CN102843779B - Method and device for establishing and processing connections - Google Patents
Method and device for establishing and processing connections Download PDFInfo
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- CN102843779B CN102843779B CN201110170059.1A CN201110170059A CN102843779B CN 102843779 B CN102843779 B CN 102843779B CN 201110170059 A CN201110170059 A CN 201110170059A CN 102843779 B CN102843779 B CN 102843779B
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Abstract
The invention discloses a method and a device for establishing and processing connections. The method for establishing and processing connections comprises the following steps: a local connection required to be established is determined by a local gateway according to a received bearing establishment request; and a tunnel end mark is allocated to the local connection and an IP (Internet Protocol) address to send to a household base station. The method and the device for establishing and processing connections solve the problem in relevant techniques that the local connection cannot be established according to the actual demand, so that the local connection can be established by the local gateway according to various conditions.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of establishment of connection processing method and processing device.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, provide the user speed faster, time delay
Lower, more personalized Mobile Communication Service, meanwhile, reduce the operation cost of operator, third generation partner program
(3rd Generation Partnership Project, referred to as 3GPP) standard working group is just being devoted to evolved packet system
The research of (Evolved Packet System, abbreviation EPS).Fig. 1 is the structure of the evolution grouping domain system according to correlation technique
Schematic diagram, as shown in figure 1, whole EPS is divided into wireless access network and core net two parts.Core net includes：Home subscriber
Server (Home Subscriber Server, referred to as HSS), Mobility Management Entity (Mobility Management
Entity, referred to as MME), service universal packet wireless business business (General Packet Radio Service, referred to as
GPRS) supporting node (Serving GPRS Support Node, referred to as SGSN), policy charging rule function (Policy
And Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW),
Packet data gateway (PDN Gateway, referred to as P-GW) and packet data network (Packet Data Network, referred to as
PDN).The following detailed description of functions：
HSS, the institute for containing attaching position register (Home Location Register, referred to as HLR) are functional,
It is the permanent storage place of user contracting data, positioned at the home network of user's signing.
MME, is storage place of the user contracting data in current network, is responsible for the Non-Access Stratum signaling pipe of terminal to network
Reason, the safety verification function of terminal, the mobile management of terminal, the tracking under user's idle pulley and paging management function and hold
Carry management.
Serving GPRS Support Node, is that (GSM EDGE radio access network, GSM EDGE wirelessly connect GERAN
Network, wherein, GSM is the abbreviation of Global System for Mobile communications, i.e. global mobile communication system
System, EDGE is the abbreviation of Enhanced Data Rate for GSM Evolution, i.e. enhanced data rates for gsm evolution skill
Art) and global system for mobile communications wireless access network (Universal Mobile Telecommunication System
Radio Access Network, referred to as UTRAN) user access core network network business support point, functionally with MME classes
Seemingly, it is responsible for the functions such as location updating, paging management and the bearer management of user.
S-GW, is gateway of the core net to wireless system, is responsible for terminal to user plane bearer, the terminal idle mould of core net
Data buffer storage, the function of network side initiating business request, Lawful Interception and packet routing and forwarding capability under formula；S-GW
Situation of the responsible counting user terminal using wireless network, and the ticket that terminal uses wireless network is produced, send charging gateway to.
PDN Gateway, are the gateways of evolution system and its exterior packet data network, it be connected to the Internet and
On packet data network, it is responsible for the distribution of Internet protocol (Internet Protocol, referred to as IP) address, the charging of terminal
The functions such as function, packet packet filtering, policy control.
GGSN (Gateway GPRS Support Node, referred to as GGSN), supports GPRS network
Edge routing function, i.e. GGSN is responsible for for the data of GPRS network carrying out routing forwarding, and by fire wall and filtering function come
The integrity of protection GPRS network data.GGSN also has billing function.
P-GW contains the repertoire of GGSN, i.e. it is believed that GGSN is embedded in P-GW as a subfunction of P-GW
It is interior.Therefore, SGSN directly can be connected with P-GW using Gn/Gp interfaces.
PDN, is the IP operation network of operator, and the network provides the user IP services by the core net of operator.
PCRF, is responsible offer charging control, online diameter credit control, thresholding control, service quality in evolution system
The server of (Quality of Service, referred to as QoS) strategy aspect rule.
Wireless access network, is by evolution base station (E-UTRANNodeB, abbreviation eNB) and the third generation (3Generation, letter
Referred to as 3G) radio network controller (Radio Network Control, abbreviation RNC) composition, it is mainly responsible for wireless signal
Transmitting-receiving, by air interface and terminal contact, the Radio Resource of management air interface, scheduling of resource, Access Control.
Base station from home (Home NodeB, referred to as HNB) or evolution base station from home (Home eNodeB, referred to as
HeNB be) that a class is small-sized, lower powered base station, as the dedicated resources of certain user, be deployed in family, group, company or
The private sites such as school are used, and are predominantly provided the user with higher service rate and are reduced using required for high rate services
Expense, while make up the deficiency that existing distributed cellular radio communication system is covered.The advantage of base station from home be it is economical, convenient,
Low-power output, plug and play, broadband access, using single-mode terminal etc..
Base station from home can be applied mobile logical in 3G or Long Term Evolution (Long Term Evolution, referred to as LTE)
In communication network.For the ease of being managed to base station from home, a new network element is introduced in a network, i.e. home base-station gateway.
The function that home base-station gateway is mainly performed includes：The safety of checking base station from home, the operation to base station from home are safeguarded
Management, configures and controls base station from home, be responsible for the data message of exchcange core net and base station from home according to Carrier Requirements.
In order to provide different privacies, base station from home has different access modules, including：Closed mode, mixed model
And open mode.For first two pattern, user from base station when need to verify the closed user group (closed of user
Subscribed group, referred to as CSG) CAMEL-Subscription-Information.
Base station from home can also support local IP access functions in addition to supporting the access by mobile core network,
Under conditions of base station from home possesses local IP access capabilities and user's signing allows local IP access, it is possible to achieve user couple
The local access of other IP device of home network or internet.By local access function, it is possible to achieve Internet numbers
According to the shunting of business, the load of core net is reduced, and for the access of home network device can not be entered by core net
Row forwarding, data transfer convenient and efficient.Local IP access functions can also be used on macrocellular, main usess and base station from home
Similar, local IP access functions are more to apply to access the Internet (Internet) this scene in local IP, it is therefore an objective to dropped
The load of low core net.Fig. 2 shows the framework for realizing above-mentioned local access function.Wherein, local access network is closed as local
It is linked into the network element of external network (such as Internet), there is provided address distribution, charging, packet packet filtering, policy control, data
Diverter function, NAS/RANAP (Radios Access Network Application Part, wireless access network application obscure portions)
Message parsing, network address translation (NetworkAddress Translation, referred to as NAT), local IP access strategy road
By with perform etc. function.Additionally, local access network closes the access that can also realize internal network, local gateway administrative area is realized
Interior different terminal is direct, and the exchanging visit of internal network.Local gateway is deployed on the path of base station from home and core net.Eventually
When end is moved below the local gateway, the seriality of business can be kept.Fig. 2 and 3 is respectively no home base-station gateway
The configuration diagram of presence, main difference is that whether core network service flows through local gateway.If core network data flows through this
Ground gateway, local gateway do not carry out any process, are intended only as route, send it to core net.Fig. 4 is with domestic base
The configuration diagram that gateway of standing is present.The framework equally supports the path that core network data flows through the framework of local gateway, flows through
Similar Fig. 2, will not be described here.Additionally, for UMTS (Universal Mobile
Telecommunications System, referred to as UMTS) for the terminal that accesses, core net access gateway can also be
GGSN, the other parts of its network architecture are similar with Fig. 2,3,4, will not be described here.
In the related, local gateway can not select how to set up locality connection according to different situations, so that
Locality connection can not be set up as needed.
The content of the invention
Present invention is primarily targeted at provide a kind of establishment of connection processing scheme, so that solve can not root in correlation technique
According to needing to set up locally-attached problem.
According to an aspect of the invention, there is provided a kind of establishment of connection processing method, including：Local gateway is according to connecing
Request determination is set up in the carrying for receiving to be needed to set up locality connection；Local gateway assigns them to locally-attached tunnel end mark
Base station from home is sent to internet protocol address.
Preferably, local gateway is received carrying is set up request determination and needs to set up locality connection to be included：Local gateway
Receive carrying and set up request；Whether local gateway judges to carry sets up in request comprising association identification, needs if it is, determining
Locality connection to be set up.
Preferably, after it is determined that needing to set up locality connection, said method also includes：Local gateway is identified using one
Association identification is replaced in position, and wherein, flag is used for indicating whether to set up locality connection.
Preferably, local gateway assigns them to locally-attached tunnel end mark and IP address is sent to base station from home bag
Include one below：Local gateway distributes to locally-attached tunnel end mark using which and IP address is replaced to carry and set up in request
Original tunnel end mark and IP address, and request is set up in carrying be sent to base station from home；Local gateway is distributed to using which
Locally-attached tunnel end mark and IP address are replaced to carry and set up original tunnel end mark and IP address in request, and deletion is held
The association identification set up in request is carried, and request is set up in carrying and be sent to base station from home；Local gateway is assigned them to locally
The tunnel end mark of connection and IP address are added in carrying foundation request as newly-increased parameter, and will carry foundation request transmission
To base station from home.
Preferably, locally-attached tunnel end mark is assigned them in local gateway and IP address is sent to base station from home
Afterwards, said method also includes：Local gateway receives the address of the base station from home of base station from home transmission and tunnel end mark；This
The address of ground gateway record base station from home and tunnel end mark.
Preferably, after the address and tunnel end mark that local gateway records base station from home, said method also includes：This
Ground gateway will be the address of local gateway and tunnel end mark corresponding with the address of base station from home and tunnel end mark；Local gateway
The address of local gateway and tunnel end mark are sent to into core network element.
Preferably, said method is applied to one of following scene：Terminal is from global system for mobile communications enhanced data speed
Rate global mobile communication evolution technology wireless access network GERAN/ global system for mobile communications wireless access networks UTRAN is accessed, its
In, base station from home is Home node base station HNB, and mobile management unit is service universal grouping wireless business supporting node SGSN；Terminal
Access from evolved universal terrestrial radio access network EUTRAN, wherein, base station from home HeNB of the base station from home for evolution, moving tube
Reason unit is Mobility Management Entity MME.
Preferably, said method is applied to one of below scheme：PDN connection building process, Packet Data Protocol PDP Context
Activation process, attachment flow.
According to a further aspect in the invention, there is provided a kind of establishment of connection processing meanss, including：Determining module, is used for
Request determination is set up according to the carrying for receiving needs to set up locality connection；Sending module, locally connects for device is distributed to
The tunnel end mark for connecing and internet protocol address are sent to base station from home.
Preferably, determining module includes：Receiving submodule, sets up request for receiving to carry；Determination sub-module, is used for
In the case of association identification is included in it is determined that carrying foundation request, it is determined that needing to set up locality connection.
Preferably, sending module includes：Insertion submodule, sets up for tunnel end mark and IP address are inserted into carrying
In request；Sending submodule, is sent to base station from home for carrying is set up request.
Preferably, said apparatus also include：Receiver module, for distributing to locality connection in sending module by said apparatus
Tunnel end mark and after IP address is sent to base station from home, receive the address and tunnel of the base station from home that base station from home sends
End mark；Logging modle, for recording the address and tunnel end mark of base station from home.
Preferably, said apparatus also include：Respective modules, for recording the address and tunnel of base station from home in logging modle
After the mark of end, will be the address of said apparatus and tunnel end mark corresponding with the address of base station from home and tunnel end mark；Send out
Module is penetrated, for the address of said apparatus and tunnel end mark are sent to core network element.
By the present invention, set up request determination and need to set up locality connection according to carrying using local gateway, and by its point
The locally-attached tunnel end mark of dispensing and internet protocol address are sent to the mode of base station from home, solve correlation technique
In can not set up locally-attached problem according to actual needs, and then reached local gateway and set up according to different situations and locally connected
The effect for connecing.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the configuration diagram of the evolution grouping domain system according to correlation technique；
Fig. 2 is the configuration diagram for accessing local service according to a kind of user of correlation technique；
Fig. 3 is the configuration diagram for accessing local service according to another kind of user of correlation technique；
Fig. 4 is the configuration diagram for accessing local service according to another user of correlation technique；
Fig. 5 is the flow chart of establishment of connection processing method according to embodiments of the present invention；
Fig. 6 is according to embodiments of the present invention two flow chart for realizing connection establishment；
Fig. 7 is according to embodiments of the present invention three flow chart for realizing connection establishment；
Fig. 8 is according to embodiments of the present invention four flow chart for realizing connection establishment；
Fig. 9 is according to embodiments of the present invention five flow chart for realizing connection establishment；
Figure 10 is the structured flowchart of establishment of connection processing meanss according to embodiments of the present invention.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It is pointed out that in the following embodiments, if there is home base-station gateway, then the home base-station gateway can be with
It is considered the core network element in carrier network.
Embodiment one
In order to ensure that locality connection can be set up, need positioned at local gateway on base station from home and core network control surface path
According to different situations, how selection sets up locality connection.Therefore, embodiments provide a kind of establishment of connection to process
Method, the method can ensure that local gateway can be set up according to different information and judge whether to set up locality connection.
Fig. 5 is the flow chart of establishment of connection processing method according to embodiments of the present invention, as shown in figure 5, the method bag
Include：
Step S502, local gateway sets up request determination according to the carrying for receiving to be needed to set up locality connection；
Step S504, local gateway assign them to locally-attached tunnel end mark (Tunnel Endpoint
Identifier, referred to as TEID) and internet protocol address be sent to base station from home.
In the present embodiment, local gateway needs to set up locality connection according to foundation request determination is carried, and then, is distributed
Base station from home is sent to locally-attached tunnel end mark and internet protocol address such that it is able to select according to actual needs
Select and set up locality connection.
Wherein, step S502 can be realized in different ways, and for example, local gateway receives to carry sets up request
Afterwards, according to the information for wherein including judge set up for locality connection；Or, local gateway receives to carry sets up request
Afterwards, judge to carry and set up whether comprising association identification (correlation ID) in request, need to set up this if it is, determining
Ground connection.By the embodiment, local gateway is able to determine whether to need to set up locality connection.
In a preferred implementation of the embodiment of the present invention, step S504 can include：Local gateway is by tunnel end
Identify and IP address is inserted into carrying and sets up in request, and request is set up in carrying and be sent to base station from home.The present embodiment passes through
Carry to set up and ask for tunnel end mark and IP address to be sent to base station from home, with stronger practicality.
Wherein, the mode that tunnel end mark and IP address are inserted in carrying foundation request can be included many by local gateway
Kind, now only wherein several preferred modes are illustrated：
Mode one, local gateway distributes to locally-attached tunnel end mark using which and IP address is replaced to carry to set up and asked
Original tunnel end mark and IP address in asking；
Mode two, local gateway distributes to locally-attached tunnel end mark using which and IP address is replaced to carry to set up and asked
Original tunnel end mark and IP address in asking, and the association identification that deleting bearing is set up in request；
Mode three, local gateway assigns them to locally-attached tunnel end mark and IP address is added as newly-increased parameter
Set up in request to carrying.
The present embodiment will carry the mode set up in request there is provided various being inserted into tunnel end mark and IP address,
Bearing tunnel end mark and IP address in foundation request is carried can be played a part of.
Preferably, after it is determined that needing to set up locality connection, local gateway can also use a flag (flag)
Above-mentioned association identification is replaced, wherein, the flag is used for indicating whether to set up locality connection, i.e. local gateway is using new
Flag is carried as the related carrying of locality connection indicating certain.Association identification is general longer, and occupancy resource is more, using mark
Replace association identification and can economize on resources in position.
In another preferred implementation of the embodiment of the present invention, after step S504, can also be grasped as follows
Make：Local gateway receives the address of the base station from home of base station from home transmission and tunnel end mark；Then record the base station from home
Address and tunnel end mark.In the embodiment, local gateway can get the address of base station from home and tunnel end mark.
Preferably, after the address and tunnel end mark that local gateway records base station from home, local gateway is by LAN
The address of pass and tunnel end mark are corresponding with the address of base station from home and tunnel end mark；Local gateway is by the ground of local gateway
Location and tunnel end mark are sent to core network element, and alternatively, local gateway can replace base station from home ground with the address of oneself
Location and tunnel end mark.By the present embodiment, core network element will be sent to the data of base station from home can be according to local gateway
Address be sent to local gateway, then, according to the address of local gateway and the address of base station from home and tunnel end identify it is right
Should be related to, be then forwarded to base station, it is achieved thereby that application is locally connected to core net and is communicated.
Preferably, said method can be used for one of following scene：
Terminal is accessed from GERAN/UTRAN, and wherein, base station from home is HNB, and mobile management unit is SGSN；
Terminal is accessed from EUTRAN, wherein, base station from home HeNB of the base station from home for evolution, mobile management unit is MME.
Preferably, said method can apply to one of below scheme：PDN connection building process, PDP context activation stream
Journey, attachment flow.
Embodiment two
Fig. 6 apply to terminal from GERAN/UTRAN access packet switched core network (Packet Switched Core,
Referred to as PS Core or EPC), initiate Packet Data Protocol (Packet Data Protocol, referred to as PDP) context activation
Flow process.Wherein, base station from home is HNB, and mobile management unit is SGSN.There may be home base-station gateway in network, it is also possible to
There is no home base-station gateway.The present embodiment is by taking the framework for having home base-station gateway as an example.For no home base-station gateway
Framework, then local gateway and the information passed between mobile management unit all need not move through home base-station gateway, other with have
Home base-station gateway is similar to, and will not be described here.
As shown in fig. 6, the flow process includes：
Step S602, terminal send activation PDP Context request, and the non-access layer information is included in terminal and issues domestic
In the wireless connection establishment request of base station, the APN (Access that carried terminal is wanted to set up in the message, is needed
Point Name, referred to as APN).
Step S604, base station from home are included in the activation PDP Context request message for receiving in initial UE message and send out
Give local gateway.Wherein, the message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages
Primarily to delivering above-mentioned initial UE message, its concrete form is not limited.
Step S606, local gateway forward the initial UE message to be sent to home base-station gateway, wherein, the initial UE message
Plant and include activation PDP Context request message.The message can be encapsulated in connection message, or is defined new encapsulation and disappeared
Breath.Mainly for delivering above-mentioned initial UE message, its concrete form is not limited the encapsulation messages.
Initial UE message is sent to mobile management unit by step S608, home base-station gateway, wherein, the initial UE message
Plant and include activation PDP Context request message.
Step S610～612, mobile management unit is according to the APN or positional information or local gateway letter provided in message
Cease for its suitable local gateway address of selection.Then, mobile management unit is sent to local gateway by gateway and is created
Conversation request, wherein carries user equipment (User Equipment, referred to as UE) mark, PDP types, QoS information, charging
The parameters such as the positional information of information, APN and terminal.
Step S614～616, local gateway are returned to mobile management unit by gateway and create conversational response, wherein
Carry the information such as tunnel end mark and IP address, the qos parameter of mandate that promising local gateway is UE distribution.
Step S618, mobile management unit sends to carry to home base-station gateway sets up request, wherein carries and identifies this
The association identification of ground connection, the tunnel end mark of S-GW distribution and IP address.Wherein, further comprises Non-Access Stratum in the message to disappear
Breath " activation PDP Context response message ".
Step S620, home base-station gateway forwarding is carried sets up request, wherein includes activation PDP Context response and disappears
Breath.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages are primarily in delivery
State carrying and set up request message, its concrete form is not limited.
Home base-station gateway can choose whether to distribute tunnel according to whether require user plane through the home base-station gateway
End mark and IP address.If passed through, need to be allocated, and preserve the carrying for receiving and set up what is included in message originally
Tunnel end identifies and IP address, adds the tunnel end mark and IP address of its distribution in message is set up in the carrying for sending.The party
Formula is prior art, net loaded to locality connection relevant bearer and core to process consistent, be will not be described here.
The filling of message is set up in step S622～624, local gateway according to the carrying for setting up the type determination forwarding for carrying
Form.If relevant mark in bearer context, local gateway judges which is the related carrying of locality connection, otherwise, this
It is net loaded that ground gateway determines that it is core.
The carrying related for locality connection, local gateway can be by the message of filling step S624 in the following way.
Mode one：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message.
Mode two：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message, and association identification is deleted.It is preferred that
Association identification can also be replaced using a flag in ground, local gateway, and the flag is used for indicating whether to set up locality connection.
Mode three：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load is set up.
Net loaded for core, local gateway is according to whether require that the net loaded data of core are filled out to determine how by oneself
Fill the message of step S624.If requiring the net loaded data of core also by local gateway, local gateway is preserved and receives carrying
The tunnel end mark and IP address for being included in message originally is set up, and adds oneself distribution in message is set up in the carrying for sending
Tunnel end identifies and IP address.
Step S626, base station from home set up radio bearer for terminal.
Step S628, base station from home returns to carry to local gateway sets up response, wherein carries base station from home distribution
Tunnel end identifies and IP address.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages
Primarily to delivering above-mentioned initial UE message, its concrete form is not limited.
Whether step S630, local gateway are that locality connection relevant bearer determines follow-up operation according to carrying.If
Locally-attached relevant bearer, then local gateway need preserve base station from home distribution tunnel end mark and IP address, for descending
The transmission of data.If core is net loaded, then according to whether requiring the net loaded data of core by local gateway to judge such as
The message of what filling step S632.If requiring the net loaded data of core also by local gateway, local gateway is preserved and is received
To carrying set up the tunnel end mark and IP address that were included in message originally, and set up in message in the carrying for sending and add this
The tunnel end mark and IP address of ground gateway distribution.
Step S632～634, local gateway sends to carry to mobile management unit by home base-station gateway sets up response
Message.
Step S636～638, mobile management unit send modification to gateway and carry request, by the tunnel end of wireless side
Mark and IP address are sent to gateway.Gateway returns modification to mobile management unit and carries response.
The present embodiment is realized in terminal from GERAN/UTRAN EPC, when initiating PDP context activation flow process, sets up this
Ground connection.
Embodiment three
Fig. 7 applies to terminal from evolved universal terrestrial radio access network (Evovled Universal
Terrestrial Radio Access Network, referred to as EUTRAN) EPC networks are accessed, initiate PDN connection establishment streams
Journey.Wherein, base station from home is HeNB, and mobile management unit is MME.There may be home base-station gateway in network, it is also possible to no
There is home base-station gateway.The present embodiment is by taking the framework for having home base-station gateway as an example.For the frame for not having home base-station gateway
Structure, local gateway and the information passed between mobile management unit all need not move through home base-station gateway, other with have domestic
The framework of base-station gateway is similar to, and will not be described here.
As shown in fig. 7, the flow process includes：
Step S702, terminal send activation PDN connection requests, and the non-access layer information is included in terminal and issues domestic base
In the wireless connection establishment request stood.The APN that terminal is wanted to set up is carried in the message.
Step S704, base station from home are included in the PDN connection requests for receiving in initial UE message and are sent to LAN
Close.The message can also encapsulate the encapsulation messages of new definition, and the encapsulation messages are primarily to deliver the initial UE message, which has
Physique formula is not limited.
Initial UE message comprising PDN connection request messages is sent to home base-station gateway by step S706, local gateway.
The message can also encapsulate the encapsulation messages of new definition, and the encapsulation messages are primarily to deliver above-mentioned initial UE message, which has
Physique formula is not limited.
The initial UE message is sent to mobile management unit by step S708, home base-station gateway, wherein includes PDN companies
Connect request message.
Step S710～712, mobile management unit is according to the APN or positional information or local gateway letter provided in message
Cease for its suitable local gateway address of selection.Mobile management unit sends establishment session by gateway to local gateway please
Ask, wherein carry the parameters such as UE marks, PDP types, QoS information, charge information, APN, the positional information of terminal.
Step S714～716, local gateway are returned to mobile management unit by gateway and create conversational response, wherein
Carry the information such as tunnel end mark and IP address, the qos parameter of mandate that local gateway is UE distribution.
Step S718, mobile management unit sends to carry to home base-station gateway sets up request, wherein carries and identifies this
The association identification of ground connection, the tunnel end mark of S-GW distribution and IP address.It is " silent that non-access layer information is further comprises in the message
Recognize bearing activation request message ".
Step S720, home base-station gateway forwarding is carried sets up request, wherein includes default bearing activation request message.
The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages are held mainly for delivery is above-mentioned
Load sets up request message, and its concrete form is not limited.
Home base-station gateway can choose whether to distribute tunnel according to whether require user plane through the home base-station gateway
End mark and IP address.If passed through, need to be allocated, preserve the carrying for receiving and set up the tunnel for being included in message originally
Road end identifies and IP address, and adds tunnel end mark and the IP of home base-station gateway distribution in message is set up in the carrying for sending
Address.Which is prior art, net loaded to locality connection relevant bearer and core to process consistent, be will not be described here.
The filling of message is set up in step S722～724, local gateway according to the carrying for setting up the type determination forwarding for carrying
Form.If relevant mark in bearer context, local gateway judges which is the related carrying of locality connection, otherwise, this
It is net loaded that ground gateway determines that it is core.
The carrying related for locality connection, local gateway can be by the message of filling step S724 in the following way.
Mode one：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message.
Mode two：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message, and association identification is deleted.It is preferred that
Association identification can also be replaced using a flag in ground, local gateway, and the flag is used for indicating whether to set up locality connection.
Mode three：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load is set up.
Net loaded for core, local gateway is according to whether require the net loaded data of core by the local gateway to judge
The how message of filling step S724.If requiring the net loaded data of core also by local gateway, local gateway is preserved and is connect
The tunnel end mark and IP address for being included in message originally is set up in the carrying for receiving, and adds in message is set up in the carrying for sending
The tunnel end mark of oneself distribution and IP address.
Step S726, base station from home set up radio bearer for terminal.
Step S728, base station from home returns to carry to local gateway sets up response, wherein carries base station from home distribution
Tunnel end identifies and IP address.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages
Primarily to delivering above-mentioned initial UE message, its concrete form is not limited.
Whether step S730, local gateway are that locality connection relevant bearer determines follow-up operation according to carrying.If
Locally-attached relevant bearer, then local gateway need preserve base station from home distribution tunnel end mark and IP address, for descending
The transmission of data.If core is net loaded, then according to whether requiring the net loaded data of core by the local gateway to judge
The how message of filling step S732.If requiring the net loaded data of core also by local gateway, local gateway is preserved and is connect
The tunnel end mark and IP address for being included in message originally is set up in the carrying for receiving, and adds in message is set up in the carrying for sending
The tunnel end mark of local gateway distribution and IP address.
Step S732～734, local gateway sends to carry to mobile management unit by home base-station gateway sets up response
Message.
Step S736, terminal are returned silent by base station from home, local gateway and home base-station gateway to mobile management unit
Recognize bearing activation response message.
Step S738～740, mobile management unit send modification to gateway and carry request, by the tunnel end of wireless side
Mark and IP address are sent to gateway.Gateway returns modification to mobile management unit and carries response.
The present embodiment is realized and accesses EPC networks in terminal from EUTRAN, when initiating PDN connection building process, sets up this
Ground connection.
Example IV
Fig. 8 applies to terminal and accesses GPRS network from GERAN/UTRAN, initiates PDP context activation flow process.Wherein,
Base station from home is HNB, and mobile management unit is SGSN.There may be home base-station gateway in network, it is also possible to there are no domestic
Base-station gateway.The present embodiment is by taking the framework for having home base-station gateway as an example.For the framework for not having home base-station gateway, LAN
Close and the information passed between mobile management unit all need not move through home base-station gateway, other and have home base-station gateway
Framework is similar to, and will not be described here.
As shown in figure 8, the flow process includes：
Step S802, terminal send activation PDP Context request, and the non-access layer information is included in terminal and issues domestic
In the wireless connection establishment request of base station.The APN for needing carried terminal to want to set up in the message.
Step S804, base station from home are included in the activation PDP Context request message for receiving in initial UE message and send out
Give local gateway.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages are mainly
In order to deliver the initial UE message, its concrete form is not limited.
The initial UE message comprising activation PDP Context request message is sent to domestic by step S806, local gateway
Base-station gateway.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages primarily to
Above-mentioned initial UE message is delivered, its concrete form is not limited.
Initial UE message is sent to mobile management unit by step S808, home base-station gateway, wherein includes activation PDP
Context request message.
Step S810, mobile management unit according to the APN or positional information or local gateway information that provide in message is
Its suitable local gateway address of selection.Mobile management unit sends to local gateway and creates PDP Context request, wherein carries
There are the parameters such as UE marks, PDP types, QoS information, charge information, APN, the positional information of terminal.
Step S812, local gateway are returned to mobile management unit and create PDP Context response, wherein carry LAN
Close the information such as tunnel end mark and IP address for UE distribution, the qos parameter for authorizing.
Step S814, mobile management unit sends to carry to home base-station gateway sets up request, wherein carries and identifies this
The tunnel end mark of the association identification of ground connection, local gateway or mobile management unit distribution and IP address.Also wrap in the message
Containing non-access layer information " activation PDP Context response message ".
Step S816, home base-station gateway forwarding is carried sets up request, wherein includes activation PDP Context response and disappears
Breath.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages are somebody's turn to do primarily to delivering
Request message is set up in carrying, and its concrete form is not limited.
Home base-station gateway can choose whether to distribute tunnel according to whether require user plane through the home base-station gateway
End mark and IP address.If passed through, need to be allocated, preserve the carrying for receiving and set up the tunnel for being included in message originally
Road end identifies and IP address, and add in message is set up in carryings for sending the tunnel end mark of home base-station gateway distribution with
IP address.Which is prior art, net loaded to locality connection relevant bearer and core to process consistent, be will not be described here.
The filling of message is set up in step S818～820, local gateway according to the carrying for setting up the type decision forwarding for carrying
Form.If relevant mark in bearer context, local gateway judges which is the related carrying of locality connection, otherwise, this
Ground gateway thinks which is that core is net loaded.
The carrying related for locality connection, local gateway can be by the message of filling step S820 in the following way.
Mode one：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message.
Mode two：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message, and association identification is deleted.It is preferred that
Association identification can also be replaced using a flag in ground, local gateway, and the flag is used for indicating whether to set up locality connection.
Mode three：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load is set up.
Net loaded for core, local gateway is according to whether require that the net loaded data of core are filled out to determine how by oneself
Fill the message of step S820.If requiring the net loaded data of core by local gateway, what local gateway preservation was received holds
Load sets up the tunnel end mark and IP address for being included in message originally, and in message is set up in the carrying for sending adds the LAN
Close the tunnel end mark and IP address of distribution.
Step S822, base station from home set up radio bearer for terminal.
Step S824, base station from home returns to carry to local gateway sets up response, wherein carries base station from home distribution
Tunnel end identifies and IP address.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages
Primarily to delivering above-mentioned initial UE message, its concrete form is not limited.
Whether step S826, local gateway are that locality connection relevant bearer determines follow-up operation according to carrying.If
Locally-attached relevant bearer, then local gateway need preserve base station from home distribution tunnel end mark and IP address, for descending
The transmission of data.If core is net loaded, then according to whether requiring that the net loaded data of core are filled out to determine how by oneself
Fill the message of step S828.If requiring the net loaded data of core also by local gateway, local gateway preserves what is received
Carrying set up included in message originally tunnel end mark and IP address, and send carrying set up message in add oneself point
The tunnel end mark matched somebody with somebody and IP address.
Step S828～830, local gateway sends to carry to mobile management unit by home base-station gateway sets up response
Message.
The present embodiment is realized and accesses GPRS network in terminal from GERAN/UTRAN, initiates PDP context activation flow process
When, set up locality connection.
Embodiment five
Fig. 9 applies to terminal and accesses EPC networks from EUTRAN, initiates to set up locally-attached flow process during attachment flow.
Wherein, base station from home is HeNB, and mobile management unit is MME.There may be home base-station gateway in network, it is also possible to do not exist
Home base-station gateway.The present embodiment is by taking the framework for having home base-station gateway as an example.For the framework for not having home base-station gateway, this
Ground gateway and the information passed between mobile management unit all need not move through home base-station gateway, other and have base station from home net
The framework of pass is similar to, and will not be described here.
As shown in figure 9, the flow process includes：
Step S902, terminal send activation attach request, and the non-access layer information is included in terminal and issues base station from home
The request of wireless connection establishment in.
Step S904, base station from home are included in the attach request for receiving in initial UE message and are sent to local gateway.
The message can encapsulate the encapsulation messages of new definition, and the encapsulation messages are primarily to deliver above-mentioned initial UE message, which is concrete
Form is not limited.
The initial UE message for including Attach Request message is sent to home base-station gateway by step S906, local gateway.
The message can also encapsulate the encapsulation messages of new definition, and the encapsulation messages are primarily to deliver above-mentioned initial UE message, which has
Physique formula is not limited.
Initial UE message is sent to mobile management unit by step S908, home base-station gateway, wherein comprising attach request
Message.The acquisition of APN information is that, after secure connection is set up, the process is prior art, be will not be described here.
Step S910～912, mobile management unit are closed for its selection according to APN or positional information or local gateway information
Suitable local gateway address.Mobile management unit is sent to local gateway by gateway and creates conversation request, is wherein carried
There are the parameters such as UE marks, PDP types, QoS information, charge information, APN, the positional information of terminal.
Step S914～916, local gateway are returned to mobile management unit by gateway and create conversational response, wherein
Carry the information such as the tunnel end mark and IP address for local gateway is UE distribution, the qos parameter of mandate.
Step S918, mobile management unit sends to carry to home base-station gateway sets up request, wherein carries and identifies this
The association identification of ground connection, the tunnel end mark of S-GW distribution and IP address.It is " silent that non-access layer information is further comprises in the message
Recognize bearing activation request message ".
Step S920, home base-station gateway forwarding is carried sets up request, wherein includes default bearing activation request message.
The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages are primarily to deliver above-mentioned
Request message is set up in carrying, and its concrete form is not limited.
Home base-station gateway can choose whether to distribute tunnel according to whether require user plane through the home base-station gateway
End mark and IP address.If passed through, need to be allocated, preserve the carrying for receiving and set up the tunnel for being included in message originally
Road end identifies and IP address, and add in message is set up in carryings for sending the tunnel end mark of home base-station gateway distribution with
IP address.Which is prior art, net loaded to locality connection relevant bearer and core to process consistent, be will not be described here.
The filling of message is set up in step S922～924, local gateway according to the carrying for setting up the type determination forwarding for carrying
Form.If relevant mark in bearer context, local gateway judges which is the related carrying of locality connection, otherwise, this
It is net loaded that ground gateway determines that it is core.
The carrying related for locality connection, local gateway can be by the message of filling step S924 in the following way.
Mode one：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message.
Mode two：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load sets up the tunnel end mark and IP address filled in replacing original message in request message, and association identification is deleted.It is preferred that
Association identification can also be replaced using a flag in ground, local gateway, and the flag is used for indicating whether to set up locality connection.
Mode three：Local gateway is locality connection relevant bearer distribution tunnel end mark and IP address, and in holding for sending
Load is set up.
Net loaded for core, local gateway is according to whether require the net loaded data of core by the local gateway to judge
The how message of filling step S924.If requiring the net loaded data of core by local gateway, local gateway is preserved and is received
To carrying set up the tunnel end mark and IP address that were included in message originally, and set up in message in the carrying for sending and add this
The tunnel end mark and IP address of ground gateway distribution.
Step S926, base station from home set up radio bearer for terminal.
Step S928, base station from home returns to carry to local gateway sets up response, wherein carries base station from home distribution
Tunnel end identifies and IP address.The message can be encapsulated in connection message, or defines new encapsulation messages.The encapsulation messages
Primarily to delivering above-mentioned initial UE message, its concrete form is not limited.
Whether step S930, local gateway are that locality connection relevant bearer determines follow-up operation according to carrying.If
Locally-attached relevant bearer, then local gateway need preserve base station from home distribution tunnel end mark and IP address, for descending
The transmission of data.If core is net loaded, then according to whether requiring the net loaded data of core by local gateway to determine such as
The message of what filling step S932.If requiring the net loaded data of core also by local gateway, local gateway is preserved and is received
To carrying set up the tunnel end mark and IP address that were included in message originally, and set up in message in the carrying for sending and add this
The tunnel end mark and IP address of ground gateway distribution.
Step S932～934, local gateway sends to carry to mobile management unit by home base-station gateway sets up response
Message.
Step S936, terminal are returned silent by base station from home, local gateway and home base-station gateway to mobile management unit
Recognize bearing activation response message.
Step S938～940, mobile management unit send modification to gateway and carry request, by the tunnel end of wireless side
Mark and IP address are sent to gateway.Gateway returns modification to mobile management unit and carries response.
The present embodiment realizes terminal and accesses EPC networks from EUTRAN, when initiating attachment flow, sets up locality connection.
Embodiment six
A kind of establishment of connection processing meanss are embodiments provided, the device is used for realizing embodiment one to enforcement
Method in example five, wherein, the device can be local gateway.
Figure 10 is the according to embodiments of the present invention structured flowchart for setting up processing meanss for connecing, as shown in Figure 10, the device
Including：Determining module 1002, needs to set up locality connection for setting up request determination according to the carrying for receiving；Sending module
1004, coupled to determining module 1002, for device is distributed to locally-attached tunnel end mark and Internet protocol IP ground
Location is sent to base station from home.
In the present embodiment, the device needs to set up locality connection according to foundation request determination is carried, and then, assigns them to
Locally-attached tunnel end mark and internet protocol address are sent to base station from home such that it is able to select according to actual needs
Set up locality connection.
Wherein it is determined that module 1002 includes：Receiving submodule, sets up request for receiving to carry；Determination sub-module, coupling
Receiving submodule is bonded to, in the case of it is determined that association identification is included in carrying foundation request, it is determined that needing foundation locally
Connection.By the embodiment, the device is able to determine whether to need to set up locality connection.
In a preferred implementation of the embodiment of the present invention, sending module 1004 includes：Insertion submodule, for inciting somebody to action
Tunnel end identifies and IP address is inserted into carrying and sets up in request；Sending submodule, coupled to insertion submodule, for carrying
Set up request and be sent to base station from home.The present embodiment asks for tunnel end mark and IP address to be sent to domestic by carrying to set up
Base station, with stronger practicality.
Wherein, inserting submodule can have various implementations, for example, insert submodule, for distributing to this using which
The tunnel end mark of ground connection and IP address are replaced to carry and set up original tunnel end mark and IP address in request；Or, use
Original tunnel end mark in locally-attached tunnel end mark and IP address replacement carrying foundation request is distributed to using which
And IP address, and the association identification that deleting bearing is set up in request；Or, the device is distributed to into locally-attached tunnel end mark
Know and IP address is added to carrying as newly-increased parameter and sets up in request.The present embodiment will there is provided it is various by tunnel end mark and
IP address is inserted into and carries the mode set up in request, can play bearing tunnel end mark and IP ground in foundation request is carried
The effect of location.
Preferably, the device also includes：Replacement module, for after it is determined that needing to set up locality connection, local gateway
Above-mentioned association identification can also be replaced using a flag (flag), wherein, the flag is used for indicating whether to set up local
Connection.Association identification is general longer, and occupancy resource is more, and replacing association identification using flag can economize on resources.
In another preferred implementation of the embodiment of the present invention, the device also includes：Receiver module, for receiving
The address and tunnel end mark of the base station from home that base station from home sends；Logging modle, coupled to receiver module, for recording the family
Identified with the address and tunnel end of base station.In the embodiment, local gateway can get the address of base station from home and tunnel end
Mark.
Preferably, the device also includes：Respective modules, for recording the address and tunnel end of base station from home in logging modle
After mark, will be the address of said apparatus and tunnel end mark corresponding with the address of base station from home and tunnel end mark；Transmitting
Module, coupled to respective modules, for being sent to core network element by the address of said apparatus and tunnel end mark.By this reality
Example is applied, and core network element will be sent to the data of base station from home and said apparatus can be sent to according to the address of local gateway, so
Afterwards, the corresponding relation for being identified with the address of base station from home and tunnel end according to the address of the device, is then forwarded to base station, so as to reality
Show.
Preferably, said apparatus can be used for one of following scene：
Terminal is accessed from GERAN/UTRAN, and wherein, base station from home is HNB, and mobile management unit is SGSN；
Terminal is accessed from EUTRAN, wherein, base station from home HeNB of the base station from home for evolution, mobile management unit is MME.
Preferably, said apparatus can apply to one of below scheme：PDN connection building process, PDP context activation stream
Journey, attachment flow.
In another embodiment, additionally provide a kind of establishment of connection and process software, the software is above-mentioned for performing
Technical scheme described in embodiment and preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, be stored with the memory mechanism above-mentioned connection
Set up and process software.
In sum, the embodiment of the present invention sets up request determination by local gateway according to carrying needs foundation locally to connect
Connect, then, assign them to the mode that locally-attached tunnel end mark and internet protocol address are sent to base station from home,
Can select to set up locality connection according to actual needs.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general
Computing device realizing, they can be concentrated on single computing device, or are distributed in multiple computing devices and are constituted
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to they are stored
In the storage device by computing device performing, and in some cases, can be with shown in performing different from order herein
The step of going out or describe, or they are fabricated to each integrated circuit modules respectively, or by the multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of establishment of connection processing method, it is characterised in that include：
Local gateway sets up request determination according to the carrying for receiving to be needed to set up locality connection；
The local gateway assigns them to locally-attached tunnel end mark and internet protocol address is sent to house
Use base station；
Wherein, the local gateway assigns them to locally-attached tunnel end mark and IP address is sent to base station from home
Including one below：The local gateway distributes to locally-attached tunnel end mark and the IP address using which
Replace described carrying and set up original tunnel end mark and IP address in request, and by it is described carry set up request be sent to it is described
Base station from home；The local gateway distributes to locally-attached tunnel end mark using which and the IP address is replaced
Described carrying sets up original tunnel end mark and IP address in request, deletes the association identification for carrying and setting up in request,
And described carrying is set up request and be sent to the base station from home；The local gateway assigns them to locally-attached institute
State tunnel end mark and the IP address to be added in the carrying foundation request as newly-increased parameter, and described carrying is set up
Request is sent to the base station from home.
2. method according to claim 1, it is characterised in that the carrying that the local gateway is received is set up request and determined
Needing to set up locality connection includes：
The local gateway receives described carrying and sets up request；
The local gateway judges that described carrying is set up whether comprising association identification in request, needs to set up if it is, determining
The locality connection.
3. method according to claim 1, it is characterised in that after it is determined that needing to set up the locality connection, described
Method also includes：
The local gateway replaces the association identification using a flag, and wherein, the flag is used for indicating whether to build
Found the locality connection.
4. according to the method in any one of claims 1 to 3, it is characterised in that assign them in the local gateway
After locally-attached tunnel end mark and IP address are sent to base station from home, methods described also includes：
The local gateway receives the address and tunnel end mark of the base station from home that the base station from home sends；
The local gateway records the address of the base station from home and tunnel end mark.
5. method according to claim 4, it is characterised in that record the address of the base station from home in the local gateway
After the mark of tunnel end, methods described also includes：
The address of the local gateway and tunnel end are identified the local gateway address and tunnel end with the base station from home
Mark is corresponding；
The address of the local gateway and tunnel end mark are sent to core network element by the local gateway.
6. according to the method in any one of claims 1 to 3, it is characterised in that methods described be applied to following scene it
One：
Terminal is from global system for mobile communications enhanced data rates global mobile communication evolution technology wireless access network GERAN/
Global system for mobile communications wireless access network UTRAN access, wherein, the base station from home be Home node base station HNB, mobile management list
Unit is service universal grouping wireless business supporting node SGSN；
The terminal is accessed from evolved universal terrestrial radio access network EUTRAN, wherein, family of the base station from home for evolution
Base station HeNB is used, the mobile management unit is Mobility Management Entity MME.
7. according to the method in any one of claims 1 to 3, it is characterised in that methods described be applied to below scheme it
One：
PDN connection building process, Packet Data Protocol PDP context activation flow process, attachment flow.
8. a kind of establishment of connection processing meanss, it is characterised in that include：
Determining module, needs to set up locality connection for setting up request determination according to the carrying for receiving；
Sending module, for distributing to locally-attached tunnel end mark and internet protocol address by described device
Give base station from home；
Wherein, the sending module is additionally operable to perform one below：Locally-attached tunnel end is distributed to using which
Mark and the IP address are replaced described carrying and set up original tunnel end mark and IP address in request, and described carrying is built
Vertical request is sent to the base station from home；Locally-attached tunnel end mark and the IP address are distributed to using which
Replace described carrying and set up original tunnel end mark and IP address in request, delete the association mark for carrying and setting up in request
Know, and request is set up in the carrying and be sent to the base station from home；Assign them to locally-attached tunnel end
Identify and the IP address is added to described carrying as newly-increased parameter and sets up in request, and request is set up in the carrying and send
To the base station from home.
9. device according to claim 8, it is characterised in that the determining module includes：
Receiving submodule, sets up request for receiving described carrying；
Determination sub-module, in the case of it is determined that including association identification in the carrying foundation request, it is determined that need to set up
The locality connection.
10. device according to claim 8, it is characterised in that the sending module includes：
Insertion submodule, sets up in request for tunnel end mark and the IP address are inserted into described carrying；
Sending submodule, is sent to the base station from home for the carrying is set up request.
11. devices according to any one of claim 8 to 10, it is characterised in that described device also includes：
Receiver module, for distributing to locally-attached tunnel end mark and IP ground in the sending module by described device
After location is sent to the base station from home, the address and tunnel end mark of the base station from home that the base station from home sends is received
Know；
Logging modle, for recording the address and tunnel end mark of the base station from home.
12. devices according to claim 11, it is characterised in that described device also includes：
Respective modules, after the address and tunnel end for recording the base station from home in the logging modle identifies, will be described
The address of device and tunnel end mark are corresponding with the address of the base station from home and tunnel end mark；
Transmitter module, for being sent to core network element by the address of described device and tunnel end mark.
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