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Local IP access method and system

An access method and local technology, applied in connection management, wireless network protocols, electrical components, etc., can solve problems such as service interruption and affect user experience, and achieve the effect of avoiding service interruption and improving user experience

Inactive Publication Date: 2011-04-20
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Under the existing network architecture, when a user connects to the network, the base station will assign an IP address to the user. When the user accesses the target base station, the target base station will re-allocate the IP address to the user, which will easily cause service interruption and affect the user. to experience

Method used

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  • Local IP access method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] In this embodiment, the user attach process is described, the base station is HeNB, and the mobility management entity is MME.

[0113] Figure 4 It is a schematic diagram of the user attachment process of the local IP connection in Embodiment 1 of the present invention, such as Figure 4 As shown, in Embodiment 1, the terminal is attached to the network, and establishing a LIPA connection generally includes the following steps:

[0114] Step 401: the terminal sends an attach request message to the MME through the HeNB.

[0115] The attachment request message generally carries the user's willingness: local IP access and use of mobile IP.

[0116] Step 402: the MME initiates authentication of the user, and verifies the legal identity of the user.

[0117] During this process, the HSS needs to generate relevant authentication vectors and send them to the MME, and the user needs to provide a valid identity. This step is optional.

[0118] Step 403: When the MME has no...

Embodiment 2

[0135] Figure 5 It is a schematic diagram of the user switching process of the local IP connection in Embodiment 2 of the present invention, such as Figure 5 As shown, the user switching process of the local IP connection in Embodiment 2 generally includes the following steps:

[0136] Step 501: The terminal establishes a LIPA connection for accessing an external network through a source base station.

[0137] Here, the specific access process is the same as that described in Embodiment 1.

[0138] Step 502: The source base station receives the radio signal measurement report provided by the terminal, decides to handover the user to the target base station, and sends a handover request to the source mobility management entity.

[0139] The handover request generally carries the identifier of the target base station and an indication of the allocated care-of address. In this embodiment, the mobility management entities are all MMEs.

[0140] Step 503: The source mobility ...

Embodiment 3

[0152] Figure 6 It is a schematic diagram of the local IP connection process flow diagram for the deactivation of the user of the local IP connection in Embodiment 3 of the present invention, such as Figure 6 As shown, the user deactivation of the local IP connection in Embodiment 3 of the present invention generally includes the following steps:

[0153] Step 601: The terminal decides to deactivate the local IP connection, and sends a binding update message to the L-HA, which carries a lifetime (lifetime) of zero.

[0154] Step 602: The L-HA deletes the binding relationship between the user's care-of address and the home address, and sends a binding confirmation message to the terminal.

[0155] Step 603: The terminal or L-HA initiates and deletes the security association.

[0156] This step is optional. If you do not delete in this process, you can wait for the SA lifetime to expire, and then delete the terminals and L-HA locally.

[0157] Step 604: The terminal sends ...

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Abstract

The invention discloses a local internet protocol (IP) access method, which comprises that: a terminal sends an attach request message to a mobility management entity through a base station, and the mobility management entity sends an attach receiving message to the base station and indicates the base station to allocate care-of addresses for users; the base station allocates the care-of addresses for the users and sends the allocated care-of addresses and the attach receiving message to the terminal together; the terminal receives the message sent by the base station, acquires an IP address of a local home agent (L-HA) and initiates and establishes security association with the L-HA; and the terminal informs the L-HA of binding update. The invention also correspondingly discloses a local IP access system. The local IP access is realized by utilizing a mobile IP protocol, and a binding relationship between the care-of addresses of the terminal with a home address is established in the L-HA, namely the users communicate with external through the L-HA, so the service interruption caused by switching under different base stations for the users can be avoided and the user experience is improved.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a local IP access method and system. Background technique [0002] The 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) Evolved Packet System (Evolved Packet System, EPS) consists of Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN), Mobility Management Entity (MME), Serving Gateway (Serving Gateway, S-GW), Packet Data Network Gateway (Packet Data Network Gateway, P-GW or PDNGW), Home Subscriber Server (Home Subscriber Server, HSS), Composed of Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF) entities and other supporting nodes. figure 1 It is a schematic diagram of mobile communication network connection in the prior art, such as figure 1 As shown, the mobile communication network in the prior art includes a base station subsystem, a mobility manage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/08H04W8/26H04W76/02H04W80/04
Inventor 朱春晖
Owner GLOBAL INNOVATION AGGREGATORS LLC
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