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Networking method of ad hoc network

An ad hoc network and networking technology, applied in the field of communication, can solve the problems that the central node cannot obtain the communication situation, the PAN coordinator cannot sense in time, and the routing information cannot be obtained quickly, so as to improve the communication processing capacity, improve the communication efficiency, The effect of meeting communication needs

Inactive Publication Date: 2020-04-28
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

[0004] The existing initial network construction scheme of the ad hoc network has the following disadvantages: the central node (that is, the PAN coordinator) cannot obtain the communication status between adjacent nodes in the network, so it cannot quickly obtain routing information. When a problem occurs, the PAN coordinator cannot detect it in time, resulting in inflexible communication within the network

Method used

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Examples

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Embodiment Construction

[0030] As mentioned in the background art, in the ad hoc network system in the prior art, when a node in the network has a problem, the ad hoc network cannot respond flexibly.

[0031] In the Zigbee network, only the coordinator (coordinator) device can establish a network, and in the process of establishing a network, all implementation processes are realized through primitives. See figure 1 , figure 1 A schematic diagram of a new Zigbee network in the prior art is provided.

[0032]First, the coordinator device invokes a network construction request (that is, the NLME_NETWORK_FORMATION.Request primitive shown in the figure) at the Zigbee coordinator application layer (hereinafter referred to as the application layer), and the Zigbee coordinator network layer (hereinafter referred to as the network layer) receives this original In other words, the Zigbee coordinator media access control (Media Access Control, MAC for short) layer (hereinafter referred to as the MAC layer) i...

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Abstract

A networking method of an ad hoc network comprises the following steps: step A, in a networking stage, a PAN coordinator broadcasts a networking notice to adjacent nodes of the PAN coordinator, receives a network access request returned by each adjacent node in response to the networking notice, and selects part or all of nodes from nodes allowed to access the network as current relay nodes; stepB, the current relay node broadcasts a networking notification to the adjacent nodes, receives network access requests returned by the adjacent nodes in response to the networking notification, and sends the network access requests of the adjacent nodes to a PAN coordinator; step C, the PAN coordinator receives the network access request of each neighbor node of the current relay node to determinea newly added network access node, and selects the current relay node from the newly added network access nodes; and step D, the step B and the step C are repeated until a preset networking completion condition is met, and networking is completed. According to the networking method of the ad-hoc network, routing can be flexibly planned based on the communication condition among the nodes in the ad-hoc network during networking.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a network construction method of an ad hoc network. Background technique [0002] At present, the mainstream ad hoc network system is the Zigbee system based on the 802.15.4 protocol of the Institute of Electrical and Electronics Engineers (IEEE). The Zigbee network mainly includes the following three types of equipment: terminal equipment, A coordinator and a personal area network (PAN for short) coordinator. The main functions of each device are as follows: end device, end device can include full function device (Full Function Device, referred to as FFD) and reduced function device Reduced Function Device, referred to as RFD), only has simple sending and receiving functions, and cannot forward packets; Functional device (FFD): usually synchronizes with surrounding nodes by sending beacons, and has the function of forwarding packets; PAN coordinator: is the ...

Claims

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Application Information

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IPC IPC(8): H04W40/24H04W40/32H04W40/02H04W40/04H04W84/18
CPCH04W40/02H04W40/04H04W40/246H04W40/32H04W84/18
Inventor 董宇刘文明冷欣
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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