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Method and device for establishing policy session

A technology for session establishment and policy session, applied in electrical components, wireless communication, connection management, etc., can solve the problem of DRA not finding PCRF and so on

Inactive Publication Date: 2018-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] In view of this, the main purpose of the present invention is to provide a method and device for establishing a policy session, which is used to solve the problem when the AF of the application layer downloads relevant service information when multiple UEs under the same RG establish multiple IP-CAN sessions. , a technical issue where the correct PCRF cannot be found from the DRA within the existing EPC domain

Method used

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  • Method and device for establishing policy session
  • Method and device for establishing policy session
  • Method and device for establishing policy session

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Figure 4 The flow chart of the method for establishing a policy session provided in this embodiment is based on the scenario that the terminal UE accesses the EPC through the WLAN network and establishes a PDN connection (the WLAN network does not support 3GPP authentication), or the terminal UE Access to EPC through H(e)NB and establish PDN connection, P-GW and PCRF establish a policy session on Gx interface, PCRF receives the local IP address and port number of UE from P-GW (if available) or After the H(e)NB local IP address and port number (if available), the PCRF initiates the gateway control session establishment operation to the BPCF of the WLAN network through the S9a interface. The method for establishing a policy session provided in this embodiment includes the following steps:

[0067] Step 401: The terminal UE accesses from the WLAN or from the H(e)NB.

[0068] Step 402: The terminal establishes a PDN connection to the EPC. After the P-GW and PCRF establish a Gx...

Embodiment 2

[0077] This embodiment is based on the same scenario as the embodiment 1, the difference is that in this embodiment, the BPCF determines whether an IP-CAN session needs to be established according to the local information of user access sent by the PCRF, see Figure 5 , The method includes the following steps:

[0078] Step 501: The terminal UE accesses from the WLAN or from the H(e)NB.

[0079] Step 502: The terminal establishes a PDN connection to the EPC. After the P-GW and the PCRF establish a policy session on the Gx interface, the PCRF receives the local information of the user's access.

[0080] Step 503: The PCRF actively initiates a gateway control session establishment operation on the S9a interface to the BPCF, and sends the local information accessed by the user to the BPCF.

[0081] Step 503a: The BPCF makes the following judgments according to the received local information accessed by the user:

[0082] 1) If the local information received from the user is the local IP ad...

Embodiment 3

[0088] This embodiment is based on the same scenario as the embodiment 1, the difference is that in this embodiment, after the PCRF receives the request to establish an IP-CAN session initiated by the BPCF, the PCRF then determines whether to establish an IP-CAN session based on the local information accessed by the user. CAN session, and decide to accept or reject the IP-CAN session establishment operation initiated by the BPCF according to the judgment result. See Image 6 The process of steps.

[0089] Step 601: Terminal UE accesses from WLAN or from H(e)NB.

[0090] Step 602: The terminal establishes a PDN connection to the EPC. After the P-GW and the PCRF establish a policy session of the Gx interface, the PCRF receives the local information of the user's access.

[0091] Step 603: The PCRF initiates a gateway control session establishment operation on the S9a interface to the BPCF.

[0092] Step 604: Triggered by step 603, the BPCF initiates an IP-CAN session establishment ope...

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Abstract

The invention discloses a method and device for establishing a strategy session. In the present invention, the UE accesses the EPC through the WLAN or the home base station and establishes a PDN connection. After the P-GW and the PCRF establish a policy session on the Gx interface, the PCRF or the BPCF judges whether it is necessary according to the received local information of the user access The IP-CAN session of the IP connection access network on the S9a interface is established, and the PCRF or BPCF decides whether to establish the IP-CAN session according to the judgment result. The present invention solves the problem that in the prior art, when multiple IP-CAN sessions are established by multiple UEs under the same RG, when the AF of the application layer downloads relevant service information, the DRA in the existing EPC domain cannot find the Correct PCRF technical issues.

Description

Technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for establishing a strategy session. Background technique [0002] The Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) consists of an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) and a mobile management unit (Mobility Management Entity, MME), Serving Gateway (Serving Gateway, S-GW), Packet Data Network Gateway (Packet Data Network Gateway, P-GW) and Home Subscriber Server (Home Subscriber Server, HSS). [0003] EPS supports interworking with non-3GPP systems (such as figure 1 As shown), where the intercommunication with the non-3GPP system is realized through the S2a / b / c interface, and the P-GW serves as the anchor point between the 3GPP and the non-3GPP system. In the EPS system architecture diagram, non-3GPP system access is divided into untrusted non-3GPP access and truste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/10
Inventor 毕以峰周晓云
Owner ZTE CORP