Title:
RADIO TRANSMITTING APPARATUS, RADIO TRANSMITTING METHOD, STORAGE MEDIUM, AND BASEBAND CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2011/055833
Kind Code:
A1
Abstract:
Provided are a radio transmitting apparatus, a radio transmitting method, a storage medium and a baseband circuit whereby the interfering-avoiding performance, the transmission characteristic and the calculation amount required for the interfering avoidance can be optimized. A radio transmitting apparatus comprises: a switch determination means that performs, based on a given switch determination information, a switch determination of interfering-avoidance transmission means to be applied to each of a plurality of given groups of the frequency domains of transport signals and that outputs a switch determination result; a signal separation means that separates, based on the switch determination result, the transport signals for each group; a first interfering-avoidance transmission means that receives the transport signals of each group and uses a time domain processing to reduce the leakage power outside the transmission band; a second interfering-avoidance transmission means that receives the transport signals of each group and uses a frequency domain processing to reduce the leakage power outside the transmission band; and a combination means that combines the transport signals supplied from the first and second interfering-avoidance transmission means and having been interfering-avoidance processed. The radio transmitting apparatus uses one of the first and second interfering-avoidance transmission means to transmit the transport signals for each group.
Inventors:
FUTATSUGI YASUNORI (JP)
ARIYOSHI MASAYUKI (JP)
ARIYOSHI MASAYUKI (JP)
Application Number:
PCT/JP2010/069874
Publication Date:
May 12, 2011
Filing Date:
November 02, 2010
Export Citation:
Assignee:
NEC CORP (JP)
FUTATSUGI YASUNORI (JP)
ARIYOSHI MASAYUKI (JP)
FUTATSUGI YASUNORI (JP)
ARIYOSHI MASAYUKI (JP)
International Classes:
H04J11/00
Domestic Patent References:
| WO2008105214A1 | 2008-09-04 |
Foreign References:
| JP2007282228A | 2007-10-25 | |||
| JP2006186733A | 2006-07-13 | |||
| JP2008078790A | 2008-04-03 |
Other References:
YASUNORI FUTATSUGI ET AL.: "A Study on Interference Suppression Technique by Partitioned Frequency- and Time-domain Processing for Dynamic Spectrum Access", IEICE TECHNICAL REPORT, vol. 110, no. 41, May 2010 (2010-05-01), pages 49 - 55, XP008160318
RUEI-SYUN WANG ET AL.: "Low Complexity Design and Implementation of Active Interference Cancellation", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS, 2009., 23 July 2009 (2009-07-23), pages 272 - 276, XP008156079
C. SAHNINE ET AL.: "Towards a High-Throughput and Low Power Reconfigurable Architecture of Advanced OFDM Modulator for Software-Defined Radio Systems", PROCEEDINGS OF THE IEEE NORTHEAST WORKSHOP ON CIRCUITS AND SYSTEMS, 2007. NEWCAS 2007, 5 August 2007 (2007-08-05), pages 1205 - 1208, XP008156083
B. E. PRIYANTO; T.B.SORENSEN; O.K.JENSEN; T.LARSEN; T.KOLDING; P.MOGENSEN: "A spectrum shaping technique to control spectrum emission of UTRA LTE user equipment", NORCHIP, 2007
H. YAMAGUCHI: "Active interference cancellation technique for MB-OFDM cognitive radio", 34TH EMC, 2004
P. TARASAK; F. CHIN; Z. LIN; X. PENG: "Further enhancement for active interference cancellation on MB-OFDM UWB transmission", VTC 2008-FALL, 2008
RUEI-SYUN WANG ET AL.: "Low Complexity Design and Implementation of Active Interference Cancellation", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS, 2009., 23 July 2009 (2009-07-23), pages 272 - 276, XP008156079
C. SAHNINE ET AL.: "Towards a High-Throughput and Low Power Reconfigurable Architecture of Advanced OFDM Modulator for Software-Defined Radio Systems", PROCEEDINGS OF THE IEEE NORTHEAST WORKSHOP ON CIRCUITS AND SYSTEMS, 2007. NEWCAS 2007, 5 August 2007 (2007-08-05), pages 1205 - 1208, XP008156083
B. E. PRIYANTO; T.B.SORENSEN; O.K.JENSEN; T.LARSEN; T.KOLDING; P.MOGENSEN: "A spectrum shaping technique to control spectrum emission of UTRA LTE user equipment", NORCHIP, 2007
H. YAMAGUCHI: "Active interference cancellation technique for MB-OFDM cognitive radio", 34TH EMC, 2004
P. TARASAK; F. CHIN; Z. LIN; X. PENG: "Further enhancement for active interference cancellation on MB-OFDM UWB transmission", VTC 2008-FALL, 2008
Attorney, Agent or Firm:
ASAI, TOSHIO (JP)
Toshio Asai (JP)
Toshio Asai (JP)
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