MULTI-TERM DEMAPPING FOR MULTI-CHANNEL WIRELESS COMMUNICATION

Title:

MULTI-TERM DEMAPPING FOR MULTI-CHANNEL WIRELESS COMMUNICATION

Document Type and Number:

WIPO Patent Application WO/2011/106264

Kind Code:

A3

Abstract:

Providing for reduced complexity or improved accuracy in de-mapping received wireless data streams for multi-channel wireless communication is described herein. By way of example, a low-complexity likelihood algorithm can be employed to de-map data bits from the wireless data streams. In one particular example, the likelihood algorithm can approximate a received bit with a subset of received wireless symbols correlated the bit, reducing algorithm complexity. In other examples, a limited set of received wireless symbols can be employed for the subset, further reducing algorithm complexity. According to at least one other example, logarithmic terms of the algorithm can be approximated with non-logarithmic functions, such as a look-up table, series expansion, polynomial approximation, or the like. These approximations can enhance symbol de-mapping accuracy while maintaining or improving processing overhead for a wireless receiver.

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Inventors:

MCCLOUD MICHAEL L (US)
BREHLER MATTHIAS (US)
PARK JU WON (US)
PARK JONG HYEON (US)
KIM JE WOO (US)
KANG INYUP (US)
BANISTER BRIAN C (US)

Application Number:

PCT/US2011/025552

Publication Date:

October 27, 2011

Filing Date:

February 18, 2011

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Assignee:

QUALCOMM INC (US)
MCCLOUD MICHAEL L (US)
BREHLER MATTHIAS (US)
PARK JU WON (US)
PARK JONG HYEON (US)
KIM JE WOO (US)
KANG INYUP (US)
BANISTER BRIAN C (US)

International Classes:

H04L25/03

Domestic Patent References:

WO2007062021A2

2007-05-31

Foreign References:

EP1411693A2

2004-04-21

Other References:

IBING A ET AL: "On the Relation of MIMO APP Detection and SIMO Maximum Ratio Combining", GLOBAL TELECOMMUNICATIONS CONFERENCE, 2009. GLOBECOM 2009. IEEE, IEEE, PISCATAWAY, NJ, USA, 30 November 2009 (2009-11-30), pages 1 - 6, XP031645742, ISBN: 978-1-4244-4148-8

Attorney, Agent or Firm:

TAM, Kam, T. (5775 Morehouse DriveSan Diego, CA, US)

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