JP6054972B2 - 通信システムにおけるフィードバック生成方法及び装置 - Google Patents
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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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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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
- H04B7/0417—Feedback systems
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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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
-
- 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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Description
920 制御部
930 チャネル推定部
1000 中央制御装置
1010 制御部
1020 通信部
1030 セルリソース割り当て部
Claims (16)
- 通信システムにおけるユーザ装置(UE:User equipment)によってチャネル状態を報告する方法であって、
少なくとも一つのチャネル状態基準信号に対する情報を受信するステップと、
前記少なくとも一つのチャネル状態情報基準信号の第1のセット及び第1の周期に基づいて第1のチャネル状態を基地局(eNB:evolved node B)に報告するステップと、
前記少なくとも一つのチャネル状態情報基準信号の第2のセット及び第2の周期に基づいて第2のチャネル状態を前記eNBに報告するステップと、
前記第1のチャネル状態は、プリコーディングマトリックス指示子(PMI)、チャネル品質指示子(CQI)及びランキング指示子(RI)のうちの少なくとも一つを含み、
前記第2のチャネル状態は、CQI、PMI及びRIのうちの少なくとも一つを含み、
前記第2のチャネル状態のRIは、前記第1のチャネル状態のRIと同一であることを特徴とする方法。 - 前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、前記少なくとも一つのチャネル状態情報基準信号の第2のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項1に記載の方法。
- 前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、前記少なくとも一つのチャネル状態情報基準信号の第1のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項1に記載の方法。
- 前記少なくとも一つのチャネル状態情報基準信号の部分は、ゼロパワーチャネル状態情報基準信号に対するものであることを特徴とする請求項1に記載の方法。
- 通信システムにおける基地局(eNB:evolved node B)によってチャネル状態を受信する方法であって、
ユーザ装置(UE:User equipment)に少なくとも一つのチャネル状態基準信号に対する情報を送信するステップと、
前記UEから前記少なくとも一つのチャネル状態情報基準信号の第1のセット及び第1の周期に基づいて報告された第1のチャネル状態を受信するステップと、
前記UEから前記少なくとも一つのチャネル状態情報基準信号の第2のセット及び第2の周期に基づいて報告された第2のチャネル状態を受信するステップと、
前記第1のチャネル状態は、プリコーディングマトリックス指示子(PMI)、チャネル品質指示子(CQI)及びランキング指示子(RI)のうちの少なくとも一つを含み、
前記第2のチャネル状態は、CQI、PMI及びRIのうちの少なくとも一つを含み、
前記第2のチャネル状態のRIは、前記第1のチャネル状態のRIと同一であることを特徴とする方法。 - 前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、前記少なくとも一つのチャネル状態情報基準信号の第2のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項5に記載の方法。
- 前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、前記少なくとも一つのチャネル状態情報基準信号の第1のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項5に記載の方法。
- 前記少なくとも一つのチャネル状態情報基準信号の部分は、ゼロパワーチャネル状態情報基準信号に対するものであることを特徴とする請求項5に記載の方法。
- 通信システムにおけるチャネル状態を報告するユーザ装置(UE:User equipment)であって、
送受信部の動作を制御する制御部と、
少なくとも一つのチャネル状態基準信号に対する情報を受信し、前記少なくとも一つのチャネル状態情報基準信号の第1のセット及び第1の周期に基づいて第1のチャネル状態をeNB(evolved node B)に報告し、前記少なくとも一つのチャネル状態情報基準信号の第2のセット及び第2の周期に基づいて第2のチャネル状態を前記eNBに報告する前記送受信部と、を含み、
前記第1のチャネル状態は、プリコーディングマトリックス指示子(PMI)、チャネル品質指示子(CQI)及びランキング指示子(RI)のうちの少なくとも一つを含み、
前記第2のチャネル状態は、CQI、PMI及びRIのうちの少なくとも一つを含み、
前記第2のチャネル状態のRIは、前記第1のチャネル状態のRIと同一であることを特徴とするユーザ装置。 - 前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、前記少なくとも一つのチャネル状態情報基準信号の第2のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項9に記載のユーザ装置。
- 前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、前記少なくとも一つのチャネル状態情報基準信号の第1のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項9に記載のユーザ装置。
- 前記少なくとも一つのチャネル状態情報基準信号の部分は、ゼロパワーチャネル状態情報基準信号に対するものであることを特徴とする請求項9に記載のユーザ装置。
- 通信システムにおけるチャネル状態を受信する基地局(eNB:evolved node B)であって、
送受信部の動作を制御する制御部と、
ユーザ装置(UE:User equipment)に少なくとも一つのチャネル状態基準信号に対する情報を送信し、前記UEから前記少なくとも一つのチャネル状態情報基準信号の第1のセット及び第1の周期に基づいて報告された第1のチャネル状態を受信し、前記UEから前記少なくとも一つのチャネル状態情報基準信号の第2のセット及び第2の周期に基づいて報告された第2のチャネル状態を受信する前記送受信部と、を含み、
前記第1のチャネル状態は、プリコーディングマトリックス指示子(PMI)、チャネル品質指示子(CQI)及びランキング指示子(RI)のうちの少なくとも一つを含み、
前記第2のチャネル状態は、CQI、PMI及びRIのうちの少なくとも一つを含み、
前記第2のチャネル状態のRIは、前記第1のチャネル状態のRIと同一であることを特徴とする基地局。 - 前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第1のセットは、前記少なくとも一つのチャネル状態情報基準信号の第2のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項13に記載の基地局。
- 前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、一つまたはそれ以上のチャネル状態情報基準信号を含み、前記少なくとも一つのチャネル状態情報基準信号の前記第2のセットは、前記少なくとも一つのチャネル状態情報基準信号の第1のセットと全体的に分割されるかまたは部分的に重なることを特徴とする請求項13に記載の基地局。
- 前記少なくとも一つのチャネル状態情報基準信号の部分は、ゼロパワーチャネル状態情報基準信号に対するものであることを特徴とする請求項13に記載の基地局。
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KR10-2011-0102118 | 2011-10-06 | ||
KR1020110102118A KR101855523B1 (ko) | 2011-10-06 | 2011-10-06 | 통신 시스템에서 피드백 생성 방법 및 장치 |
PCT/KR2012/008078 WO2013051884A1 (en) | 2011-10-06 | 2012-10-05 | Method and apparatus for generating feedback in a communication system |
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EP (2) | EP2579495B1 (ja) |
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KR (1) | KR101855523B1 (ja) |
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