CN108988868A - G net turns radio digital communication trunking - Google Patents
G net turns radio digital communication trunking Download PDFInfo
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- CN108988868A CN108988868A CN201810871125.XA CN201810871125A CN108988868A CN 108988868 A CN108988868 A CN 108988868A CN 201810871125 A CN201810871125 A CN 201810871125A CN 108988868 A CN108988868 A CN 108988868A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6522—Intended application, e.g. transmission or communication standard
- H03M13/6536—GSM GPRS
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/13—Linear codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
- H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2939—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using convolutional codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
Abstract
The invention discloses G nets to turn radio digital communication trunking, including signal receiver, encoder, encrypting module, conversion module and sending module, signal receiver receives G network data, it further include being provided with code divider, data received in signal receiver are segmented by the code divider, it is divided into long code section, short code section, control code section, the long code section, short code is short to split the communication data received in data, the long code section is encoded using LDPC code, when code rate is more than 50kbbit/S, overage is encoded by long code section, part is less than to be encoded using short code section, the short code section is encoded using polar code, the control code section is after the completion of long code section and short code section encode, carry out control code coding, and the data after encoding will be completed and be sent to encoder progress Preamble.
Description
Technical field
The present invention relates to data signal transmission field, in particular to G net turns radio digital communication trunking.
Background technique
Current DCS distributed AC servo system, FCS field bus technique, Ethernet industrial Ethernet technology are logical in industrial bus
Application in news control have been relatively mature.Such as ModBUS agreement, ForfiBUS agreement, CAN protocol, FF agreement etc. is in agreement
It is reliable and uniformly transparent in terms of specification and communication security, and class is produced such as in derivative to Ethernet
Industrial Ethernet puppy parc as ModBUS/TCP.
In terms of wireless telecommunications, due to civil telecommunications demand such as mobile phone communication, short message and wireless Wifi etc., relevant technology
Be also rapidly develop, by GSM to GPRS to 3G even upcoming 4G technology, mobile phone wireless communication technology increasingly maturation and
And the problem of without communication wiring over long distances.The communication coverage rate of associated communication infrastructure communication base station is also higher and higher.Cause
This, wireless telecommunications have very strong advantage in terms of the application of difficult wiring and extra long distance communication.Therefore current very much
The product of field control system all is considering to use GSM/GPRS technology, is turning to wireless telecommunication control mode, omit power down
The problem that cable wiring tape comes.These products acquire data at the scene, by being wirelessly transmitted to control centre, then receive in control
The control instruction that the heart transmits executes corresponding movement.
But wire communication technology is very mature after all, most of scene executing agencies all support wire communication, and incite somebody to action
These products be successively transformed into support wireless telecommunications product it is time-consuming and laborious, to verify product reliability need put into when
Between it is quite huge with money.Therefore best solution is additional one Communication Control that wire communication is switched to wireless telecommunications
Conversion equipment is not needed to design original product in this way and be made an amendment.
And the wire communication control system for having applied at the scene, into need when wireless row transformation and upgrade will be original
Wire communication product is all replaced, and cost is also very big.Therefore it is also required to consider to transform wireless telecommunications as under the conditions of original system
The problem of control.
Already present wire communication switchs to the Communication Control conversion equipment of wireless telecommunications currently on the market, is wire line protocols
Pellucidly be converted to wireless protocols.The disadvantage is that protocol conversion apparatus does not have intelligent functions in line communication system, no
With networking, automatic inquiry and data acquisition buffer function cannot serve as the role of wire line protocols scheduling, such junior's detector
Data dispatch need by higher level's wireless control center complete, increase the work of control centre, in practical large scale system application
Middle communication speed is unable to satisfy control and requires.
Summary of the invention
It is an object of the invention to: it provides G net and turns radio digital communication trunking, solve current GPRS network
Signaling rate is slow, and after converting wireless signal for GPRS network, transmission speed is slow, and being unfavorable for trunking normally makes
With.
The technical solution adopted by the invention is as follows:
G net turns radio digital communication trunking, including signal receiver, encoder, encrypting module, conversion module and hair
Module is sent, it further includes being provided with code divider, the code divider will receive in signal receiver that signal receiver, which receives G network data,
Data be segmented, be divided into long code section, short code section, control code section, the long code section, short code are short will to receive the communication in data
Data are split, and the long code section is encoded using LDPC code, and when code rate is more than 50kbbit/S, overage passes through length
Code section is encoded, and is less than part and is encoded using short code section, the short code section is encoded using polar code, described
Control code section carries out control code coding after the completion of long code section and short code section encode, and is sent to the data after encoding are completed
Encoder carries out preamble.Currently, in GPRS network itself transmission speed with regard to poor, so carrying out wireless digital
When communication conversion, the transmission speed after conversion is worse, so GPRS network has seldom been carried out using but some at present
Remote districts, the base station 4G are not laid with completely and open, and are relatively common utilizations using GPRS network, present specification is right accordingly
GPRS network optimizes coding, and data are carried out to separate layout, is designed using long short code, communication data is divided
Section, is encoded by different coding modes, can be effectively improved the efficiency that transmission is read, be avoided the accumulation of high remainder evidence,
Then system is influenced.It is used using LDPC code as long code, is because LDPC code is there are two feature, first is with simple dilute
Dredge check matrix random permutation and terse simulation random code, second be information prior probability and characteristic of channel known case
Under iterative decoding algorithm, using this as long code encode, when data bit rate is higher, occupy channel can't at than
Example increases, but slowly increases, this is the advantage with extraordinary high code rate data transmission in practical function.And in code
When rate is lower, currently, the design optimized is using polar code, because polar code, that is, polarization code is in the discrete nothing of binary system
With relatively wide in memory channel and binary system erasure channel, in simple terms, using violence encoding operation method, code rate compared with
When low, encoding efficiency is best, and after code rate rises to a certain extent, the efficiency of coding will substantially reduce.Long short code is
Transmission data are subjected to coded treatment, and control code is will to give data one unique condition code, it, can when being transmitted
Guarantee that the data of data transmission will not lose.After completing coding, preamble is carried out using encoder, it is ensured that in transmission,
It is received by the sequencing that data are transmitted.
Further, for the encoder after completing preamble, the setting data imported in encrypting module carry out data
Encryption, the encrypting module are encrypted using cyclic redundancy check mode.Added by recycling high redundancy checksum mode
Close, real communication link all will not be ideal.This is to say, bit may generate mistake during transmission: 1 can
0,0, which can be will become, may will become 1, therefore be actually after a length of k of data using the operation for recycling high redundancy checksum
The position the n redundant code for error detection is added in face, and then configuration frame k+n send, and after comparing verification, can accomplish
The zero defect of frame is received.
Further, the signal receiver will send data to conversion module simultaneously after the segmentation of G network data and be turned
Change, conversion module converts G network data by TD-LTE, G network data is converted to wireless communication data, and feed back to letter
Data sectional coding is carried out in number receiver to send.It is to carry out data in the place for supporting the communication of 4G using this conversion equipment
Conversion, is converted by TD-LTE, can be improved the efficiency of data transmission.
Further, the sending module receives encoder and completes preamble and encrypted data, by the data into
Row is packaged, and is sent to external equipment.
Further, the LDPC code is encoded using LDPC convolutional-code.
Further, the transmission rate of the received G network data of the signal receiver is 114kbps.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1.G net is turned radio digital communication trunking and is designed using dicode, can be improved efficiency when data transmission, and
And it is more efficient, dual coding is used, can be avoided loss of data, and can guarantee that the information in data is not lost.
2. the signaling rate that the present invention solves current GPRS network is slow, 4G wireless signal is converted by GPRS network
Afterwards, transmission speed increases, being capable of trunking normal use.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is the system flow chart that G net turns radio digital communication trunking；
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates below with reference to Fig. 1 to the present invention.
Embodiment 1
G net turns radio digital communication trunking, including signal receiver, encoder, encrypting module, conversion module and hair
Module is sent, it further includes being provided with code divider, the code divider will receive in signal receiver that signal receiver, which receives G network data,
Data be segmented, be divided into long code section, short code section, control code section, the long code section, short code are short will to receive the communication in data
Data are split, and the long code section is encoded using LDPC code, and when code rate is more than 50kbbit/S, overage passes through length
Code section is encoded, and is less than part and is encoded using short code section, the short code section is encoded using polar code, described
Control code section carries out control code coding after the completion of long code section and short code section encode, and is sent to the data after encoding are completed
Encoder carries out preamble.Currently, in GPRS network itself transmission speed with regard to poor, so carrying out wireless digital
When communication conversion, the transmission speed after conversion is worse, so GPRS network has seldom been carried out using but some at present
Remote districts, the base station 4G are not laid with completely and open, and are relatively common utilizations using GPRS network, present specification is right accordingly
GPRS network optimizes coding, and data are carried out to separate layout, is designed using long short code, communication data is divided
Section, is encoded by different coding modes, can be effectively improved the efficiency that transmission is read, be avoided the accumulation of high remainder evidence,
Then system is influenced.It is used using LDPC code as long code, is because LDPC code is there are two feature, first is with simple dilute
Dredge check matrix random permutation and terse simulation random code, second be information prior probability and characteristic of channel known case
Under iterative decoding algorithm, using this as long code encode, when data bit rate is higher, occupy channel can't at than
Example increases, but slowly increases, this is the advantage with extraordinary high code rate data transmission in practical function.And in code
When rate is lower, currently, the design optimized is using polar code, because polar code, that is, polarization code is in the discrete nothing of binary system
With relatively wide in memory channel and binary system erasure channel, in simple terms, using violence encoding operation method, code rate compared with
When low, encoding efficiency is best, and after code rate rises to a certain extent, the efficiency of coding will substantially reduce.Long short code is
Transmission data are subjected to coded treatment, and control code is will to give data one unique condition code, it, can when being transmitted
Guarantee that the data of data transmission will not lose.After completing coding, preamble is carried out using encoder, it is ensured that in transmission,
It is received by the sequencing that data are transmitted.
The working principle of the invention/the course of work are as follows: receive the data of G net by signal receiver first, G net is
GPRS network after reception, is walked by two, and when that can not be converted into wireless communication data, received data are carried out length
Code, control code classification processing after carry out first time coding, second coding is being carried out by encoder, by the number of first encoding
According to sequential encoding is carried out, coding is the efficiency of transmission and transmission accuracy in order to solve data for the first time, and second of coding is
The data of first time coding are subjected to sequential organization, in this way in transmission, corresponding data can be transmitted in sequence, will not be led
Cause is transmitted carelessly, and channel is allowed to block.Code rate differential point in the application is in 50kbbit/s, because of the speed of download of G network data
Up to 144kbps can be split using 50kbbit/s, allow short code and long code can effectively in practice into
Row uses.
For the encoder after completing preamble, the setting data imported in encrypting module carry out data encryption, described
Encrypting module is encrypted using cyclic redundancy check mode.It is encrypted by recycling high redundancy checksum mode, it is real
Communication link all will not be ideal.This is to say, bit may generate mistake during transmission: 1 may will become
0,0 may will become 1, therefore be actually to add to supply behind a length of k of data using the operation for recycling high redundancy checksum
The position the n redundant code of error detection, then configuration frame k+n send, and after comparing verification, can accomplish the nothing to frame
Received error.In practical function, first using Modulo-two operation: it is actually step-by-step XOR operation, i.e., is mutually all 0, it is different
It is 1, that is, the binary system plus and minus calculation for not considering carry, borrowing.Such as: 1111+1010=0101, it is now assumed that number to be transmitted
According to M=101001 (k=6), divisor p=1101 (n=3) is one more than n
This n redundant code can obtain in the following method.
(1) operation that (2^n) multiplies M is carried out with binary Modulo-two operation, is equivalent to behind M and adds n 0.
That is 30 are added behind M.
(2) number of the position M=101001000 (k+n=9) is obtained now divided by the position divisor p (n=3),
Obtaining quotient is Q (being indifferent to), and remainder R=001 (n) R is exactly redundant code FCS, now plus the frame sent after FCS
It is 101001001.Receiving end the data M=101001001 received by frame as unit of carry out CRC check: what is received
Each frame is divided by identical divisor p (Modulo-two operation), the remainder R then checked.If not poor in transmission process
Mistake, then obtaining remainder R after examining is 0 certainly.In short, passing through CRC check to each frame received in receiving end
Afterwards, there are two types of situations: (1) remainder R=0 then judges that there is no problem for this frame, just receives.(2) remainder R！=0, then judge this
Frame has mistake, just abandons.
Embodiment 2
The present embodiment optimizes on the basis of embodiment 1, and the signal receiver simultaneously will after being segmented G network data
Data are sent to conversion module and are converted, and conversion module converts G network data by TD-LTE, and G network data is converted
For wireless communication data, and feeds back in signal receiver and carry out data sectional coding and send.Using this conversion equipment be
It supports the place of the communication of 4G to carry out data conversion, is converted by TD-LTE, can be improved the efficiency of data transmission.
The sending module receives encoder and completes preamble and encrypted data, which is packaged, and
It is sent to external equipment.
The LDPC code is encoded using LDPC convolutional-code.Convolutional code is a kind of error control coding, and convolutional code is one
Kind have the error correcting code of memory, coding rule is to encode k information bit to form n bit, n symbol after coding not only with
K currently entered are information-related, still information-related with L-1 group before,
The transmission rate of the received G network data of signal receiver is 114kbps.GPRS downloading rate highest is
114kbps, because the transmission of its data has the upper limit, present specification improvement is to carry out sending and uploading clothes after it receives data
The rate of business device.
The above, only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, it is any
Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or
Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Subject to fixed protection scope.
Claims (6)
1.G net turns radio digital communication trunking, including signal receiver, encoder, encrypting module, conversion module and transmission
Module, signal receiver receive G network data, it is characterised in that: further include being provided with code divider, the code divider receives signal
Received data are segmented in device, are divided into long code section, short code section, control code section, the long code section, short code are short will to receive data
In communication data split, the long code section is encoded using LDPC code, when code rate is more than 50kbbit/S, more than portion
Divide and encoded by long code section, is less than part and is encoded using short code section, the short code section is compiled using polar code
Code, the control code section carries out control code coding after the completion of long code section and short code section encode, and will complete the data after encoding
It is sent to encoder and carries out preamble.
2. G net according to claim 1 turns radio digital communication trunking, it is characterised in that: the encoder is complete
After preamble, the setting data imported in encrypting module carry out data encryption, and the encrypting module uses Cyclic Redundancy Code
Verification mode is encrypted.
3. G net according to claim 1 turns radio digital communication trunking, it is characterised in that: the signal receiver
To send data to conversion module simultaneously after the segmentation of G network data and convert, conversion module by G network data by TD-LTE into
Row conversion, is converted to wireless communication data for G network data, and feeds back in signal receiver and carry out data sectional coding transmission.
4. G net according to claim 1 turns radio digital communication trunking, it is characterised in that: the sending module connects
It receives encoder and completes preamble and encrypted data, which is packaged, and be sent to external equipment.
5. G net according to claim 1 turns radio digital communication trunking, it is characterised in that: the LDPC code uses
LDPC convolutional-code is encoded.
6. G net according to claim 1 turns radio digital communication trunking, it is characterised in that: the signal receiver
The transmission rate of received G network data is 114kbps.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645007A (en) * | 2021-10-15 | 2021-11-12 | 苏州纳芯微电子股份有限公司 | Single channel communication encoding method, decoding method, encoding circuit and decoding circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780197A (en) * | 2004-11-25 | 2006-05-31 | 中国传媒大学信息工程学院 | Self-adaptive mixed channel coding-decoder and method thereof |
| CN101584143A (en) * | 2007-01-05 | 2009-11-18 | 高通股份有限公司 | FEC code and code rate selection based on packet size |
| US20110004812A1 (en) * | 2009-07-01 | 2011-01-06 | Silicon Motion, Inc. | Coder-decoder and method for encoding and decoding an error correction code |
| CN103354456A (en) * | 2008-07-02 | 2013-10-16 | 松下电器产业株式会社 | Transmission device, receiving device, transmission method and receiving method |
| CN104113395A (en) * | 2014-08-04 | 2014-10-22 | 北京水木云科信息技术有限公司 | Safe transmission method for data of Internet of Things under wireless poor network environment |
| CN105591716A (en) * | 2014-12-26 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Serial data communication method, devices and systems based on single carrier |
-
2018
- 2018-08-02 CN CN201810871125.XA patent/CN108988868A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1780197A (en) * | 2004-11-25 | 2006-05-31 | 中国传媒大学信息工程学院 | Self-adaptive mixed channel coding-decoder and method thereof |
| CN101584143A (en) * | 2007-01-05 | 2009-11-18 | 高通股份有限公司 | FEC code and code rate selection based on packet size |
| CN103354456A (en) * | 2008-07-02 | 2013-10-16 | 松下电器产业株式会社 | Transmission device, receiving device, transmission method and receiving method |
| US20110004812A1 (en) * | 2009-07-01 | 2011-01-06 | Silicon Motion, Inc. | Coder-decoder and method for encoding and decoding an error correction code |
| CN104113395A (en) * | 2014-08-04 | 2014-10-22 | 北京水木云科信息技术有限公司 | Safe transmission method for data of Internet of Things under wireless poor network environment |
| CN105591716A (en) * | 2014-12-26 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Serial data communication method, devices and systems based on single carrier |
Non-Patent Citations (1)
| Title |
|---|
| 李炜键: "基于4G 通信技术的无线网络安全", 《ELECTRIC POWER ICT》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113645007A (en) * | 2021-10-15 | 2021-11-12 | 苏州纳芯微电子股份有限公司 | Single channel communication encoding method, decoding method, encoding circuit and decoding circuit |
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Application publication date: 20181211 |