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A policy control method and system for IP flow migration

A technology of IP flow migration and policy control, applied in the field of IP flow migration policy control method and system, and can solve problems such as inconsistency and no solution provided

Inactive Publication Date: 2017-03-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0076] However, there are the following problems in the prior art: if the AF does not support IP flow migration, and the UE performs the IP flow migration process, at this time, because the PCRF can only report one IP-CAN type (or further RAT type), the The IP-CAN type (or further RAT type) actually transmitted by some IP flows that will cause the UE to access the AF service is inconsistent with the IP-CAN type (or further RAT type) reported by the PCRF to the AF
However, when IP flow migration is applied to this technology (for example, when migrating IP flow from non-3GPP to H(e)NB access, PCRF needs to reserve resources), and the following problems are still unresolved: after PCEF receives the IP flow migration request of UE (for example, when IP flow is migrated from non-3GPP to H(e)NB), PCRF provides IP flow routing rule information to PCRF, and PCRF according to the routing Rule request requests resource admission control from BBF access network
If the BBF access network refuses at this time, how should the PCRF deal with it, and no corresponding solution is given in the prior art

Method used

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  • A policy control method and system for IP flow migration
  • A policy control method and system for IP flow migration
  • A policy control method and system for IP flow migration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] In this embodiment, the UE first accesses through the 3GPP access network to establish a PDN connection, then establishes the same PDN connection through non-3GPP access, and simultaneously uses two accesses to use the PDN connection. A dynamic PCC (Policy and Charging Control, policy and charging control) is deployed in the network. Wherein, when accessing through a trusted non-3GPP, the UE adopts the DSMIPv6 protocol.

[0126] Such as Figure 8 As shown, the process of this embodiment mainly includes the following steps:

[0127] Step S801, the UE accesses the EPC through the 3GPP access network, wherein a tunnel is established between the S-GW and the P-GW through the GTP or PMIPv6 protocol, and existing services are transmitted on the tunnel.

[0128] The UE accesses the service provided by the AF through the established IP-CAN session. The service provided by the AF includes two service data flows (SDF), denoted as SDF1 and SDF2 respectively, and the AF requests ...

Embodiment 2

[0147] In this embodiment, the UE first establishes a PDN connection through a non-3GPP access network, and then establishes the same PDN connection through a 3GPP access network, and simultaneously uses two accesses to use the PDN connection. Dynamic PCC is deployed in the network. In the figure, when accessing through a trusted non-3GPP, the UE adopts the DSMIPv6 protocol.

[0148] Such as Figure 9 As shown, the process of this embodiment mainly includes the following steps:

[0149] Step S901, the UE accesses the EPC through the non-3GPP access network using the DSMIPv6 protocol, a DSMIPv6 tunnel is established between the UE and the P-GW / HA, and existing services are transmitted on the tunnel.

[0150] The address allocated to the UE by the non-3GPP access network is IP Address1 as the CoA, and the IP address allocated by the P-GW to the UE is IP Address2 as the HoA. The UE accesses the service provided by the AF through the established IP-CAN session. The service prov...

Embodiment 3

[0160] In this embodiment, after the UE implements multi-registration flow binding, it is a flow chart of data flow migration between two access networks, wherein the service data flow migrated by the UE involves two SDFs of the service provided by the AF (respectively denoted as one of SDF1 and SDF2). Dynamic PCC is deployed in the network.

[0161] Such as Figure 10 As shown, the process of this embodiment mainly includes the following steps:

[0162] Step S1001, UE is connected to 3GPP access and non-3GPP access at the same time, and binds multiple registration streams. And the two SDFs (respectively denoted as SDF1 and SDF2) for the UE to access the service provided by the AF are both transmitted through the non-3GPP access network.

[0163] In step S1002, the UE sends a DSMIPv6 binding update message to the P-GW / HA, and the binding update message carries (HoA, BID, FID). In this message, the UE provides IP flow migration routing rule information to the P-GW / HA, and c...

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Abstract

A Policy control method and system for Internet Protocol (IP) flow mobility are provided, wherein the method comprises: when a Policy and Charging Rules Function (PCRF) entity receives routing rule information of IP flow mobility, which is sent by a Policy and Charging Enforcement Function (PCEF) entity, if the PCRF entity has judged that a part of service data flow of the service provided by an Application Function (AF) entity is required to be transferred, and the AF entity does not support the IP flow mobility, or if the PCRF entity requests for resource acceptance control of a Broad Band Forum (BBF) access network according to the routing rule information of IP flow mobility, and the BBF access network refuses the request, the PCRF entity returns an indication that the routing rule information of IP flow mobility is refused to the PCEF entity.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a policy control method and system for IP flow migration. Background technique [0002] The Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short) is mainly composed of the Evolved Universal Terrestrial Radio Access Network (Universal Terrestrial Radio Access Network, E-UTRAN for short), Mobility Management Entity (MME for short), Serving Gateway (S-GW for short), and Packet Data Network Gateway (P-GW or PDN for short). GW), Home Subscriber Server (HSS for short), 3GPP Authentication, Authorization and Accounting (AAA for short) server, and Policy and Charging Rules Function (Policy and Charging Rules Function, for short It is composed of PCRF) entities and other supporting nodes. [0003] figure 1 A schematic diagram of the system architecture for the EPS. Among them, MME is responsible for mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/24H04W48/02H04W76/02
CPCH04L45/306
Inventor 周晓云毕以峰卢飞
Owner ZTE CORP