CN206533389U - Wide-band mobile communication system R-T unit based on multicarrier super Nyquist - Google Patents
Wide-band mobile communication system R-T unit based on multicarrier super Nyquist Download PDFInfo
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- CN206533389U CN206533389U CN201621363030.XU CN201621363030U CN206533389U CN 206533389 U CN206533389 U CN 206533389U CN 201621363030 U CN201621363030 U CN 201621363030U CN 206533389 U CN206533389 U CN 206533389U
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Abstract
Wide-band mobile communication system R-T unit based on multicarrier super Nyquist, including sending part and acceptance division, sending part includes the information source module being sequentially connected, scrambler, channel encoder, constellation mapping block, inverse fast fourier transform IFFT modules, FTN shaped pulse modules, D/A switch D/A modules, low pass filter LP, up-converter module, high power amplifier HPA and transmitting antenna, acceptance division includes the reception antenna being sequentially connected, low-converter, low pass filter LP, analog/digital conversion A/D modules, FTN matched filtering modules, Fast Fourier Transform (FFT) FFT module, channel equalization module, constellation inverse mapping module, channel decoder, descrambler and stay of two nights module.The utility model can make full use of limited bandwidth and time resource, and message transmission rate is higher, and anti-channel disturbance ability is stronger, can meet wide-band mobile communication system high speed data transfer demand.
Description
Technical field
The utility model is related to mobile communication technology field, and specially a kind of broadband based on multicarrier super Nyquist is moved
Dynamic communication system transmit-receive device.
Background technology
To meet the explosive growth of business datum amount, high data rate and spectrum efficiency are that contemporary broadband movement is logical
Believe the major issue of systems face.Multicarrier super Nyquist MFTN (Multicarrier faster-than-Nyquist) is
It is a kind of based on multicarrier transmission systems and to be unsatisfactory for the transmission means of Nyquist orthogonality condition, by carrying out arteries and veins to transmission data
Rush shaping and symbol transmission time interval is compressed, MFTN transmission technologys can be obtained compared with conventional orthogonal multi-carrier transmission system
System, such as orthogonal frequency division multiplex OFDM system, higher transmission rate and band utilization efficiency.Therefore, it can should by MFTN technologies
For time and bandwidth resources limited wide-band mobile communication system with further lifting system performance.
The content of the invention
The purpose of this utility model is a kind of wide-band mobile communication system based on MFTN of offer, can effectively lift biography
Orthogonal multiple carrier wide-band mobile communication system transmission rate of uniting and spectrum utilization efficiency, further meet high speed data transfer need
Ask, meanwhile, the modulation and demodulation of system are realized using Fast Fourier Transform (FFT) IFFT/FFT modules, moreover it is possible to make the system and existing
Wide-band mobile communication system it is compatible.
The technical solution of the utility model is：Wide-band mobile communication system transmitting-receiving dress based on multicarrier super Nyquist
Put, including sending part and acceptance division,
Sending part includes the information source module being sequentially connected, scrambler, channel encoder, constellation mapping block, inverse quick Fu
In leaf transformation IFFT modules, FTN shaped pulses module, D/A switch D/A modules, low pass filter LP, up-converter module, height
Power amplifier HPA and transmitting antenna, wherein the channel encoder, constellation mapping block, inverse fast fourier transform IFFT
Module and FTN shaping pulses module are also all connected in the first parameter adjuster,
Acceptance division include be sequentially connected reception antenna, low-converter, low pass filter LP, analog/digital conversion A/D modules,
FTN matched filterings module, Fast Fourier Transform (FFT) FFT module, channel equalization module, constellation inverse mapping module, channel decoder,
Descrambler and stay of two nights module, wherein the FTN matched filterings module, Fast Fourier Transform (FFT) FFT module, channel equalization module,
Constellation inverse mapping module and channel decoder are all connected in the second parameter adjuster.
It is forward channel, wireless communication connection between transmitting antenna and reception antenna.
First parameter adjuster is used for channel encoder, constellation mapping block, inverse fast fourier transform IFFT
Module and FTN shaping pulse modules are configured.Second parameter adjuster is used for FTN matched filterings module, quick Fu
In leaf transformation FFT module, constellation inverse mapping module and channel decoder be configured.
Advantage and effect of the present utility model：
The utility model uses shaped pulse, such as Raised-Root Cosine Pulse, Gaussian pulse pair by setting shaped pulse module
Data carry out shaping pulse, can make signal frequency domain decay faster, thus can avoid being similar to guarantor in traditional OFDM transmission system
The use of frequency band is protected, band efficiency is improved；On the other hand, because shaped pulse is decayed faster in frequency domain so that adjacent channel
Between disturb smaller, improve the anti-interchannel interference performance of system；Further, since FTN shaped pulse modules introduce symbol
Transmission Time Interval is compressed, and more data messages can be transmitted within same time and frequency resource, are further improved
The transmission rate and spectrum utilization efficiency of system；Finally, realize that the modulation and demodulation of signal may be used also using IFFT and FFT module
So that system and existing multicarrier transmission systems are compatible.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
Embodiment
The utility model principle is that the composition of wide-band mobile communication system is similar with other communication systems, mainly includes
Transmitting terminal, transmission channel and receiving terminal, mobile radio channel are the important component or link as transmission channel.MFTN is wide
Tape movement communication system lays particular emphasis on using transmitting terminal signal modulation and receiving end signal demodulation to realize system transfer rate and frequency
The lifting of spectrum efficiency, the use of guard band is reduced by using shaped pulse signal for faster side lobe attenuation, while can also increase
The anti-interchannel interference ability of strong system.Further, symbol transmission time interval is compressed by FTN technologies, system is passed
Defeated speed and spectrum utilization efficiency can also obtain further lifting.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：As shown in figure 1, being moved towards according to signal, the utility model includes information source module 1, scrambler 2, channel and compiled
Code device 3, constellation mapping block 4, inverse fast fourier transform IFFT modules 5, FTN shaped pulses module 6, D/A switch D/A moulds
Block 7, low pass filter LP8, up-converter module 9, high power amplifier HPA10, transmitting antenna 11, reception antenna 13, down coversion
Device 14, low pass filter LP15, analog/digital conversion A/D modules 16, FTN matched filterings module 17, Fast Fourier Transform (FFT) FFT moulds
Block 18, channel equalization module 19, constellation inverse mapping module 20, channel decoder 21, descrambler 22 and stay of two nights module 23, the letter
Road coding module 3, constellation mapping block 4, IFFT modules 5, FTN shaped pulses module 6 are all connected to the first parameter adjuster 24
On, the FTN matched filterings module 17, FFT module 18, channel equalization module 19, constellation inverse mapping module 20, channel decoder
21 are all connected in the second parameter adjuster 25.
In the above-described embodiments, the transmitting world 11 and reception antenna 13 are attached by forward channel 12.It is described
Each module is existing communication apparatus, under multicarrier super Nyquist MFTN communication modes, technical staff know as
What is set using, and is no longer described in detail.
In the above-described embodiments, first parameter adjuster 24 respectively to channel encoder 3, constellation mapping block 4,
IFFT modules 5, shaping pulse pulse 6 are controlled.Second parameter adjuster 25 respectively to FTN matched filterings module 17,
FFT module 18, channel equalization module 19, constellation inverse mapping module 20, channel decoder 21 are controlled.
The foregoing is only preferred embodiment of the present utility model, not to limit the utility model, it is every
The related spirit of the utility model and principle etc any modifications, equivalent substitutions and improvements made etc., should be included in this reality
With new protection domain etc.
Claims (2)
1. the wide-band mobile communication system R-T unit based on multicarrier super Nyquist, it is characterised in that including sending part and connect
Receipts portion,
Sending part include be sequentially connected information source module (1), scrambler (2), channel encoder (3), constellation mapping block (4),
Inverse fast fourier transform IFFT modules (5), FTN shaped pulses module (6), D/A switch D/A modules (7), sending part low pass
Wave filter LP (8), up-converter module (9), high power amplifier HPA (10) and transmitting antenna (11), wherein the channel coding
Device (3), constellation mapping block (4), inverse fast fourier transform IFFT modules (5) and FTN shaped pulses module (6) are also all connected with
In in the first parameter adjuster,
Acceptance division include be sequentially connected reception antenna (13), low-converter (14), acceptance division low pass filter LP (15), mould/
Number conversion A/D modules (16), FTN matched filterings module (17), Fast Fourier Transform (FFT) FFT module (18), channel equalization module
(19), constellation inverse mapping module (20), channel decoder (21), descrambler (22) and stay of two nights module (23), wherein described FTN
With filtration module (17), Fast Fourier Transform (FFT) FFT module (18), channel equalization module (19), constellation inverse mapping module (20)
It is all connected to channel decoder (21) in the second parameter adjuster (25).
2. the wide-band mobile communication system R-T unit according to claim 1 based on multicarrier super Nyquist, it is special
Levy and be between transmitting antenna (11) and reception antenna (13) to be forward channel (12), wireless communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621363030.XU CN206533389U (en) | 2016-12-12 | 2016-12-12 | Wide-band mobile communication system R-T unit based on multicarrier super Nyquist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621363030.XU CN206533389U (en) | 2016-12-12 | 2016-12-12 | Wide-band mobile communication system R-T unit based on multicarrier super Nyquist |
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| CN206533389U true CN206533389U (en) | 2017-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020227866A1 (en) * | 2019-05-10 | 2020-11-19 | 株式会社Ntt都科摩 | Terminal and sending method |
-
2016
- 2016-12-12 CN CN201621363030.XU patent/CN206533389U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020227866A1 (en) * | 2019-05-10 | 2020-11-19 | 株式会社Ntt都科摩 | Terminal and sending method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20181212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |