4G module short message receiving and sending method of embedded system

An embedded system and short message technology, applied in the field of communication, can solve the problems of increasing the operation complexity of the application end, and achieve the effects of reducing the operation complexity, improving transmission efficiency, and simplifying the sending and receiving process

Active Publication Date: 2021-10-08
GUANGZHOU ZHIYUAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the process of sending a short message to receiving and parsing it into a visual text is centralized on the application side, which will greatly increase the operational complexity of the application side.

Method used

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  • 4G module short message receiving and sending method of embedded system
  • 4G module short message receiving and sending method of embedded system
  • 4G module short message receiving and sending method of embedded system

Examples

Experimental program
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Embodiment 1

[0050] figure 2 A 4G module short message sending and receiving method of an embedded system provided in Embodiment 1 of the present application is given, and a flow chart applied to the system layer. The 4G module short message sending and receiving method of the embedded system provided in this embodiment can be Executed by a short message sending and receiving device, the short message sending and receiving device may be realized by means of software and / or hardware, and the short message sending and receiving device may be composed of two or more physical entities, or may be composed of one physical entity. Generally speaking, the short message sending and receiving device may be a server host, a communication terminal device, and the like.

[0051] The main body of the short message sending and receiving method of the 4G module in which the short message sending and receiving device is an embedded system is taken as an example for description below. refer to figure 2 ...

Embodiment 2

[0087] On the basis of the above examples, image 3 A schematic flow diagram of a 4G module short message sending and receiving method for an embedded system provided in Embodiment 2 of the present application, applied to a 4G module. The 4G module short message sending and receiving method of the embedded system provided in the present embodiment can be carried out by the short message sending and receiving device, and this short message sending and receiving device can be realized by software and / or hardware, and this short message sending and receiving device can be two or multiple physical entities, or one physical entity. Generally speaking, the short message sending and receiving device may be a server host, a communication terminal device, and the like.

[0088] The main body of the short message sending and receiving method of the 4G module in which the short message sending and receiving device is an embedded system is taken as an example for description below. refe...

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Abstract

The embodiment of the invention discloses a 4G module short message receiving and transmitting method of an embedded system, which is applied to a system layer, and comprises the following steps: transcoding received first text information transmitted by an application layer to obtain a first data packet, and decoding the first data packet to generate a first PDU packet; judging whether the length of the first PDU unit packet exceeds a short message length threshold value or not; if yes, subpackaging and coding the first PDU unit packet into a plurality of second PDU protocol data packets, and sending the second PDU protocol data packets to a 4G module, wherein the length of the second PDU protocol data packets is smaller than or equal to the short message length threshold; and if not, encoding the first PDU unit packet to generate a first PDU protocol data packet, and sending the first PDU protocol data packet to a 4G module. The system layer transcodes, encodes and decodes the transmitted information data and then transmits and receives the text information with the application layer, so that the operation complexity of the application layer is reduced, and the short message receiving efficiency of the application layer is improved.

Description

technical field [0001] The embodiment of the present application relates to the technical field of communication, and in particular to a method for sending and receiving short messages of a 4G module of an embedded system. Background technique [0002] In the embedded system, 2G or 4G modules are often equipped to connect to the network and send and receive short messages. The communication protocol between the embedded system and the 4G module generally uses AT commands. Message sending and receiving is relatively simple, but for short messages with Chinese content, the content of the short message needs to be encoded into PDU format, and short messages with long content need to be split into multiple packets for sending. It is necessary to process the message into a common character encoding format to complete the sending and receiving of the message. Therefore, the centralized processing of a short message from sending to receiving and parsing into visual text will great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/14H04W28/06
CPCH04W4/14H04W28/065
Inventor 周立功王林福翁叶东曹文静陈扬鑫
Owner GUANGZHOU ZHIYUAN ELECTRONICS CO LTD
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