WO2008094283A3 - System, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems - Google Patents

System, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems Download PDF

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Publication number
WO2008094283A3
WO2008094283A3 PCT/US2007/071224 US2007071224W WO2008094283A3 WO 2008094283 A3 WO2008094283 A3 WO 2008094283A3 US 2007071224 W US2007071224 W US 2007071224W WO 2008094283 A3 WO2008094283 A3 WO 2008094283A3
Authority
WO
WIPO (PCT)
Prior art keywords
victim
ultra
tone
power
avoidance
Prior art date
Application number
PCT/US2007/071224
Other languages
French (fr)
Other versions
WO2008094283A2 (en
Inventor
Sridhar Rajagopal
Brian C Joseph
Syed Nadeem Ahmed
Yaming Zhang
Jr Sidney B Schrum
Original Assignee
Wiquest Communications Inc
Sridhar Rajagopal
Brian C Joseph
Syed Nadeem Ahmed
Yaming Zhang
Jr Sidney B Schrum
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
Application filed by Wiquest Communications Inc, Sridhar Rajagopal, Brian C Joseph, Syed Nadeem Ahmed, Yaming Zhang, Jr Sidney B Schrum filed Critical Wiquest Communications Inc
Publication of WO2008094283A2 publication Critical patent/WO2008094283A2/en
Publication of WO2008094283A3 publication Critical patent/WO2008094283A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

A system, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems is provided. A detect and avoid module may calculate power averages of OFDM tones. The power of tones may then be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The ultra-wideband subsystem may be configured with known bands of victim services of other RF systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.
PCT/US2007/071224 2006-06-14 2007-06-14 System, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems WO2008094283A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US80479406P 2006-06-14 2006-06-14
US60/804,794 2006-06-14
US11/762,659 US7869529B2 (en) 2006-06-14 2007-06-13 System, method and computer-readable medium for detection and avoidance (DAA) of victim services in ultra-wideband systems (UWB)
US11/762,659 2007-06-13

Publications (2)

Publication Number Publication Date
WO2008094283A2 WO2008094283A2 (en) 2008-08-07
WO2008094283A3 true WO2008094283A3 (en) 2009-02-12

Family

ID=38861424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/071224 WO2008094283A2 (en) 2006-06-14 2007-06-14 System, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems

Country Status (2)

Country Link
US (1) US7869529B2 (en)
WO (1) WO2008094283A2 (en)

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Publication number Publication date
US20070291636A1 (en) 2007-12-20
US7869529B2 (en) 2011-01-11
WO2008094283A2 (en) 2008-08-07

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