Route repair method and device

A repair method and routing technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of increasing control overhead and repair delay

Inactive Publication Date: 2018-02-02
SHENZHEN TINNO WIRELESS TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of this, the embodiment of the present invention provides a route repair method and device, which solves the problem that the existing route repair method will increase too much control overhead and repair delay

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Embodiment Construction

[0093] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0094] Figure 2a and Figure 2b Each is a schematic flowchart of a route restoration method provided by an embodiment of the present invention. The route restoration method is applicable to a local node in a network topology. The network topology may be an LLN network, and in the LLN network, except for the root node, each node has the same physical structure and properties. All nodes in the LLN network are static or quasi-static. Each node in th...

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Abstract

The embodiment of the invention provides a route repair method and device, and solves the problem of excessive control overhead and repair delay in the existing routing repair method. The route repairmethod is applicable to one local node in a network topology, and comprises the following steps: determining a new parent node according to a scheduled rule; generating a route local repair message,and sending the route local repair message to the new parent node, wherein the route local repair message comprises a fault address list, and the fault address list at least comprises the address of alocal node; or when the route local repair message that a destination address of a network layer is the address of the local node is received, establishing or updating a downlink routing of a fault node included in the fault address list, and forwarding the route local repair message to a root node along an original uplink routing.

Description

technical field [0001] The present invention relates to the technical field of Low Power and Lossy Networks (LLN), in particular to a route restoration method and device. Background technique [0002] A low-power lossy network (LLN network) is a multi-hop network (usually referred to as a wireless network) composed of nodes with low power consumption, and the links between nodes are not guaranteed to be reliable. The LLN network has the characteristics of no need for infrastructure support, low power consumption of nodes, and link reliability affected by the environment. In the LLN network, all nodes have equal logical status, have the functions of host and router at the same time, and can forward data. They realize data communication with other adjacent or non-adjacent nodes through cooperation. There are three main communication modes: point-to-point (Point-to-Point, P2P), point-to-multipoint (Point-to-Multi-Point, P2MP), multipoint-to-point (Multi-Point-to-Point, MP2P)....

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Application Information

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IPC IPC(8): H04L12/703H04L12/741H04L12/761H04L45/28H04L45/16H04L45/74
CPCH04L45/16H04L45/28H04L45/745
Inventor 任智田洁丽葛理威刘江兵王斌林文炭
Owner SHENZHEN TINNO WIRELESS TECH
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