Presentation 2006-07-21
CQI Reporting in OFDMA/TDD Systems with Cochannel Interference
Yoshitaka HARA, Kazuyoshi OSHIMA,
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Abstract(in English) This paper proposes a new uplink signalling to report the terminal's channel quality in multiple subbands to the base station (BS) using channel reciprocity in orthogonal frequency division multiple access / time division duplex (OFDMA/TDD) systems. In the proposed method, the terminal transmits uplink pilot signals in the subbands with different transmit power which is inversely proportional to the subband-based interference power. The BS can obtain knowledge of the terminal's received signal-to-interference-plus-noise power ratios (SINRs), measuring the pilot signal power. In performance evaluation, accuracy of the channel quality reporting and amount of the control signalling are examined. From numerical results, it is seen that the proposed method becomes effective as the number of subbands and terminals for channel quality reporting increases.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless communication / OFDMA / TDD / SINR / Signalling / Channel quality indication
Paper # RCS2006-94
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Conference Information
Committee RCS
Conference Date 2006/7/12(1days)
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Paper Information
Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) CQI Reporting in OFDMA/TDD Systems with Cochannel Interference
Sub Title (in English)
Keyword(1) Wireless communication
Keyword(2) OFDMA
Keyword(3) TDD
Keyword(4) SINR
Keyword(5) Signalling
Keyword(6) Channel quality indication
1st Author's Name Yoshitaka HARA
1st Author's Affiliation Mitsubishi Electric Information Technology Centre Europe B.V. (ITE)()
2nd Author's Name Kazuyoshi OSHIMA
2nd Author's Affiliation Mitsubishi Electric Information Technology Centre Europe B.V. (ITE)
Date 2006-07-21
Paper # RCS2006-94
Volume (vol) vol.106
Number (no) 168
Page pp.pp.-
#Pages 6
Date of Issue