CN106134124B - 用于信道状态反馈和传输点选择的csi-rs的联合传输 - Google Patents
用于信道状态反馈和传输点选择的csi-rs的联合传输 Download PDFInfo
- Publication number
- CN106134124B CN106134124B CN201580006461.2A CN201580006461A CN106134124B CN 106134124 B CN106134124 B CN 106134124B CN 201580006461 A CN201580006461 A CN 201580006461A CN 106134124 B CN106134124 B CN 106134124B
- Authority
- CN
- China
- Prior art keywords
- pmi
- csi
- feedback
- reporting
- port mapping
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
-
- 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]
-
- 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
- H04L5/0035—Resource allocation in a cooperative multipoint environment
-
- 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
-
- 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
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0478—Special codebook structures directed to feedback optimisation
-
- 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]
-
- 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
- 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 signalling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- 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
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461934696P | 2014-01-31 | 2014-01-31 | |
| US61/934,696 | 2014-01-31 | ||
| US14/606,757 US9872242B2 (en) | 2014-01-31 | 2015-01-27 | Joint transmission of CSI-RS for channel state feedback and transmission point selection |
| US14/606,757 | 2015-01-27 | ||
| PCT/US2015/013175 WO2015116619A1 (en) | 2014-01-31 | 2015-01-28 | Joint transmission of csi-rs for channel state feedback and transmission point selection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106134124A CN106134124A (zh) | 2016-11-16 |
| CN106134124B true CN106134124B (zh) | 2019-07-09 |
Family
ID=53755970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580006461.2A Active CN106134124B (zh) | 2014-01-31 | 2015-01-28 | 用于信道状态反馈和传输点选择的csi-rs的联合传输 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9872242B2 (enExample) |
| EP (1) | EP3100402B1 (enExample) |
| JP (1) | JP6359675B2 (enExample) |
| KR (1) | KR101845184B1 (enExample) |
| CN (1) | CN106134124B (enExample) |
| WO (1) | WO2015116619A1 (enExample) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014101659B4 (de) * | 2014-02-11 | 2018-10-04 | Intel IP Corporation | Kommunikationsendgerät und ein Verfahren zum Berichten einer Kanalqualität |
| US10097286B2 (en) * | 2014-02-19 | 2018-10-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Data transmission over a reduced number of physical antennas |
| US10476649B2 (en) * | 2015-01-07 | 2019-11-12 | Lg Electronics Inc. | Method for reporting channel quality information in TDD type wireless communication system, and device therefor |
| US9883490B1 (en) * | 2015-01-26 | 2018-01-30 | Newracom, Inc. | Implicit sounding for OFDMA operation |
| US10200102B2 (en) | 2015-11-13 | 2019-02-05 | Qualcomm Incorporated | Channel station information reporting and transmission mode for enhanced machine type communication |
| WO2017193331A1 (en) * | 2016-05-12 | 2017-11-16 | Qualcomm Incorporated | Hybrid class b fd-mimo |
| WO2018008036A1 (en) * | 2016-07-07 | 2018-01-11 | Bar-Ilan University | System and method for reduced overhead feedback scheme for interference mitigation in cellular networks |
| CN107690171B (zh) * | 2016-08-05 | 2019-09-17 | 电信科学技术研究院 | 一种选择驻留小区的方法及装置 |
| WO2018098802A1 (en) | 2016-12-02 | 2018-06-07 | Qualcomm Incorporated | Transmitting channel state information reference signals in new radio |
| CN106716856B (zh) * | 2016-12-15 | 2021-02-09 | 香港应用科技研究院有限公司 | 闭环大规模mimo系统架构 |
| WO2018141090A1 (en) * | 2017-02-04 | 2018-08-09 | Qualcomm Incorporated | Coupling aperiodic channel state information (csi) reference symbol (rs) (csi-rs) structure with feedback content and reporting timing |
| JP2018133700A (ja) * | 2017-02-15 | 2018-08-23 | 株式会社Nttドコモ | 無線基地局及び無線通信方法 |
| CN108738038B (zh) | 2017-04-18 | 2023-03-24 | 中兴通讯股份有限公司 | 消息处理方法及装置、第一无线接入网设备 |
| WO2018201447A1 (en) | 2017-05-05 | 2018-11-08 | Qualcomm Incorporated | Procedures for differential csi reporting |
| AU2018285662B2 (en) | 2017-06-16 | 2020-11-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel state information for reference signals in a wireless communication system |
| CN109391404B (zh) * | 2017-08-10 | 2021-02-09 | 电信科学技术研究院有限公司 | 一种csi的反馈及其控制方法、装置 |
| CN109392173B (zh) * | 2017-08-11 | 2022-05-17 | 维沃移动通信有限公司 | 一种系统信息的发送方法、获取方法及相关设备 |
| CN109245875B (zh) * | 2017-08-12 | 2019-09-13 | 华为技术有限公司 | 预编码矩阵子集限制的方法和传输装置 |
| CN111566960B (zh) * | 2017-11-17 | 2024-07-23 | 瑞典爱立信有限公司 | 无线电接入网络的确认信令 |
| JP2021516459A (ja) * | 2018-01-12 | 2021-07-01 | オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. | アップリンクデータ伝送方法及び関連装置 |
| US11082107B2 (en) * | 2018-03-09 | 2021-08-03 | Mediatek Inc. | Frequency-selective precoding for uplink transmissions in mobile communications |
| CN110324846B (zh) * | 2018-03-28 | 2021-09-03 | 维沃移动通信有限公司 | 一种上行传输取消指令的监听方法及终端 |
| US11121803B2 (en) * | 2018-05-11 | 2021-09-14 | Mediatek Inc. | NR CSI measurement and CSI reporting |
| US10680682B2 (en) * | 2018-05-11 | 2020-06-09 | Qualcomm Incorporated | Channel state information feedback for multi-transmission/reception point transmission in new radio |
| CN112236961B (zh) * | 2018-05-21 | 2023-12-01 | 上海诺基亚贝尔股份有限公司 | 信道状态信息反馈 |
| US20190386771A1 (en) * | 2018-06-13 | 2019-12-19 | Qualcomm Incorporated | Channel state information measurement and feedback for transmission mode switching |
| US11218206B2 (en) * | 2018-07-18 | 2022-01-04 | Qualcomm Incorporated | Channel state information (CSI) computation for effective isotropic radiated power (EIRP)-constrained transmissions |
| CN111741474B (zh) | 2019-03-25 | 2022-02-11 | 华为技术有限公司 | 一种信道状态信息的测量方法、装置及网络侧设备 |
| CN113853820B (zh) * | 2019-03-28 | 2025-08-26 | 株式会社Ntt都科摩 | 用户终端以及无线通信方法 |
| US11510082B2 (en) * | 2019-03-29 | 2022-11-22 | Qualcomm Incorporated | Beam indication reuse |
| US10804984B1 (en) * | 2019-06-05 | 2020-10-13 | Qualcomm Incorporated | Adaptive hybrid precoder selection in 2D antenna configuration |
| US11050465B2 (en) * | 2019-06-21 | 2021-06-29 | Qualcomm Incorporated | User equipment initiated channel state feedback codebook selection |
| WO2020252767A1 (en) * | 2019-06-21 | 2020-12-24 | Qualcomm Incorporated | Codebook subset restriction (cbsr) on per spatial domain amplitude |
| WO2021022556A1 (en) * | 2019-08-08 | 2021-02-11 | Nokia Shanghai Bell Co., Ltd. | Beam alignment |
| US11088745B2 (en) * | 2019-08-16 | 2021-08-10 | At&T Intellectual Property I, L.P. | Determining channel state information in 5G or other next generation wireless communication systems with multiple transmission points |
| WO2021068149A1 (en) | 2019-10-10 | 2021-04-15 | Qualcomm Incorporated | Port selection for channel state feedback with analog feedforward |
| CN115088312A (zh) * | 2019-12-12 | 2022-09-20 | 株式会社Ntt都科摩 | 终端以及无线通信方法 |
| US20230328569A1 (en) * | 2020-10-06 | 2023-10-12 | Qualcomm Incorporated | Techniques for joint channel state information reporting for multiple transmission and reception point communication schemes |
| CN116368739A (zh) * | 2020-10-15 | 2023-06-30 | 中兴通讯股份有限公司 | 无线通信系统的信道状态信息参考信号的配置 |
| WO2022205036A1 (en) * | 2021-03-31 | 2022-10-06 | Apple Inc. | Resource counting for reference signals |
| WO2022240328A1 (en) | 2021-12-23 | 2022-11-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Network node, user equipment and methods for csi-rs configuration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948088A (zh) * | 2010-06-21 | 2013-02-27 | 高通股份有限公司 | 维持宣告的发射天线的数量的能量节省模式 |
| WO2013038601A1 (en) * | 2011-09-13 | 2013-03-21 | Sharp Kabushiki Kaisha | Channel state information feedback method and user equipment |
| WO2013112829A1 (en) * | 2012-01-27 | 2013-08-01 | Nec Laboratories America, Inc. | Coordinated multiple point transmission and reception |
| WO2013139026A1 (en) * | 2012-03-22 | 2013-09-26 | Alcatel Lucent | Channel state information feedbacks for coordinated multipoint transmissions |
| CN103391128A (zh) * | 2012-05-07 | 2013-11-13 | 华为技术有限公司 | 一种虚拟天线映射方法及装置 |
Family Cites Families (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5368999B2 (ja) * | 2007-01-12 | 2013-12-18 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 無線通信システムにおける方法及び装置 |
| US8831116B2 (en) * | 2007-03-20 | 2014-09-09 | Motorola Mobility Llc | Method and apparatus for providing channel quality and precoding metric feedback in an orthogonal frequency division multiplexing communication system |
| US8406171B2 (en) * | 2008-08-01 | 2013-03-26 | Texas Instruments Incorporated | Network MIMO reporting, control signaling and transmission |
| US8767843B2 (en) * | 2008-11-10 | 2014-07-01 | Motorola Mobility Llc | Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access |
| CN102035579B (zh) * | 2009-09-28 | 2014-09-03 | 夏普株式会社 | 信息反馈方法和用户设备 |
| EP2498417B1 (en) * | 2009-11-05 | 2018-09-05 | LG Electronics Inc. | Method for transmitting channel quality information, medium and apparatus for the same |
| KR101754970B1 (ko) * | 2010-01-12 | 2017-07-06 | 삼성전자주식회사 | 무선 통신 시스템의 채널 상태 측정 기준신호 처리 장치 및 방법 |
| WO2011096646A2 (en) * | 2010-02-07 | 2011-08-11 | Lg Electronics Inc. | Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas |
| KR101615236B1 (ko) * | 2010-05-18 | 2016-05-13 | 엘지전자 주식회사 | 다중 셀 협력 통신을 위한 적응적 피드백 및 적응적 전송 모드 결정 방법 및 장치 |
| CN102082637B (zh) * | 2010-09-16 | 2015-03-25 | 电信科学技术研究院 | 一种码本子集约束的处理方法及设备 |
| ES2658265T3 (es) * | 2010-10-04 | 2018-03-09 | Samsung Electronics Co., Ltd. | Procedimiento y aparato de transmisión y recepción de mapa de bits de restricción de subconjunto de libro de códigos |
| WO2012057462A1 (en) | 2010-10-25 | 2012-05-03 | Lg Electronics Inc. | Method of reducing intercell interference in wireless communication system and apparatus thereof |
| US9673945B2 (en) | 2011-02-18 | 2017-06-06 | Qualcomm Incorporated | Implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources |
| US9559820B2 (en) * | 2011-02-18 | 2017-01-31 | Qualcomm Incorporated | Feedback reporting based on channel state information reference signal (CSI-RS) groups |
| US9635624B2 (en) * | 2011-02-22 | 2017-04-25 | Qualcomm Incorporated | Discovery reference signal design for coordinated multipoint operations in heterogeneous networks |
| US8599711B2 (en) | 2011-04-08 | 2013-12-03 | Nokia Siemens Networks Oy | Reference signal port discovery involving transmission points |
| US9735844B2 (en) * | 2011-05-09 | 2017-08-15 | Texas Instruments Incorporated | Channel feedback for coordinated multi-point transmissions |
| US8861430B2 (en) | 2011-08-11 | 2014-10-14 | Mediatek Inc. | Methods of point association for cooperative multiple point transmission |
| US9025574B2 (en) * | 2011-08-12 | 2015-05-05 | Blackberry Limited | Methods of channel state information feedback and transmission in coordinated multi-point wireless communications system |
| US20130083681A1 (en) * | 2011-09-30 | 2013-04-04 | Research In Motion Limited | Methods of Channel State Information Feedback and Transmission in Coordinated Multi-Point Wireless Communications System |
| JP5866448B2 (ja) * | 2011-08-12 | 2016-02-17 | インターデイジタル パテント ホールディングス インコーポレイテッド | ワイヤレスネットワークにおける干渉測定 |
| KR101573161B1 (ko) | 2011-09-23 | 2015-12-01 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널 정보 피드백 방법 및 장치 |
| US10250364B2 (en) * | 2011-12-09 | 2019-04-02 | Nokia Corporation | Channel measurements supporting coordinated multi-point operation |
| EP2795827B1 (en) * | 2011-12-20 | 2019-09-04 | Marvell World Trade Ltd. | Reference signal design for coordinated multipoint transmission |
| US8953478B2 (en) * | 2012-01-27 | 2015-02-10 | Intel Corporation | Evolved node B and method for coherent coordinated multipoint transmission with per CSI-RS feedback |
| EP2807880A4 (en) * | 2012-01-29 | 2015-09-16 | Nokia Solutions & Networks Oy | VIRTUAL ANTENNA PORTS OF SOFT DEFINITION OF CSI-RS RESOURCES |
| US9008585B2 (en) * | 2012-01-30 | 2015-04-14 | Futurewei Technologies, Inc. | System and method for wireless communications measurements and CSI feedback |
| WO2013172654A1 (ko) * | 2012-05-15 | 2013-11-21 | 엘지전자 주식회사 | 하향링크 데이터 수신 방법 및 사용자기기와 하향링크 데이터 전송 방법 및 기지국 |
| WO2013184613A2 (en) * | 2012-06-04 | 2013-12-12 | Interdigital Patent Holdings, Inc. | Communicating channel state information (csi) of multiple transmission points |
| US9438321B2 (en) * | 2012-07-12 | 2016-09-06 | Samsung Electronics Co., Ltd. | Methods and apparatus for codebook subset restriction for two-dimensional advanced antenna systems |
| US9094145B2 (en) * | 2012-07-25 | 2015-07-28 | Nec Laboratories America, Inc. | Coordinated multipoint transmission and reception (CoMP) |
| US9106386B2 (en) * | 2012-08-03 | 2015-08-11 | Intel Corporation | Reference signal configuration for coordinated multipoint |
| WO2014027947A2 (en) * | 2012-08-15 | 2014-02-20 | Telefonaktiebolaget L M Ericsson (Publ) | Precoding codebook bitmaps in telecommunications |
| WO2014087454A1 (en) * | 2012-12-05 | 2014-06-12 | Nec Corporation | Radio communication system and communication control method |
| US20140169409A1 (en) * | 2012-12-14 | 2014-06-19 | Futurewei Technologies, Inc. | Systems and Methods for Open-loop Spatial Multiplexing Schemes for Radio Access Virtualization |
| US9380466B2 (en) * | 2013-02-07 | 2016-06-28 | Commscope Technologies Llc | Radio access networks |
| GB2512634A (en) * | 2013-04-04 | 2014-10-08 | Nec Corp | Communication system |
-
2015
- 2015-01-27 US US14/606,757 patent/US9872242B2/en active Active
- 2015-01-28 KR KR1020167022568A patent/KR101845184B1/ko active Active
- 2015-01-28 JP JP2016549023A patent/JP6359675B2/ja active Active
- 2015-01-28 WO PCT/US2015/013175 patent/WO2015116619A1/en not_active Ceased
- 2015-01-28 CN CN201580006461.2A patent/CN106134124B/zh active Active
- 2015-01-28 EP EP15704643.4A patent/EP3100402B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948088A (zh) * | 2010-06-21 | 2013-02-27 | 高通股份有限公司 | 维持宣告的发射天线的数量的能量节省模式 |
| WO2013038601A1 (en) * | 2011-09-13 | 2013-03-21 | Sharp Kabushiki Kaisha | Channel state information feedback method and user equipment |
| WO2013112829A1 (en) * | 2012-01-27 | 2013-08-01 | Nec Laboratories America, Inc. | Coordinated multiple point transmission and reception |
| WO2013139026A1 (en) * | 2012-03-22 | 2013-09-26 | Alcatel Lucent | Channel state information feedbacks for coordinated multipoint transmissions |
| CN103391128A (zh) * | 2012-05-07 | 2013-11-13 | 华为技术有限公司 | 一种虚拟天线映射方法及装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3100402B1 (en) | 2023-07-05 |
| WO2015116619A1 (en) | 2015-08-06 |
| JP6359675B2 (ja) | 2018-07-18 |
| CN106134124A (zh) | 2016-11-16 |
| US9872242B2 (en) | 2018-01-16 |
| KR101845184B1 (ko) | 2018-05-18 |
| JP2017509230A (ja) | 2017-03-30 |
| EP3100402A1 (en) | 2016-12-07 |
| US20150223161A1 (en) | 2015-08-06 |
| BR112016017290A2 (pt) | 2017-08-08 |
| KR20160119112A (ko) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106134124B (zh) | 用于信道状态反馈和传输点选择的csi-rs的联合传输 | |
| US12088376B2 (en) | CSI report configuration for multi-TRP transmission | |
| US12273171B2 (en) | CSI report configuration with a codebook list | |
| US11871259B2 (en) | Sounding reference signal (SRS) guided downlink channel state information-reference signal (CSI-RS) scan | |
| CN109792620B (zh) | 针对新无线电技术多输入多输出通信的动态多波束传输 | |
| EP2946510B1 (en) | Interpolation-based channel state information (csi) enhancements in long-term evolution (lte) | |
| CN109565521B (zh) | 一种用于无线通信的方法及设备 | |
| US9019850B2 (en) | CSI reporting for multiple carriers with different system configurations | |
| CN112383334B (zh) | 用于针对fd-mimo的增强型csi反馈的方法和装置 | |
| US20210328742A1 (en) | Csi for non-coherent joint transmission | |
| US20170353222A1 (en) | Csi feedback overhead reduction for fd-mimo | |
| JP2013545405A (ja) | チャネル状態情報を決定して使用するための方法および装置 | |
| CN113169787B (zh) | 用于经压缩csi反馈的系数报告 | |
| CN114600527A (zh) | 经由通过频率域基预编码的探测参考信号的上行链路子带预编码 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |