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NO20051751L - Fremgangsmate og anordning for korrigering av fase- og amplitudeforskyvninger i en MIMO-radioinnretning - Google Patents

Fremgangsmate og anordning for korrigering av fase- og amplitudeforskyvninger i en MIMO-radioinnretning

Info

Publication number
NO20051751L
NO20051751L NO20051751A NO20051751A NO20051751L NO 20051751 L NO20051751 L NO 20051751L NO 20051751 A NO20051751 A NO 20051751A NO 20051751 A NO20051751 A NO 20051751A NO 20051751 L NO20051751 L NO 20051751L
Authority
NO
Norway
Prior art keywords
amplitude
phase
radio
signal
antenna path
Prior art date
Application number
NO20051751A
Other languages
English (en)
Inventor
Gary L Sugar
Chandra Vaidyanathan
Original Assignee
Ipr Licensing 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
Application filed by Ipr Licensing Inc filed Critical Ipr Licensing Inc
Publication of NO20051751L publication Critical patent/NO20051751L/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/11Monitoring; Testing of transmitters for calibration
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/0003Software-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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B1/0475Circuits with means for limiting noise, interference or distortion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B1/0483Transmitters with multiple parallel paths
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/21Monitoring; Testing of receivers for calibration; for correcting measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/21Monitoring; Testing of receivers for calibration; for correcting measurements
    • H04B17/22Monitoring; Testing of receivers for calibration; for correcting measurements for calibration of the receiver components
    • H04B17/221Monitoring; Testing of receivers for calibration; for correcting measurements for calibration of the receiver components of receiver antennas, e.g. as to amplitude or phase
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084Equal gain combining, only phase adjustments

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radio Transmission System (AREA)
  • Networks Using Active Elements (AREA)

Abstract

Teknikker for å korrigere for fase- og amplitudemistilpasninger i en radioinnretning, for å opprettholde kanalsymmetri ved kommunisering med en annen innretning ved bruk av MIMO-radiokommunikasjons-teknikker. Korreksjon for amplitude- og fasemistilpasningene mellom flerheten av sendere og flerheten av mottakere i en innretning kan gjøres ved basisbånd ved bruk av digital logikk (så som i modemet) i mottakerbanen, senderbanen eller begge baner i denne innretningen. I en innretning bestemmes amplitude- og faseforskyvninger mellom flerheten av radiotransmitter- og radiomottakerbaner ved måling av fase-og amplituderesponser ved tilførsel av et signal til en sender i en første antennebane i innretningen, og kobling av radiosignalet fra en første antenne- til en annen antennebane i denne innretningen, hvor signalet nedkonverteres ved hjelp av en mottaker som er forbundet med den annen antennebane, og tilsvarende kobling av et signal fra den annen antennebane til den første antennebane. Målinger fremskaffes mellom den første antennebane og hver av de andre antennebaner ved kobling av et signal i begge retninger mellom dem. Fase- og amplitudeforskyvningskorreksjonsverdier beregnes fra fase-og amplitudemålingene under en selvkalibreringsoperasjon eller -modus for innretningen, og brukes under en kjøreoperasjon eller - modus ved prosessering av basisbåndsende- og/eller mottakssignalene for å kompensere for fase- og amplitudeforskyvningene mellom flerheten av mottakerbaner i en innretning. Det kan være at amplitudeforskyvningskorreksjon ikke er nødvendig (eller valgfri) for visse radioimplementeringer eller MIMO-radioalgoritmer. Innretningen kan utføre selvkalibreringsmodus når innretningen slås på, og deretter periodisk senere. Selvkalibrering kan også utføres for en innretning i fabrikken.
NO20051751A 2002-09-10 2005-04-08 Fremgangsmate og anordning for korrigering av fase- og amplitudeforskyvninger i en MIMO-radioinnretning NO20051751L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40967702P 2002-09-10 2002-09-10
US10/457,293 US7031669B2 (en) 2002-09-10 2003-06-09 Techniques for correcting for phase and amplitude offsets in a MIMO radio device
PCT/US2003/028126 WO2004025841A2 (en) 2002-09-10 2003-09-09 Techniques for correcting for phase and amplitude offsets in a mimo radio device

Publications (1)

Publication Number Publication Date
NO20051751L true NO20051751L (no) 2005-06-08

Family

ID=31997848

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20051751A NO20051751L (no) 2002-09-10 2005-04-08 Fremgangsmate og anordning for korrigering av fase- og amplitudeforskyvninger i en MIMO-radioinnretning

Country Status (14)

Country Link
US (2) US7031669B2 (no)
EP (1) EP1547254B1 (no)
JP (1) JP4616011B2 (no)
KR (2) KR20070061917A (no)
CN (1) CN1751444B (no)
AT (1) ATE425595T1 (no)
AU (1) AU2003270416C1 (no)
BR (1) BR0314425A (no)
CA (1) CA2498676A1 (no)
DE (1) DE60326612D1 (no)
GE (1) GEP20074248B (no)
MX (1) MXPA05002678A (no)
NO (1) NO20051751L (no)
WO (1) WO2004025841A2 (no)

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