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TDMA time slot division method based on beacon indication

A time slot division and time slot technology, applied in wireless communication, emergency/dangerous communication services, advanced technology, etc., to achieve the effects of reducing communication delay, improving communication reliability, and high practical value

Pending Publication Date: 2021-11-19
QINGDAO TOPSCOMM COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not a simple matter to design an excellent TDMA time slot division method to meet the performance requirements of various aspects. Often, when one index is met, the other index is reduced.

Method used

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  • TDMA time slot division method based on beacon indication
  • TDMA time slot division method based on beacon indication
  • TDMA time slot division method based on beacon indication

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Embodiment Construction

[0018] 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 conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] Such as figure 1 As shown in , the entire time dimension is divided into unit time slot combinations. Each unit time slot combination contains several unit time slots. The specific number should be dynamically adjusted according to the total number of network devices. When more single type When the number of nodes is less than 8, there is only one unit slot in the slot combination. By analogy, when the number of nodes reaches the full capacity (128), the unit time slot also reaches a maximum of 8.

[0020] Such as figure 2 As shown, the unit time slot is composed of five parts, namely, b...

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Abstract

The invention discloses a TDMA time slot division method based on beacon indication, which can enable a wireless communication system to achieve larger network capacity and lower communication delay under the condition of ensuring low power consumption. The time slot planning comprises the following parts: a beacon time slot, an inspection reporting time slot, a competition reporting time slot, a command issuing time slot and a state reporting time slot, wherein different time slots are responsible for different communication scenes. Except for the beacon time slot, each time slot is subdivided into a plurality of small time slots, and each small time slot is completely occupied by a certain node so as to transmit and receive communication data. In addition, a rule is also designed for dynamic matching and conflict processing between the nodes and the small time slots.

Description

technical field [0001] The invention relates to the field of wireless sensor network communication technology, in particular to a method for dividing time slots based on time division multiple access (TDMA). Background technique [0002] At present, with the development of Internet of Things technology, wireless communication technology has been widely used, such as smart home, smart city, smart fire protection and other fields. In the medium access (MAC) layer of the wireless communication system, there are usually two schemes, one is a scheme based on carrier sense CSMA, and the other is a scheme of time division multiple access (TDMA). These two solutions have different advantages and disadvantages. As for which solution to choose, it is often weighed according to the actual usage scenario and the function of the RF chip. [0003] Low power consumption, large capacity, and fast response are important indicators to measure the reliability of a wireless communication syste...

Claims

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Application Information

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IPC IPC(8): H04W4/90H04W52/02H04W72/04
CPCH04W4/90H04W52/0248H04W72/0446Y02D30/70
Inventor 王建华王运涛王伟唐晓磊
Owner QINGDAO TOPSCOMM COMM