Wireless downlink communication method with low power consumption and high real-time performance

A communication method and real-time technology, applied in wireless communication, advanced technology, energy consumption reduction, etc., can solve problems such as insufficient system stability, difficult base station deployment, and high system complexity, and achieve low complexity and easy deployment Network implementation, high stability effect

Active Publication Date: 2020-05-08
SUZHOU XUNXI ELECTRONICS SCI & TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] 1), all base stations must be equipped with GPS communication modules, the system complexity is high, and the cost of base stations is high;
[0006] 2) All base stations must have a good GPS signal, and base station deployment is difficult;
[0007] 3) When a base station in the system loses synchronization, it will have a great impact on the system, and the system stability is not high enough

Method used

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  • Wireless downlink communication method with low power consumption and high real-time performance
  • Wireless downlink communication method with low power consumption and high real-time performance
  • Wireless downlink communication method with low power consumption and high real-time performance

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Embodiment Construction

[0059] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0060] Such as figure 2 As shown, a wireless downlink communication method with low power consumption and high real-time performance is used for a terminal, and the wireless downlink communication method includes the following steps:

[0061] Guided broadcast within the search range of the terminal, and determine the base station to communicate with according to the guided broadcast;

[0062] The terminal acquires the sending time point of the next time-synchronized broadcast from the guided broadcast, and when the sending time point arrives, opens an acceptance window, searches for the time-synchronized broadcast, and...

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Abstract

The invention discloses a wireless downlink communication method with low power consumption and high real-time performance, which comprises terminals and at least two base stations for broadcasting guide broadcast to each terminal and executing wireless communication with the terminals, wherein the terminal searches for the guide broadcast in a range, and determines the base station communicatingwith the terminal according to the guide broadcast; and the sending time point of the next time synchronization broadcast is obtained from the guide broadcast; at the arrival of the sending time point, a receiving window is opened, the time synchronization broadcast is searched, if a response is received, a base station timestamp in the time synchronization broadcast is extracted and set to be a timestamp of the terminal, the synchronization with the base station is achieved, a downlink data communication window is negotiated, and downlink communication with high real-time performance can be achieved. The method is high in reliability, and the stability is higher than that of a whole-network synchronization scheme.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wireless downlink communication method with low power consumption and high real-time performance. Background technique [0002] In the traditional wireless communication system of the Internet of Things, the terminal regularly reports data to the base station, and the base station replies. The base station is usually powered by an external power supply, and is always in a receiving state, and can respond to the uplink data of the terminal at any time. The terminal is often a battery-powered device, which requires relatively high power consumption. After sending data, only a small window will be opened to receive the response. After the window ends, it will be placed in a sleep state and stop receiving data. Therefore, if the background or the base station wants to send downlink data to the terminal, it must wait for the terminal to report and send it to the term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/001Y02D30/70
Inventor 胡月舟肖波张宇袁协聂敏林王涛
Owner SUZHOU XUNXI ELECTRONICS SCI & TECH CO LTD
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