CN102076038A - Method and device for implementing oop initialization prearranged assignment (LIPA) connection switching preparation process - Google Patents
Method and device for implementing oop initialization prearranged assignment (LIPA) connection switching preparation process Download PDFInfo
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Abstract
The invention discloses a method and device for implementing a loop initialization prearranged assignment (LIPA) connection switching preparation process, which is used for realizing the LIPA connection switching preparation process for supporting the LIPA connection switching, thus preferably meeting a demand that a system supports a terminal to establish the LIPA connection switching at a 3GPPRel-11 stage, and realizing supporting the mobility of the terminal in a local gateway. The method for implementing the LIPA connection switching preparation process provided by the invention comprises the following steps: a source home base station determines that the terminal is required to be subjected to the LIPA connection switching; the source home base station determines that a target base station cell type of the LIPA connection switching; and the source home base station executes the LIPA connection switching preparation process for the terminal in accordance with the target base station cell type of the LIPA connection switching.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of local IP and insert manner of execution and the device that (LIPA, Local IPAccess) connects the switching set-up procedure.
Background technology
In 3GPP version 10 (Rel-10) stage, the LIPA in the home base station cells connects the not mobility of support terminal, and promptly network needs the LIPA connection that first deexcitation terminal has been set up before initiating switching for terminal.Yet, in 3GPP version 11 (Rel-11) stage, the mobility that network should support that LIPA connects is proposed, as long as promptly satisfy certain access control condition, network just can connect for portable terminal switches the LIPA that has set up.In addition, the family base station system that 3GPP Rel-11 also will look for novelty and introduce can keep the compatibility with legacy network.But, do not propose to satisfy the technical scheme of the demand in the prior art as yet.
LIPA is that a kind of terminal that allows is linked into the technology of the local network related with this Home eNodeB by Home eNodeB, and local network comprises home network, enterprise network etc.Terminal is by local gateway (LocalGateway, be abbreviated as LGW) be linked into local network, in the 3GPP Rel-10 stage, local gateway and Home eNodeB (H (e) NB) are realized on same physical entity, after the 3GPP Rel-10 stage, local gateway can be realized on different physical entities with Home eNodeB.At present, each Home eNodeB is supported a closed user group (CSG, Closed Subscriber Group) sub-district, and it provides communication service for the user who belongs to this closed user group.
Because the access limited features (for example home network only allows the kinsfolk to insert) of Home eNodeB and local network, network need carry out access control to the terminal of access to family base station and local network, specifically comprises:
The Home eNodeB access control judges promptly whether terminal has authority to pass through certain Home eNodeB (CSG sub-district) access network;
The local network access control judges promptly whether terminal has authority to pass through certain Home eNodeB (CSG sub-district) request and insert specific local network.The local network access control is carried out on the basis of Home eNodeB access control success.
The access control of Home eNodeB and the access control of local network are undertaken by the CAMEL-Subscription-Information of core net management control entity based on terminal.
3GPP Rel-10 version is not supported the mobility that LIPA connects, and when terminal shifted out the coverage of the home base station cells that activates LIPA connection place, this connects needed deexcitation before initiating to switch for terminal.For how deexcitation LIPA connects, the scheme of 3GPP Rel-10 standard employing at present is: Home eNodeB is before carrying out LIPA connection switching, need initiate LIPA by internal interface notice local gateway terminal and connect switching, local gateway initiates to connect deactivation process afterwards, discharges the LIPA that has set up and connects.After LIPA connected deexcitation, Home eNodeB was that terminal is initiated handoff procedure.
In addition, the 3GPP Rel-10 stage also has a kind of scheme that does not enter standard: by Home eNodeB notice core net management control entity before LIPA connects switching, after the core net management control entity is initiated LIPA connection deexcitation, return response message to Home eNodeB, Home eNodeB is initiated LIPA connection handoff procedure more subsequently.In the LTE system, this scheme as shown in Figure 1, mobile management entity (MME wherein, MobilityManagement Entity) is core net management control entity in the LTE system, Evolved UTRAN (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) refers to radio access node at this moment, i.e. Home eNodeB.Specifically comprise:
Step 1, LIPA connection are switched when being about to take place, if the existing LIPA of terminal connects, then Home eNodeB sends the local LIPA of the connection connection switching indication of E-UTRAN (E-UTRAN LocalConnection Handover Indication) to MME, show that being about to take place LIPA this moment connects switching, the target identification that carries in the message (Target ID) shows that LIPA connects the sign of the target BS that switches;
If last IP that this LIPA connection of step 2 is not a terminal connects, then the Packet Data Network of MME initiation MME request discharges (MME requested PDN disconnection) process and discharges this LIPA connection; Otherwise, initiate the attachment removal process;
After step 3, step 2 are finished, MME returns the local LIPA of connection of E-UTRAN to Home eNodeB and connects switching affirmation (E-UTRAN Local Connection Handover ACK) message, expression LIPA connection discharges, be that LIPA connection deactivation process is finished, can carry out LIPA and connect switching.Subsequently, Home eNodeB will be initiated LIPA connection switching according to existing process.
Introduce LIPA below and connect the switching set-up procedure.
3GPP TS 36.413 has defined the switching set-up procedure of LTE system.
As shown in Figure 2, when source evolved base station (eNodeB) is initiated LIPA connection handoff procedure at needs for terminal, initiate to switch set-up procedure by sending handoff request (Handover Required) message, thereby be the terminal reserved resource by core network requests target side sub-district to the MME that service is provided for it.After the switching set-up procedure completed successfully, MME used switching command (Handover Command) message that source eNodeB is responded.
Wherein, comprise eNodeB selected target BS sign in source in the Handover Required message, i.e. target identification (Target ID).In addition, be the situation of Home eNodeB for target BS, also will comprise the CSG id information of selected target BS in the message.
As shown in Figure 3, (for example the carrying can not set up or the access control restriction) if for a certain reason, switching beamhouse operation can not successfully carry out, MME will return to switch and prepare failure (Handover Preparation Failure) message to source eNodeB, wherein carry the failure cause that switches set-up procedure.
In addition, in the SA2#81 meeting, when discussion LIPA connected requiring of switching, also the compatibility to system had proposed demand.
In sum, according to the 3GPP demand, in the 3GPP Rel-11 stage, the LIPA communication function of home base station cells needs support terminal mobility of (Intra-LGW) in local gateway, promptly be connected between the Home eNodeB of same LGW when mobile when terminal, system should be able to connect switching for it carries out LIPA, thereby guarantees the continuity that terminal LIPA data connect.Yet, in 3GPP Rel-10 stage criterion, being moved in case be positioned at the terminal of home base station cells, the LIPA that this terminal is set up connects will connect deactivation process release by the Packet Data Network (PDN) that was introduced separately into before hand-off process.This shows that prior art and standard be the mobility of support terminal in local gateway not.
Summary of the invention
The embodiment of the invention provides a kind of LIPA to connect manner of execution and the device that switches set-up procedure, switch set-up procedure in order to the LIPA connection that realizes supporting LIPA to connect switching, answer support terminal to set up the demand that LIPA connects switching thereby can satisfy 3GPP Rel-11 stage system well, realize the mobility of support terminal in local gateway.
A kind of LIPA that the embodiment of the invention provides connects the manner of execution of switching set-up procedure and comprises:
The source Home eNodeB determines that terminal need carry out LIPA and connect switch;
The source Home eNodeB determines that LIPA connects the type of the target BS sub-district of switching;
The type of the source Home eNodeB target BS sub-district that connection is switched according to LIPA, the LIPA that carries out this terminal connects the switching set-up procedure.
A kind of LIPA that the embodiment of the invention provides connects the manner of execution of switching set-up procedure and comprises:
The core net management control entity is switched message according to the request that the source Home eNodeB sends, and determines the type of target BS sub-district;
The core net management control entity is carried out and is switched set-up procedure according to the type of target BS sub-district.
A kind of LIPA that the embodiment of the invention provides connects the final controlling element that switches set-up procedure and comprises:
Switch determining unit, be used for definite terminal and need carry out LIPA connection switching;
The type determining unit is used for determining that LIPA connects the type of the target BS sub-district of switching;
Switch the set-up procedure performance element, be used for connecting according to LIPA the type of the target BS sub-district of switching, the LIPA that carries out this terminal connects the switching set-up procedure.
A kind of LIPA that the embodiment of the invention provides connects the final controlling element that switches set-up procedure and comprises:
The type determining unit, message is switched in the request that is used for sending according to the source Home eNodeB, determines the type of target BS sub-district;
Switch the set-up procedure performance element, be used for type, carry out for terminal and switch set-up procedure according to the target BS sub-district.
The embodiment of the invention, source Home eNodeB determine that terminal need carry out LIPA and connect switch; The source Home eNodeB determines that LIPA connects the type of the target BS sub-district of switching; The source Home eNodeB connects the type of the target BS sub-district of switching according to LIPA, the LIPA that carries out this terminal connects the switching set-up procedure, thereby realized that the LIPA that supports LIPA to connect switching connects the switching set-up procedure, can satisfy 3GPP Rel-11 stage system well and answer support terminal to set up the demand that LIPA connects switching, realize the mobility of support terminal in local gateway.
Description of drawings
Fig. 1 is in the 3GPP Rel-10 handoff procedure, and the LIPA that Home eNodeB triggers connects the deactivation process schematic diagram;
Fig. 2 is for switching the schematic flow sheet of set-up procedure success;
Fig. 3 is for switching the schematic flow sheet of set-up procedure failure;
A kind of LIPA that Fig. 4 provides for the embodiment of the invention connects the schematic flow sheet of the manner of execution of switching set-up procedure;
Fig. 5 initiates LIPA and connects switching set-up procedure handling process schematic diagram before for source H (e) NB that the embodiment of the invention provides need switch to terminal LIPA connection under the new base station situation;
The core net management control entity that Fig. 6 provides for the embodiment of the invention judges whether terminal establishes the schematic flow sheet that LIPA connects;
The request that the source that receives certainly H (e) NB that Fig. 7 provides for the embodiment of the invention sends is switched after the message, core net management control entity (service universal packet wireless business affair (GPRS, General Packet Radio Service) support node (SGSN, Serving GPRS Support Node), or MME) the handling process schematic diagram;
The handling process schematic diagram of the embodiment one that Fig. 8 provides for the embodiment of the invention;
The handling process schematic diagram of the embodiment two that Fig. 9 provides for the embodiment of the invention;
The handling process schematic diagram of the embodiment three that Figure 10 provides for the embodiment of the invention;
The handling process schematic diagram of the embodiment four that Figure 11 provides for the embodiment of the invention;
A kind of local IP that Figure 12 provides for the embodiment of the invention inserts LIPA and connects the final controlling element schematic diagram that switches set-up procedure;
A kind of local IP that Figure 13 provides for the embodiment of the invention inserts LIPA and connects the final controlling element schematic diagram that switches set-up procedure.
Embodiment
The embodiment of the invention provides a kind of LIPA to connect manner of execution and the device that switches set-up procedure, switch set-up procedure in order to the LIPA connection that realizes supporting LIPA to connect switching, answer support terminal to set up the demand that LIPA connects switching thereby can satisfy 3GPP Rel-11 stage system well, realize the mobility of support terminal in local gateway.
For can support terminal Intra-LGW mobility, the embodiment of the invention proposes a kind of LIPA that supports LIPA to connect switching and connects the handover preparation process scheme, for in the home base station cells scope, having set up the terminal that LIPA connects, when terminal is moved, need carry out LIPA connects when switching, the target BS cell type that the source Home eNodeB will switch to according to terminal is initiated LIPA to core net management control entity (for example, SGSN or MME etc.) and is connected the switching set-up procedure.
After receiving the request switching message that Home eNodeB sends, the core net management control entity is according to what receive, and perhaps local canned data judges whether selected Target cell can continue as terminal and keep the LIPA that has set up to connect.If LIPA connects and can not keep, the core net management control entity is then at first carried out LIPA and is connected deactivation process, returns to switch to the source Home eNodeB afterwards and prepares failed message, and indicate it to initiate to switch set-up procedure again by cause value.If LIPA can keep, then the core net management control entity continues to carry out the switching set-up procedure.
Provide the detailed description of the embodiment of the invention below in conjunction with accompanying drawing.
In base station side, referring to Fig. 4, a kind of local IP that the embodiment of the invention provides inserts LIPA and connects the manner of execution of switching set-up procedure, comprises step:
S101, source Home eNodeB determine that terminal need carry out LIPA and connect switch;
S102, source Home eNodeB determine that LIPA connects the type of the target BS sub-district of switching;
The type of S103, the source Home eNodeB target BS sub-district that connection is switched according to LIPA, the LIPA that carries out this terminal connects the switching set-up procedure.
Preferably, when the target BS sub-district that the LIPA connection is switched is the macro base station sub-district, the type of the source Home eNodeB target BS sub-district that connection is switched according to LIPA, execution is connected the switching set-up procedure with the corresponding LIPA of this terminal, comprising:
The source Home eNodeB triggers LGW and initiates LIPA connection deactivation process by sending a notification message to local gateway LGW;
The source Home eNodeB is when determining that described LIPA connection deactivation process is finished, and the source Home eNodeB switches message by sending request to the core net management control entity, and set-up procedure is switched in initiation.
Preferably, when the target BS sub-district that the LIPA connection is switched is the CSG sub-district, the type of the source Home eNodeB target BS sub-district that connection is switched according to LIPA, execution is connected the switching set-up procedure with the corresponding LIPA of this terminal, comprising:
The source Home eNodeB switches message by sending request to the core net management control entity, initiates to switch set-up procedure.
Preferably, described request is switched in the message, comprises whether the terminal that is used for to the indication of core net management control entity need carry out switching between the base station establishes the information that LIPA connects.
Preferably, this method also comprises:
In switching set-up procedure, when the source Home eNodeB receives the packet data protocol PDP context deactivation operational order for the LIPA connection that the core net management control entity sends, or during Evolved Packet System EPS load bearing deactivation operational order, Home eNodeB deexcitation this LIPA in source connects, and returns response message to the core net management control entity.
Preferably, this method also comprises:
When the source Home eNodeB receives the switching preparation failed message that the core net management control entity sends, and the cause value that wherein carries is that the LIPA that set up of deexcitation is when connecting, the source Home eNodeB is after the deactivating operation of finishing this LIPA connection, switch message by resend request to the core net management control entity, initiate to switch set-up procedure once more.
Figure 5 shows that source H (e) NB need switch to terminal LIPA connection under the new base station situation, initiate LIPA and connect switching set-up procedure main handling process before, specifically comprise step:
S201, source H (e) NB determine that terminal is moved, and need this terminal is switched under the new base station (target BS).
S202, source H (e) NB judge whether the selected target BS of source H (e) NB sub-district is the macro base station sub-district, if, execution in step S203 then; Otherwise, execution in step S206.
S203, source H (e) NB judge whether terminal establishes LIPA and connect, if, execution in step S204 then; Otherwise, execution in step S206.
The LIPA that S204, source H (e) NB notice LGW deexcitation has been set up connects.
S205, source H (e) NB determine to finish LIPA and connect deactivation process.
S206, source H (e) NB initiate to switch set-up procedure.
That is to say that step S202 need judge that target BS is the target BS sub-district of which kind of type, and does subsequent treatment based on this, specifically comprises following two kinds of situations:
Situation A. if the target BS sub-district that source H (e) NB selects be the macro base station sub-district (as, NodeB sub-district, eNodeB sub-district etc.), source H (e) NB is by the internal interface between H (e) NB and the LGW (when H (e) NB and LGW are positioned at same entity) so, or by the external interface between H (e) NB and the LGW, send a notification message to LGW, initiate LIPA connection deactivation process to trigger LGW, discharging the LIPA that has set up connects, then, after confirming that LIPA connects by deexcitation, initiate to switch set-up procedure.
Situation B. is if selected target BS sub-district is CSG sub-district (base station wherein is H (e) NB), and so, source H (e) NB sends request to the core net management control entity and switches message, thereby initiates to switch set-up procedure.
For situation A, after confirming that LIPA connects by deexcitation, source H (e) NB sends request to the core net management control entity and switches message, thereby initiates to switch set-up procedure.Wherein, confirm that LIPA connects by the method for deexcitation, can be that source H (e) NB receives the packet data protocol (PDP for the LIPA connection that the core net management control entity sends, Packet Data Protocol) instruction of context deactivating operation or Evolved Packet System (EPS, Evolved Packet System) load bearing deactivation operational order, also can be to receive that the LIPA that LGW returns connects the deexcitation response message, or the like.
For situation B, alternatively, source H (e) NB can switch in request and increase information unit (for example: the local connection indicates) in the message, is used for whether establishing LIPA to the terminal that the indication of core net management control entity need carry out switching between the base station and connects.
For situation B, in switching set-up procedure, when PDP context deactivation operational order that connects for LIPA that receives that the core net management control entity sends as source H (e) NB or EPS load bearing deactivation operational order, source H (e) NB deexcitation LIPA connects, and returns corresponding response message to the core net management control entity.
Wherein, the described PDP context deactivation operational order that connects for LIPA can be deexcitation PDP Context request (Deactivate PDP Context Request) message;
Described EPS load bearing deactivation operational order can be: deexcitation carrying request (DeactivateBearer Request) message.
For situation B, further, when source H (e) NB receives the switching preparation failed message that the core net management control entity sends, and when the cause value that wherein carries is " (LIPA) PDN connection that deexcitation has been set up ", source H (e) NB is after LIPA connection deactivating operation is finished, resend request to the core net management control entity and switch message, thereby initiate to switch set-up procedure once more.
In core net management control entity side, a kind of local IP that the embodiment of the invention provides inserts LIPA and connects the manner of execution of switching set-up procedure, comprising:
Step 1: the core net management control entity is switched message according to the request that the source Home eNodeB sends, and determines the type of target BS sub-district;
Step 2: the core net management control entity is carried out and is switched set-up procedure according to the type of target BS sub-district.
Preferably, when the target BS sub-district was the macro base station sub-district, the core net management control entity was carried out and is switched set-up procedure according to the type of target BS sub-district, comprising:
The core net management control entity is stipulated according to existing protocol, continues to carry out the switching set-up procedure.
Preferably, when the target BS sub-district was the CSG sub-district, the core net management control entity was carried out and is switched set-up procedure according to the type of target BS sub-district, comprising:
The core net management control entity judges whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection;
When terminal was not set up the LIPA connection, the core net management control entity was stipulated according to existing protocol, continues to carry out the switching set-up procedure of this terminal;
When terminal established the LIPA connection, the core net management control entity judged whether target CS G sub-district can keep the LIPA that has set up to connect;
When target CS G sub-district can keep the LIPA that set up to connect, the core net management control entity stipulated according to existing protocol, and the LIPA that continues to carry out this terminal connects and switches set-up procedure.
Preferably, this method also comprises:
When target CS G sub-district can not keep the LIPA that set up to connect, the core net management control entity judged whether the LIPA that has set up connects is that the unique grouped data network PDN of this terminal connects, if, this terminal of core net management control entity attachment removal then; Otherwise LIPA that the deexcitation of core net management control entity has been set up connects, and returns to switch and prepare failed message and cause value is given the source Home eNodeB.
Preferably, described core net management control entity judges that whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection, comprising:
The core net management control entity is judged in the request switching message of source Home eNodeB transmission, being used to of whether carrying indicates the terminal that need carry out switching between the base station whether to establish the information that LIPA connects, if then judge that according to this information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection; Otherwise the terminal contextual information of inquiry local maintenance judges that according to the terminal contextual information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection.
Core net management control entity described in the embodiment of the invention is SGSN or MME.
That is to say that in the embodiment of the invention, the core net management control entity is after receiving the request switching message that source H (e) NB sends, the core net management control entity is judged the type of target BS sub-district at first according to Target ID in the message and CSGID information.If the target BS sub-district is the macro base station sub-district, the core net management control entity is handled according to the flow process of stipulating in the existing protocol so, promptly continues to carry out the switching set-up procedure.If the target BS sub-district is the CSG sub-district, the core net management control entity should judge at first whether terminal establishes LIPA and connect after executing the Home eNodeB access control so.
Referring to Fig. 6, the core net management control entity is receiving after request that source H (e) NB sends switches message, judges that the handling process whether terminal establishes the LIPA connection may further comprise the steps:
S301, core net management control entity determine that current need to carry out judge whether terminal establishes the operation of LIPA connection.
S302, core net management control entity judge that request that H (e) NB sends switches in the message and whether comprise " local connect indication ", if, execution in step S303 then, otherwise, execution in step S306.
S303, core net management control entity judge whether " local connect indication " shows that terminal set up LIPA and connected, if, execution in step S304 then, otherwise, execution in step S305.
S304, core net management control entity determine that terminal establishes LIPA and connects.
S305, core net management control entity determine that terminal do not set up LIPA and connect.
S306, core net management control entity can judge that wherein whether having indicated terminal to establish LIPA connects by searching the terminal contextual information of local maintenance, if, execution in step S304 then, otherwise, execution in step S305.
For the target BS sub-district is the situation of CSG sub-district, connects if terminal is set up LIPA, and the core net management control entity is then handled according to the flow process of stipulating in the existing protocol, promptly continues to carry out the LIPA connection and switches set-up procedure.Otherwise the core net management control entity connects the access control of startup local network to the LIPA of terminal.
Figure 7 shows that the core net management control entity from the main handling process that the request switching message that receives source H (e) NB transmission begins, may further comprise the steps:
Message is switched in the request that S401, core net management control entity reception sources H (e) NB send.
S402, core net management control entity judge whether Target cell is the CSG sub-district, if, execution in step S403 then; Otherwise, execution in step S410.
S403, core net management control entity judge whether target CS G sub-district allows terminal to insert this target CS G sub-district, if, execution in step S404 then; Otherwise, execution in step S410.
S404, core net management control entity judge whether terminal establishes LIPA and connect, if, execution in step S405 then; Otherwise, execution in step S410.
S405, core net management control entity are according to user signing contract information, and perhaps (for example, Virtual network operator disposes other conditions, network topology structure etc.), whether judgement can connect for terminal keeps the LIPA that has set up in target CS G sub-district, if, execution in step S410 then; Otherwise, execution in step S406.
S406, core net management control entity judge whether will be connected by the LIPA of deexcitation be that the unique PDN that terminal is set up connects, if, execution in step S408 then; Otherwise, execution in step S407.
S407, core net management control entity are initiated LIPA and are connected deactivation process (PDN that PDP context deactivation process (SGSN-initiated PDP Context Deactivation procedure) that SGSN initiates or MME initiate connects dispose procedure (MME requested PDN disconnection procedure)), and the LIPA that deexcitation has been set up connects.
S408, core net management control entity will be initiated attachment removal process (by attachment removal (the SGSN-Initiated Detach procedure) process of SGSN initiation or the attachment removal process (MME-initiated Detach procedure) of MME initiation), with the terminal deexcitation, and stop handoff procedure.
S409, after LIPA connects deexcitation, the core net management control entity sends to switch to source H (e) NB prepares failed message, wherein cause value indicate the former of failure because: (LIPA) PDN that deexcitation has been set up connects.
The switching set-up procedure of existing protocol regulation is carried out in S410, continuation.
Provide the explanation of several specific embodiments below.
Embodiment one
Scene: in source H (e) NB, set up the terminal that LIPA connects, need connect, switched to a sub-district in the target macro base station range from CSG sub-district, source LIPA.
Referring to Fig. 8, idiographic flow may further comprise the steps:
S501, H (e) NB determines that Target cell is the macro base station sub-district.
S502, H (e) NB sends a notification message to LGW, to trigger the LIPA connection that the LGW deexcitation has been set up.
The load bearing deactivation process that S503, the PDP context deactivation process of carrying out Gateway GPRS Support Node (GGSN) initiation or PGW initiate.
S504, H (e) NB receives the response message that LGW sends.
S505, H (e) NB is receiving the response message that LGW sends, or by additive method, determines after the LIPA successful connection deexcitation, and the request of transmission is switched message to the core net management control entity, to initiate switching preparation process.
Embodiment two
Scene: in source H (e) NB, set up the terminal that LIPA connects, need connect, switched to the CSG sub-district that target H (e) NB supports, and system allows terminal to keep the LIPA that has set up to connect by target H (e) NB from CSG sub-district, source LIPA.
Referring to Fig. 9, idiographic flow may further comprise the steps:
S601, H (e) NB sends request and switches message to the core net management control entity, to initiate switching preparation process.
S602, core net management control entity determine that Target cell is the CSG sub-district, and Target cell can connect for terminal keeps the LIPA that has set up.
The switching preparation process of existing protocol regulation is carried out in S603, continuation.
Embodiment three
Scene: in source H (e) NB, set up the terminal that LIPA connects, need switch to the CSG sub-district that target H (e) NB supports, do not kept the LIPA that has set up to connect but system does not allow terminal to pass through target H (e) NB from CSG sub-district, source.And it is not that the unique PDN that terminal is set up connects that this LIPA connects.
Referring to Figure 10, idiographic flow may further comprise the steps:
S701, H (e) NB sends request and switches message to the core net management control entity, to initiate switching preparation process.
S702, core net management control entity determine that Target cell is the CSG sub-district, but Target cell can not connect for terminal keeps the LIPA that has set up.
S703, core net management control entity determine that it is not that the unique PDN of terminal connects that the LIPA that has set up connects.
S704, core net management control entity connect deexcitation with the LIPA that has set up after judging that terminal can not insert local network, promptly carry out the PDP context deactivation process of SGSN initiation or the PDN of MME request and connect deactivation process.
S705, core net management control entity send to switch prepares failed message to H (e) NB, and the failure reason value that wherein carries is " the LIPA connection that deexcitation has been set up ".
S706, after receiving that failed message is prepared in the switching that has this cause value, H (e) NB sends request and switches message to the core net management control entity, to initiate to switch set-up procedure once more.
Embodiment four
Scene: in source H (e) NB, the terminal of having set up the LIPA connection need connect from CSG sub-district, source LIPA, switch to the CSG sub-district that target H (e) NB supports, but system does not allow terminal to pass through target H (e) NB keeps the LIPA that has set up to connect, and this connection is that the unique PDN that terminal is set up connects.
Referring to Figure 11, idiographic flow may further comprise the steps:
S801, H (e) NB sends request and switches message to the core net management control entity, to initiate switching preparation process.
S802, core net management control entity determine that Target cell is the CSG sub-district, but Target cell can not connect for terminal keeps the LIPA that has set up.
S803, core net management control entity determine that it is that the unique PDN of terminal connects that the LIPA that has set up connects.
The attachment removal process that S804, the attachment removal process of carrying out the SGSN initiation or MME initiate, promptly in handoff preparation phase, the core net management control entity is after judging that terminal can not insert local network, with the terminal deexcitation.
Referring to Figure 12, a kind of local IP that the embodiment of the invention provides inserts LIPA and connects the final controlling element that switches set-up procedure, comprising:
Switch set-up procedure performance element 103, be used for connecting according to LIPA the type of the target BS sub-district of switching, the LIPA that carries out this terminal connects the switching set-up procedure.
Preferably, when the target BS sub-district that described type determining unit 102 definite LIPA connect switching was the macro base station sub-district, described switching set-up procedure performance element 103 comprised:
Trigger the deexcitation unit, be used for, trigger LGW and initiate LIPA connection deactivation process by sending a notification message to local gateway LGW;
Initiate the unit, be used for when determining that described LIPA connection deactivation process is finished, switching message, initiate the switching set-up procedure by sending request to the core net management control entity.
Preferably, when the target BS sub-district that described type determining unit 102 definite LIPA connect switching was the CSG sub-district, described switching set-up procedure performance element 103 by send request switching message to the core net management control entity, was initiated the switching set-up procedure.
Preferably, described switching set-up procedure performance element 103, the request of transmission is switched in the message, comprises whether be used for need carrying out the terminal that switch the sub-district between the base station to the indication of core net management control entity establishes the information that LIPA connects.
Preferably, this device also comprises:
The deexcitation processing unit, be used for switching set-up procedure, when receiving the packet data protocol PDP context deactivation operational order that the core net management control entity sends for the LIPA connection, or during Evolved Packet System EPS load bearing deactivation operational order, this LIPA of deexcitation connects, and returns response message to the core net management control entity.Further, the deexcitation processing unit, when receiving the switching preparation failed message that the core net management control entity sends, and when the cause value that wherein carries is designated as LIPA that deexcitation set up and connects, after the deactivating operation that executes this LIPA connection, switch message by resend request to the core net management control entity, initiate to switch set-up procedure once more.
Preferably, this device is the base station.
Referring to Figure 13, a kind of local IP that the embodiment of the invention provides inserts LIPA and connects the final controlling element that switches set-up procedure, comprising:
Switch set-up procedure performance element 202, be used for type, carry out and switch set-up procedure according to the target BS sub-district.
Preferably, when the target BS sub-district that described type determining unit 201 is determined is the macro base station sub-district,
Described switching set-up procedure performance element 202 according to the existing protocol regulation, continues to carry out the switching set-up procedure.
Preferably, when the target BS sub-district that described type determining unit 201 is determined is the CSG sub-district,
Described switching set-up procedure performance element 202 comprises:
First judging unit 301 is used to judge whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection;
Continue performance element 302, be used for when terminal is not set up the LIPA connection,, continuing to carry out the switching set-up procedure of this terminal according to the existing protocol regulation;
Preferably, described switching set-up procedure performance element 202 also comprises:
The 3rd judging unit 304 is used for when target CS G sub-district can not keep the LIPA that set up to connect, and judges whether the LIPA that has set up connects is that the unique grouped data network PDN of this terminal connects, if, this terminal of attachment removal then; Otherwise LIPA that deexcitation has been set up connects, and returns to switch and prepare failed message and cause value is given the source Home eNodeB.
Preferably, described first judging unit 301, the request that judgement source Home eNodeB sends is switched in the message, being used to of whether carrying indicates the terminal that need carry out switching between the base station whether to establish the information that LIPA connects, if then judge that according to this information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection; Otherwise the terminal contextual information of inquiry local maintenance judges that according to the terminal contextual information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection.
Preferably, device shown in Figure 13 can be core net management control entity SGSN or MME.
In sum, the embodiment of the invention has proposed a kind of LIPA of support and has connected the LIPA connection handover preparation process scheme of switching, and can satisfy well the Rel-11 stage, and system answers support terminal to set up the demand that LIPA connects switching.In addition, the LIPA that defines in the technical scheme that the embodiment of the invention proposes and the existing standard connects and switches set-up procedure and merge mutually, thus kept and conventional network equipment between favorable compatibility.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (22)
1. a local IP inserts the manner of execution that LIPA connects the switching set-up procedure, it is characterized in that this method comprises:
The source Home eNodeB determines that terminal need carry out LIPA and connect switch;
The source Home eNodeB determines that LIPA connects the type of the target BS sub-district of switching;
The type of the source Home eNodeB target BS sub-district that connection is switched according to LIPA, the LIPA that carries out this terminal connects the switching set-up procedure.
2. method according to claim 1, it is characterized in that when the target BS sub-district that the LIPA connection is switched was the macro base station sub-district, the source Home eNodeB connected the type of the target BS sub-district of switching according to LIPA, execution is connected with the corresponding LIPA of this terminal switches set-up procedure, comprising:
The source Home eNodeB triggers LGW and initiates LIPA connection deactivation process by sending a notification message to local gateway LGW;
The source Home eNodeB is when determining that described LIPA connection deactivation process is finished, and the source Home eNodeB initiates to switch set-up procedure by sending request switching message to the core net management control entity according to the existing protocol regulation.
3. method according to claim 1, it is characterized in that when the target BS sub-district that the LIPA connection is switched was the CSG sub-district, the source Home eNodeB connected the type of the target BS sub-district of switching according to LIPA, execution is connected with the corresponding LIPA of this terminal switches set-up procedure, comprising:
The source Home eNodeB switches message by sending request to the core net management control entity, initiates to switch set-up procedure.
4. method according to claim 3 is characterized in that, described request is switched in the message, comprises whether the terminal that is used for to the indication of core net management control entity need carry out switching between the base station establishes the information that LIPA connects.
5. according to claim 3 or 4 described methods, it is characterized in that this method also comprises:
In switching set-up procedure, when the source Home eNodeB receives the packet data protocol PDP context deactivation operational order for the LIPA connection that the core net management control entity sends, or during Evolved Packet System EPS load bearing deactivation operational order, Home eNodeB deexcitation this LIPA in source connects, and returns response message to the core net management control entity.
6. method according to claim 5 is characterized in that, this method also comprises:
When the source Home eNodeB receives the switching preparation failed message that the core net management control entity sends, and the cause value that wherein carries is that the LIPA that set up of deexcitation is when connecting, the source Home eNodeB is after the deactivating operation of finishing this LIPA connection, switch message by resend request to the core net management control entity, initiate to switch set-up procedure once more.
7. a local IP inserts the manner of execution that LIPA connects the switching set-up procedure, it is characterized in that this method comprises:
The core net management control entity is switched message according to the request that the source Home eNodeB sends, and determines the type of target BS sub-district;
The core net management control entity is carried out and is switched set-up procedure according to the type of target BS sub-district.
8. method according to claim 7 is characterized in that, when the target BS sub-district was the macro base station sub-district, the core net management control entity was carried out and switched set-up procedure according to the type of target BS sub-district, comprising:
The core net management control entity is stipulated according to existing protocol, continues to carry out the switching set-up procedure.
9. method according to claim 7 is characterized in that, when the target BS sub-district was the CSG sub-district, the core net management control entity was carried out set-up procedure according to the type of target BS sub-district, comprising:
The core net management control entity judges whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection;
When terminal was not set up the LIPA connection, the core net management control entity was stipulated according to existing protocol, continues as this terminal and carries out the switching set-up procedure;
When terminal established the LIPA connection, the core net management control entity judged whether target CS G sub-district can keep the LIPA that has set up to connect;
When target CS G sub-district can keep the LIPA that set up to connect, the core net management control entity stipulated according to existing protocol, continued as this terminal and carried out and switch set-up procedure.
10. method according to claim 9 is characterized in that, this method also comprises:
When target CS G sub-district can not keep the LIPA that set up to connect, the core net management control entity judged whether the LIPA that has set up connects is that the unique grouped data network PDN of this terminal connects, if, this terminal of core net management control entity attachment removal then; Otherwise LIPA that the deexcitation of core net management control entity has been set up connects, and returns to switch and prepare failed message and cause value is given the source Home eNodeB.
11., it is characterized in that described core net management control entity judges that whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection, comprising according to claim 9 or 10 described methods:
The core net management control entity is judged in the request switching message of source Home eNodeB transmission, whether carry and be used to indicate the terminal that to carry out sub-district switching between the base station whether to establish the information that LIPA connects, if then judge that according to this information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection; Otherwise the terminal contextual information of core net management control entity inquiry local maintenance judges that according to the terminal contextual information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection.
12. a local IP inserts LIPA and connects the final controlling element that switches set-up procedure, it is characterized in that this device comprises:
Switch determining unit, be used for definite terminal and need carry out LIPA connection switching;
The type determining unit is used for determining that LIPA connects the type of the target BS sub-district of switching;
Switch the set-up procedure performance element, be used for connecting according to LIPA the type of the target BS sub-district of switching, the LIPA that carries out this terminal connects the switching set-up procedure.
13. device according to claim 12 is characterized in that, when the target BS sub-district that the definite LIPA connection of described type determining unit is switched was the macro base station sub-district, described switching set-up procedure performance element comprised:
Trigger the deexcitation unit, be used for, trigger LGW and initiate LIPA connection deactivation process by sending a notification message to local gateway LGW;
Initiate the unit, be used for when determining that described LIPA connection deactivation process is finished, switching message, initiate the switching set-up procedure by sending request to the core net management control entity.
14. device according to claim 12 is characterized in that, when described type determining unit determines that the target BS sub-district of LIPA connection switching is the CSG sub-district,
Described switching set-up procedure performance element switches message by sending request to the core net management control entity, initiates to switch set-up procedure.
15. device according to claim 14, it is characterized in that, the request that described switching set-up procedure performance element sends is switched in the message, comprises whether be used for need carrying out the terminal that switch the sub-district between the base station to the indication of core net management control entity establishes the information that LIPA connects.
16., it is characterized in that this device also comprises according to claim 14 or 15 described devices:
The deexcitation processing unit, be used for switching set-up procedure, when receiving the packet data protocol PDP context deactivation operational order that the core net management control entity sends for the LIPA connection, or during Evolved Packet System EPS load bearing deactivation operational order, this LIPA of deexcitation connects, and returns response message to the core net management control entity.
17. device according to claim 16, it is characterized in that, described deexcitation processing unit, further, prepare failed message when receiving the switching that the core net management control entity sends, and the cause value that wherein carries is when being designated as LIPA that deexcitation set up and connecting, after executing the deactivating operation that this LIPA connects, switch message by resend request to the core net management control entity, initiate to switch set-up procedure once more.
18. a local IP inserts LIPA and connects the final controlling element that switches set-up procedure, it is characterized in that this device comprises:
The type determining unit, message is switched in the request that is used for sending according to the source Home eNodeB, determines the type of target BS sub-district;
Switch the set-up procedure performance element, be used for type, carry out for terminal and switch set-up procedure according to the target BS sub-district.
19. device according to claim 18 is characterized in that, when described type determining unit determines that the target BS sub-district is the macro base station sub-district,
Described switching set-up procedure performance element according to the existing protocol regulation, continues to carry out the switching set-up procedure.
20. device according to claim 18 is characterized in that, when described type determining unit determines that the target BS sub-district is the CSG sub-district,
Described switching set-up procedure performance element comprises:
First judging unit is used to judge whether need carry out the terminal that switch the sub-district between the base station establishes the LIPA connection;
Continue performance element, be used for when terminal is not set up the LIPA connection,, continue as this terminal and carry out the switching set-up procedure according to the existing protocol regulation;
Second judging unit is used for when terminal establishes the LIPA connection, judges whether target CS G sub-district can keep the LIPA that has set up to connect; When target CS G sub-district can keep the LIPA that set up to connect, trigger described continuation performance element and stipulate according to existing protocol, continue as this terminal and carry out and switch set-up procedure, switch LIPA and connect.
21. device according to claim 20 is characterized in that, described switching set-up procedure performance element also comprises:
The 3rd judging unit is used for when target CS G sub-district can not keep the LIPA that set up to connect, and judges whether the LIPA that has set up connects is that the unique grouped data network PDN of this terminal connects, if, this terminal of attachment removal then; Otherwise LIPA that deexcitation has been set up connects, and returns to switch and prepare failed message and cause value is given the source Home eNodeB.
22. according to claim 20 or 21 described devices, it is characterized in that, described first judging unit, the request that judgement source Home eNodeB sends is switched in the message, whether carry and be used to indicate the terminal that to carry out sub-district switching between the base station whether to establish the information that LIPA connects, if then judge that according to this information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection; Otherwise the terminal contextual information of inquiry local maintenance judges that according to the terminal contextual information needs carry out the terminal that switch the sub-district between the base station and whether establish the LIPA connection.
Priority Applications (2)
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| CN 201110009868 CN102076038B (en) | 2011-01-17 | 2011-01-17 | Method and device for implementing oop initialization prearranged assignment (LIPA) connection switching preparation process |
| PCT/CN2012/070337 WO2012097708A1 (en) | 2011-01-17 | 2012-01-13 | Method and device for performing preparation process for lipa connection handover |
Applications Claiming Priority (1)
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| CN 201110009868 CN102076038B (en) | 2011-01-17 | 2011-01-17 | Method and device for implementing oop initialization prearranged assignment (LIPA) connection switching preparation process |
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| CN102076038A true CN102076038A (en) | 2011-05-25 |
| CN102076038B CN102076038B (en) | 2013-08-14 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012097708A1 (en) | 2012-07-26 |
| CN102076038B (en) | 2013-08-14 |
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