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A channel compression and decompression method and device based on cell broadcast short message

A compression algorithm and technology for short messages, applied in the field of communications, can solve the problems of long message data length and affect the efficiency of message sending and receiving, and achieve the effects of improving security, shortening length, and improving transmission efficiency.

Active Publication Date: 2018-10-26
HENGBAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the channel parameters in the broadcast SMS are generally directly included in the message data of the SMS. If the number of channels is large, the data length of the SMS will be longer, and even the data needs to be sent by cascading SMS, which will affect the SMS. sending and receiving efficiency

Method used

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  • A channel compression and decompression method and device based on cell broadcast short message
  • A channel compression and decompression method and device based on cell broadcast short message
  • A channel compression and decompression method and device based on cell broadcast short message

Examples

Experimental program
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Embodiment 1

[0039] Embodiment 1. A channel compression method based on cell broadcast short messages. Combine below figure 1 The channel compression method provided in this embodiment will be described in detail.

[0040] See figure 1 , The channel compression method provided in this embodiment includes:

[0041] S1a. The SMS sender determines at least one legal SMS channel number, and determines the compression algorithm identifier agreed in advance with the SMS receiver.

[0042] S2a. Calculate the parent channel index value according to the determined legal SMS channel number, and merge the compression algorithm identifier and the parent channel index value into the first byte of the SMS data.

[0043] Specifically, the short message channel is a parameter in the cell broadcast short message, which is usually used for the filtering operation of the short message. After the SMS sender and the SMS receiver agree on a legal SMS channel, the SMS receiver will only receive SMS from the legal chann...

Embodiment 2

[0066] Embodiment 2. A channel decompression method based on cell broadcast short messages. Combine below figure 2 The channel decompression method provided in this embodiment is described in detail.

[0067] See figure 2 , The SMS channel decompression part provided in this embodiment includes:

[0068] S1b. The short message receiver receives the compressed short message data sent by the short message sender.

[0069] S2b. Parse the compressed short message data to obtain a compression algorithm identification, and determine whether the compressed algorithm identification obtained by the analysis is consistent with the pre-appointed compression algorithm identification, if they are consistent, retain the short message data and execute S3b; if they are inconsistent, discard the SMS data, end the process.

[0070] Specifically, see figure 2 , The SMS receiver receives the compressed data SMS sent by the SMS sender, and parses the compression algorithm ID from it, compares the pars...

Embodiment 3

[0078] Embodiment 3. A channel compression device based on cell broadcast short messages. Combine below image 3 The channel compression device provided in this embodiment will be described in detail.

[0079] See image 3 The channel compression device provided in this embodiment includes a determining module 41a, a first calculating module 42a, a second calculating module 43a, a third calculating module 44a, a combining module 45a, and a sending module 46a.

[0080] Among them, the determining module 41a is mainly used to determine at least one legal SMS channel number, and determine the compression algorithm identifier pre-appointed with the SMS recipient.

[0081] The first calculation module 42a is mainly used to calculate the parent channel index value according to the determined legal SMS channel number.

[0082] Specifically, one byte of low four-digit binary is used to represent the parent channel index value, corresponding to the 256 short message channel numbers are divided...

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PUM

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Abstract

The invention discloses a cell broadcast message based channel compressing and decompressing method and device. The method includes a message channel compressing part and a message channel decompressing part. A message sending party compresses a plurality of legal message channel numbers according to a specific algorithm and then embeds the numbers into message data, and sends the message data to a message receiving party. The message receiving party analyzes the message data after receiving the message data and calculates the original legal message channel numbers through inverse operation. According to the invention, a plurality of message channel parameters can be compressed to comparatively short data information, so that message transmission efficiency is improved.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for channel compression and decompression based on cell broadcast short messages. Background technique [0002] The channel is a parameter in the cell broadcast message, which is generally used for the filtering operation of the message. After the SMS sender and receiver agree on a legal SMS channel, the receiver will only receive SMS from the legal channel, and other SMS will be discarded. [0003] At present, the channel parameters in the broadcast short message are generally directly included in the message data of the short message. If the number of channels is large, the data length of the short message will be longer, and it is even necessary to send data through cascaded short messages, which affects the short message 的 Transceiver efficiency. Summary of the invention [0004] The technical problem to be solved by the present invention is to pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/14H04W28/06
CPCH04W4/14H04W28/06
Inventor 李刚
Owner HENGBAO