JP2012151876A - 基地局および移動端末 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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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
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
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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
- H04L5/0037—Inter-user or inter-terminal allocation
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
- H04L5/1484—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise
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- H—ELECTRICITY
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/322—Power control of broadcast channels
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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
-
- 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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
【解決手段】セルラ無線ネットワークにおいて移動端末とデータを通信するためのMIMOシステムを提供する基地局であって、少なくとも第1のアンテナおよび第2のアンテナと、前記基地局から前記移動端末に送信されるトレーニングシーケンスの受信のために用いられる、前記移動端末に割り当てるための第1セットのタイムスロットを決定する手段と、前記第1セットのタイムスロットから前記第1のアンテナへの1または2以上のタイムスロットの割当て、および前記第1セットのタイムスロットから前記第2のアンテナへの他の1または2以上のタイムスロットの割当てを示すメッセージを生成する手段と、前記メッセージを前記移動端末に送信する手段と、を備える、基地局。
【選択図】図6
Description
・MIMOタイムスロット5では符号3−6がアンテナ1でアクティブであり、符号1−6がアンテナ2でアクティブである。
・MIMOタイムスロット6では符号3−6及び10、11がアンテナ1でアクティブであり、符号1−6がアンテナ2でアクティブである。
・MIMOタイムスロット7では符号10−11がアンテナ1でアクティブであり、符号1−2がアンテナ2でアクティブである。
・MIMOタイムスロット8では符号10−11がアンテナ1でアクティブであり、符号1−2がアンテナ2でアクティブである。
・タイムスロット5:0011110000000000:1111110000000000
・タイムスロット6:0011110000110000:1111110000000000
・タイムスロット7:0000000000110000:1100000000000000
・タイムスロット8:0000000000110000:1100000000000000
前記のメッセージでは、“1”は対応する符号が存在することを示し、“0”は基地局がその符号でペイロードデータを送信しないことを示す。コロンの前のビット列は、アンテナ1の符号割り当て情報を示し、コロンに続くビット列はアンテナ2での符号割り当てを示す。ブロードキャストされた符号割り当て情報を符号化する様々な方法が存在することがわかる。一般的に、直接のビットマップ以外の符号化が使用されてもよい。他の形式のシグナリングの例として、基地局はメッセージに圧縮を適用してもよい。代替として、基地局は、アンテナでのタイムスロットに割り当てられた最初の符号と最後の符号とを伝達してもよい。移動端末は、例えば更なる信号処理手段により、最初の符号と最後の符号との間で何の符号が送信されているか又は全ての符号をデフォルトで仮定してもよく、最初の符号と最後の符号との間で何の符号が送信されているかを決定してもよい。
Claims (14)
- セルラ無線ネットワークにおいて移動端末とデータを通信するためのMIMOシステムを提供する基地局であって、
少なくとも第1のアンテナおよび第2のアンテナと、
前記基地局から前記移動端末に送信されるトレーニングシーケンスの受信のために用いられる、前記移動端末に割り当てるための第1セットのタイムスロットを決定する手段と、
前記第1セットのタイムスロットから1または2以上のタイムスロットを前記第1のアンテナに割当て、前記第1セットのタイムスロットから他の1または2以上のタイムスロットを前記第2のアンテナに割り当てる手段と、
前記移動端末に割り当てられた1または2以上のタイムスロットのインジケーションを提供するメッセージを生成する手段であって、前記メッセージは、前記第1セットのタイムスロットから前記第1のアンテナへの前記1または2以上のタイムスロットの割当て、および前記第1セットのタイムスロットから前記第2のアンテナへの前記他の1または2以上のタイムスロットの割当てを示す、前記メッセージを生成する手段と、
前記メッセージを前記移動端末に送信する手段と、
を備える、基地局。 - 前記メッセージを送信する手段は、前記移動端末により観測される制御チャネル上で前記メッセージを送信する手段を含む、請求項1に記載の基地局。
- 前記メッセージを送信する手段は、前記移動端末により観測されるブロードキャストチャネル上で前記メッセージを送信する手段を含む、請求項1に記載の基地局。
- 前記メッセージを送信する手段は、
前記移動端末がメッセージを受信するような電力レベルを決定する手段と、
前記決定された電力レベルでブロードキャストチャネル上で前記メッセージを送信する手段と、
を含む、請求項1に記載の基地局。 - 前記メッセージは、近隣セルの割当てコードを示すインジケーションをさらに含む、請求項4に記載の基地局。
- 前記メッセージを送信する手段は、前記タイムスロットの前の期間中に前記メッセージを送信する手段を含む、請求項1に記載の基地局。
- 前記メッセージを送信する手段は、前記インジケーションに変更が生じた後に前記メッセージを送信する手段を含む、請求項1に記載の基地局。
- 前記メッセージを送信する手段は、前記メッセージを周期的に送信する手段を含む、請求項1に記載の基地局。
- セルラ移動無線ネットワークにおいて基地局を介してデータを受信するためのMIMOシステムを提供する移動端末であって、
前記基地局から送信された、前記移動端末に割り当てられた第1セットのタイムスロットのインジケーションを提供するメッセージを受信する手段と、
前記移動端末に割り当てられた前記第1セットのタイムスロットを前記メッセージから判定する手段と、
前記基地局から前記第1セットのタイムスロットのうちの1または2以上のタイムスロットを用いて前記移動端末に送信されるトレーニングシーケンスを受信する手段であって、前記基地局は少なくとも第1のアンテナおよび第2のアンテナを有し、前記メッセージは前記第1のアンテナに前記第1セットのタイムスロットから割り当てられた1または2以上のタイムスロット、および前記第2のアンテナに前記第1セットのタイムスロットから割り当てられた他のタイムスロットのインジケーションを提供する、前記トレーニングシーケンスを受信する手段と、
前記基地局の前記第1のアンテナおよび前記第2のアンテナから送信されたデータを前記メッセージおよび前記トレーニングシーケンスを用いて受信する手段と、
を備える、移動端末。 - 前記メッセージを受信する手段は、前記移動端末により観測される制御チャネルで前記メッセージを受信する手段を含む、請求項9に記載の移動端末。
- 前記メッセージを受信する手段は、前記移動端末により観測されるブロードキャストチャネル上で前記メッセージを受信する手段を含む、請求項9に記載の移動端末。
- 前記メッセージは、近隣セルの割当てコードを示すインジケーションをさらに含む、請求項9に記載の移動端末。
- 前記メッセージを受信する手段は、前記タイムスロットの前の期間中に前記メッセージを受信する手段を含む、請求項9に記載の移動端末。
- 前記メッセージを受信する手段は、前記メッセージを周期的に受信する手段を含む、請求項9に記載の移動端末。
Applications Claiming Priority (2)
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US10/838,983 | 2004-05-04 | ||
US10/838,983 US7684372B2 (en) | 2004-05-04 | 2004-05-04 | Signaling MIMO allocations |
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JP2007512151A Division JP5040648B2 (ja) | 2004-05-04 | 2005-04-21 | Mimo割り当てのシグナリング |
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JP2012151876A true JP2012151876A (ja) | 2012-08-09 |
JP5488631B2 JP5488631B2 (ja) | 2014-05-14 |
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JP2007512151A Expired - Fee Related JP5040648B2 (ja) | 2004-05-04 | 2005-04-21 | Mimo割り当てのシグナリング |
JP2012051430A Expired - Fee Related JP5488631B2 (ja) | 2004-05-04 | 2012-03-08 | 基地局および移動端末 |
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US (3) | US7684372B2 (ja) |
EP (5) | EP2242315B1 (ja) |
JP (2) | JP5040648B2 (ja) |
KR (3) | KR101258031B1 (ja) |
CN (1) | CN1951139B (ja) |
AT (4) | ATE554626T1 (ja) |
ES (5) | ES2377495T3 (ja) |
PL (4) | PL2242317T3 (ja) |
WO (1) | WO2005107304A1 (ja) |
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