CN108282770B

CN108282770B - A kind of method and device that Idle state tracing Area updates

Info

Publication number: CN108282770B
Application number: CN201710010546.9A
Authority: CN
Inventors: 程志密; 胡渭琦; 徐晖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2019-09-17
Anticipated expiration: 2037-01-06
Also published as: CN108282770A

Abstract

The present invention provides the method and devices that a kind of Idle state tracing Area updates, and are related to the communications field, solve the problems, such as the method and technique for not separating rear Idle state TAU with SM about MM in the prior art.This method is applied to MM, comprising: receives the tracing Area that user equipment (UE) is sent and updates TAU request message；According to the current location information of the UE carried in the TAU request message, when determining that the position of the UE changes, the location information of the UE is updated, and the location information current according to the UE, when determining that the user plane path of the UE needs to reselect, the instruction message modified to the user plane path of the UE is sent to conversation management functional SM.The solution of the present invention realizes the TAU that MM separates rear Idle state UE with SM.

Description

A kind of method and device that Idle state tracing Area updates

Technical field

The present invention relates to the communications field, in particular to a kind of method and device of Idle state tracing Area update.

Background technique

The control and forward separating of 5G network support gateway, MM (Mobility Management, mobile management) function It is separated with SM (Session Management, session management) function.Control and forward separating refers to the control to mobile network It is logically divided with forwarding capability, and undertakes corresponding function by different logical nes respectively, to realize function Centralized control, the allotment of resource elasticity, business flexible deployment, control plane and user face can distinguish the characteristics such as evolution.Control function by The controller of concentration undertakes.And the user face after separating can be disposed according to business demand distribution, and according to control plane Instruction efficiently complete to user's message include routing, modification, statistics etc. various processing and forwarding behavior.

New features are introduced in existing network to usually require to define new functional entity, and need to define new function entity With the interface between existing capability entity.Functional entity and number of ports with continually introducing for new features, in carrier network It measures more and more.In order to reduce the quantity of network element and interface in carrier network, control plane function remodeling technology is by existing network Control logic fractionation be independent functional module, be combined to form different network-controls further according to different application scenarios Face.

Currently, in the grouping system of evolution (Evolved Packet System, EPS), mobility management entity (Mobility Management Entity, MME) supports that MM function and SM function, MM function are, for example, to adhere to, track simultaneously Area's update etc., SM function is, for example, public data network establishment of connection, modification and deletion etc..

In order to improve the degree of modularity of network, in 5G network, MM and SM exist as two independent functional modules. Wherein the major function of MM be user's registration, UE (User Equipment, user equipment) be unreachable to discovery, position note Volume, the transition of UE state, connected state and the mobility of Inactive state, UE mobile restricted, UE mobile management control, anchor point Selection, establish user plane path etc..The major function of SM is forwarding and detection, session control, the user plane function of data packet Selection, the distribution (connection type IP) of UE IP (Internet Protoco, Internet protocol) address etc. of energy.MM and SM Between each other need Signalling exchange with realize information exchange with cooperate with.

Currently, not separating rear Idle state TAU's (Tracking Area Update, tracing section updating) with SM about MM Method and technique.

Summary of the invention

The technical problem to be solved in the present invention is to provide the method and devices that a kind of Idle state tracing Area updates, and solve existing The problem of not separating the method and technique of rear Idle state TAU in technology with SM about MM.

In order to solve the above technical problems, the embodiment of the present invention provides a kind of method that Idle state tracing Area updates, application In mobile management function to ps domain MM, comprising:

It receives the tracing Area that user equipment (UE) is sent and updates TAU request message；

According to the current location information of the UE carried in the TAU request message, determine that the position of the UE occurs When change, the location information of the UE is updated, and the location information current according to the UE, determines the user of the UE When face path needs to reselect, the instruction modified to the user plane path of the UE is sent to conversation management functional SM and is disappeared Breath.

Furthermore, it is understood that the location information current according to the UE carried in the TAU request message, determines the UE Position when changing, the step of being updated to the location information of the UE includes:

Obtain the identification information for the base station that the UE carried in the TAU request message is currently located；

According to the identification information of the base station being currently located the UE, judge whether the position of the UE changes；

If the position of the UE changes, according to the identification information of the base station being currently located the UE, to the UE Location information be updated.

Furthermore, it is understood that the location information current according to the UE, determines that the user plane path of the UE needs to select again The step of selecting include:

The user face of the UE and core net connect keep when, according to the current location information of the UE, described in judgement Whether UE removes the coverage area of former tracing Area TA list；

When the UE removes the coverage area of original TA list, determine that the user plane path needs of the UE reselect；

When the UE does not move out the coverage area of former TA list, judge whether the user plane path of the UE changes Become, if the user plane path of the UE changes, it is determined that the user plane path needs of the UE reselect, otherwise, really The user plane path of the fixed UE does not need to reselect.

Furthermore, it is understood that being sent when determining that the user plane path of the UE needs to reselect to conversation management functional SM The step of instruction message modified to the user plane path of the UE includes:

It is the UE selection target conversation management functional SM when the UE removes the coverage area of original TA list；

The first creation conversation request message is sent to the target SM, is carried in the first creation conversation request message The location information of the UE and the first SM relevant information；

The first creation conversational response message that the target SM is returned is received, is taken in the first creation conversational response message It is the IP address that the UE is redistributed with the target SM；

First is sent to the source SM of the UE and deletes conversation request message, is carried in the first deletion conversation request message There are the source IP address and/or User Identity of the UE；

It receives the source SM is returned first and deletes session completion message.

When the UE does not move out the coverage area of former TA list, the user plane path of the UE changes, Xiang Suoshu The source SM of UE sends user plane path and modifies instruction message, carries the UE's in the user plane path modification instruction message Location information and the 2nd SM relevant information；

It receives the user plane path modification that the source SM is returned and completes message.

When connection is not kept in the user face of the UE and core net, according to the current location information of the UE, institute is judged State the coverage area whether UE removes former tracing Area TA list；

When the UE does not move out the coverage area of former TA list, determine that the user plane path of the UE does not need to select again It selects.

It is the UE selection target SM when the UE removes the coverage area of original TA list；

The second creation conversation request message is sent to the target SM, is carried in the second creation conversation request message The location information of the UE and the 3rd SM relevant information；

The second creation conversational response message that the target SM is returned is received, is taken in the second creation conversational response message It is the IP address that the UE is redistributed with the target SM；

Second is sent to the source SM of the UE and deletes conversation request message, is carried in the second deletion conversation request message There are the source IP address and/or User Identity of the UE；

It receives the source SM is returned second and deletes session completion message.

Furthermore, it is understood that after receiving the tracing Area update TAU request message that user equipment (UE) is sent, further includes:

TAU received message is returned to the UE.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of device that Idle state tracing Area updates, answer For mobile management function to ps domain MM, comprising:

First receiving module, the tracing Area for receiving user equipment (UE) transmission update TAU request message；

Update module, for the location information current according to the UE carried in the TAU request message, determine described in When the position of UE changes, the location information of the UE is updated, and the location information current according to the UE, is determined When the user plane path of the UE needs to reselect, is sent to conversation management functional SM and the user plane path of the UE is carried out The instruction message of modification.

Furthermore, it is understood that the update module includes:

First acquisition unit, for obtaining the mark for the base station that the UE carried in the TAU request message is currently located Know information；

First judging unit, the identification information of the base station for being currently located according to the UE judge the position of the UE Whether change；

Updating unit, if the position for the UE changes, according to the mark of the base station being currently located the UE Information is updated the location information of the UE.

Furthermore, it is understood that the update module includes:

Second judgment unit, for the user face of the UE and core net connect keep when, it is current according to the UE Location information, judges whether the UE removes the coverage area of former tracing Area TA list；

First determination unit determines the user face of the UE when for removing the coverage area of original TA list in the UE Path needs to reselect；

Second determination unit judges the user of the UE when for not moving out the coverage area of former TA list in the UE Whether face path changes, if the user plane path of the UE changes, it is determined that the user plane path of the UE needs It reselects, otherwise, it determines the user plane path of the UE does not need to reselect.

Furthermore, it is understood that the update module includes:

First selecting unit is the UE selection target meeting when for removing the coverage area of original TA list in the UE Talk about management function SM；

First transmission unit, for sending the first creation conversation request message, the first creation meeting to the target SM The location information and the first SM relevant information of the UE are carried in words request message；

First receiving unit, the first creation conversational response message returned for receiving the target SM, first wound Building in conversational response message and carrying the target SM is the IP address that the UE is redistributed；

Second transmission unit deletes conversation request message for sending first to the source SM of the UE, and described first deletes The source IP address and/or User Identity of the UE are carried in conversation request message；

Second receiving unit deletes session completion message for receiving the source SM is returned first.

Furthermore, it is understood that the update module includes:

Third transmission unit, for not moving out the coverage area of former TA list, the user plane path of the UE in the UE When changing, the source SM of Xiang Suoshu UE sends user plane path and modifies instruction message, and the user plane path modification instruction disappears The location information and the 2nd SM relevant information of the UE are carried in breath；

Third receiving unit completes message for receiving the user plane path modification that the source SM is returned.

Furthermore, it is understood that the update module includes:

Third judging unit, for the user face of the UE and core net connection do not keep when, it is current according to the UE Location information, judge whether the UE removes the coverage area of former tracing Area TA list；

Third determination unit determines the user face of the UE when for removing the coverage area of original TA list in the UE Path needs to reselect；

4th determination unit determines the user of the UE when for not moving out the coverage area of former TA list in the UE Face path does not need to reselect.

Furthermore, it is understood that the update module includes:

Second selecting unit is the UE selection target SM when for removing the coverage area of original TA list in the UE；

4th transmission unit, for sending the second creation conversation request message, the second creation meeting to the target SM The location information and the 3rd SM relevant information of the UE are carried in words request message；

4th receiving unit, the second creation conversational response message returned for receiving the target SM, second wound Building in conversational response message and carrying the target SM is the IP address that the UE is redistributed；

5th transmission unit deletes conversation request message for sending second to the source SM of the UE, and described second deletes The source IP address and/or User Identity of the UE are carried in conversation request message；

5th receiving unit deletes session completion message for receiving the source SM is returned second.

Furthermore, it is understood that the device that above-mentioned Idle state tracing Area updates further include:

First return module, for returning to TAU received message to the UE.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of method that Idle state tracing Area updates, answer For conversation management functional SM, comprising:

Receive the instruction message modified to the user plane path of user equipment (UE) that mobile management function to ps domain MM is sent； Wherein, the instruction message is the tracing Area update TAU request message that the MM receives that the UE is sent, according to the TAU The UE carried in request message current location information, when determining that the position of the UE changes, to the position of the UE Confidence breath is updated, and the location information current according to the UE, determines that the user plane path needs of the UE reselect When the message that sends；

According to the instruction message, modify to the user plane path of the UE.

Furthermore, it is understood that receiving modifying to the user plane path of user equipment (UE) for mobile management function to ps domain MM transmission Instruction message the step of include:

The MM is received when the user face of the UE and core net connects holding, the first creation session request of transmission disappears Breath；

According to the instruction message, the step of modifying to the user plane path of the UE, includes:

The location information and the first SM relevant information for creating the UE carried in conversation request message according to described first, First object UP, distribution IP address and creation UE context are selected for the UE, and generates the first user face configuration-direct；It is described First object UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP；

Request message is established in the user face for carrying first user face configuration-direct to first object UP transmission；

It receives the user face that the first object UP is returned and establishes completion message；

The first creation conversational response message is returned to the MM.

The MM is received when the user face of the UE and core net connects holding, the first deletion session request of transmission disappears Breath；

Conversation request message, which is deleted, according to described first generates second user face configuration-direct；

The user face release request for carrying second user face configuration-direct to the first source UP of UE transmission disappears Breath；The first source UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP；

Receive the user face Release complete that the first source UP is returned；

The contextual information of the UE is deleted, and returns to first to the MM and deletes session completion message.

The MM is received when the user face of the UE and core net connects holding, the user plane path of transmission modifies instruction Message；

The location information and the 2nd SM correlation letter of the UE carried in instruction message are modified according to the user plane path Breath is that the UE selects the second target UP, and generates third user face configuration-direct；The second target UP include the side RAN UP and Core network internal UP；

Request message is established in the user face for carrying third user face configuration-direct to the second target UP transmission, And the user face modification request message for carrying third user face configuration-direct is sent to the source side the DN UP of the UE；

It receives the user face that the second target UP is returned and establishes the user face for completing message and source DN side UP return Message is completed in modification；

The location information and the 2nd SM correlation letter of the UE carried in instruction message are modified according to the user plane path Breath generates fourth user face configuration-direct, and carries the fourth user face configuration to the second source UP of UE transmission and refer to The user face of order discharges request message；The second source UP includes the side RAN UP and core network internal UP；

Receive the user face Release complete that the second source UP is returned；

The modification of second user face, which is returned, to the MM completes message.

The MM is received when the connection of the user face of the UE and core net is not kept, the second creation session request of transmission Message；

The location information and the 3rd SM relevant information for creating the UE carried in conversation request message according to described second, Third target UP, distribution IP address and creation UE context are selected for the UE, and generates the 5th user face configuration-direct；It is described Third target UP includes the side DN UP；

Request message is established in the user face for carrying the 5th user face configuration-direct to third target UP transmission；

It receives the user face that the third target UP is returned and establishes completion message；

The second creation conversational response message is returned to the MM.

The MM is received when the connection of the user face of the UE and core net is not kept, the second of transmission deletes session request Message；

Conversation request message, which is deleted, according to described second generates the 6th user face configuration-direct；

The user face release request for carrying the 6th user face configuration-direct to the third source UP of UE transmission disappears Breath；The third source UP includes the side DN UP；

Receive the user face Release complete that the third source UP is returned；

The contextual information of the UE is deleted, and returns to second to the MM and deletes session completion message.

In order to solve the above technical problems, the embodiment of the present invention also provides a kind of device that Idle state tracing Area updates, answer For conversation management functional SM, comprising:

Second receiving module, for receive mobile management function to ps domain MM transmission the user plane path to user equipment (UE) into The instruction message of row modification；Wherein, the instruction message is the tracing Area update TAU request that the MM receives that the UE is sent Message determines that the position of the UE changes according to the current location information of the UE carried in the TAU request message When, the location information of the UE is updated, and the location information current according to the UE, determines the user face road of the UE The message sent when diameter needs to reselect；

Modified module, for being modified to the user plane path of the UE according to the instruction message.

Furthermore, it is understood that second receiving module is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the first creation conversation request message of transmission；

The modified module includes:

Third selecting unit, for the location information according to the UE carried in the first creation conversation request message With the first SM relevant information, first object UP, distribution IP address and creation UE context are selected for the UE, and generates first and uses Family face configuration-direct；The first object UP includes Radio Access Network RAN side UP, core network internal UP and the side data network DN UP；

6th transmission unit, for sending the use for carrying first user face configuration-direct to the first object UP Request message is established in family face；

6th receiving unit establishes completion message for receiving the user face that the first object UP is returned；

First return unit, for returning to the first creation conversational response message to the MM.

Furthermore, it is understood that second receiving module is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the first of transmission deletes conversation request message；

The modified module includes:

First generation unit generates second user face configuration-direct for deleting conversation request message according to described first；

7th transmission unit, for carrying second user face configuration-direct to the first source UP of UE transmission User face discharges request message；The first source UP includes Radio Access Network RAN side UP, core network internal UP and data network The side DN UP；

7th receiving unit, the user face Release complete returned for receiving the first source UP；

Second return unit, for deleting the contextual information of the UE, and it is complete to MM return the first deletion session At message.

Furthermore, it is understood that second receiving module is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the user plane path of transmission modifies instruction message；

The modified module includes:

4th selecting unit, the position for modifying the UE carried in instruction message according to the user plane path are believed Breath and the 2nd SM relevant information are that the UE selects the second target UP, and generates third user face configuration-direct；Second mesh Marking UP includes the side RAN UP and core network internal UP；

8th transmission unit, for sending the use for carrying third user face configuration-direct to the second target UP Request message is established in family face, and the user face for carrying third user face configuration-direct is sent to the source side the DN UP of the UE Modify request message；

8th receiving unit establishes completion message and the source DN for receiving the user face that the second target UP is returned Message is completed in the user face modification that side UP is returned；

Second generation unit, the position for modifying the UE carried in instruction message according to the user plane path are believed Breath and the 2nd SM relevant information generate fourth user face configuration-direct, and carry to the second source UP of UE transmission described The user face of fourth user face configuration-direct discharges request message；The second source UP includes the side RAN UP and core network internal UP；

9th receiving unit, the user face Release complete returned for receiving the second source UP；

Third return unit completes message for returning to the modification of second user face to the MM.

Furthermore, it is understood that second receiving module is specifically used for receiving the MM in the user face of the UE and core net When connection is not kept, the second creation conversation request message of transmission；

The modified module includes:

5th selecting unit, for the location information according to the UE carried in the second creation conversation request message With the 3rd SM relevant information, third target UP, distribution IP address and creation UE context are selected for the UE, and generates the 5th and uses Family face configuration-direct；The third target UP includes the side DN UP；

9th transmission unit, for sending the use for carrying the 5th user face configuration-direct to the third target UP Request message is established in family face；

Tenth receiving unit establishes completion message for receiving the user face that the third target UP is returned；

4th return unit, for returning to the second creation conversational response message to the MM.

Furthermore, it is understood that second receiving module is specifically used for receiving the MM in the user face of the UE and core net When connection is not kept, the second of transmission deletes conversation request message；

The modified module includes:

Third generation unit generates the 6th user face configuration-direct for deleting conversation request message according to described second；

Tenth transmission unit, for carrying the 6th user face configuration-direct to the third source UP of UE transmission User face discharges request message；The third source UP includes the side DN UP；

11st receiving unit, the user face Release complete returned for receiving the third source UP；

5th return unit, for deleting the contextual information of the UE, and it is complete to MM return the second deletion session At message.

The advantageous effects of the above technical solutions of the present invention are as follows:

The method that the Idle state tracing Area of the embodiment of the present invention updates, after MM receives the TAU request message that UE is sent, according to The UE carried in TAU request message current location information when determining that the position of UE changes, carries out the location information of UE It updates, and the location information current according to UE, when determining that the user plane path of UE needs to reselect, sends the use to UE to SM The instruction message that family face path is modified.The method achieve MM to separate the TAU of rear Idle state UE with SM, solves existing skill The problem of not separating the method and technique of rear Idle state TAU in art with SM about MM.

Detailed description of the invention

Fig. 1 is the flow chart that the method that Idle state tracing Area of the present invention updates is applied to MM first embodiment；

Fig. 2 is the flow chart that the method that Idle state tracing Area of the present invention updates is applied to MM second embodiment；

Fig. 3 is UE of the present invention and the user face of core net connects and keeps, and UE removes the TAU stream of the coverage area of original TA list Cheng Tu；

Fig. 4 is UE of the present invention and the user face of core net connects and keeps, and UE does not move out the coverage area of former TA list, but UE The TAU flow chart that changes of user plane path；

Fig. 5 is the coverage area that UE of the present invention does not move out former TA list, and the user plane path of UE does not change, but UE phase The TAU flow chart that base station even changes；

Fig. 6 is that UE of the present invention does not move out the coverage area of former TA list, and the TAU that the connected base station UE does not change flows Cheng Tu；

Fig. 7 is the flow chart that the method that Idle state tracing Area of the present invention updates is applied to MM 3rd embodiment；

Fig. 8 is UE of the present invention and the user face connection of core net is not kept, and UE removes the TAU of the coverage area of original TA list Flow chart；

Fig. 9 is the flow chart that the method that Idle state tracing Area of the present invention updates is applied to SM；

The device that the Idle state tracing Area of the present invention Figure 10 updates is applied to the structural schematic diagram of MM；

The device that the Idle state tracing Area of the present invention Figure 11 updates is applied to the structural schematic diagram of SM；

Figure 12 is the structural schematic diagram of equipment of the core network of the present invention.

Specific embodiment

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

First embodiment

Shown in referring to Fig.1, the method that the Idle state tracing Area of the embodiment of the present invention updates is applied to mobile management function to ps domain MM, comprising:

Step 101, it receives the tracing Area that user equipment (UE) is sent and updates TAU request message.

In order to keep the mobility of UE, network needs the position for identifying and tracking UE or UE notice network to update oneself Position, i.e. UE trigger TAU more new procedures.

Here, UE triggers TAU more new procedures, and UE sends TAU request message and gives RAN (Radio Access Network, nothing Line access), TAU request message is transmitted to MM by RAN.

It wherein, may include User Identity user ID, MM Context identifier MM context in TAU request message The identification information BS ID for the base station that ID, UE are currently located or other marks.

Step 102, the location information current according to the UE carried in the TAU request message, determines the UE's When position changes, the location information of the UE is updated, and the location information current according to the UE, described in determination When the user plane path of UE needs to reselect, modify to conversation management functional SM transmission to the user plane path of the UE Instruction message.

Here, location information MM current according to the UE carried in TAU request message determines that the position of UE changes When, the location information of UE is updated, to keep the mobility of UE.And the location information that MM is current according to UE, determine UE's When user plane path needs to reselect, the instruction message modified to the user plane path of UE is sent to SM.

Optionally, the step of above-mentioned steps 102 include:

Step 1021, the identification information for the base station that the UE carried in the TAU request message is currently located is obtained.

It here, include with the identification information BS ID of the base station being currently located UE in TAU request message.

Step 1022, according to the identification information of the base station being currently located the UE, judge whether the position of the UE occurs Change.

Step 1023, if the position of the UE changes, according to the identification information of the base station being currently located the UE, The location information of the UE is updated.

Here, if the position of UE changes, the location information of UE is updated, according to BS ID to keep the mobility of UE.

The method that the Idle state tracing Area of the embodiment of the present invention updates, realizes the TAU that MM separates rear Idle state UE with SM, It solves the problems, such as not separate the method and technique of rear Idle state TAU with SM about MM in the prior art.

Second embodiment

The method that the Idle state tracing Area of the embodiment of the present invention updates, is directed to the coverage area of TA list TA list It is identical as the coverage of SM, the case where user face connection of the connection of the signaling plane of UE and core net, UE and core net is all kept. In this case TAU only discharges interface-free resources (side RAN resource).

Referring to shown in Fig. 2, the method that the Idle state tracing Area of the embodiment of the present invention updates is applied to mobile management function to ps domain MM, comprising:

Step 201, it receives the tracing Area that user equipment (UE) is sent and updates TAU request message.

Step 202, the location information current according to the UE carried in the TAU request message, determines the UE's When position changes, the location information of the UE is updated.

Here, MM is according to TAU request message, when determining that the position of UE changes, is updated to the location information of UE, To keep the mobility of UE.

Step 203, the user face of the UE and core net connect keep when, according to the current location information of the UE, Judge whether the UE removes the coverage area of former tracing Area TA list.

Here, when UE is in Idle state, the user face connection of UE and core net is still maintained conducive to the quick of business Response.

In this step, when the user face of UE and core net connects holding, whether MM judges UE according to TAU request message The coverage area for removing original TA list, determines whether the user plane path of UE needs to reselect with the situation of movement according to UE.

Step 204, when the UE removes the coverage area of original TA list, determine that the user plane path of the UE needs weight New selection.

Here, if UE removes the coverage area of original TA list, illustrate that UE is moved to new tracing Area, need the user to UE Face path reselects.

Step 205, when the UE does not move out the coverage area of former TA list, judge the UE user plane path whether It changes, if the user plane path of the UE changes, it is determined that the user plane path needs of the UE reselect, no Then, determine that the user plane path of the UE does not need to reselect.

Here, if UE does not move out the coverage area of former TA list, but UE is initiated because of periodical or other trigger conditions TAU, MM judge whether the user plane path of UE changes according to TAU request message, change if the user plane path of UE is sent It is also required to reselect the user plane path of UE.

Step 206, it when determining that the user plane path of the UE needs to reselect, sends to conversation management functional SM to institute State the instruction message that the user plane path of UE is modified.

Here, it when MM determines that the user plane path of UE needs to reselect, is sent to SM and the user plane path of UE is carried out The instruction message of modification.

Step 207, Xiang Suoshu UE returns to TAU received message.

Optionally, the step of above-mentioned steps 206 include:

It step 2061, is the UE selection target session management function when the UE removes the coverage area of original TA list It can SM.

Here, MM is that UE selects new SM, i.e. target SM according to TAU request message.

Wherein, MM can obtain location information, signing information or other auxiliary information (such as UE of UE according to TAU request message Type UE type), it is then that UE selects new SM according to the location information of UE, signing information or other auxiliary informations.

Step 2062, Xiang Suoshu target SM sends the first creation conversation request message, and the first creation session request disappears The location information and the first SM relevant information of the UE are carried in breath.

Here, after MM is UE selection target SM, the first creation conversation request message is sent to target SM, target SM being capable of root It is that UE selects suitable target according to the location information and the first SM relevant information of the UE carried in the first creation conversation request message UP (side RAN UP, core network internal UP and data network DN side UP), distribution IP address and creation UE context, and request to establish New user plane path.

Step 2063, the first creation conversational response message that the target SM is returned is received, the first creation session is rung Answering and carrying the target SM in message is the IP address that the UE is redistributed.

Here, target SM sends the first creation conversational response message to MM after the completion of new user plane path is established.

Step 2064, the source SM of Xiang Suoshu UE sends first and deletes conversation request message, and described first deletes session request The source IP address and/or User Identity of the UE are carried in message.

Here, MM sends first to source SM and deletes conversation request message, and source SM receives the first deletion conversation request message Afterwards, request discharges original user plane path and deletes the contextual information of UE.

Step 2065, it receives the source SM is returned first and deletes session completion message.

Here, source SM sends first and deletes after dischargeing original user plane path and deleting the contextual information of UE Session completes message to MM.

It is kept at this point, being connected in the user face of UE and core net, UE removes the TAU process when coverage area of original TA list In, new user plane path is established for UE, and discharge original user plane path, ensure that UE and network up and down data Effective transmission, and saved Internet resources.

The user face of UE in the embodiment of the present invention and core net are connected below and kept, UE removes the covering model of original TA list The TAU signaling procedure enclosed is illustrated below.

As shown in figure 3, the above-mentioned signaling procedure of the embodiment of the present invention includes:

Step 31-32, UE trigger TAU more new procedures, send TAU request message and forward TAU request message to RAN, RAN To MM.

Here, in TAU request message comprising User Identity user ID, MM Context identifier MM context ID, The identification information BS ID for the base station that UE is currently located or other marks.

Step 33, after the TAU request message that MM is received, determine that the position of UE changes according to BS ID, according to BS The location information of ID update UE.

Step 34, MM obtains the signing information or other auxiliary informations (such as UE type UE type) of UE according to user ID, MM is that UE selects new target SM, and sends the first creation meeting according to the location information of UE, signing information or other auxiliary informations Words request message gives target SM, and the location information and the first SM relevant information of UE are carried in the first creation conversation request message.

Step 35, target SM is that UE selects suitable first object according to the location information of UE and the first SM relevant information UP, distribution IP address IPA ' and creation UE context, and generate the first user face configuration-direct.

Here, first object UP includes the side RAN UP, core network internal UP and DN side UP.

Step 36, target SM sends the user face foundation request for carrying the first user face configuration-direct to first object UP Message.

Step 37, first object UP be forwarded according to the first user face configuration-direct/(side RAN UP is received routing rule Downlink data message is reported to SM) configuration, configuration after the completion of send user face establish complete message give target SM.

Step 38, target SM sends the first creation conversational response message to MM, and the IP address IPA ' carried as UE distribution.

Step 39, it after MM receives the first creation conversational response message that target SM is sent, sends the first deletion session and asks Message is asked to give source SM.

Here, source IP address and/or user ID of UE etc. are carried in the first deletion conversation request message.

Step 310, source SM generates second user face configuration-direct, then sends and carries second user face configuration-direct User face discharges request message to the first source UP.

Here, the first source UP includes the side RAN UP, core network internal UP and DN side UP.

Step 311, it after the first source UP receives user face release request message, is carried out according to second user face configuration-direct Then the release (can be discarding to the disposal options of the data message of the UE) in user face sends user face Release complete Give source SM.

Step 312, source SM deletes the contextual information of UE.

Step 313, source SM sends first and deletes conversational response message to MM.

Step 314-315 after MM receives the first deletion conversational response message, sends TAU and accepts message to RAN, RAN will TAU received message is transmitted to UE.

Here, TAU received message includes the IP address IPA ' and new TA list that target SM is UE distribution.UE is received After TAU received message, carries out IP address configuration and store new TA list.

Optionally, the step of above-mentioned steps 206 include:

Step 2066, the UE does not move out the coverage area of former TA list, the user plane path of the UE changes When, the source SM of Xiang Suoshu UE sends user plane path and modifies instruction message, carries in the user plane path modification instruction message There are the location information and the 2nd SM relevant information of the UE.

Here, MM sends user plane path modification instruction message to the source SM of UE current service, and source SM can be according to user The location information of the UE carried in face path modification instruction message and the 2nd SM relevant information are that UE selects suitable target UP (side RAN UP and core network internal UP), distribution IP address and creation UE context, and request to establish new user face and request and release Put original user plane path.

Step 2067, it receives the user plane path modification that the source SM is returned and completes message.

Here, source SM is established in new user plane path and is completed, and after dischargeing original user plane path, sends user The modification of face path completes message to MM.

It is kept at this point, being connected in the user face of UE and core net, UE does not move out the coverage area of former TA list, but the use of UE During TAU when family face path changes, new user plane path is established for UE, and discharge original user face road Diameter, ensure that effective transmission of UE Yu network up and down data, and save Internet resources.

The user face of UE in the embodiment of the present invention and core net are connected below and kept, UE does not move out the covering of former TA list Range, but the TAU signaling procedure that the user plane path of UE changes is illustrated below.

As shown in figure 4, the above-mentioned signaling procedure of the embodiment of the present invention includes:

Step 41-42, UE trigger TAU more new procedures, send TAU request message and forward TAU request message to RAN, RAN To MM.

Step 43, after the TAU request message that MM is received, determine that the position of UE changes according to BS ID, according to BS The location information of ID update UE.

Step 44, MM determines that the user plane path of UE changes according to the location information of UE, sends user plane path and repairs Change instruction message and gives source SM.

Here, location information and the 2nd SM relevant information of UE etc. are carried in user plane path modification instruction message.

Step 45, source SM is that UE selects suitable second target UP according to the location information of UE and the 2nd SM relevant information, And after generating third user face configuration-direct, the user face for carrying third user face configuration-direct to the second target UP transmission is built Vertical request message；

Step 46, the second target UP be forwarded according to third user face configuration-direct/(side RAN UP is received routing rule Downlink data message is reported to SM) configuration, configuration after the completion of send user face establish complete message give source SM.

Step 47, source SM sends the user face modification request for carrying third user face configuration-direct to the source side the DN UP of UE Message.

Step 48, the side source DN UP be forwarded according to third user face configuration-direct/(side RAN UP is received down routing rule Row data message is reported to SM) configuration, configuration after the completion of send the first user face modification complete message give source SM.

Step 49, source SM generates fourth user face configuration-direct, then sends and carries fourth user face configuration-direct User face discharges request message to the second source UP.

Here, the second source UP includes the side RAN UP and core network internal UP.

Step 410, it after the second source UP receives user face release request message, is carried out according to fourth user face configuration-direct Then the release (can be discarding to the disposal options of the data message of the UE) in user face sends user face Release complete Give source SM.

Step 411, source SM sends the modification of second user face and completes message to MM.

Step 412-413 sends TAU and accepts message to RAN, RAN after MM receives second user face modification completion message TAU received message is transmitted to UE.

In the embodiment of the present invention, when the user plane path of UE does not need to reselect, if UE connected base station changes Become, directly can return to TAU received message to UE after the completion of the updating location information of UE.

The coverage area of former TA list is not moved out to UE in the embodiment of the present invention below, the user plane path of UE does not change Become, but the TAU signaling procedure that the connected base station UE changes is illustrated below.

As shown in figure 5, the above-mentioned signaling procedure of the embodiment of the present invention includes:

Step 51-52, UE trigger TAU more new procedures, send TAU request message and forward TAU request message to RAN, RAN To MM.

Step 53, after the TAU request message that MM is received, determine that the position of UE changes according to BS ID, according to BS The location information of ID update UE.

Step 54-55, MM transmission TAU accepts message to RAN, and TAU received message is transmitted to UE by RAN.

In the embodiment of the present invention, when the user plane path of UE does not need to reselect, if UE connected base station does not occur Change, directly can return to TAU received message to UE.

The coverage area of former TA list is not moved out to UE in the embodiment of the present invention below, and the base station that UE is connected does not change The TAU signaling procedure of change is illustrated below.

As shown in fig. 6, the above-mentioned signaling procedure of the embodiment of the present invention includes:

Step 61-62, UE trigger TAU more new procedures, send TAU request message and forward TAU request message to RAN, RAN To MM.

Step 63-64, MM transmission TAU accepts message to RAN, and TAU received message is transmitted to UE by RAN.

To sum up, the method that the Idle state tracing Area of the embodiment of the present invention updates, realizes MM and separates rear Idle state UE with SM TAU, solve the problems, such as not separate the method and technique of rear Idle state TAU with SM about MM in the prior art.And work as UE When in Idle state, the user face connection of UE and core net still maintains the quick response conducive to business.

3rd embodiment

The method that the Idle state tracing Area of the embodiment of the present invention updates, be directed to the coverage area of TA list TAlist with The coverage of SM is identical, the signaling plane of UE and core net, which connects, to be kept, but the connection of the user face of UE and core net is not kept Situation.In this case TAU discharges interface-free resources (side RAN resource).

Referring to shown in Fig. 7, the method that the Idle state tracing Area of the embodiment of the present invention updates is applied to mobile management function to ps domain MM, comprising:

Step 701, it receives the tracing Area that user equipment (UE) is sent and updates TAU request message.

Step 702, the location information current according to the UE carried in the TAU request message, determines the UE's When position changes, the location information of the UE is updated.

Step 703, when in the user face of the UE and core net, connection is not kept, believed according to the UE current position Breath, judges whether the UE removes the coverage area of former tracing Area TA list.

Here, when UE is in Idle state, the signaling plane of UE and core net, which connects, to be kept, and the user face of UE and core net Connection does not keep that signaling overheads can be reduced, and reduces network resource consumption.

In this step, when in the user face of UE and core net, connection is not kept, MM judges that UE is according to TAU request message The no coverage area for removing original TA list, determines whether the user plane path of UE needs to select again with the situation of movement according to UE It selects.

Step 704, when the UE removes the coverage area of original TA list, determine that the user plane path of the UE needs weight New selection.

Step 705, when the UE does not move out the coverage area of former TA list, determine that the user plane path of the UE is not required to It reselects.

Here, it if UE does not move out the coverage area of former TA list, does not need to reselect the user plane path of UE.

Step 706, it when determining that the user plane path of the UE needs to reselect, sends to conversation management functional SM to institute State the instruction message that the user plane path of UE is modified.

Step 707, Xiang Suoshu UE returns to TAU received message.

Optionally, the step of above-mentioned steps 706 include:

It step 7061, is the UE selection target SM when the UE removes the coverage area of original TA list.

Step 7062, Xiang Suoshu target SM sends the second creation conversation request message, and the second creation session request disappears The location information and the 3rd SM relevant information of the UE are carried in breath.

Here, after MM is UE selection target SM, the second creation conversation request message is sent to target SM, target SM being capable of root It is that UE selects suitable target according to the location information and the 3rd SM relevant information of the UE carried in the second creation conversation request message UP (DN side UP), distribution IP address and creation UE context, and request to establish new user plane path.

Step 7063, the second creation conversational response message that the target SM is returned is received, the second creation session is rung Answering and carrying the target SM in message is the IP address that the UE is redistributed.

Here, target SM sends the second creation conversational response message to MM after the completion of new user plane path is established.

Step 7064, the source SM of Xiang Suoshu UE sends second and deletes conversation request message, and described second deletes session request The source IP address and/or User Identity of the UE are carried in message.

Here, MM sends second to source SM and deletes conversation request message, and source SM receives the second deletion conversation request message Afterwards, request discharges original user plane path and deletes the contextual information of UE.

Step 7065, it receives the source SM is returned second and deletes session completion message.

Here, source SM sends second and deletes after dischargeing original user plane path and deleting the contextual information of UE Session completes message to MM.

At this point, connection is not kept in the user face of UE and core net, UE removes the TAU mistake when coverage area of original TA list Cheng Zhong establishes new user plane path for UE, and discharges original user plane path, ensure that UE and network uplink data Effective transmission, and saved Internet resources.

The user face connection of UE in the embodiment of the present invention and core net are not kept below, UE removes the covering of original TA list The TAU signaling procedure of range is illustrated below.

As shown in figure 8, the above-mentioned signaling procedure of the embodiment of the present invention includes:

Step 81-82, UE trigger TAU more new procedures, send TAU request message and forward TAU request message to RAN, RAN To MM.

Step 83, after the TAU request message that MM is received, determine that the position of UE changes according to BS ID, according to BS The location information of ID update UE.

Step 84, MM obtains the signing information or other auxiliary informations (such as UE type UE type) of UE according to user ID, MM is that UE selects new target SM, and sends the second creation meeting according to the location information of UE, signing information or other auxiliary informations Words request message gives target SM, and the location information and the 3rd SM relevant information of UE are carried in the second creation conversation request message.

Step 85, target SM is that UE selects suitable third target according to the location information of UE and the 3rd SM relevant information UP, distribution IP address IPA ' and creation UE context, and generate the 5th user face configuration-direct.

Here, third target UP includes the side DN UP.

Step 86, target SM sends the user face foundation request for carrying the 5th user face configuration-direct to third target UP Message.

Step 87, third target UP be forwarded according to the 5th user face configuration-direct/(side RAN UP is received routing rule Downlink data message is reported to SM) configuration, configuration after the completion of send user face establish complete message give target SM.

Step 88, target SM sends the second creation conversational response message to MM, and the IP address IPA ' carried as UE distribution.

Step 89, it after MM receives the second creation conversational response message that target SM is sent, sends the second deletion session and asks Message is asked to give source SM.

Here, source IP address and/or user ID of UE etc. are carried in the second deletion conversation request message.

Step 810, source SM generates the 6th user face configuration-direct, then sends and carries the 6th user face configuration-direct User face release request message gives third source UP.

Here, third source UP includes the side DN UP.

Step 811, it after third source UP receives user face release request message, is carried out according to the 6th user face configuration-direct Then the release (can be discarding to the disposal options of the data message of the UE) in user face sends user face Release complete Give source SM.

Step 812, source SM deletes the contextual information of UE.

Step 813, source SM sends second and deletes conversational response message to MM.

Step 814-815 after MM receives the second deletion conversational response message, sends TAU and accepts message to RAN, RAN will TAU received message is transmitted to UE.

In the embodiment of the present invention, when the user plane path of UE does not need to reselect, if UE connected base station changes Become, directly can return to TAU received message to UE after the completion of the updating location information of UE.The TAU signaling procedure can refer to method Process shown in fig. 5 in second embodiment, details are not described herein.

In the embodiment of the present invention, when the user plane path of UE does not need to reselect, if UE connected base station does not occur Change, directly can return to TAU received message to UE.The TAU signaling procedure can refer to stream shown in fig. 6 in method second embodiment Journey, details are not described herein.

To sum up, the method that the Idle state tracing Area of the embodiment of the present invention updates, realizes MM and separates rear Idle state UE with SM TAU, solve the problems, such as not separate the method and technique of rear Idle state TAU with SM about MM in the prior art.And work as UE When in Idle state, the signaling plane of UE and core net, which connects, to be kept, and the connection of the user face of UE and core net does not keep to subtract Few signaling overheads, reduces network resource consumption.

Fourth embodiment

Referring to shown in Fig. 9, the method that the Idle state tracing Area of the embodiment of the present invention updates is applied to conversation management functional SM, comprising:

Step 901, receive that mobile management function to ps domain MM sends modifies to the user plane path of user equipment (UE) Instruction message.Wherein, the instruction message is the tracing Area update TAU request message that the MM receives that the UE is sent, root According to the current location information of the UE carried in the TAU request message, when determining that the position of the UE changes, to institute The location information for stating UE is updated, and the location information current according to the UE, determines the user plane path needs of the UE The message sent when reselecting.

Here, UE triggers TAU more new procedures, and UE sends TAU request message to MM.MM determines UE according to TAU request message Position when changing, when being updated to the location information of UE, and determining that the user plane path of UE needs to reselect, to SM sends the instruction message modified to the user plane path of UE.

Step 902, it according to the instruction message, modifies to the user plane path of the UE.

Here, SM executes the modification to the user plane path of UE according to instruction message.

It is identical as the coverage of SM in the coverage area of TA list TAlist, the signaling plane connection of UE and core net, UE It is connect with the user face of core net in the case where all keeping, optionally, the step of above-mentioned steps 901 includes:

Step 9011, the MM is received when the user face of the UE and core net connects holding, the first creation of transmission Conversation request message.

Here, when the user face of UE and core net connects holding, MM determines that UE removes the coverage area of original TA list, is UE selects new SM, and sends the first creation conversation request message to SM to establish new user plane path.

The step of above-mentioned steps 902 includes:

Step 9021, according to the location information and the first SM of the UE carried in the first creation conversation request message Relevant information selects first object UP, distribution IP address and creation UE context for the UE, and generates the configuration of the first user face Instruction；The first object UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP.

Here, location information and the first SM relevant information that SM creates the UE carried in conversation request message according to first, First object UP, distribution IP address and creation UE context are selected for UE, and generates the first user face configuration-direct, is built with request Found new user plane path.

Step 9022, Xiang Suoshu first object UP sends the user face foundation for carrying first user face configuration-direct Request message.

Here, SM establishes request message to the user face that first object UP transmission carries the first user face configuration-direct, New user plane path is established in request.

Step 9023, it receives the user face that the first object UP is returned and establishes completion message.

Here, first object UP be forwarded according to the first user face configuration-direct/(side RAN UP is received down routing rule Row data message is reported to SM) configuration, configuration after the completion of send user face establish complete message give target SM.

Step 9024, Xiang Suoshu MM returns to the first creation conversational response message.

Here, after SM receives user face foundation completion message, the first creation conversational response message is sent to MM, and carry For the IP address of UE distribution.

Optionally, the step of above-mentioned steps 901 include:

Step 9012, the MM is received when the user face of the UE and core net connects holding, and the first of transmission is deleted Conversation request message.

Here, when the user face of UE and core net connects holding, MM determines that UE removes the coverage area of original TA list, MM First, which is sent, to SM deletes conversation request message to discharge original user plane path.SM receives the first deletion session request and disappears Breath, request discharge original user plane path and delete the contextual information of UE.

The step of above-mentioned steps 902 includes:

Step 9025, conversation request message is deleted according to described first generate second user face configuration-direct.

Here, SM generates second user face configuration-direct to discharge original user plane path.

Step 9026, it releases in the user face that the first source UP transmission of Xiang Suoshu UE carries second user face configuration-direct Put request message；The first source UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP.

Here, SM sends the user face release request message for carrying second user face configuration-direct to the first source UP, asks Seek the original user plane path of release.

Step 9027, the user face Release complete that the first source UP is returned is received.

Here, it after the first source UP receives user face release request message, is used according to second user face configuration-direct The release (discarding can be to the disposal options of the data message of the UE) in family face, then send user face Release complete to Source SM.

Step 9028, the contextual information of the UE is deleted, and returns to first to the MM and deletes session completion message.

Here, after SM receives user face Release complete, the contextual information of UE is deleted, and return to first to MM and delete Except message is completed in session.

It is identical as the coverage of SM in the coverage area of TA list TA list, the signaling plane connection of UE and core net, UE It is connect with the user face of core net in the case where all keeping, optionally, the step of above-mentioned steps 901 includes:

Step 9013, the MM is received when the user face of the UE and core net connects holding, the user face road of transmission Diameter modifies instruction message.

Here, when the user face of UE and core net connects holding, MM determines that UE does not move out the coverage area of former TA list, But the user plane path of UE changes, and sends user plane path to SM and modifies instruction message.

The step of above-mentioned steps 902 includes:

Step 9029, the location information and second of the UE carried in instruction message is modified according to the user plane path SM relevant information is that the UE selects the second target UP, and generates third user face configuration-direct；The second target UP includes The side RAN UP and core network internal UP.

Here, SM modifies the location information of the UE carried in instruction message according to user plane path and the 2nd SM correlation is believed Breath selects the second target UP, distribution IP address and creation UE context for UE, and generates third user face configuration-direct, to ask It asks and establishes new user plane path.

Step 90210, the user face that Xiang Suoshu the second target UP transmission carries third user face configuration-direct is built Vertical request message, and asked to the user face modification that the source side the DN UP of UE transmission carries third user face configuration-direct Seek message.

Here, SM establishes request message to the user face that the second target UP transmission carries third user face configuration-direct, New user plane path is established in request, and is repaired to the user face that the source side the DN UP of UE transmission carries third user face configuration-direct Change request message, request modification user plane path.

Step 90211, completion message is established in the user face for receiving the second target UP return and source DN side UP is returned Message is completed in the user face modification returned.

Here, the second target UP and source side DN UP is forwarded/routing rule (RAN according to third user face configuration-direct Side UP receives downlink data message and is reported to SM) configuration, user face foundation/modification is sent after the completion of configuration and completes message to source SM。

Step 90212, the location information of the UE carried in instruction message and the are modified according to the user plane path Two SM relevant informations generate fourth user face configuration-direct, and carry the described 4th to the second source UP of UE transmission and use The user face of family face configuration-direct discharges request message；The second source UP includes the side RAN UP and core network internal UP.

Here, SM generates fourth user face configuration-direct, and carries the configuration of fourth user face to the second source UP transmission and refer to The user face of order discharges request message, and request discharges original user plane path.

Step 90213, the user face Release complete that the second source UP is returned is received.

Here, it after the second source UP receives user face release request message, is used according to fourth user face configuration-direct The release (discarding can be to the disposal options of the data message of the UE) in family face, then send user face Release complete to Source SM.

Step 90214, Xiang Suoshu MM returns to the modification of second user face and completes message.

Here, after source SM receives user face Release complete, the second user face modification of transmission completes message to MM.

Step 9014, the MM is received when the connection of the user face of the UE and core net is not kept, the second wound of transmission Build conversation request message.

Here, when in the user face of UE and core net, connection is not kept, MM determines that UE removes the coverage area of original TA list, New SM is selected for UE, and sends the second creation conversation request message to SM to establish new user plane path.

The step of above-mentioned steps 902 includes:

Step 90215, according to the location information and third of the UE carried in the second creation conversation request message SM relevant information selects third target UP, distribution IP address and creation UE context for the UE, and generates the 5th user face and match Set instruction；The third target UP includes the side DN UP.

Here, location information and the 3rd SM relevant information that SM creates the UE carried in conversation request message according to second, Third target UP, distribution IP address and creation UE context are selected for UE, and generates the 5th user face configuration-direct, is built with request Found new user plane path.

Step 90216, the user face that Xiang Suoshu third target UP transmission carries the 5th user face configuration-direct is built Vertical request message.

Here, SM establishes request message to the user face that third target UP transmission carries the 5th user face configuration-direct, New user plane path is established in request.

Step 90217, it receives the user face that the third target UP is returned and establishes completion message.

Here, third target UP be forwarded according to the 5th user face configuration-direct/(side RAN UP is received down routing rule Row data message is reported to SM) configuration, configuration after the completion of send user face establish complete message give target SM.

Step 90218, Xiang Suoshu MM returns to the second creation conversational response message.

Here, after SM receives user face foundation completion message, the second creation conversational response message is sent to MM, and carry For the IP address of UE distribution.

Optionally, the step of above-mentioned steps 901 include:

Step 9015, the MM is received when the connection of the user face of the UE and core net is not kept, and the second of transmission is deleted Except conversation request message.

Here, when in the user face of UE and core net, connection is not kept, MM determines that UE removes the coverage area of original TA list, MM sends second to SM and deletes conversation request message to discharge original user plane path.SM receives the second deletion session request Message, request discharge original user plane path and delete the contextual information of UE.

The step of above-mentioned steps 902 includes:

Step 90219, conversation request message is deleted according to described second generate the 6th user face configuration-direct.

Here, SM generates the 6th user face configuration-direct to discharge original user plane path.

Step 90220, the third source UP of Xiang Suoshu UE sends the user face for carrying the 6th user face configuration-direct Discharge request message；The third source UP includes the side DN UP.

Here, SM sends the user face release request message for carrying the 6th user face configuration-direct to third source UP, asks Seek the original user plane path of release.

Step 90221, the user face Release complete that the third source UP is returned is received.

Here, it after third source UP receives user face release request message, is used according to the 6th user face configuration-direct The release (discarding can be to the disposal options of the data message of the UE) in family face, then send user face Release complete to Source SM.

Step 90222, the contextual information of the UE is deleted, and returns to second to the MM and deletes session completion message.

Here, after SM receives user face Release complete, the contextual information of UE is deleted, and return to second to MM and delete Except message is completed in session.

To sum up, the method that the Idle state tracing Area of the embodiment of the present invention updates, realizes MM and separates rear Idle state UE with SM TAU, solve the problems, such as not separate the method and technique of rear Idle state TAU with SM about MM in the prior art.

5th embodiment

Figure 10 is the structure chart for the device that the Idle state tracing Area of the embodiment of the present invention updates, and is able to achieve first embodiment extremely The details for the method that Idle state tracing Area in 3rd embodiment updates, and reach identical effect.

The device that Idle state tracing Area shown in Fig. 10 updates is applied to mobile management function to ps domain MM, comprising:

First receiving module 1001, the tracing Area for receiving user equipment (UE) transmission update TAU request message；

Update module 1002 is determined for the location information current according to the UE carried in the TAU request message When the position of the UE changes, the location information of the UE is updated, and the location information current according to the UE, When determining that the user plane path of the UE needs to reselect, the user plane path to the UE is sent to conversation management functional SM The instruction message modified.

The device that the Idle state tracing Area of the embodiment of the present invention updates, realizes the TAU that MM separates rear Idle state UE with SM, It solves the problems, such as not separate the method and technique of rear Idle state TAU with SM about MM in the prior art.

Optionally, the update module 1002 includes:

Optionally, the device that above-mentioned Idle state tracing Area updates further include:

First return module, for returning to TAU received message to the UE.

Sixth embodiment

Figure 11 is the structure chart for the device that the Idle state tracing Area of the embodiment of the present invention updates, and is able to achieve in fourth embodiment The details of method that updates of Idle state tracing Area, and reach identical effect.

The device that Idle state tracing Area shown in Figure 11 updates is applied to conversation management functional SM, comprising:

Second receiving module 1101, for receiving the user face road to user equipment (UE) of mobile management function to ps domain MM transmission The instruction message that diameter is modified；Wherein, the instruction message is the tracing Area update TAU that the MM receives that the UE is sent Request message determines that the position of the UE occurs according to the current location information of the UE carried in the TAU request message When change, the location information of the UE is updated, and the location information current according to the UE, determines the user of the UE The message that face path is sent when needing to reselect；

Modified module 1102, for being modified to the user plane path of the UE according to the instruction message.

Optionally, second receiving module 1101 is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the first creation conversation request message of transmission；

The modified module 1102 includes:

Optionally, second receiving module 1101 is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the first of transmission deletes conversation request message；

The modified module 1102 includes:

Optionally, second receiving module 1101 is specifically used for receiving the MM in the user face of the UE and core net When connection is kept, the user plane path of transmission modifies instruction message；

The modified module 1102 includes:

Optionally, second receiving module 1101 is specifically used for receiving the MM in the user face of the UE and core net When connection is not kept, the second creation conversation request message of transmission；

The modified module 1102 includes:

Optionally, second receiving module 1101 is specifically used for receiving the MM in the user face of the UE and core net When connection is not kept, the second of transmission deletes conversation request message；

The modified module 1102 includes:

7th embodiment

Referring to Fig.1 shown in 2, the equipment of the core network of the embodiment of the present invention, comprising:

Processor 1200, transceiver 1210, memory 1220 and bus interface；Processor 1200, transceiver 1210 and is deposited Reservoir 1220 is connect with bus interface；

Processor 1200 executes following process: being received by transceiver 1210 for reading the program in memory 1220 The tracing Area that user equipment (UE) is sent updates TAU request message；Current according to the UE carried in the TAU request message Location information when determining that the position of the UE changes, is updated the location information of the UE, and is worked as according to the UE Preceding location information, when determining that the user plane path of the UE needs to reselect, by transceiver 1210 to session management function Energy SM sends the instruction message modified to the user plane path of the UE.

Wherein, in Figure 12, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1200 one or more processors represented and memory 1220 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1210 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1200 is responsible for management bus architecture and common processing, memory 1220 can store processor 1200 The used data when executing operation.

Processor 1200, which is responsible for management bus architecture and common processing, memory 1220, can store processor 1200 and exists Execute used data when operation.

It should be noted that the equipment of the core network of the embodiment of the present invention can be realized the embodiment of the method for above-mentioned Fig. 1 to Fig. 9 Each process that middle equipment of the core network is realized, the realization embodiment of the method for above-mentioned Fig. 1 to Fig. 9 are suitable for the core net In the embodiment of equipment, it can also reach identical technical effect.

In various embodiments of the present invention, it should be appreciated that magnitude of the sequence numbers of the above procedures are not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of method that Idle state tracing Area updates is applied to mobile management function to ps domain MM characterized by comprising

According to the current location information of the UE carried in the TAU request message, determine that the position of the UE changes When, the location information of the UE is updated, and the location information current according to the UE, determines the user face road of the UE When diameter needs to reselect, the instruction message modified to the user plane path of the UE is sent to conversation management functional SM；

According to the current location information of the UE, determine that the user plane path of the UE needs the step of reselecting to include:

When connection is not kept in the user face of the UE and core net, according to the current location information of the UE, the UE is judged Whether the coverage area of former tracing Area TA list is removed；

When the UE does not move out the coverage area of former TA list, determine that the user plane path of the UE does not need to reselect.

2. the method according to claim 1, wherein being worked as according to the UE carried in the TAU request message Preceding location information, when determining that the position of the UE changes, the step of being updated to the location information of the UE, includes:

If the position of the UE changes, according to the identification information of the base station being currently located the UE, to the position of the UE Confidence breath is updated.

3. the method according to claim 1, wherein the location information current according to the UE, determines the UE User plane path need the step of reselecting to include:

When the user face of the UE and core net connects holding, according to the current location information of the UE, judge that the UE is The no coverage area for removing former tracing Area TA list；

When the UE does not move out the coverage area of former TA list, judge whether the user plane path of the UE changes, if The user plane path of the UE changes, it is determined that the user plane path needs of the UE reselect, otherwise, it determines described The user plane path of UE does not need to reselect.

4. according to the method described in claim 3, it is characterized in that, determining that the user plane path needs of the UE reselect When, the step of sending the instruction message modified to the user plane path of the UE to conversation management functional SM includes:

The first creation conversation request message is sent to the target SM, is carried in the first creation conversation request message described The location information of UE and the first SM relevant information；

The first creation conversational response message that the target SM is returned is received, is carried in the first creation conversational response message The target SM is the IP address that the UE is redistributed；

First is sent to the source SM of the UE and deletes conversation request message, is carried in the first deletion conversation request message State the source IP address and/or User Identity of UE；

5. according to the method described in claim 3, it is characterized in that, determining that the user plane path needs of the UE reselect When, the step of sending the instruction message modified to the user plane path of the UE to conversation management functional SM includes:

When the UE does not move out the coverage area of former TA list, the user plane path of the UE changes, Xiang Suoshu UE's Source SM sends user plane path and modifies instruction message, and the position of the UE is carried in the user plane path modification instruction message Information and the 2nd SM relevant information；

6. the method according to claim 1, wherein determining that the user plane path needs of the UE reselect When, the step of sending the instruction message modified to the user plane path of the UE to conversation management functional SM includes:

The second creation conversation request message is sent to the target SM, is carried in the second creation conversation request message described The location information of UE and the 3rd SM relevant information；

The second creation conversational response message that the target SM is returned is received, is carried in the second creation conversational response message The target SM is the IP address that the UE is redistributed；

Second is sent to the source SM of the UE and deletes conversation request message, is carried in the second deletion conversation request message State the source IP address and/or User Identity of UE；

7. being asked the method according to claim 1, wherein receiving the tracing Area that user equipment (UE) is sent and updating TAU After seeking message, further includes:

TAU received message is returned to the UE.

8. the device that a kind of Idle state tracing Area updates is applied to mobile management function to ps domain MM characterized by comprising

Update module determines the UE's for the location information current according to the UE carried in the TAU request message When position changes, the location information of the UE is updated, and the location information current according to the UE, described in determination When the user plane path of UE needs to reselect, modify to conversation management functional SM transmission to the user plane path of the UE Instruction message；

The update module includes:

Third judging unit, for the user face of the UE and core net connection do not keep when, according to the current position the UE Confidence breath, judges whether the UE removes the coverage area of former tracing Area TA list；

Third determination unit determines the user plane path of the UE when for removing the coverage area of original TA list in the UE It needs to reselect；

4th determination unit when for not moving out the coverage area of former TA list in the UE, determines the user face road of the UE Diameter does not need to reselect.

9. device according to claim 8, which is characterized in that the update module includes:

First acquisition unit, the mark for obtaining the base station that the UE carried in the TAU request message is currently located are believed Breath；

First judging unit, the identification information of the base station for being currently located according to the UE, judge the UE position whether It changes；

Updating unit, if the position for the UE changes, according to the identification information of the base station being currently located the UE, The location information of the UE is updated.

10. device according to claim 8, which is characterized in that the update module includes:

Second judgment unit, for the user face of the UE and core net connect keep when, according to the current position the UE Information, judges whether the UE removes the coverage area of former tracing Area TA list；

First determination unit determines the user plane path of the UE when for removing the coverage area of original TA list in the UE It needs to reselect；

Second determination unit when for not moving out the coverage area of former TA list in the UE, judges the user face road of the UE Whether diameter changes, if the user plane path of the UE changes, it is determined that the user plane path of the UE needs again Selection, otherwise, it determines the user plane path of the UE does not need to reselect.

11. device according to claim 10, which is characterized in that the update module includes:

First selecting unit is the UE selection target session pipe when for removing the coverage area of original TA list in the UE Manage function SM；

First transmission unit, for sending the first creation conversation request message to the target SM, the first creation session is asked Ask the location information that the UE is carried in message and the first SM relevant information；

First receiving unit, the first creation conversational response message returned for receiving the target SM, the first creation meeting It is the IP address that the UE is redistributed that the target SM is carried in words response message；

Second transmission unit deletes conversation request message for sending first to the source SM of the UE, and described first deletes session The source IP address and/or User Identity of the UE are carried in request message；

12. device according to claim 10, which is characterized in that the update module includes:

Third transmission unit, for not moving out the coverage area of former TA list, the user plane path generation of the UE in the UE When change, the source SM of Xiang Suoshu UE sends user plane path and modifies instruction message, and the user plane path is modified in instruction message Carry the location information and the 2nd SM relevant information of the UE；

13. device according to claim 8, which is characterized in that the update module includes:

4th transmission unit, for sending the second creation conversation request message to the target SM, the second creation session is asked Ask the location information that the UE is carried in message and the 3rd SM relevant information；

4th receiving unit, the second creation conversational response message returned for receiving the target SM, the second creation meeting It is the IP address that the UE is redistributed that the target SM is carried in words response message；

5th transmission unit deletes conversation request message for sending second to the source SM of the UE, and described second deletes session The source IP address and/or User Identity of the UE are carried in request message；

14. device according to claim 8, which is characterized in that further include:

First return module, for returning to TAU received message to the UE.

15. a kind of method that Idle state tracing Area updates is applied to conversation management functional SM characterized by comprising

Receive the instruction message modified to the user plane path of user equipment (UE) that mobile management function to ps domain MM is sent；Its In, the instruction message is the tracing Area update TAU request message that the MM receives that the UE is sent, and is asked according to the TAU The location information for asking the UE carried in message current, when determining that the position of the UE changes, to the position of the UE Information is updated, and the location information current according to the UE, when determining that the user plane path of the UE needs to reselect The message of transmission；

According to the instruction message, modify to the user plane path of the UE；

Wherein, when in the user face of the UE and core net, connection is not kept, the user plane path needs of the UE are reselected The MM location information current according to the UE, judge the UE whether remove former tracing Area TA list coverage area it is true It is fixed；

16. according to the method for claim 15, which is characterized in that receive setting to user for mobile management function to ps domain MM transmission The step of instruction message that the user plane path of standby UE is modified includes:

The MM is received when the user face of the UE and core net connects holding, the first creation conversation request message of transmission；

According to the location information and the first SM relevant information of the UE carried in the first creation conversation request message, for institute UE selection first object UP, distribution IP address and creation UE context are stated, and generates the first user face configuration-direct；Described first Target UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP；

The first creation conversational response message is returned to the MM.

17. according to the method for claim 15, which is characterized in that receive setting to user for mobile management function to ps domain MM transmission The step of instruction message that the user plane path of standby UE is modified includes:

The MM is received when the user face of the UE and core net connects holding, the first of transmission deletes conversation request message；

The user face release request message for carrying second user face configuration-direct is sent to the first source UP of the UE；Institute Stating the first source UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP；

Receive the user face Release complete that the first source UP is returned；

18. according to the method for claim 15, which is characterized in that receive setting to user for mobile management function to ps domain MM transmission The step of instruction message that the user plane path of standby UE is modified includes:

The MM is received when the user face of the UE and core net connects holding, the user plane path modification instruction of transmission disappears Breath；

The location information of the UE carried in instruction message is modified according to the user plane path and the 2nd SM relevant information is The UE selects the second target UP, and generates third user face configuration-direct；The second target UP includes the side RAN UP and core Net internal UP；

It is sent to the second target UP and carries the user face of third user face configuration-direct and establish request message, and to The source side the DN UP of the UE sends the user face modification request message for carrying third user face configuration-direct；

It receives the user face that the second target UP is returned and establishes the user face modification for completing message and source DN side UP return Complete message；

The location information and the 2nd SM relevant information of the UE carried in instruction message are modified according to the user plane path, it is raw At fourth user face configuration-direct, and the use for carrying fourth user face configuration-direct is sent to the second source UP of the UE Family face discharges request message；The second source UP includes the side RAN UP and core network internal UP；

Receive the user face Release complete that the second source UP is returned；

19. according to the method for claim 15, which is characterized in that receive setting to user for mobile management function to ps domain MM transmission The step of instruction message that the user plane path of standby UE is modified includes:

The MM is received when the connection of the user face of the UE and core net is not kept, the second creation session request of transmission disappears Breath；

According to the location information and the 3rd SM relevant information of the UE carried in the second creation conversation request message, for institute UE selection third target UP, distribution IP address and creation UE context are stated, and generates the 5th user face configuration-direct；The third Target UP includes the side DN UP；

The second creation conversational response message is returned to the MM.

20. according to the method for claim 15, which is characterized in that receive setting to user for mobile management function to ps domain MM transmission The step of instruction message that the user plane path of standby UE is modified includes:

The MM is received when the connection of the user face of the UE and core net is not kept, the second deletion session request of transmission disappears Breath；

The user face release request message for carrying the 6th user face configuration-direct is sent to the third source UP of the UE；Institute Stating third source UP includes the side DN UP；

Receive the user face Release complete that the third source UP is returned；

21. the device that a kind of Idle state tracing Area updates is applied to conversation management functional SM characterized by comprising

Second receiving module, for receiving repairing to the user plane path of user equipment (UE) for mobile management function to ps domain MM transmission The instruction message changed；Wherein, the instruction message is that the MM receives the tracing Area that the UE is sent and updates TAU request and disappears Breath, according to the current location information of the UE carried in the TAU request message, determines that the position of the UE changes When, the location information of the UE is updated, and the location information current according to the UE, determines the user face road of the UE The message sent when diameter needs to reselect；

Modified module, for being modified to the user plane path of the UE according to the instruction message；

22. device according to claim 21, which is characterized in that second receiving module is specifically used for receiving the MM When the user face of the UE and core net connects holding, the first creation conversation request message of transmission；

The modified module includes:

Third selecting unit, for according to the location information of the UE carried in the first creation conversation request message and the One SM relevant information selects first object UP, distribution IP address and creation UE context for the UE, and generates the first user face Configuration-direct；The first object UP includes Radio Access Network RAN side UP, core network internal UP and data network DN side UP；

6th transmission unit, for sending the user face for carrying first user face configuration-direct to the first object UP Establish request message；

23. device according to claim 21, which is characterized in that second receiving module is specifically used for receiving the MM When the user face of the UE and core net connects holding, the first of transmission deletes conversation request message；

The modified module includes:

7th transmission unit, for sending the user for carrying second user face configuration-direct to the first source UP of the UE Face discharges request message；The first source UP includes Radio Access Network RAN side UP, core network internal UP and the side data network DN UP；

Second return unit for deleting the contextual information of the UE, and returns to the first deletion session completion to the MM and disappears Breath.

24. device according to claim 21, which is characterized in that second receiving module is specifically used for receiving the MM When the user face of the UE and core net connects holding, the user plane path of transmission modifies instruction message；

The modified module includes:

4th selecting unit, for according to the user plane path modify the location information of the UE carried in instruction message and 2nd SM relevant information is that the UE selects the second target UP, and generates third user face configuration-direct；The second target UP Including the side RAN UP and core network internal UP；

8th transmission unit, for sending the user face for carrying third user face configuration-direct to the second target UP Request message is established, and sends the user face modification for carrying third user face configuration-direct to the source side the DN UP of the UE Request message；

8th receiving unit establishes completion message and source DN side UP for receiving the user face that the second target UP is returned Message is completed in the user face modification of return；

Second generation unit, for according to the user plane path modify the location information of the UE carried in instruction message and 2nd SM relevant information generates fourth user face configuration-direct, and carries the described 4th to the second source UP of UE transmission The user face of user face configuration-direct discharges request message；The second source UP includes the side RAN UP and core network internal UP；

25. device according to claim 21, which is characterized in that second receiving module is specifically used for receiving the MM When in the user face of the UE and core net, connection is not kept, the second creation conversation request message of transmission；

The modified module includes:

5th selecting unit, for according to the location information of the UE carried in the second creation conversation request message and the Three SM relevant informations select third target UP, distribution IP address and creation UE context for the UE, and generate the 5th user face Configuration-direct；The third target UP includes the side DN UP；

9th transmission unit, for sending the user face for carrying the 5th user face configuration-direct to the third target UP Establish request message；

26. device according to claim 21, which is characterized in that second receiving module is specifically used for receiving the MM When in the user face of the UE and core net, connection is not kept, the second of transmission deletes conversation request message；

The modified module includes:

Tenth transmission unit, for sending the user for carrying the 6th user face configuration-direct to the third source UP of the UE Face discharges request message；The third source UP includes the side DN UP；

5th return unit for deleting the contextual information of the UE, and returns to the second deletion session completion to the MM and disappears Breath.