JP6731497B2 - チャネル状態情報報告方法、チャネル状態情報読み出し方法、及び関連装置 - Google Patents
チャネル状態情報報告方法、チャネル状態情報読み出し方法、及び関連装置 Download PDFInfo
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- 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
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- 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
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- H04B17/373—Predicting channel quality or other radio frequency [RF] parameters
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
- H04B7/0479—Special codebook structures directed to feedback optimisation for multi-dimensional arrays, e.g. horizontal or vertical pre-distortion matrix index [PMI]
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- H—ELECTRICITY
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- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
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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
- H04B7/0617—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 for beam forming
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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
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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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 signalling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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Description
(1)RS1−PMIのような1番目の第1PMI、RS2−PMIのような2番目の第1PMI、及びCQIx−AのようなCQI。ここでCQIx−Aは前述の4個のCQIのうちの1つである。
(2)RS1−PMIのような1番目の第1PMI、RS2−PMIのような2番目の第1PMI、及び4個のCQI:CQI1−A、CQI2−A、CQI3−A、及びCQI4−A。
第1チャネル状態情報は、ランク指示子、第1プリコーディング行列指示子、及び第2プリコーディング行列指示子のうちの少なくとも1つを含み、第2チャネル状態情報は、ランク指示子、参照信号リソースインデックス、チャネル品質指示子、第1プリコーディング行列指示子、及び第2プリコーディング行列指示子のうちの少なくとも1つを含む;又は、
第1チャネル状態情報は、ランク指示子、チャネル品質指示子、第1プリコーディング行列指示子、及び第2プリコーディング行列指示子のうちの少なくとも1つを含み、第2チャネル状態情報は、ランク指示子、参照信号リソースインデックス、チャネル品質指示子、第1プリコーディング行列指示子、及び第2プリコーディング行列指示子のうちの少なくとも1つを含む。
Claims (6)
- チャネル状態情報報告方法であって、
端末により、M個の第1参照信号リソースに基づきR個の第1プリコーディング行列指示子PMIを決定し、前記R個の第1PMIに基づき少なくとも1つのチャネル品質指示子CQIを決定するステップであって、M及びRは1以上の整数である、ステップと、
前記端末により、チャネル状態情報を報告するステップであって、前記チャネル状態情報は、前記R個の第1PMIと前記少なくとも1つのCQIを示す情報とを有し、前記R個の第1PMIは、直積、直和、及び補間のうちの少なくとも1つを含む動作基準に従いP個の第2PMIを決定するために基地局により使用され、前記第2PMIのプリコーディング行列の行の数は前記第1PMIのプリコーディング行列の行の数より大きく、P及びRは1以上の整数であり、RはPより小さい、ステップと、
を含み、
前記チャネル状態情報が前記R個の第1PMIと複数のCQIを示す情報とを含む場合、前記R個の第1PMIに基づきチャネル品質指示子CQIを決定する前記ステップは、
前記端末により、前記R個の第1PMI及び前記動作基準に基づき、前記P個の第2PMIを取得し、前記P個の第2PMIに基づき前記複数のCQIを決定し、前記複数のCQIのうちの基本CQIと各CQIの前記基本CQIに対する差分とを前記少なくとも1つのCQIと示す情報として決定するステップを含む、又は、
前記チャネル状態情報が前記R個の第1PMIと1個のCQIを示す情報とを含む場合、前記R個の第1PMIに基づきチャネル品質指示子CQIを決定する前記ステップは、
前記端末により、前記R個の第1PMI及び前記動作基準に基づき、1個の第2PMI及び1個のCQIを決定し、前記1個のCQIを前記少なくとも1つのCQIと示す情報として決定するステップを含む、
方法。 - 前記チャネル状態情報が前記R個の第1PMI及び前記CQIを含む場合、前記チャネル状態情報は、前記CQIに対応するCQIインデックス指示子を更に含む、請求項1に記載の方法。
- 前記動作基準は前記端末のために前記基地局により構成される、又は前記動作基準は前記基地局及び前記端末により予め定められる、請求項1又は2に記載の方法。
- 端末であって、
M個の第1参照信号リソースに基づきR個の第1プリコーディング行列指示子PMIを決定し、前記R個の第1PMIに基づき少なくとも1つのチャネル品質指示子CQIを決定するよう構成される決定モジュールであって、M及びRは1以上の整数である、決定モジュールと、
チャネル状態情報を報告するよう構成される報告モジュールであって、前記チャネル状態情報は、前記R個の第1PMIと前記少なくとも1つのCQIを示す情報とを含み、前記R個の第1PMIは、直積、直和、及び補間のうちの少なくとも1つを含む動作基準に従いP個の第2PMIを決定するために基地局により使用され、前記第2PMIのプリコーディング行列の行の数は前記第1PMIのプリコーディング行列の行の数より大きく、P及びRは1以上の整数であり、RはPより小さい、報告モジュールと、
を含み、
前記決定モジュールは、
前記チャネル状態情報が前記R個の第1PMIと複数のCQIを示す情報とを含む場合、前記R個の第1PMI及び前記動作基準に基づき、前記P個の第2PMIを取得し、前記P個の第2PMIに基づき前記複数のCQIを決定し、前記複数のCQIのうちの基本CQIと各CQIの前記基本CQIに対する差分とを前記少なくとも1つのCQIと示す情報として決定し、
前記チャネル状態情報が前記R個の第1PMIと1個のCQIを示す情報とを含む場合、前記R個の第1PMI及び前記動作基準に基づき、1個の第2PMI及び1個のCQIを決定し、前記1個のCQIを前記少なくとも1つのCQIと示す情報として決定する、
よう構成される、端末。 - 前記チャネル状態情報が前記R個の第1PMI及び前記CQIを含む場合、前記チャネル状態情報は、前記CQIに対応するCQIインデックス指示子を更に含む、請求項4に記載の端末。
- 前記動作基準は前記端末のために前記基地局により構成される、又は前記動作基準は前記基地局及び前記端末により予め定められる、請求項4又は5に記載の端末。
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| PCT/CN2016/082136 WO2017193404A1 (zh) | 2016-05-13 | 2016-05-13 | 信道状态信息的上报方法、读取方法及相关设备 |
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| US12015984B2 (en) * | 2019-02-14 | 2024-06-18 | Sony Group Corporation | Terminal device, system and methods |
| CN114287139B (zh) * | 2019-08-23 | 2025-03-11 | 株式会社Ntt都科摩 | 终端、无线通信方法、基站以及系统 |
| CN110662307B (zh) * | 2019-09-27 | 2025-05-09 | 中兴通讯股份有限公司 | 信息上报、接收方法、装置、终端、服务节点及存储介质 |
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| WO2023173245A1 (en) * | 2022-03-14 | 2023-09-21 | Zte Corporation | Channel state information reporting |
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| EP2912875A4 (en) * | 2012-10-23 | 2016-07-06 | Lg Electronics Inc | METHOD FOR RETRIEVING CHANNEL STATUS INFORMATION IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR |
| WO2014129858A1 (ko) * | 2013-02-24 | 2014-08-28 | 엘지전자 주식회사 | 무선 통신 시스템에서 3-차원 빔포밍을 위한 채널 상태 정보를 보고하는 방법 및 이를 위한 장치 |
| WO2015054879A1 (zh) * | 2013-10-18 | 2015-04-23 | 华为技术有限公司 | 信道状态信息的测量和反馈方法、终端及基站 |
| CN103746779B (zh) * | 2013-12-31 | 2017-06-16 | 上海华为技术有限公司 | 一种信道状态信息测量、参考信号的发送方法和装置 |
| US20150288499A1 (en) * | 2014-04-07 | 2015-10-08 | Samsung Electronics Co., Ltd. | Periodic and aperiodic channel state information reporting for advanced wireless communication systems |
| US9537552B2 (en) * | 2014-09-12 | 2017-01-03 | Samsung Electronics Co., Ltd. | Method and apparatus for channel state information based on antenna mapping and subsampling |
| CN105530036B (zh) * | 2014-09-28 | 2019-04-02 | 电信科学技术研究院 | 信道状态信息反馈方法、设备及系统 |
| CN105530037B (zh) * | 2014-10-24 | 2019-04-19 | 电信科学技术研究院 | 一种信道状态信息的反馈、获取方法及装置 |
| EP4161168A1 (en) * | 2015-03-27 | 2023-04-05 | Samsung Electronics Co., Ltd. | Resource allocation device and method in large-scale antenna system |
| CN106160821B (zh) * | 2015-03-31 | 2019-11-19 | 电信科学技术研究院 | 一种信道状态信息反馈、获取方法及装置 |
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2016
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- 2016-05-13 WO PCT/CN2016/082136 patent/WO2017193404A1/zh not_active Ceased
- 2016-05-13 BR BR112018073440A patent/BR112018073440A2/pt not_active Application Discontinuation
- 2016-05-13 KR KR1020187036109A patent/KR20190007475A/ko not_active Abandoned
- 2016-05-13 JP JP2018559960A patent/JP6731497B2/ja not_active Expired - Fee Related
- 2016-05-13 EP EP16901359.6A patent/EP3451565B1/en active Active
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| Publication number | Publication date |
|---|---|
| CN109155695A (zh) | 2019-01-04 |
| KR20190007475A (ko) | 2019-01-22 |
| WO2017193404A1 (zh) | 2017-11-16 |
| EP3451565B1 (en) | 2025-01-08 |
| BR112018073440A2 (pt) | 2019-03-26 |
| JP2019521570A (ja) | 2019-07-25 |
| EP3451565A4 (en) | 2019-07-31 |
| EP3451565A1 (en) | 2019-03-06 |
| US20190081683A1 (en) | 2019-03-14 |
| CN109155695B (zh) | 2021-01-29 |
| US10742294B2 (en) | 2020-08-11 |
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