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WO2009072269A1 - Radio communication device and phase rotation amount setting method - Google Patents

Radio communication device and phase rotation amount setting method Download PDF

Info

Publication number
WO2009072269A1
WO2009072269A1 PCT/JP2008/003561 JP2008003561W WO2009072269A1 WO 2009072269 A1 WO2009072269 A1 WO 2009072269A1 JP 2008003561 W JP2008003561 W JP 2008003561W WO 2009072269 A1 WO2009072269 A1 WO 2009072269A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase rotation
rotation amount
communication device
radio communication
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/003561
Other languages
French (fr)
Japanese (ja)
Inventor
Akihiko Nishio
Masaru Fukuoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of WO2009072269A1 publication Critical patent/WO2009072269A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions, e.g. beam steering or quasi-co-location [QCL]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Transmission System (AREA)

Abstract

Provided is a radio communication device which can prevent degradation of an error ratio characteristic when using both of the CDD transmission and the CDM transmission in combination. The radio communication device includes: a phase rotation amount setting unit (108) which sets a cyclic delay diversity transmission phase rotation amount for phase rotation units (109-2 to 109-M) in such a manner that a phase rotation amount in a subcarrier containing a symbol block to be code-multiplexed is smaller than a phase rotation amount in a subcarrier containing a symbol not to be code-multiplexed; phase rotation units (109-2 to 109-M) which give a phase rotation for the cyclic delay diversity transmission to the symbol arranged in each of the subcarriers according to the phase rotation amount inputted from the phase rotation amount setting unit (108); and radio transmission units (112-1 to 112-M) which perform the cyclic delay diversity transmission of M pieces of OFDM symbols from M pieces of antennas.
PCT/JP2008/003561 2007-12-03 2008-12-02 Radio communication device and phase rotation amount setting method Ceased WO2009072269A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007312774 2007-12-03
JP2007-312774 2007-12-03

Publications (1)

Publication Number Publication Date
WO2009072269A1 true WO2009072269A1 (en) 2009-06-11

Family

ID=40717451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003561 Ceased WO2009072269A1 (en) 2007-12-03 2008-12-02 Radio communication device and phase rotation amount setting method

Country Status (1)

Country Link
WO (1) WO2009072269A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007083568A1 (en) * 2006-01-18 2007-07-26 Ntt Docomo, Inc. Communication device, mobile station, and method
JP2008236417A (en) * 2007-03-20 2008-10-02 Kddi Corp Wireless transmission device and wireless reception device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007083568A1 (en) * 2006-01-18 2007-07-26 Ntt Docomo, Inc. Communication device, mobile station, and method
JP2008236417A (en) * 2007-03-20 2008-10-02 Kddi Corp Wireless transmission device and wireless reception device

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"3GPP TSG RAN WG1 Meeting #48bis R1-071710", 26 March 2007, article KDDI: "Transmit Diversity for L1/L2 Control Channel with CDM Based Multiplexing", pages: 1 - 3 *
"Vehicular Technology Conference, 2005. VTC-2005-Fall. 2005", vol. 1, 25 September 2005, IEEE 62ND, article RONALD RAULEFS ET AL.: "Orthogonal Spreading with Transmit Diversity for multicarrier Systems", pages: 463 - 467 *
NTT DOCOMO: "Multi-Degree Cyclic Delay Diversity with Frequency-domain Channel Dependent Scheduling", 3GPP TSG RAN WG1 LTE AD HOC R1-061788, 27 June 2006 (2006-06-27), pages 1 - 6 *
SHARP: "Improved Performance of the Cyclic Shift Diversity Schemein the E-UTRA Downlink", 3GPP TSG-RAN WG1#46 R1-062255, 28 August 2006 (2006-08-28), pages 1 - 6 *
SIEMENS: "Time varying CDD/CSD", 3GPP TSG RAN WG1 LTE R1-062302, 28 August 2006 (2006-08-28), pages 1 - 7 *

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