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Integrated core network and accessing method thereof

A core network and access network technology, applied in the field of converged networks, can solve problems such as AC forwarding bottlenecks and affect AC performance, avoid business and management bottlenecks, and ensure access control and service quality.

Active Publication Date: 2013-09-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid increase of network capacity, if the AC is still used as the only outlet for control messages and data, the performance of the AC will be affected, making the AC a forwarding bottleneck

Method used

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  • Integrated core network and accessing method thereof
  • Integrated core network and accessing method thereof
  • Integrated core network and accessing method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0097] Figure 3a It is a schematic diagram of a non-roaming scenario of architecture 1 in which UE accesses EPS through a trusted WLAN in the present invention, Figure 3b It is a schematic diagram of a roaming home access scenario in architecture 1 in which UE accesses EPS through a trusted WLAN in the present invention, Figure 3c It is a schematic diagram of a roaming access scenario in Architecture 1 in which a UE accesses an EPS through a trusted WLAN in the present invention. In this embodiment, it mainly describes the UE supporting WLAN access and LTE access, respectively through the trusted WLAN and LTE access fusion core network architecture diagram, the network element connection interface and connection structure are as follows Figures 3a-3c shown. In the architecture of this example, the functions of the control plane and the user plane of the WLAN network are separated. Among them, the access management entity in the 3GPP network implements the management fun...

Embodiment 2

[0115]This example is based on architecture 1-1. In the roaming home access scenario, the UE attaches to the EPC through the WLAN. In this process, the AP only needs to discover and select the address of the IWF, and the AC discovery mechanism in the existing WLAN network can be used. The IWF needs to discover and select the access management entity, and the DNS / DHCP query mechanism or other discovery mechanisms can be used. Figure 4 In the roaming home access scenario of Architecture 1-1 in the present invention, the UE attaches to the EPS through a trusted WLAN, as shown in Figure 4 As shown, in this example, the attach process of the UE accessing the EPS includes the following steps:

[0116] In step 401, the UE selects a service set identifier (SSID, Service Set Identifier) ​​according to the wireless mechanism of the WLAN, and accesses the corresponding AP.

[0117] Step 402-step 404, the AP can determine the SSID it accesses according to the UE's Medium Access Control...

Embodiment 3

[0137] This embodiment is an attachment process of a user accessing an EPC through a WLAN in a roaming home access scenario in architecture 1-2. The main difference between this embodiment and Embodiment 2 is that a CAPWAP tunnel needs to be established between the access management entity and the AP, and the AP needs to discover the addresses of the IWF and the access management entity, which is equivalent to connecting the AP to two ACs at the same time , and the current AP is only connected to one AC, so the AP needs to be enhanced. Figure 5 It is the attachment flow chart of UE accessing EPS through trusted WLAN in the roaming home access scenario of architecture 1-2 in the present invention, as shown in Figure 5 As shown, in this example, the attach process of the UE accessing the EPS includes the following steps:

[0138] Step 501 is the same as step 401.

[0139] Step 502-step 504, the AP can determine the SSID it accesses according to the medium access control laye...

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Abstract

The invention discloses an integrated core network and an accessing method thereof. The integrated core network is used for accessing a trusted non-3GPP access network and a 3GPP access network; an access management entity is arranged in the 3GPP access network; an IWF is connected with the access management entity; and / or, the IWF is connected with an S-GW in the 3GPP access network; and / or, the S-GW in the 3GPP access network is connected with the access management entity; and when UE is accessed to the integrated core network through the trusted non-3GPP access network, the IWF is used for forwarding an IP address request message to the access management entity or the S-GW when receiving the IP address request message or sending a session establishment request message to the S-GW after receiving an authentication success message in the 3GPP access network. According to the invention, business and management bottlenecks due to the fact that a network has only one AC are avoided, and access control and quality of service of the integrated network are well ensured.

Description

technical field [0001] The present invention relates to fusion network technology, in particular to a fusion core network and an access method thereof. Background technique [0002] The Evolved Packet System (EPS, Evolved Packet System) of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) consists of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), mobile management Unit (MME, Mobility Management Entity), Serving Gateway (S-GW, Serving Gateway), Packet Data Network Gateway (P-GW, Packet Data Network Gateway) and Home Subscriber Server (HSS, Home Subscriber Server). figure 1 It is a network structure diagram of intercommunication between a 3GPP network and a non-3GPP network in the prior art, such as figure 1 As shown, the EPS supports intercommunication with non-3GPP systems, wherein intercommunication with non-3GPP systems is realized through S2a / b / c interfaces, and P-GW se...

Claims

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Application Information

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IPC IPC(8): H04W48/06H04W76/02
CPCH04W88/16
Inventor 刘国燕朱春晖梁爽
Owner ZTE CORP
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