Method for releasing user address of WiMAX network
A user address and network technology, which is applied in network data management, wireless communication, transmission system, etc., can solve the problems that the access service network cannot notify the mobile station to release the address, waste of address resources, and address occupation, etc.
Inactive Publication Date: 2012-03-07
ZTE CORP
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[0021] When the Home Agent (HA) actively requests to terminate the Proxy Mobile IP (PMIP) registration, the notification message is delivered to the Access Service Network (ASN), and the Access Service Network (ASN) releases the Proxy Mobile IP (PMIP) session. In the Dynamic Host Configuration Protocol relay (DHCP Relay) mode, when the Dynamic Host Configuration Server (DHCP Server) does not receive the release request from the Mobile Station (MS), the IP address will not be released, and the Access Service Network (ASN) will not be released. Unable to notify mobile station (MS) to release address immediately
Therefore, according to the NWG agreement, the WiMAX access network needs to wait until the lease period of the address on the DHCP Server (DHCP Server) expires before releasing and reusing the IP address. Usually, the Dynamic Host Configuration Server (DHCP Server) assigns The lease period for this address is about 30 minutes, and the most extreme case is unlimited time. Therefore, this address will be occupied for a long time and cannot be released, resulting in a waste of address resources and affecting subsequent network access, which may easily lead to insufficient resources. , resulting in failure
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[0036] The idea of the present invention is that the access service network (ASN) sends the dynamic host configuration protocol release (DHCP Release) message on behalf of the mobile station (MS), and the access service network (ASN) has the identity information of the mobile station (MS), and knows the The IP address occupied by the station (MS), so a correct dynamic host configuration protocol release (DHCP Release) message can be constructed.
[0037] Combine below figure 2 The present invention is described in detail.
[0038] figure 2 In the proxy mobile IP mode, when the home agent actively releases the mobile IP registration, the access service network immediately releases the IP address on behalf of the mobile station, and notifies the mobile station of the detailed process description of address release.
[0039] Step 201: the home agent (HA) actively terminates the proxy mobile IP (PMIP) registration;
[0040] Step 202: the access service network (ASN) sends a...
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The invention provides a method for releasing a user address by WiMAX network. When receiving a registration stop request, an access service network acting for a moving stage transmits a dynamic host configuration protocol releasing message to a dynamic host configuration server and releases the IP address occupied by a terminal, and the access service network requires the moving stage to inform about the address reletting and informs the moving stage that the address is released if the reletting is refused. The access service network immediately informs the dynamic host configuration server to release the IP address resources, so as to well solve the problem of IP address resource waste.
Description
technical field [0001] The present invention relates to a WiMAX access system, and more specifically relates to the release of user addresses. Background technique [0002] First explain the acronyms and terms involved in this article: [0003] WiMAX: (Worldwide Interoperability for Microwave Access Forum) Microwave Access Global Collaboration Forum, a standard collaborative research organization for the IEEE 802.16 protocol. IEEE802.16d, the wireless access system described by the 802.1e protocol family, uses WiMAX to name it. [0004] NWG: (Network Work Group) Network Working Group, specifically refers to the WiMAX Forum Network Working Group, and the WiMAX network side protocol is named after NWG. [0005] ASN: (Access Service Network) access service network; [0006] CSN: (Connectivity Service Network) connectivity service network; [0007] DHCP: (Dynamic Host Configuration Protocol) dynamic host configuration protocol; [0008] DHCP Proxy: Dynamic Host Configuratio...
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IPC IPC(8): H04L29/12H04W8/26
Inventor 陈东华
Owner ZTE CORP