A base station synchronization method and device

A base station synchronization and base station technology, applied in the field of communication, can solve problems such as increasing data transmission costs, interference, and affecting time synchronization of base station systems

Active Publication Date: 2019-04-30
ALIBABA GRP HLDG LTD
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Problems solved by technology

But in this way, the base station needs to be equipped with an additional GPS, which will increase the cost of data transmission; and the signal of the GPS is also easily restricted by the environment, such as being blocked by buildings or trees, weather interference, etc., thus affecting each base station System time synchronization between

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  • A base station synchronization method and device
  • A base station synchronization method and device
  • A base station synchronization method and device

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Embodiment Construction

[0238] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0239] The LoRa network consists of terminal nodes, base station nodes and servers. The terminal has the ability to connect to the LoRa network and access the LoRa network. According to the different application scenarios deployed by the LoRa network, the terminal may include different electronic devices. For example, when the LoRa network is applied to city management, the terminal may include a smart meter; when the LoRa network is applied to a digital home In this case, the terminal may include various smart home appliances and the like.

[0240] The base station, also known as a gateway or a concentrator in the LoRa network, has the function of wireless connection aggregation, including the terminal...

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Abstract

The embodiment of the invention provides a base station synchronization method and device. The method comprises the steps that a server determines a first base station; The server receives a synchronous response frame sent by the second base station; Wherein the synchronous response frame comprises a sending timestamp for the first base station to send the synchronous request frame and a receivingtimestamp for the second base station to receive the synchronous request frame; The server calculates a first system time difference between the first base station and reference time and a second system time difference between the second base station and the reference time according to the sending timestamp and the receiving timestamp of the synchronization request frame; The server sends the first system time difference to the corresponding first base station, and sends the second system time difference to the corresponding second base station; Wherein the first base station is used for performing time adjustment according to the corresponding first system time difference; And the second base station is used for performing time adjustment according to the corresponding second system timedifference. In the embodiment of the invention, each base station in the whole network can realize the synchronization with the reference time according to the corresponding system time difference.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a base station synchronization method and a base station synchronization device. Background technique [0002] The Internet of Things technology is the third information technology revolution after computers and the Internet. It has the advantages of real-time and interactivity, and has been widely used in many fields such as urban management, digital home, positioning and navigation, logistics management, and security systems. Among them, LoRa is an ultra-long-distance transmission scheme based on spread spectrum technology in the Internet of Things, which has the characteristics of long transmission distance, low power consumption, multi-node and low cost. [0003] In the existing data transmission method, the LoRa network usually includes terminals, base stations and servers. [0004] For a terminal in Class B mode, the base station periodically downlinks...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00H04J3/06
CPCH04J3/0638H04J3/0661H04W56/001H04W56/003H04J3/06H04W56/00
Inventor 陶震
Owner ALIBABA GRP HLDG LTD
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