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Method and access gateway for implementing user access holding in WiMAX system

An access gateway and access method technology, applied in the field of communication, can solve problems such as interruption of MS data services, and achieve the effects of speeding up access, reducing access time, and maintaining continuity

Active Publication Date: 2010-09-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For another example, when the MS handover fails, the BS initiates the release of the MS, that is, the BS will notify the AGW to request the MS to go offline. At this time, the AGW deletes the MS information. When the MS goes online again, the AGW does not have the MS information. If the MS wants to continue When using the service, it is necessary to re-initiate the access, and the AGW or HA will obtain the IP address for the MS again, which will also cause the interruption of the MS data service

Method used

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  • Method and access gateway for implementing user access holding in WiMAX system
  • Method and access gateway for implementing user access holding in WiMAX system
  • Method and access gateway for implementing user access holding in WiMAX system

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0048] Figure 4 The overall flowchart of the method of the present invention; Specifically comprise the following steps:

[0049] Step 401: The MS obtains an IP address and connection information through the AGW, and then accesses the WiMAX system for service data transmission;

[0050] There are several ways for MS to obtain an IP address: AGW assumes DHCP Proxy, when MS uses simple IP access, AGW assigns an IP address for MS; AGW undertakes DHCP Relay, and MS uses simple IP access mode, or PMIP access mode, the AGW obtains an IP address for the MS through the DHCP server; when the MS accesses through the PMIP or CMIP mode, the AGW needs to confirm or obtain an IP address for the MS through interaction with the HA.

[0051] Step 402: The AGW of the WiMAX system finds that the MS is disconnected, that is, goes offline, and saves t...

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Abstract

The invention relates to a method for realizing user access keeping in a WiMAX system and an access gateway for realizing the method. The method comprises: keeping obtained IP addresses and connection information before a user terminal disconnects connection when the user terminal which is transmitting service data disconnects connection by the access gateway, wherein the connection information comprises network configuration information, sending stored IP addresses and network configuration information of the user terminal to the user terminal by the access gateway when the user terminal applies for re-connecting the access gateway with an accessing mode same with that before disconnection in prearranged time, and adopting received IP addresses and the network configuration information to continue transmitting service data by the user terminal. The method can reduce the accessing time and can keep the continuity of upper layer services when the user terminal is reconnected.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a method for realizing user access maintenance in a WiMAX system and an access gateway (ASN-GateWay, ASN-GW, AGW for short) used to realize the method. Background technique [0002] Such as figure 1 As shown (the solid line indicates the connection of the bearer plane, and the dotted line indicates the connection of the control plane), the existing WiMAX system generally consists of three parts: user terminal (MS), access service network (Access Service Network, ASN) and connection service Network (Connect Service Network, CSN). An ASN consists of one or more base stations (Base Station, BS) and one or more AGWs, providing a complete set of wireless access network functions for MSs connected to WiMAX. The operators who manage ASN are called network access operators. Provider (NetworkAccess Point, NAP), ASN can be shared by multiple CSNs (or multiple network service provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/02H04W12/06H04W84/10H04W88/16
Inventor 许秀莉
Owner ZTE CORP
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