TW200707992A - Space-frequency equalization for oversampled received signals - Google Patents

Space-frequency equalization for oversampled received signals

Info

Publication number
TW200707992A
TW200707992A TW095115384A TW95115384A TW200707992A TW 200707992 A TW200707992 A TW 200707992A TW 095115384 A TW095115384 A TW 095115384A TW 95115384 A TW95115384 A TW 95115384A TW 200707992 A TW200707992 A TW 200707992A
Authority
TW
Taiwan
Prior art keywords
space
frequency
equalization
frequency equalization
combines
Prior art date
Application number
TW095115384A
Other languages
Chinese (zh)
Other versions
TWI336193B (en
Inventor
Byoung-Hoon Kim
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200707992A publication Critical patent/TW200707992A/en
Application granted granted Critical
Publication of TWI336193B publication Critical patent/TWI336193B/en

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Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)

Abstract

Techniques for performing space-frequency equalization and spatial equalization in the frequency domain are described. Space-frequency equalization combines signal components across both space and frequency dimensions whereas spatial equalization combines signal components across space. A receiver obtains input symbols for multiple (M) signal copies from multiple (R) receive antennas and multiple (C) times oversampling, where M is equal to R times C. For space-frequency equalization, the receiver derives equalizer coefficients for the M signal copies, e.g., based on MMSE criterion, filters the input symbols for the M signal copies with the equalizer coefficients, and combines the filtered symbols for the M signal copies to obtain output symbols. Space-frequency equalization may be used for some frequency bins and spatial equalization may be used for other frequency bins to reduce complexity.
TW95115384A 2005-04-28 2006-04-28 Method and apparatus for space-frequency equalization for oversampled received signals TWI336193B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67658605P 2005-04-28 2005-04-28

Publications (2)

Publication Number Publication Date
TW200707992A true TW200707992A (en) 2007-02-16
TWI336193B TWI336193B (en) 2011-01-11

Family

ID=45075059

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95115384A TWI336193B (en) 2005-04-28 2006-04-28 Method and apparatus for space-frequency equalization for oversampled received signals

Country Status (1)

Country Link
TW (1) TWI336193B (en)

Also Published As

Publication number Publication date
TWI336193B (en) 2011-01-11

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