JP5864643B2 - 多重アンテナシステムにおける測定参照信号の送信方法 - Google Patents
多重アンテナシステムにおける測定参照信号の送信方法 Download PDFInfo
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- 238000005259 measurement Methods 0.000 title claims description 94
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- 238000012986 modification Methods 0.000 description 2
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- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- 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
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- 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
-
- 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
- H04L5/0028—Variable division
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/0082—Timing of allocation at predetermined intervals
-
- 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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0092—Indication of how the channel is divided
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Description
それ以外のとき、β=0
それ以外のとき、β=0
Claims (9)
- 端末が測定参照信号(SRS)を送信する方法であって、
前記端末が基地局から上位階層パラメータを受信する段階と、
前記端末が基本シーケンスに第1循環シフトを適用して第1アンテナポート用の第1SRSを発生する段階であって、前記第1循環シフトは前記上位階層パラメータを用いて決定される、段階と、
前記端末が前記基本シーケンスに第2循環シフトを適用して、前記第1アンテナポートとは異なる第2アンテナポート用の第2SRSを発生する段階であって、前記第2循環シフトは前記上位階層パラメータを用い、前記第1循環シフトに対して最大間隔を有するように決定される、段階と、
前記端末が前記第1SRS及び前記第2SRSを時間領域のサブフレームの最後のシンボル及び周波数領域の副搬送波にマッピングする段階と、
前記端末が前記第1SRS及び前記第2SRSを、それぞれ前記第1アンテナポート及び前記第2アンテナポートを介して前記基地局へ送信する段階と、
を有し、
前記周波数領域における前記第1SRSの開始位置及び前記第2SRSの開始位置は、前記第1SRS及び前記第2SRSのそれぞれについて設定される、方法。 - 前記上位階層パラメータは、{0,1,2,3,4,5,6,7}のうち一つの値を有する、請求項1に記載の方法。
- 前記第2循環シフトは、アンテナポートの数に応じて、前記第1循環シフトに対して前記最大間隔を有する、請求項1に記載の方法。
- 前記上位階層パラメータは、SoundingRsUI−Config情報要素(IE)に含まれるcyclicShiftパラメータである、請求項1に記載の方法。
- 無線通信システムにおける端末(UE)であって、
無線信号を送信又は受信する送受信器と、
前記送受信器と接続されたプロセッサとを備え、
前記プロセッサは、
基地局から上位階層パラメータを受信し、
基本シーケンスに第1循環シフトを適用して第1アンテナポート用の第1SRSを発生し、前記第1循環シフトは前記上位階層パラメータを用いて決定され、
前記基本シーケンスに第2循環シフトを適用して、前記第1アンテナポートとは異なる第2アンテナポート用の第2SRSを発生し、前記第2循環シフトは前記上位階層パラメータを用い、前記第1循環シフトに対して最大間隔を有するように決定され、
前記第1SRS及び前記第2SRSを時間領域のサブフレームの最後のシンボル及び周波数領域の副搬送波にマッピングし、
前記第1SRS及び前記第2SRSを、それぞれ前記第1アンテナポート及び前記第2アンテナポートを介して前記基地局へ送信するように構成され、
前記周波数領域における前記第1SRSの開始位置及び前記第2SRSの開始位置は、前記第1SRS及び前記第2SRSのそれぞれについて設定される、端末。 - 前記上位階層パラメータは、{0,1,2,3,4,5,6,7}のうち一つの値を有する、請求項5に記載の端末。
- 前記第2循環シフトは、アンテナポートの数に応じて、前記第1循環シフトに対して前記最大間隔を有する、請求項5に記載の端末。
- 前記上位階層パラメータは、SoundingRsUI−Config情報要素(IE)に含まれるcyclicShiftパラメータである、請求項5に記載の端末。
- 前記第1SRS及び前記第2SRSを前記周波数領域で副搬送波にマッピングする前記段階についての情報は上位階層によって提供される、請求項1に記載の方法。
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US14443109P | 2009-01-13 | 2009-01-13 | |
US61/144,431 | 2009-01-13 | ||
KR10-2009-0076018 | 2009-08-18 | ||
KR1020090076018A KR101639810B1 (ko) | 2009-01-13 | 2009-08-18 | 무선통신 시스템에서 사운딩 참조신호의 전송방법 |
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EP (1) | EP2377254A4 (ja) |
JP (2) | JP5502105B2 (ja) |
KR (2) | KR101639810B1 (ja) |
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JP2012514375A (ja) | 2012-06-21 |
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