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Method and apparatus for performing policy based on service chaining in LTE/EPC

A technology of service chain and equipment, applied in the field of communication, can solve problems such as policy control and management, and achieve the effect of supporting dynamic expansion and supporting resources

Inactive Publication Date: 2016-03-02
ALCATEL LUCENT SAS
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Problems solved by technology

[0005] However, in the 3GPP LTE / EPC (EPC, Evolved Package Core, Evolved Packet Core) structure, there is no relevant existing technology that can realize service chain service and policy control and management. Therefore, the existing technology cannot support SDN OpenFlow and service chain. 3GPP LTE / EPC control plane structure and policy control

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  • Method and apparatus for performing policy based on service chaining in LTE/EPC

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] figure 1 A schematic diagram showing a PCRF device 1 and a PCEF device 2 for implementing a policy based on a service chain in LTE / EPC according to one aspect of the present invention, wherein the PCRF device 1 includes a policy generation device 11 and a first sending device 12, The PCEF device 2 includes a first receiving device 21 and a first executing device 22 . Specifically, the policy generation unit 11 of the PCRF device 1 generates a corresponding service chain policy in response to the control and charging request about the user data to be provided sent by the corresponding PCEF device; the first sending unit 12 generates the corresponding service chain policy based on the extended Gx interface The service chain policy corresponding to the service chain policy establishes an attribute value pair, and sends the service chain policy to the PCE...

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Abstract

An objective of the invention is to provide a method and an apparatus for performing a policy based on service chaining in LTE / EPC. Specifically, the PCRF device generates a corresponding service chaining policy in response to a control charging request about to-be-provided user data sent by a corresponding PCEF device, the service chaining policy is sent to the PCEF device based on a service chaining policy install attribute value pair corresponding to the service chaining policy in an extended Gx interface, the PCEF device performs the service chaining policy for the user data. Compared with the prior art, the present invention introduces the service chaining function into the L TE / EPC, such that the existing 3GPP LTE / EPC control plane architecture and policy can support the software defined network (SDN) open flow and service chaining.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a technique for executing a strategy based on service chain in LTE / EPC. Background technique [0002] Service chaining is the concept of applying an ordered set of services to data packets or streams, that is, service chaining refers to the processing process corresponding to a series of services that the data to be provided to the user passes through before reaching the user. In addition to the basic routing and forwarding functions, the services in the chain can include such as load balancing, firewall, intrusion prevention, deep packet inspection (DPI, DeepPacketInspection), lawful interception (LI, LawfulIntercept) module, NAT (NetworkAddressTranslation, network address translation )44 (RFC3022), NAT64 (RFC6146), DS-LiteAFTR (DS-Lite: DualStackLite, lightweight dual stack, AFTR: AddressFamilyTranslationRouter, address family conversion router, RFC6333), NPTv6 (I...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/813H04L47/20
CPCH04W4/24H04L12/1407H04M15/66H04L67/63
Inventor 汪治蔡亦钢
Owner ALCATEL LUCENT SAS
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