Network mobility management method of internet protocol version 6 over low power wireless personal area network (6LoWPAN)

Abstract

The invention relates to the network technology. In order to support moving of a mobile subnet of a small scale or a medium scale, the technical scheme includes that a network mobility management method of an internet protocol version 6 over low power wireless personal area network (6LoWPAN) includes the following steps that: (1) an entity (an agent mobile router) is disposed on a router position on the network edge of the 6LoWPAN; (2) a mobile access anchor point entity is added in a communication frame; (3) a mobile network moves to a new 6LoWPAN domain and then registers an obtained new care-of address, a home address and a network prefix with a private mobile radio (PMR); (4) the PMR sends an own care-of address and associated information of the network prefix of the mobile network to a domain name server (DNS) of a home domain where the mobile network is located, and sends the associated information to a home agent of the mobile network; and (5) a mobile network node and an objective communication node transmit data through transshipment of the PMR of a foreign domain where the mobile network is located, and achieve mutual two way communications. The network mobility management method of the 6LoWPAN is mainly used for network communications.

Description

technical field [0001] The present invention relates to the network technology for 6LoWPAN, specifically, the network mobility management technology for 6LoWPAN. Background technique [0002] Low-rate wireless personal area network (LR-WPAN), which integrates network technology, embedded technology and sensor technology, is a network designed for short-distance, low-speed, low-power wireless communication, and can be widely used in smart home appliances and industrial control and other fields. IETF formally established the IPv6over LR-WPAN (6LoWPAN for short) working group in November 2004, and began to formulate an IPv6-based low-speed wireless personal area network standard, namely IPv6over IEEE 802.15.4, aiming to introduce IPv6 into IEEE 802.15.4 It is the bottom standard wireless personal area network, and its emergence has promoted the development of short-distance, low-complexity, low-speed, low-power wireless personal area network. IEEE 802.15.4 is a wireless stand...

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Problems solved by technology

[0018] (1) The data message must go through at least one home agent and the corresponding tunnel to reach the destination node. The triangular and multi-angle routing communication mode makes the routing path of the data message not the best path. It is still necessary to further optimize the routing to reduce the routing cost. Shorten routing time; (2) Establish routing with the help of additional command messages, which increases the cost of establishing routing and increases network power consumption; (3) Additional network equipment or software support is required, increasing the cost of network mobility

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