Service transmission method, device, and system

• US 10,979,285 B2
• Filed: 03/29/2019
• Issued: 04/13/2021
• Est. Priority Date: 09/30/2016
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Yin, Yu, Qi, Caixia
• Primary Examiner(s): Grijalva Lobos, Boris D
• Application Number:
  US16/370,638
• Publication Number:
  US 20190230060A1
• Time in Patent Office: 746 Days
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 2012/4629 using multilayer switching, e.g. layer 3 switching
• CPC Class Codes: H04L 2101/668 Internet protocol [IP] address subnets
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 41/0654 using network fault recovery ring fault isolation or reconfiguration in loop networks without recovery actions by a network management system H04L12/437
• CPC Class Codes: H04L 41/0686 Additional information in the notification, e.g. enhancement of specific meta-data
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 61/5061 Pools of addresses
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present application relates to the field of communications technologies, and provides a service transmission method, a device, and a system, to resolve a problem that a service of user equipment is interrupted when a user plane network element is faulty. The method includes: obtaining, by a resource management node, an IP address pool; dividing the IP address pool into at least one IP address segment, and determining at least one tunnel endpoint identifier index based on the at least one IP address segment; and allocating the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one user plane network element.

Claims

1. A service transmission method, comprising:

obtaining, by a resource management node, an internet protocol (IP) address pool;

dividing, by the resource management node, the IP address pool into at least one IP address segment, and determining at least one tunnel endpoint identifier index based on the at least one IP address segment;

allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one user plane network element,

notifying, by the resource management node, a first forwarding node of a correspondence between the at least one IP address segment and the at least one user plane network element, wherein the first forwarding node is located between the at least one user plane network element and a packet data network; and

notifying, by the resource management node, a second forwarding node of a correspondence between the at least one tunnel endpoint identifier index and the at least one user plane network element, wherein the second forwarding node is located between an access network and the at least one user plane network element,

wherein uplink and downlink service data between the access network and the packet data network are forwarded through the first forwarding node and the second forwarding node.

2. The method according to claim 1, further comprising:

notifying, by the resource management node, a transmission control node of a correspondence among the at least one IP address segment, the at least one tunnel endpoint identifier index, and the at least one user plane network element for instructing the transmission control node to notify the first forwarding node of a correspondence between the at least one IP address segment and the at least one user plane network element, and notify the second forwarding node of a correspondence between the at least one tunnel endpoint identifier index and the at least one user plane network element.

3. The method according to claim 2, wherein the correspondence among the at least one IP address segment, the at least one tunnel endpoint identifier index, and the at least one user plane network element comprises:

a correspondence among the at least one IP address segment, the at least one tunnel endpoint identifier index, and an identifier of the at least one user plane network element, wherein the identifier of the at least one user plane network element comprises;

an IP address or an identity (ID) of the at least one user plane network element.

4. The method according to claim 1, wherein allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one user plane network element comprises:

allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to the at least one user plane network element based on user plane network element information, wherein the user plane network element information comprises;

a quantity of available user plane network elements and/or a capacity of a user plane network element in a network in which the resource management node is located.

5. The method according to claim 1, wherein allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one user plane network element comprises:

allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to a newly added user plane network element.

6. The method according to claim 1, wherein obtaining, by the resource management node, the IP address pool comprises:

obtaining, by the resource management node, the IP address pool from an operation and maintenance (O&

M) network element.

7. The method according to claim 1, wherein obtaining, by the resource management node, the IP address pool comprises:

obtaining, by the resource management node, some or all of the at least one IP address segment allocated to the at least one user plane network element, and using the obtained some or all of the at least one IP address segment as the IP address pool.

8. The method according to claim 7, wherein allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one user plane network element comprises:

allocating, by the resource management node, the at least one IP address segment and the at least one tunnel endpoint identifier index to at least one first user plane network element different from the at least one user plane network element.

9. The method according to claim 1, wherein the IP address segment and the tunnel endpoint identifier index that is determined based on the IP address segment are allocated to a same user plane network element.

10. A service transmission method, the method comprising:

obtaining, by a transmission control node, a correspondence among an internet protocol (IP) address segment, a tunnel endpoint identifier index, and a user plane network element that is sent by a resource management node;

notifying, by the transmission control node, a first forwarding node of a correspondence between the IP address segment and the user plane network element, wherein the first forwarding node is located between the user plane network element and a packet data network; and

notifying, by the transmission control node, a second forwarding node of a correspondence between the tunnel endpoint identifier index and the user plane network element, wherein the second forwarding node is located between an access network and the user plane network element,

wherein uplink and downlink service data between the access network and the packet data network are forwarded through the first forwarding node and the second forwarding node.

11. The method according to claim 10, wherein the correspondence among the IP address segment, the tunnel endpoint identifier index, and the user plane network element comprises:

a correspondence among the IP address segment, the tunnel endpoint identifier index, and an identifier of the user plane network element, wherein the identifier of the user plane network element comprises an IP address or an identity (ID) of the user plane network element.

12. A resource management node, comprising:

one or more processors; and

memory coupled to the one or more processors and comprising instructions which, when executed by the one or more processors, cause the resource management node to;

obtain an IP address pool,

divide the IP address pool into at least one IP address segment, and determine at least one tunnel endpoint identifier index based on the at least one IP address segment, and

allocate, to at least one user plane network element, the at least one IP address segment and the at least one tunnel endpoint identifier index,

notify a first forwarding node of a correspondence between the at least one IP address segment and the at least one user plane network element, wherein the first forwarding node is located between the at least one user plane network element and a packet data network; and

notify a second forwarding node of a correspondence between the at least one tunnel endpoint identifier index and the at least one user plane network element, wherein the second forwarding node is located between an access network and the at least one user plane network element,

wherein uplink and downlink service data between the access network and the packet data network are forwarded through the first forwarding node and the second forwarding node.

13. The resource management node according to claim 12, wherein the instructions, when executed by the one or more processors, cause the resource management node to:

notify a transmission control node of a correspondence among the at least one IP address segment, the at least one tunnel endpoint identifier index, and the at least one user plane network element for instructing the transmission control node to notify the first forwarding node of a correspondence between the at least one IP address segment and the at least one user plane network element, and notify the second forwarding node of a correspondence between the at least one tunnel endpoint identifier index and the at least one user plane network element.

14. The resource management node according to claim 13, wherein the correspondence among the least one IP address segment, the at least one tunnel endpoint identifier index, and the at least one user plane network element comprises:

a correspondence among the at least one IP address segment, the at least one tunnel endpoint identifier index, and an identifier of the at least one user plane network element, wherein the identifier of the at least one user plane network element comprises;

an IP address or an identity (ID) of the at least one user plane network element.

15. The resource management node according to claim 12, wherein the instructions, when executed by the one or more processors, cause the resource management node to:

allocate the at least one IP address segment and the at least one tunnel endpoint identifier index to the at least one user plane network element based on user plane network element information, wherein the user plane network element information comprises;

a quantity of available user plane network elements and/or a capacity of a user plane network element in a network in which the resource management node is located.

16. The resource management node according to claim 12, wherein the instructions, when executed by the one or more processors, cause the resource management node to:

allocate the at least one IP address segment and the at least one tunnel endpoint identifier index to a newly added user plane network element.