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Method, system and apparatus for data sending

A data sending method and sending technology, applied in the field of communication, can solve problems such as long time and low timeliness

Active Publication Date: 2014-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it takes a long time to receive data from sending data, and the timeliness is low

Method used

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  • Method, system and apparatus for data sending
  • Method, system and apparatus for data sending

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A data sending method, the flow chart is as follows figure 1 shown, including:

[0048] Step 101, the MAC layer of the first node sends a channel information request command (channel information request, CIReq), the channel information request command includes the address information of the second node, and requests to obtain the information of the main channel where the second node is located;

[0049] The channel information request command specifically includes the following information elements: MAC layer header (MHR fields), command frame identifier (Command Frame Identifier) ​​and requested node address (intended address), where the MAC layer header needs to indicate that the channel is sent The source node and destination node of the information request command; the command frame identifier indicates the type of command, if it is 0x10, it means that the command is a request command, if it is 0x11, it means that the command is a reply command; the channel informat...

Embodiment 2

[0066] A data sending method, the flow chart is as follows figure 2 shown, including:

[0067] Step 201, the MAC layer of the first node sends a channel information request command, the channel information request command includes the address information of the second node, and requests to obtain the information of the main channel where the second node is located;

[0068] It can be understood that the first node may unicast the channel information request command to the second node; or unicast to nodes other than the second node, or broadcast to nodes within a hop range of the first node.

[0069] Step 202, the second node receives the channel information request command, compares the address information of the second node contained therein with the address information of the second node itself, and if they match, execute step 203;

[0070] Step 203, the second node adds the information of the main channel where it is located and / or the information of the channel where the...

Embodiment 3

[0074] A data sending method, the flow chart is as follows image 3 shown, including:

[0075] Step 301, the MAC layer of the first node sends a channel information request command, the channel information request command includes the address information of the second node, and requests to obtain the information of the main channel where the second node is located;

[0076] It can be understood that the first node may unicast the channel information request command to the second node; or unicast to nodes other than the second node, or broadcast to nodes within a hop range of the first node.

[0077] Step 302, the receiving node receives the channel information request command, compares the address information of the second node contained therein with the address information of the receiving node itself, and if they do not match, executes step 303;

[0078] Step 303, the receiving node judges whether the locally stored node information contains the information of the second no...

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Abstract

The embodiments of the present invention disclose a data transmission method, system and device, and are applied to the communication technology field. The data transmission method in the embodiments of the present invention comprises: a first node transmits on its own initiative a channel information request command to a second node or other nodes, and requests to obtain the information of the channel on which the second node lies; when receiving a channel information reply command including the information of the primary channel and / or current channel on which the second node lies, the first node transmits data to the second node according to the received information of the channel on which the second node lies. In this manner, while the first node transmits data to the second node, if the second node switches to other channels without notifying the first node in time, the first node can request on its own initiative to obtain the channel information of the second node, and thereby the time for the process of transmitting data to the second node at the first node is reduced, and the timeliness of data transmission is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data sending method, system and equipment. Background technique [0002] In the adaptive multi-channel system of the network, when each node joins the network, it selects a main channel according to a certain channel selection criterion, and then periodically sends a multi-channel notification command (multi_channel hello command) to within a hop according to a certain rule. Nodes in other channels are used to notify other nodes of their own main channel information; and when a node wants to send data to nodes in other channels, it needs to jump to the main channel where the receiving node is to send. [0003] When the first node switches to the channel where the second node is located and sends data to the second node, the following situations may occur: the second node is temporarily not in the main channel where it is located; or the second node has switched t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/70H04L12/54
CPCH04L12/56
Inventor 杨晖刘永俊
Owner HUAWEI TECH CO LTD
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