A method for channel time division multiplexing in autonomous network system

A time division multiplexing, autonomous network technology, applied in wireless communication, electrical components, etc., can solve the problems of high CSMA aggregation risk, waste of TDMA time slots, etc., to avoid aggregation effect, avoid disorderly competition, and ensure the effect of scheduling time

Active Publication Date: 2021-07-09
北京中宸微电子有限公司
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Problems solved by technology

But the problem with this method is that when no designated node is in TDMA, the entire TDMA time slot is wasted
At the same time, due to the compressed range of CSMA, the aggregation risk of CSMA is higher

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  • A method for channel time division multiplexing in autonomous network system
  • A method for channel time division multiplexing in autonomous network system
  • A method for channel time division multiplexing in autonomous network system

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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0051] see image 3 A typical time division multiplexing principle is: divide the channel into several time slices according to time, and use them for multiple signals in turn. Each time slice is occupied by a multiplexed signal alone, and multiple digital signals can be transmitted and arrived as required within a specified time, thus realizing the transmission of multiple digital signals on one physical channel.

[00...

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Abstract

The invention relates to a method for channel time division multiplexing in an autonomous network system. Core nodes perform broadcast transmission in the first time slice, and non-core nodes obtain exclusive transmission time slices; when non-core nodes need to use time slices, determine whether they The core node schedules to send data in this time slot, if yes, start to transmit data in this time slot; if not, use CSMA to transmit data. The present invention integrates TDMA and CSMA with a brand-new solution to ensure that the network maintenance signaling of the core node does not need to listen and wait, and directly uses the specified time slice, which can ensure that the signaling reaches any node in time. The present invention uses the priority of small packet transmission High performance guarantees the priority order of channel utilization and avoids disorderly competition. The channel is used as a CSMA rule when it is not scheduled to ensure that channel resources will not be idle due to idleness of the owner. It is used as TDMA when high real-time requirements are required, and the scheduling time is guaranteed to be controllable.

Description

technical field [0001] The invention relates to the technical field of ad hoc network communication multiplexing methods, in particular to a method for time division multiplexing of channels of an autonomous network system. Background technique [0002] Currently, the same-frequency channel multiplexing method commonly used is basically TDMA or CSMA. [0003] The TDMA method is mostly used in a star network with a central node, which is divided into multiple continuous transmission time slots according to time, and each time slot is allocated to a designated user by the administrator. This type of method has high channel utilization efficiency when there are multiple users and the transmission length is fixed. When the mesh network appears, the number of users on the same frequency channel decreases, and the transmission length is uncertain. If TDMA is used for data transmission, there will be a lot of waste in the channel. The waste lies in the need for signaling schedulin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/0816
Inventor 李桂林童炜
Owner 北京中宸微电子有限公司
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