CN101651588A - Method for selecting gateway, method for establishing connection, related device and communication system - Google Patents
Method for selecting gateway, method for establishing connection, related device and communication system Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for selecting a gateway, a method for establishing connection, a related device and a communication system. The method for selecting the gateway comprises the following steps: receiving a request for connecting a packet data network sent by user equipment, wherein the request for connecting the packet data network comprises a packet data network type requested by the user equipment; acquiring information of the packet data network type supported by a packet data network gateway; and determining the packet data network gateway for the user equipment according to the packet data network type requested by the user equipment and the information of the packet data network type supported by the packet data network gateway. The embodiment of theinvention determines the packet data network gateway for the user equipment according to the packet data network type requested by the user equipment and the information of the packet data network type supported by the packet data network gateway, and can determine the packet data network gateway which supports the packet data network type requested by the user equipment.
Description
Technical field
The present invention relates to communication technical field, relate in particular to gateway selection technology and connection and set up technology.
Background technology
Along with the continuous development of the communication technology, (User Equipment, the demand when UE) carrying out the network connection is also more and more higher for subscriber equipment.
In order to provide one by third generation partner program (Third Generation PartnershipProject, 3GPP) (the Packet Data Network of the Packet Data Network of Jie Ruing, PDN) connect, Mobility Management Entity (Mobility Management Entity, MME) need by grouped data network gateway (PDN Gateway, PGW) selection function is determined a PGW, home subscriber server (Home Subscriber Server, other factor of the CAMEL-Subscription-Information that HSS) provides and some are provided the PGW selection function.
In the prior art, the PDN of UE request connects foundation need transmit a lot of parameters to MME, and MME need carry out PGW and select, and MME and PGW need carry out APN (Access Point Name, APN) limitation function needs to carry out model selection and resource allocation between UE, MME and the PGW.When UE behind the address of network requests PDN type, whether PGW can be the address of the PDN type of UE request for allocation according to certain condition judgment, when PGW can't distribute this type of address, PGW will return cause value to UE, when returning former because when " network preference ", UE can not reattempt the PDN that initiates to set up other PDN type and connect; When returning former because when " only single-address carrying ", UE can attempt initiating parallel PDN establishment of connection, parallel PDN connect be meant have identical APN, the different PDN of different PDN types connect.When PGW allows UE to set up parallel PDN to connect, adopt to be connected similar processing procedure in the prior art with PDN of the prior art.
In realizing process of the present invention, the inventor finds that there is following defective at least in technique scheme:
The selected PGW of MME can't satisfy effective support of UE being asked the PDN type, thereby causes the PDN that can't set up UE request PDN type to connect.
When prior art is set up parallel PDN and connected, transmitted a large amount of identical information between UE and the MME, MME has carried out a large amount of identical processing, thereby causes unnecessary information transmission and processing.
Summary of the invention
The embodiment of the invention provides the selection gateway approach, has connected method for building up and relevant apparatus and communication system, the technical scheme of using the embodiment of the invention to provide, can determine to support the PGW of the PDN type of UE request, can reduce the parameter transmission, simplify processing procedure.
The purpose of the embodiment of the invention is achieved through the following technical solutions:
A kind of selection gateway approach comprises:
Receive Packet Data Network's connection request that subscriber equipment sends, above-mentioned Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Obtain Packet Data Network's type information that grouped data network gateway is supported;
Determine grouped data network gateway for above-mentioned subscriber equipment according to Packet Data Network's type information that the Packet Data Network's type and the above-mentioned grouped data network gateway of above-mentioned user equipment requests are supported.
A kind of selection gateway approach comprises:
Receive Packet Data Network's connection request that subscriber equipment sends, above-mentioned Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Obtain Packet Data Network's type information that grouped data network gateway is supported;
When Packet Data Network's type information of supporting according to the Packet Data Network's type and the above-mentioned grouped data network gateway of above-mentioned user equipment requests can not be determined grouped data network gateway to subscriber equipment, return response message to subscriber equipment, described response message comprises cause description.
A kind of connection method for building up comprises:
Receive the Packet Data Network that subscriber equipment sends and connect the request of foundation, above-mentioned request comprises and has the incidence relation of Packet Data Network between being connected;
From the corresponding context of the existing Packet Data Network connection of preserving, obtain parallel Packet Data Network according to above-mentioned incidence relation and connect the information of setting up needs;
Connect the information of setting up needs according to above-mentioned parallel Packet Data Network and set up the connection of parallel Packet Data Network.
A kind of Mobility Management Entity comprises:
Receiving element is used to receive Packet Data Network's connection request that subscriber equipment sends, and above-mentioned Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Acquiring unit is used to obtain Packet Data Network's type information that grouped data network gateway is supported;
Determining unit, be used for Packet Data Network's type information that Packet Data Network's type of the above-mentioned user equipment requests that receives according to receiving element and above-mentioned grouped data network gateway that acquiring unit gets access to are supported, determine grouped data network gateway to subscriber equipment.
A kind of Mobility Management Entity comprises:
Set up the request receiving element, be used to receive the Packet Data Network that subscriber equipment sends and connect the request of foundation, above-mentioned request comprises and has the incidence relation of Packet Data Network between being connected;
Information acquisition unit is used for obtaining parallel Packet Data Network according to the above-mentioned incidence relation of setting up the reception of request receiving element from the corresponding context of preserving of existing Packet Data Network's connection and connects the information of setting up needs;
Connect and set up the unit, be used for connecting the information of setting up needs and set up the connection of parallel Packet Data Network according to the above-mentioned parallel Packet Data Network that information acquisition unit is obtained.
A kind of communication system comprises:
Subscriber equipment is used for sending Packet Data Network's connection request to Mobility Management Entity, and above-mentioned Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Mobility Management Entity is used to receive Packet Data Network's connection request that subscriber equipment sends, and above-mentioned Packet Data Network connection request comprises Packet Data Network's type of user equipment requests; Obtain Packet Data Network's type information that grouped data network gateway is supported, determine grouped data network gateway to subscriber equipment according to Packet Data Network's type information that the Packet Data Network's type and the above-mentioned grouped data network gateway of above-mentioned user equipment requests are supported.
A kind of communication system comprises:
Subscriber equipment is used for sending Packet Data Network to Mobility Management Entity and connects the request of foundation, and above-mentioned request comprises and has the incidence relation of Packet Data Network between being connected;
Mobility Management Entity is used to receive the Packet Data Network that subscriber equipment sends and connects the request of foundation, and above-mentioned request comprises and has the incidence relation of Packet Data Network between being connected; From the corresponding context of the existing Packet Data Network connection of preserving, obtain parallel Packet Data Network according to above-mentioned incidence relation and connect the information of setting up needs; Connect the information of setting up needs according to above-mentioned parallel Packet Data Network and set up the connection of parallel Packet Data Network.
The above technical scheme that provides from the embodiment of the invention as can be seen, owing to receive the PDN connection request of the PDN type that comprises the UE request, obtain the PDN type information that PGW supports, determine PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.Comprise with the PDN that has the incidence relation of PDN between being connected by reception and to connect the request of foundation, obtain parallel PDN according to incidence relation and connect the information of setting up needs, connect the connection that the information of setting up needs is set up parallel PDN according to parallel PDN, can reduce the parameter transmission, simplify and set up the processing procedure that parallel PDN connects.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart that the embodiment of the invention one is selected gateway approach;
Fig. 2 is the flow chart that the embodiment of the invention two is selected gateway approach;
Fig. 3 is the flow chart that the embodiment of the invention three is selected gateway approach;
Fig. 4 is the flow chart that the embodiment of the invention four connects method for building up;
Fig. 5 is the signaling diagram that the embodiment of the invention five connects method for building up;
Fig. 6 is Mobility Management Entity one schematic diagram of the embodiment of the invention;
Fig. 7 is Mobility Management Entity two schematic diagrames of the embodiment of the invention;
Fig. 8 is the unified composition frame chart of the communication system of the embodiment of the invention;
Fig. 9 is the composition frame chart of the communication system two of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides the selection gateway approach, has connected method for building up and relevant apparatus and communication system, the technical scheme of using the embodiment of the invention to provide, can determine to support the PGW of the PDN type of UE request, can reduce the parameter transmission, simplify processing procedure.
Embodiment one
At first set forth a kind of selection gateway approach, be elaborated below in conjunction with accompanying drawing, referring to Fig. 1, this method may further comprise the steps:
Step 101:MME receives the PDN connection request that subscriber equipment sends, and above-mentioned PDN connection request comprises the PDN type of UE request;
Step 102:MME obtains the PDN type information that PGW supports;
Can be at obtaining the PDN type information that PGW supports the PDN type information that APN supported from the PDN type information that PGW supported self preserved or PGW;
Also can be to inquire about the PDN type information that PGW supported according to the PDN type of UE request to network entity, described network entity comprises the PDN type that PGW supports.Above-mentioned network entity can be name server, subscribed database etc., preserves the PDN type information that PGW supported on network entity.
Step 103:MME determines PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE.
Above-mentionedly determine that to UE PGW can be the scope that PDN type information that PDN type and PGW according to UE request are supported is determined PGW, determines a PGW according to the scope of determining to UE again; Also can be that the PDN type information that PDN type and PGW according to UE request are supported is directly chosen a PGW for UE.
When the PDN type information of being supported according to the PDN type and the PGW of UE request as MME is determined PGW to UE, in case find that one is satisfied the PDN type of UE request and the PGW of the PDN type information that PGW is supported, just can directly select this PGW, and do not need to continue to determine the scope of satisfactory PGW, promptly can directly determine a PGW who meets the demands.
For example, when to the network entity inquiry PDN type information that PGW supported, also may be determined to select the scope of PGW by network entity, the scope that network entity is determined might only comprise a PGW, has promptly directly specified the PGW that selects by network entity.
When determining to select the PGW scope according to the PDN type, might cause the PGW that does not satisfy condition fully, promptly determined scope is empty, can have several processing methods this moment:
MME selects the PGW of default setting or selects PGW according to APN, returns response message to UE, comprises corresponding cause description in the response message; Above-mentioned cause description also can be from PGW, and promptly MME receives the cause description that PGW sends before UE returns response message.For example, be IPv4v6 at the PDN type that UE asked, though this PGW does not support this kind PDN type, but but support PDN type i Pv4 and IPv6 respectively, therefore PGW can initiatively realize the process that two PDN connect, and is respectively IPv4 and IPv6, returns corresponding reason to MME, UE simultaneously.
MME returns refuse information to UE, comprises cause description in the refuse information, and cause description selects the PDN type of UE request corresponding with refusal.
MME revises the PDN type of UE request, according to amended PDN type selecting PGW, returns response message to UE, comprises cause description in the response message, and cause description is with corresponding according to amended PDN type selecting PGW.For example, the PDN type that UE asks is IPv4v6, owing to do not support that the PDN type is the PGW of IPv4v6, may cause that MME is respectively to supporting that the PDN type is IPv4 and supporting that the PDN type is the identical or different PGW initiation request of IPv6.
Present embodiment comprises the PDN connection request of the PDN type of UE request by reception, obtain the PDN type information that PGW supports, determine PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.
Embodiment one has set forth a kind of selection gateway approach, sets forth a kind of PDN type information that PGW supported of preserving on MME below, determines the method for PGW to UE according to the PDN type information that PGW supported.
Embodiment two
Present embodiment is set forth a kind of PDN type information that PGW supported of preserving on MME, determine the method for PGW to UE according to the PDN type information that PGW supported.Be elaborated below in conjunction with accompanying drawing, referring to Fig. 2, this method may further comprise the steps:
Step 201 is identical with step 101, repeats no more herein;
Step 202: preserve the PDN type information that PGW supported on MME, perhaps PGW is at PDN type information that APN supported;
Preserve the PDN type information that PGW supported, multiple mode can be arranged, such as the PDN type information that PGW supported, perhaps PGW is in conjunction with PDN type information that APN supported.
Step 203:MME determines PGW according to the PDN type of the request of the UE in the step 201 and the information in the step 202 to UE.
According to the PDN type information of being asked or according to the PDN type of being asked in conjunction with APN information, the information that the PGW that is preserved among the MME by contrast supports the PDN type is determined PGW to UE.Can be herein according to the PDN type information of being asked or according to the PDN type of being asked in conjunction with APN information, the information of PDN type support is determined the scope of selection by the PGW that is preserved among the contrast MME, from above-mentioned scope, determine a PGW again, also can be when the PDN type information that MME is supported according to the PDN type and the PGW of UE request is determined PGW to UE, in case find that one is satisfied the PDN type of UE request and the PGW of the PDN type information that PGW is supported, just can directly select this PGW, and do not need to continue definite scope of selecting, promptly can directly choose a PGW who meets the demands.
Below to determine that to UE a PGW is that example is elaborated according to scope.
For example, when having preserved the PDN type information that PGW supported among the MME, the PGW that MME can select has PGW1 to PGW8, in MME, preserve PGW1 to PGW5 and supported Internet protocol the 4th version (IPv4), PGW2 to PGW7 supports Internet protocol sixth version this (IPv6), PGW6 to PGW8 supports Internet protocol the 4th and sixth version this (IPv4v6), receive the PDN connection request of UE as MME after, according to the PDN type of wherein request is that the IPv4v6 and the information of being preserved can be judged and selects PGW to suit in PGW6 to PGW8 scope, that is to say according to the PGW that is preserved and supports the information of PDN type to limit selected PGW scope.
For example, when having preserved PGW in conjunction with PDN type information that APN supported among the MME, the PGW that MME can select has PGW1 and PGW2, and the APN that can support has APN1, APN2, APN3.The information of having preserved in MME comprises: PGW1 supports APN1 to APN3, wherein APN1 is supported IPv4, APN2 is supported IPv6, APN3 is supported IPv4 and IPv6; PGW2 only supports APN1, and APN1 is supported IPv4v6.Like this after MME receives the PDN connection request of UE, PDN type according to wherein request is that IPv4v6 can judge that with the APN1 that is asked selection PGW2 suits, and that is to say according to the PGW that is preserved and supports the PDN type information to limit selected PGW scope in conjunction with APN.
Present embodiment comprises the PDN connection request of the PDN type of UE request by reception, from the PDN type information that PGW supported that MME self preserves, obtain the PDN type information that PGW supports, determine PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.
Embodiment two sets forth a kind of PDN type information that PGW supported of preserving on MME, determine the method for PGW to UE according to the PDN type information that PGW supported, set forth a kind of PDN type information that PGW supported of on other network entities, preserving below, MME obtains the PDN type information that PGW supports by inquiry, determines the method for PGW to UE according to the PDN type information that PGW supported.
Embodiment three
Present embodiment is to preserve the PDN type information that PGW supported on other network entities, MME obtains the PDN type information that PGW supports by inquiry, determine the method for PGW to UE according to the PDN type information that PGW supported, be elaborated below in conjunction with accompanying drawing, referring to Fig. 3, this method may further comprise the steps:
Step 301 is identical with step 101, repeats no more herein;
Step 302:MME requester network entity obtains the PDN type information of preserving in the network entity that PGW supported;
Network entity can be name server, subscribed database etc.
Step 303 is identical with step 103, repeats no more herein.
When network entity is inquired about, also might network entity have directly determined to select the scope of PGW, this scope might only comprise a PGW, promptly can directly specify the gateway of selecting by network entity.
Present embodiment comprises the PDN connection request of the PDN type of UE request by reception, the PDN type information of preserving by the requester network entity that PGW supported obtains the PDN type information that PGW supports, determine PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.
Set forth a kind of selection gateway approach above, when the gateway of selecting can not distribute the address of PDN type of UE request, UE can initiate parallel PDN establishment of connection, set forth a kind of connection method for building up below, use this method, can reduce the parameter transmission, the process of setting up between the parallel PDN connection is simplified more.
Embodiment four
Present embodiment is set forth a kind of connection method for building up, is elaborated below in conjunction with accompanying drawing, and referring to Fig. 4, this method may further comprise the steps:
Step 401: receive the PDN that UE sends and connect the request of foundation, above-mentioned request comprises and has the incidence relation of Packet Data Network between being connected;
The PDN connection request of setting up can be contained in the PDN connection and sets up in the request message.
Above-mentioned incidence relation can be in the default bearer of association sign, related bearing identification, the related processing sign any.Promptly connect the special information of use in the request message of setting up at PDN, can allow MME when setting up parallel PDN and connect, connect to existing PDN according to this associating information, thereby obtain relevant information and carry out corresponding processing, equally, MME, gateway (Serving Gateway, SGW) also can in creating the default bearer request, use above-mentioned information, can make SGW, PGW obtain respectively and have the incidence relation of PDN between being connected.
Above-mentioned incidence relation can be APN and parallel indication, perhaps APN, parallel indication and PDN type.Promptly connect and set up the combination of using a plurality of information in the request message, also can make network node obtain and have the incidence relation of PDN between being connected at PDN.
Above-mentioned PDN connects the request of foundation can connect the request of foundation for parallel PDN, and above-mentioned incidence relation is the link information of existing PDN.Promptly use special message, and in special message, carry the link information of existing PDN.
Step 402: from the corresponding context of the existing Packet Data Network connection of preserving, obtain parallel PDN according to above-mentioned incidence relation and connect the information of setting up needs;
Step 403: connect the information of setting up needs according to parallel PDN and set up parallel PDN connection.
Further refinement of step 403, set up parallel PDN and connect and can may further comprise the steps:
Send the default bearer request of creating to gateway, create the default bearer request and comprise above-mentioned incidence relation, above-mentioned gateway is a gateway of selecting existing Packet Data Network to connect according to above-mentioned incidence relation; Receive the establishment default bearer response that above-mentioned gateway sends, create sending after the default bearer response is obtained the information corresponding with creating default bearer by above-mentioned gateway according to above-mentioned incidence relation; Send carrying to the base station of evolution and set up request, the carrying request of setting up comprises described incidence relation; The carrying foundation that the base station of reception evolution sends responds, and carrying foundation response sends after finishing message by the wireless resource control connection reconfiguration of the base station reception UE transmission of evolution.
Present embodiment comprises with the PDN that has the incidence relation of PDN between being connected by reception and connects the request of foundation, obtain parallel PDN according to incidence relation and connect the information of setting up needs, connect the information of setting up needs according to parallel PDN and set up parallel PDN connection, can reduce the parameter transmission, simplify and set up the processing procedure that parallel PDN connects.
Embodiment four has set forth a kind of connection method for building up, and following mask body is introduced the embodiment that a kind of parallel PDN connects method for building up.
Embodiment five,
Referring to Fig. 5, the method for present embodiment may further comprise the steps:
Step 501:UE sends the PDN connection request to MME;
When UE initiated is that parallel PDN connects when setting up, and need carry and the related information of setting up parallel PDN connection.Because parallel PDN has some identical feature between connecting, therefore in message, can reduce the transmission of corresponding parameters information, for example request type simultaneously.In addition, when using " related (default) bearing identification " when information is carried out association, can further reduce the transmission of some information, for example APN, PDN type, this moment, the APN of network acquiescence was identical with existing parallel PDN connection, and the PDN type is then different, for example, the PDN type that connects as existing PDN is IPv4, and then this moment, network acquiescence PDN type was IPv6.
MME can connect from the existing PDN that preserves according to the related information of parallel PDN and obtains or replenish needed information the pairing context, for example request type, APN, PDN type, when additional PDN type information, it is different with existing PDN connection type that MME can give tacit consent to the PDN type.At this moment, MME need not the detection of contracting at APN again.When parallel PDN connects the employing same memory space, then need not the information of carrying out and replenish.
Step 502:MME sends the default bearer request of creating to SGW;
MME can select that PGW and the SGW of existing PDN connection according to the related information of parallel PDN, also can carry and set up the related information that parallel PDN connects in the request message that is sent.Same because parallel PDN has some identical feature between connecting, therefore in message, can reduce the transmission of corresponding parameters information, for example preference pattern, maximum APN limit, switch indication, default bearer service quality, radio access technology types etc.
MME need not to carry out once more APN and selects, and therefore need not to transmit this information.Radio access technology types can be defaulted as existing parallel PDN and connect identical radio access technology types, also need not to transmit.MME, PGW can not use maximum APN limitation function.
Step 503:SGW sends the default bearer request of creating to PGW;
SGW can connect the information of obtaining the pairing context or replenishing necessity, for example default bearer service quality, request type, APN, PDN type etc. from the existing PDN that preserves according to the related information of parallel PDN.In the request message that PGW sent, equally also can carry and set up the related information that parallel PDN connects.Same because parallel PDN has some identical feature between connecting, therefore in message, can reduce the transmission of corresponding parameters information, for example preference pattern, maximum APN limit, switch indication, default bearer service quality, radio access technology types etc.
Step 504:PGW returns to SGW and creates the default bearer response;
PGW can not produce new charging identifier and use employed charging identifier in the existing parallel PDN connection.
PGW can connect the information of obtaining the pairing context or replenishing necessity, for example default bearer service quality, request type, preference pattern, radio access technology types, APN etc. from the existing PDN that preserves according to the related information of parallel PDN.
UE, MME, PGW can use with existing parallel PDN and connect identical carrying control model value, therefore need not carrying control model value is returned to UE, MME.
PGW can not distribute new user's face resource, and user's face resource comprises PGW user's face address and PGW user's face tunnel endpoint identifier, therefore also need not to transmit in message this information.
Step 505:SGW returns to MME and creates the default bearer response;
SGW can not distribute new user's face resource, and user's face resource comprises SGW user's face address and SGW user's face tunnel endpoint identifier, connects identical resource and use with existing parallel PDN, therefore also need not to transmit in message this information.
Step 506:MME sends carrying to the base station of evolution and sets up request;
The APN limitation function may not start.MME can carry and set up the related information that parallel PDN connects, and some information can need not to transmit simultaneously, for example the sign of the credit rating in default bearer service quality and SGW user plane information, the default bearer service quality, the service quality changed etc.
Step 507: the base station of evolution sends wireless resource control connection reconfiguration message to UE;
Step 508:UE returns wireless resource control connection reconfiguration to the base station of evolution and finishes message;
Step 509: the base station of evolution sends carrying to MME and sets up response;
New user's face resource can not distributed in the base station of evolution, user's face resource comprises user's face address, base station of evolution, base station user's face tunnel endpoint identifier of evolution, connect identical resource and use, therefore also need not in message, to transmit this information with existing parallel PDN.
Step 510:MME sends more new bearer request to SGW.
When UE initiated is that parallel PDN connects when setting up, if new user's face resource is not distributed in the base station of evolution, above-mentioned user's face resource comprises user's face address, base station of evolution, base station user's face tunnel endpoint identifier of evolution, and when using the resource identical, need not to transmit this information with existing parallel PDN connection.Transmit under the situation of switching indication need not simultaneously, this step then need not to carry out.
Present embodiment comprises with the PDN that has the incidence relation of PDN between being connected by reception and connects the request of foundation, obtain parallel PDN according to incidence relation and connect the information of setting up needs, the gateway that connects to existing PDN sends the establishment default bearer request that comprises incidence relation, receive the default bearer response that gateway sends, send carrying to the base station of evolution and set up request, response is set up in the carrying that receives the base station transmission of evolution, can reduce the parameter transmission, simplify and set up the processing procedure that parallel PDN connects.
Set forth the selection gateway approach above and be connected method for building up, set forth relevant apparatus below.
Referring to Fig. 6, a kind of MME comprises:
Receiving element 601 is used to receive the PDN connection request that UE sends, and above-mentioned PDN connection request comprises the PDN type of UE request;
Acquiring unit 602 is used to obtain the PDN type information that PGW supports;
Determining unit 603, the PDN type information that PGW supported that PDN type that the UE that is used for receiving according to receiving element 601 asks and acquiring unit 602 get access to is determined PGW to UE.
Wherein, above-mentioned acquiring unit 602 comprises:
Preserve the unit, be used to preserve Packet Data Network's type information that grouped data network gateway is supported, or, Packet Data Network's type information that grouped data network gateway is supported at APN;
Information acquisition unit is used for obtaining Packet Data Network's type information that grouped data network gateway is supported from above-mentioned preservation unit.
Wherein, above-mentioned acquiring unit 602 comprises:
Query unit is used for Packet Data Network's type information of being supported to network entity inquiry packets data network gateway;
The gateway information acquiring unit is used for obtaining Packet Data Network's type information that grouped data network gateway is supported from above-mentioned query unit.
Wherein, above-mentioned determining unit 603 comprises:
The scope determining unit, the Packet Data Network's type information that is used for supporting according to the Packet Data Network's type and the described grouped data network gateway of user equipment requests determines to select the scope of grouped data network gateway;
The gateway determining unit is used for determining grouped data network gateway according to the described scope that above-mentioned scope determining unit is determined to subscriber equipment.
Above-mentioned MME can be used for realizing selecting gateway approach, but is not limited to realize this method.
Referring to Fig. 7, a kind of MME comprises:
Set up request receiving element 701, be used to receive the PDN that UE sends and connect the request of foundation, above-mentioned request comprises and has the incidence relation of PDN between being connected;
Connect and set up unit 703, be used for connecting the information of setting up needs and set up parallel PDN connection according to the parallel PDN that information acquisition unit 702 is obtained.
Above-mentioned MME can be used for realizing connecting method for building up, but is not limited to realize this method.
Set forth relevant apparatus above, set forth communication system below.
Referring to Fig. 8, a kind of communication system comprises:
UE801 is used for sending the PDN connection request to MME802, and above-mentioned PDN connection request comprises the PDN type of UE801 request;
MME802 is used to receive the PDN connection request that UE801 sends, and above-mentioned PDN connection request comprises the PDN type of UE801 request; Obtain the PDN type information that PGW supports, really determine PGW to UE according to the PDN type information that the PDN type and the PGW of UE801 request supported.
Referring to Fig. 9, a kind of communication system comprises:
UE901 is used for sending PDN to MME902 and connects the request of foundation, and above-mentioned request comprises and has the incidence relation of PDN between being connected;
MME902 is used to receive the PDN that UE901 sends and connects the request of foundation, and above-mentioned request comprises and has the incidence relation of PDN between being connected; From the corresponding context of the existing PDN connection of preserving, obtain parallel PDN according to above-mentioned incidence relation and connect the information of setting up needs; Connect the information of setting up needs according to parallel PDN and set up parallel PDN connection.
Wherein, the MME902 in the above-mentioned communication system also is used for sending the request of establishment default bearer to gateway 904, and the request of above-mentioned establishment default bearer comprises above-mentioned incidence relation, and above-mentioned gateway 904 is a gateway of selecting existing PDN to connect according to above-mentioned incidence relation; Receive the establishment default bearer response that gateway 904 sends, send after above-mentioned establishment default bearer response is obtained the information corresponding with creating default bearer by gateway 904 according to above-mentioned incidence relation; Send carrying to the base station 903 of evolution and set up request, the above-mentioned carrying request of setting up comprises above-mentioned incidence relation; Receive the carrying foundation response of base station 903 transmissions of evolution, above-mentioned carrying is set up and is sent after response is finished message by the wireless resource control connection reconfiguration of the base station 903 reception UE901 transmissions of evolution; Above-mentioned communication system also comprises: the base station 903 of evolution, be used for the carrying foundation request that receiving mobility management entity 902 sends, and the above-mentioned carrying request of setting up comprises above-mentioned incidence relation; Send wireless resource control connection reconfiguration message to subscriber equipment 901, the wireless resource control connection reconfiguration that receives subscriber equipment 901 transmissions is finished message, sends carrying to Mobility Management Entity 902 and sets up response; Gateway 904 is used for the establishment default bearer request that receiving mobility management entity 902 sends, and the request of above-mentioned establishment default bearer comprises above-mentioned incidence relation, and above-mentioned gateway is a gateway of selecting existing PDN to connect according to above-mentioned incidence relation; Send the response of establishment default bearer to Mobility Management Entity 902, send after above-mentioned establishment default bearer response is obtained the information corresponding with creating default bearer by gateway according to above-mentioned incidence relation.
The embodiment of the invention is owing to receive the PDN connection request of the PDN type that comprises the UE request, obtain the PDN type information that PGW supports, determine PGW according to the PDN type information that the PDN type and the PGW of UE request supported to UE, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.
The embodiment of the invention comprises with the PDN that has the incidence relation of PDN between being connected by reception and connects the request of foundation, obtain parallel PDN according to incidence relation and connect the information of setting up needs, connect the information of setting up needs according to parallel PDN and set up parallel PDN connection, can reduce the parameter transmission, simplify and set up the processing procedure that parallel PDN connects.
Further, from the PDN type information that PGW supported that MME self preserves, obtain the PDN type information that PGW supports, or the PDN type information of preserving by the requester network entity that PGW supported obtains the PDN type information that PGW supports, can determine to support the PGW of the PDN type of UE request, and then the PDN that can set up the PDN type of UE request connects.
Further, with the incidence relation between existing PDN connects can be by in message, using special information, in message, use the combination of a plurality of information or use special message and carrying parallel with it PDN link information and realize, obtain parallel PDN according to incidence relation and connect the information of setting up needs, connect the information of setting up needs according to parallel PDN and set up parallel PDN connection, can reduce the parameter transmission, simplify and set up the processing procedure that parallel PDN connects.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than to a kind of selection gateway approach that the embodiment of the invention provided, connect method for building up and relevant apparatus and communication system and be described in detail, the explanation of above embodiment just is used for helping to understand method of the present invention and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (21)
1, a kind of selection gateway approach is characterized in that, comprising:
Receive Packet Data Network's connection request that subscriber equipment sends, described Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Obtain Packet Data Network's type information that grouped data network gateway is supported;
Determine grouped data network gateway for described subscriber equipment according to Packet Data Network's type information that the Packet Data Network's type and the described grouped data network gateway of described user equipment requests are supported.
2, selection gateway approach according to claim 1 is characterized in that, the described step of obtaining Packet Data Network's type information that grouped data network gateway supports is specially:
From Packet Data Network's type information that the grouped data network gateway of self preserving is supported, or, from Packet Data Network's type information that the grouped data network gateway self preserved is supported at APN, obtain Packet Data Network's type information that grouped data network gateway is supported.
3, selection gateway approach according to claim 1 is characterized in that, the described step of obtaining Packet Data Network's type information that grouped data network gateway supports is specially:
To Packet Data Network's type information that network entity inquiry packets data network gateway is supported, described network entity comprises Packet Data Network's type that grouped data network gateway is supported.
4, according to each described selection gateway approach of claim 1 to 3, it is characterized in that described Packet Data Network's type information of supporting according to the Packet Data Network's type and the described grouped data network gateway of described user equipment requests determines that the step of grouped data network gateway is specially for described subscriber equipment:
Packet Data Network's type information of supporting according to the Packet Data Network's type and the described grouped data network gateway of described user equipment requests determines to select the scope of grouped data network gateway;
Determine grouped data network gateway for described subscriber equipment according to described scope.
5, according to each described selection gateway approach of claim 1 to 3, it is characterized in that, when Packet Data Network's type information of supporting according to the Packet Data Network's type and the described grouped data network gateway of described user equipment requests determines grouped data network gateway can not for described subscriber equipment, select the grouped data network gateway of default setting.
6, a kind of selection gateway approach is characterized in that, comprising:
Receive Packet Data Network's connection request that subscriber equipment sends, described Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Obtain Packet Data Network's type information that grouped data network gateway is supported;
When Packet Data Network's type information of supporting according to the Packet Data Network's type and the described grouped data network gateway of described user equipment requests determines grouped data network gateway can not for described subscriber equipment, return response message to described subscriber equipment, described response message comprises cause description.
7, selection gateway approach according to claim 6 is characterized in that, described response message is a refuse information, and described cause description selects Packet Data Network's type of user equipment requests corresponding with refusal.
8, selection gateway approach according to claim 6 is characterized in that, also comprises before subscriber equipment returns response message:
Revise Packet Data Network's type of described user equipment requests;
Determine grouped data network gateway according to amended Packet Data Network type;
Described cause description determines that according to amended Packet Data Network type grouped data network gateway is corresponding with described.
9, a kind of connection method for building up is characterized in that, comprising:
Receive the Packet Data Network that subscriber equipment sends and connect the request of foundation, described request comprises and has the incidence relation of Packet Data Network between being connected;
From the corresponding context of the existing Packet Data Network connection of preserving, obtain parallel Packet Data Network according to described incidence relation and connect the information of setting up needs;
Connect the information of setting up needs according to described parallel Packet Data Network and set up the connection of parallel Packet Data Network.
10, connection method for building up according to claim 9 is characterized in that, describedly connects the information of setting up needs according to described parallel Packet Data Network and sets up parallel Packet Data Network step of connecting and be specially:
Send the request of establishment default bearer to gateway, the request of described establishment default bearer comprises described incidence relation, and described gateway is the gateway that connects according to the existing Packet Data Network of the Information Selection of described needs;
Receive the establishment default bearer response that described gateway sends, send after described establishment default bearer response is obtained the information corresponding with creating default bearer by described gateway according to described incidence relation;
Send carrying to the base station of evolution and set up request, the described carrying request of setting up comprises described incidence relation;
Receive the carrying that the base station of evolution sends and set up response, described carrying is set up response and is received by the base station of described evolution and send after wireless resource control connection reconfiguration that described subscriber equipment sends is finished message.
According to claim 9 or 10 described connection method for building up, it is characterized in that 11, the incidence relation between the described and existing Packet Data Network of reception connects be that related default bearer identifies, arbitrary in identifying of related bearing identification and related processing.
According to claim 9 or 10 described connection method for building up, it is characterized in that 12, the incidence relation between the described and existing Packet Data Network of reception connects is the combination in any of APN, parallel indication and Packet Data Network's type.
According to claim 9 or 10 described connection method for building up, it is characterized in that 13, the step that the Packet Data Network that described reception subscriber equipment sends connects the request of foundation is specially:
Receive the parallel Packet Data Network connection request that subscriber equipment sends;
Described incidence relation is the link information of existing Packet Data Network.
14, a kind of Mobility Management Entity is characterized in that, comprising:
Receiving element is used to receive Packet Data Network's connection request that subscriber equipment sends, and described Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Acquiring unit is used to obtain Packet Data Network's type information that grouped data network gateway is supported;
Determining unit, be used for Packet Data Network's type information that Packet Data Network's type of the described user equipment requests that receives according to described receiving element and described grouped data network gateway that described acquiring unit gets access to are supported, determine grouped data network gateway for described subscriber equipment.
15, Mobility Management Entity according to claim 14 is characterized in that, described acquiring unit comprises:
Preserve the unit, be used to preserve Packet Data Network's type information that grouped data network gateway is supported, or, Packet Data Network's type information that grouped data network gateway is supported at APN;
Information acquisition unit is used for obtaining Packet Data Network's type information that grouped data network gateway is supported from described preservation unit.
16, Mobility Management Entity according to claim 14 is characterized in that, described acquiring unit comprises:
Query unit is used for Packet Data Network's type information of being supported to network entity inquiry packets data network gateway;
The gateway information acquiring unit is used for obtaining Packet Data Network's type information that described grouped data network gateway is supported from described query unit.
17, according to each described Mobility Management Entity of claim 14 to 16, it is characterized in that described determining unit comprises:
The scope determining unit, the Packet Data Network's type information that is used for supporting according to the Packet Data Network's type and the described grouped data network gateway of described user equipment requests determines to select the scope of grouped data network gateway;
The gateway determining unit, the described scope that is used for determining according to described scope determining unit determines grouped data network gateway for described subscriber equipment.
18, a kind of Mobility Management Entity is characterized in that, comprising:
Set up the request receiving element, be used to receive the Packet Data Network that subscriber equipment sends and connect the request of foundation, described request comprises and has the incidence relation of Packet Data Network between being connected;
Information acquisition unit, the described incidence relation that is used for receiving according to described foundation request receiving element connects corresponding context from the existing Packet Data Network that preserves and obtains the information that needs are set up in the connection of parallel Packet Data Network;
Connect and set up the unit, be used for connecting the information of setting up needs and set up the connection of parallel Packet Data Network according to the described parallel Packet Data Network that described information acquisition unit is obtained.
19, a kind of communication system is characterized in that, comprising:
Subscriber equipment is used for sending Packet Data Network's connection request to Mobility Management Entity, and described Packet Data Network connection request comprises Packet Data Network's type of user equipment requests;
Mobility Management Entity is used to receive Packet Data Network's connection request that described subscriber equipment sends, and described Packet Data Network connection request comprises Packet Data Network's type of user equipment requests; Obtain Packet Data Network's type information that grouped data network gateway is supported, determine grouped data network gateway for described subscriber equipment according to Packet Data Network's type information that the Packet Data Network's type and the described grouped data network gateway of described user equipment requests are supported.
20, a kind of communication system is characterized in that, comprising:
Subscriber equipment is used for sending Packet Data Network to Mobility Management Entity and connects the request of foundation, and described request comprises and has the incidence relation of Packet Data Network between being connected;
Mobility Management Entity is used to receive the Packet Data Network that described subscriber equipment sends and connects the request of foundation, and described request comprises and has the incidence relation of Packet Data Network between being connected; From the corresponding context of the existing Packet Data Network connection of preserving, obtain parallel Packet Data Network according to described incidence relation and connect the information of setting up needs; Connect the information of setting up needs according to described parallel Packet Data Network and set up the connection of parallel Packet Data Network.
21, communication system according to claim 20, it is characterized in that, described Mobility Management Entity also is used for sending the default bearer request of creating to gateway, the request of described establishment default bearer comprises described incidence relation, and described gateway is a gateway of selecting existing Packet Data Network to connect according to described incidence relation; Receive the establishment default bearer response that described gateway sends, send after described establishment default bearer response is obtained the information corresponding with creating default bearer by described gateway according to described incidence relation; Send carrying to the base station of evolution and set up request, the described carrying request of setting up comprises described incidence relation; Receive the carrying that the base station of evolution sends and set up response, described carrying is set up response and is received by the base station of described evolution and send after wireless resource control connection reconfiguration that described subscriber equipment sends is finished message;
Described communication system also comprises:
The base station of evolution is used to receive the carrying foundation request that described Mobility Management Entity sends, and the described carrying request of setting up comprises described incidence relation; Send wireless resource control connection reconfiguration message to described subscriber equipment, the wireless resource control connection reconfiguration that receives described subscriber equipment transmission is finished message, sends carrying to described Mobility Management Entity and sets up response;
Gateway is used to receive the establishment default bearer request that described Mobility Management Entity sends, and the request of described establishment default bearer comprises described incidence relation, and described gateway is a gateway of selecting existing Packet Data Network to connect according to described incidence relation; Send the response of establishment default bearer to described Mobility Management Entity, send after described establishment default bearer response is obtained the information corresponding with creating default bearer by described gateway according to described incidence relation.
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| CN200810134655A CN101651588A (en) | 2008-08-12 | 2008-08-12 | Method for selecting gateway, method for establishing connection, related device and communication system |
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| CN200810134655A CN101651588A (en) | 2008-08-12 | 2008-08-12 | Method for selecting gateway, method for establishing connection, related device and communication system |
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| CN101651588A true CN101651588A (en) | 2010-02-17 |
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| CN200810134655A Pending CN101651588A (en) | 2008-08-12 | 2008-08-12 | Method for selecting gateway, method for establishing connection, related device and communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102238756A (en) * | 2010-04-28 | 2011-11-09 | 中兴通讯股份有限公司 | Network connection establishing method, device and system |
| WO2012041131A1 (en) * | 2010-09-29 | 2012-04-05 | 中兴通讯股份有限公司 | Method and system for subscriber to participate in establishment of local access connection |
| CN102480772A (en) * | 2010-11-24 | 2012-05-30 | 中兴通讯股份有限公司 | Gateway selection method and gateway selector |
| CN103188650A (en) * | 2011-12-28 | 2013-07-03 | 电信科学技术研究院 | Gateway selection method and equipment |
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| CN102238756A (en) * | 2010-04-28 | 2011-11-09 | 中兴通讯股份有限公司 | Network connection establishing method, device and system |
| WO2012041131A1 (en) * | 2010-09-29 | 2012-04-05 | 中兴通讯股份有限公司 | Method and system for subscriber to participate in establishment of local access connection |
| CN102438328A (en) * | 2010-09-29 | 2012-05-02 | 中兴通讯股份有限公司 | Method and system for user to participate in local access connection establishment |
| CN102438328B (en) * | 2010-09-29 | 2016-01-20 | 中兴通讯股份有限公司 | A kind of user participates in the method and system of local IP access connection establishment |
| CN102480772A (en) * | 2010-11-24 | 2012-05-30 | 中兴通讯股份有限公司 | Gateway selection method and gateway selector |
| WO2012068942A1 (en) * | 2010-11-24 | 2012-05-31 | 中兴通讯股份有限公司 | Gateway selection method and gateway selector |
| CN103188650A (en) * | 2011-12-28 | 2013-07-03 | 电信科学技术研究院 | Gateway selection method and equipment |
| CN104168206B (en) * | 2013-05-20 | 2017-05-17 | 中国电信股份有限公司 | Adapter gateway load balancing control method, device and system |
| CN104168206A (en) * | 2013-05-20 | 2014-11-26 | 中国电信股份有限公司 | Adapter gateway load balancing control method, device and system |
| US10470118B2 (en) | 2014-10-17 | 2019-11-05 | Qualcomm Incorporated | Selection of a serving node in a wireless communication system |
| CN106797554A (en) * | 2014-10-17 | 2017-05-31 | 高通股份有限公司 | The selection of the service node in wireless communication system |
| CN106797554B (en) * | 2014-10-17 | 2020-07-28 | 高通股份有限公司 | Selection of serving node in wireless communication system |
| US11134438B2 (en) | 2014-10-17 | 2021-09-28 | Qualcomm Incorporated | Selection of a serving node in a wireless communication system |
| CN105848249A (en) * | 2015-01-15 | 2016-08-10 | 中兴通讯股份有限公司 | Access point name (APN) processing method, device and system |
| WO2016112680A1 (en) * | 2015-01-15 | 2016-07-21 | 中兴通讯股份有限公司 | Access point name processing method, device and system |
| CN111835857A (en) * | 2020-07-17 | 2020-10-27 | 北京百度网讯科技有限公司 | Method and apparatus for accessing data |
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