Integration isomerization wireless network and communication method

A heterogeneous wireless network and wireless wide area network technology, applied in the field of mobile communication, can solve the problem that multi-mode mobile terminals cannot achieve vertical handover, and achieve the effect of reducing link load

Inactive Publication Date: 2008-07-30
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0012] In order to overcome the defect in the prior art that multi-mode mobile terminals cannot realize vertical switching in IPv4-based wireless networks containing NAT devices or firewalls, the present invention provides an integrated heterogeneous wireless network and its communication method

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  • Integration isomerization wireless network and communication method
  • Integration isomerization wireless network and communication method
  • Integration isomerization wireless network and communication method

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Embodiment Construction

[0054] An integrated heterogeneous wireless network and a communication method thereof provided by the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0055] Currently, there are two tunneling mechanisms that penetrate NAT devices to interconnect IPv6 terminals: Teredo (RFC 4380) and Silkroad (draft-liumin-v6ops-silkroad-03). An IPv6 / IPv4 dual-stack host can use its own IPv4 private address to traverse the IPv4 network and establish connections with other IPv6 hosts.

[0056] The Teredo tunnel mechanism can traverse all NAT types except Symmetric NAT (Symmetric NAT), but it can only assign temporary IPv6 addresses to NAT users. Teredo's IPv6 address is embedded with the Teredo server's IPv4 address, as well as the client's mapped IPv4 address and port. Therefore, its IPv6 address will change with the change of the embedded IPv4 address and port. However, IPv4 address allocation and mapping in WWAN ar...

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Abstract

The invention provides a concordant heterogeneous wireless network and a communication method thereof, a Silkroad access router is positioned on the boundary of a IPv4 Internet and a IPv6 network; a home agent equipment is a wireless WAN service based on the IPv4, and positioned in the network based on the IPv6; a multi-mode mobile terminal passes through the wireless WAN based on IPv4 via a Silkroad tunnel mechanism, and establishes a tunnel with the IPv6 network; the multi-mode mobile terminal sends a corresponding route notice to a corresponding tunnel interface according to tunnel parameters, and realizes the communication with the IPv6 network. Through the invention, a MIPv6 protocol can be executed in the IPv4 wireless WAN including a network address conversion equipment or a fire wall, in order to provide an uniform seamless mobile environment and a complete MIPv6 service function for the multi-mode mobile terminal, and therefore, the link load of the wireless WAN is greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically, the present invention relates to an integrated heterogeneous wireless network and a communication method thereof. Background technique [0002] At present, the development of global communication technology is changing with each passing day, and the development speed and application fields of wireless communication technology have surpassed fixed communication technology. With the rapid development of wireless communication technology, various wireless communication networks have highlighted their own advantages, but there is no single network that can undertake the seamless coverage and broadband required by the development of wireless networks. At the same time, no network alone can meet mobile users' wireless access requirements for any time, any place, and any service, and provide a high data transmission rate. [0003] Wireless Wide Area Network (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/28H04W40/02
Inventor 舒童刘敏宋翊麟周安福吉勋
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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