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Network selection method and device

A network selection and network technology, applied in the directions of access restriction, electrical components, wireless communication, etc., can solve the problems of frequent handover of the UE, the UE does not know, etc., to achieve the effect of improving the effectiveness

Active Publication Date: 2014-08-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the network selection conclusions formed by the two are contradictory, the UE will not know how to deal with it. In addition, it may also cause the UE to frequently switch between the two networks

Method used

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  • Network selection method and device
  • Network selection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment is described by taking the policy selection entity integrated in the terminal as an example, and the specific implementation process of this embodiment is as follows.

[0046] The policy selection entity obtains the ANDSF policy and the access network policy, wherein the WLAN priority in the ANDSF policy is higher than the priority of the UMTS / LTE network, and the access network policy is based on different RAT (Radio Access Technology, wireless access technology) loads Perform network selection, that is, when the load of the WLAN network is higher than the threshold, the UE selects UMTS / LTE network access (the load-based policy can be pre-agreed or configured by the network).

[0047] According to the obtained ANDSF policy and access network policy, the policy selection entity analyzes the following situations: when the terminal is located in the common coverage of the base station and the WLAN, and the load of the WLAN access point is higher than the th...

Embodiment 2

[0052] This embodiment is described by taking the policy selection entity as an independent network device as an example, and the specific implementation process of this embodiment is as follows.

[0053] The policy selection entity obtains the ANDSF policy and the access network policy. Among them, the UMTS / LTE network priority is higher than the WLAN priority in the ANDSF strategy, and the WLAN priority is higher than the UMTS / LTE network priority in the access network strategy. Specifically, the access network strategy is based on channel quality for network selection. That is, when the channel quality of the WLAN network is higher than the threshold, or when the channel quality of the WLAN network is higher than the threshold but the channel quality of the cell under the base station is lower than the threshold, the UE selects WLAN access.

[0054] According to the acquired ANDSF policy and access network policy, the policy selection entity analyzes the following situation...

Embodiment 3

[0058] This embodiment is described by taking the policy selection entity integrated in the base station as an example, and the specific implementation process of this embodiment is as follows.

[0059] The policy selection entity obtains the ANDSF policy and the access network policy. Among them, the UMTS / LTE network priority is higher than the WLAN priority in the ANDSF strategy, and the WLAN priority is higher than the UMTS / LTE network priority in the access network strategy. Specifically, the access network strategy is based on channel quality for network selection. That is, when the channel quality of the WLAN network is higher than the threshold, or when the channel quality of the WLAN network is higher than the threshold but the channel quality of the cell under the base station is lower than the threshold, the UE selects WLAN access.

[0060] According to the acquired ANDSF policy and access network policy, the policy selection entity analyzes the following situations:...

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Abstract

Disclosed are a network selection method and device. The method comprises: a policy selection entity acquiring a core network policy and an access network policy; the policy selection entity determining a coordination mechanism when the core network policy and the access network policy are adopted for selecting a network; and the policy selection entity sending the coordination mechanism to a UE, so as to indicate the UE to select a network according to the coordination mechanism. The present invention can solve the problem on network selection when an ANDSF policy is conflicting with an access network policy, so that a UE can select an appropriate network for access and receiving a service, improving the effectiveness of the network selection and the user experience.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a network selection method and device. Background technique [0002] The EPS (Evolved Packet System, Evolved Packet System) system is a system that supports multiple access technologies and mobility between multiple accesses. In a multi-access scenario, the terminal may be under common coverage of multiple 3GPP (3rd Generation Partnership Project, Third Generation Partnership Project) and / or non-3GPP access networks. These access networks may use different access technologies, may belong to different operators, and may also provide access to different core networks. [0003] UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) / LTE (Long Term Evolution, long-term evolution) and WLAN (Wireless Local Area Networks, wireless local area network) network coexistence scenarios such as figure 1 As shown, within the coverage of a UMTS / LT...

Claims

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Application Information

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IPC IPC(8): H04W48/18
CPCH04W48/18H04W48/14
Inventor 梁靖
Owner DATANG MOBILE COMM EQUIP CO LTD
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