CN101296493B

CN101296493B - Resource releasing method and network appliance

Info

Publication number: CN101296493B
Application number: CN 200710097626
Authority: CN
Inventors: 吴问付; 毛国峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-04-24
Filing date: 2007-04-24
Publication date: 2013-02-13
Anticipated expiration: 2027-04-24
Also published as: CN101296493A

Abstract

Disclosed is a resource releasing method and network equipment. The method includes the following steps: when the need of releasing the resources occupied by load in a user interface path is determined, a network side modification process is launched; the indication information of releasing the resource occupied by load in the user interface path is transmitted by utilizing the network side modification process; the resource occupied by load in the user interface path is released on the basis of the transmission of the indication information. Or the method includes the following steps: when the need of releasing the resources occupied by load in a user interface path is determined, the network side is launched to activate the process by the user interface node of a core network; the resource occupied by load in the user interface path is released by utilizing the network side to activate the process. Or the method includes the following steps: when the need of releasing the resources occupied by load in a user interface path is determined, the node in the user interface path notifies the node of a core network control interface; the node of the core network control interface, after receiving the notice, launches the network side to activate the process to the user interface path; the resource occupied by load in the user interface path is released by utilizing the network side to activate the process. By adopting the method, the resource occupied by load in the user interface path can be released in time.

Description

Method for releasing resource and the network equipment

Technical field

The present invention relates to the network communications technology field, be specifically related to method for releasing resource and the network equipment.

Background technology

GPRS/UMTS (General Packet Radio Service, GPRS; Universal MobileTelecommunications System, universal mobile telecommunications system) in, RNC (Radio Network Controller, radio network controller) and SGSN (Serving GPRS Supporting Node, Serving GPRS Support Node) there is user plane path between, there is user plane path between SGSN and the GGSN (Gateway GPRS Supporting Node, Gateway GPRS Support Node).Above-mentionedly carry out the mechanism that user's face processes by SGSN and can be called Two Tunnels (two sections tunnels) mechanism.

In order to improve the data-handling capacity of UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system), a kind of new UMTS user's face treatment mechanism as shown in Figure 1.

Among Fig. 1, UMTS user's face is directly processed between RNC and GGSN, and does not need to process by SGSN.The mechanism that UMTS user's face is directly processed between RNC and GGSN can be called Direct Tunnel (directly tunnel) mechanism.

The inventor finds that there are the following problems at least in the prior art: the processing method when present user plane path is disconnected is: core network control surface entity SGSN initiates the deexcitation flow process, and the PDP Context on this user plane path is deleted.This processing method can be applicable to Two Tunnels mechanism.But, for Direct Tunnel mechanism, owing to user's face directly is based upon between RNC and the GGSN, so user plane path only is present between RNC and the GGSN.Like this, when user plane path was disconnected, SGSN did not also know the situation of user plane path.Processing method when therefore, present user plane path is disconnected can not be applicable to Direct Tunnel mechanism.

And, because SAE (System Architecture Evolution, system architecture evolution) the user's face in the system is directly at EUTRAN (Evolved UMTS Territorial Radio Access Network, the UMTS Terrestrial radio access network of evolution) and between the Serving Gateway (gateway) set up, user plane path only is present between EUTRAN and the Serving Gateway, so, when the user plane path between EUTRAN and the Serving Gateway is disconnected, core network control surface entity MME (Mobility Management Entity, Mobility Management Entity) does not also know the situation of user plane path.Processing method when therefore, present user plane path is disconnected can not be applicable to the SAE system equally.

Summary of the invention

Embodiment of the present invention provides method for releasing resource and the network equipment, the resource that in time carrying takies on the releasing user face path.

A kind of method for releasing resource that embodiment of the present invention provides comprises:

When determining to need releasing user face path to carry the resource that takies, initiate the network side modification process;

Utilize the indication information of the shared resource of carrying on the described network side modification process transmission releasing user face path, and the resource shared according to carrying on the described indication information releasing user face path.

A kind of network equipment that embodiment of the present invention provides is the core net user face nodes, and this network equipment comprises:

The first initiation module: be used for when determining to need releasing user face path to carry the resource that takies, initiating the network side modification process;

The first transport module: be used for after the first initiation module is initiated the network side modification process, utilize the indication information of the shared resource of carrying on the described network side modification process transmission releasing user face path;

The first release module: be used for after the first initiation module is initiated the network side modification process, carry out the operation of carrying shared resource on the releasing user face path.

The another kind of network equipment that embodiment of the present invention provides is core network control surface node, and this network equipment comprises:

The second initiation module: be used for after the notice that the node transmission that receives user plane path comes, for described user plane path, initiating the network side modification process;

The second transport module: be used for after the second initiation module is initiated the network side modification process, utilize the indication information of the shared resource of carrying on the described network side modification process transmission releasing user face path;

The second release module: be used for after the second initiation module is initiated the network side modification process, initiate RAB and discharge flow process, discharge RAB.

The another kind of method for releasing resource that embodiment of the present invention provides comprises:

When determining to need releasing user face path to carry the resource that takies, the core net user face nodes is initiated network side deexcitation flow process;

Utilize described network side deexcitation flow process to discharge the shared resource of carrying on the described user plane path;

Perhaps described method comprises:

When determining to need releasing user face path to carry the resource that takies, the node notice core network control surface node in the described user plane path;

Core network control surface node for described user plane path, is initiated network side deexcitation flow process after receiving described notice;

Utilize the shared resource of carrying on the described network side deexcitation flow process releasing user face path.

The another kind of network equipment that embodiment of the present invention provides is the core net user face nodes, and this network equipment comprises:

The 3rd initiation module: be used for when determining to need releasing user face path to carry the resource that takies, initiating network side deexcitation flow process;

The 3rd transport module: be used for after the 3rd initiation module is initiated network side deexcitation flow process, sending the message of the shared resource of carrying on the releasing user face path;

The first release module: be used for after the 3rd initiation module is initiated network side deexcitation flow process, carrying out the operation of carrying shared resource on the releasing user face path.

Description by technique scheme as can be known, by utilizing the network side modification process, the resource that in time carrying takies on the releasing user face path; Embodiment of the present invention also can be initiated network side deexcitation flow process by the core net user face nodes and come the resource that carrying takies on the timely releasing user face path; Embodiment of the present invention can also be by notifying core network control surface node, coming the resource that carrying takies on the timely releasing user face path by the mode of core network control surface node initiation network side deexcitation flow process.Embodiment of the present invention has improved the flexibility that resource discharges, and, can be applicable to Direct Tunnel mechanism.

Description of drawings

Fig. 1 is UMTS user's face treatment mechanism schematic diagram of prior art;

Fig. 2 is the resource release flow schematic diagram one according to embodiment of the present invention;

Fig. 3 is the resource release flow schematic diagram two according to embodiment of the present invention;

Fig. 4 is the resource release flow schematic diagram three according to embodiment of the present invention;

Fig. 5 is the resource release flow schematic diagram four according to embodiment of the present invention;

Fig. 6 is the resource release flow schematic diagram five according to embodiment of the present invention;

Fig. 7 is the resource release flow schematic diagram six according to embodiment of the present invention;

Fig. 8 is the resource release flow schematic diagram seven according to embodiment of the present invention;

Fig. 9 is the resource release flow schematic diagram eight according to embodiment of the present invention;

Figure 10 is the resource release flow schematic diagram nine according to embodiment of the present invention;

Figure 11 is the resource release flow schematic diagram ten according to embodiment of the present invention;

Figure 12 is the resource release flow schematic diagram 11 according to embodiment of the present invention;

Figure 13 is the resource release flow schematic diagram 12 according to embodiment of the present invention;

Figure 14 is the network equipment schematic diagram one according to embodiment of the present invention;

Figure 15 is the network equipment schematic diagram two according to embodiment of the present invention;

Figure 16 is the network equipment schematic diagram three according to embodiment of the present invention.

Embodiment

Embodiment of the present invention can utilize the network side modification process to realize the resource that carrying takies on the releasing user face path, also can utilize network side deexcitation flow process to realize the resource that carrying takies on the releasing user face path.When utilizing network side deexcitation flow process to realize carrying the resource that takies on the releasing user face path, embodiment of the present invention and the difference technical characterictic of the implementation procedure of the resource that carrying takies on the deexcitation flow process releasing user face path that utilizes of the prior art comprise: embodiment of the present invention is initiated the deexcitation flow process by the core net user face nodes.Perhaps distinguishing technical characterictic comprises: embodiment of the present invention is initiated the deexcitation flow process by the notice of the node in user plane path core network control surface node, and namely core network control surface node is after receiving notice, initiation deexcitation flow process.

Embodiment of the present invention also can the above-mentioned network side modification process of unfavorable usefulness or deexcitation flow process, but utilizes the flow process that redefines to realize the resource that carrying takies on the releasing user face path.In the flow process that this redefines, the core net user face nodes is in the situations such as user plane path breaks, need to initiatively carry out the operation of the shared resource in releasing user face path, and the indication information of the resource that carrying takies on the transmission releasing user face path, the node that receives indication information carries out the operation of the resource that carrying takies on the releasing user face path.The indication information here can be carried in the existing message, also can be carried in the message of new definition.

In embodiment of the present invention, user plane path is disconnected can to cause the resource that carrying takies on the releasing user face path; Other reason such as regulatory requirement etc. also can cause the resource that carrying takies on the releasing user face path.Embodiment of the present invention does not limit the concrete reason of the resource that causes that carrying takies on the releasing user face path.

The below is to utilizing the network side modification process to realize that the method for the shared resource in releasing user face path describes.

Need releasing user face path to carry in the situation of the resource that takies disconnected grade of user plane path, initiate the network side modification process, i.e. trigger network side modification process.The main body of initiating the network side modification process can be the core net user face nodes, also can be core network control surface node.When core network control surface node was node in the user plane path, core network control surface node can initiatively be initiated the network side modification process in the situations such as user plane path is disconnected.When core network control surface node did not belong to node in the user plane path, core network control surface node can be initiated the network side modification process according to the notice that receives, and this initiation operation can be called passive initiation operation.The main body of notice core network control surface node can be the core net user face nodes, also can be radio network controller, can also be the nodes such as Serving Gateway, embodiment of the present invention is the concrete manifestation form of the main body of limitation notification core network control surface node not.

In initiating network side modification process process, the main body of initiation network side modification process can not carried out the carrying attribute information judgement on the user plane path, and directly initiates the network side modification process; Also can carry out the carrying attribute information judgement on the user plane path, and only the user plane path with predefined type carrying attribute be initiated the network side modification process.For example, in the situation that initiate the network side modification process by the core net user face nodes, the core net user face nodes can be judged the carrying attribute on the user plane path, when the carrying attribute information on judging user plane path is predefined type, the core net user face nodes is initiated the network side modification process, when the carrying attribute information on judging user plane path was not predefined type, the core net user face nodes was not initiated the network side modification process.Again for example, in the situation that initiate the network side modification process by core network control surface node, during the notice of core network control surface node node in receiving user plane path, core network control surface node can be judged the carrying attribute on the user plane path, when the carrying attribute information on judging user plane path is predefined type, core network control surface node is initiated the network side modification process, when the carrying attribute information on judging user plane path was not predefined type, core network control surface node was not initiated the network side modification process.

For the GPRS/UMTS system, the carrying attribute information on the above-mentioned user plane path can be the traffic type information of PDP Context use.For the SAE system, the carrying attribute information on the above-mentioned user plane path can be bearer types information.Above-mentioned predefined type can determine according to the network actual conditions, can comprise such as predefined type in the professional and session transmissions class business of flow transmission class one or two can comprising that also GBR (Guaranteed Bit Rate guarantees bit rate) carries.For example, comprise under flow transmission class business and the session transmissions class service conditions at predefined type, when the PDP Context on the user plane path has used the flow transmission class professional, need to initiate the network side modification process; When the PDP Context on the user plane path has used the session transmissions class professional, also need to initiate the network side modification process.Embodiment of the present invention is the concrete manifestation form of the carrying attribute information on the limited subscriber face path not, does not also limit the concrete manifestation form of predefined type.

After determining to initiate the network side modification process, need the indication information of the shared resource of carrying on the transmission releasing user face path.The node of above-mentioned indication information process can carry out the operation of the shared resource in corresponding releasing user face path.The node of indication information process can comprise the node of initial this indication information of transmission.

In the situation that the core net user face nodes is initiated the network side modification process, the node of indication information process carry out on the corresponding releasing user face path the shared resource operation of carrying process can for: at first, the core net user face nodes keeps the PDP/ bearer context on the user plane path, and discharges the shared resource of this PDP/ bearer context; Then, the core net user face nodes carries the modification request of the indication information of the shared resource of carrying on the releasing user face path as revising the PDP Context request to the core network control surface node transmission; Core network control surface node is after receiving the request of modification, determine the shared resource of carrying on the needs releasing user face path according to the indication information of the shared resource of carrying on the releasing user face path of revising in the request, afterwards, core network control surface node is initiated RAB and is discharged flow process, to discharge RAB, such as the RAB between releasing user equipment and the radio network controller.In discharging the RAB process, RNC can be with the RAB context that uses on this user plane path, and the resource that the RAB context takies all discharges.Subscriber equipment can keep the PDP/ bearer context that uses on this user plane path, also can not keep the PDP/ bearer context that uses on this user plane path.Equally, the core net user face nodes also can not keep the PDP/ bearer context that uses on this user plane path.

In above-mentioned description for core net user face nodes initiation network side modification process situation, the core net user face nodes has kept the PDP/ bearer context that uses on the user plane path, but the shared resource of this user plane path has discharged, be that the shared resource of PDP/ bearer context of using on the user plane path has discharged, the core net user face nodes can record the information that the shared resource of this PDP/ bearer context has discharged, this information can be arranged on outside the PDP/ bearer context, also can be arranged in the PDP/ bearer context, be set to zero such as the maximum bitrate in the PDP Context/guarantee bit rate; In PDP Context, increase for another example resource and discharge indicating bit information etc.Embodiment of the present invention does not limit the concrete manifestation form of the information that the shared resource of core net user face nodes record PDP/ bearer context discharged.

In above-mentioned description for core net user face nodes initiation network side modification process situation, subscriber equipment has kept the PDP/ bearer context that uses on the user plane path, but the shared resource of this PDP/ bearer context has discharged, subscriber equipment can record the information that the shared resource of this PDP/ bearer context has discharged, this information can be arranged on outside the PDP/ bearer context, also can be arranged in the PDP/ bearer context concrete as above-mentioned description for the core net user face nodes.

In the situation that core network control surface node is initiated the network side modification process, the node of indication information process carry out on the corresponding releasing user face path the shared resource operation of carrying process can for: at first, core network control surface node is carried at the indication information of the shared resource of carrying on the releasing user face path in the request of modification, and sends this modification request to the core net user face nodes.The core net user face nodes receives the request of modification, the core net user face nodes carries the indication information of the shared resource of releasing user face path carrying in judging the request of modification after, keep the PDP/ bearer context that uses on this user plane path, and discharge the shared resource of this PDP/ bearer context.Then, core network control surface node is initiated RAB and is discharged flow process, to discharge RAB, such as the RAB between releasing user equipment and the radio network controller.In discharging the RAB process, subscriber equipment can keep the PDP/ bearer context that uses on this user plane path.

In the above-mentioned description of initiating network side modification process situation for core network control surface node, core network control surface node is to make first the shared resource of carrying on the core net user face nodes releasing user face path, initiate RAB again and discharge flow process.In fact, the sequencing that carries shared resource and initiation RAB release flow process on the core net user face nodes releasing user face path can be adjusted, also can carry out simultaneously.

In above-mentioned description for core network control surface node initiation network side modification process situation, all kept the PDP/ bearer context that uses on the user plane path in core net user face nodes and the subscriber equipment, core net user face nodes and subscriber equipment can all adopt the method for describing in the above-mentioned execution mode to record the information that the shared resource of this PDP/ bearer context has discharged, and no longer are repeated in this description at this.

The below is to utilizing network side deexcitation flow process to realize that wherein a kind of method of the shared resource in releasing user face path describes.

Need releasing user face path to carry in the situation of the resource that takies disconnected grade of user plane path, the core net user face nodes is initiated network side deexcitation flow process.The core net user face nodes sends deletion PDP Context/carrying request to core network control surface node, core network control surface node is after receiving deletion PDP Context/carrying request, the unit deletion PDP/ bearer contexts such as control subscriber equipment, core net user face nodes are to discharge the shared resource of this carrying.

The below is to utilizing network side deexcitation flow process to realize that the another kind of method of the shared resource in releasing user face path describes.

Need releasing user face path to carry in the situation of the resource that takies disconnected grade of user plane path, node notice core network control surface node in the user plane path is such as core net user face nodes or radio network controller or EUTRAN notice core network control surface node etc.This notice can be known for the path is open close request.The information that can comprise user plane path two end nodes in this notice is such as the IP address that can comprise the IP address of core net user face nodes and udp port information, radio network controller/EUTRAN in the notice and udp port information etc.Core network control surface node can also obtain by alternate manner the information of user plane path endpoint node.After core network control surface node received notice, knowing needed the resource that carrying takies on the releasing user face path.For carrying on this user plane path, core network control surface node is initiated network side deexcitation flow process.Core network control surface node sends deletion PDP Context/carrying request to the core net user face nodes, and the core net user face nodes is deleted the PDP/ bearer context that uses on this user plane path after receiving deletion PDP Context/carrying request.Core network control surface node sends deexcitation PDP Context/carrying request to subscriber equipment, after subscriber equipment receives deexcitation PDP Context/carrying request, delete the PDP/ bearer context that uses on this user plane path, to discharge the shared resource of carrying on this user plane path.

In the description of the respective embodiments described above, core network control surface node can be SGSN, also can be MME.The core net user face nodes can be GGSN, also can be Serving Gateway.

The below is disconnected take the user path to cause that carrying takies on the releasing user face path resource describes as example, the method for releasing resource that by reference to the accompanying drawings embodiment of the present invention provided.

The core net user entity is initiated the network side modification process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 2, accompanying drawing 3.

Among Fig. 2, the user plane path interrupt between step 1, RNC and the GGSN.

The PDP Context that uses on step 2, the user plane path of GGSN to interrupt is judged, if judging PDP Context uses background (background) transmission class business or uses mutual (interactive) transmission class professional, then do not initiate the network side modification process, the PDP Context that uses on this user plane path is not made amendment; If judging PDP Context uses stream (streaming) transmission class business or uses session (conversational) transmission class professional, then GGSN initiates the network side modification process, GGSN keeps the PDP Context that uses on this user plane path, but discharge the shared resource of this PDP Context, GGSN sends to SGSN and revises the PDP Context request message.After SGSN receives and revises the PDP Context request message, return modification PDP Context response message to GGSN.

The operation that GGSN initiates after the network side modification process can comprise following two kinds:

1, GGSN discharges the shared resource of PDP Context, and the maximum bitrate in the PDP Context (maximumbit rate) is set to 0kbit/s.GGSN sends to SGSN and revises the PDP Context request message, and the maximum bitrate in the qos parameter of modification PDP Context request message is set to 0, and SGSN discharges the resource that PDP Context takies with indication.

2, flag bit: RRI of increase (Resource Release Indication, resource discharges indication) in PDP Context, RRI can be used for representing that the shared resource of PDP Context is reservation or has discharged.Value such as RRI is True, shows that then the shared resource of PDP Context is released; The value of RRI is False, shows that then the shared resource of PDP Context also keeps.GGSN discharges the shared resource of PDP Context, and the value of the RRI field in the PDP Context is set to True, and then, GGSN sends to SGSN and revises the PDP Context request message.Revise in the PDP Context request message and carry RRI, and the value of RRI is True.

Step 3, SGSN are after 0kbit/s or the value of judging the RRI in the modification PDP Context request message are True receiving the maximum bitrate of revising the PDP Context request message and judging in the modification PDP Context request message, SGSN initiates RAB and discharges flow process, to discharge the RAB between UE and the RNC.

In the step 3 of Fig. 2, UE can judge the type of service that this PDP Context uses, and also can the type of service of this PDP Context use not judged.When type of service was judged, UE had used background transmission class professional or when having used mutual transmission class professional judging this PDP Context, can this PDP Context not made amendment, and does not also discharge the resource that this PDP Context takies.UE has used the flow transmission class professional or when having used the session transmissions class professional judging this PDP Context, can keep this PDP Context, but discharge the shared resource of this PDP Context.

The processing mode that UE keeps PDP Context can have following two kinds:

1, the maximum bitrate in the UE PDP Context is set to 0kbit/s.

2, the RRI field in the UE PDP Context is set to True.

Deterministic process to type of service in the step 2 of above-mentioned Fig. 2 and the step 3 can exist simultaneously; Also can only in step 2, judge type of service, not carry out the deterministic process of type of service in step 3; Can also only in step 3, judge type of service, in step 2, not carry out the deterministic process of type of service.

In the follow-up business implementation procedure, if GGSN receives downlink data packet and has discharged according to bearing resource corresponding to this downlink data packet of INFORMATION DISCOVERY such as the maximum bitrate in PDP Context corresponding to this packet or RRI, then GGSN can be by flow processs such as initiation bearing modifications, to recover this bearing resource.If UE need to send the upstream data bag and discharge according to bearing resource corresponding to this upstream data bag of INFORMATION DISCOVERY such as the maximum bitrate in PDP Context corresponding to this packet or RRI, then UE can recover this bearing resource by initiating the flow processs such as bearing modification.The bearing resource here is the resource that the PDP Context of foregoing description takies.The specific implementation process of recovering bearing resource here is not described in detail.

Among Fig. 3, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 2, Serving Gateway judge the bearer types on the user plane path of interrupt, if judge bearer types and be non-GBR carrying (Non-GBR bearer), then do not initiate the network side modification process, the bearer context that uses on this user plane path is not made amendment; If judge bearer types and be GBR carrying (GBRbearer), then Serving Gateway initiates the network side modification process, Serving Gateway keeps the bearer context that uses on this user plane path, but discharge the shared resource of this bearer context, Serving Gateway sends to MME and revises bearing request message.MME returns the modification bearing response message to Serving Gateway after receiving and revising bearing request message.

The operation that Serving Gateway initiates after the network side modification process can comprise following two kinds:

1, the shared resource of Serving Gateway releasing bearing, and the GBR in the bearer context is set to 0kbit/s.Serving Gateway sends to MME and revises bearing request message, and the bit rate that guarantees in the qos parameter of modification bearing request message is set to 0, with the resource of indicating MME releasing bearing context to take.

2, in bearer context, increase flag bit a: RRI.RRI can be used for representing that the shared resource of bearer context is reservation or has discharged.Value such as RRI is True, shows that then the shared resource of bearer context is released; The value of RRI is False, shows that then the shared resource of bearer context also keeps.The shared resource of Serving Gateway releasing bearing context, and the value of the RRI field in the bearer context is set to True, then, Serving Gateway sends to MME and revises bearing request message.Revise in the bearing request message and carry RRI, and the value of RRI is True.

Step 3, MME are after 0kbit/s or the value of judging the RRI in the modification bearing request message are True receiving the bit rate that guarantees of revising bearing request message and judging in the modification bearing request message, MME initiates RAB and discharges flow process, to discharge the RAB between UE and the EUTRAN.

In the step 3 of Fig. 3, UE can judge the bearer types that this bearer context uses, and also can the bearer types of this bearer context use not judged.When bearer types was judged, UE can not make amendment to this bearer context when judging this bearer context and used non-GBR carrying, does not discharge the resource that this bearer context takies yet.UE has used GBR when carrying judging this bearer context, can keep this bearer context, but discharge the shared resource of this bearer context.

The processing mode that UE keeps bearer context can have following two kinds:

1, the bit rate that guarantees in the UE bearer context is set to 0kbit/s.

2, the RRI field in the UE bearer context is set to True.

Deterministic process to bearer types in the step 2 of above-mentioned Fig. 3 and the step 3 can exist simultaneously; Also can only in step 2, judge bearer types, not carry out the deterministic process of bearer types in step 3; Can also only in step 3, judge bearer types, in step 2, not carry out the deterministic process of bearer types.

In the follow-up business implementation procedure, if Serving Gateway receives downlink data packet and has discharged according to bearing resource corresponding to this downlink data packet of INFORMATION DISCOVERY such as the assurance bit rate in bearer context corresponding to this packet or RRI, then Serving Gateway can be by flow processs such as initiation bearing modifications, to recover this bearing resource.If UE need to send the upstream data bag and discharge according to bearing resource corresponding to this upstream data bag of INFORMATION DISCOVERY such as the assurance bit rate in bearer context corresponding to this packet or RRI, then UE can recover this bearing resource by initiating the flow processs such as bearing modification.The bearing resource here is the resource that the bearer context of foregoing description takies.The specific implementation process of recovering bearing resource here is not described in detail.

Utilize that user plane path is open close knows request message notice core network control surface entity, the core network control surface entity is initiated the network side modification process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 4, accompanying drawing 5.

Among Fig. 4, the user plane path interrupt between step 1, RNC and the GGSN.

Step 2, GGSN or RNC send to SGSN that user plane path is open close knows request message, can carry the IP address of user plane path institute opposite ends node of interrupt and udp port number in the request message.After SGSN receives that user plane path is open close and knows request message, reply to GGSN or RNC that user plane path is open close knows response message.

The PDP Context that uses on step 3, the user plane path of SGSN to interrupt is judged, if judging PDP Context uses background transmission class business or uses mutual transmission class professional, then do not initiate the network side modification process, the PDP Context that uses on this user plane path is not made amendment; Use flow transmission class business or use the session transmissions class professional if judge PDP Context, then SGSN initiates the network side modification process, and SGSN sends modification PDP Context request message to GGSN.After GGSN receives and revises the PDP Context request message, return modification PDP Context response message to SGSN.

The operation that SGSN initiates after the network side modification process can comprise following two kinds:

1, SGSN sends to GGSN and revises the PDP Context request message, and the maximum bitrate in the qos parameter of modification PDP Context request message is set to 0, and GGSN discharges the resource that PDP Context takies with indication.GGSN discharge the shared resource of PDP Context, and the maximum bitrate in the PDP Context of its storage is set to 0kbit/s receiving after to carry maximum bitrate be 0 modification PDP Context request message.GGSN returns to SGSN and revises the PDP Context response message.

2, increase flag bit a: RRI.RRI can be used for representing that the shared resource of PDP Context is reservation or has discharged.Value such as RRI is True, shows that then the shared resource of PDP Context is released; The value of RRI is False, shows that then the shared resource of PDP Context also keeps.SGSN sends to GGSN and revises the PDP Context request message, and the RRI that revises the PDP Context request message is set to True, and GGSN discharges the resource that PDP Context takies with indication.GGSN receive carry the modification PDP Context request message that RRI is True after, discharge the shared resource of PDP Context, and the RRI in the PDP Context of its storage is set to True.GGSN returns to SGSN and revises the PDP Context response message.

Step 4, SGSN initiate RAB and discharge flow process, to discharge the RAB between UE and the RNC after receiving modification PDP Context response message.

In the step 4 of Fig. 4, UE can judge the type of service that this PDP Context uses, and also can the type of service of this PDP Context use not judged.The processing mode that UE keeps PDP Context can have two kinds, and SGSN, UE judge whether to exist simultaneously to type of service, and content such as the above-mentioned description for Fig. 2 such as recovering bearing resource in the follow-up business implementation procedure, no longer is repeated in this description at this.

Among Fig. 5, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 2, Serving Gateway or EUTRAN send to MME that user plane path is open close knows request message, can carry the IP address of user plane path institute opposite ends node of interrupt and udp port number in the request message.After MME receives that user plane path is open close and knows request message, reply to Serving Gateway or EUTRAN that user plane path is open close knows response message.

The bearer context that uses on step 3, the user plane path of MME to interrupt is judged, is non-GBR carrying if judge bearer context, does not then initiate the network side modification process, the bearer context that uses on this user plane path is not made amendment; If judge bearer context and be the GBR carrying, then MME initiates the network side modification process, and MME sends to Serving Gateway and revises bearing request message.Serving Gateway returns the modification bearing response message to MME after receiving and revising bearing request message.

The operation that MME initiates after the network side modification process can comprise following two kinds:

1, MME sends to Serving Gateway and revises bearing request message, and the bit rate that guarantees in the qos parameter of modification bearing request message is set to 0, with the resource of indicating Serving Gateway releasing bearing context to take.ServingGateway receive carry guarantee that bit rate is 0 modification bearing request message after, the resource that the releasing bearing context is shared, and the bit rate that guarantees in the bearer context of its storage is set to 0kbit/s.Serving Gateway returns the modification bearing response message to MME.

2, increase flag bit a: RRI.RRI can be used for representing that the shared resource of bearer context is reservation or has discharged.Value such as RRI is True, shows that then the shared resource of bearer context is released; The value of RRI is False, shows that then the shared resource of bearer context also keeps.MME sends to Serving Gateway and revises bearing request message, and the RRI that revises bearing request message is set to True, with the resource of indicating Serving Gateway releasing bearing context to take.Serving Gateway receive carry the modification bearing request message that RRI is True after, the resource that the releasing bearing context is shared, and the RRI in the bearer context of its storage is set to True.Serving Gateway returns the modification bearing response message to MME.

Step 4, MME initiate RAB and discharge flow process after receiving the modification bearing response message, to discharge the RAB between UE and the EUTRAN.

In the step 4 of Fig. 5, UE can judge the type of this carrying, also can the type of this carrying not judged.The processing mode that UE keeps bearer context can have two kinds, and MME, UE judge whether to exist simultaneously to bearer types, and content such as the above-mentioned description for Fig. 3 such as recovering bearing resource in the follow-up business implementation procedure, no longer is repeated in this description at this.

Utilize RAB Release message informing core network control surface entity, the core network control surface entity is initiated the network side modification process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 6, accompanying drawing 7.

Among Fig. 6, the user plane path interrupt between step 1, RNC and the GGSN.

Step 2, RNC send RAB releasing request message to SGSN, and the cause value that carries in the request message can be User Plane Path Failure (user plane path interruption).

The operation that SGSN initiates after the network side modification process can comprise two kinds, and the description among the particular content of two kinds of operations such as above-mentioned Fig. 4 is not repeated.

In the step 4 of Fig. 6, UE can judge the type of service that this PDP Context uses, and also can the type of service of this PDP Context use not judged.The processing mode that UE keeps PDP Context can have two kinds, and SGSN, UE judge whether to exist simultaneously to type of service, and content such as the above-mentioned description for Fig. 2 such as recovering bearing resource in the follow-up business implementation procedure, no longer is repeated in this description at this.

Among Fig. 7, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 2, EUTRAN send RAB releasing request message to MME, and the cause value that carries in the request message can be User Plane Path Failure.

The operation that MME initiates after the network side modification process can comprise two kinds, and the description among the particular content of two kinds of operations such as above-mentioned Fig. 5 is not repeated

In the step 4 of Fig. 7, UE can judge the type of this carrying, also can the type of this carrying not judged.The processing mode that UE keeps bearer context can have two kinds, and MME, UE judge whether to exist simultaneously to bearer types, and content such as the above-mentioned description for Fig. 3 such as recovering bearing resource in the follow-up business implementation procedure, no longer is repeated in this description at this.

The core net user entity is initiated network side deexcitation flow process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 8, accompanying drawing 9.

Among Fig. 8, the user plane path interrupt between step 1, RNC and the GGSN.

Step 2, GGSN initiate network side deexcitation flow process for the user plane path of interrupt.GGSN sends deletion PDP Context request message to SGSN.

Step 3, SGSN send deexcitation PDP Context request message to UE after receiving deletion PDP Context request message.UE deletes the PDP Context that uses on this user plane path according to the deexcitation PDP Context request message that receives, and returns to activation PDP Context response message to SGSN.

Step 4, SGSN send deletion PDP Context response message to GGSN after receiving deexcitation PDP Context response message.GGSN deletes the PDP Context that uses on this user plane path according to the deletion PDP Context response message that receives.

Step 5, SGSN initiate RAB and discharge flow process, to discharge the RAB between UE and the RNC.

In above-mentioned description for Fig. 8, the operation of GGSN deletion PDP Context also can be before UE deletes PDP Context.

Among Fig. 9, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 2, Serving Gateway initiate network side deexcitation flow process for the user plane path of interrupt.Serving Gateway sends the deleting bearing request message to MME.

After step 3, MME receive the deleting bearing request message, send the deexcitation bearing request message to UE.UE deletes this bearer context according to the deexcitation bearing request message that receives, and returns to the activation bearing response message to MME.

Step 4, MME send the deleting bearing response message to Serving Gateway after receiving the deexcitation bearing response message.Serving Gateway deletes this bearer context according to the deleting bearing response message that receives.

Step 5, MME initiate RAB and discharge flow process, to discharge the RAB between UE and the EUTRAN.

In above-mentioned description for Fig. 9, the contextual operation of Serving Gateway deleting bearing also can be before UE deleting bearing context.

Utilize that user plane path is open close knows request message notice core network control surface entity, the core network control surface entity is initiated network side deexcitation flow process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 10, accompanying drawing 11.

Among Figure 10, the user plane path interrupt between step 1, RNC and the GGSN.

Step 3, SGSN initiate network side deexcitation flow process, and SGSN sends deletion PDP Context request message to GGSN.GGSN deletes the PDP Context that uses on this user plane path after receiving deletion PDP Context request message.GGSN returns deletion PDP Context response message to SGSN.

Step 4, SGSN send deexcitation PDP Context request message to UE after receiving deletion PDP Context response message.UE deletes the PDP Context that uses on this user plane path according to the deexcitation PDP Context request message that receives, and returns to activation PDP Context response message to SGSN.

In above-mentioned description for Figure 10, the operation of GGSN deletion PDP Context also can be after UE deletes PDP Context.

Among Figure 11, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 3, MME initiate network side deexcitation flow process for the user plane path of interrupt.MME sends the deleting bearing request message to ServingGateway.Serving Gateway deletes this bearer context according to the deleting bearing request message that receives.Serving Gateway sends the deleting bearing response message to MME.

After step 4, MME receive the deleting bearing response message, send the deexcitation bearing request message to UE.UE deletes this bearer context according to the deexcitation bearing request message that receives, and returns to the activation bearing response message to MME.

After step 5, MME receive the deexcitation bearing response message, initiate RAB and discharge flow process, to discharge the RAB between UE and the EUTRAN.

In above-mentioned description for Figure 11, the contextual operation of Serving Gateway deleting bearing also can be after UE deleting bearing context.

Utilize RAB Release message informing core network control surface entity, the core network control surface entity is initiated network side deexcitation flow process, and the flow process signal of the shared resource of PDP/ bearer context of using on the user plane path with the release interrupt is shown in accompanying drawing 12, accompanying drawing 13.

Among Figure 12, the user plane path interrupt between step 1, RNC and the GGSN.

Step 2, RNC send RAB releasing request message to SGSN, and the cause value that carries in the request message can be User Plane Path Failure.

Step 3, SGSN initiate network side deexcitation flow process after receiving the RAB releasing request message that cause value is User Plane Path Failure, SGSN sends deletion PDP Context request message to GGSN.GGSN deletes the PDP Context that uses on this user plane path after receiving deletion PDP Context request message.GGSN returns deletion PDP Context response message to SGSN.

In above-mentioned description for Figure 12, the operation of GGSN deletion PDP Context also can be after UE deletes PDP Context.

Among Figure 13, the user plane path interrupt between step 1, EUTRAN and the Serving Gateway.

Step 3, MME initiate network side deletion flow process, and MME sends the deleting bearing request message to Serving Gateway.Serving Gateway deletes this bearer context according to the deleting bearing request message that receives.Serving Gateway sends the deleting bearing response message to MME.

Step 4, MME are receiving the deleting bearing response message, send the deexcitation bearing request message to UE.UE deletes the bearer context that uses on this user plane path according to the deexcitation bearing request message that receives, and returns to the activation bearing response message to MME.

Step 5, MME initiate RAB and discharge flow process, to discharge the RAB between UE and the RNC.

In the above-mentioned method for releasing resource of describing by reference to the accompanying drawings, all only be present between Access Network and the core net user face nodes as example take user plane path and be described, but the method for releasing resource that embodiment of the present invention provides also can be used for user plane path and be present in situation between Access Network, core network control surface node and the core net user face nodes, comes the shared resource in releasing user face path etc. such as core network control surface node by initiating the network side modification process.The specific implementation process is not described in detail at this.

Below in conjunction with accompanying drawing the network equipment that embodiment of the present invention provides is described.

A kind of network equipment that embodiment of the present invention provides as shown in Figure 14.The network equipment among Figure 14 can be the core net user face nodes, is GGSN such as this network equipment, perhaps is Serving Gateway etc.This network equipment comprises the first initiation module, the first transport module and the first release module.

The first initiation module is mainly used in initiating the network side modification process when determining to need releasing user face path to carry the resource that takies.The first initiation module can when user plane path is disconnected, be initiated the network side modification process; Also can issue the network side modification process in situations such as regulatory requirements.The first initiation module can not carry out the carrying attribute information judgement on the user plane path, and directly initiate the network side modification process in initiating network side modification process process; Also can carry out the carrying attribute information judgement on the user plane path, and only the user plane path with predefined type carrying attribute be initiated the network side modification process.

Only the user plane path with predefined type carrying attribute is initiated in the situation of network side modification process at the first initiation module, the first initiation module further comprises: judge submodule and initiate submodule.

Judge submodule is mainly used in judging whether the carrying attribute information on the user plane path is predefined type when determining to need releasing user face path to carry the resource that takies, and the output judged result.For example, the PDP Context that uses on the user plane path of judgement submodule to interrupt is judged, and export the business information of PDP Context use, PDP Context use background is transmitted the class business or class business or use flow transmission class business or use session transmissions class business are transmitted in use alternately as exporting.Again for example, the judgement submodule is judged the bearer types on the user plane path of interrupt, and output bearer types information, is non-GBR carrying such as the output bearer types, and perhaps exporting bearer types is GBR carrying etc.The operation that the judgement submodule carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

Initiating submodule is mainly used in initiating the network side modification process when judging that submodule is judged carrying attribute information on the user plane path and is predefined type.For example, judging that submodule judges PDP Context and use background transmission class professional or use mutual transmission class professional, then do not initiate the network side modification process; Judging that submodule is judged PDP Context use flow transmission class business or use session transmissions class is professional, then initiate the network side modification process.Again for example, be non-GBR carrying judging that submodule is judged bearer types, then do not initiate the network side modification process; Judging bearer types at the judgement submodule is the GBR carrying, then initiates the network side modification process.The operation that the initiation submodule carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The first transport module is mainly used in after the first initiation module is initiated the network side modification process, utilizes the indication information of the shared resource of carrying on the network side modification process transmission releasing user face path.For example the first transport module sends and revises the PDP Context request message, and the maximum bitrate in the qos parameter of this request message is set to 0, perhaps revise in the PDP Context request message and carry RRI, and the value of RRI is True; Discharge the resource that PDP Context takies with indication.Again for example, the first transport module sends revises bearing request message, and the bit rate that guarantees in the qos parameter of modification bearing request message is set to 0, perhaps revise carrying RRI in the bearing request message, and the value of RRI is True; With the resource of indicating the releasing bearing context to take.The operation that the first transport module carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The first release module is mainly used in after the first initiation module is initiated the network side modification process, carries out the operation of carrying shared resource on the releasing user face path.For example, the first release module discharges the shared resource of PDP Context, and the maximum bitrate in the PDP Context (maximum bit rate) is set to 0kbit/s, and perhaps the value of the RRI field in the PDP Context is set to True.Again for example, the shared resource of the first release module releasing bearing, and the GBR in the bearer context is set to 0kbit/s, perhaps the value of the RRI field in the bearer context is set to True.The operation that the first release module is carried out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The another kind of network equipment that embodiment of the present invention provides as shown in Figure 15.The network equipment among Figure 15 can be the core net user face nodes.Can comprise in this network equipment: the 3rd initiation module, the 3rd transport module and the first release module; Also can comprise: the first initiation module, the first transport module, the first release module, the 3rd initiation module and the 3rd transport module.

The 3rd initiation module is mainly used in initiating network side deexcitation flow process when determining to need releasing user face path to carry the resource that takies.For example, the 3rd initiation module is initiated network side deexcitation flow process when user plane path is disconnected.The operation that the 3rd initiation module carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The 3rd transport module is mainly used in sending the message of the shared resource of carrying on the releasing user face path after the 3rd initiation module is initiated network side deexcitation flow process.For example, the 3rd transport module sends deletion PDP Context request message to SGSN; Again for example, the 3rd transport module sends deleting bearing request message etc. to MME.The operation that the 3rd transport module carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The first release module is mainly used in after the 3rd initiation module is initiated the network side modification process, carries out the operation of carrying shared resource on the releasing user face path.For example, the first release module discharges the shared resource of PDP Context, and the maximum bitrate in the PDP Context (maximum bit rate) is set to 0kbit/s, and perhaps the value of the RRI field in the PDP Context is set to True.Again for example, the shared resource of the first release module releasing bearing, and the GBR in the bearer context is set to 0kbit/s, perhaps the value of the RRI field in the bearer context is set to True.The operation that the first release module is carried out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

A kind of network equipment that embodiment of the present invention provides as shown in Figure 16.The network equipment among Figure 16 can be core network control surface node, is SGSN such as this network equipment, perhaps is MME etc.This network equipment can comprise the second initiation module, the second transport module and the second release module.

The second initiation module for described user plane path, is initiated the network side modification process after being mainly used in the notice of the node transmission in receiving user plane path.The second initiation module can not carry out the carrying attribute information judgement on the user plane path, and directly initiate the network side modification process in initiating network side modification process process; Also can carry out the carrying attribute information judgement on the user plane path, and only the user plane path with predefined type carrying attribute be initiated the network side modification process.

Only the user plane path with predefined type carrying attribute is initiated in the situation of network side modification process at the second initiation module, the second initiation module further comprises: judge submodule and initiate submodule.

After judging that submodule is mainly used in the notice of the node transmission in receiving user plane path, judge whether the carrying attribute information on the user plane path is predefined type, and the output judged result.For example, the PDP Context that uses on the user plane path of judgement submodule to interrupt is judged, and export the business information of PDP Context use, PDP Context use background is transmitted the class business or class business or use flow transmission class business or use session transmissions class business are transmitted in use alternately as exporting.Again for example, the judgement submodule is judged the bearer types on the user plane path of interrupt, and output bearer types information, is non-GBR carrying such as the output bearer types, and perhaps exporting bearer types is GBR carrying etc.The operation that the judgement submodule carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The second transport module is mainly used in after the second initiation module is initiated the network side modification process, utilizes the indication information of the shared resource of carrying on the network side modification process transmission releasing user face path.For example the second transport module sends and revises the PDP Context request message, and the maximum bitrate in the qos parameter of this request message is set to 0, perhaps revise in the PDP Context request message and carry RRI, and the value of RRI is True; Discharge the resource that PDP Context takies with indication.Again for example, the second transport module sends revises bearing request message, and the bit rate that guarantees in the qos parameter of modification bearing request message is set to 0, perhaps revise carrying RRI in the bearing request message, and the value of RRI is True; With the resource of indicating the releasing bearing context to take.The operation that the second transport module carries out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

The second release module is mainly used in after the second initiation module is initiated the network side modification process, initiates RAB and discharges flow process, discharges RAB.The operation that the second release module is carried out under concrete application scenarios is no longer carried out repeat specification like the description in the said method execution mode at this.

Can find out from the description of the respective embodiments described above, embodiment of the present invention is in time carried the resource that takies by utilizing the network side modification process on the releasing user face path; Embodiment of the present invention also can be initiated network side deexcitation flow process by the core net user face nodes and come the resource that carrying takies on the timely releasing user face path; Embodiment of the present invention can also be by notifying core network control surface node, coming the resource that carrying takies on the timely releasing user face path by the mode of core network control surface node initiation network side deexcitation flow process.When utilizing the network side modification process to come resource that releasing user face path carrying takies, embodiment of the present invention can adopt the core net user face nodes to initiate the notice core network control surface nodes such as network side modification process, radio network controller/gateway/core net user face nodes and initiate the various ways such as network side modification process and realize carrying on the releasing user face path resource that takies; Thereby improved the flexibility that resource discharges, and embodiment of the present invention can be applicable to Direct Tunnel mechanism.

Although described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.

Claims

1. a method for releasing resource is characterized in that, described method comprises:

Utilize the indication information of the shared resource of carrying on the described network side modification process transmission releasing user face path, and the resource shared according to carrying on the described indication information releasing user face path;

The step of described initiation network side modification process comprises: the core net user face nodes is initiated the network side modification process; Perhaps, the node notice core network control surface node in the user plane path, core network control surface node for described user plane path, is initiated the network side modification process after receiving described notice; The step of the node notice core network control surface node in the wherein said user plane path comprises:

Radio network controller or gateway or core net user face nodes are carried at the information of IP address, user plane path two ends and udp port number that the path is open close to be known in the request, and send to core network control surface node that described path is open close knows request; And/or radio network controller or the gateway cause value that user plane path is disconnected is carried in the RAB releasing request, and sends described RAB releasing request to core network control surface node.

2. the method for claim 1 is characterized in that, the step that described core net user face nodes/core network control surface node is initiated the network side modification process comprises:

Core net user face nodes/core network control surface node is judged the carrying attribute information on the described user plane path;

When the carrying attribute information on judging described user plane path was predefined type, core net user face nodes/core network control surface node was initiated the network side modification process.

3. method as claimed in claim 2 is characterized in that:

Described attribute information comprises: the type of service that PDP Context uses, and described predefined type comprises: the flow transmission class is professional and/or the session transmissions class is professional; Perhaps

Described attribute information comprises: the bearer types that bearer context uses, described predefined type comprises: guarantee the bit rate carrying.

4. the method for claim 1, it is characterized in that, the core net user face nodes is initiated the network side modification process, and the described indication information that utilizes the shared resource of carrying on the described network side modification process transmission releasing user face path, and comprise according to the step of the shared resource of carrying on the described indication information releasing user face path:

The core net user face nodes keeps PDP Context or the bearer context on the described user plane path, and discharges described PDP Context or the shared resource of bearer context;

The core net user face nodes sends the modification request that carries the indication information of the shared resource of carrying on the releasing user face path to core network control surface node;

Core network control surface node is initiated RAB according to the indication information that receives and is discharged flow process, discharges RAB.

5. the method for claim 1, it is characterized in that, core network control surface node is initiated the network side modification process, and the described indication information that utilizes the shared resource of carrying on the described network side modification process transmission releasing user face path, and comprise according to the step of the shared resource of carrying on the described indication information releasing user face path:

Core network control surface node sends the modification request that carries the indication information of the shared resource of carrying on the releasing user face path to the core net user face nodes;

The indication information that core net user face nodes basis receives keeps PDP Context or the bearer context on the described user plane path, and discharges described PDP Context or the shared resource of bearer context;

Core network control surface node is initiated RAB and is discharged flow process, discharges RAB.

6. such as the described method of arbitrary claim in the claim 1 to 5, it is characterized in that, described method comprises: remain with PDP Context or bearer context on the described user plane path in the core net user face nodes that described user plane path is corresponding and/or the subscriber equipment; Be provided with the indication information of the shared resource in releasing user face path in the PDP Context of described reservation or the bearer context.

7. such as claim 1 or 2 or 3 or 4 or 5 described methods, it is characterized in that, described indication information comprises: maximum bitrate is zero, guarantees that perhaps bit rate is zero, perhaps discharges indicating bit information for resource.

8. a network equipment for the core net user face nodes, is characterized in that, this network equipment comprises:

The first initiation module: be used for initiating the network side modification process when determining to need releasing user face path to carry the resource that takies, described initiation network side modification process comprises: the core net user face nodes is initiated the network side modification process; Perhaps, the node notice core network control surface node in the user plane path, core network control surface node for described user plane path, is initiated the network side modification process after receiving described notice; The step of the node notice core network control surface node in the wherein said user plane path comprises:

Radio network controller or gateway or core net user face nodes are carried at the information of IP address, user plane path two ends and udp port number that the path is open close to be known in the request, and send to core network control surface node that described path is open close knows request; And/or radio network controller or the gateway cause value that user plane path is disconnected is carried in the RAB releasing request, and sends described RAB releasing request to core network control surface node;

9. the network equipment as claimed in claim 8 is characterized in that, described the first initiation module comprises:

Judge submodule: be used for judging whether the carrying attribute information on the described user plane path is predefined type, and the output judged result;

Initiate submodule: be used for when judging that submodule is judged carrying attribute information on the described user plane path and is predefined type, initiating the network side modification process.

10. a network equipment is core network control surface node, it is characterized in that, this network equipment comprises:

The second initiation module: be used for after the notice that the node transmission that receives user plane path comes, for described user plane path, initiate the network side modification process, the notice that the transmission of node in the described user plane path comes comprises that the path is open close and knows request or RAB releasing request, described path is open close knows the information that carries IP address, user plane path two ends and udp port number in the request, carries the disconnected cause value of user plane path in the described RAB releasing request;

11. the network equipment as claimed in claim 10 is characterized in that, described the second initiation module comprises:

12. a method for releasing resource is characterized in that, described method comprises:

Utilize the shared resource of carrying on the described network side deexcitation flow process releasing user face path;

The step of the node notice core network control surface node in the described user plane path comprises: