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Title:
TRANSMITTING APPARATUS, TRANSMITTING METHOD, RECEIVING APPARATUS AND RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2006/134949
Kind Code:
A1
Abstract:
A transmitting apparatus has a multiplexing means that multiplexes a common pilot channel, a shared control channel and a shared data channel; a means that performs an inverse Fourier transform of the multiplexed signal to produce symbols; and a means that transmits the produced symbols. The multiplexing means frequency multiplexes the shared control channel, which is used for demodulating the shared data channel including a payload, and the common pilot channel, which is used for demodulating the shared control channel and also used in common to a plurality of users, while time multiplexing the common pilot channel, shared control channel and shared data channel. If the number of the symbols constituting TTI decreases (the period per symbol becomes longer), the frequency of inserting the common pilot channel is reduced accordingly, whereby the transmission efficiencies of the channels other than the common pilot channel can be maintained.

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Inventors:
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
Application Number:
PCT/JP2006/311878
Publication Date:
December 21, 2006
Filing Date:
June 13, 2006
Export Citation:
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Assignee:
NTT DOCOMO INC (JP)
KISHIYAMA YOSHIHISA (JP)
HIGUCHI KENICHI (JP)
SAWAHASHI MAMORU (JP)
International Classes:
H04B1/707; H04J11/00; H04B7/04; H04B7/06; H04B7/10; H04J3/00; H04J13/18; H04J99/00; H04W16/28; H04W72/04; H04W76/00; H04W76/02
Foreign References:
JP2005006337A2005-01-06
JP2006516079A2006-06-15
JP2005525032A2005-08-18
JP2001203665A2001-07-27
JP2000201134A2000-07-18
Other References:
"Physical Channels and Multiplexing in Evolved UTRA Downlink", 3GPP TSG RAN WG1 AD HOC ON LTE, vol. R1-050590, 21 June 2005 (2005-06-21), XP003006923
KISHIYAMA Y. ET AL: "Evolved UTRA Kudari Link OFDM Musen Access ni Okeru Sector Koyu Chokko Keiretsu o Mochiiru Pirot Channel", 2005 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE KOEN RONBUNSHI 1, 7 September 2005 (2005-09-07), pages 445, XP003006924
Attorney, Agent or Firm:
Itoh, Tadahiko (Yebisu Garden Place Tower 20-3, Ebisu 4-Chome, Shibuya-K, Tokyo 32, JP)
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