CN101730075B - Method for forwarding data in switching process - Google Patents
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- CN101730075B CN101730075B CN 200910146753 CN200910146753A CN101730075B CN 101730075 B CN101730075 B CN 101730075B CN 200910146753 CN200910146753 CN 200910146753 CN 200910146753 A CN200910146753 A CN 200910146753A CN 101730075 B CN101730075 B CN 101730075B
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Abstract
The invention discloses a method for forwarding data in a switching process, which comprises that: in the switching process of UE, a target mobility management network element or a source mobility management network element selects an SGW for forwarding the data, creates a data forwarding tunnel with the SGW, and informs a source wireless access network element of information of the data forwarding tunnel of the SGW; and the source wireless access network element forwards the user data of the UE to a target wireless access network element through the SGW. The method renders the selection of the data forwarding SGW to be more flexible and convenient for network deployment and the flow of creating the data forwarding tunnel to be simpler and more reasonable, and only needs to create data forwarding tunnel resources on one SGW so as to save the overhead of the data forwarding resources and improve the data forwarding efficiency.
Description
Technical field
The present invention relates to packet domain evolution territory in the mobile communcations system, relate in particular to a kind of method that going forward side by side in the data forwarding tunnel changes before the line data of in handoff procedure, setting up.
Background technology
3GPP (3rd Generation Partnership Project, third generation partner program) to the project of mobile wireless network of future generation System Architecture Evolution (System Architecture Evolution is called for short SAE).The framework of SAE has wherein comprised following network element as shown in Figure 1:
ENodeB (Evolved NodeB, the base station of evolution): for the access of terminal provides Radio Resource;
RNC (Radio Network Controller, radio network controller): be traditional 3G wireless access network element;
BSC (Base Station Controller, base station controller): be traditional 2G wireless access network element;
HSS (Home Subscriber Server, home subscriber server): be used for the permanent storage user contracting data;
PDN (Packet Data Network, Packet Data Network): for the user provides professional network;
MME (Mobility Management Entity, Mobility Management Entity): be the chain of command functional entity, the server of interim storage user data, be in charge of and store UE (User Equipment, subscriber equipment) context (such as UE/ user ID, mobility management states, user security parameters etc.), for UE distributes temporary mark, when UE quarters at this tracing area or this network, be responsible for this UE is carried out authentication; Handle all non-access layer informations between MME and the UE; Triggering is in the paging of SAE;
Serving GW (Serving Gateway, gateway, abbreviate SGW as): this gateway is a user entity, being responsible for the user face data route handles, termination is in the downlink data of the UE of idle condition, and SAE carrying (bearer) context of management and storage UE is such as IP bearer service parameter and network internal routing iinformation etc., be the anchor point of 3GPP internal system user face, a UE can only have a Serving GW a moment;
PDN GW (packet data network gateway abbreviates PGW as): be responsible for the gateway that UE inserts PDN, distributing user IP address is the mobility anchor point of 3GPP and non-3GPP connecting system simultaneously.UE can insert a plurality of PDN GW at synchronization;
Physically, Serving GW and PDN GW may unify.
PCRF (Policy and Charging Rule Functionality, strategy and total are taken regulation function entity): this functional entity mainly produces Qos (the Quality of Service of control user data delivery according to the configuration information of business information and user signing contract information and operator, service quality) rule and charging regulation, this functional entity also can be controlled foundation and the release of carrying in the Access Network.
SGSN (Serving GPRS Support Node, service universal grouping wireless business supporting node) is responsible for UE when 2/3G inserts, the network element of mobile management.
Wherein, MME and SGSN are referred to as mobile management network element; ENodeB, RNC and BSC are referred to as wireless access network element.
The SAE carrying refers to UE to the passage of PGW, and UE and PDN can utilize this passage to transmit the uplink and downlink data of specific Qos.The SAE carrying is in case after setting up, to preserve the relevant information of this carrying at each network element between from UE to PDN, comprise UE, eNodeB, MME, SGW, PGW, and when the relevant information of carrying takes place to revise, need the notice related network elements, to keep the consistency of bearer related information between each network element.
After UE is linked into the SAE system, because user's mobility, may take place between eNodeB or the handoff procedure of interdepartmental system (between eNodeB and RNC or between eNodeB and BSC), change owing to the wireless side network element this moment, the carrying relevant with old wireless side network element is deleted, rebuilds carrying at new wireless side network element; In order to guarantee in the handoff procedure that can not lose user data, 3GPP has defined the data forwarding process, data forwarding is divided into direct preceding the commentaries on classics and preceding commentaries on classics indirectly.Change referring between two wireless access network element eNodeB directly, or have interface to exist between eNodeB and RNC, the data of source network element can directly be forwarded to target network element.Refer to can not directly transmit between wireless access network element data and change indirectly, and need be by core network element: mobile management network element (MME or SGSN), SGW carry out data and transmit.Typical SGW change indirectly before the flow process of changeing as shown in Figure 2:
Step 101, in the UE handoff procedure, set up radio bearer between target mobility management network element (being target MME or target SGSN) and the Target Wireless access network element (being target eNode B or Target RNC or target BS C), the Target Wireless access network element passes to target mobility management network element with the data forwarding tunnel information of oneself and the sign of described UE;
The data forwarding tunnel is to transmit the data transmission channel of setting up for data, and tunnel information comprises the IP address information of Tunnel End Point Identifier TEID and network element;
Step 102, target mobility management network element is changeed tunneled requests message before target SGW network element sends the establishment indirect data, carry the data forwarding tunnel information of Target Wireless access network element in the message;
Step 103, target SGW changes the tunnel response before target mobility management network element is responded the establishment indirect data, carry the data forwarding tunnel information of target SGW in the message;
Step 104, target mobility management network element is changeed relocation response message before source mobile management network element (being source MME or source target SGSN) sends, carry the data forwarding tunnel information of target SGW in the message;
Step 105, the source mobile management network element changes tunneled requests message before source SGW sends the establishment indirect data, tell source SGW with the data forwarding tunnel information of target SGW in this message;
Step 106, source SGW changes the tunnel response before the source mobile management network element is responded the establishment indirect data, carry the data forwarding tunnel information of source SGW in the message;
Step 107, the source mobile management network element sends switching command message to source wireless access network element (being source eNodeB or source RNC or source BSC), carries the data forwarding tunnel information of source SGW in the message;
Step 108, source wireless access network element are changeed the user data of UE before the SGW of source according to the data forwarding tunnel information of source SGW;
Step 109, source SGW changes the user data of UE before the target SGW according to the data forwarding tunnel information of target SGW;
Step 110, target SGW changes the user data of UE before the Target Wireless access network element according to the data forwarding tunnel information of Target Wireless access network element.
In above-mentioned steps 102～107, every message all can be transmitted the sign of UE; Be the transmission of every message, transmitting terminal and receiving terminal can determine it is which UE according to the sign of UE.
In the above-mentioned handoff procedure, between source wireless access network element and the source SGW, between source SGW and the target SGW and set up the data forwarding tunnel between the Target Wireless access network element of target SGW source, carry out data forwarding by this tunnel respectively.Data forwarding to source SGW, through target SGW, arrives the Target Wireless access network element from the source wireless access network element again, namely under the situation that SGW changes, and need be through twice transfer.
There is following problem in said method:
1. when SGW changes, change tunnel information before need on source SGW, target SGW, all setting up, and data forwarding need take two network element resources of source SGW, target SGW.
2. the SGW that is used for the data forwarding must be the SGW (source SGW or target SGW) that UE inserts, this just requires all SGW all must support the preceding rotating function of data, and dispose dumbly, mobile management network element can not be selected suitable SGW to be used for data according to the network planning to transmit.
Summary of the invention
The technical problem to be solved in the present invention is exactly the method that proposes data forwarding in a kind of handoff procedure, solves above-mentioned defective in the prior art, can select the SGW of data forwarding flexibly, need not to take more network element resources.
In order to solve the problems of the technologies described above, the invention provides the method for data forwarding in a kind of handoff procedure, comprising:
In the handoff procedure of user equipment (UE), target mobility management network element selects to be used for the gateway SGW of data forwarding, creates the data forwarding tunnel with described SGW, and the data forwarding tunnel information of described SGW is informed the source wireless access network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Further, said method specifically comprises:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, select to be used for the SGW of data forwarding, the data forwarding tunnel information of described Target Wireless access network element is informed described SGW, create the data forwarding tunnel with described SGW, know the data forwarding tunnel information of described SGW;
Described target mobility management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW through the source mobile management network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Further, said method also can have following characteristics:
Described mobile management network element specifically refers to: Mobility Management Entity MME or service universal grouping wireless business supporting node SGSN;
Described wireless access network element specifically refers to: the base station eNodeB of evolution or radio network controller (RNC) or base station controller BSC.
Further, said method also can have following characteristics:
Described target mobility management network element is used for the SGW of data forwarding according to local configuration information or network design information, network load Information Selection.
Further, said method also can have following characteristics:
The data forwarding tunnel information of described SGW comprises the endpoint of a tunnel information of SGW and the IP address information of SGW.
Further, said method also can have following characteristics:
The data forwarding tunnel information of described Target Wireless access network element comprises the endpoint of a tunnel information of Target Wireless access network element and the IP address information of Target Wireless access network element.
Further, said method also can have following characteristics:
Described target mobility management network element is selected to be used for also to obtain the sign of described UE before the SGW of data forwarding;
When described target mobility management network element is informed described SGW with the data forwarding tunnel information of described Target Wireless access network element, also the sign of described UE is informed described SGW;
SGW is that described UE creates the data forwarding tunnel information, preserves the data forwarding tunnel information of Target Wireless access network element, and the data forwarding tunnel information of described SGW and the sign of UE are sent described target mobility management network element.
Further, said method also can have following characteristics:
Described SGW is that described UE creates the data forwarding tunnel information, preserve after the data forwarding tunnel information of Target Wireless access network element, set up the sign of described UE, the data forwarding tunnel information of Target Wireless access network element and the corresponding relation of the data forwarding tunnel information that the described UE of SGW creates.
In order to solve the problems of the technologies described above, the invention provides the method for data forwarding in a kind of handoff procedure, comprising:
In the handoff procedure of UE, the source mobile management network element selects to be used for the SGW of data forwarding, creates the data forwarding tunnel with described SGW, and the data forwarding tunnel information of described SGW is informed the source wireless access network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Further, said method also can have following characteristics:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, the data forwarding tunnel information of described Target Wireless access network element is transmitted to the source mobile management network element;
The SGW that the source mobile management network element selects to be used for data forwarding informs described SGW with the data forwarding tunnel information of described Target Wireless access network element, creates the data forwarding tunnel with described SGW, knows the data forwarding tunnel information of described SGW;
Described source mobile management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Further, said method also can have following characteristics:
Described mobile management network element specifically refers to: MME or SGSN;
Described wireless access network element specifically refers to: eNodeB or RNC or BSC.
Further, said method also can have following characteristics:
Described source mobile management network element is used for the SGW of data forwarding according to local configuration information or network design information, network load Information Selection.
Further, said method also can have following characteristics:
The data forwarding tunnel information of described SGW comprises the endpoint of a tunnel information of SGW and the IP address information of SGW.
Further, said method also can have following characteristics:
The data forwarding tunnel information of described Target Wireless access network element comprises the endpoint of a tunnel information of Target Wireless access network element and the IP address information of Target Wireless access network element.
Further, said method also can have following characteristics:
Described source mobile management network element is selected to be used for also to receive the sign of the described UE of described target mobility management network element transmission before the SGW of data forwarding;
When described source mobile management network element is informed described SGW with the data forwarding tunnel information of described Target Wireless access network element, also the sign of described UE is informed described SGW;
SGW is that described UE creates the data forwarding tunnel information, preserves the data forwarding tunnel information of Target Wireless access network element, and the data forwarding tunnel information of described SGW and the sign of UE are sent described source mobile management network element.
Further, said method also can have following characteristics:
Described SGW is that described UE creates the data forwarding tunnel information, preserve after the data forwarding tunnel information of Target Wireless access network element, set up the data forwarding tunnel information of sign, Target Wireless access network element of described UE and SGW and be the corresponding relation of the data forwarding tunnel information that described UE creates.
The present invention selects a data forwarding SGW by source mobile management network element or target mobility management network element, and by the data forwarding of this SGW realization source wireless access network element to the Target Wireless access network element, thereby make the selection of data forwarding SGW flexible more, make things convenient for network design, the flow process that the data forwarding tunnel is set up simplifies more, rationally, and only need set up the data forwarding tunnel resource at a SGW, save the data forwarding resource overhead, improved the efficient of data forwarding.
Description of drawings
Fig. 1 is SAE Organization Chart in the prior art;
Fig. 2 creates the schematic diagram that changes the tunnel and carry out data forwarding before the indirect data in the handoff procedure in the prior art;
Fig. 3 changes the schematic diagram that SGW sets up the data forwarding tunnel before being selected by target mobility management network element of the embodiment of the invention;
Fig. 4 changes the schematic diagram that SGW sets up the data forwarding tunnel before being selected by the source mobile management network element of the embodiment of the invention.
Embodiment
Core concept of the present invention is: the SGW that is selected to be used for data forwarding by mobile management network element (target mobility management network element or source mobile management network element).
Wherein, mobile management network element specifically refers to: MME or SGSN.
Particularly, in the handoff procedure of UE, target mobility management network element or source mobile management network element select to be used for the SGW of data forwarding, create the data forwarding tunnel with described SGW, and the data forwarding tunnel information of described SGW is informed the source wireless access network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Wherein, target mobility management network element or source mobile management network element can select to be used for the SGW of data forwarding according to situations such as local configuration information or network design information, network load information.The data forwarding SGW of this selection can be same as source SGW or target SGW, also can be different from source SGW or target SGW.
Wireless access network element specifically refers to: eNodeB or RNC or BSC.
When being selected to be used for the SGW of data forwarding by target mobility management network element, specifically comprise:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, select to be used for the SGW of data forwarding, the data forwarding tunnel information of described Target Wireless access network element is informed described SGW, create the data forwarding tunnel with described SGW, know the data forwarding tunnel information of described SGW;
Described target mobility management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW through the source mobile management network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
When being selected to be used for the SGW of data forwarding by the source mobile management network element, specifically comprise:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, the data forwarding tunnel information of described Target Wireless access network element is transmitted to the source mobile management network element;
The SGW that the source mobile management network element selects to be used for data forwarding informs described SGW with the data forwarding tunnel information of described Target Wireless access network element, creates the data forwarding tunnel with described SGW, knows the data forwarding tunnel information of described SGW;
Described source mobile management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
Described data forwarding tunnel information comprises endpoint of a tunnel information TEID (Tunnel EndpointIdentifier) and network element IP address information.The data forwarding tunnel information of described Target Wireless access network element comprises the IP address information of TEID and the Target Wireless access network element of Target Wireless access network element, and the data forwarding tunnel information of described SGW comprises the IP address information of TEID and the SGW of SGW.
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
Embodiment one: the SGW that is selected to be used for data forwarding by target mobility management network element
As shown in Figure 3, be the schematic diagram that changes SGW before being selected by target mobility management network element in the handoff procedure of UE, comprise the steps:
Step 201, in the handoff procedure of UE, target mobility management network element gets access to the data forwarding tunnel information of Target Wireless access network element and the sign of described UE;
Wherein, the data forwarding tunnel information of Target Wireless access network element comprises the IP address information of TEID and the Target Wireless access network element of Target Wireless access network element;
Step 202, target mobility management network element select a SGW to be used for data forwarding;
Target mobility management network element can be according to configuration information or the network planning or SGW of network load Information Selection, and this SGW supports the preceding rotating function of data; The SGW of this selection can be same as source SGW or target SGW, also can be different from source, target SGW;
Step 203, target mobility management network element is changeed tunneled requests message before indirect data is created in the SGW transmission of this selection, carry the data forwarding tunnel information of Target Wireless access network element and the sign of UE in the message;
Step 204, SGW is that described UE creates the data forwarding tunnel information, preserve the data forwarding tunnel information of Target Wireless access network element, and before target mobility management network element is returned the establishment indirect data, change tunnel response message, carry the data forwarding tunnel information of SGW and the sign of UE in the message;
Wherein the data forwarding tunnel information of SGW comprises the IP address information of TEID and the SGW of SGW;
SGW sets up the corresponding relation of the data forwarding tunnel information that the data forwarding tunnel information of Target Wireless access network element of the sign of this UE and this UE and SGW create for this UE.
Step 205, target mobility management network element is changeed relocation response message before the source mobile management network element sends, carry the data forwarding tunnel information of SGW and the sign of described UE in the message;
Step 206, the source mobile management network element sends switching command message to the source wireless access network element, carries the data forwarding tunnel information of SGW and the sign of described UE in the message;
Step 207, source wireless access network element send the user data of described UE to SGW by the data forwarding tunnel information of SGW;
Step 208, SGW sends the user data of described UE according to the data forwarding tunnel information of the Target Wireless access network element of its record to the Target Wireless access network element.
Embodiment two: the SGW that is selected to be used for data forwarding by the source mobile management network element
As shown in Figure 4, be the schematic diagram that changes SGW before being selected by the source mobile management network element in the handoff procedure of UE, comprise the steps:
Step 301, in the handoff procedure of UE, target mobility management network element gets access to the data forwarding tunnel information of Target Wireless access network element and the sign of described UE;
Wherein, the data forwarding tunnel information of Target Wireless access network element comprises the IP address information of TEID and the Target Wireless access network element of Target Wireless access network element;
Step 302, target mobility management network element is changeed relocation response message before the source mobile management network element sends, carry the data forwarding tunnel information of Target Wireless access network element and the sign of described UE in the message;
Step 303, source mobile management network element select a SGW to be used for data forwarding;
The source mobile management network element can be according to configuration information or the network planning or SGW of network load Information Selection, and this SGW supports the preceding rotating function of data; The SGW of this selection can be same as source SGW or target SGW, also can be different from source, target SGW;
Step 304, the source mobile management network element changes tunneled requests message before indirect data is created in the SGW transmission of this selection, remove in the message and carry the data forwarding tunnel information of Target Wireless access network element and the sign of described UE;
Step 305, SGW is the preceding tunnel information that changes for this UE creates, preserve the data forwarding tunnel information of Target Wireless access network element, and before the source mobile management network element returns the establishment indirect data, change tunnel response message, carry the data forwarding tunnel information of SGW and the sign of described UE in the message;
Wherein the data forwarding tunnel information of SGW comprises the IP address information of TEID and the SGW of SGW;
SGW sets up the corresponding relation of the preceding commentaries on classics tunnel information that the data forwarding tunnel information of Target Wireless access network element of the sign of this UE and this UE and SGW create for this UE;
Step 306, the source mobile management network element sends switching command message to the source wireless access network element, carries the data forwarding tunnel information of SGW and the sign of described UE in the message;
Step 307, source wireless access network element send the user data of described UE to SGW by the data forwarding tunnel information of SGW;
Step 308, SGW sends the user data of described UE according to the data forwarding tunnel information of the Target Wireless access network element of its record to the Target Wireless access network element.
The present invention also can have other various embodiments, and for example switching when mobile management network element does not change, the switching when SGW does not change, UE are from switching of interdepartmental system etc.Under the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art are when making various corresponding changes and distortion according to the present invention, and these change and be out of shape the protection range that all should belong to the appended claim of the present invention accordingly.
Claims (16)
1. the method for data forwarding in the handoff procedure comprises:
In the handoff procedure of user equipment (UE), after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, select to be used for the gateway SGW of data forwarding, the data forwarding tunnel information of described Target Wireless access network element is informed described SGW, create the data forwarding tunnel with described SGW, know the data forwarding tunnel information of described SGW; And the data forwarding tunnel information of described SGW informed the source wireless access network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
2. the method for claim 1 is characterized in that, described method specifically comprises:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, select to be used for the SGW of data forwarding, the data forwarding tunnel information of described Target Wireless access network element is informed described SGW, create the data forwarding tunnel with described SGW, know the data forwarding tunnel information of described SGW;
Described target mobility management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW through the source mobile management network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
3. method as claimed in claim 1 or 2 is characterized in that,
Described mobile management network element specifically refers to: Mobility Management Entity MME or service universal grouping wireless business supporting node SGSN;
Described wireless access network element specifically refers to: the base station eNodeB of evolution or radio network controller (RNC) or base station controller BSC.
4. method as claimed in claim 1 or 2 is characterized in that,
Described target mobility management network element is used for the SGW of data forwarding according to local configuration information or network design information, network load Information Selection.
5. method as claimed in claim 1 or 2 is characterized in that,
The data forwarding tunnel information of described SGW comprises the endpoint of a tunnel information of SGW and the IP address information of SGW.
6. method as claimed in claim 2 is characterized in that,
The data forwarding tunnel information of described Target Wireless access network element comprises the endpoint of a tunnel information of Target Wireless access network element and the IP address information of Target Wireless access network element.
7. method as claimed in claim 2 is characterized in that,
Described target mobility management network element is selected to be used for also to obtain the sign of described UE before the SGW of data forwarding;
When described target mobility management network element is informed described SGW with the data forwarding tunnel information of described Target Wireless access network element, also the sign of described UE is informed described SGW;
SGW is that described UE creates the data forwarding tunnel information, preserves the data forwarding tunnel information of Target Wireless access network element, and the data forwarding tunnel information of described SGW and the sign of UE are sent described target mobility management network element.
8. method as claimed in claim 7 is characterized in that,
Described SGW is that described UE creates the data forwarding tunnel information, preserve after the data forwarding tunnel information of Target Wireless access network element, set up the sign of described UE, the data forwarding tunnel information of Target Wireless access network element and the corresponding relation of the data forwarding tunnel information that the described UE of SGW creates.
9. the method for data forwarding in the handoff procedure comprises:
In the handoff procedure of UE, the source mobile management network element selects to be used for the SGW of data forwarding, the data forwarding tunnel information of Target Wireless access network element is informed described SGW, create the data forwarding tunnel with described SGW, and the data forwarding tunnel information of described SGW is informed the source wireless access network element;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
10. method as claimed in claim 9 is characterized in that, described method specifically comprises:
In the handoff procedure of UE, after target mobility management network element is obtained the data forwarding tunnel information of Target Wireless access network element, the data forwarding tunnel information of described Target Wireless access network element is transmitted to the source mobile management network element;
The SGW that the source mobile management network element selects to be used for data forwarding informs described SGW with the data forwarding tunnel information of described Target Wireless access network element, creates the data forwarding tunnel with described SGW, knows the data forwarding tunnel information of described SGW;
Described source mobile management network element is transmitted to the source wireless access network element with the data forwarding tunnel information of described SGW;
Described source wireless access network element is transmitted to the Target Wireless access network element with the user data of described UE through described SGW.
11. as claim 9 or 10 described methods, it is characterized in that,
Described mobile management network element specifically refers to: MME or SGSN;
Described wireless access network element specifically refers to: eNodeB or RNC or BSC.
12. as claim 9 or 10 described methods, it is characterized in that,
Described source mobile management network element is used for the SGW of data forwarding according to local configuration information or network design information, network load Information Selection.
13. as claim 9 or 10 described methods, it is characterized in that,
The data forwarding tunnel information of described SGW comprises the endpoint of a tunnel information of SGW and the IP address information of SGW.
14. method as claimed in claim 10 is characterized in that,
The data forwarding tunnel information of described Target Wireless access network element comprises the endpoint of a tunnel information of Target Wireless access network element and the IP address information of Target Wireless access network element.
15. method as claimed in claim 10 is characterized in that,
Described source mobile management network element is selected to be used for also to receive the sign of the described UE of described target mobility management network element transmission before the SGW of data forwarding;
When described source mobile management network element is informed described SGW with the data forwarding tunnel information of described Target Wireless access network element, also the sign of described UE is informed described SGW;
SGW is that described UE creates the data forwarding tunnel information, preserves the data forwarding tunnel information of Target Wireless access network element, and the data forwarding tunnel information of described SGW and the sign of UE are sent described source mobile management network element.
16. method as claimed in claim 15 is characterized in that,
Described SGW is that described UE creates the data forwarding tunnel information, preserve after the data forwarding tunnel information of Target Wireless access network element, set up the data forwarding tunnel information of sign, Target Wireless access network element of described UE and SGW and be the corresponding relation of the data forwarding tunnel information that described UE creates.
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| CN102076054A (en) * | 2011-02-18 | 2011-05-25 | 电信科学技术研究院 | Direct forwarding tunnel setup and using method, system and equipment |
| CN103262610B (en) * | 2011-12-15 | 2017-04-19 | 华为技术有限公司 | Handover processing method, device and system |
| BR112019008833A2 (en) * | 2016-11-04 | 2019-07-09 | Huawei Tech Co Ltd | data packet processing method, control plan network element, and user plan network element |
| KR102329925B1 (en) * | 2017-08-14 | 2021-11-23 | 삼성전자 주식회사 | A method and apparatus to support data synchronization for 4G/5G dual registered UE |
| CN109803329B (en) | 2017-11-16 | 2021-01-22 | 电信科学技术研究院 | Data forwarding tunnel determination method, access and mobility management equipment and base station |
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| CN101272318A (en) * | 2007-03-20 | 2008-09-24 | 中兴通讯股份有限公司 | Method for preventing false resource release in tracing section updating or switching course |
| CN101365159A (en) * | 2007-08-08 | 2009-02-11 | 华为技术有限公司 | Bearing identification processing method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101272318A (en) * | 2007-03-20 | 2008-09-24 | 中兴通讯股份有限公司 | Method for preventing false resource release in tracing section updating or switching course |
| CN101365159A (en) * | 2007-08-08 | 2009-02-11 | 华为技术有限公司 | Bearing identification processing method and apparatus |
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