CN101494848B

CN101494848B - Method, system and equipment for hanging-up and recovering business

Info

Publication number: CN101494848B
Application number: CN2008100070210A
Authority: CN
Inventors: 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-01-25
Filing date: 2008-01-25
Publication date: 2013-08-07
Anticipated expiration: 2028-01-25
Also published as: CN101494848A; WO2009100664A1

Abstract

The invention discloses a service suspension method, which comprises: when an user equipment stationed in a group field needs to initiate a circuit field service, the core net equipment of the group field reserves the group network resource of the user equipment according to received indication; when the user equipment is performing a service, saves the descending service data and/or stopping sending the up-link data of the user equipment, and converts to circuit field communication network to perform circuit field service; or, when the user equipment is not performing service, then converts to circuit field communication network to perform circuit field service. The invention further discloses a corresponding treatment system for returning the circuit exchange field service to the conventional network, a user equipment, an evolvement base station, a mobility management entity, a service gateway and a group data network. Applying the invention can reduce the time delay before CS service while processing CS fallback, and further avoids resource waste.

Description

The professional method of hanging up, method, system and the equipment of business recovery

Technical field

The present invention relates to communication technical field, relate in particular to a kind of professional method of hanging up, method, system and the equipment of business recovery.

Background technology

GPRS/universal mobile telecommunications system (GPRS/UMTS, General Packet Radio Service/Universal Mobile Telecommunications System) is third generation partner plan (3GPP, The3rd Generation Partnership Project) a kind of mobile communications network of tissue definition, it comprises Radio Access Network (Radio Access Network, RAN) and core network (Core Network, CN) two parts.Wherein, CN from be divided in logic circuit commutative field (Circuit Switched Domain, CS) and packet-switched domain (Packet Switched Domain, PS).The main processed voice business in CS territory, Packet data service is mainly handled in the PS territory.

In order to adapt to the development of wireless broad band technology, 3GPP has formulated Long Term Evolution plan (LTE, Long Term Evolution), at the given a definition framework of new mobile communications network of the guidance of LTE, this framework is compared with present GPRS/UMTS and has only been kept packet-switched domain, therefore this framework can be called the grouping system (EPS, evolved packet system) of evolution.

Because EPS has only kept packet-switched domain, so can not carry out the CS business in the evolution system.Yet a lot of business of the operator of operation GPRS/UMTS network all need to finish by circuit domain, for example CS speech business and a lot of value-added services etc.In order to protect investment, operator wishes still can provide CS business by the EPS network at the evolution initial stage of network, therefore proposed a kind of by the method for EPS network connection to the CS domain core net, the network architecture schematic diagram of this method as shown in Figure 1:

As subscriber equipment (UE, User Equipment) 101 under the GPRS/UMTS network coverage, can be connected to the CS core net by base station controller (BSC, Base Station the Controller)/radio network controller (RNC, Radio Network Controller) 102 of Access Network; When UE under the EPS network coverage, can be connected to the EPS network by the evolution base station in the EPS network (eNodeB) 105.Mobile management entity (MME in the EPS network, Mobility Management Entity) 104 (MSC of mobile switching centre that are connected to the traditional C core net, Mobile Switch Center) on 103, gateway (S-GW, Serving Gateway) 106 link to each other with MME104, eNodeB105, grouped data network gateway (P-GW, Packet Data Network Gateway) 107.

When UE101 is call initiator, prepare to initiate the CS beginning and exhale (MO, Mobile Originating) business, when for example initiating the calling of a speech business, UE need forward traditional GPRS/UMTS network earlier to, select the residential quarter of a second generation/third generation (2G/3G, Second Generation/Third Generation) mobile communications network to insert, and then carry out the MO business.When UE101 is receipt of call side, MSC103 receives and exhales (MT an end, Mobile Terminated) business, when for example receiving the calling of a speech business, MSC103 sends beep-page message to MME104, MME103 carries out paging by the EPS network to UE101, after UE101 receives this beep-page message, need forward traditional GPRS/UMTS network earlier to, select the residential quarter of a 2G/3G to insert, and then finish the subsequent treatment of this MT business, this processing method can be called the processing method that the CS business is returned legacy network (CS fallback).

Professional and the MT business of MO is two aspects of a CS business, for the side of making a call of this CS business, its execution be the MO processing; For the receipt of call side of this CS business, its execution be that MT handles.

In the processing of CS fallback, sometimes UE101 is when initiating or receive that CS is professional, may just carry out the PS business at the EPS network, communication system is before carrying out the CS business, in the prior art in order to guarantee the continuity of PS business, need earlier the PS business in the EPS network to be switched to the PS territory of 2G/3G network, and then carry out the CS business.

When UE101 as receipt of call side, in the time of need carrying out the MT business, after MSC103 sends beep-page message to MME104, MME104 sends beep-page message by the EPS network to UE101, UE101 or eNodeB105 receive and carry out switching flow behind this beep-page message earlier, and the current ongoing EPS business of UE101 is switched to PS territory in the GPRS/UMTS network, after UE is linked in the residential quarter of 2G/3G again, CS domain core net to GPRS/UMTS returns page response, and then carries out follow-up MT business.

When UE101 as call initiator, when preparing to initiate the MO business, the UE101 that quarters in the EPS network sends the CS call request message to eNodeB105, eNodeB105 can initiate measurement flow process initiatively after receiving this message, for UE101 seeks suitable serving BS in the purpose 2G/3G network, send handover request message to MME104 then, carry out the PS territory that switching flow switches to existing P S business 2G/3G.UE101 initiates the MO business at the 2G/3G network more then.

In research and practice process to prior art, the inventor finds that there is following problem in prior art:

Because needing to carry out PS before carrying out the CS business switches, the process that PS switches has comprised again switching to be prepared and handover execution stage, the time that needs is longer, the time delay that causes is bigger, therefore increased the connection duration of CS business, can bring relatively poor user to experience, and carry out some particular service at needs, for example carry out urgent call 110,112 o'clock, need make a call at once, connect the CS business fast as far as possible, if the PS business of well afoot is arranged this moment, also must earlier the PS business be switched to the PS territory in the GPRS/UMTS network, switch the time delay that causes, can not satisfy the ageing demand of these particular services.

Further, owing to can not support CS and PS business simultaneously in the existing 2G system, namely when carrying out the CS business, UE must suspend the PS business.Even so this moment the PS business in the EPS network is switched in the PS territory of 2G system, but this PS business can not use when the CS business is carried out, this moment the PS business switching without any meaning, thereby caused the waste of resource.

Summary of the invention

The technical problem that the embodiment of the invention will solve provides a kind of professional method of hanging up, method, system and the equipment of business recovery, carries out carrying out when CS fallback handles time delay before the CS business with minimizing, further can avoid the wasting of resources.

For solving the problems of the technologies described above the embodiment of the invention on the one hand, a kind of professional method of hanging up is provided, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, comprise: when when the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity receives the business hang-up request that subscriber equipment sends; Described first mobile management entity is hung up request according to the business that receives, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication; When described subscriber equipment is current when carrying out business, then buffer memory sends to the downlink service data of described subscriber equipment and/or stops sending upstream data, and is transformed into the circuit domain communication network and carries out circuit domain business; Perhaps when described subscriber equipment is current when not carrying out business, then be transformed into the circuit domain communication network and carry out circuit domain business.

On the other hand, a kind of professional method of hanging up is provided, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, comprise: when when the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity is after receiving beep-page message, send the callee function Indication message to described subscriber equipment, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication; Or, when when the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity is after receiving beep-page message, send the callee function Indication message to described subscriber equipment, after described subscriber equipment is received the callee function Indication message, send the professional request of hanging up to described first mobile management entity, described first mobile management entity is hung up request according to the business that receives, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication; When described subscriber equipment is current when carrying out business, then buffer memory sends to the downlink service data of described subscriber equipment and/or stops sending upstream data, and is transformed into the circuit domain communication network and carries out circuit domain business; Perhaps when described subscriber equipment is current when not carrying out business, then be transformed into the circuit domain communication network and carry out circuit domain business.

On the other hand, a kind of method of business recovery is provided, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, described method comprises: finish when subscriber equipment carries out circuit domain business in circuit-domain network, when inserting packet field network again, judge whether described subscriber equipment has packet switch domain service to be suspended, if have, then described subscriber equipment sends in order to recover the message of packet switch domain service to first mobile management entity; Described first mobile management entity receive described in order to the message of recovering described packet switch domain service after, send the renewal bearing request message that indication recovers to first gateway; Set up radio bearer, obtain downlink tunnel information, and send to described first gateway; Described first gateway after receiving the renewal bearing request message that described indication recovers, the indication of the renewal bearing request message of recovering according to described indication, Open valve; Send the renewal bearing response message to described first mobile management entity; Obtain and upgrade downlink tunnel information, and send the downlink data packet of buffer memory according to described downlink tunnel information.

On the other hand, a kind of subscriber equipment is provided, described subscriber equipment comprises: the professional request unit of hanging up, be used for when preparing to carry out circuit switched domain service, send the professional request of hanging up to mobile management entity, to keep the packet field network resource of described subscriber equipment, the described packet switch domain service downlink data of buffer memory; First access unit is used for stopping current ongoing packet switch domain service, is transformed into circuit-domain network; Second access unit is used for after described circuit switched domain service finishes, and selects Long Term Evolution plan residential quarter, inserts packet field network again; First transmitting element is used for sending message to described mobile management entity, to recover grouping commutative field service; The unit is set up in first carrying, is used for setting up radio bearer.

On the other hand, a kind of mobile management entity is provided, described mobile management entity comprises: the first resource stick unit is used for keeping the packet field network resource of described subscriber equipment according to the indication of receiving when the subscriber equipment that quarters at packet domain need be initiated circuit domain business; The first new bearer request unit more is used for sending the renewal bearing request message that indication is hung up to gateway, and the grouping commutative field service that described subscriber equipment is being carried out is hung up in request; First receiving element is used for receiving the more new bearer response that described gateway returns; First judging unit, the business that is used for sending according to the subscriber equipment that receives is hung up request, judgement quarters at the subscriber equipment of packet domain need initiate circuit domain business, or be used for after sending the callee function Indication message to described subscriber equipment, judgement quarters at the subscriber equipment of packet domain need initiate circuit domain business.

On the other hand, provide a kind of mobile management entity, described mobile management entity comprises: the second tracing section updating requesting processing is used for receiving the tracing section updating request message that subscriber equipment sends; The 3rd context unit is used for sending context request message to old mobile management entity; Receive the context response information that described old mobile management entity sends, obtain the context of the grouping commutative field service information that comprises hang-up that described subscriber equipment records in described old mobile management entity; The 3rd business recovery unit is used for sending the request that is used for recovering business to gateway, to recover the grouping commutative field service of described hang-up; Second place updating block is used for initiating more new technological process of position with home subscriber server, obtains the subscription data of described subscriber equipment, and to described home subscriber server registration; The second downlink tunnel information process unit is used for sending tracing section updating to described subscriber equipment and accepts message; The tracing section updating that receives described subscriber equipment transmission is finished message, radio bearer between foundation and the described subscriber equipment, finish from described tracing section updating and to obtain downlink tunnel information the message, the renewal bearing request message that carries described downlink tunnel information is sent to described gateway.

On the other hand, provide a kind of gateway, described gateway comprises: the 3rd receiving element, for the renewal bearing request message of the indication hang-up that receives the mobile management entity transmission; Hang up processing unit, be used for the indication according to the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, valve-off records described hang-up indication; Buffer unit is used for when ongoing packet switch domain service comprises downlink data the described packet switch domain service downlink data of buffer memory; The 3rd transmits data cell, be used for receiving the data that evolution base station is transmitted, and the described data of buffer memory; Recover processing unit, be used for the renewal bearing request message of the indication recovery of the described mobile management entity transmission of reception; The indication of the renewal bearing request message of recovering according to described indication, Open valve; Send the renewal bearing response message to described mobile management entity; Obtain and upgrade downlink tunnel information, send the downlink data packet of buffer memory.

On the other hand, provide a kind of gateway, described gateway comprises: the 3rd change process unit is used for receiving the foundation carrying request that described mobile management entity sends; Send the renewal bearing request message that is used for recovering business to grouped data network gateway; Receive the renewal bearing response message that described grouped data network gateway sends; The second downlink tunnel processing unit is used for setting up bearing response message to described mobile management entity transmission; Receive the renewal bearing request message that carries described downlink tunnel information that described mobile management entity sends, obtain and upgrade described downlink tunnel information, send the downlink data packet of buffer memory.

On the other hand, provide a kind of grouped data network gateway, described grouped data network gateway comprises: operating unit is used for receiving the more new bearer request that gateway sends; Indication according to described more new bearer request is operated valve; Second flow process is initiated the unit, is used for initiating strategy and charging control rule interaction flow to "Policy and Charging Rules Function; More the new bearer response unit is used for sending more new bearer response to described gateway.

As can be seen from the above technical solutions, because UE is when carrying out the CS business, only need earlier with the professional hang-up of PS, can carry out the CS business, not need earlier the PS business to be switched to the PS territory in the GPRS/UMTS network, wait UE to finish to recover again after the CS business PS business that is suspended, thereby simplified the handling process of CS business among the CSfallback, the time delay of having avoided handoff procedure to cause has improved efficient, can satisfy the demand of particular service to the time.

Further, owing to do not need the PS business is switched to PS territory in the GPRS/UMTS network, also just avoided because the 2G network can not be supported CS and PS business, the wasting of resources that causes and possible failure simultaneously.

Description of drawings

EPS network and the CS domain core net network architecture schematic diagram when Fig. 1 handles for carrying out CS fallback;

The method embodiment one Signalling exchange figure that Fig. 2 hangs up for the business that the embodiment of the invention provides;

The method embodiment two Signalling exchange figure that Fig. 3 hangs up for the business that the embodiment of the invention provides;

The method embodiment three Signalling exchange figure that Fig. 4 hangs up for the business that the embodiment of the invention provides;

The method embodiment four Signalling exchange figure that Fig. 5 hangs up for the business that the embodiment of the invention provides;

The method embodiment five Signalling exchange figure that Fig. 6 hangs up for the business that the embodiment of the invention provides;

The method embodiment six Signalling exchange figure that Fig. 7 hangs up for the business that the embodiment of the invention provides;

The method embodiment seven Signalling exchange figure that Fig. 8 hangs up for the business that the embodiment of the invention provides.

Embodiment

The embodiment of the invention provides a kind of professional method of hanging up, method, system and the equipment of business recovery, before carrying out the CS business, hang up (Suspend) PS business earlier, can reduce and carry out carrying out the preceding time delay of CS business when CS fallback handles, avoid the wasting of resources.

CS business among the present invention is a general designation of the CS business that can carry out in the GPRS/UMTS network of UE, for example traditional CS speech business is exactly a typical case of CS business, and other as short message service (SMS, Short Message Service), location service (LCS, Location Service) and Unstructured Supplementary Service Data (USSD, Unstructured Supplementary Service Data) etc. all belong to the CS business, this is not limited in the present invention.

When carrying out CS fallback processing, UE may be the side of making a call, and carries out the MO business; Also may be receipt of call side, carry out the MT business; When carrying out the MO business, the method embodiment one that the business that the embodiment of the invention provides is hung up is following described:

When UE prepares to initiate the CS business, require the EPS network to keep current UE in the carrying of EPS network, if carrying out the PS business then EPS network-caching downlink data, UE stops to send upstream data.After UE sends professional hang-up request, just can forward the 2G/3G network to, select a proper cell to carry out the CS business; After also can working as the response that UE receives that network side sends, forward the 2G/3G network again to and carry out the CS business; Network also can be refused this hang-up request, and this moment, UE need wait until that the PS business switches to destination and carries out the CS business afterwards again.At this moment, the method embodiment one Signalling exchange figure that hangs up of the business that provides of the embodiment of the invention is as shown in Figure 2:

Step 201, when UE prepare to initiate CS when professional, UE sends the professional request message of hanging up to the MME of EPS network.

This business is hung up and can also be carried the CS type of service that the UE preparation is carried out in the request message, and as normal audio call, the decision-making of subsequent treatment is carried out in urgent call etc. for EPS.

Usually UE has Idle state and activated state two states, can carry out business just have only when UE is in activated state, and after service ending, in order to save the expense on interface-free resources and the UE, UE can forward Idle state to.Therefore when the user need carry out business, if UE is in Idle state, then UE need forward activated state to from Idle state, and this moment, UE can set up the change that signaling connects to come completion status by sending service request information to MME.So if when UE prepares to initiate the CS business, UE is in Idle state, then should can use service request information to realize by business hang-up request message, namely in service request information, carry the professional indication of being correlated with of hanging up; Also can UE send service request information to network side earlier, etc. signaling connect set up finish after, UE sends the professional request message of hanging up to MME again.If current UE is in activated state, then UE can directly send this business to MME and hang up request message.Described professional hang-up request message can be a single message, or one is carried the professional existing message of hanging up indication.

After UE sends this business hang-up request message, can select a suitable 2G/3G residential quarter immediately, insert the 2G/3G network, carry out the CS business, for example current UE prepares to carry out urgent call; After can waiting for that also network side responds this request, select a suitable 2G/3G residential quarter again, insert the 2G/3G network, carry out the CS business, what for example current UE was prepared to carry out is a normal call, can tolerate some time delays.The follow-up handling process at the 2G/3G network of UE is existing C S operation flow, does not repeat them here.

Further, can determine whether needs are carried out the hang-up processing according to carrying out network condition and carrier policy, for example: can will carry out the 2G/3G mobile network's of CS business ability according to UE, and determine whether hanging up the PS business.More common situation is when purpose 2G/3G mobile network can support CS and PS business simultaneously, switch the PS business, to carry out PS business and CS business simultaneously, when purpose 2G/3G mobile network can not support CS and PS business simultaneously, hang up the PS business, also namely enter this flow process; And/or determine to carry out PS by carrier policy and professionally switch, or hang up the PS business, determine to hang up PS when professional at carrier policy, enter this flow process, hang up the PS business.

Step 202, MME send the renewal bearing request message to S-GW after receiving this hang-up request message.

After MME receives this business message on hold, can in the context of this UE, record this business and hang up indication, and initiate resource reservation process.

This renewal bearing request message can carry " the professional hang-up " indication or valve-off (Gate) indication, and indication S-GW empties the downlink tunnel information of the carrying of this UE correspondence, and data cached when UE has the downlink business of carrying out.Can also carry downlink tunnel information such as the Tunnel End Point Identifier (TEID, Tunnel Endpoint Identifier) of particular value and Internet protocol (IP, Internet Protocol) address in this message, S-GW directly upgrades according to this downlink tunnel information.

Stop uplink service when having up PS professional, data cached when having descending PS professional, all can regard the behavior that the PS business is operated as.

After step 203, S-GW receive this message, according to " the professional hang-up " indication of carrying in the renewal bearing request message or the downlink tunnel information of valve-off indication or particular value, the downlink tunnel information of the carrying of this UE correspondence is emptied, and record should " the professional hang-up " indication in the context of the carrying of this UE or UE.

After the downlink tunnel information of the carrying of this UE correspondence is cleared, when UE had the downlink business of carrying out, if receive new downlink data packet this moment, S-GW can be according to " the professional hang-up " indication or the valve-off indication of record, this downlink data packet of buffer memory, rather than to MME transmission paging request.

Step 204, S-GW are to "Policy and Charging Rules Function (PCRF, Policy Charging Rules Function) initiates strategy and the control (PCC that charges, Policy Charging Control) regular interaction flow, S-GW will be notified to PCRF from " the professional hang-up " indication or the valve-off indication that MME receives, PCRF indicates according to this, the execution valve-off is handled, and sends the message that valve-off is indicated to S-GW, and S-GW closes the valve of carrying according to the indication of PCRF.

This step is carried out when S-GW has strategy and charge execution function (PCEF, Policy Charging Enforcement Function).

Step 205, S-GW send to P-GW and upgrade bearing request message, and this message is carried " the professional hang-up " indication or valve-off indication.

After P-GW receives this message, record in the context of the carrying of this UE or UE " the professional hang-up " indication information.

Step 206, P-GW will be notified to PCRF from " the professional hang-up " indication or the valve-off indication that S-GW receives, PCRF indicates according to this, the execution valve-off is handled, and sends the message that valve-off is indicated to P-GW, and P-GW closes the valve of carrying according to the indication of PCRF.

Step 207, P-GW send to S-GW and upgrade bearing response message.

Step 208, S-GW send to MME and upgrade bearing response message.

Because the packet of this UE of may having gone back buffer memory among the eNodeB, carry out pending operation for fear of UE and cause loss of data, therefore in this message, can carry the forwarding tunnel information that offers eNodeB, carry out buffer memory among the S-GW thereby data in buffer among the eNodeB is forwarded to.Described forwarding tunnel information can be distributed separately by S-GW, also can utilize existing S-GW to offer the downlink tunnel information of P-GW.

Step 209, MME send professional suspending command to eNodeB, the data of indication eNodeB forwarding cache.

Can carry the forwarding tunnel information that S-GW provides in this business suspending command.

MME just can execution in step 209 after the business of receiving step 201 is hung up request, and step 209 and subsequent step thereof and step 202 to 208 do not have the sequencing relation, can successively carry out, and can carry out simultaneously yet, and wherein more excellent scheme is the priority execution.

Step 210, MME send the professional response message of hanging up to UE.

This step is optional step, when MME sends professional suspending command to eNodeB, also can send the professional response message of hanging up to UE.

Above mention when step 201 is described, UE can select a suitable 2G/3G residential quarter immediately after sending this business hang-up request message, insert the 2G/3G network, carries out the CS business; After can waiting for that also network side responds this request, select a suitable 2G/3G residential quarter again, insert the 2G/3G network, carry out the CS business.UE can forward the 2G/3G residential quarter to again after receiving this business hang-up response message, carry out the CS business.

Further, MME can determine whether that needs send the professional response message of hanging up to UE according to the CS type of service of receiving in the step 201.For example, if current UE need be carried out urgent call, then can forward 2G/3G after the UE execution of step 201 immediately to and carry out the CS business, at this moment, MME does not need to send the professional response message of hanging up to UE; And if UE need carry out a calling normally, then MME can send the professional response message of hanging up to UE, and UE forwards 2G/3G execution CS business to after receiving this response message again.

Further, MME can also determine whether needs are carried out pending operation according to network condition and/or carrier policy, if do not need to carry out pending operation, then MME receives after the message of step 201 directly execution in step 210, and does not carry out other steps.Indication UE network side does not carry out pending operation in the message of step 210, and UE does not forward 2G/3G immediately to and carries out the CS business after receiving that the business that contains described judged result is hung up response message, but waits for the further indication of network.

After step 211, eNodeB receive this business suspending command, transmit data to S-GW.

After eNodeB receives this business suspending command, according to the forwarding tunnel information that provides in the message, data in buffer in this UE carrying is forwarded among the S-GW.

Step 212, S-GW buffer memory are transmitted data.

Step 211,212 is option, if the bearer context of this UE not on the current eNodeB for example then can not carry out step 211,212.

After step 213, eNodeB finish the data forwarding, send S1 to MME and connect the release request message.

Step 214, MME receive after the connection of eNodeB discharges request message and send S1 connection release command to eNodeB.

If the Radio Resource control (RRC, Radio Resource Control) of step 215 this UE correspondence this moment connects also exist, then initiate the RRC connection and discharge handling process.

If UE directly changes the 2G/3G network over to after initiating to hang up the PS operation flow, the EPS network side may detect UE and leave the EPS network, connects the release handling process and directly initiate RRC, and this moment, step 215 just might be carried out in advance.

Step 211 described above might become to the order of step 215, because UE forwards 2G/3G to, eats dishes without rice or wine to detect the existence less than UE, so also may initiate step 214 by eating dishes without rice or wine, just can not guarantee the sequential of message this moment.

Therefore, connect unusually if eNodeB detects the RRC of UE before step 213, then discharge the S1 that also can be initiated to MME when RRC connects and connect the release request message.

Step 216, eNodeB send S1 to MME and connect Release complete.

More than be when carrying out the MO business, the description of the method embodiment one that the business that the embodiment of the invention is provided is hung up, the method embodiment one that the business that using the embodiment of the invention provides is hung up, UE is when carrying out the MO business, only need earlier with the professional hang-up of PS, can carry out the CS business, do not need earlier the PS business to be switched to the PS territory in the GPRS/UMTS network, finish and recover the PS business that is suspended after the CS business again Deng UE, thereby simplified the handling process of CS business among the CS fallback, the time delay of having avoided handoff procedure to cause has improved efficient, can satisfy the demand of particular service to the time.

Further, when evolution packet network judges not that according to network condition and/or carrier policy needs hang up when handling, for example: when the 2G/3G mobile network can support CS and PS business simultaneously and/or wish to carry out the PS switching, also can carry out PS according to prior art and switch.

More than carry out in the processing of MO business, taking for a long time of resource causes the wasting of resources and flow process failure in the evolution packet network, therefore the evolution Packet Based Network is when the business of execution is hung up processing, can start a resource simultaneously and keep timer, behind this timer expiry, if UE does not still turn back to evolution packet network and carries out the business recovery processing, then evolution packet network is carried out resource release flow, finishes the release of reservation of resource.

The core network device of evolution packet network all can start this resource and keep timer when carrying out pending operation, be that MME receives pending operation indication at step 202, P-GW in step 205 at step 201, S-GW, when determining to adopt pending operation, start described timer.During a kind of improvement project only MME in step 201, start described resource and keep timer.

When evolution packet network has started described resource and has kept timer, in step 210, also can bring UE with this timer duration, UE receives that also starting described resource behind this timer keeps timer.

When carrying out the MT business, the method embodiment one that the business that the embodiment of the invention provides is hung up is following described:

Under CS fallback scene, when the UE that quarters at the EPS network receives that MT is professional, require the EPS network to keep current UE in the carrying of EPS network, if carrying out the PS business then EPS network-caching downlink data, UE stops to send upstream data.After UE receives the indication of CS callee function or sends professional hang-up request, just can forward the 2G/3G network to, select a proper cell to carry out the CS business.At this moment, the method embodiment two Signalling exchange figure that hang up of the business that provides of the embodiment of the invention are as shown in Figure 3:

After step 301, MSC receive the callee function request, send beep-page message to MME.

Step 302, MME send beep-page message to eNodeB.

Step 303, eNodeB send beep-page message to UE.

Can comprise the professional indication of CS in the beep-page message in step 302 and the step 303, thus the current CS business that has MT of notice UE.The professional indication of this CS can be used as paging cause value or one independently indication finish.This moment, MME did not need to carry out following step 304.

No matter current UE is in activated state to the described beep-page message that has comprised the professional indication of CS still is that Idle state all can send.

Receive the beep-page message of MSC as MME after, if current UE is in Idle state, then the beep-page message in step 302 and the step 303 also can directly adopt EPS beep-page message of the prior art, does not namely need to comprise the professional indication of CS.After UE receives this EPS message, can send service request information to MME, transfer UE to activated state, MME carries out following step 304 then, and the callee function indication is sent to UE.

Receive the beep-page message of MSC as MME after, if current UE is in activated state, also not execution in step 302 and step 303, and directly carry out following step 304, the callee function indication is sent to UE.

Step 304, MME send the callee function Indication message to UE.

Step 305, UE send the professional request message of hanging up to MME, require the EPS network to keep the current resource at the EPS network of this UE.

After UE receives the beep-page message or callee function Indication message that comprises the professional indication of CS, if selective reception should business, then can stop to send the upstream data bag of current ongoing PS business immediately, send the professional request message of hanging up to MME, the response message of waiting for MME arrives the back or selects a suitable 2G/3G residential quarter immediately, be stationed the 2G/3G network, carry out the CS business.The follow-up handling process at the 2G/3G network of UE is existing C S operation flow, does not repeat them here.

Further, judging when the network based network condition of EPS and/or carrier policy does not need to hang up when handling, also can carry out PS according to prior art switches, can also carry the indication that whether needs to hang up processing in the beep-page message that comprises the professional indication of CS that this moment, UE received or the callee function Indication message, when comprising the indication of described hang-up processing, UE can stop the upstream data bag of current ongoing PS business immediately, and phase MME sends the professional request message of hanging up; If when not comprising the indication of described hang-up processing, UE can continue ongoing PS business, to wait for the further indication of network.

For example: can will carry out the 2G/3G mobile network's of CS business ability according to UE, and determine whether hanging up the PS business.More common situation is when purpose 2G/3G mobile network can support CS and PS business simultaneously, switch the PS business, to carry out PS business and CS business simultaneously, when purpose 2G/3G mobile network can not support CS and PS business simultaneously, hang up the PS business, proceed this flow process; And/or determine to carry out PS by carrier policy and professionally switch, or hang up the PS business, determine to hang up PS when professional at carrier policy, proceed this flow process, hang up the PS business.

It is optional step that UE sends professional hang-up request message to MME, MME sends over because the callee function Indication message is, MME itself just knows that UE need carry out the MT business, therefore MME can be not indication by UE, directly enter follow-up flow process, certainly, UE sends the professional request message of hanging up, require the EPS network to keep the current resource at the EPS network of this UE, also be fine.

When the MME judgement does not need to hang up processing, can carry out PS according to prior art and switch, do not need to carry out subsequent step this moment.If MME has received that UE hangs up request message in the business that step 305 sends, then MME can be directly to UE forwarding step 314, indication UE network side does not carry out pending operation in the message, after UE receives that the business that contains described judged result is hung up response message, do not forward 2G/3G immediately to and carry out the CS business, but wait for the further indication of network.

It also can be other indication informations that UE sends that this business is hung up request message, and subsequent treatment is carried out in the indication of the network based UE of EPS.

Step 306, MME send to S-GW and upgrade bearing request message.

MME can record this business and hang up indication in the context of this UE, and initiates resource reservation process.

This renewal bearing request message carries " the professional hang-up " indication or valve-off (Gate) indication, and indication S-GW empties the downlink tunnel information of the carrying of this UE correspondence, and data cached when UE has the downlink business of carrying out.Can also carry downlink tunnel information such as the TEID of particular value and IP address in this message, S-GW directly upgrades according to this downlink tunnel information.

After step 307, S-GW receive this message, according to " the professional hang-up " indication of carrying in the renewal bearing request message or the downlink tunnel information of valve-off indication or particular value, the downlink tunnel information of the carrying of this UE correspondence is emptied, and record should " the professional hang-up " indication in the context of the carrying of this UE or UE.

Step 308, S-GW are to "Policy and Charging Rules Function (PCRF, Policy Charging Rules Function) initiates strategy and the control (PCC that charges, Policy Charging Control) regular interaction flow, S-GW will be notified to PCRF from " the professional hang-up " indication or the valve-off indication that MME receives, PCRF indicates according to this, the execution valve-off is handled, and sends the message that valve-off is indicated to S-GW, and S-GW closes the valve of carrying according to the indication of PCRF.

Step 309, S-GW send to P-GW and upgrade bearing request message, and this message is carried " the professional hang-up " indication or valve-off indication.

Step 310, P-GW will be notified to PCRF from " the professional hang-up " indication or the valve-off indication that S-GW receives, PCRF indicates according to this, the execution valve-off is handled, and sends the message that valve-off is indicated to P-GW, and P-GW closes the valve of carrying according to the indication of PCRF.

Step 311, P-GW send to S-GW and upgrade bearing response message.

Step 312, S-GW send to MME and upgrade bearing response message.

Step 313, MME send professional suspending command to eNodeB, the data of indication eNodeB forwarding cache.

MME just can execution in step 313 after step 304 or step 305, and step 313 and subsequent step thereof and step 306 to 312 do not have the sequencing relation, can successively carry out, and also can carry out simultaneously, and wherein more excellent scheme is successively to carry out.

Step 314, MME send the professional response message of hanging up to UE.

This step is optional step, when MME sends professional suspending command to eNodeB, also can send the professional response message of hanging up to UE, after UE receives this message, can forward the 2G/3G residential quarter to, carries out the CS business.

After step 315, eNodeB receive this business suspending command, transmit data to S-GW.

Step 316, S-GW buffer memory are transmitted data.

Step 313,315,316 is option, if the bearer context of this UE not on the current eNodeB for example then can not carry out step 313,315,316.

After step 317, eNodeB finish the data forwarding, send S1 to MME and connect the release request message.

Step 318, MME receive after the connection of eNodeB discharges request message and send S1 connection release command to eNodeB.

If the RRC of step 319 this UE correspondence this moment connects also exist, then initiate RRC and connect the release handling process.

Step 320, eNodeB send S1 to MME and connect Release complete.

And step 313～step 317 is optional step, and step 318～step 320 determines whether initiate by MME.After if MME receives beep-page message in the step 301, current UE is in Idle state, this moment, MME adopted the beep-page message of step 302 to arrive to UE indication callee function, UE does not return the business hang-up request message of step 305 to network then, but directly forward the 2G/3G network to, do not exist this moment S1 to connect between eNodeB and the MME, at this moment, the flow process of step 313～step 320 does not just need to carry out.

More than carry out in the processing of MT business, taking for a long time of resource causes the wasting of resources and flow process failure in the evolution packet network, therefore the evolution Packet Based Network is when the business of execution is hung up processing, can start a resource simultaneously and keep timer, behind this timer expiry, if UE does not still turn back to evolution packet network and carries out the business recovery processing, then evolution packet network is carried out resource release flow, finishes the release of reservation of resource.

The core network device of evolution packet network all can start this resource and keep timer when carrying out pending operation, be that MME is before step 306, and S-GW in step 306, P-GW after step 309 is received the pending operation indication, when determining to adopt pending operation, start described timer.During a kind of improvement project only MME before forwarding step 306, start described resource and keep timer.

When evolution packet network has started described resource and has kept timer, in step 314, also can bring UE with this timer duration, UE receives that also starting described resource behind this timer keeps timer.

More than be when carrying out the MT business, the description of the method embodiment two that the business that the embodiment of the invention is provided is hung up, the method embodiment two that the business that using the embodiment of the invention provides is hung up, UE is when carrying out the MT business, only need earlier with the professional hang-up of PS, can carry out the CS business, do not need earlier the PS business to be switched to the PS territory in the GPRS/UMTS network, finish and recover the PS business that is suspended after the CS business again Deng UE, thereby simplified the handling process of CS business among the CS fallback, the time delay of having avoided handoff procedure to cause has improved efficient, can satisfy the demand of particular service to the time.

Among the present invention, quarter at the UE of EPS network owing to needing to carry out the professional PS business of hanging up in the EPS network of CS, and after forwarding the 2G/3G network to and finishing relevant CS business, this UE need select suitable LTE residential quarter to insert again in the EPS network immediately, and recovers the PS business that is suspended

If having started resource in carrying out the pending operation process, UE keeps timer, when then after UE finishes the CS business, inserting the EPS network, if shown in timer overtime, namely mean network side discharged before resources reserved during pending operation, this moment, UE did not need to carry out the recovery processing, but resources reserved before local the release.

Keep timer or this timer and do not have overtimely when UE is not activated resource in the hang-up process, then UE carries out following recovery flow process.

Because UE is kept in motion, therefore UE is after the 2G/3G network is finished the CS business, after forwarding the EPS network to, this UE may leave the tracking area (TA of original service, Tracking Area), do not comprise the affiliated TA in LTE residential quarter of the current selection of this UE in the TA tabulation of namely recording among this UE, this moment, UE needed the initiating updating of tracking area flow process to be accomplished to the registration of EPS network.Otherwise, if after UE forwards the EPS network to, also be in the tracking area scope of original service, comprised the TA under the LTE residential quarter of the current selection of this UE in the TA that namely records among this UE tabulation, this UE can carry out the processing that recovers the PS business that is suspended immediately.

The method embodiment three that business that the embodiment of the invention provides is hung up, the PS Business Processing of the hang-up of the recovery when UE also is in the tracking area scope of original service just, its Signalling exchange figure as shown in Figure 4:

Step 401, UE are stationed the LTE residential quarter again, behind the access EPS network, detect the PS business that needs to recover hang-up, then send service request information to MME.

Can carry the information indication of " business recovery " in this service request information.

After step 402, MME receive this service request information, information indication according to " business recovery " that carry in the service request information of receiving, or " the professional hang-up " information indication of this UE that records when carrying out pending operation before, carry out and recover Business Processing, then send to S-GW and upgrade bearing request message.

Carry " business recovery " indication or Open valve indication in this renewal bearing request message.

After S-GW receives this renewal bearing request message, according to its " business recovery " indication of carrying or Open valve indication, the resource that recovery is suspended, but continue the packet that buffer memory is received, after receiving downlink tunnel information, again cached data packet is sent to eNodeB.In this process, if S-GW receives the downlink data packet that this UE is new, be not initiated to the paging request of MME.

Step 403, S-GW initiate PCC rule interaction flow to PCRF, S-GW is notified to PCRF from " business recovery " indication or the Open valve indication that MME receives, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to S-GW, S-GW opens the valve of carrying according to the indication of PCRF.

This step is carried out when S-GW has the PCEF function.

Step 404, S-GW send to P-GW and upgrade bearing request message.

This renewal bearing request message carries " business recovery " indication or Open valve indication.

Step 405, P-GW will be notified to PCRF from " business recovery " indication or the Open valve indication that S-GW receives, PCRF indicates according to this, the execution Open valve is handled, and sends the message that Open valve is indicated to P-GW, and P-GW opens the valve of carrying according to the indication of PCRF.

Step 406, P-GW send to S-GW and upgrade bearing response message.

Step 407, S-GW send to MME and upgrade bearing response message.

Step 408, MME send the initialization context request message to eNodeB, set up the interface-free resources of radio bearer.

MME just can execution in step 408 after receiving service request information, and step 408 and subsequent step thereof and step 402 to 407 do not have the sequencing relation, can successively carry out, and also can carry out simultaneously, and wherein more excellent scheme is execution simultaneously.

Set up the radio bearer of eating dishes without rice or wine between step 409, eNodeB and the UE.

Set up and finished when UE detects the corresponding radio bearer of eating dishes without rice or wine, then can send up packet.

Step 410, eNodeB send the initialization context response information to MME.

Carry in this initialization context response information that eNodeB distributes, the downlink tunnel information for the relevant bearer of S-GW use comprises TEID, IP address etc.

Step 411, MME send to S-GW and upgrade bearing request message.

Carry the bearing downlink tunnel information that eNodeB distributes in this renewal bearing request message.

Step 412, S-GW upgrade the downlink tunnel information of this UE according to the information of carrying in the request message.And to MME transmission renewal bearing response message.

After S-GW has upgraded downlink tunnel information, can send the downlink data packet of buffer memory.

Finish the recovery of hanging up the PS business this moment.

In this handling process, step 402～step 407 is separate with step 408～step 412, does not have precedence relationship, can carry out separately.Be that MME also can execution in step 408 in execution in step 402.

Resource in evolution packet network equipment keep timer do not have overtime, then receive relevant recovery indication after, stop described resource and keep timer.Be that MME is receiving that step 401, S-GW are receiving step 402, P-GW when receiving step 404, overtime if the resource that starts reservation timer does not have, then stop this timer.

There is downlink tunnel information in corresponding carrying in S-GW, namely can send downlink data packet, therefore can set up the radio bearer of eating dishes without rice or wine earlier, send the initialization context response information at eNodeB to MME, after providing downlink tunnel information to MME, again to S-GW starting update load bearing flow process.The recovery of the method embodiment four that the business that this moment, the embodiment of the invention provided is hung up is hung up PS traffic signaling interaction figure as shown in Figure 5:

Step 501, UE are stationed the LTE residential quarter again, behind the access EPS network, detect the PS business that needs to recover hang-up, then send service request information to MME.

Step 502, MME send the initialization context request message to eNodeB, set up the interface-free resources of carrying.

Set up the radio bearer of eating dishes without rice or wine between step 503, eNodeB and the UE.

Step 504, eNodeB send the initialization context response information to MME.

Carry in this initialization context response information that eNodB distributes, the downlink tunnel information for the relevant bearer of S-GW use comprises TEID, IP address etc.

Step 505, MME send the bearer update request message to S-GW.

The downlink tunnel information that comprises the carrying that eNodeB provides in this bearer update request message, MME can also according to before " the professional hang-up " information indication of this UE of recording when carrying out pending operation, carry out and recover Business Processing, in this bearer update request message, carry one " business recovery " indication or Open valve indication.

After S-GW receives this bearer update request message, can or should " business recovery " indicate or the Open valve indication according to its downlink tunnel information of carrying, more the downlink tunnel information of new bearer sends the downlink data packet of buffer memory, and carries out follow-up resource recovery and handle.

Step 506, S-GW initiate PCC rule interaction flow to PCRF, S-GW is notified to PCRF from " business recovery " indication or the Open valve indication that MME receives, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to S-GW, S-GW opens the valve of carrying according to the indication of PCRF.

This step is carried out when S-GW may have the PCEF function.

Step 507, S-GW send to P-GW and upgrade bearing request message.

This message carries " business recovery " indication or Open valve indication.

Step 508, P-GW will be notified to PCRF from " business recovery " indication or the Open valve indication that S-GW receives, PCRF indicates according to this, the execution Open valve is handled, and sends the message that Open valve is indicated to P-GW, and P-GW opens the valve of carrying according to the indication of PCRF.

Step 509, P-GW send to S-GW and upgrade bearing response message.

Step 510, S-GW send to MME and upgrade bearing response message.

Finish the recovery of hanging up the PS business this moment.

Further, this handling process in step 503 after UE has set up radio bearer, UE may send the upstream data bag immediately, and the valve that this moment, S-GW or P-GW went up corresponding carrying may also be in closed condition, thereby can cause the upstream data bag to be abandoned by S-GW or P-GW.Appearance for fear of this situation, when having received uplink packet if the valve of S-GW or P-GW is in closed condition, if the UE under this carrying is in suspended state, then S-GW or P-GW can select this packet of first buffer memory, perhaps after S-GW or P-GW receive this up packet, send the Open valve request message to PCRF, indicate the PCEF Open valve by PCRF, thereby finish the transmission of upstream data bag.

Resource in evolution packet network equipment keep timer do not have overtime, then receive relevant recovery indication after, stop described resource and keep timer.Be that MME is receiving that step 504, S-GW are receiving step 505, P-GW when receiving step 507, overtime if the resource that starts reservation timer does not have, then stop this timer.

When after UE returns the EPS network, having left the tracking area scope of original service, can in the tracing section updating flow process of initiating, finish the recovery of hanging up resource; Even and UE also can select the initiating updating of tracking area flow process to finish the recovery of hanging up resource also when the tracking area scope of original service.The recovery of the method embodiment five that the business that the embodiment of the invention provides is hung up is hung up PS traffic signaling interaction figure as shown in Figure 6:

After step 601, UE are stationed the LTE residential quarter again, detect the PS business that needs to recover hang-up, then send the tracing section updating request message to MME.In this message, can carry and activate sign (active flag), to require the current carrying of network recovery.

Can carry the information indication of " business recovery " in this tracing section updating request message.

After step 602, MME receive this tracing section updating request message, information indication according to " business recovery " that carry in the service request information of receiving, or " the professional hang-up " information indication of this UE that records when carrying out pending operation before, carry out and recover Business Processing, then send to S-GW and upgrade bearing request message, carry " business recovery " indication or Open valve indication in this message.

Step 603, S-GW initiate PCC rule interaction flow to PCRF, S-GW is notified to PCRF from " business recovery " indication or the Open valve indication that MME receives, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to S-GW, S-GW opens the valve of carrying according to the indication of PCRF.

This step is carried out when S-GW may have the PCEF function.

Step 604, S-GW send to P-GW and upgrade bearing request message.

This message is carried " business recovery " indication or Open valve indication.

Step 605, P-GW will be notified to PCRF from " business recovery " indication or the Open valve indication that S-GW receives, PCRF indicates according to this, the execution Open valve is handled, and sends the message that Open valve is indicated to P-GW, and P-GW opens the valve of carrying according to the indication of PCRF.

Step 606, P-GW send to S-GW and upgrade bearing response message.

Step 607, S-GW send to MME and upgrade bearing response message.

Step 608, MME send tracing section updating to UE and accept message.

MME just can execution in step 608 after receiving the tracing section updating request message, and step 608 and subsequent step thereof and step 602 to 607 do not have the sequencing relation, can successively carry out, and also can carry out simultaneously, and wherein more excellent scheme is execution simultaneously.

Step 609, UE send tracing section updating to MME and finish message.

If carried active flag in the tracing section updating request message in the step 601, or according to " business recovery " indication, system can finish the foundation of the corresponding interface-free resources of carrying in the process of execution in step 608 and step 609.At this moment, set up and finished when UE detects the corresponding radio bearer of eating dishes without rice or wine, then can send up packet; The tracing section updating that MME receives in the step 609 is finished the downlink tunnel information that can carry the carrying that eNodeB provides in the message, comprises TEID, IP address etc.

Step 610, after MME has received the downlink tunnel information that eNodeB provides, MME sends to S-GW and upgrades bearing request message, carries the bearing downlink tunnel information that eNodeB provides in this message.

Step 611, S-GW upgrade the downlink tunnel information of this UE according to the information of carrying in the request message.And to MME transmission renewal bearing response message.

Finish the recovery of hanging up the PS business this moment.

In this handling process, step 602～step 607 is separate with step 608～step 612, does not have precedence relationship, can carry out separately.Be that MME also can execution in step 608 in execution in step 602.

Resource in evolution packet network equipment keep timer do not have overtime, then receive relevant recovery indication after, stop described resource and keep timer.Be that MME is receiving that step 601, S-GW are receiving step 402, P-GW when receiving step 604, overtime if the resource that starts reservation timer does not have, then stop this timer.

There is downlink tunnel information in corresponding carrying in S-GW, namely can send downlink data packet, therefore can receive that the tracing section updating that UE sends finishes message at MME, and after therefrom having obtained downlink tunnel information, again to S-GW starting update load bearing flow process.The recovery of the method embodiment six that the business that the embodiment of the invention provides is hung up is hung up PS traffic signaling interaction figure as shown in Figure 7:

After step 701, UE are stationed the LTE residential quarter again, detect the PS business that needs to recover hang-up, then send the tracing section updating request message to MME.In this message, can carry and activate sign (active flag), to require the current carrying of network recovery.

Step 702, MME send tracing section updating to UE and accept message.

Step 703, UE send tracing section updating to MME and finish message.

If carried active flag in the tracing section updating request message in the step 701, or according to " business recovery " indication, system can finish the foundation of the corresponding interface-free resources of carrying in the process of execution in step 702 and step 703.At this moment, set up and finished when UE detects the corresponding radio bearer of eating dishes without rice or wine, then can send up packet; The tracing section updating that MME receives in the step 703 is finished the downlink tunnel information of carrying the carrying that eNodeB provides in the message, comprises TEID, IP address etc.

Step 704, MME send the bearer update request message to S-GW.

After S-GW receives this bearer update request message, can or should " business recovery " indicate or the Open valve indication according to its downlink tunnel information of carrying, the downlink data packet of the more downlink tunnel information of new bearer, and transmission buffer memory, and carry out follow-up resource recovery and handle.

Step 705, S-GW initiate PCC rule interaction flow to PCRF, logical " business recovery " that S-GW is received from MME indicated or the Open valve indication is notified to PCRF, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to S-GW, S-GW opens the valve of carrying according to the indication of PCRF.

This step is carried out when S-GW may have the PCEF function.

Step 706, S-GW send to P-GW and upgrade bearing request message.

Step 707, P-GW initiate PCC rule interaction flow to PCRF, to be notified to PCRF from " business recovery " indication or the Open valve indication that S-GW receives, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to P-GW, P-GW opens the valve of carrying according to the indication of PCRF.

Step 708, P-GW send to S-GW and upgrade bearing response message.

Step 709, S-GW send to MME and upgrade bearing response message.

Further, when UE has carried activation sign or " business recovery " indication in step 701 after, then in step 702 and step 703 after UE has set up radio bearer, may send the upstream data bag immediately, and the valve that this moment, S-GW or P-GW went up corresponding carrying may also be in closed condition, thereby can cause the upstream data bag to be abandoned by S-GW or P-GW.Appearance for fear of this situation, when having received uplink packet if the valve of S-GW or P-GW is in closed condition, if the UE under this carrying is in suspended state, then PCEF can select this packet of first buffer memory, perhaps after S-GW or P-GW receive this up packet, send the Open valve request message to PCRF, indicate the PCEF Open valve by PCRF, thereby finish the transmission of upstream data bag.

Resource in evolution packet network equipment keep timer do not have overtime, then receive relevant recovery indication after, stop described resource and keep timer.Be that MME is receiving that step 703, S-GW are receiving step 704, P-GW when receiving step 706, overtime if the resource that starts reservation timer does not have, then stop this timer.

After UE returns the EPS network, because the change of tracking area, the MME of its service or S-GW all might change, for MME or S-GW in its service change, also can recover to hang up the PS business when perhaps MME and S-GW all change, the recovery of the method embodiment seven that the business that the embodiment of the invention provides is hung up is hung up PS traffic signaling interaction figure as shown in Figure 8:

Step 801, UE are stationed the LTE residential quarter again, behind the access EPS network, detect the PS business that needs to recover hang-up, then send the tracing section updating request message to MME.In this message, can carry and activate sign (active flag), to require the current carrying of network recovery.

If change has taken place step 802 MME, the MME that then receives the tracing section updating request message is the new service node of this UE, i.e. new MME, and this stylish MME sends context request message to old MME, obtains the context that this UE records in original MME.

Step 803, old MME send context response information to new MME.If UE is marked as " the professional hang-up " in old MME, then need to carry this indication in this context response information.

Step 804, new MME send context acknowledgement message to old MME.

Step 805, new MME select a S-GW, if this S-GW is different from the S-GW of original this UE of service, then sends to this new S-GW and set up the carrying request, require the carrying of setting up this UE.

If old MME indicates this UE to be suspended in step 803, then this is set up and can carry " business recovery " indication or Open valve indication in the bearer messages.

After new S-GW receives this renewal bearing request message, according to its " business recovery " indication of carrying or Open valve indication, when follow-up when receiving the packet of downlink data packet or forwarding, if this carrying does not also have downlink tunnel information, then do not send the downlink data arrival notice to MME, after downlink tunnel information is updated, send cached data packet again.

Step 806, new S-GW send to P-GW and upgrade bearing request message, and this message can also be carried " business recovery " indication or Open valve indication except carrying new S-GW to the downlink tunnel information that P-GW provides.

Step 807, P-GW initiate PCC rule interaction flow to PCRF, to be notified to PCRF from " business recovery " indication or the Open valve indication that S-GW receives, PCRF indicates according to this, the execution Open valve is handled, and sending the message of Open valve indication to P-GW, P-GW opens the valve of carrying according to the indication of PCRF.

Step 808, P-GW send to new S-GW and upgrade bearing response message.

Step 809, new S-GW send to new MME and set up bearing response message.

This is set up and carries the uplink tunnel information that new S-GW provides in the bearing response message.If new S-GW detects this UE and is in suspended state in step 805, for example judge this UE and be in suspended state by setting up " business recovery " indication of carrying in the bearer messages or Open valve indication, then can carry the forwarding tunnel information that offers old S-GW in this message.Described forwarding tunnel information can be distributed separately by new S-GW, also can utilize existing S-GW to offer the downlink tunnel information of P-GW.

If step 810 old MME in step 803 indicates this UE to be suspended, and newly MME has selected new S-GW, and then new MME sends to old MME and transmits data request information, and requirement is transmitted to new S-GW with the downlink data packet of the UE of old S-GW buffer memory.Therefore can carry the forwarding tunnel information that new S-GW goes up bearer context in this message.

Step 811, old MME send to old S-GW and transmit data request information, can carry the forwarding tunnel information that new S-GW goes up bearer context in this message.

After old S-GW receives this message, begin data in buffer is forwarded among the new S-GW.

Step 812, old S-GW send the forwarding request of data to old MME and accept message.

Step 813, old MME send the forwarding request of data to new MME and accept message.

When new MME did not select new S-GW, then execution in step 805～step 813 not used the step 602～step 607 among Fig. 6 to substitute.

Step 814, new MME and HSS initiate more new technological process of position, obtain the subscription data of this UE, and register new MME etc. to HSS.

Step 815, MME send tracing section updating to UE and accept message.

Step 816, UE send tracing section updating to MME and finish message.

If after having carried activation sign or " business recovery " indication in the tracing section updating request message in the step 801, then system finishes the foundation of carrying corresponding interface-free resources in step 815 and step 816 process.At this moment, set up and finished when UE detects the corresponding radio bearer of eating dishes without rice or wine, then can send up packet; The tracing section updating that MME receives in the step 816 is finished the downlink tunnel information that can carry the carrying that eNodeB provides in the message, comprises TEID, IP address etc.

Step 817, after new MME has received the downlink tunnel information that eNodeB provides, MME sends to new S-GW and upgrades bearing request message, carries the bearing downlink tunnel information that eNodeB provides in this message.

Step 818, S-GW upgrade the downlink tunnel information of this UE according to the information of carrying in the request message.And to MME transmission renewal bearing response message.

When new MME did not select new S-GW, step 817～step 818 can be replaced by the step 704 among Fig. 7～step 709.

Variation has all taken place in MME and S-GW in the present embodiment, then can not exist the resource of startup to keep timer among new MME and the S-GW, but can exist the resource of startup to keep timer among the P-GW, therefore when P-GW when receiving step 806, if it is overtime that the resource that starts reservation timer does not have, then stop this timer.

After the resource that starts in the evolution packet network equipment of the core network keeps timer expiry, need to discharge resources reserved.

When all having started resource reservation timer among MME, S-GW, the P-GW, then behind described timer expiry, described equipment this locality discharges resources reserved.So-called local release refers to that equipment does not need directly to discharge related resource to other equipment sending messages.

Keep timer when having only equipment component to start resource, a kind of typical situation is to start described resource among the MME to keep timer, and then behind described timer expiry, this equipment is initiated a resource release flow, as carry the release flow process, require relevant network element to discharge described resources reserved.It is prior art that described carrying discharges flow process, repeats no more herein.

The description of the method embodiment that the business that more than being provides the embodiment of the invention is hung up, the method embodiment that the business that using the embodiment of the invention provides is hung up, UE is when carrying out the MO business, only need earlier with the professional hang-up of PS, can carry out the CS business, do not need earlier the PS business to be switched to the PS territory in the GPRS/UMTS network, finish and recover the PS business that is suspended after the CS business again Deng UE, thereby simplified the handling process of CS business among the CS fallback, the time delay of having avoided handoff procedure to cause, improve efficient, can satisfy the demand of particular service to the time.

Owing to do not need the PS business is switched to PS territory in the GPRS/UMTS network, just avoided because the 2G network can not be supported CS and PS business, the wasting of resources that causes and possible failure simultaneously yet.

Further, execute after the CS business gets back to the EPS network at UE, recover the PS business hung up again, these cached data packet are sent to UE, thus service fail and the inaccurate problem of chargeing of avoiding data packet discarding to cause.

One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises the steps: when carrying out

A kind of professional method of hanging up, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, it is characterized in that, comprising:

When the subscriber equipment that quarters at packet domain need be initiated circuit domain business, described packet domain core network equipment keeps the packet field network resource of described subscriber equipment according to the indication of receiving; When described subscriber equipment is current when carrying out business, then buffer memory sends to the downlink service data of described subscriber equipment and/or stops sending upstream data, and is transformed into the circuit domain communication network and carries out circuit domain business; Perhaps when described subscriber equipment is current when not carrying out business, then be transformed into the circuit domain communication network and carry out circuit domain business.

And a kind of method of business recovery, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, it is characterized in that, described method comprises:

Finish when subscriber equipment carries out circuit domain business in circuit-domain network, when inserting packet field network again, judge whether described subscriber equipment has packet switch domain service to be suspended, if there is described packet domain core network equipment then to recover the packet switch domain service of described subscriber equipment.

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

The system embodiment that the business that the embodiment of the invention provides is hung up comprises: subscriber equipment, first mobile management entity, first gateway.

Wherein first mobile management entity is used for keeping the packet field network resource of described subscriber equipment according to the indication of receiving when the subscriber equipment that quarters at packet domain need be initiated circuit domain business; Send the renewal bearing request message that indication is hung up;

First gateway be used for to receive the renewal bearing request message that indication that described mobile management entity sends is hung up, and the indication of the renewal bearing request message of hanging up according to described indication keeps the packet field network resource of described subscriber equipment;

Subscriber equipment is used for stopping current ongoing packet switch domain service, is transformed into circuit-domain network.

The system embodiment of the business recovery that the embodiment of the invention provides comprises: subscriber equipment, first mobile management entity, first gateway, wherein:

Described first mobile management entity, being used for carrying out circuit domain business at subscriber equipment in circuit-domain network finishes, when inserting packet field network again, judge whether described subscriber equipment has packet switch domain service to be suspended, if the packet switch domain service resource of then recovering described subscriber equipment is arranged, and send the message that indication recovers to described first gateway;

Described first gateway be used for to receive the message that indication that described first mobile management entity sends recovers, and the indication of the message of recovering according to described indication recovers the packet field network resource of described subscriber equipment

The system embodiment that the business that the embodiment of the invention provides is hung up, subscriber equipment embodiment mobile management entity embodiment one, gateway embodiment one, embodiment basically identical that the structure of wherein each device and function and the embodiment of the invention provide, be not described in detail at this, concrete reference hereinafter.

The subscriber equipment embodiment that the embodiment of the invention provides comprises:

The professional request unit of hanging up is used for when preparing to carry out circuit switched domain service, sends the professional request of hanging up to mobile management entity, to keep the packet field network resource of described subscriber equipment, the described packet switch domain service downlink data of buffer memory;

First access unit is used for stopping current ongoing packet switch domain service, is transformed into circuit-domain network.

Second access unit is used for after described circuit switched domain service finishes, and selects Long Term Evolution plan residential quarter, inserts the grouping system network again;

First transmitting element is used for sending message to described mobile management entity, to recover grouping commutative field service;

The unit is set up in first carrying, is used for setting up radio bearer.

Wherein the professional request unit of hanging up comprises:

The first professional request unit of hanging up is used for when preparing to initiate circuit switched domain service, sends the professional request of hanging up to mobile management entity;

Or the second professional request unit of hanging up, be used for when receiving the callee function Indication message that described mobile management entity sends, send the professional request of hanging up to mobile management entity.

Wherein, first transmitting element comprises:

The first service request information unit is used for sending service request information to described mobile management entity;

Or the first tracing section updating request message unit, be used for sending the tracing section updating request message to described mobile management entity.

Wherein, first carrying is set up the unit and is comprised:

The unit is set up in second carrying, is used for the radio bearer between foundation and the evolution base station;

The unit is set up in the 3rd carrying, and the tracing section updating that is used for the described mobile management entity transmission of reception is accepted message; Send tracing section updating to described mobile management entity and finish message, the radio bearer between foundation and the described mobile management entity.

The mobile management entity embodiment one that the embodiment of the invention provides comprises:

The first resource stick unit is used for keeping the packet field network resource of described subscriber equipment according to the indication of receiving when the subscriber equipment that quarters at packet domain need be initiated circuit domain business;

The first new bearer request unit more is used for sending the renewal bearing request message that indication is hung up to gateway, and the grouping commutative field service that described subscriber equipment is being carried out is hung up in request;

First receiving element is used for receiving the more new bearer response that described gateway returns.

First judging unit is hung up request for the business that sends according to the subscriber equipment that receives, and judgement quarters at the subscriber equipment of packet domain need initiate circuit domain business;

Or second judging unit, be used for after sending the callee function Indication message to described subscriber equipment, judge that the subscriber equipment that quarters at packet domain need initiate circuit domain business.

The first professional suspending command unit is used for sending professional suspending command to evolution base station;

The first business recovery unit is used for when inserting packet field network again, recovering the packet switch domain service of described subscriber equipment after described subscriber equipment circuit domain business finishes.

Timer is used for after the packet field network resource that keeps described subscriber equipment, starts resource and keeps timer, behind described timer expiry, if described subscriber equipment does not return packet field network and executes the task, then discharges described reservation of resource.

The first tracing section updating requesting processing is used for receiving the tracing section updating request message that other subscriber equipmenies send;

Second context unit is used for sending context request message to other mobile management entities; Receive the context response information that described other mobile management entities send, obtain the context of the grouping commutative field service information that comprises hang-up that described other subscriber equipmenies record in described other mobile management entities;

The second business recovery unit is used for sending the request that is used for recovering business to other gateways, to recover the grouping commutative field service of described hang-up;

The primary importance updating block is used for initiating more new technological process of position with home subscriber server, obtains the subscription data of described other subscriber equipmenies, and to described home subscriber server registration;

The first downlink tunnel information process unit is used for sending tracing section updating to described other subscriber equipmenies and accepts message; The tracing section updating that receives described other subscriber equipmenies transmissions is finished message, radio bearer between foundation and described other subscriber equipmenies, finish from described tracing section updating and to obtain described downlink tunnel information the message, the renewal bearing request message that will carry described downlink tunnel information sends to described other gateways.

Wherein, the first business recovery unit comprises:

Second receiving element, be used for to receive that subscriber equipment sends in order to recover the message of packet switch domain service;

The second new bearer request unit more is used for sending the renewal bearing request message that indication recovers to described gateway, to recover the grouping commutative field service of described subscriber equipment; Receive the more new bearer response that described gateway sends;

The unit is set up in the 4th carrying, is used for setting up radio bearer, obtains downlink tunnel information;

Second transmitting element is used for sending described downlink tunnel information to described gateway.

First context unit is used for receiving the context request message that new mobile management entity sends; Send context response information to described new mobile management entity, carry the context of the grouping commutative field service information of described subscriber equipment hang-up.

First transmits data cell, is used for receiving the forwarding data request information that described new mobile management entity sends; Send the forwarding data request information to old gateway, make described old gateway that data in buffer is forwarded to new gateway; The forwarding request of data that receives described old gateway transmission is accepted message; Send the forwarding request of data to described new mobile management entity and accept message.

Wherein, second receiving element comprises:

The second service request information unit is used for receiving the service request information that subscriber equipment sends;

Or with update inquiry information unit, the second track district, be used for receiving the tracing section updating request message that subscriber equipment sends.

Wherein, the 4th carrying is set up the unit and is comprised:

The unit is set up in the 5th carrying, be used for sending the initialization context request message to described evolution base station, set up the interface-free resources of radio bearer, receive the initialization context response information that described evolution base station sends, from described initialization context response information, obtain described downlink tunnel information;

Or the 6th carrying set up the unit, be used for sending tracing section updating to described subscriber equipment and accept message; Receive the tracing section updating that described subscriber equipment sends and finish message, set up and described subscriber equipment between radio bearer, finish from described tracing section updating and to obtain described downlink tunnel information the message.

Wherein, second transmitting element comprises:

The 3rd transmitting element sends to described gateway for the renewal bearing request message that will carry described downlink tunnel information;

Or the 4th transmitting element, be used for that described downlink tunnel information is carried at the renewal bearing request message that described indication recovers and send to described gateway.

The mobile management entity embodiment one that the embodiment of the invention provides, the circuit switched domain service that namely being equivalent to the embodiment of the invention provides return first mobile management entity among the treatment system embodiment of legacy network.

The mobile management entity embodiment two that the embodiment of the invention provides comprises:

The second tracing section updating requesting processing is used for receiving the tracing section updating request message that described subscriber equipment sends;

The 3rd context unit is used for sending context request message to old mobile management entity; Receive the context response information that described old mobile management entity sends, obtain the context of the grouping commutative field service information that comprises hang-up that described subscriber equipment records in described old mobile management entity;

The 3rd business recovery unit is used for sending the request that is used for recovering business to gateway, to recover the grouping commutative field service of described hang-up;

Second place updating block is used for initiating more new technological process of position with home subscriber server, obtains the subscription data of described subscriber equipment, and to described home subscriber server registration;

The second downlink tunnel information process unit is used for sending tracing section updating to described subscriber equipment and accepts message; The tracing section updating that receives described subscriber equipment transmission is finished message, radio bearer between foundation and the described subscriber equipment, finish from described tracing section updating and to obtain described downlink tunnel information the message, the renewal bearing request message that carries described downlink tunnel information is sent to described gateway.

Wherein, the 3rd business recovery unit comprises:

The 4th business recovery unit is used for sending the more new bearer request that is used for recovering business to described gateway; Receive the more new bearer response that described gateway sends;

Or the 5th business recovery unit is used for sending the foundation carrying request that is used for the business of recovering to new gateway; Receive the foundation carrying response that described new gateway sends; Send the forwarding data request information to described old mobile management entity.

The evolution base station embodiment that the embodiment of the invention provides comprises:

The second professional suspending command unit is used for receiving the professional suspending command message that mobile management entity sends;

Second connects releasing unit, is used for subscriber equipment carrying data in buffer is forwarded to gateway, so that the described data of described cached in serving gateway.

Second connects releasing unit, is used for sending connection to described mobile management entity and discharges request message; Receive the connection release command message that described mobile management entity sends; Send the connection Release complete to described mobile management entity.

The unit is set up in the 7th carrying, is used for receiving the initialization context request message that described mobile management entity sends, and sets up the interface-free resources of radio bearer; Radio bearer between foundation and the subscriber equipment;

Initialization context response information unit is used for sending the initialization context response information that carries downlink tunnel information to described mobile management entity.

The gateway embodiment one that the embodiment of the invention provides comprises:

The 3rd receiving element is for the renewal bearing request message of the indication hang-up that receives the mobile management entity transmission;

Hang up processing unit, be used for the indication according to the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, valve-off records described hang-up indication.

Buffer unit is used for when described ongoing packet switch domain service comprises downlink data the described packet switch domain service downlink data of buffer memory.

The 3rd transmits data cell, be used for receiving the data that evolution base station is transmitted, and the described data of buffer memory.

Recover processing unit, be used for the renewal bearing request message of the indication recovery of the described mobile management entity transmission of reception; The indication of the renewal bearing request message of recovering according to described indication, Open valve; Send the renewal bearing response message to described mobile management entity; Obtain and upgrade downlink tunnel information, send the downlink data packet of buffer memory.

First pass is initiated the unit, is used for initiating strategy and charging control rule interaction flow to "Policy and Charging Rules Function;

And/or new bearer request unit depth of the night, be used for sending the renewal bearing request message that indication is hung up or indication is hung up to grouped data network gateway, so that described grouped data network gateway is initiated strategy and charging control rule interaction flow to "Policy and Charging Rules Function.

The 3rd transmits data cell, is used for receiving the forwarding request of data that old mobile management entity sends, and is forwarded to new gateway with data cached; Send the forwarding data to described old mobile management entity and accept message.

The gateway embodiment one that the embodiment of the invention provides, the circuit switched domain service that namely being equivalent to the embodiment of the invention provides return first gateway among the treatment system embodiment of legacy network.

The gateway embodiment two that the embodiment of the invention provides comprises:

The 3rd change process unit is used for receiving the foundation carrying request that described mobile management entity sends; Send the renewal bearing request message that is used for recovering business to grouped data network gateway; Receive the renewal bearing response message that described grouped data network gateway sends;

The second downlink tunnel processing unit is used for setting up bearing response message to described mobile management entity transmission; Receive the renewal bearing request message that carries described downlink tunnel information that described mobile management entity sends, obtain and upgrade described downlink tunnel information, send the downlink data packet of buffer memory.

Buffer unit is used for receiving the data cached of old gateway forwarding.

The grouped data network gateway embodiment that the embodiment of the invention provides comprises:

Operating unit is used for receiving the more new bearer request that gateway sends; Indication according to described more new bearer request is operated valve;

Second flow process is initiated the unit, is used for initiating strategy and charging control rule interaction flow to "Policy and Charging Rules Function;

More the new bearer response unit is used for sending more new bearer response to described gateway.

The circuit switched domain service that the embodiment of the invention provides returns the concrete operations mode for the treatment of system embodiment, subscriber equipment embodiment, evolution base station embodiment, mobile management entity embodiment one, mobile management entity embodiment two, gateway embodiment one, gateway embodiment two, the grouped data network gateway embodiment of legacy network can be with reference to above, the description of the method embodiment that the business that the embodiment of the invention provides is hung up is not described in detail at this.

More than a kind of professional method of hanging up provided by the present invention, method, system and the equipment of business recovery are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. professional method of hanging up, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, it is characterized in that, comprising:

When the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity receives the business hang-up request that subscriber equipment sends;

Described first mobile management entity is hung up request according to the business that receives, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication;

When described subscriber equipment is current when carrying out business, then buffer memory sends to the downlink service data of described subscriber equipment and/or stops sending upstream data, and is transformed into the circuit domain communication network and carries out circuit domain business; Perhaps when described subscriber equipment is current when not carrying out business, then be transformed into the circuit domain communication network and carry out circuit domain business.

2. the professional method of hanging up as claimed in claim 1 is characterized in that the downlink service data that described buffer memory sends to described subscriber equipment comprises:

Described first cached in serving gateway sends to the downlink service data of described subscriber equipment;

And/or described first mobile management entity sends professional suspending command to evolution base station; Described evolution base station is forwarded to described first gateway, the data of the described forwarding of described first cached in serving gateway with the data of the described subscriber equipment of buffer memory after receiving described professional suspending command.

3. the method for business hang-up as claimed in claim 1 or 2 is characterized in that, described first gateway records described hang-up indication and also comprises afterwards in the downlink tunnel information of the corresponding carrying of empty user equipment:

Described first gateway sends more new bearer response to described first mobile management entity, described first mobile management entity is after receiving described more new bearer response, send the professional response message of hanging up to described subscriber equipment, described subscriber equipment is transformed into the circuit domain communication network again and carries out circuit domain business after receiving described more new bearer response.

4. the professional method of hanging up as claimed in claim 1 or 2 is characterized in that described method also comprises:

Described subscriber equipment inserts packet field network again after described circuit domain business finishes; Described packet domain core network equipment recovers the packet switch domain service of described subscriber equipment.

5. the professional method of hanging up as claimed in claim 4 is characterized in that the packet switch domain service of the described subscriber equipment of described recovery comprises:

Described subscriber equipment sends in order to recover the message of packet switch domain service to described first mobile management entity;

Described first mobile management entity receive described in order to the message of recovering described packet switch domain service after, send the renewal bearing request message that indication recovers to described first gateway; Set up radio bearer, obtain downlink tunnel information, and send to described first gateway;

Described first gateway after receiving the renewal bearing request message that described indication recovers, the indication of the renewal bearing request message of recovering according to described indication, Open valve; Send the renewal bearing response message to described first mobile management entity; Obtain and upgrade downlink tunnel information, and send the downlink data packet of buffer memory according to described downlink tunnel information.

6. the professional method of hanging up as claimed in claim 5 is characterized in that, the described transmission to described first mobile management entity comprises in order to the message of recovering described packet switch domain service:

Send service request information to described first mobile management entity;

Or to described first mobile management entity transmission tracing section updating request message.

7. the professional method of hanging up as claimed in claim 6 is characterized in that the described radio bearer of setting up obtains downlink tunnel information and comprises:

Described first mobile management entity sends the initialization context request message to evolution base station, sets up the interface-free resources of radio bearer; Described evolution base station sends the initialization context response information of carrying described downlink tunnel information to described first mobile management entity;

Or described first mobile management entity is accepted message to described subscriber equipment transmission tracing section updating; Described subscriber equipment sends the tracing section updating that carries described downlink tunnel information to described first mobile management entity and finishes message, sets up the interface-free resources of radio bearer.

8. the professional method of hanging up as claimed in claim 5 is characterized in that described transmission downlink tunnel information comprises to described first gateway:

Send the renewal bearing request message that carries described downlink tunnel information to described first gateway;

Or described downlink tunnel information is carried in the renewal bearing request message that described indication recovers sends to described first gateway.

9. the professional method of hanging up as claimed in claim 5 is characterized in that the renewal bearing request message that described indication is hung up comprises: carry the professional renewal bearing request message of hanging up indication, perhaps carry the renewal bearing request message of valve-off indication;

The renewal bearing request message that described indication recovers comprises: carry the renewal bearing request message of business recovery indication, perhaps carry the renewal bearing request message of Open valve indication.

10. the professional method of hanging up as claimed in claim 5 is characterized in that described method also comprises:

Initiate strategy and charging control rule interaction flow to "Policy and Charging Rules Function;

And/or to the renewal bearing request message that grouped data network gateway transmission indication is hung up or indication recovers, so that described grouped data network gateway is to "Policy and Charging Rules Function initiation strategy and charging control rule interaction flow.

11. the professional method of hanging up as claimed in claim 4 is characterized in that the packet switch domain service of the described subscriber equipment of described recovery comprises:

Described subscriber equipment sends the tracing section updating request message to second mobile management entity;

After described second mobile management entity is received described tracing section updating request message, send context request message to described first mobile management entity;

Described first mobile management entity returns the context response information of the grouping commutative field service information of carrying hang-up to described second mobile management entity;

Described second mobile management entity sends the request that is used for recovering business, Open valve;

Described second mobile management entity and home subscriber server are initiated more new technological process of position, obtain the subscription data of described subscriber equipment, and to described home subscriber server registration;

Described second mobile management entity sends tracing section updating to described subscriber equipment and accepts message; The tracing section updating that receives described subscriber equipment transmission is finished message, radio bearer between foundation and the described subscriber equipment, finish from described tracing section updating and to obtain described downlink tunnel information the message, the renewal bearing request message that carries described downlink tunnel information is sent to described gateway;

Described first gateway obtains and upgrades downlink tunnel information, sends the downlink data packet of buffer memory.

12. the professional method of hanging up as claimed in claim 11 is characterized in that, described second mobile management entity sends and is used for the professional request of recovery, and Open valve comprises:

Described second mobile management entity sends the more new bearer request that is used for recovering business to described first gateway; Described first gateway is according to the indication of the renewal bearing request message of described indication recovery, Open valve.

13. the professional method of hanging up as claimed in claim 11 is characterized in that, described second mobile management entity sends and is used for the professional request of recovery, and Open valve comprises:

Described second mobile management entity sends the foundation that is used for recovering professional to second gateway and carries request; Described second gateway is according to the indication of the renewal bearing request message of described indication recovery, Open valve.

14. the professional method of hanging up as claimed in claim 13 is characterized in that described method also comprises:

Described second mobile management entity sends to described first mobile management entity and transmits data request information;

Described first mobile management entity sends to described first gateway and transmits data request information;

Described first gateway is forwarded to described second gateway with data in buffer;

Described second gateway receives the data of described forwarding.

15. the professional method of hanging up as claimed in claim 4 is characterized in that described method also comprises:

After the packet field network resource that keeps described subscriber equipment, start resource and keep timer, behind described timer expiry, if described subscriber equipment does not return packet field network and executes the task, then discharge described reservation of resource.

16. professional method of hanging up, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, it is characterized in that, comprising:

When the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity is after receiving beep-page message, send the callee function Indication message to described subscriber equipment, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication;

Or, when when the subscriber equipment that quarters at packet domain need be initiated circuit domain business, first mobile management entity is after receiving beep-page message, send the callee function Indication message to described subscriber equipment, after described subscriber equipment is received the callee function Indication message, send the professional request of hanging up to described first mobile management entity, described first mobile management entity is hung up request according to the business that receives, record traffic is hung up indication, the packet field network resource that keeps described subscriber equipment, send the renewal bearing request message that indication is hung up to first gateway, described first gateway is according to the indication of the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, record traffic is hung up indication;

17. the professional method of hanging up as claimed in claim 16 is characterized in that the downlink service data that described buffer memory sends to described subscriber equipment comprises:

18. the method that business as claimed in claim 16 is hung up is characterized in that, described first gateway records described hang-up indication and also comprises afterwards in the downlink tunnel information of the corresponding carrying of empty user equipment:

19. the professional method of hanging up as claimed in claim 16 is characterized in that described method also comprises:

20. the professional method of hanging up as claimed in claim 19 is characterized in that the packet switch domain service of the described subscriber equipment of described recovery comprises:

21. the professional method of hanging up as claimed in claim 20 is characterized in that, the described transmission to described first mobile management entity comprises in order to the message of recovering described packet switch domain service:

Send service request information to described first mobile management entity;

22. the professional method of hanging up as claimed in claim 20 is characterized in that the described radio bearer of setting up obtains downlink tunnel information and comprises:

23. the professional method of hanging up as claimed in claim 20 is characterized in that described transmission downlink tunnel information comprises to described first gateway:

24. the professional method of hanging up as claimed in claim 20 is characterized in that the renewal bearing request message that described indication is hung up comprises:

Carry the professional renewal bearing request message of hanging up indication;

Or carry the renewal bearing request message of valve-off indication;

The renewal bearing request message that described indication recovers comprises:

Carry the renewal bearing request message of business recovery indication;

Or carry the renewal bearing request message of Open valve indication.

25. the professional method of hanging up as claimed in claim 20 is characterized in that described method also comprises:

26. the professional method of hanging up as claimed in claim 19 is characterized in that the packet switch domain service of the described subscriber equipment of described recovery comprises:

Described second mobile management entity sends tracing section updating to described subscriber equipment and accepts message; The tracing section updating that receives described subscriber equipment transmission is finished message, radio bearer between foundation and the described subscriber equipment, finish from described tracing section updating and to obtain described downlink tunnel information the message, the renewal bearing request message that carries described downlink tunnel information is sent to described first gateway;

27. the professional method of hanging up as claimed in claim 26 is characterized in that, described second mobile management entity sends and is used for the professional request of recovery, and Open valve comprises:

28. the professional method of hanging up as claimed in claim 26 is characterized in that, described second mobile management entity sends and is used for the professional request of recovery, and Open valve comprises.

Described second mobile management entity sends the foundation that is used for recovering professional to second gateway and carries request;

Described second gateway is according to the indication of the renewal bearing request message of described indication recovery, Open valve.

29. the professional method of hanging up as claimed in claim 28 is characterized in that described method also comprises:

Described second gateway receives the data of described forwarding.

30. the professional method of hanging up as claimed in claim 19 is characterized in that described method also comprises:

31. the method for a business recovery, be applied to comprise in the communication system of at least one packet domain core network equipment and at least one circuit domain core net equipment, wherein packet domain core network equipment links to each other by interface with circuit domain core net equipment, described packet domain core network equipment comprises first mobile management entity, it is characterized in that described method comprises:

When carrying out circuit domain business in circuit-domain network, finishes by subscriber equipment, when inserting packet field network again, judge whether described subscriber equipment has packet switch domain service to be suspended, if having, then described subscriber equipment sends in order to recover the message of packet switch domain service to first mobile management entity;

Described first mobile management entity receive described in order to the message of recovering described packet switch domain service after, send the renewal bearing request message that indication recovers to first gateway; Set up radio bearer, obtain downlink tunnel information, and send to described first gateway;

32. the method for business recovery as claimed in claim 31 is characterized in that, the described transmission to first mobile management entity comprises in order to the message of recovering described packet switch domain service:

Send service request information to described first mobile management entity;

33. the method for business recovery as claimed in claim 31 is characterized in that, the described radio bearer of setting up obtains downlink tunnel information and comprises:

34. the method for business recovery as claimed in claim 31 is characterized in that, described transmission downlink tunnel information comprises to described first gateway:

35. the method for business recovery as claimed in claim 31 is characterized in that, the renewal bearing request message that described indication recovers comprises:

Carry the renewal bearing request message of business recovery indication;

Or carry the renewal bearing request message of Open valve indication.

36. the method for business recovery as claimed in claim 31 is characterized in that, the packet switch domain service of the described subscriber equipment of described recovery comprises:

Described subscriber equipment sends the tracing section updating request message to second mobile management entity; After described second mobile management entity is received described tracing section updating request message, obtain the packet switch domain service of described subscriber equipment to described first mobile management entity;

Radio bearer between described second mobile management entity foundation and the described subscriber equipment obtains downlink tunnel information, and the renewal bearing request message that carries described downlink tunnel information is sent to described first gateway;

37. the method for business recovery as claimed in claim 36 is characterized in that, described second mobile management entity sends the request that is used for recovering business, and Open valve comprises:

38. the method for business recovery as claimed in claim 36 is characterized in that, described second mobile management entity sends the request that is used for recovering business, and Open valve comprises:

39. the method for business recovery as claimed in claim 38 is characterized in that, described method also comprises:

Described second gateway receives the data of described forwarding.

40. the method as any described business recovery of claim 31 to 39 is characterized in that, described method also comprises:

And/or send the renewal bearing request message that indication recovers to grouped data network gateway, so that described grouped data network gateway is initiated strategy and charging control rule interaction flow to "Policy and Charging Rules Function.

41. a mobile management entity is characterized in that, described mobile management entity comprises:

First receiving element is used for receiving the more new bearer response that described gateway returns;

First judging unit, the business that is used for sending according to the subscriber equipment that receives is hung up request, judgement quarters at the subscriber equipment of packet domain need initiate circuit domain business, or be used for after sending the callee function Indication message to described subscriber equipment, judgement quarters at the subscriber equipment of packet domain need initiate circuit domain business.

42. mobile management entity as claimed in claim 41 is characterized in that, described mobile management entity also comprises: the unit is hung up in first order, is used for sending professional suspending command to evolution base station.

43. as claim 41 or 42 described mobile management entities, it is characterized in that described mobile management entity also comprises:

44. mobile management entity as claimed in claim 43 is characterized in that, the described first business recovery unit comprises:

45. mobile management entity as claimed in claim 44 is characterized in that, described second receiving element comprises:

46. mobile management entity as claimed in claim 44, described the 4th carrying is set up the unit and is comprised:

The unit is set up in the 5th carrying, be used for sending the initialization context request message to evolution base station, set up the interface-free resources of radio bearer, receive the initialization context response information that described evolution base station sends, from described initialization context response information, obtain described downlink tunnel information;

47. mobile management entity as claimed in claim 46 is characterized in that, described second transmitting element comprises:

48. mobile management entity as claimed in claim 43 is characterized in that, the described first business recovery unit comprises:

49. mobile management entity as claimed in claim 48 is characterized in that, the described first business recovery unit also comprises:

50. mobile management entity as claimed in claim 49 is characterized in that, described mobile management entity also comprises:

51. mobile management entity as claimed in claim 43 is characterized in that, described mobile management entity also comprises:

The first downlink tunnel information process unit is used for sending tracing section updating to described other subscriber equipmenies and accepts message; The tracing section updating that receives described other subscriber equipmenies transmissions is finished message, radio bearer between foundation and described other subscriber equipmenies, finish from described tracing section updating and to obtain downlink tunnel information the message, the renewal bearing request message that will carry described downlink tunnel information sends to described other gateways.

52. a mobile management entity is characterized in that, described mobile management entity comprises:

The second tracing section updating requesting processing is used for receiving the tracing section updating request message that subscriber equipment sends;

The second downlink tunnel information process unit is used for sending tracing section updating to described subscriber equipment and accepts message; The tracing section updating that receives described subscriber equipment transmission is finished message, radio bearer between foundation and the described subscriber equipment, finish from described tracing section updating and to obtain downlink tunnel information the message, the renewal bearing request message that carries described downlink tunnel information is sent to described gateway.

53. mobile management entity as claimed in claim 52 is characterized in that, described the 3rd business recovery unit comprises:

54. a gateway is characterized in that, described gateway comprises:

Hang up processing unit, be used for the indication according to the renewal bearing request message of described indication hang-up, the downlink tunnel information of the corresponding carrying of empty user equipment, valve-off records described hang-up indication;

Buffer unit is used for when ongoing packet switch domain service comprises downlink data the described packet switch domain service downlink data of buffer memory;

The 3rd transmits data cell, be used for receiving the data that evolution base station is transmitted, and the described data of buffer memory;

55. gateway as claimed in claim 54 is characterized in that, described gateway also comprises:

56. as claim 54 or 55 described gateways, it is characterized in that described gateway also comprises: