JP6650405B2 - ユーザ装置 - Google Patents
ユーザ装置 Download PDFInfo
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- JP6650405B2 JP6650405B2 JP2016547729A JP2016547729A JP6650405B2 JP 6650405 B2 JP6650405 B2 JP 6650405B2 JP 2016547729 A JP2016547729 A JP 2016547729A JP 2016547729 A JP2016547729 A JP 2016547729A JP 6650405 B2 JP6650405 B2 JP 6650405B2
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
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- 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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- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/0026—Interference mitigation or co-ordination of multi-user interference
- H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
- H04J11/004—Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation
- H04J11/0043—Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation by grouping or ordering the users
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- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
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- H—ELECTRICITY
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- Mobile Radio Communication Systems (AREA)
Description
まず、従来のSISOやSIMOの場合の非直交マルチアクセス(NOMA)の概略を説明する。
図1に示すように、基地局10は複数のユーザ装置(user equipment、UE)100〜102と通信する。図1において符号10aは基地局10のセルエリアを示す。UE102は、セルエリア端すなわち最もセルエリア10aの境界に近い位置にあり、基地局10から最も遠く、パスロスが最も大きい(すなわち受信SINRが最も小さい)。UE100は、セルエリア10aの中央付近にあり、基地局10から最も近く、パスロスが最も小さい(すなわち受信SINRが最も大きい)。UE101は、UE102よりも基地局10に近く、UE100よりも基地局10から遠い。
は、2×1の行列であり、以下の式(1)で表される。
は、基地局10からUE1までの伝送路のチャネル行列であり、2×2MIMOでは2×2の行列である。
NOMA CQI1=β1CQI1 ...(5)
NOMA CQI2=β2CQI2/(β1CQI2+1) ...(6)
・Symbol-level Interference Canceller (SLIC)
これは、シンボルレベルで(すなわちRE(リソースエレメント)ごとに)干渉データ信号を扱い、干渉データ信号の復調結果を混合データ信号からキャンセルする。
・Codeword-level IC (CWIC)
これは、符号語レベルで干渉データ信号を復号し、復号結果をキャンセルする。
上記の実施の形態においては、UEで使用される干渉キャンセラとして、SLICとCWICが例示されるが、Maximum Likelihood (ML)を使用する干渉キャンセラを使用してもよい。この干渉キャンセラは、シンボルレベルで(すなわちREごとに)所望信号と干渉信号を結合推定する。
Claims (1)
- ユーザ装置であって、
当該ユーザ装置に対する第1の下り信号と、前記第1の下り信号への干渉となる、他のユーザ装置に対する第2の下り信号とが重畳されているか否かを示す情報、及び、前記第2の下り信号に関連付けられた復調用参照信号の送信アンテナポートを示す情報を受信する受信部と、
前記第2の下り信号に関連付けられた前記復調用参照信号の前記送信アンテナポートを示す前記情報に基づいて、前記第2の下り信号の受信処理を制御する制御部と、
を有し、
前記制御部は、前記第1の下り信号と前記第2の下り信号とが重畳されているか否かを示す前記情報に基づいて、前記第1の下り信号と前記第2の下り信号とが重畳されたデータ信号から前記第1の下り信号を復調する
ことを特徴とするユーザ装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014185118 | 2014-09-11 | ||
JP2014185118 | 2014-09-11 | ||
PCT/JP2015/066999 WO2016038960A1 (ja) | 2014-09-11 | 2015-06-12 | 基地局、ユーザ装置および無線通信システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2016038960A1 JPWO2016038960A1 (ja) | 2017-07-20 |
JP6650405B2 true JP6650405B2 (ja) | 2020-02-19 |
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Application Number | Title | Priority Date | Filing Date |
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JP2016547729A Active JP6650405B2 (ja) | 2014-09-11 | 2015-06-12 | ユーザ装置 |
Country Status (4)
Country | Link |
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US (1) | US10356727B2 (ja) |
EP (2) | EP3327983A1 (ja) |
JP (1) | JP6650405B2 (ja) |
WO (1) | WO2016038960A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US9882623B2 (en) | 2014-09-18 | 2018-01-30 | Qualcomm Incorporated | Dual thread feedback design for non-orthogonal channels |
US10117120B2 (en) | 2014-10-28 | 2018-10-30 | Qualcomm Incorporated | Channel feedback for non-orthogonal multiple access systems |
US10135477B2 (en) | 2015-01-28 | 2018-11-20 | Texas Instruments Incorporated | Signal cancellation of amplitude/angle modulation noise using feedforward and feedback topologies |
CN106161291B (zh) * | 2015-04-07 | 2019-09-17 | 电信科学技术研究院 | 一种数据的发送方法、接收方法及装置 |
US10097288B2 (en) * | 2015-08-10 | 2018-10-09 | ZTE Canada Inc. | Single-stream sliced maximum likelihood aided successive interference cancellation |
US10736081B2 (en) * | 2016-09-14 | 2020-08-04 | Huawei Technologies Co., Ltd. | Non-orthogonal multiple access transmission |
US10523482B2 (en) * | 2016-11-23 | 2019-12-31 | Wipro Limited | System and method for providing improved non-orthogonal multiple access in a wireless communication network |
KR20190084307A (ko) * | 2016-11-24 | 2019-07-16 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 정보 전송 방법, 기지국 및 단말 |
EP3337268B1 (en) * | 2016-12-19 | 2019-10-02 | Institut Mines Telecom / Telecom Bretagne | Method and apparatus for user distribution to sub bands in noma systems according to a weighted proportional fairness scheme |
US10425208B2 (en) * | 2017-09-08 | 2019-09-24 | At&T Intellectual Property I, L.P. | Unified indexing framework for reference signals |
CN108616997B (zh) * | 2018-08-03 | 2022-11-11 | 深圳市创仁水务科技有限公司 | Noma系统中的功率分配方法 |
WO2020069761A1 (en) * | 2018-10-05 | 2020-04-09 | Nokia Solutions And Networks Oy | Apparatus, method and computer program |
CN111314705B (zh) * | 2020-02-22 | 2023-04-11 | 太原科技大学 | 一种基于多描述编码的非正交多址图像传输系统及其应用 |
EP3886495A1 (en) * | 2020-03-27 | 2021-09-29 | Mitsubishi Electric R&D Centre Europe B.V. | Ng-ran based proactive performance calculations |
CN112367106B (zh) * | 2020-10-10 | 2022-03-01 | 西安电子科技大学 | 6g ris辅助的noma系统中物理层安全联合优化方法 |
GB202102913D0 (en) * | 2021-03-02 | 2021-04-14 | Ucl Business Ltd | Methods and apparatus for transmitting and receiving data |
US20240056159A1 (en) * | 2021-06-16 | 2024-02-15 | Intel Corporation | Optimizing spectral efficiency in a 5g massive mimo split architecture |
CN117792443A (zh) * | 2022-09-21 | 2024-03-29 | 华为技术有限公司 | 通信方法、装置和系统 |
CN117439673B (zh) * | 2023-12-21 | 2024-03-12 | 厦门大学 | 基于非正交多址的智能超表面辅助水声数据传输方法 |
Family Cites Families (11)
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CN101156335B (zh) * | 2005-04-11 | 2012-03-21 | 松下电器产业株式会社 | 无线基站装置 |
EP2293476A1 (en) | 2008-06-27 | 2011-03-09 | Kyocera Corporation | Radio communication device and radio communication method |
KR20100138260A (ko) * | 2009-06-24 | 2010-12-31 | 주식회사 팬택 | 무선통신 시스템에서 전력 할당방법 및 그 장치, 이를 적용한 송수신장치 신호전송 |
JP5864200B2 (ja) | 2011-05-20 | 2016-02-17 | 株式会社Nttドコモ | 受信装置、送信装置及び無線通信方法 |
JP5864199B2 (ja) | 2011-05-20 | 2016-02-17 | 株式会社Nttドコモ | 受信装置、送信装置及び無線通信方法 |
JP6050028B2 (ja) | 2012-05-25 | 2016-12-21 | シャープ株式会社 | 端末、基地局、通信方法及び集積回路 |
JP2014131202A (ja) * | 2012-12-28 | 2014-07-10 | Ntt Docomo Inc | 無線基地局、ユーザ端末、無線通信方法、及び無線通信システム |
JP5830478B2 (ja) * | 2013-02-06 | 2015-12-09 | 株式会社Nttドコモ | 無線基地局、ユーザ端末及び無線通信方法 |
US9906964B2 (en) * | 2013-10-09 | 2018-02-27 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Hierarchical transmission in wireless communications |
US9712272B2 (en) * | 2014-06-02 | 2017-07-18 | Intel IP Corporation | User equipment and method for dynamic non-orthogonal multiple access communication |
CA2973581C (en) * | 2016-07-14 | 2019-10-29 | Charles L. Hanley | Shelving systems |
-
2015
- 2015-06-12 EP EP18152543.7A patent/EP3327983A1/en not_active Withdrawn
- 2015-06-12 US US15/510,439 patent/US10356727B2/en active Active
- 2015-06-12 WO PCT/JP2015/066999 patent/WO2016038960A1/ja active Application Filing
- 2015-06-12 JP JP2016547729A patent/JP6650405B2/ja active Active
- 2015-06-12 EP EP15840122.4A patent/EP3193471A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
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JPWO2016038960A1 (ja) | 2017-07-20 |
WO2016038960A1 (ja) | 2016-03-17 |
EP3193471A1 (en) | 2017-07-19 |
EP3193471A4 (en) | 2017-08-02 |
US20170265145A1 (en) | 2017-09-14 |
EP3327983A1 (en) | 2018-05-30 |
US10356727B2 (en) | 2019-07-16 |
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