CN101552977B - Load creating method and mobility management entity - Google Patents
Load creating method and mobility management entity Download PDFInfo
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Abstract
The embodiment of the invention provides a load creating method and a mobility management entity. The method comprises the following steps: the types of gateway equipment used for load creation are selected for user terminals according to the ability information and the signatory data of the user terminals; and load creation is carried out to the user terminals and the selected gateway equipment. The mobility management entity comprises a selecting module used for selecting the types of the gateway equipment for the user terminals and a handling module used for connecting the user terminals with the gateway equipment in a load creation way. The embodiment of the invention can decide the types of the gateway equipment according to the signatory data and the ability information of the user terminals, and further create a load with the selected gateways, thereby guaranteeing the accuracy of the selected gateway equipment, reducing the error rate, decreasing the operation time delay and improving the operational service quality.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of load creating method and Mobility Management Entity.
Background technology
Fig. 1 is existing radio gradual network structure schematic diagram, and as shown in Figure 1, the core net of wireless evolution network mainly comprises mobile management network element (Mobility Management Entity; Hereinafter to be referred as: MME), Rel-8-SGSN, gateway (Serving SAE Gateway; Hereinafter to be referred as: S-GW) and packet data gateway (PDN SAE Gateway; Hereinafter to be referred as: P-GW) four logic function bodies, wherein MME and Rel-8-SGSN are mobile management net elements, responsible Non-Access Stratum (hereinafter to be referred as: NAS) signaling and NAS signaling are encrypted and are roamed, follow the tracks of distributing user temporary identity sign, safety function etc.S-GW is responsible for the local mobility anchor point and the mobility anchor point and the Lawful Interception relevant information of 3GPP internal system; P-GW then is responsible for strategy execution and charging and Lawful Interception correlation function.
Rel-8-SGSN disposes two socket equipment, is respectively S4 interface and Gn/Gp interface.Wherein the Gn/Gp interface is for the existing gateway device GPRS of compatibility (GeneralPacket Radio Service; Hereinafter to be referred as: GPRS) the support node gateway (hereinafter to be referred as: GGSN), and the S4 interface is after Rel-8-SGSN selects gateway, is used for carrying out alternately with the S-GW gateway.S4 and Gn/Gp interface are distinguished and are, at first the type of message on the distinct interface, cell and general packet radio service tunnel agreement (GPRS Tunneling Protocol; Hereinafter to be referred as: the GTP agreement) version may be different, have the GTPV2 version message on the S4 interface, and the Gn/Gp interface only exist the GTPV0 and the GTPV1 version message of lowest version.GGSN can be directly related with packet data network PDN in addition, but gateway S-GW can only be related with the packet data gateway P-GW that Rel-8-SGSN has selected, related with packet data network PDN by packet data gateway P-GW, self can not be directly related with packet data network PDN.Need consider whether select gateway for Rel-8-SGSN.Generally speaking, Rel-8-SGSN can directly select gateway device GGSN and not select gateway S-GW, use the Gn/Gp interface this moment, also can select to use gateway S-GW related with the gateway device packet data gateway P-GW of selection, uses the S4 interface this moment.In the prior art, the service GPRS universal grouping wireless business supporting node (is called for short: be by APN (Access Point Name SGSN); Hereinafter to be referred as: APN) parsing obtains the gateway device address.SGSN surveys the GTP version information of the other side's gateway device by sending echo (Echo) message, thereby determines self should send the message of what type and GTP release protocol.Yet when using the GTP version information of " Echo " message detection the other side gateway device in the existing technology, error rate is higher, and can cause professional time delay.For surveying GGSN, the method can also be operated, because Rel-8-SGSN directly has the Gn/Gp interface related with GGSN in addition, if but use the method to survey P-GW, then be certain to failure,, need at first select gateway S-GW because Rel-8-SGSN does not have interface direct correlation P-GW.
Summary of the invention
The embodiment of the invention provides a kind of load creating method and Mobility Management Entity, in order to solve in the prior art to connects gateway device information survey and the defective that exists, realize the gateway device type that ability information and subscription data by user terminal determine selection.
The embodiment of the invention provides a kind of load creating method, comprising:
Mobility Management Entity is created the gateway device type of carrying according to the ability information of user terminal and the subscription data of described user terminal for user terminal selecting;
Described Mobility Management Entity and selected gateway device are created carrying;
Described method also comprises:
The location update message that attribution assigned user server receiving mobility management entity sends, described location update message comprise and are used to indicate the parameter type information of the required subscription data of described Mobility Management Entity or the ability information of described user terminal;
Described attribution assigned user server sends corresponding subscription data according to the access Limit Type information in described location update message and the subscription data to described Mobility Management Entity;
Described Mobility Management Entity comprises mobile management network element MME or service GPRS universal grouping wireless business supporting node SGSN; Described gateway device type is GPRS support node gateway or packet data gateway.
In the load creating method and Mobility Management Entity that the embodiment of the invention provides, Mobility Management Entity can be according to the ability information and the subscription data of user terminal, be user terminal selecting gateway device type, and carry out sending the PDP Context solicited message or sending correspondingly processing such as creating the default bearer solicited message to selected gateway to selected gateway device, both guarantee the accuracy of load creating, and avoided professional time-delay.
Description of drawings
Fig. 1 is existing radio gradual network structure schematic diagram;
Fig. 2 is a load creating method embodiment flow chart of the present invention;
Fig. 3 is UE attachment flow signaling embodiment signaling process figure in the load creating method of the present invention;
Fig. 4 upgrades flow implementation example signaling process figure for UE position in the load creating method of the present invention;
Fig. 5 initiates switching flow embodiment signaling process figure for UE in the load creating method of the present invention;
Fig. 6 is a Mobility Management Entity example structure schematic diagram of the present invention.
Embodiment
Further specify the technical scheme of the embodiment of the invention below in conjunction with the drawings and specific embodiments.
Fig. 2 is a load creating method embodiment flow chart of the present invention, and as shown in Figure 2, this method comprises:
Described Mobility Management Entity comprises Rel-8-SGSN or MME, user terminal is (hereinafter to be referred as: ability information UE) the following several method of can having originated, a kind of is to send to Mobility Management Entity at UE to adhere to the ability information that carries user terminal when asking, or sends activation packet data protocol (Packet Data Protocol at UE; Hereinafter to be referred as: PDP) context request or send public data network (hereinafter to be referred as: PDN) during connection request, according to the ability information of the user terminal of preserving in the existing user's context, the ability information of terminal is meant whether terminal is supported in Long Term Evolution (Long Term Evolution; Hereinafter to be referred as: LTE) network insertion.The subscription data information of user terminal is to adhere in the process of request in this terminal, Mobility Management Entity is after HSS sends position updating request, HSS inserts to Mobility Management Entity that the subscription data of user terminal obtains, wherein subscription data can be the subscription data of HSS according to the UE of the indication transmission of Mobility Management Entity, the subscription data of the UE that the subscription data of the UE that can be HSS send according to the release type of Mobility Management Entity can also be HSS to be sent according to the interface type with Mobility Management Entity.
Mobility Management Entity is behind ability information that obtains user terminal and subscription data, just can determine to create the selected gateway device type of carrying, promptly be to select P-GW or select Pre-Rel-8-GGSN to create carrying to connect, can take different processing methods to create carrying according to selected gateway device type then.
Fig. 3 is UE attachment flow embodiment signaling process figure in the load creating method of the present invention, as shown in Figure 3, comprising:
UE sends " Attach Request " Attach Request message to Mobility Management Entity, MME or Rel-8-SGSN, the ability information of carried terminal in the message;
Mobility Management Entity is resolved the type that APN obtains gateway device address information and equipment, if select Pre-Rel-8-GGSN, then sends to Pre-Rel-8-GGSN and creates PDP Context request " Create PDP Context Request " message; If select P-GW, then Mobility Management Entity is selected the S-GW of a service, and sends establishment default bearer request " Create DefaultBearer Request " message, the relevant information of carrying P-GW in the message to it.This moment, Mobility Management Entity need be kept at the type information of sign gateway device in the context of UE, can be the GTP version information, also can characterize with other cell and distinguish different gateway device classifications.
In above-mentioned step 5a, if Mobility Management Entity Rel-8-SGSN, then Rel-8-SGSN sends to UE and adhering to of " Attach Accept " accepts message, Rel-8-SGSN is with reference to the ability information of user terminal and the subscription data of UE, in described subscription data, include default APN information and user and whether allow to connect the 2LTE network information, in message, carry default APN information and give UE; UE can activate the PDP Context about this APN by default APN after attachment flow is finished, because UE must possess bearer context in the LTE network, can guarantee that like this UE switches to the LTE network smoothly; UE does not have bearer context and inserts the LTE network else if, can cause the interruption of current business, influences QoS.Certainly, if UE itself preserves default APN information, the process that activates PDP Context so can be to be initiated by the UE application configuration, also can indicate UE by network side, and promptly UE receives that network side carries default APN information and triggers.
If Mobility Management Entity MME, resolve default APN and obtain corresponding gateway device address and type, if gateway device all is Pre-Rel-8-GGSN, MME sends the refuse information of adhering to of " AttachReject " to UE, indicate UE to reselect access network in the message and adhere to (selecting GERAN/UTRAN), and carry default APN information; If there is P-GW in the gateway device, then MME replys to adhere to UE and accepts message " Attach Accept ", carries default APN information.
More than initiate to adhere to the flow process of request for UE, if being UE, step 1a sends activation PDP Context request message to Mobility Management Entity, for example UE sends request " the Activate PDP Context Request " message that activates PDP Context and arrives Rel-8-SGSN, may also may be to activate new business for activating default bearer.Flow process should directly jump to step 5a this activation PDP Context request message is responded so, promptly returns to UE and activates PDP Context and accept message.If being UE, step 1a sends PDN connection request message to Mobility Management Entity, for example UE sends PDN connection request " PDNConnectivity Request " to MME, it may be the default bearer that activates a PDN network, then this flow process directly jumps to step 5a this PDN connection request message is responded, promptly return PDN and accept message, and carry default APN information to UE.
Introduce the method what type gateway device Mobility Management Entity uses according to the ability information and the subscription data decision of user terminal in conjunction with above-mentioned flow process, specifically can have following several:
Wherein a kind of is in the process that user terminal adheres to, when Mobility Management Entity sends location update request message to HSS, indication HSS inserts required subscription data, HHS increases a signatory person of field indication as indicated and inserts Limit Type in subscription data, user contracting data on the HSS has the cell of an ARD to characterize user's access restriction, increases an option-LTE access and is used for representing whether the user supports to insert the LTE network.When not allowing LTE to insert, mobile management network element MME can refuse UE adhering at the LTE network.
Mobility Management Entity is initiated " Update Location " message to HSS in step 3a, in this message, carry parameter, for example the parameter type information (DataType) of required subscription data or the ability information of terminal, indicate its desired parameter type that obtains, specifically be divided into three kinds of situations:
(1) if UE inserts from the GERAN/UTRAN wireless access system, the ability indicating user terminal of user terminal can not be supported the LTE connecting system, then Rel-8-SGSN can only wish to obtain the 2G/3G parameter in above-mentioned process step 3a indication in " Update Location " that HSS sends, Rel-8-SGSN receives that HSS inserts after the subscription data of 2G/3G parameter, for UE selects Pre-Rel-8-GGSN, and with the gateway direct correlation, do not select S-GW;
(2) if UE inserts from the E-UTRAN wireless access system, and the ability indicating user terminal of user terminal can not be supported the GERAN/UTRAN connecting system, and then MME can send among " the Update Location " of HSS indication at above-mentioned process step 3a and only wishes that obtaining System Architecture Evolution (is called for short: SAE) parameter.MME receives after the subscription data of the SAE parameter that HSS inserts, and is UE selection P-GW, and the selection S-GW related with P-GW;
(3) if the terminal capability indicating user terminal of UE can support GERAN/UTRAN and LTE to insert, then no matter UE from which connecting system inserts, and mobile management network element all sends in " Update Location " message of HSS indication at above-mentioned process step 3a and wishes to obtain simultaneously 2G/3G parameter and SAE parameter.Allow LTE to insert according to inserting Limit Type if insert restriction this moment, presses the mobile management network element request so, and mobile management network element receives that HSS inserts the subscription data of 2G/3G parameter and SAE parameter, for UE selects P-GW, and selects the S-GW of service.Do not allow LTE to insert if insert restriction, HSS may only insert the subscription data of 2G/3G parameter so, and mobile management network element Rel-8-SGSN is that UE selects Pre-Rel-8-GGSN, and with the gateway direct correlation, do not select S-GW; After perhaps Rel-8-SGSN receives the subscription data of 2G/3G parameter, self be translated into SAE Mode,, and select the S-GW of service for UE selects P-GW.Also have, HSS can think that also the rank of mobile management network element (can only be Rel-8-SGSN) requirement is higher, still inserts the subscription data of 2G/3G parameter and SAE parameter, is that UE selects P-GW, and selects the S-GW of service.
In addition under roaming scence, if receiving from local home location register, (is called for short: the HLR) subscription data of Cha Ruing mobile management network element, GPRS (subscription data of R7) subscription data for example, select the gateway device of ownership place, create carrying with the direct correlation of ownership place gateway this moment, send the PDP Context request message to described ownership place gateway device, do not select S-GW.
To be HSS according to the another kind of method of the ability information of user terminal and subscription data decision gateway device type insert different subscription data according to the release type of Mobility Management Entity to Mobility Management Entity, for example Mobility Management Entity is Rel-8-SGSN and MME (Rel-8), HSS inserts packet domain evolution (to be called for short: EPS) subscription data (subscription data of R8), mobile management network element is that UE selects P-GW (adopting EPS QoS model) so, and selects the S-GW of service.
Mobility Management Entity is that HSS inserts different subscription data according to network type according to the another kind of method of the ability information of user terminal and subscription data decision gateway device type: by with the interface of Mobility Management Entity on different agreements, if Mobility Management Entity is MME, then HSS inserts EPS subscription data (subscription data of R8), MME is that UE selects P-GW (adopting EPS QoS model), and selects S-GW; If Mobility Management Entity is SGSN (R7 or R8), then HSS inserts GPRS subscription data (subscription data of R7), Rel-8-SGSN will select suitable gateway device according to the terminal capability of UE, if showing, the terminal capability of UE support LTE to insert, Rel-8-SGSN is that UE selects P-GW (to adopt EPS QoS model so, mapping is finished by Rel-8-SGSN or S-GW), and select S-GW; Otherwise Rel-8-SGSN is UE selects Pre-Rel-8-GGSN, this moment and Pre-Rel-8-GGSN direct correlation, does not select S-GW; If do not consider terminal capability, then can directly select S-GW (adopt EPS QoS model, mapping is finished by Rel-8-SGSN).
The load creating method that the embodiment of the invention provides, Mobility Management Entity can be created the gateway device type of carrying according to the ability information and the subscription data decision of user terminal, and carry out corresponding load creating flow process according to selected gateway device, both guaranteed the accuracy of selected gateway device, and error rate is lower, and professional time-delay is little.
Fig. 4 upgrades flow implementation example signaling process figure for UE position in the load creating method of the present invention, as shown in Figure 4, comprises the steps:
Step 1b, UE send location update request message to the target side Mobility Management Entity;
UE sends " TAU/RAU Request " flow process to the target side mobile management network element;
The target side Mobility Management Entity sends " Context Request " message to obtain the context of UE to the source Mobility Management Entity, and in message, carry cell inquiry gateway device type or GTP version, the cell form can be " GTP request ", " Gateway style " etc.;
The source Mobility Management Entity is replied target side Mobility Management Entity context response " Context Response " message, carry gateway device type or GTP version information in the message, the cell form can be that " GTP indication " comprises the GTP version information;
The target side Mobility Management Entity is replied context acknowledgement message to the source Mobility Management Entity, if the target side Mobility Management Entity is MME, and according to the contextual information of UE find UE only related Pre-Rel-8-GGSN, then in acknowledge message, carry cause value notification source side shifting management entity position and upgrade failure.
The target side Mobility Management Entity is handled accordingly according to the contextual information of UE, and following steps are the pairing process of described different disposal:
Step 7b, target side Mobility Management Entity send the position renewal to UE and accept message;
If the target side Mobility Management Entity is MME, find UE only related Pre-Rel-8-GGSN, this moment also not execution in step 6b send to upgrade refuse information to UE, but delete all bearer contexts, upgrade " EPS bearer status " (indicate all carryings to be released this moment) of accepting will upgrade in the message in the position and send to UE, UE knows that then being associated with Pre-Rel-8-GGSN is discharged by network side.UE can initiatively initiate to adhere to or initiate PDN connection flow process at this moment, perhaps upgrades in the position and accepts to initiate to adhere to or initiate PDN connection flow process by network side notice UE in the message.
Fig. 5 as shown in Figure 5, comprises the steps: for UE in the load creating method of the present invention initiates switching flow embodiment signaling process figure
Step 3c ', target side Mobility Management Entity are if Rel-8-SGSN, after checking the context of UE, carrying for related Pre-Rel-8-GGSN, send and upgrade the PDP Context request to Pre-Rel-8-GGSN, carrying for related P-GW is then handled according to normal flow, even S-GW changes, and then sends to create to carry to ask S-GW; If S-GW is constant, sending more, new bearer request arrives S-GW.
Above embodiment provides user terminal under position renewal and switch instances, the contextual information that target side MME or Rel-8-SGSN send according to source about user terminal, select gateway device, guarantee the accuracy of selected gateway, improve QoS.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 6 is a Mobility Management Entity example structure schematic diagram of the present invention, as shown in Figure 6, this Mobility Management Entity comprises selects module 11 and processing module 12, wherein select module 11 to be used for, create the gateway device type of carrying for user terminal selecting according to the ability information of user terminal and the subscription data of described user terminal; Processing module 12 is used for creating carrying with selected gateway device.Particularly, processing module 12 comprises that first processing module 121 is used for when selected gateway device is GPRS support node gateway, sends packet data protocol context request message to described gateway device; And/or second processing module 122 be used for when selected gateway device is packet data gateway, send to the gateway that is connected with described device gateway and create the default bearer request message.
Selection module 11 in the Mobility Management Entity comprises according to the ability information source of user terminal, the ability information of the terminal that user terminal carries in attachment flow, or in user terminal initiation activation PDP Context request flow process or in PDN connection request flow process, according to the ability information of the user terminal of preserving in the user's context; The subscription data of selecting 11 bases of module is the user's that HSS inserts to mobile management entity in attachment flow a subscription data, the gateway device type that carrying is selected is created in decision, promptly be to select P-GW or select Pre-Rel-8-GGSN, processing module 12 is according to selecting module 11 selected gateway device types, send corresponding message establishing carrying, be specially,, then send the PDP Context request message to Pre-Rel-8-GGSN by first processing module 121 if select Pre-Rel-8-GGSN; If select P-GW, then by second processing module 122 select one is connected with P-GW be the S-GW of its service, and to this S-GW transmission establishment default bearer request message.The ability information of above-mentioned user terminal and subscription data can be responsible for reception by the receiver module in the Mobility Management Entity 13.The subscription data that HSS sends to the user terminal of Mobility Management Entity can send according to Mobility Management Entity indication, can indicate the indicating module 14 of the type of the subscription data that attribution assigned user server sends to finish by being used in the Mobility Management Entity particularly.
The Mobility Management Entity that present embodiment provides, the type that can determine to select for use gateway device according to the subscription data and the ability information of user terminal, and then create carrying with selected gateway, guarantee the accuracy of selected gateway device, reduce error rate, reduce professional time-delay, improve QoS.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. load creating method is characterized in that comprising:
Mobility Management Entity is created the gateway device type of carrying according to the ability information of user terminal and the subscription data of described user terminal for user terminal selecting;
Described Mobility Management Entity and selected gateway device are created carrying;
Described method also comprises:
The location update message that attribution assigned user server receiving mobility management entity sends, described location update message comprise and are used to indicate the parameter type information of the required subscription data of described Mobility Management Entity or the ability information of described user terminal;
Described attribution assigned user server sends corresponding subscription data according to the access Limit Type information in described location update message and the subscription data to described Mobility Management Entity;
Described Mobility Management Entity comprises mobile management network element MME or service GPRS universal grouping wireless business supporting node SGSN; Described gateway device type is GPRS support node gateway or packet data gateway.
2. load creating method according to claim 1 is characterized in that described Mobility Management Entity and selected gateway device establishment carrying comprises:
If selected gateway device is a GPRS support node gateway, described Mobility Management Entity then sends packet data protocol context request message to described gateway device;
If selected gateway device is a packet data gateway, described Mobility Management Entity then sends to the gateway that is connected with described gateway device and creates the default bearer request message.
3. load creating method according to claim 1 and 2 is characterized in that described method also comprises: receive the subscription data of attribution assigned user server according to the described user terminal of the indication transmission of Mobility Management Entity;
Or the reception attribution assigned user server is according to the subscription data of the described user terminal of the release type transmission of Mobility Management Entity;
Or the reception attribution assigned user server is according to the subscription data of the described user terminal of the interface type transmission of described attribution assigned user server and Mobility Management Entity.
4. load creating method according to claim 1 is characterized in that the location update message that described attribution assigned user server receiving mobility management entity sends also comprises before:
Receive the Attach Request message of user terminal, described Attach Request message carries the ability information of described user terminal;
Return to adhere to described user terminal and accept message, described adhering to accepts to comprise in the message default access point network information;
Described user terminal is according to described default access point network information activation block data protocol context.
5. load creating method according to claim 4 is characterized in that described method also comprises:
If described Mobility Management Entity is mobile management network element MME, the gateway device that described mobile management network element MME parsing access point network information obtains is a GPRS support node gateway, then return and adhere to refuse information to described user terminal, indicate described user terminal reselecting network to adhere to, and carry default access point network information;
If the gateway device that described mobile management network element MME parsing access point network information obtains is a packet data gateway, then return to adhere to and accept message to described user terminal, carry default access point network information.
6. load creating method according to claim 1 and 2 is characterized in that describedly according to the ability information of user terminal and the subscription data of described user terminal, also comprises create the gateway device type of carrying for user terminal selecting before:
Receive the activation packet data protocol context request message of user terminal;
Return the message of accepting that activates block data protocol context to described user terminal.
7. load creating method according to claim 1 and 2 is characterized in that describedly according to the ability information of user terminal and the subscription data of described user terminal, also comprises create the gateway device type of carrying for user terminal selecting before:
Receive the public data network connection request message of user terminal;
Return the message of accepting that public data network connects to described user terminal, describedly accept to comprise in the message default access point network information.
8. load creating method according to claim 3, after it is characterized in that the subscription data of described reception attribution assigned user server transmission, according to the ability information of user terminal and the subscription data of described user terminal, the gateway device type of creating carrying for user terminal selecting comprises:
Described service GPRS universal grouping wireless business supporting node SGSN receives the subscription data of described attribution assigned user server according to the indication transmission of described Mobility Management Entity, described subscription data carries the 2G/3G parameter, is described user terminal selecting GPRS support node gateway;
Or described mobile management network element MME receives the subscription data of described attribution assigned user server according to the indication transmission of described Mobility Management Entity, described subscription data carries System Architecture Evolution SAE parameter, is described user terminal selecting packet data gateway;
Or described mobile management network element MME receives the subscription data of described attribution assigned user server according to the indication transmission of described Mobility Management Entity, described subscription data carries 2G/3G parameter and System Architecture Evolution SAE parameter, is described user terminal selecting packet data gateway;
Or described service GPRS universal grouping wireless business supporting node SGSN receives the subscription data of described attribution assigned user server according to the indication transmission of described Mobility Management Entity, described subscription data carries the 2G/3G parameter, described subscription data is converted into the subscription data that carries System Architecture Evolution SAE parameter, and is described user terminal selecting packet data gateway;
Or after receiving the packet domain evolution EPS subscription data of attribution assigned user server, be described user terminal selecting packet data gateway according to the release type transmission of Mobility Management Entity;
Or if described Mobility Management Entity is mobile management network element MME, after receiving the packet domain evolution EPS subscription data of attribution assigned user server, be described user terminal selecting packet data gateway according to the interface type transmission of described attribution assigned user server and Mobility Management Entity;
Or if described Mobility Management Entity is service GPRS universal grouping wireless business supporting node SGSN, after receiving the grouping service wireless support node gateway subscription data of attribution assigned user server, select GPRS support node gateway or packet data gateway according to the ability information of described user terminal according to the interface type transmission of described attribution assigned user server and Mobility Management Entity.
9. load creating method according to claim 1 and 2 is characterized in that describedly according to the ability information of user terminal and the subscription data of described user terminal, and the gateway device type of creating carrying for user terminal selecting comprises:
Receive the subscription data that local home location register sends on visit ground, create carrying, send packet data protocol context request message to described ownership place gateway device for the user selects the ownership place gateway device.
10. load creating method according to claim 1 and 2 is characterized in that also being included in the context of described user terminal and is stored as the selected gateway device type information of described user terminal.
11. load creating method according to claim 1 and 2 is characterized in that also comprising after creating carrying with selected gateway device:
After the target side Mobility Management Entity receives the location update request message of user terminal, send the context request information of described user terminal to the source Mobility Management Entity, described context request information comprises cell, and described cell is used to inquire gateway device type or general packet radio service tunnel protocol version;
Described target side Mobility Management Entity receives the contextual information that described source Mobility Management Entity returns, and described contextual information comprises gateway device type or general packet radio service tunnel protocol version information;
Described target side Mobility Management Entity is accepted or refuses to handle to described location update request message according to described contextual information.
12. load creating method according to claim 11 is characterized in that described target side Mobility Management Entity is accepted or refuse to handle to described location update request message according to described contextual information to comprise:
If described target side Mobility Management Entity is described mobile management network element MME, described mobile management network element MME is known the only related GPRS support node of described user terminal gateway according to described contextual information, then sends the position to described user terminal and upgrades refuse information;
If described mobile management network element MME is known only associated packet data gateway of described user terminal according to described contextual information, then send and create the default bearer request message to the gateway that is connected with described packet data gateway;
If described mobile management network element MME knows that according to described contextual information described user terminal is associated with GPRS support node gateway and packet data gateway, it is invalid that the bearer context of then related GPRS support node gateway is set to, respective carrier is set to deactivation status, sends to the gateway that is connected with described packet data gateway and creates the default bearer request message.
13. load creating method according to claim 11 is characterized in that described target side Mobility Management Entity is accepted or refuse to handle to described location update request message according to described contextual information to comprise:
If described target side Mobility Management Entity is described service GPRS universal grouping wireless business supporting node SGSN, described service GPRS universal grouping wireless business supporting node SGSN is according to described contextual information, GPRS support node gateway to association sends update packet data protocol contexts request message, or sends the establishment bearing request message or upgrade bearing request message to the packet data gateway of association.
14. load creating method according to claim 1 and 2 is characterized in that also comprising after creating carrying with selected gateway device:
Source Access Network managed network element sends handoff request message to the source Mobility Management Entity;
Described source Mobility Management Entity sends the replacement request message to the target side Mobility Management Entity, carries the contextual information of user terminal in the described replacement request message;
Processing is refused or received to described target side Mobility Management Entity according to described contextual information to described handoff request message.
15. load creating method according to claim 14 is characterized in that described target side Mobility Management Entity refuses described handoff request message according to described contextual information or receive to handle to comprise:
If described target side Mobility Management Entity is described mobile management network element MME, described mobile management network element MME is known the only related GPRS support node of described user terminal gateway according to described contextual information, then sends the replacement refuse information to described source Mobility Management Entity;
If described mobile management network element MME is known only associated packet data gateway of described user terminal according to described contextual information, then send and create bearing request message to the gateway that is connected with described packet data gateway;
If described mobile management network element MME knows that according to described contextual information described user terminal is associated with GPRS support node gateway and packet data gateway, it is invalid that the bearer context of then related GPRS support node gateway is set to, respective carrier is set to deactivation status, sends to the gateway that is connected with described packet data gateway and creates the default bearer request message.
16. load creating method according to claim 14 is characterized in that described target side Mobility Management Entity refuses described handoff request message according to described contextual information or receive to handle to comprise:
If described target side Mobility Management Entity is described service GPRS universal grouping wireless business supporting node SGSN, described service GPRS universal grouping wireless business supporting node SGSN is according to described contextual information, GPRS support node gateway to association sends update packet data protocol contexts request message, or sends the establishment bearing request message or upgrade bearing request message to the packet data gateway of association.
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| CN102088757B (en) * | 2009-12-08 | 2014-06-04 | 华为技术有限公司 | Method and device for selecting gateway |
| CN102316436B (en) * | 2010-06-29 | 2016-02-10 | 中兴通讯股份有限公司 | The Activiation method of MTC characteristic, mobile management network element and MTC device |
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| JP6386102B2 (en) * | 2014-06-17 | 2018-09-05 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | MME reselection method and MME |
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