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Methods and devices for sending and receiving short message, and short message sending and receiving system

A sending method and short message technology, which is applied in the field of communication, can solve problems such as the failure to send short messages normally, and achieve the effects of ensuring normal implementation, fast speed, and strong anti-interference ability

Active Publication Date: 2012-09-26
SHANGHAI CHEYIN NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a short message sending method and a short message sending system, to solve the problem that the short message cannot be sent normally when the short message channel breaks down in the prior art

Method used

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  • Methods and devices for sending and receiving short message, and short message sending and receiving system
  • Methods and devices for sending and receiving short message, and short message sending and receiving system
  • Methods and devices for sending and receiving short message, and short message sending and receiving system

Examples

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Embodiment 1

[0048] image 3 The first kind of predetermined coding method that the embodiment of the present invention provides, this method encodes each text message character to be sent into a low-frequency frequency and a high-frequency frequency that can be sent through the audio path, then each text message character can be with high frequency, The way low frequency frequencies are sent out through the audio path. The encoding method specifically includes the following steps:

[0049] S31: Pre-configuring and storing short message characters and high-frequency and low-frequency frequency code tables.

[0050]The specific implementation method of this step is: predetermine N1 high-frequency frequencies f that can be sent through the audio channel 1 , f 2 ,...,f N1 , and N2 low-frequency frequencies f′ that can be sent through the audio path 1 , f' 2 ,...,f' N2 ; with f 1 , f 2 ,...,f N1 A frequency in and f′ 1 , f' 2 ,...,f' N2 One of the frequencies is coded as a short m...

Embodiment 2

[0060] Provided in the above-mentioned embodiment one is a kind of specific method that any text message character is encoded, because the number of characters such as numeral character, punctuation mark is not many, can be easily realized by this encoding method when it is encoded, and Chinese character quantity is more , when adopting the method for encoding arbitrary SMS characters provided by the embodiment of the present invention, there are many frequencies that can be sent through the audio channel, and in order to further save frequency resources, this embodiment provides another encoding method for Chinese characters method, which can further reduce the audio frequency used for encoding on the basis of the above encoding method, specifically as Figure 5 shown.

[0061] Figure 5 The second predetermined encoding method provided by the embodiment of the present invention is used to convert the Chinese characters to be sent into pinyin character strings first, and the...

Embodiment 3

[0077] Figure 7 The 3rd kind of predetermined encoding method that the embodiment of the present invention provides, this method encodes each short message character to be sent into at least two DTMF codes in the existing DTMF technology, then each short message character can be The high-frequency frequency and low-frequency frequency corresponding to the dual-tone multi-frequency code corresponding to the short message characters are sent through the audio channel. The method specifically includes the following steps:

[0078] S71: Pre-configure and store short message characters and DTMF code encoding tables.

[0079] The specific implementation method of this step is: the mode that at least two DTMF codes in DTMF codes are encoded as a short message character in advance, 16 DTMF codes are encoded into some short message characters, obtain and Store short message characters and dual-tone multi-frequency code code table. Wherein, it can be stipulated that each short messa...

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Abstract

The invention discloses a short message sending method. The short message sending method comprises the following steps of: according to a preset coding method, coding a short message character string to be sent into audio information; and sending the audio information through a connected audio channel. The invention also provides a short message receiving method, which corresponds to the short message sending method. The short message receiving method comprises the following steps of: receiving the audio information which is sent through the connected audio channel; and according to a preset decoding method, decoding the received audio information into the short message character string. The invention also provides a short message sending device, a short message receiving device and a short message sending and receiving system, which correspond to the short message sending method and the short message receiving method. By adoption of the scheme provided by the invention, when a short message channel fails, a short message of which the contents include Chinese characters, English characters, numbers, phonetic letters, punctuation marks and the like can be sent through the audio channel. The invention is high in sending speed, high in anti-interference capacity and high in practicability and can be applied to various communication systems.

Description

technical field [0001] The invention relates to the communication field, in particular to a short message sending method, a short message receiving method, a corresponding short message sending device, a short message receiving device and a short message sending and receiving system. Background technique [0002] In the actual communication system, many control commands are issued in the form of short messages. When the short message channel fails (for example, when the short message gateway is blocked due to the surge in the amount of short messages in the entire communication network during holidays), it may cause In some communication systems, short messages cannot be sent normally, resulting in that the operations corresponding to the control commands issued in the form of short messages in the system cannot be carried out normally. Therefore, a scheme that can normally send short messages by other means is needed when there is a problem with the short message channel. ...

Claims

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Application Information

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IPC IPC(8): H04W4/14
Inventor 张然邵颖杨延明王钢
Owner SHANGHAI CHEYIN NETWORK TECH
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