobile management entity, off-loading method and system |
| CN116963180A (en) | 2017-04-25 | 2023-10-27 | 华为技术有限公司 | Load migration method, device and system |
| CN110061885B (en) * | 2019-04-29 | 2022-03-29 | 新华三技术有限公司 | Gateway equipment unloading method and device, gateway equipment and medium |
| CN114826823B (en) * | 2022-03-25 | 2024-02-27 | 阿里云计算有限公司 | Virtual network segmentation method, device and system |
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| CN1925440A (en) * | 2005-09-01 | 2007-03-07 | 华为技术有限公司 | Transfer method |
| CN101047982A (en) * | 2006-04-02 | 2007-10-03 | 华为技术有限公司 | Method of gateway transport |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1925440A (en) * | 2005-09-01 | 2007-03-07 | 华为技术有限公司 | Transfer method |
| CN101047982A (en) * | 2006-04-02 | 2007-10-03 | 华为技术有限公司 | Method of gateway transport |
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| CN101674223A (en) | 2010-03-17 |
| WO2010028580A1 (en) | 2010-03-18 |
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