Method for distribution of IP address in wideband wireless city area network

An IP address, broadband wireless technology, applied to electrical components, transmission systems, etc., can solve problems such as undefined IP address allocation methods

Active Publication Date: 2006-06-14
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In the wireless metropolitan area network, after the initial ranging, basic capability negotiation, registration and other processes, the mobile station needs to request an IP address from the base station. However, the 802.16 standard does not define the IP address allocation method, and the mobile station in the wireless metropolitan area network The station connects to the base stat...

Method used

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  • Method for distribution of IP address in wideband wireless city area network
  • Method for distribution of IP address in wideband wireless city area network
  • Method for distribution of IP address in wideband wireless city area network

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Embodiment Construction

[0084] A method for allocating IP addresses in a broadband wireless metropolitan area network, wherein the processing flow of the mobile station MS is as follows Figure 5 As shown, the processing steps of each event are as follows:

[0085] S5.1: The mobile station is powered on and initialized;

[0086] S5.2: The mobile station sends an IP address request message IP_Request to the base station;

[0087] S5.3: the mobile station starts the message retransmission timer T0;

[0088] S5.4: Determine whether the timer has timed out, if it times out, go to S5.2, otherwise, go to S5.5;

[0089] S5.5: the mobile station receives the IP address response message IP_Response sent by the base station;

[0090] S5.6: cancel the message retransmission timer T0;

[0091] S5.7: Check the successful identification item Result in the IP_Response message;

[0092] S5.8: If the successful identification item Result is equal to 1, it indicates that the IP address allocation is successful, a...

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Abstract

This invention relates to a distribution method for a base station IP address, in which, the DHCP server of a core network is divided into a hierarchical structure based on the geographical positions, each DHCP server in a MAN can manage several radio base stations, which are taken as the broker for assigning and releasing IP addresses between the mobile station and DHCP server, at the beginning of the core net, a lower level DHSP server can require to the upper level server based on the positions of its managed base stations to get the corresponding IP address action region dynamically, at the beginning of logging-on to the net, the mobile station asks for assigning IP addresses to the base station, which negotiates with a DHCP server of the MAN sub-net to assign the IP addresses and confirms them not conflict and returns back the new IP addresses to the mobile station.

Description

technical field [0001] The invention belongs to the technical field of broadband wireless metropolitan area network, in particular to a method for allocating IP addresses in the broadband wireless metropolitan area network. Background technique [0002] Broadband wireless metropolitan area network (IEEE 802.16Wireless MAN) is a broadband network that can provide high-speed wireless access within the metropolitan area. The IEEE 802.16 standard defines the air interface specification for broadband wireless access. Reference [1] Carl Eklund, Roger B. Marks, "IEEE Standard 802.16: A Technical Overview of the WirelessMAN TM Air Interface for Broadband Wireless Access", IEEE C802.16-02 / 05, 2002. [0003] Dynamic Host Configuration Protocol (DHCP) is a network protocol that automatically assigns and reuses network addresses and other configuration information. Reference [2] R. Droms, "RFC 2131 - Dynamic Host Configuration Protocol", IETF, March 1997. DHCPv6 (Dynamic Host Confi...

Claims

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Application Information

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IPC IPC(8): H04L29/12
Inventor 庞迪周继华胡金龙石晶林
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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