JPWO2016038960A1 - 基地局、ユーザ装置および無線通信システム - Google Patents
基地局、ユーザ装置および無線通信システム Download PDFInfo
- Publication number
- JPWO2016038960A1 JPWO2016038960A1 JP2016547729A JP2016547729A JPWO2016038960A1 JP WO2016038960 A1 JPWO2016038960 A1 JP WO2016038960A1 JP 2016547729 A JP2016547729 A JP 2016547729A JP 2016547729 A JP2016547729 A JP 2016547729A JP WO2016038960 A1 JPWO2016038960 A1 JP WO2016038960A1
- Authority
- JP
- Japan
- Prior art keywords
- data signal
- signal
- base station
- user
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 179
- 239000011159 matrix material Substances 0.000 claims description 99
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 13
- 238000004364 calculation method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000007476 Maximum Likelihood Methods 0.000 description 2
- 229920006934 PMI Polymers 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000008585 noma Diseases 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
-
- 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
- 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
-
- 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
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- 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
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
-
- 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
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- 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
- H04W52/26—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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
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 (10)
- 複数のユーザ装置の各々について、データ信号を送信するためのストリームの数を決定するストリーム数決定部と、
前記データ信号に、前記複数のユーザ装置によって異なるプリコーディングを行うプリコーダと、
少なくとも2つのユーザ装置に異なる送信電力を割り当てる送信電力決定部と、
前記少なくとも2つのユーザ装置を宛先とするストリームを、これらのストリームが互いに直交せずに混合された形式で、かつ前記少なくとも2つのユーザ装置により異なる送信電力で送信する無線送信部と、
前記少なくとも2つのユーザ装置を宛先とする各ストリームについて前記少なくとも2つのユーザ装置で決定されたチャネル状態情報から、前記少なくとも2つのユーザ装置についての予測指標を推定する予測指標推定部と
を備え、
前記予測指標推定部は、各ユーザ装置の複数のストリームの複数のチャネル状態情報から、そのユーザ装置についての単一の予測指標を推定し、
前記送信電力決定部は、前記少なくとも2つのユーザ装置についての前記予測指標に基づいて、予測指標が良いほど送信電力が低くなるように、前記少なくとも2つのユーザ装置に異なる送信電力を割り当てることを特徴とする
基地局。 - 各ストリームについての前記チャネル状態情報から、各ストリームについての暫定的な変調・符号化方式を決定する暫定的変調・符号化方式決定部を備え、
前記予測指標推定部は、前記少なくとも2つのユーザ装置を宛先とする各ストリームについての前記暫定的変調・符号化方式から、前記少なくとも2つのユーザ装置についての予測スループットを、前記予測指標として計算する予測スループット計算部を備え、
前記送信電力決定部は、前記少なくとも2つのユーザ装置についての前記予測スループットに基づいて、前記予測スループットが大きいほど送信電力が低くなるように、前記少なくとも2つのユーザ装置に異なる送信電力を割り当てる
ことを特徴とする請求項1に記載の基地局。 - 複数のユーザ装置から、異なる送信電力が割り当てられる前記少なくとも2つのユーザ装置の組の候補を複数決定する候補決定部と、
各候補を構成する前記少なくとも2つのユーザ装置に割り当てられた前記送信電力と、これらの少なくとも2つのユーザ装置の各ストリームについての前記チャネル状態情報に基づいて、これらの少なくとも2つのユーザ装置の各ストリームについての予測信号対雑音干渉比を推定する信号対雑音干渉比推定部と、
前記予測信号対雑音干渉比に基づいて、各ストリームについての予測変調・符号化方式を決定する予測変調・符号化方式決定部と、
前記予測変調・符号化方式に基づいて、各候補についてのスケジューリングメトリックを計算するスケジューリングメトリック計算部と、
前記複数の候補のうち、前記スケジューリングメトリックが最大になる候補を、異なる送信電力が割り当てられる前記少なくとも2つのユーザ装置として決定するユーザ装置決定部と
を備えることを特徴とする請求項2に記載の基地局。 - 前記ユーザ装置決定部で決定された候補に対応する各ストリームについての予測変調・符号化方式を、各ストリームに使用される変調・符号化方式として最終的に選択する正式変調・符号化方式決定部を備えることを特徴とする請求項3に記載の基地局。
- 前記少なくとも2つのユーザ装置に対して、前記無線送信部は、前記少なくとも2つのユーザ装置への復調用参照信号の送信に使用される前記基地局の送信アンテナポートを通知する
ことを特徴とする請求項1から請求項4のいずれか1項に記載の基地局。 - 前記複数のユーザ装置の各々が、そのユーザ装置に送信されるストリームの数が異なる複数の場合に対して決定した、複数のチャネル品質情報と複数のプリコーディング行列情報を基地局にフィードバックし、前記ストリーム数決定部は、フィードバックされた複数のチャネル品質情報と複数のプリコーディング行列情報に基づいて、ストリームの数を決定する
ことを特徴とする請求項1から請求項5のいずれか1項に記載の基地局。 - 基地局から複数のユーザ装置をそれぞれ宛先とする異なる電力を持つ互いに直交しない複数のデータ信号が含まれた混合データ信号を受信する無線受信部と、
前記混合データ信号のうち、他のユーザ装置を宛先とする干渉データ信号のレプリカ信号を生成するレプリカ信号生成部と、
前記レプリカ信号が正しいか否か判断する正否判断部と、
前記レプリカ信号が正しいと前記正否判断部が判断した場合に、前記干渉データ信号に相当するレプリカ信号を前記混合データ信号からキャンセルする干渉キャンセラと、
前記混合データ信号からユーザ装置自身を宛先とする所望データ信号を復号する所望データ信号復号部とを備え、
前記所望データ信号復号部は、前記レプリカ信号が正しいと前記正否判断部が判断した場合に、前記干渉キャンセラで前記レプリカ信号がキャンセルされた前記混合データ信号から前記所望データ信号を復号し、前記レプリカ信号が正しくないと前記正否判断部が判断した場合に、前記無線受信部で受信された前記混合データ信号から前記所望データ信号を復号する
ことを特徴とするユーザ装置。 - 前記基地局から通知されるユーザ装置自身のための復調用参照信号の送信アンテナポートから認識されるユーザ装置自身の復調用参照信号のチャネル推定を行うチャネル推定部を備え、
前記所望データ信号復号部は、ユーザ装置自身の復調用参照信号のチャネル推定結果を、前記所望データ信号の復号前の不要信号削減のための行列に用い、
前記所望データ信号復号部は、前記基地局から送信される前記所望データ信号のストリームの数に応じて、前記所望データ信号の復号前の不要信号削減のための行列を切り替え、 前記チャネル推定部は、前記基地局から通知される前記干渉データ信号の宛先である他のユーザ装置のための復調用参照信号の送信アンテナポートから認識される前記他のユーザ装置の復調用参照信号のチャネル推定を行い、
前記レプリカ信号生成部は、前記他のユーザ装置の復調用参照信号のチャネル推定結果を、前記干渉データ信号の復調前の不要信号削減のための行列に用い、
前記レプリカ信号生成部は、前記基地局から送信される前記干渉データ信号のストリームの数に応じて、前記干渉データ信号の復調前の不要信号削減のための行列を切り替える
ことを特徴とする請求項7に記載のユーザ装置。 - 前記基地局からユーザ装置に送信されるストリームの数が異なる複数の場合に対して、複数のチャネル品質情報と複数のプリコーディング行列情報を決定し、基地局にフィードバックする
ことを特徴とする請求項7または請求項8に記載のユーザ装置。 - 請求項1から請求項6のいずれか1項に記載の基地局と、請求項7から請求項9のいずれか1項に記載のユーザ装置とを
備える無線通信システム。
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 true JPWO2016038960A1 (ja) | 2017-07-20 |
JP6650405B2 JP6650405B2 (ja) | 2020-02-19 |
Family
ID=55458723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016547729A Active JP6650405B2 (ja) | 2014-09-11 | 2015-06-12 | ユーザ装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10356727B2 (ja) |
EP (2) | EP3327983A1 (ja) |
JP (1) | JP6650405B2 (ja) |
WO (1) | WO2016038960A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO2018094672A1 (zh) * | 2016-11-24 | 2018-05-31 | 华为技术有限公司 | 一种信息传输的方法、基站及终端 |
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 |
US11476900B2 (en) * | 2018-10-05 | 2022-10-18 | 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 |
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 |
WO2022265713A1 (en) * | 2021-06-16 | 2022-12-22 | 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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013009290A (ja) * | 2011-05-20 | 2013-01-10 | Ntt Docomo Inc | 受信装置、送信装置及び無線通信方法 |
WO2014122994A1 (ja) * | 2013-02-06 | 2014-08-14 | 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 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101156335B (zh) * | 2005-04-11 | 2012-03-21 | 松下电器产业株式会社 | 无线基站装置 |
KR101169881B1 (ko) | 2008-06-27 | 2012-07-31 | 쿄세라 코포레이션 | 무선 통신 장치 및 무선 통신 방법 |
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 |
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 |
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 |
US10172452B2 (en) * | 2016-07-14 | 2019-01-08 | Dejana Truck & Utility Equipment | Shelving systems |
-
2015
- 2015-06-12 US US15/510,439 patent/US10356727B2/en active Active
- 2015-06-12 EP EP18152543.7A patent/EP3327983A1/en not_active Withdrawn
- 2015-06-12 WO PCT/JP2015/066999 patent/WO2016038960A1/ja active Application Filing
- 2015-06-12 EP EP15840122.4A patent/EP3193471A4/en not_active Withdrawn
- 2015-06-12 JP JP2016547729A patent/JP6650405B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013009290A (ja) * | 2011-05-20 | 2013-01-10 | Ntt Docomo Inc | 受信装置、送信装置及び無線通信方法 |
WO2014122994A1 (ja) * | 2013-02-06 | 2014-08-14 | 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 |
Non-Patent Citations (9)
Title |
---|
3GPP TR 36.866 V12.0.1 (2014-03), JPN6018051002, 28 March 2014 (2014-03-28), ISSN: 0004061524 * |
ERICSSON: "On network assisted signaling and coordination for NAICS", 3GPP TSG-RAN WG1#76 R1-140804, JPN6018051007, February 2014 (2014-02-01), ISSN: 0003946918 * |
ETRI: "On DMRS based interference cancellation receiver and its signalling", 3GPP TSG RAN WG1 MEETING #76 R1-140220, JPN6018051008, February 2014 (2014-02-01), ISSN: 0003946919 * |
HUAWEI, HISILICON: "Discussion on network coordination for advanced receivers", 3GPP TSG RAN WG1 MEETING #76 R1-140061, JPN6018051005, February 2014 (2014-02-01), ISSN: 0004061527 * |
INTEL CORPORATION: "Discussion on the dynamic interference parameters detection for DMRS-based transmission modes", 3GPP TSG-RAN WG4 MEETING #70BIS R4-141526, JPN6018051006, April 2014 (2014-04-01), ISSN: 0003946917 * |
MEDIATEK INC.: "Discussion on the feasibility of network assistance", 3GPP TSG-RAN WG1 #76 R1-140248, JPN6018051004, February 2014 (2014-02-01), ISSN: 0004061526 * |
MEDIATEK INC.: "General requirements and considerations for blind detection in typical operations and simulation con", 3GPP TSG-RAN WG4 #76BIS R4-141733, JPN6018051003, April 2014 (2014-04-01), ISSN: 0004061525 * |
NTT DOCOMO, INC.: "Justification for NOMA in New Study on Enhanced MU-MIMO and Network Assisted Interference Cancellati", 3GPP TSG RAN MEETING #65 RP-141165, JPN6019050280, 2 September 2014 (2014-09-02), ISSN: 0004180818 * |
NTT DOCOMO: "Further Views on CSI Enhancements for NAICS", 3GPP TSG RAN WG1 MEETING #78 R1-143230, JPN6018051001, August 2014 (2014-08-01), ISSN: 0004061523 * |
Also Published As
Publication number | Publication date |
---|---|
JP6650405B2 (ja) | 2020-02-19 |
EP3193471A1 (en) | 2017-07-19 |
EP3193471A4 (en) | 2017-08-02 |
EP3327983A1 (en) | 2018-05-30 |
WO2016038960A1 (ja) | 2016-03-17 |
US10356727B2 (en) | 2019-07-16 |
US20170265145A1 (en) | 2017-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6650405B2 (ja) | ユーザ装置 | |
CN106464322B (zh) | 小区内干扰消除以及抑制的信令的方法以及用户设备 | |
Caire et al. | Multiuser MIMO achievable rates with downlink training and channel state feedback | |
US9385852B2 (en) | Methods and arrangements for CSI reporting | |
US9591655B2 (en) | Method and arrangement in a wireless communication system | |
CA2873377C (en) | Method and arrangement in a wireless communication system | |
US9883464B2 (en) | Radio communication system and user device | |
KR102175545B1 (ko) | 무선 통신 시스템에서 수신 신호 복호 방법 및 장치 | |
US10911172B2 (en) | User apparatus, base station, interference reducing method and interference reducing control information notification method | |
KR20100046338A (ko) | 이동통신 시스템의 공조 빔 형성 장치 및 방법 | |
WO2015019743A1 (ja) | ユーザ装置、基地局、逐次干渉キャンセル処理方法、及び逐次干渉キャンセル制御方法 | |
JPWO2016027556A1 (ja) | 基地局、ユーザ装置および無線通信システム | |
DK2850752T3 (en) | Method and device in a wireless communication system | |
WO2018119714A1 (zh) | 信号发送方法、信号接收方法、基站及用户设备 | |
EP3051726B1 (en) | User device and interference reduction processing method | |
Farhadi et al. | Pilot-assisted opportunistic user scheduling for wireless multi-cell networks | |
KR20090047051A (ko) | 더티 페이퍼 코딩을 이용한 데이터 전송 방법 및 송신기 | |
US20160197694A1 (en) | Method of signalling intended to be implemented by a cellular telecommunication network, base station and terminal corresponding thereto |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AA64 | Notification of invalidation of claim of internal priority (with term) |
Free format text: JAPANESE INTERMEDIATE CODE: A241764 Effective date: 20170516 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170517 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170518 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20180420 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20180510 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190108 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190307 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20190402 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190531 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20190625 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20190925 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20191004 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20191224 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200120 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6650405 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |