CN104581996B - A kind of reattachment method and system of user equipment - Google Patents
A kind of reattachment method and system of user equipment Download PDFInfo
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- CN104581996B CN104581996B CN201410832164.0A CN201410832164A CN104581996B CN 104581996 B CN104581996 B CN 104581996B CN 201410832164 A CN201410832164 A CN 201410832164A CN 104581996 B CN104581996 B CN 104581996B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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Abstract
The present invention provides a kind of reattachment method and system of user equipment, wherein, the method includes：Local bearer context information is configured before sending default bearing and establishing request message to PGW in SGW；The SGW receives the default bearing that the PGW is sent and establishes after response message, and the local bearer context information being configured is updated；The SGW sends default bearing and establishes response message to MME, to complete the reattachment of user equipment (UE) by the MME after being updated to the local bearer context information being configured.The present invention fundamentally solves the user that SGW service surfaces trigger due to local tunnel is not present and discharges flow extremely, ensures keeping high-speed downloads, user's reattachment can still be normally carried out business forwarding without being discharged extremely.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of reattachment method and system of user equipment.
Background technology
In LTE (Long Term Evolution, long term evolution) network, UE (User Equipment, user equipment)
Attaching process as shown in Figure 1, attaching process is as follows：
1) attach request is initiated in, UE bootings, to MME ((Mobility Management Entity, mobile management entity)
Send attach request (Attach Request) message.
2), MME sends conversation establishing request (Create Session Request) message and gives SGW (Serving
Gateway, gateway), default bearing is established in request.
3), SGW sends Create Session Request message and gives PGW (PDN Gateway, grouped data connection net
It closes).
If 4), deploy dynamic PCC (Policy And Charging Control, strategy and charging control), PGW
IP-CAN is initiated to PCRF (Policy and Charging Rules Function, strategy and charge execution function unit)
(IP-Connectivity Access Network, IP connection access network) session establishment flow (optional).
5), PGW response sessions create response (Create Session Response) message to SGW, then SGW responses
Create Session Response message is to MME.
6), MME sends initial context foundation request (Initial Context Setup Request) message and gives
ENodeB (Evolved NodeB, evolution base station), the inside, which carries to adhere to, receives (Attach Accept) message, in the message
Contain activation acquiescence Evolved Packet System bearer context request (Activate Default EPS Bearer
Context Request) message, it is desirable that establish default bearing.
7), UE returns to attachment and completes (Attach Complete) message, and eNodeB returns to initial context and establishes response
(Initial Context Setup Response) message establishes default bearing success.
8), MME sends more new bearer request (Modify Bearer Request) information updating eNodeB addresses to SGW
With Tunnel End Point Identifier TEID, SGW response success messages.
In the core network, each network element internal Signalling exchange subsystem diagram of MME, SGW and PGW is as shown in Figure 2：
MSPS (MME Signal Process Sub-system, MME network element signaling processing subsystem) selections in MME
SSPS (SGW Signal Process Sub-system, SGW network element signalings processing subsystem) in one SGW, and give and be somebody's turn to do
SSPS sends Create Session Request message.Create Session Requeste message is transmitted to by the SSPS
The PSPS (PGW Signal Process Sub-system, PGW network element signalings processing subsystem) of PGW, PSPS check maximum
(whether (Access Point Name, access point) limits value APN limits values associated with current bearer context request by APN
Conflict.If do not conflicted, the request of this session establishment will allow, and otherwise refuse this request.
UPPS in PSPS notices PGW gives SSPS replies Create after completing PGW network element bearer context information configurations
Session Response message, the UPPS that SSPS is received after the message in notice SGW create bearer context information (tunnel,
IP etc.), after UPPS creates bearer context information, SSPS replys Create Session Response message to MSPS.This step
After, any downlink grouped data received from PGW of UPPS cachings of SGW, before MSPS sends new information, SSPS cannot
Downlink data notification message is sent to MSPS.
Due to the establishment of PGW network element bearer context information, prior to the establishment of SGW network element bearer context information.In PGW
After the completion of bearer context information creating, then by Create Session Response message informings SGW create carrying this
In the section time, if there is downlink business exists, after data packet selects to reach SGW by PGW tunnels, since SGW is carried at this time
Contextual information is not set up also, leads to search local tunnel failure so as to trigger error identification (ERROR INDICATION) message
It notifies PGW releasing bearings, is soon discharged after user's reattachment, it is obstructed to eventually lead to service surface.
UE is in attaching process if quiet by HSS (Home Subscriber Server, main Subscriber) or PGW
State distribution IP address simultaneously adheres to success, is keeping downloading service constantly or by server long ping (network diagnostic tool) always
Adhere to again again in the case of terminal, during reattachment, when SGW receives the Create Session of MME transmissions
After Request message, Create Session Request message is sent directly to PGW.It is completed after PGW receives the message
Local resource matches to postpone replys Create Session Response message to SGW again, and SGW is reconfigured after receiving response message
Local resource.As a result, PGW configure into local resource receive to SGW do not complete also after response local resource configuration this
In period, because completion, triggering ERROR INDICATION is not configured also in its carrying information after SGW receives downlink data packet
Message informing PGW releasing bearings soon discharge after user's reattachment, it is obstructed to eventually lead to business.
Invention content
The present invention provides a kind of reattachment method and system of user equipment, after solving existing user equipment reattachment
The problem of releasing immediately Internet resources, causing business obstructed.
To solve the above-mentioned problems, the invention discloses a kind of reattachment method of user equipment, including：
Gateway SGW is before sending default bearing and establishing request message to grouped data connection gateway PGW, and configuration is originally
Ground bearer context information；
The SGW receives the default bearing that the PGW is sent and establishes after response message, and the local being configured is held
Contextual information is carried to be updated；
The SGW sends default bearing and establishes after being updated to the local bearer context information being configured
Response message is to mobile management entity MME, to complete the reattachment of user equipment (UE) by the MME.
Preferably, the local bearer context information of SGW configurations, including：
The SGW establishes local terminal bearing tunnel and opposite end bearing tunnel；
The local bearer context, which is configured, by the local terminal bearing tunnel and the opposite end bearing tunnel in the SGW believes
Breath.
Wherein, the local terminal bearing tunnel includes local terminal bearing tunnel information；No pair in the opposite end bearing tunnel
Hold bearing tunnel information.
Preferably, the SGW establishes local terminal bearing tunnel, including：
Signaling processing subsystem SSPS in the SGW network elements notifies the user plane processing subsystem UPPS of the SGW to build
Vertical S1u interfaces and/or Ss58 interface local terminal bearing tunnels.
Preferably, the local carrying is configured by the local terminal bearing tunnel and the opposite end bearing tunnel in the SGW
Contextual information, including：
The SSPS of the SGW is received to be held from the gateways sent of the signaling processing subsystem PSPS in the PGW network elements
Load establishes response message, to establish the local terminal bearing tunnel completed and the configuration of opposite end bearing tunnel originally by the UPPS of the SGW
Ground bearer context information.
Preferably, the SGW is updated the local bearer context information being configured, including：
The SSPS of the SGW sends service gateway bearing and updates request message to the UPPS of the SGW, notifies the SGW
UPPS the local bearer context information being configured is updated；
Wherein, the service gateway bearing update request message includes peer IP address and Tunnel End Point Identifier.
Correspondingly, the invention also discloses a kind of reattachment system of user equipment, including：User equipment (UE), service network
Pass SGW, grouped data connection gateway PGW and mobile management entity MME, the SGW, including：
Local carrying configuration module establishes request message to grouped data connection for sending default bearing in the SGW
Before gateway PGW, local bearer context information is configured；
Local bearer update module, the default bearing for receiving the PGW transmissions in the SGW establish response message
Later, the local bearer context information being configured is updated；
Reattachment module, in the SGW after being updated to the local bearer context information being configured,
It sends default bearing and establishes response message to mobile management entity MME, it is attached to complete the weight of user equipment (UE) by the MME
It.
Preferably, the local carrying configuration module, including：
Bearing tunnel setting up submodule, for establishing local terminal bearing tunnel and opposite end bearing tunnel；
Local carrying configuration submodule, it is local for passing through the local terminal bearing tunnel and opposite end bearing tunnel configuration
Bearer context information；
Wherein, the local terminal bearing tunnel includes local terminal bearing tunnel information；No pair in the opposite end bearing tunnel
Hold bearing tunnel information.
Preferably, the bearing tunnel setting up submodule is led to using the signaling processing subsystem SSPS in the SGW network elements
Know that the user plane processing subsystem UPPS of the SGW establishes S1u interfaces and/or Ss58 interface local terminal bearing tunnels.
Preferably, the local carrying configuration submodule is received using the SSPS of the SGW from the letter in the PGW network elements
The service gateway bearing that processing subsystem PSPS is sent is enabled to establish response message, to establish what is completed by the UPPS of the SGW
Local terminal bearing tunnel and the local bearer context information of opposite end bearing tunnel configuration.
Preferably, the local bearer update module sends service gateway bearing update request using the SSPS of the SGW
Message notifies the UPPS of the SGW to be updated the local bearer context information being configured to the UPPS of the SGW；
Wherein, the service gateway bearing update request message includes peer IP address and Tunnel End Point Identifier.
Compared with background technology, the present invention includes advantages below：
SGW is configured local bearer context information, is receiving before sending default bearing and establishing request message to PGW
After the default bearing sent to PGW establishes response message, the local bearer context information being configured is updated, i.e.,
Bearer context information is configured before bearer context information is configured in PGW in SGW, if there is downlink business exists, works as data packet
It, can be according to bearer context information that SGW has been configured execution downlink business, from basic after reaching SGW by PGW tunnels
On solve the user that SGW service surfaces trigger due to local tunnel is not present and discharge flow extremely, ensure keeping high-speed downloads
In the case of, user's reattachment can still be normally carried out business forwarding without being discharged extremely.
Description of the drawings
Fig. 1 is the attaching process schematic diagram of UE in background technology；
Fig. 2 is each network element internal Signalling exchange subsystem diagram of MME, SGW and PGW in background technology；
Fig. 3 is a kind of sequence diagram of the reattachment method of user equipment in the embodiment of the present invention；
Fig. 4 is a kind of flow chart of the reattachment method of user equipment in the embodiment of the present invention one；
Fig. 5 is a kind of flow chart of the reattachment method of user equipment in the embodiment of the present invention two；
Fig. 6 is a kind of structure chart of the reattachment system of user equipment in the embodiment of the present invention three；
Fig. 7 is a kind of structure chart of the reattachment system of user equipment in the embodiment of the present invention four.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Before SGW sends Create Session Request message to PGW, first configuration is local to hold technical solution of the present invention
Contextual information is carried, then after the completion of bearer context information is configured in PGW, according to the Create Session of PGW returns
Response message issues bearing update message to the UPPS of SGW network elements again, and opposite end IP and tunnel are updated.Fundamentally
It solves the user that SGW service surfaces trigger due to local tunnel is not present and discharges flow extremely.Ensure keeping high-speed downloads feelings
Under condition, user's reattachment can still be normally carried out business forwarding without being discharged extremely.
The sequence diagram of technical solution of the present invention is as shown in figure 3, the SSPS transmissions Create Session Request of SGW disappear
Before breath to the PSPS of PGW, the SSPS of SGW first sends the local load creating request message at SGW ends to the UPPS of SGW
(EPSBEAR_SGTPC_BEAR_CREATE_REQ_MSG) UPPS of notice SGW creates S1u interfaces, the local terminal of Ss58 interfaces is held
Tunnel and opposite end (PGW ends) bearing tunnel are carried, wherein, local terminal bearing tunnel includes local terminal bearing tunnel message, and opposite end is held
It is sky to carry the message in tunnel.The SSPS of SGW receives the local load creating response message (EPSBEAR_SGTPC_ at SGW ends
BEAR_CREATE_RSP_MEG Create Session Request message) is sent to the PSPS of PGW afterwards, session request allows
Afterwards, after the local bearer context information of PSPS configurations of PGW, then the SSPS reply Create Session Response to SGW
Message, the SSPS of SGW, which is received, to be sent the local bearer update request at SGW ends after Create Session Response message and disappears
Breath (EPSBEAR_SGTPC_BEAR_UPDATE_REQ_MEG) notifies it to update carrying information (during comprising creating to the UPPS of SGW
The several parameter informations not carried：Opposite end IPv4, IPv6 address, TEID etc.).After carrying information is updated successfully, the UPPS of SGW to
The local bearer update response message (EPSBEAR_SGTPC_BEAR_UPDATE_RSP_MEG) that the SSPS of SGW returns to SGW ends disappears
Breath, the SSPS of SGW reply Create Session Response message to the MSPS of MME.Hereafter, the UPPS cachings of SGW are any
The downlink grouped data received from PGW.Before the MSPS of MME sends revision message, the SSPS of SGW does not give the MSPS of MME to send out
Send downlink data notification message.
Technical solution of the present invention ensures under various environment, will not be discharged after user equipment abnormal restarting by abnormal again.
During carrying at the fast speed, after user equipment reattachment, business face data can still ensure normally to forward.
Technical solution of the present invention can improve percent of call completed of the user equipment under various abnormal environments and operation during reattachment,
User equipment is avoided to be discharged extremely, is normally carried out so as to which service surface downloading service be effectively ensured, is played to improving product quality
Important function.
Technical solution of the present invention fundamentally solves the problems, such as load creating shake and business when user equipment is quick-downloading
Obstructed problem.
Below by the reattachment for enumerating several specific embodiments and being discussed in detail a kind of user equipment provided by the invention
Method and system.
Embodiment one
A kind of reattachment method of user equipment provided in an embodiment of the present invention is discussed in detail.
With reference to Fig. 4, a kind of flow chart of the reattachment method of user equipment in the embodiment of the present invention is shown.
Step 100, local bearer context letter is configured before sending default bearing and establishing request message to PGW in SGW
Breath.
Local bearer context information is first configured in SGW, after the local bearer context information of configuration, is sent to PGW
Create Session Request message.
Step 102, SGW receives the default bearing that PGW is sent and establishes after response message, and the local being configured is held
Contextual information is carried to be updated.
After the local bearer context information of SGW configurations, Create Session Request message, PGW are sent to PGW
After the local bearer context information of configuration, Create Session Requeste message is sent to SGW, SGW is received
After Create Session Requeste message, the local bearer context information being configured is updated.
Step 104, SGW sends default bearing after being updated to the local bearer context information being configured
Response message is established to MME, to complete the reattachment of UE by MME.
MME is sent to SGW before the SGW is to the Create Session Requeste message that MME is sent
The response message of Create Session Request message.
After MME receives Create Session Requeste message, MME is included by eNB (base station) transmissions
The Initial Context Setup Request message of Attach Accept message is to UE, and during this period, eNB is returned to MME
Return Initial Context Setup Response message.UE receives the Initial for including Attach Accept message
After Context Setup Request message, Attach Complete message is sent to MME, the reattachment of UE is completed.
In conclusion the technical solution of the embodiment of the present invention, SGW send default bearing establish request message to PGW it
Before, local bearer context information is configured, after the default bearing for receiving PGW transmissions establishes response message, to having matched
The local bearer context information put is updated, i.e. SGW is configured bearer context information and bearer context information is configured in PGW
Before, it if there is downlink business exists, after data packet reaches SGW by PGW tunnels, can be configured according to SGW
Bearer context information performs downlink business, fundamentally solves the use that SGW service surfaces trigger due to local tunnel is not present
Family extremely release flow, ensure in the case that keep high-speed downloads, user's reattachment can still be normally carried out business forwarding and
Extremely it is not discharged.
Embodiment two
A kind of reattachment method of user equipment provided in an embodiment of the present invention is discussed in detail.
With reference to Fig. 5, a kind of flow chart of the reattachment method of user equipment in the embodiment of the present invention is shown.
Step 200, local bearer context letter is configured before sending default bearing and establishing request message to PGW in SGW
Breath.
Local bearer context information is first configured in SGW, after the local bearer context information of configuration, is sent to PGW
Create Session Request message.
Preferably, the step 200 can include：
Sub-step 2001, the SGW establish local terminal bearing tunnel and opposite end bearing tunnel.
Specifically, SSPS in the SGW network elements sends the SGW carryings and establishes request message to the UPPS of the SGW,
The UPPS of the SGW is notified to establish S1u interfaces and/or Ss58 interface local terminal bearing tunnels.
Wherein, the local terminal bearing tunnel includes local terminal bearing tunnel information；No pair in the opposite end bearing tunnel
Hold bearing tunnel information.
Sub-step 2002, the SGW pass through the local terminal bearing tunnel and the local carrying of opposite end bearing tunnel configuration
Contextual information.
Specifically, the SSPS of the SGW receives the SGW carryings sent from the PSPS in the PGW network elements and establishes to respond and disappears
Breath, to establish the local terminal bearing tunnel completed and the local bearer context of opposite end bearing tunnel configuration by the UPPS of the SGW
Information.
Step 202, SGW receives the default bearing that PGW is sent and establishes after response message, and the local being configured is held
Contextual information is carried to be updated.
After the local bearer context information of SGW configurations, Create Session Request message, PGW are sent to PGW
After the local bearer context information of configuration, Create Session Requeste message is sent to SGW, SGW is received
After Create Session Requeste message, the local bearer context information being configured is updated.
Preferably, the step 202 can be：
The SSPS of the SGW sends SGW bearer updates request message to the UPPS of the SGW, notifies the UPPS of the SGW
The local bearer context information being configured is updated.
Wherein, the SGW bearer updates request message can include peer IP address and Tunnel End Point Identifier etc..
That is, the SSPS of the SGW is updated the opposite end bearing tunnel having built up by the UPPS of the SGW, more
The every terms of information that newly will not include when establishing before.
Step 204, SGW sends default bearing after being updated to the local bearer context information being configured
Response message is established to MME, to complete the reattachment of UE by MME.
MME is sent to SGW before the SGW is to the Create Session Requeste message that MME is sent
The response message of Create Session Request message.
After MME receives Create Session Requeste message, MME is included by eNB (base station) transmissions
The Initial Context Setup Request message of Attach Accept message is to UE, and during this period, eNB is returned to MME
Return Initial Context Setup Response message.UE receives the Initial for including Attach Accept message
After Context Setup Request message, Attach Complete message is sent to MME, the reattachment of UE is completed.
In conclusion the technical solution of the embodiment of the present invention, SGW send default bearing establish request message to PGW it
Before, local bearer context information is configured, after the default bearing for receiving PGW transmissions establishes response message, to having matched
The local bearer context information put is updated, i.e. SGW is configured bearer context information and bearer context information is configured in PGW
Before, it if there is downlink business exists, after data packet reaches SGW by PGW tunnels, can be configured according to SGW
Bearer context information performs downlink business, fundamentally solves the use that SGW service surfaces trigger due to local tunnel is not present
Family extremely release flow, ensure in the case that keep high-speed downloads, user's reattachment can still be normally carried out business forwarding and
Extremely it is not discharged.
Embodiment three
A kind of reattachment system of user equipment provided in an embodiment of the present invention is discussed in detail.
With reference to Fig. 6, a kind of structure chart of the reattachment system of user equipment in the embodiment of the present invention is shown.
The system can include：UE, SGW, PGW and MME, wherein, SGW includes：
Local carrying configuration module 300, local bearer update module 302, reattachment module 304.
Be discussed in detail separately below each module function and each module between relationship.
Local carrying configuration module 300 establishes request message to grouped data company for sending default bearing in the SGW
Before meeting gateway PGW, local bearer context information is configured.
Local bearer update module 302, the default bearing for receiving the PGW transmissions in the SGW establish response
After information, the local bearer context information being configured is updated.
Reattachment module 304, for being updated it to the local bearer context information being configured in the SGW
Afterwards, it sends default bearing and establishes response message to mobile management entity MME, to complete the weight of user equipment (UE) by the MME
Attachment.
In conclusion the technical solution of the embodiment of the present invention, SGW send default bearing establish request message to PGW it
Before, local bearer context information is configured, after the default bearing for receiving PGW transmissions establishes response message, to having matched
The local bearer context information put is updated, i.e. SGW is configured bearer context information and bearer context information is configured in PGW
Before, it if there is downlink business exists, after data packet reaches SGW by PGW tunnels, can be configured according to SGW
Bearer context information performs downlink business, fundamentally solves the use that SGW service surfaces trigger due to local tunnel is not present
Family extremely release flow, ensure in the case that keep high-speed downloads, user's reattachment can still be normally carried out business forwarding and
Extremely it is not discharged.
Example IV
A kind of reattachment system of user equipment provided in an embodiment of the present invention is discussed in detail.
With reference to Fig. 7, a kind of structure chart of the reattachment system of user equipment in the embodiment of the present invention is shown.
The system can include：UE, SGW, PGW and MME, wherein, SGW includes：
Local carrying configuration module 400, local bearer update module 402, reattachment module 404.
Wherein, the local carrying configuration module 400 can include：Bearing tunnel setting up submodule 4001, it is local to carry
Submodule 4002 is configured.
The relationship between each module, the function of each submodule and each module, each submodule is discussed in detail separately below.
Local carrying configuration module 400 establishes request message to grouped data company for sending default bearing in the SGW
Before meeting gateway PGW, local bearer context information is configured.
Preferably, the local carrying configuration module 400 can include：
Bearing tunnel setting up submodule 4001, for establishing local terminal bearing tunnel and opposite end bearing tunnel.
Wherein, the local terminal bearing tunnel includes local terminal bearing tunnel information；No pair in the opposite end bearing tunnel
Hold bearing tunnel information.
Preferably, the bearing tunnel setting up submodule 4001 notifies the UPPS of the SGW using the SSPS in SGW network elements
Establish S1u interfaces and/or Ss58 interface local terminal bearing tunnels.
Local carrying configuration submodule 4002, for passing through the local terminal bearing tunnel and opposite end bearing tunnel configuration
Local bearer context information.
Preferably, the local carrying configuration submodule 4002 is received using the SSPS of the SGW from the PGW network elements
PSPS send service gateway bearing establish response message, with pass through the UPPS of the SGW establish complete local terminal carry tunnel
The local bearer context information of road configuration.
Local bearer update module 402, the default bearing for receiving the PGW transmissions in the SGW establish response
After information, the local bearer context information being configured is updated.
Preferably, the local bearer update module 402 sends service gateway bearing update using the SSPS of the SGW and asks
Message is sought to the UPPS of the SGW, the UPPS of the SGW is notified to carry out the more local bearer context information being configured
Newly.
Wherein, the service gateway bearing update request message includes peer IP address and Tunnel End Point Identifier.
Reattachment module 404, for being updated it to the local bearer context information being configured in the SGW
Afterwards, it sends default bearing and establishes response message to mobile management entity MME, to complete the weight of user equipment (UE) by the MME
Attachment.
In conclusion the technical solution of the embodiment of the present invention, SGW send default bearing establish request message to PGW it
Before, local bearer context information is configured, after the default bearing for receiving PGW transmissions establishes response message, to having matched
The local bearer context information put is updated, i.e. SGW is configured bearer context information and bearer context information is configured in PGW
Before, it if there is downlink business exists, after data packet reaches SGW by PGW tunnels, can be configured according to SGW
Bearer context information performs downlink business, fundamentally solves the use that SGW service surfaces trigger due to local tunnel is not present
Family extremely release flow, ensure in the case that keep high-speed downloads, user's reattachment can still be normally carried out business forwarding and
Extremely it is not discharged.
For system embodiment, since it is basicly similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
A kind of reattachment method and system of the user equipment provided above the embodiment of the present invention, has carried out detailed Jie
It continues, specific case used herein is expounded the principle of the present invention and embodiment, and the explanation of above example is only
It is the method and its core concept for being used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to this hair
Bright thought, there will be changes in specific embodiments and applications, in conclusion the content of the present specification should not manage
It solves as limitation of the present invention.
Claims (8)
1. a kind of reattachment method of user equipment, which is characterized in that including：
Before sending default bearing and establishing request message to grouped data connection gateway PGW, configuration is local to hold gateway SGW
Contextual information is carried, local terminal bearing tunnel and opposite end bearing tunnel are established including the SGW；The SGW passes through described
Hold bearing tunnel and the opposite end bearing tunnel configuration local bearer context information；Wherein, the local terminal bearing tunnel
Include local terminal bearing tunnel information；There is no opposite end bearing tunnel information in the opposite end bearing tunnel；
The SGW receives the default bearing that the PGW is sent and establishes after response message, and the local being configured is carried
Context information is updated；
The SGW sends default bearing and establishes response after being updated to the local bearer context information being configured
Information is to mobile management entity MME, to complete the reattachment of user equipment (UE) by the MME.
2. according to the method described in claim 1, it is characterized in that, the SGW establishes local terminal bearing tunnel, including：
Signaling processing subsystem SSPS in the SGW network elements notifies the user plane processing subsystem UPPS of the SGW to establish S1-
U interface and/or S5/S8 interface local terminal bearing tunnels.
3. according to the method described in claim 2, it is characterized in that, the SGW passes through the local terminal bearing tunnel and described right
The bearing tunnel configuration local bearer context information is held, including：
The SSPS of the SGW is received to be built from the service gateway bearings sent of the signaling processing subsystem PSPS in the PGW network elements
Vertical response message is locally held with establishing the local terminal bearing tunnel of completion and the configuration of opposite end bearing tunnel by the UPPS of the SGW
Carry contextual information.
4. according to the method described in claim 2, it is characterized in that, the SGW believes the local bearer context being configured
Breath is updated, including：
The SSPS of the SGW sends service gateway bearing and updates request message to the UPPS of the SGW, notifies the SGW's
UPPS is updated the local bearer context information being configured；
Wherein, the service gateway bearing update request message includes peer IP address and Tunnel End Point Identifier.
5. a kind of reattachment system of user equipment, which is characterized in that including：User equipment (UE), gateway SGW, packet count
According to connection gateway PGW and mobile management entity MME, the SGW, including：
Local carrying configuration module establishes request message to grouped data connection gateway for sending default bearing in the SGW
Before PGW, local bearer context information is configured, including bearing tunnel setting up submodule, for establishing local terminal carrying tunnel
Road and opposite end bearing tunnel；Local carrying configuration submodule, for passing through the local terminal bearing tunnel and opposite end carrying tunnel
The local bearer context information of road configuration；Wherein, the local terminal bearing tunnel includes local terminal bearing tunnel information；The opposite end
There is no opposite end bearing tunnel information in bearing tunnel；
Local bearer update module, for the SGW receive the default bearing that the PGW sends establish response message it
Afterwards, the local bearer context information being configured is updated；
Reattachment module, for after being updated to the local bearer context information being configured, being sent in the SGW
Default bearing establishes response message to mobile management entity MME, to complete the reattachment of user equipment (UE) by the MME.
6. system according to claim 5, which is characterized in that the bearing tunnel setting up submodule utilizes the SGW nets
Signaling processing subsystem SSPS in member notifies the user plane processing subsystem UPPS of the SGW to establish S1-u interfaces and/or S5/
S8 interface local terminal bearing tunnels.
7. system according to claim 6, which is characterized in that the local carrying configuration submodule utilizes the SGW's
SSPS is received from the service gateway bearings sent of the signaling processing subsystem PSPS in the PGW network elements and is established response message, with
The local terminal bearing tunnel completed and the local bearer context information of opposite end bearing tunnel configuration are established by the UPPS of the SGW.
8. system according to claim 6, which is characterized in that the local bearer update module utilizes the SGW's
SSPS sends service gateway bearing and updates request message to the UPPS of the SGW, notifies the UPPS of the SGW to being configured
Local bearer context information is updated；
Wherein, the service gateway bearing update request message includes peer IP address and Tunnel End Point Identifier.
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| CN102333386A (en) * | 2011-10-20 | 2012-01-25 | 大唐移动通信设备有限公司 | Terminal attachment method and equipment |
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| Title |
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| 3GPP.Technical Specification Group Services and System Aspects * |
| General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network(E-UTRAN) access.《3GPP TS 23.401 V11.11.0》.2014,正文第5.10.2节. * |
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