CN108377526A - A kind of data distribution method and device - Google Patents

Abstract

The present invention discloses a method and device for establishing a bearer in a data offloading network. The method includes: a first device obtains data transmission path or bearer change information of a user equipment UE; the first device sends a first request message, wherein if the first When a device obtains the data transmission path of the UE, the first request message is used to request modification of the transmission path; if the first device obtains bearer change information of the UE, the first request message is used to request modification of the bearer The first device receives the first response message corresponding to the first request message, so as to solve the problem of cross-L-GW mobility in local offloading and IP continuity cannot be maintained.

Description

A data distribution method and device

technical field

The present invention relates to the field of communication technologies, in particular to a data distribution method and device.

Background technique

With the rapid development of wireless communication technologies, new application scenarios and business requirements continue to emerge, and existing communication networks are gradually facing challenges.

With the growth of Internet business traffic, core network gateways and backhaul links characterized by centralization have gradually become the bottleneck of data routing and forwarding. The data flood pressure faced by the core network and transmission network is also increasing. The emergence of services such as virtual reality, augmented display, and Internet of Vehicles requires strict requirements on end-to-end latency. Therefore, as an important technical means to reduce the delay and relieve the pressure on the core network, local offload means that when data is transmitted, it is no longer transmitted through the core network, but through the local gateway (L-GW). ) to the local network and the Internet. As shown in the network architecture in Figure 1, the local offload system mainly consists of four parts: the local network, the Internet, the backhaul link, and the core network.

However, in the local offload technology, the location of the user equipment (UE) is not static. When the UE moves across the L-GW, the original bearer needs to be removed and a new bearer needs to be re-established to transmit UE-related data. Therefore, the problem of inter-L-GW mobility cannot be effectively solved, and IP continuity cannot be maintained.

Contents of the invention

The present invention provides a method and device for establishing a bearer in a data distribution network, which are used to effectively solve the problem of inter-L-GW mobility and the problem that IP continuity cannot be maintained.

A method for establishing a bearer in a data distribution network, comprising:

The first device obtains data transmission path or bearer change information of the user equipment UE;

The first device sends a first request message, wherein if the first device obtains the UE's data transmission path, the first request message is used to request to modify the transmission path; if the first device obtains the UE's bearer change information , the first request message is used to request to modify the bearer;

The first device receives a first response message corresponding to the first request message.

Obtaining, by the first device, a data transmission path of the user equipment UE includes: obtaining by the first device an increased data transmission path; or obtaining a modified data transmission path by the first device.

The first device obtains bearer change information of the UE, including:

The first device obtains an increased bearer; or the first device obtains a modified bearer.

The first device sends a first request message, which specifically includes one of the following:

The first request message is used to request to add the bearer corresponding to the added part of the data transmission path or the data transmission path;

The first request message is used to request reestablishment of the bearer corresponding to the data transmission path;

The first request message is used to request to modify the bearer corresponding to the data transmission path;

The first request message is used to request to add bearers corresponding to the added part in the data transmission path;

The first request message is used to request to re-establish the bearer corresponding to the added data transmission path part in the data transmission path;

The first request message is used to request to modify the bearer corresponding to the modified data transmission path part in the data transmission path.

Also includes:

Sending a second request message, where the second request message is used to request to establish a bearer corresponding to the data transmission path or the added data transmission path part in the data transmission path based on the existing bearer.

The first device receives a first response message corresponding to the first request message, including:

The first device receives a first response message sent by the second device, where the first response message is that the second device is establishing the data transmission path, or that the second device is in the data transmission path The message sent after the bearer corresponding to the modified transmission path part.

The first request message includes at least one of the following information:

UE identification;

The access network information of the UE;

Added bearer flags;

Reconstructed bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information;

Information of S5/S8Interface;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

The first response message includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

The first request message is to re-establish a session request Re-Create Session Request; or modify a session request Modify Session Request;

The first response message is a session re-establishment response Re-Create Session Response; or a session modification response Modify Session Response.

A method for establishing a bearer in a data distribution network, comprising:

The second device receives the first request message, where if the first device obtains the data transmission path of the UE, the first request message is used to request modification of the transmission path; if the first device obtains the bearer change information of the UE, the The first request message is used to request to modify the bearer;

The second device sends a first response message corresponding to the first request message, where the first response message is modified by the second device during the establishment of the data transmission path, or the data transmission path The message sent after the bearer corresponding to the transmission path part.

The second device receives a first request message, where the first request message specifically includes one of the following:

The first request message is used to request to add the bearer corresponding to the added part of the data transmission path or the data transmission path;

The first request message is used to request reestablishment of the bearer corresponding to the data transmission path;

The first request message is used to request to modify the bearer corresponding to the data transmission path;

The first request message is used to request to add bearers corresponding to the added part in the data transmission path;

The first request message is used to request to re-establish the bearer corresponding to the added data transmission path part in the data transmission path;

The first request message is used to request to modify the bearer corresponding to the modified data transmission path part in the data transmission path.

After the second device receives the first request message and before the second device sends the first response message corresponding to the first request message, the method further includes: the second device obtains in the first request message Data transmission path or bearer change information with the user equipment UE.

Obtaining a data transmission path with the user equipment UE includes: obtaining an increased data transmission path; or obtaining a modified data transmission path.

Obtain bearer change information, including: obtain the bearer to be added;

or

Obtain the bearer to be modified.

It also includes: receiving a second request message, where the second request message is used to request to establish a bearer corresponding to the data transmission path or the added data transmission path part in the data transmission path on the basis of the existing bearer;

establishing a bearer corresponding to the second request message;

Sending a second request response, where the second request response is used to notify the first device that bearer establishment is complete.

The first request message includes at least one of the following information:

The identity of the UE;

The access network information of the UE;

Added bearer flags;

Rebuild bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information;

Information of S5/S8Interface;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

The first response message includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

The first request message is a Re-Create Session Request; or

Modify Session Request Modify Session Request;

The first response message is a Re-Create Session Response to re-establish a session; or

Modify Session Response Modify Session Response.

A first device comprising:

an obtaining unit, configured to obtain data transmission path or bearer change information of the user equipment UE;

A sending unit, configured to send a first request message, where if the first device obtains a data transmission path of the UE, the first request message is used to request modification of the transmission path;

If the first device obtains bearer change information of the UE, the first request message is used to request to modify the bearer;

A receiving unit, configured to receive a first response message corresponding to the first request message.

The obtaining unit is specifically configured to obtain an additional data transmission path; or

Get the modified data transfer path.

The obtaining unit is specifically used to obtain an increased load; or

Get the modified bearer.

The first request message sent by the sending unit specifically includes one of the following:

The first request message is used to request to add the bearer corresponding to the added part of the data transmission path or the data transmission path;

The first request message is used to request reestablishment of the bearer corresponding to the data transmission path;

The first request message is used to request to modify the bearer corresponding to the data transmission path;

The first request message is used to request to add bearers corresponding to the added part in the data transmission path;

The first request message is used to request to re-establish the bearer corresponding to the added data transmission path part in the data transmission path;

The first request message is used to request to modify the bearer corresponding to the modified data transmission path part in the data transmission path.

The sending unit is further configured to send a second request message, where the second request message is used to request to establish a connection with the data transmission path or a data transmission path added in the data transmission path on the basis of an existing bearer. Part of the corresponding bearer.

The receiving unit is specifically configured to receive a first response message sent by the second device, where the first response message is that the second device is establishing the data transmission path, or

A message sent by the second device after the bearer corresponding to the modified transmission path part in the data transmission path.

The first request message received by the receiving unit includes at least one of the following information:

The identity of the UE;

The access network information of the UE;

Added bearer flags;

Reconstructed bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information; S5/S8Interface information;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

The first response message received by the receiving unit includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

The first request message sent by the sending unit is a session re-establishment request Re-Create SessionRequest;

or

Modify Session Request Modify Session Request;

The first response message is a Re-Create Session Response to re-establish a session; or

Modify Session Response Modify Session Response.

A second device comprising:

A receiving unit, configured to receive a first request message, wherein if the first device obtains a data transmission path of the UE, the first request message is used to request modification of the transmission path; if the first device obtains bearer change information of the UE , the first request message is used to request to modify the bearer;

a sending unit, configured to send a first response message corresponding to the first request message, wherein the first response message is modified by the second device during the establishment of the data transmission path, or the data transmission path The message sent after the bearer corresponding to the transmission path part.

The first request message received by the receiving unit specifically includes one of the following:

The first request message is used to request to add the bearer corresponding to the added part of the data transmission path or the data transmission path;

The first request message is used to request reestablishment of the bearer corresponding to the data transmission path;

The first request message is used to request to modify the bearer corresponding to the data transmission path;

The first request message is used to request to add bearers corresponding to the added part in the data transmission path;

The first request message is used to request to re-establish the bearer corresponding to the added data transmission path part in the data transmission path;

The first request message is used to request to modify the bearer corresponding to the modified data transmission path part in the data transmission path.

Also includes:

The obtaining unit is configured to obtain, in the first request message, information about changing data transmission paths or bearers with the user equipment UE.

The obtaining unit is specifically configured to obtain an increased data transmission path; or obtain a modified data transmission path.

The obtaining unit is specifically configured to obtain a bearer to be added; or to obtain a bearer to be modified.

The receiving unit is further configured to receive a second request message, where the second request message is used to request to establish a data transmission path with the data transmission path or a data transmission path added in the data transmission path on the basis of an existing bearer Part of the corresponding bearer; establishing a bearer corresponding to the second request message;

The sending unit is further configured to send a second request response, where the second request response is used to notify the first device that bearer establishment is completed.

In the receiving unit, the received first request message includes at least one of the following information:

The identity of the UE;

The access network information of the UE;

Added bearer flags;

Rebuild bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information;

Information of S5/S8Interface;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

The first response message sent by the sending unit includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

The first request message received by the receiving unit is a session re-establishment request Re-Create SessionRequest;

Or modify the session request Modify Session Request;

The first response message sent by the sending unit is a session re-establishment response Re-Create SessionResponse; or a session modification response Modify Session Response.

By adopting the above technical solution, obtain the data transmission path or bearer change information of the UE, send the first request message, the first request message is used to request to add or modify the bearer corresponding to the transmission path, and receive the first request message corresponding to the first request message One responds to the information, so as to solve the problem of inter-L-GW mobility in the local distribution and the inability to maintain IP continuity.

Description of drawings

Fig. 1 is a data distribution network system architecture diagram;

Figure 2a is one of the architecture diagrams of the bearer establishment system in the data distribution network;

Figure 2b is the second architecture diagram of the bearer establishment system in the data distribution network;

FIG. 3 is a flow chart of a method for establishing a bearer in a data distribution network proposed in Embodiment 1 of the present invention;

FIG. 4 is a flowchart of a method for establishing a bearer in a data distribution network proposed in Embodiment 2 of the present invention;

FIG. 5 is a flowchart of a method for establishing a bearer in a data distribution network proposed in Embodiment 3 of the present invention;

FIG. 6 is a flowchart of a method for establishing a bearer in a data distribution network proposed in Embodiment 4 of the present invention;

FIG. 7 is a flowchart of a method for establishing a bearer in a data distribution network proposed in Embodiment 4 of the present invention;

8 to 9 are schematic diagrams of the structural composition of the bearer establishment device in the data distribution network proposed by Embodiment 5 of the present invention.

Detailed ways

In view of the fact that there is no effective way to solve the problem of inter-L-GW mobility in local distribution and the inability to maintain IP continuity, in the technical solution proposed by the present invention, by determining the increased data transmission path, and sending and transmission path Corresponding to the first request message, a bearer corresponding to the data transmission path is established, so as to solve the problem of inter-L-GW mobility in local offloading and IP continuity cannot be maintained.

For the convenience of explanation, in the technical solutions proposed by each embodiment of the present invention, a distinction is made between the source base station and the target base station for each base station, wherein the source base station is the base station currently accessed by the UE, and the target base station is the base station to be accessed by the UE , correspondingly, a distinction is made between the source L-GW and the target L-GW for the L-GW. I won't repeat them later.

The main realization principles, specific implementation methods and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be described in detail below with reference to each accompanying drawing.

As shown in Fig. 2a and Fig. 2b, the schematic diagram of the bearer establishment system in the data distribution network proposed by the embodiment of the present invention, in this system, mainly includes L-GW, evolved base station (evolved Node B, eNB), serving gateway (ServingGateWay , SGW), Mobility Management Entity (Mobility Management Entity, MME), in the system architecture shown in Figure 2a, L-GW and eNB serve as two independent network entities, and in Figure 2b, L-GW and The eNB exists as two modules in an independent network entity.

Embodiment one

Based on the system architecture shown in Figure 2a and Figure 2b, in the technical solution proposed by Embodiment 1 of the present invention, as shown in Figure 3, the specific processing flow is as follows:

301. The first device obtains data transmission path or bearer change information of the UE.

The first device obtains a data transmission path of the UE that is increased due to a location change in the local distribution network.

Specifically, in the technical solution proposed by the embodiment of the present invention, the first device obtains an increased data transmission path; or the first device obtains a modified data transmission path.

Specifically, the bearer change information includes the addition or change of the data transmission path or the bearer. In the technical solution proposed by the embodiment of the present invention, the first device obtains the bearer change information of the UE, including the first device obtaining the added bearer; or the first The device gets the modified bearer.

302. The first device sends a first request message.

Wherein, the first request message is used to request to add or modify a transmission path, or to request to add or modify a bearer.

In the technical solution proposed by the embodiment of the present invention, if the first device obtains the UE's data transmission path, the first request message is used to request to add the bearer corresponding to the obtained data transmission path; if the first device obtains the UE's bearer change information, the first request message is used to modify the bearer corresponding to the data transmission path.

Specifically, the first request message specifically includes one of the following:

The first type: the first request message is used to request to add a data transmission path or add a corresponding bearer in the data transmission path.

The second type: the first request message is used to request reestablishment of the bearer corresponding to the data transmission path.

The third type: the first request message is used to request to modify the bearer corresponding to the data transmission path.

Type four: the first request message is used to request to add bearers corresponding to the added part in the data transmission path.

Fifth type: the first request message is used to request reestablishment of the bearer corresponding to the added transmission path part in the data transmission path.

Sixth: The first request message is used to request to modify the bearer corresponding to the modified transmission path part in the data transmission path.

The first request message contains at least one of the following information:

(1) The identity of the UE.

The identifier of the UE can be International Mobile Subscriber Identification Number (IMSI), International Mobile Subscriber Number (Mobile Subscriber International ISDN/PSTN number, MSISDN), International Mobile Equipment Identity (International Mobile Equipment Identity, IMEI), user local information ( User Location Information, ULI).

(2) Access network information of the UE.

For example, it may be the standard of the communication network accessed by the UE.

(3) Increased bearing flags.

Bearer ID (EPS Bearer ID, EBI) to be added.

(4) Reconstructed bearer flags.

(5) Modified bearer flag.

(6) The endpoint identifier of the bearer corresponding to the added data transmission path.

Endpoint flag can be task (Target) L-GW), or S-GW, or source (Source) L-GW

(7) An endpoint identifier of the bearer corresponding to the reconstructed data transmission path.

(8) An endpoint identifier of the bearer corresponding to the modified data transmission path.

(9) Information about the service network accessed by the UE.

Including mobile country node (Mobile Country Code, MCC), mobile network node (Mobile Network Code, MNC) and so on.

(10) General Packet Radio Service Protocol-C Tunnel (GTP-C Tunnel) information.

May contain MME F-TEID.

(11) Information about the S5/S8 interface (Interface).

Including the protocol type (GTP-C), the address of the public data network (PDN), and the address of the PDN is included in the PDN F-TEID.

(12) Type of PDN.

For example, the type of the PDN is IPV4, IPV6 or IPV4, IPV6 and so on.

(13) Added bearer attributes.

Such as QoS, APN-AMBR, etc.

(14) Attributes of the reconstructed bearer.

(15) Attributes of the modified bearer.

303. The second device receives the first request message sent by the first device.

304. The second device obtains information about changing a data transmission path or a bearer with the UE in the first request message.

305. The second device sends a first response message corresponding to the first request message to the first device.

The first response message is a message sent by the second device after establishing the data transmission path, or the bearer corresponding to the modified transmission path part in the data transmission path.

306. When the first device receives the first response message corresponding to the first request message, the first device sends a bearer establishment request.

The bearer establishment request is used to request the target base station to establish a bearer corresponding to the added data transmission path.

In the above 305-306, the first response message includes at least one of the following information:

1) Confirmation information of the added data transmission path.

2) The sign of the transmission tunnel corresponding to the added data transmission path.

3) The bearer flag corresponding to the added data transmission path.

307. The second device receives the bearer establishment request sent by the first device.

308. The second device establishes a bearer corresponding to the added data transmission path according to the bearer establishment request.

309. The second device sends a bearer establishment response.

The bearer establishment response is used to notify the first device that the bearer establishment is completed.

410. The first device receives a bearer establishment response sent by the second device after the bearer corresponding to the added data transmission path is established.

In the technical solution proposed above in Embodiment 1 of the present invention, the first request message may be a session re-establishment request (Re-Create Session Request), and the first response message may be a session re-establishment response (Re-CreateSession Response).

Optionally, in the above method flow, it may also include:

The first device sends a second request message, where the second request message is used to request to establish a bearer corresponding to the data transmission path or the transmission path part added in the data transmission path on the basis of the existing bearer.

The second device receives the second request message. The second device establishes a bearer corresponding to the second request message, and sends a second request response.

The second request response is used to notify the first device that the bearer establishment is completed.

Embodiment two

Based on the system architecture shown in Figure 2a and Figure 2b, in the technical solution proposed by Embodiment 1 of the present invention, as shown in Figure 4, the specific processing flow is as follows:

401. The second device obtains a data transmission path added by a UE in a local offload network due to a location change.

402. The second device sends, to the source local gateway, a second request message for requesting modification of an existing bearer of the data transmission path.

Wherein the second request message contains at least one of the following information:

(1) The identity of the UE.

The identifier of the UE can be International Mobile Subscriber Identification Number (IMSI), International Mobile Subscriber Number (Mobile Subscriber International ISDN/PSTN number, MSISDN), International Mobile Equipment Identity (International Mobile Equipment Identity, IMEI), user local information ( User Location Information, ULI).

(2) Access network information of the UE.

For example, it may be the standard of the communication network accessed by the UE.

(3) Increased bearing flags.

Bearer ID (EPS Bearer ID, EBI) to be added.

(4) Reconstructed bearer flags.

(5) Modified bearer flag.

(6) The endpoint identifier of the bearer corresponding to the added data transmission path.

Endpoint flag can be task (Target) L-GW), or S-GW, or source (Source) L-GW

(7) An endpoint identifier of the bearer corresponding to the reconstructed data transmission path.

(8) An endpoint identifier of the bearer corresponding to the modified data transmission path.

(9) Information about the service network accessed by the UE.

Including mobile country node (Mobile Country Code, MCC), mobile network node (Mobile Network Code, MNC) and so on.

(10) General Packet Radio Service Protocol-C Tunnel (GTP-C Tunnel) information.

May contain MME F-TEID.

(11) Information about the S5/S8 interface (Interface).

Including the protocol type (GTP-C), the address of the public data network (PDN), and the address of the PDN is included in the PDN F-TEID.

(12) Type of PDN.

For example, the type of the PDN is IPV4, IPV6 or IPV4, IPV6 and so on.

(13) Added bearer attributes.

Such as QoS, APN-AMBR, etc.

(14) Attributes of the reconstructed bearer.

(15) Attributes of the modified bearer.

403. The source base station receives a second request message sent by the second device for requesting modification of an existing bearer of the data transmission path.

404. The source base station sends a second response message to the second device.

405. When receiving the second response message corresponding to the second request message, the second device triggers the first device to send a bearer establishment request.

The bearer establishment request is used to request the target base station to establish a bearer corresponding to the added data transmission path.

The second response message contains at least one of the following information:

1) Confirmation information of the added data transmission path.

2) The sign of the transmission tunnel corresponding to the added data transmission path.

3) The bearer flag corresponding to the added data transmission path.

In the technical solution proposed above in the second embodiment of the present invention, the second request message is a modification session request (Modity Session Request), and the second response message is a modification session response (Modity Session Response).

Embodiment Three

Based on the system architecture shown in Figure 2a and Figure 2b, it is assumed that the APN (L-GW) is maintained by adding the S-GW as the bearer intermediary node. The original bearer is: UE——Target eNB——Target L-GW, and the bearer update path It is: UE——TargeteNB——Target L-GW——S-GW——Source L-GW. Embodiment 3 of the present invention proposes a method for establishing a bearer in a data distribution network, as shown in FIG. 5 , and its specific processing flow is as follows:

501. The Source(H)eNB determines to trigger S1 reset.

502. The Source (H) eNB sends a handover requirement (Handover Required).

In Handover Required, the bearer path is included from L-GW to TEIDs for Sxx).

Wherein, Sxx may be an identifier of the service gateway.

503. The MME sends a handover request (Handover Request) to the Source(H)eNB.

Include the L-GW identifier and the TEIDs of Sxx in the Handover Request. Wherein, Sxx may be an identifier of the service gateway.

504. The Source(H)eNB replies with a handover response (Handover Request Ack).

Include the ID of the Target L-GW in the Handover Request Ack.

505. The MME sends a session re-creation request (Re-Create Session Request) to the Serving GW.

506. The Serving GW sends a create session request (Create Session request) to the Target L-GW.

The transmission path target L-GW<->S-GW, Target L-GW<->Target(H)eNB is included in the Create Session request.

507. The Target L-GW replies with a create session response (Create Session response).

508. The Serving GW sends a session modification request (Modity Session Request) to the Source L-GW.

509. The Source L-GW sends the Modity Session response to the Serving GW.

510. The Serving GW sends a Re-Create Session Response to the MME.

511. The MME sends a bearer setup request (Bearer Setup Request) to the Target(H)eNB

Include the correlation ID (Correlation ID) in the Bearer Setup Request.

512. The MME sends a handover request (Handover Command) to the Source(H)eNB.

513. The Source(H)eNB forwards the Handover Command to the UE.

514. The UE sends a handover confirmation (Handover confirm) to the Target(H)eNB.

515. The Target(H)eNB sends a handover notification (Handover Notify) to the MME.

516. The Target(H)eNB sends a bearer setup response (Bearer Setup Response) to the MME.

517. The MME sends a Modity Session request to the Serving GW.

518. The Serving GW sends a Modity Session Response to the MME.

519. The Target(H)eNB sends a Create Session Request to the Target L-GW.

The Create Session Request includes Target(H)eNB and TEID.

520. The Target L-GW sends a Create Session Response to the Target(H)eNB.

Create Session Response includes L-GW TEID.

521. The MME sends a UE context release request (UE Context ReleaseCommand) to the Source(H)eNB.

522. The Source(H)eNB sends the UE context release complete (UE Context ReleaseComplete) to the MME.

Embodiment four

Based on the system architecture shown in Figure 2a and maintaining the APN (L-GW), Embodiment 4 of the present invention proposes a method for establishing a bearer in a data distribution network. The original bearer is: UE——Target eNB——Target L-GW, bearer The update path is: UE——Target eNB——Source eNB——Source L-GW.

The first way is to interactively establish the bearer of the Target eNB--Source eNB through the X2 interface. As shown in Figure 6, the specific processing flow is as follows:

601. The Source(H)eNB determines to trigger X2 reset.

602. The Source (H) eNB sends a Handover Requset to the Target eNB through the X2 interface.

The bearer path included in the Handover Requset is L-GW to TEIDs for Sxx.

603. The Target eNB sends a Handover Requset ACK to the Source(H)eNB through the X2 interface.

Different L-GWs are included in the Handover Requset ACK.

604. The Target eNB sends a Create Session Request to the Source(H)eNB.

The Create Session Request includes the transmission path T(H)eNB<->S(H)eNB.

605. The Source(H)eNB sends a Handover Command to the UE.

606. The Source(H)eNB sends a Create Session response to the Target(H)eNB.

Include the TEID in the Create Session response.

607, the UE sends a Handover Confirm to the Target(H)eNB.

608. The Target(H)eNB sends a path switching request, or a Modity Bearer request, to the MME.

609. The MME sends a Modity Bearer request to the Serving GW.

Include the added add Target(H)Enb-Source eNb in the Modity Bearer request.

610. The Serving GW sends a Modity Bearer Response to the MME.

611. The MME sends a path switching confirmation, or a Modity Bearer Response, to the Target(H)eNB.

The second way is to interactively establish the bearer of the Target eNB——the Source eNB through the S1 interface. As shown in Figure 7, the specific processing flow is as follows:

701. The Source(H)eNB determines to trigger S1 reset.

702. The Source (H) eNB sends a Handover Requset to the Target eNB through the S1 interface.

The bearer path included in the Handover Requset is L-GW to TEIDs for Sxx.

703. The Target eNB sends a Handover Requset ACK to the Source(H)eNB through the S1 interface.

Different L-GWs are included in the Handover Requset ACK.

705. The Source(H)eNB sends a Handover Command to the UE.

706. The UE sends a Handover Confirm to the Target(H)eNB.

707. The Target(H)eNB sends a path switching request, or a Modity Bearer request, to the MME.

708. The MME sends a Modity Bearer request to the Serving GW.

Include the added add Target(H)Enb-Source eNb in the Modity Bearer request.

709. The Serving GW sends the Modity Bearer Response to the MME.

710. The MME sends a path switching confirmation, or a Modity Bearer Response, to the Target(H)eNB.

711. The MME sends a Create Session Request to the Target(H)eNB.

TEIDs are included in the Create Session Request.

712. The Target(H)eNB sends a Create Session Response to the MME.

713. The MME sends a Modity Bearer request to the Source(H)eNB.

714. The Source(H)eNB sends a Modity Bearer Response to the MME.

Optionally, the above 610-611 may also be the following processing flow:

710', the Source(H)eNB sends a Create Bearer request to the Target(H)eNB.

711', Target(H)eNB sends Create Bearer Response to Source(H)eNB.

Embodiment five

Embodiment 5 of the present invention proposes a first device, as shown in FIG. 8 , including:

The obtaining unit 801 is configured to obtain data transmission path or bearer change information of a user equipment UE.

The sending unit 802 is configured to send a first request message, where the first request message is used to request adding or modifying the transmission path, or request adding or modifying the bearer.

The receiving unit 803 is configured to receive a first response message corresponding to the first request message.

Specifically, the above obtaining unit 801 is specifically configured to obtain an increased data transmission path; or obtain a modified data transmission path.

Specifically, the above obtaining unit 801 is specifically configured to obtain an added bearer; or obtain a modified bearer.

Specifically, the first request message sent by the above-mentioned sending unit 802 specifically includes one of the following: the first request message is used to request to add the transmission path or to add a part of the corresponding bearer.

The first request message is used to request reestablishment of the bearer corresponding to the transmission path.

The first request message is used to request to modify the bearer corresponding to the transmission path.

The first request message is used to request to add a bearer corresponding to the added transmission path part in the transmission path.

The first request message is used to request to reestablish the bearer corresponding to the added transmission path part in the transmission path.

The first request message is used to request to modify the bearer corresponding to the modified transmission path part in the transmission path.

Optionally, the above-mentioned sending unit 802 is further configured to send a second request message, where the second request message is used to request, on the basis of an existing bearer, to establish a connection with the data transmission path or to add a The corresponding bearer of the transmission path part.

Specifically, the above-mentioned receiving unit 803 is specifically configured to receive a first response message sent by the second device, where the first response message indicates that the second device is establishing the data transmission path, or the data transmission path The message sent after the bearer corresponding to the modified transmission path part.

Specifically, the first request message received by the receiving unit 803 includes at least one of the following information:

The identity of the UE;

The access network information of the UE;

Added bearer flags;

Reconstructed bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information;

Information of S5/S8Interface;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

Specifically, the first response message received by the receiving unit 803 includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

Specifically, the first request message sent by the sending unit 802 is a session re-establishment request Re-Create Session Request; or a session modification request Modify Session Request; the first response message is a session re-establishment response Re-Create Session Response ; or modify the session response Modify SessionResponse.

Correspondingly, Embodiment 5 of the present invention also proposes a second device, as shown in FIG. 9 , including:

The receiving unit 901 is configured to receive a first request message, where the first request message is used to request adding or modifying the transmission path, or request adding or modifying the bearer.

A sending unit 902, configured to send a first response message corresponding to the first request message, where the first response message is the second device establishing the data transmission path, or modifying the data transmission path The message sent after the corresponding bearer of the transmission path part.

Specifically, the first request message received by the receiving unit 901 specifically includes one of the following:

The first request message is used to request to add the transmission path or to add part of the corresponding bearers.

The first request message is used to request reestablishment of the bearer corresponding to the transmission path.

The first request message is used to request to modify the bearer corresponding to the transmission path.

The first request message is used to request to add a bearer corresponding to the added transmission path part in the transmission path.

The first request message is used to request to reestablish the bearer corresponding to the added transmission path part in the transmission path.

The first request message is used to request to modify the bearer corresponding to the modified transmission path part in the transmission path.

Optionally, also include:

The obtaining unit is configured to obtain, in the first request message, information about changing data transmission paths or bearers with the user equipment UE.

Specifically, the above-mentioned obtaining unit is specifically configured to obtain an increased data transmission path; or obtain a modified data transmission path.

Specifically, the above obtaining unit is specifically configured to obtain the bearer to be added; or to obtain the bearer to be modified.

Specifically, the above-mentioned receiving unit 901 is further configured to receive a second request message, and the second request message is used to request, on the basis of an existing bearer, to establish an A bearer corresponding to the transmission path part; establishing a bearer corresponding to the second request message;

Optionally, the sending unit 902 is further configured to send a second request response, where the second request response is used to notify the first device that bearer establishment is completed.

Specifically, the first request message received by the receiving unit 901 includes at least one of the following information:

The identity of the UE;

The access network information of the UE;

Added bearer flags;

Rebuild bearer flags;

modified bearer flag;

The endpoint flag of the bearer corresponding to the added data transmission path;

The endpoint flag of the bearer corresponding to the reconstructed data transmission path;

The endpoint flag of the bearer corresponding to the modified data transmission path;

Information about the service network accessed by the UE;

General packet radio service protocol-C tunnel GTP-C Tunnel information;

Information of S5/S8Interface;

Type of public data network PDN;

Increased bearer attributes;

the properties of the reconstructed bearer;

The properties of the modified bearer.

Specifically, the first response message sent by the sending unit 902 includes at least one of the following information:

Confirmation information of the data transmission path;

The sign of the transmission tunnel corresponding to the data transmission path;

The bearer flag corresponding to the data transmission path.

Specifically, the first request message received by the receiving unit 901 is a Re-Create Session Request; or a Modify Session Request; the first response message sent by the sending unit is a Re-Create Session Request; Response Re-Create Session Response; or modify session response Modify Session Response.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices (devices), or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (36)

1. carrying establishing method in a kind of data distribution network, which is characterized in that including：

First equipment obtains the data transfer path or carrying modification information of user equipment (UE)；

First equipment sends the first request message, if wherein when the first equipment obtains the data transfer path of UE, described the One request message changes the transmission path for asking；If the first equipment obtains the carrying modification information of UE, described first Request message changes the carrying for asking；

First equipment receives the first response message corresponding with first request message.

2. the method as described in claim 1, which is characterized in that the first equipment obtains the data transfer path of user equipment (UE), Including：

First equipment, which obtains, increases data transfer path；Or

First equipment obtains the data transfer path of modification.

3. the method as described in claim 1, which is characterized in that the first equipment obtains the carrying modification information of UE, including：

First equipment obtains increased carrying；Or

First equipment obtains the carrying of modification.

4. the method as described in claim 1, which is characterized in that first equipment sends the first request message, includes specifically One kind in following：

First request message increases part for asking to increase to build in the data transfer path or the data transfer path Corresponding carrying；

First request message rebuilds the corresponding carrying of the data transfer path for asking；

First request message changes the corresponding carrying of the data transfer path for asking；

First request message builds the corresponding carrying in increased part in the data transfer path for asking to increase；

First request message is corresponded to for asking to rebuild increased data transmission route path portion in the data transfer path Carrying；

First request message is used to ask to change the data transmission route path portion changed in the data transfer path and corresponds to Carrying.

5. the method as described in Claims 1 to 4 is any, which is characterized in that further include：

The second request message is sent, second request message is established and the number for asking on the basis of existing carrying According to the corresponding carrying of increased data transmission route path portion in transmission path or the data transfer path.

6. the method as described in Claims 1 to 4 is any, which is characterized in that first equipment is received asks with described first Corresponding first response message of message, including：

First equipment receives the first response message that the second equipment is sent, wherein first response message is described second Equipment is in the transmission path portion for establishing the data transfer path or second equipment is changed in the data transfer path Divide the message sent after corresponding carrying.

7. the method as described in Claims 1 to 4 is any, which is characterized in that in first request message comprising it is following at least A kind of information：

The mark of the UE；

The access network information of the UE；

Increased carrying mark；

The carrying mark of reconstruction；

The carrying mark of modification；

The end marker of the corresponding carrying of increased data transfer path；

The end marker of the corresponding carrying of data transfer path of reconstruction；

The end marker of the corresponding carrying of data transfer path of modification；

The information of the service network of the UE access；

The information of general packet radio service agreement-C tunnel GTP-C Tunnel；

The information of S5/S8 Interface；

The type of public data network PDN；

The attribute of increased carrying；

The attribute of the carrying of reconstruction；

The attribute of the carrying of modification.

8. the method as described in Claims 1 to 4 is any, which is characterized in that first response message includes following at least one Kind information：

The confirmation message of the data transfer path；

The corresponding mark for transmitting tunnel of the data transfer path；

The corresponding carrying mark of the data transfer path.

9. the method as described in Claims 1 to 4 is any, which is characterized in that first request message is to re-establish session Ask Re-Create Session Request；Or modification session request Modify Session Request；

First response message is to re-establish conversational response Re-Create Session Response；Or modification session is rung Answer Modify Session Response.

10. carrying establishing method in a kind of data distribution network, which is characterized in that including：

Second equipment receives the first request message, if wherein when the first equipment obtains the data transfer path of UE, described first asks Ask message for ask the modification transmission path；If the first equipment obtains the carrying modification information of UE, first request Message changes the carrying for asking；

Second equipment sends the first response message corresponding with first request message, wherein first response message It is the transmission path part pair that second equipment is changed in establishing the data transfer path or the data transfer path The message sent after the carrying answered.

11. method as claimed in claim 10, which is characterized in that the second equipment receives the first request message, and described first asks It includes following middle one kind to seek message specifically：

First request message increases part for asking to increase to build in the data transfer path or the data transfer path Corresponding carrying；

First request message rebuilds the corresponding carrying of the data transfer path for asking；

First request message changes the corresponding carrying of the data transfer path for asking；

First request message builds the corresponding carrying in increased part in the data transfer path for asking to increase；

First request message is corresponded to for asking to rebuild increased data transmission route path portion in the data transfer path Carrying；

First request message is used to ask to change the data transmission route path portion changed in the data transfer path and corresponds to Carrying.

12. method as claimed in claim 10, which is characterized in that described after the second equipment receives the first request message Before second equipment sends the first response message corresponding with first request message, further include：

Second equipment is obtained and is changed with the data transfer path of user equipment (UE) or carrying in first request message Information.

13. method as claimed in claim 12, which is characterized in that the data transfer path with user equipment (UE) is obtained, including：

It obtains and increases data transfer path；Or

Obtain the data transfer path of modification.

14. method as claimed in claim 12, which is characterized in that carrying modification information is obtained, including：

Obtain carrying to be increased；Or

Obtain carrying to be modified.

15. the method as described in claim 10~14 is any, which is characterized in that further include：

The second request message is received, second request message is established and the number for asking on the basis of existing carrying According to the corresponding carrying of increased data transmission route path portion in transmission path or the data transfer path；

Establish carrying corresponding with second request message；

The second request response is sent, wherein the second request response is completed for notifying the first equipment carrying to establish.

16. the method as described in claim 10~14 is any, which is characterized in that in first request message comprising it is following extremely A kind of few information：

The mark of the UE；

The access network information of the UE；

Increased carrying mark；

Rebuild carrying mark；

The carrying mark of modification；

The end marker of the corresponding carrying of increased data transfer path；

The end marker of the corresponding carrying of data transfer path of reconstruction；

The end marker of the corresponding carrying of data transfer path of modification；

The information of the service network of the UE access；

The information of general packet radio service agreement-C tunnel GTP-C Tunnel；

The information of S5/S8 Interface；

The type of public data network PDN；

The attribute of increased carrying；

The attribute of the carrying of reconstruction；

The attribute of the carrying of modification.

17. the method as described in claim 10~14 is any, which is characterized in that first response message include it is following at least A kind of information：

The confirmation message of the data transfer path；

The corresponding mark for transmitting tunnel of the data transfer path；

The corresponding carrying mark of the data transfer path.

18. the method as described in claim 10~14 is any, which is characterized in that first request message is to re-establish meeting Words request Re-Create Session Request；Or modification session request Modify Session Request；

First response message is to re-establish conversational response Re-Create Session Response；Or modification session is rung Answer Modify Session Response.

19. a kind of first equipment, which is characterized in that including：

Obtaining unit, the data transfer path for obtaining user equipment (UE) or carrying modification information；

Transmission unit, for sending the first request message, if wherein when the first equipment obtains the data transfer path of UE, described the One request message changes the transmission path for asking；If the first equipment obtains the carrying modification information of UE, described first Request message changes the carrying for asking；

Receiving unit, for receiving the first response message corresponding with first request message.

20. the first equipment as claimed in claim 19, which is characterized in that the obtaining unit is specifically used for obtaining increase number According to transmission path；Or obtain the data transfer path of modification.

21. the first equipment as claimed in claim 19, which is characterized in that the obtaining unit is specifically used for obtaining increased Carrying；Or obtain the carrying of modification.

22. the first equipment as claimed in claim 19, which is characterized in that the transmission unit, first request of transmission Message specifically include it is following in one kind：

First request message increases part for asking to increase to build in the data transfer path or the data transfer path Corresponding carrying；

First request message rebuilds the corresponding carrying of the data transfer path for asking；

First request message changes the corresponding carrying of the data transfer path for asking；

First request message builds the corresponding carrying in increased part in the data transfer path for asking to increase；

First request message is corresponded to for asking to rebuild increased data transmission route path portion in the data transfer path Carrying；

First request message is used to ask to change the data transmission route path portion changed in the data transfer path and corresponds to Carrying.

23. the first equipment as described in claim 19~22 is any, which is characterized in that the transmission unit is additionally operable to send Second request message, second request message are established and the data transmission route for asking on the basis of existing carrying The corresponding carrying of increased data transmission route path portion in diameter or the data transfer path.

24. the first equipment as described in claim 19~22 is any, which is characterized in that the receiving unit, specifically for connecing The first response message for receiving the transmission of the second equipment, wherein first response message, which is second equipment, is establishing the data It is sent out after the corresponding carrying in transmission path part that transmission path or second equipment are changed in the data transfer path The message sent.

25. the first equipment as described in claim 19~22 is any, which is characterized in that the receiving unit receive described the Include following at least one information in one request message：

The mark of the UE；

The access network information of the UE；

Increased carrying mark；

The carrying mark of reconstruction；

The carrying mark of modification；

The end marker of the corresponding carrying of increased data transfer path；

The end marker of the corresponding carrying of data transfer path of reconstruction；

The end marker of the corresponding carrying of data transfer path of modification；

The information of the service network of the UE access；

The information of general packet radio service agreement-C tunnel GTP-C Tunnel；

The information of S5/S8 Interface；

The type of public data network PDN；

The attribute of increased carrying；

The attribute of the carrying of reconstruction；

The attribute of the carrying of modification.

26. the first equipment as described in claim 19~22 is any, which is characterized in that the receiving unit, reception it is described First response message includes following at least one information：

The confirmation message of the data transfer path；

The corresponding mark for transmitting tunnel of the data transfer path；

The corresponding carrying mark of the data transfer path.

27. the first equipment as described in claim 19~22 is any, which is characterized in that the transmission unit send described the One request message is to re-establish session request Re-Create Session Request；Or modification session request Modify Session Request；First response message is to re-establish conversational response Re-Create Session Response； Or modification conversational response Modify Session Response.

28. a kind of second equipment, which is characterized in that including：

Receiving unit, for receiving the first request message, if wherein when the first equipment obtains the data transfer path of UE, described the One request message changes the transmission path for asking；If the first equipment obtains the carrying modification information of UE, described first Request message changes the carrying for asking；

Transmission unit, for sending the first response message corresponding with first request message, wherein first response disappears Breath is the transmission path part that second equipment is changed in establishing the data transfer path or the data transfer path The message sent after corresponding carrying.

29. the second equipment as described in claim 287, which is characterized in that the receiving unit, first request of reception Message includes specifically following middle one kind：

First request message increases part for asking to increase to build in the data transfer path or the data transfer path Corresponding carrying；

First request message rebuilds the corresponding carrying of the data transfer path for asking；

First request message changes the corresponding carrying of the data transfer path for asking；

First request message builds the corresponding carrying in increased part in the data transfer path for asking to increase；

First request message is corresponded to for asking to rebuild increased data transmission route path portion in the data transfer path Carrying；

First request message is used to ask to change the data transmission route path portion changed in the data transfer path and corresponds to Carrying.

30. the second equipment as claimed in claim 28, which is characterized in that further include：

Obtaining unit, in first request message, obtaining and becoming with the data transfer path of user equipment (UE) or carrying More information.

31. the second equipment as claimed in claim 30, which is characterized in that the obtaining unit is specifically used for obtaining increase number According to transmission path；Or obtain the data transfer path of modification.

32. the second equipment as claimed in claim 30, which is characterized in that the obtaining unit is specifically used for obtaining to be increased Carrying；Or obtain carrying to be modified.

33. the second equipment as described in claim 28~31 is any, which is characterized in that the receiving unit is additionally operable to receive Second request message, second request message are established and the data transmission route for asking on the basis of existing carrying The corresponding carrying of increased data transmission route path portion in diameter or the data transfer path；It establishes and second request message Corresponding carrying；

The transmission unit is additionally operable to send the second request response, wherein the second request response is for notifying described first Equipment carrying, which is established, to be completed.

34. the second equipment as described in claim 28~31 is any, which is characterized in that the receiving unit, the institute received It states in the first request message comprising following at least one information：

The mark of the UE；

The access network information of the UE；

Increased carrying mark；

Rebuild carrying mark；

The carrying mark of modification；

The end marker of the corresponding carrying of increased data transfer path；

The end marker of the corresponding carrying of data transfer path of reconstruction；

The end marker of the corresponding carrying of data transfer path of modification；

The information of the service network of the UE access；

The information of general packet radio service agreement-C tunnel GTP-C Tunnel；

The information of S5/S8 Interface；

The type of public data network PDN；

The attribute of increased carrying；

The attribute of the carrying of reconstruction；

The attribute of the carrying of modification.

35. the second equipment as described in claim 28~31 is any, which is characterized in that the first sound that the transmission unit is sent It includes following at least one information to answer message：

The confirmation message of the data transfer path；

The corresponding mark for transmitting tunnel of the data transfer path；

The corresponding carrying mark of the data transfer path.

36. the second equipment as described in claim 28~31 is any, which is characterized in that the receiving unit receive described the One request message is to re-establish session request Re-Create Session Request；Or modification session request Modify Session Request；First response message that the transmission unit is sent is to re-establish conversational response Re-Create Session Response；Or modification conversational response Modify Session Response.