WO2011074832A2 - 광대역 무선 시스템 - Google Patents
광대역 무선 시스템 Download PDFInfo
- Publication number
- WO2011074832A2 WO2011074832A2 PCT/KR2010/008809 KR2010008809W WO2011074832A2 WO 2011074832 A2 WO2011074832 A2 WO 2011074832A2 KR 2010008809 W KR2010008809 W KR 2010008809W WO 2011074832 A2 WO2011074832 A2 WO 2011074832A2
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- WIPO (PCT)
- Prior art keywords
- intermediate frequency
- signal
- discrete
- frequency signals
- broadband wireless
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
- H03M1/188—Multi-path, i.e. having a separate analogue/digital converter for each possible range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
Definitions
- the present invention relates to a broadband wireless system, and in particular, has a wide operating range of high bit resolution, and is simply configured while enabling measurement and use of signal resources such as signal arrival time, intensity, frequency, pulse width, and modulation type.
- the present invention relates to a broadband wireless system having high reliability and easy use of a processed signal.
- wideband signal processing technology is a technique for digitizing a signal having a bandwidth of several gigabytes (GHz) or more and processing it to easily obtain information contained in the signal.
- This broadband signal processing technology enables high-capacity multimedia services through high-speed data transmission in 4G mobile communication systems, and can be used to improve detection capabilities in high-resolution implementations in radar systems.
- Particularly important among the various conditions for such wideband signal processing is that the signal processing system has a wide dynamic range and the ability to process a wide bandwidth or various narrowband signals constituting the bandwidth at high speed.
- the operating range of the system should be able to accommodate all narrowband signals having different signals in the wideband signal composed of a plurality of narrowband signals.
- broadband signal processing systems must have a high bit resolution while having a wide operating range.
- Conventional wireless systems have had to lower the operating range to reduce the bit resolution or to increase the bit resolution to secure the operating range.
- development of a system having a high bit resolution and a wide operating range must be preceded.
- an object of the present invention is to have a wide operating range of high bit resolution, to enable simple and high-quality measurement and use of signal resources such as signal arrival time, intensity, frequency, pulse width, and modulation type. It is to provide a broadband wireless system having reliability and easy use of processed signals.
- a broadband wireless system comprising: an antenna configured to receive the broadband wireless signal; A receiving unit receiving the broadband wireless signal from the antenna, processing the signal, and converting the signal into a first intermediate frequency signal; A signal distribution unit converting and distributing the first intermediate frequency signal into a second intermediate frequency signal which is a plurality of signals; A parallel amplifier for generating a third intermediate frequency signal obtained by amplifying the respective second intermediate frequency signals of the second intermediate frequency signals provided from the signal distributor by different amplification rates; A parallel analog-to-digital converter for generating a discrete intermediate frequency signal by analog-to-digital converting each of the respective third intermediate frequency signals of the third intermediate frequency signal from the parallel amplifier; And an execution system that analyzes the discrete discrete intermediate frequency signals of the discrete intermediate frequency signals from the analog-digital converter, selects any one of the discrete discrete intermediate frequency signals, and processes the selected discrete intermediate frequency signals. It is composed.
- the parallel amplifier includes a plurality of amplifiers having different amplification rates and connected to the signal distribution units, respectively, to receive and amplify the respective second intermediate frequency signals.
- the parallel analog-to-digital converter includes a plurality of analog-to-digital converters connected to each of the plurality of amplifiers individually to convert the respective third intermediate frequency signals generated by amplifying the respective second intermediate frequency signals. It is configured by.
- the execution system performs the selection by comparing whether the most significant bit or least significant bit of the individual discrete intermediate frequency signal is recorded or the magnitude of the individual discrete intermediate frequency signal to select the individual discrete intermediate frequency signal.
- FIG. 1 is an exemplary view showing the configuration of a broadband wireless system according to the present invention.
- FIG. 2 is a diagram illustrating the configuration of the broadband wireless system of FIG. 1 in more detail.
- Figure 3 is an exemplary view for explaining the operation of a broadband wireless system according to the present invention.
- FIG. 1 is an exemplary view showing the configuration of a broadband wireless system according to the present invention.
- a broadband wireless system includes an antenna 110, a receiver 120, a signal distributor 130, a parallel amplifier 150, a parallel analog digital converter 170, and an execution system ( 190).
- the antenna 110 receives the wideband radio signal RF and transmits it to the receiver 120.
- the receiver 120 receives the wideband radio signal RF transmitted from the antenna 110 and performs signal processing, and the first intermediate frequency signal, which is an intermediate frequency signal, can easily amplify the wideband radio signal RF by signal processing. Convert to (IF).
- the receiver 120 may be configured by a wideband device or a wideband circuit for receiving a wideband radio signal (RF) and processing a signal, but the present invention is not limited thereto.
- the signal distributor 130 parallel-converts the second intermediate frequency signals IF_M IF1, IF2... IFn generated by converting the first intermediate frequency signals IF transmitted from the receiver into the same plurality of signals. To provide. Although the signal distribution unit 130 ideally distributes the first intermediate frequency signal IF evenly to the same plurality of signals, in a real apparatus, the plurality of signals due to loss of the signal distribution unit 130 itself. Each of the second intermediate frequency signals IF1, IF2, ... IFn converted into may be a signal in which the first intermediate frequency signal IF is actually attenuated by loss. However, this does not limit the present invention.
- the parallel amplifier 150 sets the respective second intermediate frequency signals IF1, IF2... IFn of the plurality of second intermediate frequency signals IF_M to the amplification factor differently set.
- a third intermediate frequency signal (IF_MG: IF1_MG, IF2_MG ... IFn_MG) amplified by amplification is transferred to the parallel analog-digital converter 170.
- the parallel analog digital converter unit 170 (hereinafter referred to as a "parallel ADC unit") converts the respective third intermediate frequency signals IF1_MG, IF2_MG, IF3_MG ... IFn_MG of the third intermediate frequency signal IF_MG by analog and digital conversion.
- Discrete intermediate frequency signals IF_D (IF1_D, IF2_D ... IFn_D) are generated, and the generated discrete intermediate frequency signals IF_D are provided to the execution system 190.
- the execution system 190 analyzes each individual discrete intermediate frequency signal IF1_D, IF2_D ... IFn_D of the discrete intermediate frequency signal IF_D provided from the parallel ADC unit 170 to determine the saturation, normal and lack of the signal. Discriminate and select a normal signal to perform data processing. To this end, the execution system 190 determines the saturation and lack of the signals constituting the discrete intermediate frequency signal IF_D and selects the signals selected by the signal selector 191 and the signal selector 191 to select a normal signal. It may be configured to include a data processing unit 193 for processing.
- the broadband wireless system according to the present invention, as described above, the antenna 110, the receiver 120, the signal divider 130, the parallel amplifier 150, the parallel AD unit 170 And an execution system 190.
- the parallel amplifier 150 includes a plurality of amplifiers 151 to 154 having different amplification rates
- the parallel AD unit 170 includes a plurality of analog-digital converters (ADC1 to ADCn). It is configured to include.
- the signal distributor 130 equally distributes the first intermediate frequency signal IF provided by the receiver 120 to generate the second intermediate frequency signal IF_M, which is a plurality of signals, as described above.
- the second intermediate frequency signal IF_M does not consider the loss of the signal distribution unit 130, the plurality of individual second intermediate frequency signals IF1, IF2, IF3... IFn that are equal to the first intermediate frequency IF. It consists of The individual second intermediate frequency signals IF1, IF2, IF3... IFn of the second intermediate frequency signal IF_M are provided to the parallel amplifier 150 to be amplified by different amplification rates.
- the first intermediate frequency signal IF converted by the receiver 120 may be expressed as Equation (1).
- Y (t) is a function of the first intermediate frequency signal
- A is an amplification factor of the receiver 120
- f2 is a local frequency used in the receiver 120.
- the first heavy-weight frequency signal IF represented by Y (t) is a signal down-converted into a frequency f1 of the radio signal RF minus the local frequency f2.
- i is a natural number from 1 to n
- L is the loss by the signal distribution unit.
- the third intermediate frequency signal (IF_MG) is the amplification factor of the first to n-th amplifier section (151 to 154) of parallel amplification section 150 B i (i is generated is amplified by a parallel amplifier unit 150
- the natural number from 1 to n can be expressed as shown in equation (3).
- the individual third intermediate frequency signal IF1_MG amplified by the first amplifier 151 and the third intermediate frequency signal IF2_MG amplified by the second amplifier 152 can be seen that this difference is due to the amplification ratios B1 and B2. That is, by varying the amplification ratio of each of the amplifiers 151 to 154, the wideband wireless signal can be divided into a predetermined region, and the divided region signal is transmitted to each of the amplifiers 151 to 154 and ADCs ADC1 to ADCn. It is possible to handle by.
- 3 is an exemplary diagram illustrating a form in which one broadband is divided by such an amplifier.
- the operating range in the broadband wireless system is represented by the sum of the operating range of the wireless signal and the intermediate frequency of the receiver 120 and the ADC.
- the receiver 120 and the signal distributor 130 are implemented using a broadband high-speed operation element or device to prevent an increase in the complexity of the circuit, and at the same time, a low speed and a low cost in the remaining signal processing parts.
- a method of reducing the complexity and the cost of the circuit and improving the operation reliability is proposed.
- a wireless system when a wireless system performs amplification by fixed gain, it is generally configured to optimize the input level of the ADC at the maximum reception level of the wireless signal.
- the execution system 190 can accurately measure the resource of the signal due to the fixed gain, when the level of the received signal is lowered, the effective bit of the ADC is reduced, the bit resolution is lowered, and the operating range is reduced due to the reduction of the effective bit. Will be reduced.
- the input level can be relatively optimized even when the level of the received signal is lowered by dividing the received signal, that is, the wireless signal into several regions and using a plurality of parallel amplifiers having respective fixed amplification rates Bi.
- Amplification units 151 to 154 and ADCs were configured to prevent the reduction of valid bits. That is, in the conventional wireless system using one amplification unit having a fixed gain, the effective bit and the bit resolution are lowered when the wireless signal in the low signal level region 164 is received.
- the signal of the amplifier 164 and ADC (ADC4) optimized for this region is always used in the low signal level region 164 regardless of the height of the signal level. It is possible to secure one bit resolution and an operation range.
- the amplification ratios of the first to fourth amplifiers 151 to 154 and the number of divided regions are determined according to the performance of the ADCs ADC1 to ADCn, which play an important role in determining the operation range. That is, if the ADC has a high bit resolution and excellent analog-to-digital conversion performance, the number of amplifiers may be reduced, and in the opposite case, a larger number of amplifiers may be configured.
- the regions defined by each of the amplifiers 151 to 154 and the ADCs ADC1 to ADC4 may be set to partially overlap each other, but the present invention is not limited thereto.
- the discrete intermediate frequency signal IF_D output from the parallel ADC unit 170 is simultaneously output and provided to the execution system 190.
- the execution system must select a signal suitable for data processing among a plurality of discrete discrete frequency signals IF_D (IF1_D to IFn_D) provided at the same time.
- the execution system 190 includes a signal selector 191 implemented by a logic circuit or a signal processing algorithm.
- the signal selector 191 is configured to generate the most significant bit (MSB: Least Significant Bit) and least significant bit (LSB) of the discrete intermediate frequency signal IF_D, particularly the discrete intermediate frequency signals IF_D.
- MSB most significant bit
- LSB least significant bit
- the signal selector selects an output of the first ADC ADC1 and provides the selected first discrete intermediate frequency signal IF1_D to the data processor 193 to perform data processing.
- the output signals other than the nth discrete intermediate frequency signal IFn_D which are outputs of the nth amplifying unit 154 and the nth ADC (ADCn)
- the nth discrete intermediate frequency signal IFn_D is selected by the signal selector 191 and transmitted to the data processor 193.
- whether the signal is saturated may be determined by determining whether the MSB is recorded.
- the size comparison of the output discrete intermediate frequency signal IF_D can be easily performed by determining whether the MSB and the LSB are recorded.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Circuits Of Receivers In General (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
Claims (3)
- 광대역 무선 신호를 수신하여 처리하는 광대역 무선 시스템에 있어서,상기 광대역 무선 신호를 수신하는 안테나;상기 안테나로부터 상기 광대역 무선 신호를 제공받고, 신호처리하여 제1중간주파수신호로 변환하는 수신부;상기 제1중간주파수신호를 동일한 복수의 신호인 제2중간주파수신호로 변환하여 분배하는 신호분배부;상기 신호분배부로부터 제공되는 상기 제2중간주파수신호의 개별 제2중간주파수신호를 각각 다른 증폭률에 의해 증폭한 제3중간주파수신호를 생성하는 병렬증폭부;상기 병렬증폭부로부터의 상기 제3중간주파수신호의 개별 제3중간주파수신호 각각을 아날로그-디지털 변환하여 이산중간주파수신호를 생성하는 병렬 아날로그-디지털 변환부; 및상기 아날로그 디지털 변환부로부터의 상기 이산중간주파수신호의 개별 이산중간주파수신호를 분석하여 상기 개별 이산중간주파수신호 중 어느 하나를 선택하고, 선택된 개별 이산중간주파수신호를 처리하는 실행시스템;을 포함하며,상기 실행시스템은 상기 개별 이산중간주파수신호의 선택을 위해 상기 개별 이산중간주파수신호의 최상위 비트 기록여부 또는 최하위 비트의 기록 여부 또는 상기 개별 이산중간주파수신호의 크기를 비교하여 선택을 수행하는 것을 특징으로 하는 광대역 무선 시스템.
- 제 1 항에 있어서,상기 병렬증폭부는다른 증폭률을 가지며 상기 신호분배부와 각각 연결되어 상기 개별 제2중간주파수신호를 수신하여 증폭하는 복수의 증폭부를 포함하여 구성되는 것을 특징으로 하는 광대역 무선 시스템.
- 제 2 항에 있어서,상기 병렬 아날로그-디지털 변환부는상기 복수의 증폭부 각각과 개별적으로 연결되어, 상기 개별 제2중간주파수신호가 증폭되어 생성되는 상기 개별 제3중간주파수신호 각각을 변환하는 복수의 아날로그-디지털 변환기를 포함하여 구성되는 것을 특징으로 하는 광대역 무선 시스템.
Priority Applications (2)
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US13/130,021 US8428193B2 (en) | 2009-12-17 | 2010-12-09 | Broadband wireless system |
JP2012544375A JP2013514711A (ja) | 2009-12-17 | 2010-12-09 | 広帯域無線システム |
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KR10-2009-0126448 | 2009-12-17 | ||
KR1020090126448A KR100999376B1 (ko) | 2009-12-17 | 2009-12-17 | 광대역 무선 시스템 |
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WO2011074832A2 true WO2011074832A2 (ko) | 2011-06-23 |
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JP (1) | JP2013514711A (ko) |
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KR100999376B1 (ko) | 2009-12-17 | 2010-12-09 | (주)넥스윌 | 광대역 무선 시스템 |
KR101244835B1 (ko) * | 2012-09-17 | 2013-03-25 | 주식회사 디제이피 | 광대역 주파수 검출기 |
KR101308083B1 (ko) | 2012-12-17 | 2013-09-13 | 주식회사 디제이피 | 광대역 주파수 검출기기 |
CN104459295B (zh) * | 2014-11-26 | 2017-07-28 | 陕西航空电气有限责任公司 | 一种硬件自检测的采样电路 |
KR101896262B1 (ko) * | 2017-02-20 | 2018-09-10 | 한밭대학교 산학협력단 | 광대역 수신기 |
CN107682023A (zh) * | 2017-11-21 | 2018-02-09 | 锐捷网络股份有限公司 | 一种信息发射、接收装置和方法及无线访问节点 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100288196B1 (ko) * | 1999-03-04 | 2001-04-16 | 박종섭 | 광대역 무선 가입자망 단말기의 발진 방지 고주파 송신 제어 장치 |
US6631255B1 (en) * | 2000-06-28 | 2003-10-07 | Northrop Grumman Corporation | Multi-carrier receiver for a wireless telecommunication system |
US20030210746A1 (en) * | 2002-03-20 | 2003-11-13 | The Regents Of The University Of California | Radio transmission frequency digital signal generation |
WO2007145637A1 (en) * | 2006-06-16 | 2007-12-21 | Thomson Licensing | Multichannel digital cable tuner |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02246943A (ja) * | 1989-03-20 | 1990-10-02 | Matsushita Electric Ind Co Ltd | 超音波診断装置用a/d変換装置 |
JPH0332226A (ja) * | 1989-06-29 | 1991-02-12 | Yamaha Corp | A/d変換装置 |
JPH11136153A (ja) * | 1997-10-31 | 1999-05-21 | Nec Corp | 受信装置 |
JPH11340831A (ja) * | 1998-05-29 | 1999-12-10 | Toa Corp | 高精度a/d変換器 |
JP3828879B2 (ja) | 2003-05-23 | 2006-10-04 | 松下電器産業株式会社 | 検波回路 |
DE602004021751D1 (de) | 2003-08-07 | 2009-08-13 | Ntt Docomo Inc | Leistungsverstärker |
JP2007221297A (ja) * | 2006-02-15 | 2007-08-30 | Mitsubishi Electric Corp | マルチキャリア受信機 |
US7983642B2 (en) * | 2008-03-31 | 2011-07-19 | Analog Devices, Inc. | Method and system for detecting an out of band interferer in an RF receiver |
US8009075B2 (en) * | 2008-08-29 | 2011-08-30 | Broadcom Corporation | Analog to digital converter (ADC) with extended dynamic input range |
KR100999376B1 (ko) | 2009-12-17 | 2010-12-09 | (주)넥스윌 | 광대역 무선 시스템 |
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- 2009-12-17 KR KR1020090126448A patent/KR100999376B1/ko active IP Right Grant
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- 2010-12-09 US US13/130,021 patent/US8428193B2/en active Active
- 2010-12-09 JP JP2012544375A patent/JP2013514711A/ja active Pending
- 2010-12-09 WO PCT/KR2010/008809 patent/WO2011074832A2/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100288196B1 (ko) * | 1999-03-04 | 2001-04-16 | 박종섭 | 광대역 무선 가입자망 단말기의 발진 방지 고주파 송신 제어 장치 |
US6631255B1 (en) * | 2000-06-28 | 2003-10-07 | Northrop Grumman Corporation | Multi-carrier receiver for a wireless telecommunication system |
US20030210746A1 (en) * | 2002-03-20 | 2003-11-13 | The Regents Of The University Of California | Radio transmission frequency digital signal generation |
WO2007145637A1 (en) * | 2006-06-16 | 2007-12-21 | Thomson Licensing | Multichannel digital cable tuner |
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Publication number | Publication date |
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JP2013514711A (ja) | 2013-04-25 |
US8428193B2 (en) | 2013-04-23 |
US20110249761A1 (en) | 2011-10-13 |
KR100999376B1 (ko) | 2010-12-09 |
WO2011074832A3 (ko) | 2011-11-10 |
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