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Method and system for providing access network selection strategy based on network state

A technology for selecting strategies and network status, applied in access restriction, wireless communication, electrical components, etc., can solve the problems of increasing network burden, resource congestion, wireless resource data congestion, etc., and achieve the effect of avoiding burden

Inactive Publication Date: 2012-11-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the shortage of wireless resources (air interface side resources), data congestion is the main problem in actual network operation and maintenance. Configuration and user subscription The access network selection strategy for the UE is static. If the UE continues to choose ANDSF as the access network after receiving the strategy provided by the ANDSF, it will increase the burden on the network.

Method used

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  • Method and system for providing access network selection strategy based on network state
  • Method and system for providing access network selection strategy based on network state
  • Method and system for providing access network selection strategy based on network state

Examples

Experimental program
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Effect test

Embodiment 1

[0042] After the UE is attached to the EPC network, the UE is triggered (for example, the UE will be handed over), the UE needs to obtain the access network selection policy from the network side, and the UE sends a request for the access network selection policy to the ANDSF. Since ANDSF has obtained the network load information by interacting with the NMS network management system before, ANDSF formulates an access network selection policy for the UE based on the network load information at this time, and returns it to the UE. After receiving the access network selection policy, the UE follows the access network selection policy. The network selection strategy is used to select the access network. Such as Figure 4 shown, including the following steps:

[0043] Step 101, the NMS network management system adopts the active sending mode triggered by the timer, regularly interacts with the ANDSF, and provides network load information to the ANDSF, which information includes: c...

Embodiment 2

[0051] After the UE is attached to the EPC network, the UE is triggered (for example, the UE will be handed over), the UE needs to obtain the access network selection policy from the network side, and the UE sends a request for the access network selection policy to the ANDSF. At this time, after ANDSF receives the request, it requests network load information from the NMS network management system. The request message may include the identifier of the UE and / or the identifier of the cell where the UE is located. The NMS network management system returns the network load information to the ANDSF. Based on the network load information, the ANDSF is The UE formulates an access network selection policy and returns it to the UE. After receiving the access network selection policy, the UE selects an access network according to the access network selection policy. Such as Figure 5 shown, including the following steps:

[0052] Step 201, the UE attaches to the network, and the atta...

Embodiment 3

[0061] After the UE is attached to the EPC network, the NMS network management system notifies the ANDSF of the network load situation. The notification can be the timing notification in step 101 of the first embodiment, or the subscription notification in the step 204 of the second embodiment (for example: ANDSF sends The NMS network management system subscribes to the notification of the change of the network load status of a certain cell. The NMS network management system perceives the change of the network load status of the cell and needs to notify the ANDSF). ANDSF formulates an access network selection strategy for the UE based on the network load information. If the UE A session has been established with ANDSF before, and the ANDSF sends policies to the UE through the session. If the UE and the ANDSF have no session, the ANDSF can use the device management (OMA DM Push, Open Mobile Architecture Device Management) mode in the open mobile architecture. After receiving the...

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Abstract

The invention discloses a method for providing an access network selection strategy based on a network state. The method comprises the following steps that: a network management system interacts with an access network discovery and selection function (ANDSF) to provide network load information for the ANDSF, and the ANDSF formulates the access network selection strategy for user equipment (UE) according to the network load information. The invention also discloses a system for providing the access network selection strategy based on the network state. An access network selection strategy transmission unit of the system is used for transmitting the access network selection strategy to the UE after the ANDSF formulates the access network selection strategy for the UE according to the network load information. By the method and the system, the burden of an ANDSF network can be prevented from being aggravated.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and system for providing an access network selection strategy based on network status. Background technique [0002] The Evolved Packet System (EPS, Evolved Packet System) of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) is composed of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), Mobility Management Entity (MME, Mobility Management Entity), Serving Gateway (S-GW, Serving Gateway), Packet Data Network Gateway (P-GW or PDN GW, Packet Data Network Gateway), Home Subscriber Server (HSS, Home Subscriber Server) , 3GPP Authentication, Authorization and Accounting (AAA, Authentication, Authorization and Accounting) server, Policy and Charging Rules Function (PCRF, Policy and Charging Rules Function) entity and other supporting nodes. figure 1 It is a schematic diagra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/18
CPCH04W48/20H04W48/06
Inventor 芮通刘国燕周晓云
Owner ZTE CORP
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