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IP over RF network system

A network standard and signal technology, applied in electrical components, wireless communications, transmission systems, etc., to prevent monitoring/eavesdropping

Active Publication Date: 2017-01-11
WUHAN SYNTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the defect that no RF communication chip in the prior art can be compatible with various network standards at the same time, the present invention provides an IP over RF network standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 As shown, the RF unit includes: antenna ANT, used to send and receive RF signals; low noise amplifier LNA, used to amplify RF signals; down-mixer RMIXER, used to linearly move RF signals to intermediate frequency signals; frequency synthesizer FS , used to generate a frequency source in a certain frequency range; the up-mixer TMIXER, used to linearly move the intermediate frequency signal to the RF signal; and the power amplifier PA, used to amplify the RF signal and transmit it through the antenna ANT. The RF unit mainly has the following two working modes:

[0031]Signal receiving mode: The signal is input to LNA after being received by the antenna ANT, and then input to RMIXER for linear frequency shift after being amplified by LNA with low noise, and the high frequency is shifted to the intermediate frequency, and then provided to ABB.

[0032] Signal transmission mode: The intermediate frequency signal provided by ABB is input into TMIXER for lin...

Embodiment 2

[0042] Such as image 3 and 4 As shown, the digital baseband DBB unit includes: a fast Fourier transform IFFT module 202, which is used to provide the transformation from the frequency domain to the time domain with a variable number of points; a fast Fourier transform FFT module 204, which is used to provide a variable number of points Transformation from time domain to frequency domain; vector mapping modulation and demodulation module 206, used to provide vector-based modulation and demodulation methods, so as to be compatible with multiple modulation and demodulation methods; codec module 208, used to provide multiple codec methods.

[0043] In this embodiment, the FFT and IFFT modules use variable points, thereby solving the problem of inconsistency in the number of subcarriers under different OFDM systems. That is to say, in this application, the number of points of FFT and IFFT is standardized, and then a maximum available number of points is provided. In specific impl...

Embodiment 3

[0050] Such as Figures 5A-5E As shown, the accompanying drawings show various network application examples of the IP over RF network standard of the present invention. Figure 5A It shows a schematic diagram of data sending and receiving for D2D communication, P2P communication or M2M communication in the IP over RF network standard of the present invention. Data can be transferred directly from one device to another.

[0051] Figure 5B A schematic diagram of wireless signal amplification performed by the IP over RF network standard of the present invention is shown. When the two communication targets MA(A) and MA(C) cannot communicate directly due to various reasons (such as too far away, blocked by obstacles, too low transmission power, etc.), they can communicate wirelessly through the intermediate device MS(B). Signal amplification. At this time, the wireless signal is only amplified by the antenna of MS(B), and the received wireless signal is amplified and sent out i...

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Abstract

The present invention discloses an IP over RF network system. The system comprises an RF unit, a reconfigurable analog baseband unit, a digital baseband unit and a multi-protocol compatible MAC unit; the RF unit is used for transmitting and receiving RF signals in a dynamically-changing frequency range; the reconfigurable analog baseband unit is used for carrying out filtering, amplification, digital-to-analog conversion and analog-to-digital conversion on signals so as to output bandwidth, gain and sampling rate reconfigurable processing signals; the digital baseband unit is parameterized so as to be compatible with a plurality of protocols and dynamically generate customized protocols; the multi-protocol compatible MAC unit is used for carrying out communication with one of a plurality of MAC layer protocols in an automatically switchable manner; and the MAC unit has a time division and statistical time division ratio adaptive mechanism, so that the time ratio of time division and statistical time division in each period can be adaptively controlled. With the IP over RF network system provided by the invention adopted, problems in the compatibility and integration of different frameworks of ubiquitous networks with protocols can be solved, and networks can be possibly unified into IP networks in the future.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an IP over RF network standard. Background technique [0002] With the rapid development of Internet technology, Internet Protocol (IP) has become the mainstream protocol for data communication. Although there are still other networks such as telecommunication networks and mobile networks, due to the advantages of IP networks, such as easy network construction and low cost. Various networks in the future are bound to be unified into IP networks. Similarly, with the development of smart terminals, mobile communications and the Internet of Things, RF communication technology is becoming more and more important. However, the existing communication network mainly has the following problems: various network standards exist at the same time, such as DVB-T, GSM, CDMA, 3G, 4G, ZigBee, Bluetooth, IEEE802.11x, etc., but no RF communication chip can Compatible with these ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B1/401H04W88/06
CPCH04B1/0003H04B1/0053H04B1/401H04W88/06
Inventor 张科峰
Owner WUHAN SYNTEK CO LTD
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