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Method and device for establishing strategic conversation

A technology of session establishment and policy session, applied in electrical components, wireless communication, connection management, etc., can solve the problem that DRA cannot find PCRF, etc.

Inactive Publication Date: 2013-07-17
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 strategic conversation
  • Method and device for establishing strategic conversation
  • Method and device for establishing strategic conversation

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0066] Figure 4 The flow chart of the policy session establishment method provided by this embodiment, the scenario based on this embodiment is: the terminal UE accesses the EPC through the WLAN network and establishes a PDN connection (in the scenario where the WLAN network does not support 3GPP authentication), or the terminal UE The H(e)NB accesses the EPC and establishes a PDN connection, the P-GW and the PCRF establish a Gx interface policy session, and the PCRF receives the local IP address and port number of the UE from the P-GW (if available) or After H(e)NB's local IP address and port number (if available), the PCRF initiates a 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: A terminal UE accesses from a WLAN or from an H(e)NB.

[0068]Step 402: The terminal establishes a PDN connection ...

Embodiment 2

[0077] This embodiment is based on the same scenario as Embodiment 1, the difference is that in this embodiment, the BPCF judges 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: A terminal UE accesses from a WLAN or from an H(e)NB.

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

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

[0081] Step 503a: BPCF makes the following judgments according to the received local information of user access:

[0082] 1) If the received local information of the user access is the local IP address and port nu...

Embodiment 3

[0088] This embodiment is based on the same scenario as 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 decides 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 Figure 6 step process.

[0089] Step 601: A terminal UE accesses from a WLAN or from an 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 on the Gx interface, the PCRF receives local information about user access.

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

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

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Abstract

The invention discloses a method and a device for establishing a strategic conversation. According to the method and the device, user equipment (UE) is accessed to an evolved packet core (EPC) through a WLAN (wireless local area network) or a femtocell to establish public data network (PDN) connection, a policy control and rule function (PCRF) or a broadband policy control function (BPCF) judges whether an IP connectivity access network (IP-CAN) conversation on an S9a interface is needed to be established according to received local information accessed by users after the strategic conversation of a Gx interface is established between a packet data network gateway (P-GW) and the PCRF, and the PCRF or the BPCF determines whether to establish the IP-CAN conversation according to determinant judgment results or not. According to the method and the device for establishing the strategic conversation, the technical problem in the prior art that when a plurality of UE establish a plurality of IP-CAN conversations under the same residential gateway (RG) and an application function (AF) of an application layer downloads related business information, a correct PCRF cannot be found in a diameter routing agent (DRA) of the existing EPC is solved.

Description

technical field [0001] The 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 (3GPP) consists of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN), Mobility 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 shown), wherein 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 trusted non-3GPP access; among them, untruste...

Claims

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Application Information

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IPC IPC(8): H04W76/02
Inventor 毕以峰周晓云
Owner ZTE CORP
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