JP2006526353A - 無線通信のためのチャネル化コードの割り当て方法及び装置 - Google Patents
無線通信のためのチャネル化コードの割り当て方法及び装置 Download PDFInfo
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- JP2006526353A JP2006526353A JP2006508522A JP2006508522A JP2006526353A JP 2006526353 A JP2006526353 A JP 2006526353A JP 2006508522 A JP2006508522 A JP 2006508522A JP 2006508522 A JP2006508522 A JP 2006508522A JP 2006526353 A JP2006526353 A JP 2006526353A
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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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0619—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 weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- 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
- H04B7/0602—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 antenna switching
- H04B7/0608—Antenna selection according to transmission parameters
- H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
-
- 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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0619—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 weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
Abstract
Description
Claims (20)
- 複数の端末からチャネル情報を受信する段階と、
前記受信されたチャネル情報に基づいて各送信アンテナのためのチャネル化コードを割り当てる段階と、
前記割り当てられたチャネル化コードによって各送信アンテナでデータを送信する段階と
を含むことを特徴とする多重アンテナ通信システムにおける送信方法。 - 前記チャネル情報は、
各端末のために各アンテナで転送できるビット数に関連した情報であることを特徴とする請求項1に記載の多重アンテナ通信システムにおける送信方法。 - 前記チャネル情報は、
データ転送に使用されるチャネルの品質、状況又は状態に関連した情報であることを特徴とする請求項1に記載の多重アンテナ通信システムにおける送信方法。 - 前記チャネル化コードの割り当ては、
転送できるビット数によって複数の端末に順次行われることを特徴とする請求項1に記載の多重アンテナ通信システムにおける送信方法。 - 前記順次行われるチャネル化コードの割り当ては、
最多のビットが転送できる端末に先に行われた後、次に多いビットが転送できる端末に行われることを特徴とする請求項4に記載の多重アンテナ通信システムにおける送信方法。 - 1つのチャネル化コードが割り当てられると、複数のユーザーが前記1つのチャネル化コードを共有することを特徴とする請求項4に記載の多重アンテナ通信システムにおける送信方法。
- 受信段階、割り当て段階、送信段階は、
全て閉ループMIMO通信システムで行われることを特徴とする請求項1に記載の多重アンテナ通信システムにおける送信方法。 - 前記MIMOシステムは、
MSB技術を使用することを特徴とする請求項7に記載の多重アンテナ通信システムにおける送信方法。 - 端末を区分するためのチャネル化コードの数がサービスを受けている端末の数より少ない場合、チャネル状態に基づいて複数の端末に同一のチャネル化コードを割り当てることを特徴とする請求項8に記載の多重アンテナ通信システムにおける送信方法。
- 前記同一のチャネル化コードは、
前記チャネル化コードを共有する複数の端末の加重値に関連する値が所定閾値より小さい場合にのみ割り当てられることを特徴とする請求項9に記載の多重アンテナ通信システムにおける送信方法。 - 複数の端末からチャネル情報を受信する受信機と、
前記受信されたチャネル情報に基づいて各送信アンテナにチャネル化コードを割り当てる割り当て部と、
前記割り当てられたチャネル化コードによって各送信アンテナでデータを転送する送信機と
を含むことを特徴とするマルチ送信アンテナを備えた基地局装置。 - 前記チャネル情報は、
各端末の各アンテナで転送できるビット数に関連した情報であることを特徴とする請求項11に記載のマルチ送信アンテナを備えた基地局装置。 - 前記チャネル情報は、
データ転送に使用されるチャネルの品質、条件、状態に関連した情報であることを特徴とする請求項11に記載のマルチ送信アンテナを備えた基地局装置。 - 前記チャネル化コードの割り当ては、
転送できるビット数によって複数の端末に順次行われることを特徴とする請求項11に記載のマルチ送信アンテナを備えた基地局装置。 - 前記順次行われるチャネル化コードの割り当ては、
最多のビットが転送できる端末に先に行われた後、次に多いビットが転送できる端末に行われることを特徴とする請求項14に記載のマルチ送信アンテナを備えた基地局装置。 - 1つのチャネル化コードが割り当てられると、複数のユーザーが前記1つのチャネル化コードを共有することを特徴とする請求項14に記載のマルチ送信アンテナを備えた基地局装置。
- 前記受信機、割り当て部、送信機は、
全て閉ループMIMO通信システムで動作することを特徴とする請求項11に記載のマルチ送信アンテナを備えた基地局装置。 - 前記MIMOシステムは、
MSB技術を使用することを特徴とする請求項17に記載のマルチ送信アンテナを備えた基地局装置。 - 端末を区分するためのチャネル化コードの数がサービスを受けている端末の数より少ない場合、チャネル状態に基づいて複数の端末に同一のチャネル化コードを割り当てることを特徴とする請求項18に記載のマルチ送信アンテナを備えた基地局装置。
- 前記同一のチャネル化コードは、
前記チャネル化コードを共有する複数の端末の加重値に関連する値が所定の閾値より小さい場合にのみ割り当てられることを特徴とする請求項19に記載のマルチ送信アンテナを備えた基地局装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020030031013A KR20040098768A (ko) | 2003-05-15 | 2003-05-15 | 다중입출력 무선통신 시스템에서의 신호 전송 방법 |
KR1020030030988A KR20040098752A (ko) | 2003-05-15 | 2003-05-15 | 이동통신 시스템에서의 채널화코드 할당방법 |
PCT/KR2004/001096 WO2004102829A1 (en) | 2003-05-15 | 2004-05-12 | Method and apparatus for allocating channelization codes for wireless communications |
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JP2006526353A true JP2006526353A (ja) | 2006-11-16 |
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JP2006508522A Pending JP2006526353A (ja) | 2003-05-15 | 2004-05-12 | 無線通信のためのチャネル化コードの割り当て方法及び装置 |
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US (1) | US7372912B2 (ja) |
EP (1) | EP1623512A1 (ja) |
JP (1) | JP2006526353A (ja) |
WO (1) | WO2004102829A1 (ja) |
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US6662024B2 (en) * | 2001-05-16 | 2003-12-09 | Qualcomm Incorporated | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system |
GB0115937D0 (en) * | 2001-06-29 | 2001-08-22 | Koninkl Philips Electronics Nv | Radio communication system |
US6785250B2 (en) * | 2001-07-09 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for time-sharing channelization code in a CDMA communication system |
US6741587B2 (en) * | 2002-04-02 | 2004-05-25 | Nokia Corporation | Inter-frequency measurements with MIMO terminals |
-
2004
- 2004-05-12 JP JP2006508522A patent/JP2006526353A/ja active Pending
- 2004-05-12 WO PCT/KR2004/001096 patent/WO2004102829A1/en active Application Filing
- 2004-05-12 EP EP04732511A patent/EP1623512A1/en not_active Withdrawn
- 2004-05-14 US US10/845,530 patent/US7372912B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008539680A (ja) * | 2005-04-28 | 2008-11-13 | クゥアルコム・インコーポレイテッド | リソース再使用を考慮する伝送フォーマット選択 |
US7986680B2 (en) | 2005-04-28 | 2011-07-26 | Qualcomm Incorporated | Transmit format selection with consideration for resource reuse |
US8412257B2 (en) | 2005-04-28 | 2013-04-02 | Qualcomm Incorporated | Transmit format selection with consideration for resource reuse |
WO2010084821A1 (ja) * | 2009-01-26 | 2010-07-29 | シャープ株式会社 | 移動通信システム、基地局装置、移動局装置および移動通信方法 |
Also Published As
Publication number | Publication date |
---|---|
US7372912B2 (en) | 2008-05-13 |
EP1623512A1 (en) | 2006-02-08 |
WO2004102829A1 (en) | 2004-11-25 |
US20050002467A1 (en) | 2005-01-06 |
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