WO2004015884A2 - Communications en debit eleve et bande ultra large - Google Patents

Communications en debit eleve et bande ultra large Download PDF

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Publication number
WO2004015884A2
WO2004015884A2 PCT/US2003/025809 US0325809W WO2004015884A2 WO 2004015884 A2 WO2004015884 A2 WO 2004015884A2 US 0325809 W US0325809 W US 0325809W WO 2004015884 A2 WO2004015884 A2 WO 2004015884A2
Authority
WO
WIPO (PCT)
Prior art keywords
signal
frequency
data
mixer
harmonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/025809
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English (en)
Other versions
WO2004015884A3 (fr
Inventor
Kazimierz Siwiak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALERON Inc
Original Assignee
ALERON Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/436,646 external-priority patent/US7206334B2/en
Application filed by ALERON Inc filed Critical ALERON Inc
Priority to AU2003263886A priority Critical patent/AU2003263886A1/en
Publication of WO2004015884A2 publication Critical patent/WO2004015884A2/fr
Publication of WO2004015884A3 publication Critical patent/WO2004015884A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/692—Hybrid techniques using combinations of two or more spread spectrum techniques
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/717—Pulse-related aspects
    • H04B1/7174—Pulse generation
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/719—Interference-related aspects
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71632—Signal aspects
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/71637—Receiver aspects

Definitions

  • an RF transmitter includes a reference signal generator, a signal generator, and a mixer.
  • an RF receiver in another exemplary embodiment, includes two mixers, a first mixer and a second mixer.
  • the receiver further includes an integrator/sampler and a signal generator.
  • FIG. 2 illustrates exemplary signal waveforms corresponding to a high data-rate UWB apparatus.
  • FIG. 3 depicts an exemplary embodiment of a high data-rate UWB transmitter according to the invention.
  • FIG. 12 depicts a timing relationship between several signals in an exemplary embodiment according to the invention.
  • FIG. 19 shows an exemplary embodiment 19 of a differential receiver according to the invention.
  • FIG. 20 illustrates a set of offset quadrature phase shift keyed (OQPSK) UWB signals in an exemplary embodiment according to the invention.
  • FIG. 23 illustrates an exemplary embodiment of a receiver according to the invention for receiving independently modulated harmonic signals.
  • FIG. 25 shows a Fourier transform of the signal in FIG. 24.
  • FIG. 26 illustrates sample waveforms in an exemplary embodiment of a transmitter according to the mvention.
  • FIG. 27 depicts an exemplary in-phase channel pulse as a function of time in an illustrative embodiment according to the invention.
  • FIG. 33 depicts two signals as a function of time in other illustrative embodiments according to the invention.
  • FIG. 34 shows the spectra resulting from using the signal shaping shown in FIG. 33.
  • FIG. 35 illustrates a schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 36 illustrates a schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 37 illustrates a high level schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 38 illustrates a schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 39 illustrates a more detailed schematic view of a portion of the receiver illustrated in FIG. 38.
  • FIG. 40 illustrates a high level schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 41 illustrates a channel impulse response as might occur in a multipath environment, representing an embodiment of the invention.
  • FIG. 42 illustrates a 7 length Barker sequence template signal and a resulting transformed signal, representing an embodiment of the invention.
  • FIG. 43 illustrates a schematic view of a transmitter, representing an embodiment of the invention.
  • FIG. 44 illustrates ultra wideband system capacities, representing embodiments of the invention.
  • FIG. 45 illustrates a spectram analysis view of a multi-channel system, representing an embodiment of the invention.
  • FIG. 46 illustrates a spectrum analysis view of a multi-channel system, representing an embodiment of the invention.
  • FIG. 49 illustrates schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 50 illustrates a time domain view of a two 500 MHz bandwith PSK signals, representing an embodiment of the invention.
  • FIG. 52 illustrates a schematic view of a receiver, representing an embodiment of the invention.
  • FIG. 54 illustrates a schematic view of a receiver, representing an embodiment of the invention.
  • a chip refers to a signal element, such as depicted in FIG. I IA or FIG. 11B.
  • a chip refers to a single element in a sequence of elements used to generate the transmitted signal.
  • the transmitted signal results from multiplying the sequence of chips (the chip sequence) by a spreading code, i.e., the code that spreads the transmitted signal spread over a relatively wide band. Multiple chips in proportion to a desired energy level per bit encode each data bit.
  • f 0 and Af denote, respectively, the center operating frequency and the desired bandwidth.
  • n the range of 1 to 42.
  • a 500-MHz-wide UWB system operating below (by half the bandwidth) the current FCC Part 15 limit frequency of 10.6 GHz results in:
  • n 116,000.
  • persons skilled in the art with the benefit of the description of the invention may choose virtually any appropriate ranges of values for n, depending on the performance and design specifications and requirements for a given application.
  • FIG. 1 illustrates several PSD profiles for various values of n (the number of carrier cycles per chip).
  • antennas are of the "constant gain with frequency” types, and result in systems that have frequency dependent propagation characteristics.
  • Other antennas for example, horn antennas, are of the “constant aperture” variety, and produce frequency- independent propagation behavior.
  • exemplary embodiments according to the invention use "constant aperture with frequency” antennas, although one may employ other types of antenna, as persons of ordinary skill in the art who have the benefit of the description of the invention understand.
  • the number of the PN chips per data bit is a measure of coding gain useful in mitigating against interference and against multipath impairments.
  • using a larger number of chips per data bit provides one mechanism for reducing the effects of interference and multipath.
  • the clock reference parameters and the harmonic earners are selected so that the PSD of the high data rate UWB transmissions coexist with wireless devices operating in the 2.4 GHz ISM band and in the 5 GHz UN ⁇ bands.
  • the composite signal S constitutes a sum of harmonic carriers over a selected range, n.
  • n the sum of harmonic carriers
  • cosine harmonics may also add cosine harmonics to implement a quadrature UWB communication apparatus.
  • the mask specifies emissions at 10.6 GHz of at least -10 dB from the peak (marker denoted as 266 in FIG. 16).
  • reference signal 2322 When receiver 2300 locks onto a desired RF signal, reference signal 2322 constitutes the same as the reference signal used in the conesponding transmitter for the RF signal. For example, referring to FIGS. 22 and 23, when receiver 2300 locks onto the signal transmitted by transmitter 220, reference signal 2322 constitutes a signal similar to the reference signal that clock reference 41 generates (see FIG. 22). In other words, PLL 2319 generates reference signal 2322 such that it has a frequency f osc .
  • the output of mixer 2316 feeds one input of mixer 2314.
  • Receiver 2300 uses the output of mixer 2314 to control the feedback loop that includes PLL 2319 so that the output of mixer 2316 matches the RF signals received from antenna 58.
  • the confrol loop includes integrator/sampler 2303, controller 2306, and PLL 2319.
  • communication apparatus and systems according to the invention may use various frequency channels.
  • varying the value of m as a function of time varies the use of those channels as a function of time.
  • By varying the frequency and channel timing plans one may design and implement a wide variety of communication apparatus and system, as desired.
  • Table 3 shows an example of a channel frequency and timing plan in an illustrative embodiment of a communication apparatus or system according to the invention:
  • Output signal 2204A of signal shaping circuitry 2218 constitutes a rectified cosine signal, and its spectram contains less high-frequency content than does the spectrum of data signals 2206. Accordingly, output signal 2212 of mixer 2204 and, hence, the transmitted signal, has side lobes with lower levels.
  • Fig. 36 shows the receiver elements fed by dc power lines form power management circuit 28 which in turn is controlled by control line 38.
  • Fig. 37 shows a higher level block diagram of the receiver system and identifies the microprocessor 32 with watchdog timer output 34 for signaling the power management circuit to cycle power on and off to the rest of the receiver circuits. The timing of the power cycling is coordinated with the fransmission protocol. For example, assume a transmission that contains a repeated sequence of codes, one of which matches a stored code in 24.
  • a high capacity data ultra-wideband (UWB) data transmitter and receiver system can be based on a well known binary phase shift keyed (BPSK) modulation of OWB pulses.
  • This invention can include a receiving system which includes a channel equalizer.
  • the channel equalizer taps additional functions like RAKE fingers in a RAKE receiver, thus additional multipath energy is collected by the receiver, increasing its effective sensitivity.
  • the LFS can include a low complexity digital filter for filtering the base-band data signal.
  • the reference clock frequency, the data rate, and the emission frequencies can be harmonically related, and the emission channel frequencies can be added in scalable fashion to increase the available system data capacity.
  • the LFS and HFS circuits can be low complexity circuits which can be implemented in low power CMOS integrated circuits.
  • An advantage of the invention is that it can be ideal for a low cost DPSK receiver with a simple RAKE.
  • the invention can utilize a high performance receiver with a channel equalization RAKE.
  • the invention can also use a pulse sampler receiver, especially if the pulses are time-coded. Refe ⁇ ing to Fig. 44, several system capacities are illustrated.
  • a multi-channel system is depicted.
  • the isolation between channels is 19.2 dB from frequency separation and 4.3 dB for 24 ns time separation: 23.6 dB total
  • the spectra shown in various figures are representative of transmitted and emitted specfra. Radio wave propagation in free space exhibits no frequency dependency, so the field strength PSD at the receiver is the same as the fransmitted PSD, and the signal attenuates as l/(4 ⁇ r 2 ). As noted above, if one receives the signal with a constant- aperture type of antenna, then the received spectrum equals the fransmitted spectram.
  • An example of a constant-aperture antenna is a wide-band horn or a wide-band parabola whose gain increases as the square of frequency.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

L'invention concerne des systèmes et des procédés de communication en débit élevé et bande ultra large. Un des ces procédés consiste à filtrer une impulsion de données numériques possédant un débit de synchronisation de données par mélange d'une impulsion faisant fonction de filtre avec cette impulsion de données numériques, à générer une harmonique d'oscillateur d'horloge revêtant l'aspect d'une fréquence centrale d'émission de signal à étalement de spectre de fréquence et à mélanger l'impulsion de données numériques filtrées avec l'harmonique du signal d'oscillateur d'horloge, ce qui permet d'obtenir une relation harmonique caractéristique entre la fréquence d'oscillateur d'horloge, le débit de synchronisation de données et la fréquence centrale des émissions de signaux.
PCT/US2003/025809 2002-08-07 2003-08-07 Communications en debit eleve et bande ultra large Ceased WO2004015884A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003263886A AU2003263886A1 (en) 2002-08-07 2003-08-07 Harmonic ultra-wideband high data-rate communications

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US40171102P 2002-08-07 2002-08-07
US60/401,711 2002-08-07
US40267702P 2002-08-12 2002-08-12
US60/402,677 2002-08-12
US45153803P 2003-03-03 2003-03-03
US60/451,538 2003-03-03
US10/436,646 US7206334B2 (en) 2002-07-26 2003-05-13 Ultra-wideband high data-rate communication apparatus and associated methods
US10/436,646 2003-07-22

Publications (2)

Publication Number Publication Date
WO2004015884A2 true WO2004015884A2 (fr) 2004-02-19
WO2004015884A3 WO2004015884A3 (fr) 2004-04-01

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AU (1) AU2003263886A1 (fr)
WO (1) WO2004015884A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
DE102004042118B4 (de) * 2004-08-30 2017-04-20 René Zimmer Verfahren zur Erzeugung von UWB-Impulsen
CN112305477A (zh) * 2019-07-24 2021-02-02 西门子(深圳)磁共振有限公司 借助局部线圈的宽带信号进行数据传输的装置、系统和方法
CN114097203A (zh) * 2019-12-31 2022-02-25 深圳迈瑞生物医疗电子股份有限公司 信号发送电路、信号接收电路及便携式监护设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677927A (en) * 1994-09-20 1997-10-14 Pulson Communications Corporation Ultrawide-band communication system and method
KR100365789B1 (ko) * 1998-01-20 2003-05-09 삼성전자 주식회사 병렬도약직접시퀀스/느린주파수도약복합코드분할다중접속시스템
WO2001076086A2 (fr) * 2000-03-29 2001-10-11 Time Domain Corporation Systeme et procede correspondant d'utilisation de recepteurs a correlateurs multiples dans un systeme radio a impulsions

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
DE102004042118B4 (de) * 2004-08-30 2017-04-20 René Zimmer Verfahren zur Erzeugung von UWB-Impulsen
CN112305477A (zh) * 2019-07-24 2021-02-02 西门子(深圳)磁共振有限公司 借助局部线圈的宽带信号进行数据传输的装置、系统和方法
CN112305477B (zh) * 2019-07-24 2024-01-30 西门子(深圳)磁共振有限公司 借助局部线圈的宽带信号进行数据传输的装置、系统和方法
CN114097203A (zh) * 2019-12-31 2022-02-25 深圳迈瑞生物医疗电子股份有限公司 信号发送电路、信号接收电路及便携式监护设备
CN114097203B (zh) * 2019-12-31 2024-02-23 深圳迈瑞生物医疗电子股份有限公司 信号发送电路、信号接收电路及便携式监护设备

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Publication number Publication date
AU2003263886A1 (en) 2004-02-25
AU2003263886A8 (en) 2004-02-25
WO2004015884A3 (fr) 2004-04-01

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