CN107517455A

CN107517455A - Transmission method and device, MME, SGSN of SGwU addresses

Info

Publication number: CN107517455A
Application number: CN201610442558.4A
Authority: CN
Inventors: 涂小勇; 叶敏雅; 刘西亮; 刘卫东
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-06-17
Filing date: 2016-06-17
Publication date: 2017-12-26
Also published as: WO2017215487A1

Abstract

The invention provides a kind of transmission method of SGwU addresses and device, MME, SGSN, wherein, this method includes：In user's switching or tracing section updating, judge whether gateway chain of command SGwC addresses change；If judging, SGwC addresses do not change, judge whether gateway user plane SGwU changes；If judging, SGwU is changed, and the first SGwU addresses are selected from SGwU lists；First SGwU addresses are sent to first service gateway SGW.By the present invention, solve the problems, such as under the scene of gravity treatment data flow can not be supported correctly reliably to transmit in SGwU in correlation technique.

Description

Transmission method and device, MME, SGSN of SGwU addresses

Technical field

The present invention relates to the communications field, a kind of transmission method in particular to SGwU addresses and Device, MME, SGSN.

Background technology

Third generation partner program (3rd Generation Partnership Project, 3GPP) is under The project of generation mobile wireless network System Architecture Evolution (System Architecture Evolution, Abbreviation SAE), SAE framework is as shown in figure 1, wherein contain following network element：

The wireless access network (Evolved RAN, abbreviation E-RAN) of evolution：It can provide higher upper Downstream rate, lower transmission delay and relatively reliable is wirelessly transferred.The net included in E-RAN Member is eNodeB (Evolved NodeB), and Radio Resource is provided for the access of terminal.

Home subscriber server (Home Subscriber Server, abbreviation HSS)：Permanently store user Subscription data.

Mobile management entity (Mobility Management Entity, abbreviation MME)：Chain of command function Entity, the server of interim storage user data, be responsible for and store UE contexts (such as UE/ user identifies, mobility management states, user security parameters etc.), temporary mark is distributed for user, When UE quarters at the tracing area or the network is responsible for authenticating the user；Handle MME All non-access layer informations between UE；Trigger the paging in SAE.

Serving GPRS Support Node (Serving GPRS Support Node, abbreviation SGSN), branch The GPRS of Gb or Iu accesses is held, the server of interim storage user data, is responsible for and stores GPRS Mobility Management GMM contexts and packet data protocol PDP Context；Handle SGSN All non-access layer informations between UE；

Gateway Serving GW (Gateway)：The gateway is a user entity, is responsible for use Family face data route processing, UE of the termination in idle condition downlink data.Management and storage UE SAE carrying (bearer) contexts, such as IP bearer services parameter and network internal route letter Breath etc., is the anchor point in 3GPP system internal user face, and a user can only have one a moment Serving GW；

Packet data network gateway PDN GW, it is responsible for UE accesses PDN gateway, distributing user IP Address, while be 3GPP and the mobility anchor point of non-3 GPP access system.User is in synchronization Have access to multiple PDN GW.

Serving GW and PDN GW are collectively referred to as SAE-GW.

Tactful and conjunction charging regulation function entity (Policy and Charging Rule Functionality, Abbreviation PCRF)：The functional entity is mainly according to business information and user signing contract information and operator Configuration information produces the service quality (Quality of Service, abbreviation Qos) of control user data delivery Rule and charging regulation.The functional entity can also control the foundation and release carried in access network.

With demand growth, whole network system (Evolved Packet System, abbreviation EPS) Gateway progressively generates some constraints.User data stream process concentrates on Packet Data Network (Public Data Network, abbreviation PDN) egress gateways, cause gateway device function numerous and diverse, poor expandability. The chain of command of gateway highly couples with forwarding surface, is unfavorable for core net smooth evolution.Forwarding surface dilatation needs Frequency is asked to be higher than chain of command, close coupling causes chain of command forwarding surface synchronization dilatation, and the renewal of the equipment cycle is short Composite cost is caused to increase.Network layer data forwarding is difficult to user, service feature, is only capable of basis The QoS forwardings of upper layer transfers, cause network resource usage poorly efficient, it is difficult to according to user and traffic performance Data stream is finely controlled.In addition, a large amount of strategies need manual configuration, cause management complexity Increase, operation cost remain high.Therefore, it is necessary to by be grouped domain gateway in control function and forwarding Function further separates, to adapt to the demand of network Development and market application.

Fig. 2 is the frame separated based on GW chains of command under non-roaming scene and user plane in correlation technique Structure schematic diagram.The S/PGW in original EPS frameworks gateway control face has been split into the framework (Gateway Controller, abbreviation GwC) and gateway customer face (Gateway User, abbreviation GwU) Two class functional network elements.

GwC：Including SGwC and PGwC, SGW and PGW chain of command are corresponded to respectively, is born Duty load sharing, GwU selection, the distributing of IP address and Tunnel Identifier, strategy and charging control Etc. function.

GwU：Including SGwU and PGwU, SGW and PGW user plane are corresponded to respectively, is born Blame S/PGW user plane correlation function, including data flow identification and depth Packet analyzing, QoS processing And the function such as bearing binding, the caching of downlink page data.

The user plane and chain of command interface of docking are corresponded on S/PGwC and S/PGwU respectively, remaining The corresponding interface function compares former EPS frameworks.

After GW chains of command and user plane separation, solve many above-mentioned existing for existing EPS gateways Problem, but new technical problem is have also been introduced simultaneously, for example, causing existing handover mechanism in part The correct reliable transmission of data flow can not be supported under scene.

Mechanism in correlation technique, MME carry out SGW's according to customer location and signing information etc. Selection.When customer location is moved initiation switching and tracing section updating flow, MME judgements are The no gravity treatment for needing to carry out SGW, and carry out the letter of SGW selections and up-downgoing data transfer path Breath renewal.If judge to need the gravity treatment for carrying out SGW, according to the positional information after renewal and signing Information reselects suitable SGW, and by the SGW uplink users face address newly selected and tunnel mark The information such as knowledge are sent to eNodeB, update upstream data transmitting path information, it is ensured that upstream data Correct transmission.And by new eNodeB information, such as eNodeB downlink users face address and tunnel Mark is sent to SGW, updates downlink data transmitting path information, ensures the correct biography of downlink data Send.If SGW gravity treatment need not be carried out, by current SGW uplink user face address and The information such as Tunnel Identifier are sent to new eNodeB, and by new eNodeB downlink users face address and Tunnel Identifier sends current SGW to, carries out the reconstruction of up-downgoing data channel.In switching flow, Whether MME changes and whether can support that the correct transmission problem of data flow is unrelated, can refer to existing Mechanism processing, expansion description is not done herein.

After SGW chains of command and user plane functions separate, GW that MME is carried out according to current mechanism Selection is really GWC selection, is responsible for carrying out GWU in its corresponding GWU group by GWC Selection and management.Then according to mechanism as described above, it need not switch in GWC but GWU can be weighed The correct forwarding of data can not be then realized under the scene of choosing.For example, the switching flow based on S1.MME After the handover request message for receiving former eNodeB, MME judges that SGW need not change, i.e. SGwC Do not change, it will current SGwU addresses and Tunnel Identifier are handed down to new eNodeB, then newly ENodeB get be not necessarily final SGwU addresses and Tunnel Identifier, if subsequently SGwU has carried out gravity treatment, then up-downgoing data channel establishes mistake.Then upstream data reaches eNodeB Can be transmitted afterwards toward old SGwU, may lead to not with after SGwU is connected or SGwU is received Abandon, lead to not correctly upload, the continuity of business and the integrality of data can not be ensured.

Therefore, after GW chains of command and user plane separate, the MME in correlation technique judges SGW The correct reliable transmission of data flow can not be supported under the scene of part by whether changing mechanism, can not be ensured The continuity and integrality of business.Similarly, SGSN there is also it is similar the problem of.

For the above-mentioned technical problem in correlation technique, effective solution is not yet proposed at present.

The content of the invention

The embodiments of the invention provide a kind of transmission method of SGwU addresses and device, MME, SGSN, at least to solve that data flow can not be supported under the scene of gravity treatment in SGwU in correlation technique The problem of correct reliable transmission.

According to one embodiment of present invention, there is provided a kind of transmission method of SGwU addresses, including： In user's switching or tracing section updating, judge whether gateway chain of command SGwC addresses become Change；If judging, SGwC addresses do not change, judge that gateway user plane SGwU is No change；If judging, SGwU is changed, and the first SGwU is selected from SGwU lists Address；First SGwU addresses are sent to first service gateway SGW.

Alternatively, judge SGwU whether change including：With judging the first SGW current SGwU Whether location is in SGwU lists；If current SGwU addresses are judged in SGwU lists SGwU does not change；If SGwU is judged in current SGwU addresses not in SGwU lists Change.

Alternatively, judge the first SGW current SGwU addresses whether in SGwU lists it Before, judging whether SGwU changes also includes：According to the current location of terminal construction and current location pair The full name domain name (Fully Qualified Domain Name, abbreviation FQDN) answered；According to FQDN Parse SGwU lists.

Alternatively, current location includes：Tracking area TA and/or Route Area RA.

Alternatively, when judging that the first SGW current SGwU addresses are whether in SGwU lists, Also include:Using direct NAPTR (Strsightforword Naming Authority Pointer, Abbreviation S-NAPTR) query process, whether inquiry the first SGW current SGwU addresses In the SGwU lists；Wherein, the service parameter in query process is arranged to be used for searching and worked as SGwU addresses corresponding to front position.

Alternatively, the first SGwU addresses are selected to include from SGwU lists：Arranged according to SGwU In table each SGwU information select the first SGwU addresses, wherein, information include it is following at least One of：Priority, weight.

Alternatively, after the first SGwU addresses are sent into the first SGW, in addition to：Instruction First SGW establishes SGwU user planes resource corresponding with the first SGwU addresses；Instruction first SGW deletes SGwU user planes resource corresponding with the first SGW current SGwU addresses.

Alternatively, after the first SGwU addresses are sent into the first SGW, in addition to：First SGW according to the first SGwU addresses after determining that SGwU changes, by the first SGwU Location is sent to mobile management unit MME and node eNodeB.

Alternatively, after judging whether SGwC addresses change, in addition to：If judge SGwC addresses are changed, then the 2nd SGwU addresses are selected from SGwU lists；By second SGwU addresses are sent to the 2nd SGW, wherein, the first SGW be change before SGW, second SGW is the SGW after changing.

Alternatively, the 2nd SGwU addresses are selected to include from SGwU lists：Arranged according to SGwU In table each SGwU information select the 2nd SGwU addresses, wherein, information include it is following at least One of：Priority, weight.

Alternatively, after the 2nd SGwU addresses are sent into the 2nd SGW, in addition to：Second 2nd SGwU addresses are sent to MME and eNodeB by SGW.

Alternatively, in addition to：User attachment or grouped data network PDN connection establish when or with During the first time packet data protocol (PDP) activating of family, SGwC addresses are selected；According to SGwU lists In each SGwU information select the 3rd SGwU addresses, wherein, information include it is following at least it One：Priority, weight；3rd SGwU addresses are sent to the first SGW.

Alternatively, method is by MME or service general grouping service wireless GPRS Support Node SGSN Perform.

Alternatively, gateway GW chains of command and the separation of GW user planes.

According to another embodiment of the invention, there is provided a kind of transmitting device of SGwU addresses, bag Include：First judge module, in user's switching or tracing section updating, judging gateway control Whether face SGwC addresses change；Second judge module, if for judging SGwC addresses Do not change, then judge whether gateway user plane SGwU changes；First choice module, use If in judging that SGwU changes, the first SGwU addresses are selected from SGwU lists； First sending module, for the first SGwU addresses to be sent into first service gateway SGW.

Alternatively, the second judge module be additionally operable to judge the first SGW current SGwU addresses whether In SGwU lists；If SGwU is judged in current SGwU addresses in SGwU lists Do not change；If current SGwU addresses not in SGwU lists, judge that SGwU is sent out Changing.

Alternatively, the second judge module is additionally operable to according to the current location of terminal construction and current location pair The full name domain name FQDN answered；SGwU lists are parsed according to FQDN.

Alternatively, the second judge module is also used for direct NAPTR S-NAPTR inquiries Process, the current SGwU addresses of the first SGW are inquired about whether in the SGwU lists； Wherein, service parameter in query process is arranged to be used for searching SGwU corresponding to current location Location.

Alternatively, selecting module is additionally operable to be selected according to the information of each SGwU in SGwU lists First SGwU addresses, wherein, information includes at least one of：Priority, weight.

Alternatively, device also includes：First indicating module, for indicating that the first SGW is established and the SGwU user plane resources corresponding to one SGwU addresses；Second indicating module, for indicating first SGW deletes SGwU user planes resource corresponding with the first SGW current SGwU addresses.

Alternatively, device also includes：Second sending module, in the first SGW according to first After SGwU addresses determine that SGwU changes, the first SGwU addresses are sent to moving tube Manage unit MME and node eNodeB.

Alternatively, device also includes：Second selecting module, if for judging that SGwC addresses occur Change, then the 2nd SGwU addresses are selected from SGwU lists；3rd sending module, for inciting somebody to action 2nd SGwU addresses are sent to the 2nd SGW, wherein, the first SGW is the SGW before changing, 2nd SGW is the SGW after changing.

Alternatively, the second selecting module is additionally operable to the information according to each SGwU in SGwU lists The 2nd SGwU addresses are selected, wherein, information includes at least one of：Priority, weight.

Alternatively, device also includes：3rd selecting module, in user's attachment or Packet Data Network When PDN connections are established or in user's first time packet data protocol (PDP) activating, SGwC is selected Address；4th selecting module, for the information selection the according to each SGwU in SGwU lists Three SGwU addresses, wherein, information includes at least one of：Priority, weight；4th sends Module, for the 3rd SGwU addresses to be sent into the first SGW.

Alternatively, device is MME or SGSN.

According to another embodiment of the invention, there is provided a kind of mobile management unit MME, including The transmitting device of above-mentioned SGwU addresses.

According to another embodiment of the invention, there is provided service general grouping service wireless GPRS branch Serve as a diplomatic envoy point SGSN, includes the transmitting device of above-mentioned SGwU addresses.

According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set It is set to the program code that storage is used to perform following steps：In user's switching or tracing section updating, sentence Whether disconnected gateway chain of command SGwC addresses change；If judging, SGwC addresses are not sent out Changing, then judge whether gateway user plane SGwU changes；If judge SGwU Change, then the first SGwU addresses are selected from SGwU lists；First SGwU addresses are sent Give first service gateway SGW.

By the present invention, due to not changed in SGwC addresses, and when SGwU changes, The first SGwU addresses are selected from SGwU lists, the first SGwU addresses are then sent to the One gateway SGW, i.e., the new SGwU addresses of selection one are sent when SGwU changes To the first SGW, and then cause SGwU that when being retransmitted, final SGwU addresses can be obtained, It can ensure that data flow is correctly uploaded, therefore, it is possible to solve to weigh in SGwU in correlation technique The problem of data flow can not being supported correctly reliably to transmit under the scene of choosing, and then ensure that the company of business Continuous property and integrality.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the one of the application Part, schematic description and description of the invention are used to explain the present invention, not formed to this hair Bright improper restriction.In the accompanying drawings：

Fig. 1 is the configuration diagram of the SAE in correlation technique；

Fig. 2 is the frame separated based on GW chains of command under non-roaming scene and user plane in correlation technique Structure schematic diagram；

Fig. 3 is the flow chart of the transmission method of SGwU addresses according to embodiments of the present invention；

Fig. 4 is the flow chart one of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Fig. 5 is the flowchart 2 of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Fig. 6 is the flow chart 3 of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Fig. 7 is the flow chart four of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Fig. 8 is the flow chart five of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Fig. 9 is the flow chart six of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Figure 10 is the flow chart seven of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Figure 11 is the flow chart eight of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Figure 12 is the flow chart nine of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Figure 13 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention；

Figure 14 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention One；

Figure 15 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Two；

Figure 16 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Three；

Figure 17 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Four；

Figure 18 is the structured flowchart of the transmitting device of SGwU addresses according to embodiments of the present invention.

Embodiment

Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that In the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that the term in description and claims of this specification and above-mentioned accompanying drawing " first ", " second " etc. be for distinguishing similar object, without for describe specific order or Precedence.

Embodiment 1

The embodiment of the present application can be run in the network architecture shown in Fig. 2, as shown in Fig. 2 the net In network framework, chain of command and user plane separation in GW, specifically, SGw chains of command and user plane Function separates, PGw chains of command and user plane separation.

A kind of transmission method for the SGwU addresses for running on the network architecture is provided in the present embodiment, Fig. 3 is the flow chart of the transmission method of SGwU addresses according to embodiments of the present invention, as shown in figure 3, The flow comprises the following steps：

Step S302, in user's switching or tracing section updating, judge gateway chain of command SGwC Whether address changes；

Step S304, if judging, SGwC addresses do not change, judge gateway user Whether face SGwU changes；

Step S306, if judging, SGwU is changed, and first is selected from SGwU lists SGwU addresses；

Step S308, the first SGwU addresses are sent to first service gateway SGW.

By above-mentioned steps, due to not changed in SGwC addresses, and SGwU changes When, the first SGwU addresses are selected from SGwU lists, then send the first SGwU addresses First service gateway SGW is given, i.e., a new SGwU address is selected when SGwU changes When being sent to the first SGW, and then make it that SGwU is retransmitted, final SGwU can be obtained Address, it is ensured that data flow is correctly uploaded, therefore, it is possible to solve in correlation technique in SGwU The problem of data flow can not being supported correctly reliably to transmit under the scene of meeting gravity treatment, and then ensure that business Continuity and integrality.

In one embodiment of the invention, above-mentioned steps S302 can be shown as, and take current service SGwC associations TA lists, and the TA that terminal (UE) is currently located compares, if the TA The TA that is currently located in list comprising UE, then SGwC addresses do not change, otherwise SGwC Location is changed；Or the TA being currently located according to UE, go on dns server to parse SGwC lists, if the SGwC lists of parsing include the SGwC, SGwC of UE current services Address does not change, and otherwise, SGwC addresses are changed.

In one embodiment of the invention, above-mentioned steps S304 can be shown as：Judge the first SGW Current SGwU addresses whether in SGwU lists；If current SGwU addresses arrange in SGwU In table, then judge that SGwU does not change；If current SGwU addresses are not in SGwU lists In, then judge that SGwU changes.

It should be noted that judging the first SGW current SGwU addresses whether in SGwU row Before in table, above-mentioned steps S304 can also include：According to the current location of terminal construction and currently The full name domain name FQDN of position correspondence；SGwU lists are parsed according to FQDN.

It should be noted that above-mentioned current location can be tracking area TA and/or Route Area RA, but It is not limited to this.

When whether the above-mentioned current SGwU addresses for judging the first SGW are in SGwU lists, may be used also With including：Using direct NAPTR S-NAPTR query process, the first SGW is inquired about Current SGwU addresses whether in the SGwU lists；Wherein, the service in query process Parameter is arranged to be used for searching SGwU addresses corresponding to current location.Can than such as above-mentioned service parameter To be arranged to " x-3gpp-sgwu：x-s4-u”.

In one embodiment of the invention, above-mentioned steps S306 can be shown as：According to SGwU Each SGwU information selects the first SGwU addresses in list, wherein, information is included below extremely It is one of few：Priority, weight., can be according to each in SGwU lists i.e. when SGwU changes The information such as individual SGwU priority, weight select above-mentioned first SGwU addresses.Using priority as Example, the above-mentioned SGwU addresses of selection the first can be for according to SGwU priority, selection priority SGwU addresses corresponding to highest SGwU can also select as above-mentioned first SGwU addresses SGwU addresses corresponding to the minimum SGwU of priority as above-mentioned first SGwU addresses, or , can be by preferentially after SGwU addresses are selected corresponding to SGwU in highest priority SGwU addresses corresponding to the SGwU that is number two of level are as above-mentioned first SGwU addresses, but simultaneously Not limited to this.For selecting the scheme of the first SGwU addresses and priority class seemingly according to weight information, Here is omitted.

It should be noted that above-mentioned selection mode can consider priority and weight to select One SGwU addresses, such as, first according to priority the SGwU of highest priority can be selected corresponding SGwU addresses, and select highest priority SGwU corresponding to SGwU addresses more than one It is individual, can be further according to SGwU corresponding to SGwU of the size from the highest priority of selection of weight SGwU addresses corresponding to a SGwU are selected in address as the first SGW, but are not limited to This, first can also select according to weight, be selected further according to priority.

In one embodiment of the invention, after above-mentioned steps S308, the above method can be with Including：Indicate that the first SGW establishes SGwU user planes resource corresponding with the first SGwU addresses； Indicate that the first SGW deletes SGwU user planes corresponding with the first SGW current SGwU addresses Resource.After it have selected the first SGwU addresses, it can establish corresponding with the first SGwU addresses SGwU user plane resources, and delete SGwU corresponding with the first SGW current SGwU addresses User plane resource, i.e., after it have selected new SGwU addresses, establish new SGwU user planes money Source, delete old SGwU user plane resources.

In one embodiment of the invention, after above-mentioned steps S308, the above method can be with Including：First SGW according to the first SGwU addresses after determining that SGwU changes, by One SGwU addresses are sent to mobile management unit MME and node eNodeB.By the first SGwU Address is sent to MME and eNodeB, it is possible to achieve the correct upload of data, ensures the company of business The integrality of continuous property and data.

In one embodiment of the invention, after above-mentioned steps S302, the above method can be with Including：If judging, SGwC addresses are changed, and the 2nd SGwU is selected from SGwU lists Address；2nd SGwU addresses are sent to the 2nd SGW, wherein, before the first SGW is changes SGW, the 2nd SGW be change after SGW.In the case of being changed in SGwC addresses, From SGwU lists the 2nd SGwU addresses can be selected to be sent to the 2nd SGW, i.e., in SGwC In the case that address changes, reselect a new SGwU address be sent to change after SGW。

It should be noted that the 2nd SGwU addresses are selected to show as from SGwU lists： 2nd SGwU addresses are selected according to the information of each SGwU in SGwU lists, wherein, information Including at least one of：Priority, weight.

It should be noted that the information selection second herein according to each SGwU in SGwU lists Each SGwU information selection the in the mode of SGwU addresses, with the above-mentioned list according to SGwU The mode of one SGwU addresses is similar, and here is omitted.

It is above-mentioned that 2nd SGwU addresses are being sent to second in the present embodiment of the present invention After SGW, the above method can also include：2nd SGwU addresses are sent to by the 2nd SGW MME and eNodeB.By the way that the 2nd SGwU addresses are sent into MME and eNodeB, equally The correct upload of data can be realized, ensures the continuity of business and the integrality of data.

In one embodiment of the invention, the above method can also include：Adhere to or be grouped in user When data network PDN connections are established or in user's first time packet data protocol (PDP) activating, selection SGwC addresses；3rd SGwU addresses are selected according to the information of each SGwU in SGwU lists, Wherein, information includes at least one of：Priority, weight；3rd SGwU addresses are sent to First SGW.It should be noted that selected herein according to the information of each SGwU in SGwU lists The mode of the 3rd SGwU addresses is selected, the information with each SGwU in the above-mentioned list according to SGwU Select that the mode of the first SGwU addresses is similar, and here is omitted.

It should be noted that the above method can be by MME or service general grouping service wireless GPRS Supporting node SGSN is performed, but is not limited to this.

It should be noted that the above method can apply to gateway GW chains of command and GW user planes Separation, but it is not limited to this.

For a better understanding of the present invention, further solution is done to the present invention below in conjunction with preferred embodiment Release.

The scene that the method for the preferred embodiment of the present invention is applied to GW chains of command and user plane separates, by MME carries out the selection of SGwU addresses, in user's switching or tracing section updating, by MME roots Judge whether SGwU addresses need to change according to user current location.

Include for the immovable switchings of SGW or tracing section updating, key step：

Step 1：When user's switching or tracing section updating, MME judges that SGwC addresses do not change, Then increase judges whether SGwU changes according to current location such as TA (Tracking Area, tracking area)；

Step 2：MME constructs FQDN corresponding to current location, such as according to current location such as TA TA-FQDN, parse SGwU lists, then according to Serving SGW SGwU addresses whether In SGwU lists are parsed, if SGwU does not change, if it was not then SGwU Change；

Step 3：If SGwU changes, MME is according to each SGwU in parsing SGwU lists Priority, the information such as weight, select a SGwU address；

Step 4：If SGwU changes, MME thinks that SGW changes, and can send message and lead to Know SGW its SGwU changes, and new SGwU addresses are notified to SGW；

Step 5：SGW determines SGwU address modifications according to new SGw-U address informations, , can be new SGwU addresses to MME and eNodeB in subsequent message；

Step 6：When follow-up MME notices SGW deletes old resource, carry and delete old SGwU User plane identifies；

Step 7：SGW deletes old SGwU according to the old SGwU user planes mark of the deletion and used Family face resource；

Further, pair with step 2, when parsing SGwU lists according to TA-FQDN, use S-NAPTR query process, setting service parameter are identifier lookup SGwU, such as “x-3gpp-sgwu:x-s1-u”。

Include for the SGW switchings changed or tracing section updating, key step：

Step 1：When user's switching or tracing section updating, MME judges SGwC address changes；

Step 2：MME constructs FQDN corresponding to current location, such as according to current location such as TA TA-FQDN, parse SGwU lists；

Step 3：MME is according to each SGwU priority, weight etc. in parsing SGwU lists Information, select a SGwU address；

Step 4：MME, which is sent, creates conversation request message to new SGW, carries new SGwU Address；

Step 5：, can be new SGwU addresses to MME and eNodeB in SGW subsequent messages.

Established for user's attachment or PDN connections, key step includes：

Step 1：When user adheres to or PDN connections are established, MME selection SGwC addresses；

Step 4：MME, which is sent, creates conversation request message to SGW, carries SGwU addresses.

To SGSN, key step includes：

Step 1：When user's switching or tracing section updating, SGSN judges that SGwC addresses do not change, Then increase judges whether SGwU changes according to current location such as RA (Routing Area, Route Area)；

Step 2：SGSN constructs FQDN corresponding to current location, such as according to current location such as RA RA-FQDN, parse SGwU lists, then according to Serving SGW SGwU addresses whether In SGwU lists are parsed, if SGwU does not change, if it was not then SGwU Change；

Step 3：If SGwU changes, SGSN is according to each SGwU in parsing SGwU lists Priority, the information such as weight, select a SGwU address；

Step 4：If SGwU changes, SGSN thinks that SGW changes, and can send message and lead to Know SGW its SGwU changes, and new SGwU addresses are notified to SGW；

Step 5：SGW determines SGwU address modifications according to new SGw-U address informations, , can be new SGwU addresses to SGSN in subsequent message；

Step 6：When follow-up SGSN notices SGW deletes old resource, carry and delete old SGwU User plane identifies；

Further, pair with the step 2, when parsing SGwU lists according to RA-FQDN, make With S-NAPTR query process, setting service parameter is identifier lookup SGwU, such as “x-3gpp-sgwu:x-s4-u”。

Include for the SGW switchings changed or Routing Area Update, key step：

Step 1：When user's switching or Routing Area Update, SGSN judges SGwC address changes；

Step 2：SGSN constructs FQDN corresponding to current location, such as according to current location such as RA RA-FQDN, parse SGwU lists；

Step 3：SGSN is according to each SGwU priority, weight etc. in parsing SGwU lists Information, select a SGwU address；

Step 4：SGSN, which is sent, creates conversation request message to new SGW, carries new SGwU Address；

Step 5：, can be new SGwU addresses to SGSN and RNC in SGW subsequent messages.

For UE first time PDP activations, key step includes：

Step 1：During user's first time PDP activation, SGSN selection SGwC addresses；

Step 4：SGSN, which is sent, creates conversation request message to SGW, carries SGwU addresses.

By above-mentioned steps, for including but is not limited to GW chains of command and user plane separation application, adopt With the method for the preferred embodiment of the present invention, compared with correlation technique, MME/S4SGSN judges SGwC In the case of address is indeclinable, continue according to current location such as TA (Tracking Area, tracking area)/RA Judge whether SGwU changes, to determine whether SGW changes, need not change in SGwC but The correct forwarding of data is then realized under the scene of SGwU meeting gravity treatments, is advantageous to customer service experience, carries High user's impression.

Fig. 4 is the flow chart one of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 4, during the tracing section updating that SGwU changes, the above method includes：

Step 401, user's initiating updating of tracking area message is to network；

Step 402, mobile management entity judges SGwC addresses do not change, and also increase according to present bit Put TA (Tracking Area, tracking area) such as and judge whether SGwU changes；

Step 403, mobile management entity constructs TA-FQDN according to TA；

Step 404, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 405, dns server returns to SgwU lists；

Step 406, whether mobile management entity is parsing according to Serving SGW SGwU addresses In SGwU lists, if, SGwU does not change, if it was not then SGwU change； If SGwU change, MME according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 407, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 408, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 409, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 410, gateway user plane SGwU is replied to gateway chain of command SGwC and created User plane response message；

Step 411, gateway chain of command SGwC sends modification carrying to packet data network gateway and asked Seek message；

Step 412, packet data network gateway is replied modification carrying to gateway chain of command SGwC and rung Answer message；

Step 413, gateway chain of command SGwC sends to mobile management entity and creates conversational response Message；

Step 414, other flow processings of area's renewal are tracked；

Step 415, mobile management entity sends to gateway chain of command SGwC and deletes session request Message, message include deleting old SGwU user planes mark；

Step 416, gateway chain of command SGwC sends to old gateway user plane SGwU and deleted Except user plane request message；

Step 417, old gateway user plane SGwU is replied to gateway chain of command SGwC and deleted Except user plane response message；

Step 418, gateway chain of command SGwC sends to mobile management entity and deletes conversational response Message.

Fig. 5 is the flowchart 2 of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 5, in the handoff procedure that SGwU changes, the above method includes：

Step 501, wireless access network element sends handover request message；

Step 502, mobile management entity judges SGwC addresses do not change, and also increase according to present bit Put TA (Tracking Area, tracking area) such as and judge whether SGwU changes；

Step 503, mobile management entity constructs TA-FQDN according to TA；

Step 504, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 505, dns server returns to SGwU lists；

Step 506, whether mobile management entity is parsing according to Serving SGW SGwU addresses In SGwU lists, if, SGwU does not change, if it was not then SGwU change； If SGwU change, MME according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 507, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 508, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 509, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 510, gateway user plane SGwU is replied to gateway chain of command SGwC and created User plane response message；

Step 511, gateway chain of command SGwC sends modification carrying to packet data network gateway and asked Seek message；

Step 512, packet data network gateway is replied modification carrying to gateway chain of command SGwC and rung Answer message；

Step 513, gateway chain of command SGwC sends to mobile management entity and creates conversational response Message；

Step 514, other flow processings switched over；

Step 515, mobile management entity sends to gateway chain of command SGwC and deletes session request Message, message include deleting old SGwU user planes mark；

Step 516, gateway chain of command SGwC sends to old gateway user plane SGwU and deleted Except user plane request message；

Step 517, old gateway user plane SGwU is replied to gateway chain of command SGwC and deleted Except user plane response message；

Step 518, gateway chain of command SGwC sends to mobile management entity and deletes conversational response Message；

Step 519, other flow processings switched over.

Fig. 6 is the flow chart 3 of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in fig. 6, in the path handoff procedure that SGwU changes, the above method includes：

Step 601, wireless access network element transmitting path handover request message；

Step 602, mobile management entity judges SGwC addresses do not change, and also increase according to present bit Put TA (Tracking Area, tracking area) such as and judge whether SGwU changes；

Step 603, mobile management entity constructs TA-FQDN according to TA；

Step 604, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 605, dns server returns to SGwU lists；

Step 606, whether mobile management entity is parsing according to Serving SGW SGwU addresses In SGwU lists, if, SGwU does not change, if it was not then SGwU change； If SGwU change, MME according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 607, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 608, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 609, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 610, gateway user plane SGwU is replied to gateway chain of command SGwC and created User plane response message；

Step 611, gateway chain of command SGwC sends modification carrying to packet data network gateway and asked Seek message；

Step 612, packet data network gateway is replied modification carrying to gateway chain of command SGwC and rung Answer message；

Step 613, gateway chain of command SGwC sends to mobile management entity and creates conversational response Message；

Step 614, other flow processings of path switching are carried out；

Step 615, mobile management entity sends to gateway chain of command SGwC and deletes session request Message, message include deleting old SGwU user planes mark；

Step 616, gateway chain of command SGwC sends to old gateway user plane SGwU and deleted Except user plane request message；

Step 617, old gateway user plane SGwU is replied to gateway chain of command SGwC and deleted Except user plane response message；

Step 618, gateway chain of command SGwC sends to mobile management entity and deletes conversational response Message.

Fig. 7 is the flow chart four of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in fig. 7, during the tracing section updating that SGwC changes, the above method includes：

Step 701, user's initiating updating of tracking area message is to network；

Step 702, mobile management entity judges SGwC address changes；

Step 703, mobile management entity constructs TA-FQDN according to TA；

Step 704, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 705, dns server returns to SGwU lists；

Step 706, mobile management entity according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 707, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 708, other flow processings of area's renewal are tracked.

Fig. 8 is the flow chart five of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 8, in the handoff procedure that SGwU changes, the above method includes：

Step 801, wireless access network element sends handover request message；

Step 802, mobile management entity judges SGwC address changes；

Step 803, mobile management entity constructs TA-FQDN according to TA；

Step 804, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 805, dns server returns to SGwU lists；

Step 806, mobile management entity according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 807, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 808, other flow processings switched over.

Fig. 9 is the flow chart six of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 9, in the path handoff procedure that SGwU changes, the above method includes：

Step 901, wireless access network element transmitting path handover request message；

Step 902, mobile management entity judges SGwC address changes；

Step 903, mobile management entity constructs TA-FQDN according to TA；

Step 904, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 905, dns server returns to SGwU lists；

Step 906, mobile management entity according to parsing SGwU lists in each SGwU priority, The information such as weight, select a SGwU address；

Step 907, mobile management entity sends to gateway chain of command SGwC and creates session request Message, message include new SGwU addresses；

Step 908, other flow processings of path switching are carried out.

Figure 10 is the flow chart seven of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in Figure 10, during PDN connections foundation, the above method includes：

Step 1001, user initiates PDN connections and establishes request message to network；

Step 1002, mobile management entity selection SGwC addresses；

Step 1003, mobile management entity constructs TA-FQDN according to TA；

Step 1004, mobile management entity uses S-NAPTR query process, using TA-FQDN, Setting service parameter is " x-3gpp-sgwu:X-s1-u ", SGwU lists are inquired about to dns server；

Step 1005, dns server returns to SGwU lists；

Step 1006, mobile management entity according to parsing SGwU lists in each SGwU it is preferential The information such as level, weight, select a SGwU address；

Step 1007, mobile management entity sends establishment session to gateway chain of command SGwC and asked Message is sought, message includes SGwU addresses；

Step 1008, other flow processings that PDN connections are established are carried out.

Figure 11 is the flow chart eight of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 11, during the Routing Area Update that SGwU changes, the above method includes：

Step 1101, user initiates Routing Area Update message to network；

Step 1102, SGSN judges that SGwC addresses do not change, and also increases according to current location such as RA judges whether SGwU changes；

Step 1103, SGSN constructs RA-FQDN according to RA；

Step 1104, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1105, dns server returns to SGwU lists；

Step 1106, whether SGSN is parsing SGwU according to Serving SGW SGwU addresses In list, if, SGwU does not change, if it was not then SGwU change；If SGwU Change, then SGSN is according to the letter such as each SGwU priority, weight in parsing SGwU lists Breath, select a SGwU address；

Step 1107, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1108, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 1109, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 1110, gateway user plane SGwU is replied to gateway chain of command SGwC and created Build user plane response message；

Step 1111, gateway chain of command SGwC sends modification carrying to packet data network gateway Request message；

Step 1112, packet data network gateway replys modification carrying to gateway chain of command SGwC Response message；

Step 1113, gateway chain of command SGwC sends to SGSN and creates conversational response message；

Step 1114, other flow processings of Routing Area Update are carried out；

Step 1115, SGSN sends to gateway chain of command SGwC and deletes conversation request message, Message includes deleting old SGwU user planes mark；

Step 1116, gateway chain of command SGwC is sent to old gateway user plane SGwU Delete user plane request message；

Step 1117, old gateway user plane SGwU replys to gateway chain of command SGwC Delete user plane response message；

Step 1118, gateway chain of command SGwC sends to SGSN and deletes conversational response message.

Figure 12 is the flow chart nine of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 12, in the repositioning process that SGwU changes, the above method includes：

Step 1201, wireless access network element sends RELOCATION REQUEST message；

Step 1202, SGSN judges that SGwC addresses do not change, and also increases according to current location such as RA judges whether SGwU changes；

Step 1203, SGSN constructs RA-FQDN according to RA；

Step 1204, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1205, dns server returns to SGwU lists；

Step 1206, whether SGSN is parsing SGwU according to Serving SGW SGwU addresses In list, if, SGwU does not change, if it was not then SGwU change；If SGwU Change, then SGSN is according to the letter such as each SGwU priority, weight in parsing SGwU lists Breath, select a SGwU address；

Step 1207, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1208, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 1209, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 1210, gateway user plane SGwU is replied to gateway chain of command SGwC and created Build user plane response message；

Step 1211, gateway chain of command SGwC sends modification carrying to packet data network gateway Request message；

Step 1212, packet data network gateway replys modification carrying to gateway chain of command SGwC Response message；

Step 1213, gateway chain of command SGwC sends to SGSN and creates conversational response message；

Step 1214, other flow processings relocated；

Step 1215, SGSN sends to gateway chain of command SGwC and deletes conversation request message, Message includes deleting old SGwU user planes mark；

Step 1216, gateway chain of command SGwC is sent to old gateway user plane SGwU Delete user plane request message；

Step 1217, old gateway user plane SGwU replys to gateway chain of command SGwC Delete user plane response message；

Step 1218, gateway chain of command SGwC sends to SGSN and deletes conversational response message；

Step 1219, other flow processings relocated.

Figure 13 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention, As shown in figure 13, in the enhancing repositioning process that SGwU changes, the above method includes：

Step 1301, wireless access network element sends enhancing RELOCATION REQUEST message；

Step 1302, SGSN judges that SGwC addresses do not change, and also increases according to current location such as RA judges whether SGwU changes；

Step 1303, SGSN constructs RA-FQDN according to RA；

Step 1304, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1305, dns server returns to SGwU lists；

Step 1306, whether SGSN is parsing SGwU according to Serving SGW SGwU addresses In list, if, SGwU does not change, if it was not then SGwU change；If SGwU Change, then SGSN is according to the letter such as each SGwU priority, weight in parsing SGwU lists Breath, select a SGwU address；

Step 1307, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1308, SGW judges it is that SGwC does not change but new according to new SGwU addresses The tracing section updating flow that SGwU changes；

Step 1309, SGwC is according to new SgwU addresses, to new gateway user plane SGwU Send and create user plane request message；

Step 1310, gateway user plane SGwU is replied to gateway chain of command SGwC and created Build user plane response message；

Step 1311, gateway chain of command SGwC sends modification carrying to packet data network gateway Request message；

Step 1312, packet data network gateway replys modification carrying to gateway chain of command SGwC Response message；

Step 1313, gateway chain of command SGwC sends to SGSN and creates conversational response message；

Step 1314, carry out strengthening other flow processings of reorientation；

Step 1315, SGSN sends to gateway chain of command SGwC and deletes conversation request message, Message includes deleting old SGwU user planes mark；

Step 1316, gateway chain of command SGwC is sent to old gateway user plane SGwU Delete user plane request message；

Step 1317, old gateway user plane SGwU replys to gateway chain of command SGwC Delete user plane response message；

Step 1318, gateway chain of command SGwC sends to SGSN and deletes conversational response message.

Figure 14 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention One, as shown in figure 14, during the Routing Area Update that SGwC changes, the above method includes：

Step 1401, user initiates Routing Area Update message to network；

Step 1402, SGSN judges SGwC address changes；

Step 1403, SGSN constructs RA-FQDN according to RA；

Step 1404, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1405, dns server returns to SGwU lists；

Step 1406, SGSN is according to each SGwU priority, power in parsing SGwU lists The information such as again, select a SGwU address；

Step 1407, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1408, other flow processings of Routing Area Update are carried out.

Figure 15 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Two, as shown in figure 15, in the repositioning process that SGwU changes, the above method includes：

Step 1501, wireless access network element sends RELOCATION REQUEST message；

Step 1502, SGSN judges SGwC address changes；

Step 1503, SGSN constructs RA-FQDN according to RA；

Step 1504, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1505, dns server returns to SGwU lists；

Step 1506, SGSN is according to each SGwU priority, power in parsing SGwU lists The information such as again, select a SGwU address；

Step 1507, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1508, other flow processings relocated.

Figure 16 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Three, as shown in figure 16, in the enhancing repositioning process that SGwU changes, the above method includes：

Step 1601, wireless access network element sends enhancing RELOCATION REQUEST message；

Step 1602, SGSN judges SGwC address changes；

Step 1603, SGSN constructs RA-FQDN according to RA；

Step 1604, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1605, dns server returns to SGwU lists；

Step 1606, SGSN is according to each SGwU priority, power in parsing SGwU lists The information such as again, select a SGwU address；

Step 1607, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes new SGwU addresses；

Step 1608, carry out strengthening other flow processings of reorientation.

Figure 17 is the flow chart ten of the transmission method of SGwU addresses according to the preferred embodiment of the invention Four, as shown in figure 17, during first PDP of UE is activated, the above method includes：

Step 1701, user initiates PDP activation request message to network, and the PDP is the of UE One PDP；

Step 1702, SGSN selects SGwC addresses；

Step 1703, SGSN constructs RA-FQDN according to RA；

Step 1704, SGSN uses S-NAPTR query process, using RA-FQDN, sets Service parameter is " x-3gpp-sgwu:X-s4-u ", SGwU lists are inquired about to dns server；

Step 1705, dns server returns to SGwU lists；

Step 1706, SGSN is according to each SGwU priority, power in parsing SGwU lists The information such as again, select a SGwU address；

Step 1707, SGSN sends to gateway chain of command SGwC and creates conversation request message, Message includes SGwU addresses；

Step 1708, other flow processings of PDP activation are carried out.

By the above method, after overcoming GW chains of command in the prior art and user plane separation, SGwC need not change, but SGwU can not support the correct reliable of data flow under gravity treatment scene Transmission, the problem of continuity and integrality of business can not be ensured so that data flow correctly reliably passes It is defeated, be advantageous to customer service experience, improve user's impression.

Through the above description of the embodiments, those skilled in the art can be understood that root The mode of required general hardware platform can be added by software according to the method for above-described embodiment to realize, when So can also be by hardware, but the former is more preferably embodiment in many cases.Based on such reason Solution, the part that technical scheme substantially contributes to prior art in other words can be with soft The form of part product embodies, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD) in, including some instructions are make it that a station terminal equipment (can To be mobile phone, computer, server, or network equipment etc.) perform each embodiment institute of the present invention The method stated.

Embodiment 2

A kind of transmitting device of SGwU addresses is additionally provided in the present embodiment, and the device is used to realize Above-described embodiment and preferred embodiment, repeating no more for explanation was carried out.Used as following , term " module " can realize the combination of the software and/or hardware of predetermined function.It is although following real Apply the device described by example and preferably realized with software, but hardware, or the group of software and hardware The realization of conjunction is also what may and be contemplated.

Figure 18 is the structured flowchart of the transmitting device of SGwU addresses according to embodiments of the present invention, such as Shown in Figure 18, the device includes：

First judge module 1802, in user's switching or tracing section updating, judging gateway Whether chain of command SGwC addresses change；

Second judge module 1804, and above-mentioned first judge module 1802, if for judging SGwC Address does not change, then judges whether gateway user plane SGwU changes；

First choice module 1806, it is connected with above-mentioned second judge module 1804, if for judging SGwU is changed, then the first SGwU addresses are selected from SGwU lists；

First sending module 1808, it is connected with above-mentioned first choice module 1806, for by first SGwU addresses are sent to first service gateway SGW.

By said apparatus, due to judging SGwC addresses not in above-mentioned first judge module 1802 Change, and when the second judge module 1804 judges that SGwU changes, first choice mould Block 1806 selects the first SGwU addresses from SGwU lists, then the first sending module 1808 First SGwU addresses are sent to first service gateway SGW, i.e., selected when SGwU changes When selecting a new SGwU address and be sent to the first SGW, and then make it that SGwU is retransmitted, Final SGwU addresses can be obtained, it is ensured that data flow is correctly uploaded, therefore, it is possible to Solve under the scene of gravity treatment data flow can not be supported correctly reliably to pass in SGwU in correlation technique The problem of defeated, and then ensure that the continuity and integrality of business.

In one embodiment of the invention, above-mentioned first judge module 1802 is additionally operable to take current clothes The TA lists of the SGwC associations of business, and the TA that terminal (UE) is currently located compare, if should The TA that UE is currently located is included in TA lists, then SGwC addresses do not change, otherwise SGwC Address is changed；Or the TA for being currently located according to UE, go on dns server SGwC lists are parsed, if the SGwC lists of parsing include the SGwC of UE current services, SGwC addresses do not change, and otherwise, SGwC addresses are changed.

It should be noted that above-mentioned second judge module 1804 is additionally operable to judge that the first SGW's is current Whether SGwU addresses are in SGwU lists；If currently SGwU addresses are in SGwU lists, Then judge that SGwU does not change；If currently SGwU addresses are not in SGwU lists, Judge that SGwU changes.

Above-mentioned second judge module 1804 is additionally operable in the current SGwU addresses for judging the first SGW It is corresponding with current location complete according to the current location of terminal construction before whether in SGwU lists Claim domain name FQDN；SGwU lists are parsed according to FQDN.

It should be noted that above-mentioned second judge module 1804 can be also used for looking into using S-NAPTR Inquiry process, the current SGwU addresses of the first SGW are inquired about whether in the SGwU lists； Wherein, service parameter in query process is arranged to be used for searching SGwU corresponding to current location Location." x-3gpp-sgwu is could be arranged to than such as above-mentioned service parameter：x-s4-u”.

Alternatively, above-mentioned first choice module 1806 is additionally operable to according to each SGwU in SGwU lists Information select the first SGwU addresses, wherein, information includes at least one of：Priority, power Weight.

I.e. when SGwU changes, can according to each SGwU priority in SGwU lists, The information such as weight select above-mentioned first SGwU addresses.By taking priority as an example, above-mentioned selection first SGwU addresses can be the priority according to SGwU, select the SGwU of highest priority corresponding SGwU addresses as above-mentioned first SGwU addresses, the minimum SGwU of priority can also be selected Corresponding SGwU addresses are as above-mentioned first SGwU addresses, or the SGwU in highest priority , can be by SGwU pairs of priority rank second after corresponding SGwU addresses are selected The SGwU addresses answered are not limited to this as above-mentioned first SGwU addresses.For according to power Seemingly here is omitted to select the scheme of the first SGwU addresses and priority class for weight information.

In one embodiment of the invention, said apparatus can also include：First indicating module, with Above-mentioned first sending module 1808 connects, for indicating that the first SGW establishes with the first SGwU SGwU user planes resource corresponding to location；Second indicating module, with above-mentioned first sending module 1808 Connection, for indicating that it is corresponding with the first SGW current SGwU addresses that the first SGW deletes SGwU user plane resources.It has selected by above-mentioned first indicating module and the second indicating module Behind new SGwU addresses, new SGwU user plane resources are established, delete old SGwU user Face resource.

In one embodiment of the invention, said apparatus can also include：Second sending module, with Above-mentioned first sending module 1808 connects, for the first SGW true according to the first SGwU addresses Determine after SGwU changes, the first SGwU addresses are sent into mobile management unit MME With node eNodeB.First SGwU addresses are sent to MME and eNodeB, it is possible to achieve number According to correct upload, ensure the continuity of business and the integrality of data.

In one embodiment of the invention, said apparatus can also include：Second selecting module, use If in judging that SGwC addresses change, the 2nd SGwU is selected from SGwU lists Location；3rd sending module, for the 2nd SGwU addresses to be sent into the 2nd SGW, wherein, the One SGW is the SGW before changing, and the 2nd SGW is the SGW after changing.In SGwC addresses In the case of changing, after above-mentioned second selecting module reselects a new SGwU address, New SGwU addresses are sent to the SGW after changing by the 3rd sending module.

It should be noted that above-mentioned second selecting module can be also used for according to each in SGwU lists SGwU information selects the 2nd SGwU addresses, wherein, information includes at least one of：Preferentially Level, weight.

In one embodiment of the invention, said apparatus can also include：3rd selecting module, use Assisted in when user's attachment or the connection of grouped data network PDN are established or in user's first time grouped data When discussing PDP activation, SGwC addresses are selected；4th selecting module, for according to SGwU lists In each SGwU information select the 3rd SGwU addresses, wherein, information include it is following at least it One：Priority, weight；4th sending module, for the 3rd SGwU addresses to be sent into first SGW.It should be noted that the information selection the herein according to each SGwU in SGwU lists Each SGwU information selection in the mode of three SGwU addresses, with the above-mentioned list according to SGwU The mode of first SGwU addresses is similar, and here is omitted.

It should be noted that said apparatus is MME or SGSN.

It should be noted that said apparatus can apply to gateway GW chains of command and GW user planes Separation, but it is not limited to this.

It should be noted that above-mentioned modules can be realized by software or hardware, for The latter, it can be accomplished by the following way, but not limited to this：Above-mentioned module is respectively positioned on same processor In；Or the form of above-mentioned modules in any combination is located in different processors respectively.

Embodiment 3

The embodiment of the present invention additionally provides a kind of mobile management unit MME, including in embodiment 2 The transmitting device of SGwU addresses.

The embodiment of the present invention additionally provides a kind of service general grouping service wireless GPRS Support Node The transmitting device of SGwU addresses in SGSN, including embodiment 2.

It should be noted that the explanation of the transmitting device for above-mentioned SGwU addresses, reference implementation example 2 explanation, here is omitted.

Embodiment 4

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, on State the program generation that storage medium can be configured to the step of storage is used to perform the method in embodiment 1 Code.

Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, only Read memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with Jie of store program codes Matter.

Alternatively, in the present embodiment, processor is held according to the program code stored in storage medium The step of method in row embodiment 1.

Alternatively, the specific example in the present embodiment may be referred to above-described embodiment and optional embodiment Described in example, the present embodiment will not be repeated here.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step It can be realized with general computing device, they can be concentrated on single computing device, or It is distributed on the network that multiple computing devices are formed, alternatively, they be able to can be held with computing device Capable program code realizes, it is thus possible to be stored in storage device by computing device Lai Perform, and in some cases, can be shown or described to be performed different from order herein Step, they are either fabricated to each integrated circuit modules respectively or by multiple moulds in them Block or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any spy Fixed hardware and software combines.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the present invention with principle Protection domain within.

Claims

A kind of 1. transmission method of SGwU addresses, it is characterised in that including：

In user's switching or tracing section updating, with judging gateway chain of command SGwC Whether location changes；

If judging, the SGwC addresses do not change, judge gateway user Whether face SGwU changes；

If judging, the SGwU is changed, and first is selected from SGwU lists SGwU addresses；

The first SGwU addresses are sent to first service gateway SGW.
2. according to the method for claim 1, it is characterised in that the judgement SGwU whether change including：

Judge the current SGwU addresses of the first SGW whether in the SGwU lists In；

If the current SGwU addresses are judged described in the SGwU lists SGwU does not change；If the current SGwU addresses are not in the SGwU lists In, then judge that the SGwU changes.
3. according to the method for claim 2, it is characterised in that described in judgement Before whether the first SGW current SGwU addresses are in the SGwU lists, institute State and judge whether SGwU changes and also include：

Full name domain name corresponding with the current location is constructed according to the current location of terminal FQDN；

The SGwU lists are parsed according to the FQDN.
4. according to the method for claim 3, it is characterised in that the present bit Put including：Tracking area TA and/or Route Area RA.
5. according to the method for claim 3, it is characterised in that described in judgement When whether the first SGW current SGwU addresses are in the SGwU lists, also wrap Include：

Use direct NAPTR S-NAPTR query process, inquiry described first Whether SGW current SGwU addresses are in the SGwU lists；Wherein, it is described to look into Service parameter during inquiry is arranged to be used for searching corresponding to the current location SGwU addresses.
6. according to the method for claim 1, it is characterised in that described from SGwU The first SGwU addresses are selected to include in list：

First SGwU is selected according to the information of each SGwU in the SGwU lists Address, wherein, described information includes at least one of：Priority, weight.
7. according to the method for claim 1, it is characterised in that by described the One SGwU addresses are sent to after the first SGW, in addition to：

Indicate that the first SGW establishes SGwU corresponding with the first SGwU addresses User plane resource；

Indicate that the first SGW deletes the current SGwU addresses with the first SGW Corresponding SGwU user planes resource.
8. according to the method for claim 1, it is characterised in that by described the One SGwU addresses are sent to after the first SGW, in addition to：

First SGW is determining that the SGwU is sent out according to the first SGwU addresses After changing, the first SGwU addresses are sent to mobile management unit MME With node eNodeB.
9. according to the method for claim 1, it is characterised in that judging SGwC After whether address changes, in addition to：

If judging, the SGwC addresses change, from the SGwU lists Select the 2nd SGwU addresses；

The 2nd SGwU addresses are sent to the 2nd SGW, wherein, the first SGW For the SGW before change, the 2nd SGW is the SGW after changing.
10. according to the method for claim 9, it is characterised in that described from described The 2nd SGwU addresses are selected to include in SGwU lists：

2nd SGwU is selected according to the information of each SGwU in the SGwU lists Address, wherein, described information includes at least one of：Priority, weight.
11. according to the method for claim 9, it is characterised in that by described the Two SGwU addresses are sent to after the 2nd SGW, in addition to：

The 2nd SGwU addresses are sent to MME and eNodeB by the 2nd SGW.
12. according to the method for claim 1, it is characterised in that also include：

Divide for the first time when user's attachment or the connection of grouped data network PDN are established or in user During group data protocol PDP activation, the SGwC addresses are selected；

According to the information of each SGwU in the SGwU lists with selecting the 3rd SGwU Location, wherein, described information includes at least one of：Priority, weight；

The 3rd SGwU addresses are sent to the first SGW.
13. the method according to any one of claim 1 to 12, its feature exists In methods described is by MME or service general grouping service wireless GPRS Support Node SGSN is performed.
14. the method according to any one of claim 1 to 12, its feature exists In gateway GW chains of command and the separation of GW user planes.
A kind of 15. transmitting device of SGwU addresses, it is characterised in that including：

First judge module, in user's switching or tracing section updating, judging to service Whether gateway control face SGwC addresses change；

Second judge module, if for judging that the SGwC addresses do not change, Then judge whether gateway user plane SGwU changes；

First choice module, if for judging that the SGwU changes, from The first SGwU addresses are selected in SGwU lists；

First sending module, for the first SGwU addresses to be sent into first service Gateway SGW.
16. device according to claim 15, it is characterised in that described second Whether judge module is additionally operable to judge the current SGwU addresses of the first SGW in institute State in SGwU lists；If the current SGwU addresses in the SGwU lists, Then judge that the SGwU does not change；If the current SGwU addresses are not in institute State in SGwU lists, then judge that the SGwU changes.
17. device according to claim 16, it is characterised in that described second Judge module is additionally operable to corresponding with the current location according to the current location of terminal construction Full name domain name FQDN；The SGwU lists are parsed according to the FQDN.
18. device according to claim 17, it is characterised in that described current Position includes：Tracking area TA and/or Route Area RA.
19. device according to claim 17, it is characterised in that described second Judge module is also used for direct NAPTR S-NAPTR query process, inquiry Whether the current SGwU addresses of the first SGW are in the SGwU lists；Its In, the service parameter in the query process is arranged to be used for searching the current location Corresponding SGwU addresses.
20. device according to claim 15, it is characterised in that the selection Module is additionally operable to the information selection described the according to each SGwU in the SGwU lists One SGwU addresses, wherein, described information includes at least one of：Priority, power Weight.
21. device according to claim 15, it is characterised in that described device Also include：

First indicating module, for indicating that the first SGW is established and described first SGwU user planes resource corresponding to SGwU addresses；

Second indicating module, for indicating that the first SGW is deleted and the first SGW Current SGwU addresses corresponding to SGwU user plane resources.
22. device according to claim 15, it is characterised in that described device Also include：

Second sending module, in the first SGW according to the first SGwU After location determines that the SGwU changes, the first SGwU addresses are sent to Mobile management unit MME and node eNodeB.
23. device according to claim 15, it is characterised in that described device Also include：

Second selecting module, if for judging that the SGwC addresses change, The 2nd SGwU addresses are selected from the SGwU lists；

3rd sending module, for the 2nd SGwU addresses to be sent into the 2nd SGW, Wherein, the first SGW is the SGW before changing, after the 2nd SGW is changes SGW.
24. device according to claim 23, it is characterised in that described second Selecting module is additionally operable to select institute according to the information of each SGwU in the SGwU lists The 2nd SGwU addresses are stated, wherein, described information includes at least one of：Priority, Weight.
25. device according to claim 15, it is characterised in that described device Also include：

3rd selecting module, for being established in user's attachment or the connection of grouped data network PDN When or in user's first time packet data protocol (PDP) activating, with selecting the SGwC Location；

4th selecting module, for the letter according to each SGwU in the SGwU lists The 3rd SGwU addresses of breath selection, wherein, described information includes at least one of：It is excellent First level, weight；

4th sending module, for the 3rd SGwU addresses to be sent into described first SGW。
26. the device according to any one of claim 15 to 25, its feature exists In described device is MME or SGSN.
27. the device according to any one of claim 15 to 25, its feature exists In gateway GW chains of command and the separation of GW user planes.
A kind of 28. mobile management unit MME, it is characterised in that including：Right will Seek the device any one of 15 to claim 25.
29. a kind of service general grouping service wireless GPRS Support Node SGSN, it is special Sign is, including：Device any one of claim 15 to claim 25.