WO2011137726A1 - 一种信道状态信息上报方法及其装置 - Google Patents
一种信道状态信息上报方法及其装置 Download PDFInfo
- Publication number
- WO2011137726A1 WO2011137726A1 PCT/CN2011/073401 CN2011073401W WO2011137726A1 WO 2011137726 A1 WO2011137726 A1 WO 2011137726A1 CN 2011073401 W CN2011073401 W CN 2011073401W WO 2011137726 A1 WO2011137726 A1 WO 2011137726A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pmi
- user terminal
- codebook
- cqi
- reporting
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
-
- 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
- H04B7/0636—Feedback format
- H04B7/0645—Variable feedback
- H04B7/065—Variable contents, e.g. long-term or short-short
-
- 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
-
- 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
- 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
-
- 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
-
- 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
Definitions
- the transmitter can obtain certain channel state information (CSI), it can optimize the modulation mode, coding rate and spatial distribution characteristics of the transmitted signal, so that the transmitted signal and the channel propagate. The characteristics are matched, so that the reliability of signal reception can be enhanced, and the effect on the complexity of the receiving algorithm can be reduced.
- the transmitter can perform scheduling decisions based on the CSI it obtains to improve system spectral efficiency and interference avoidance between cells.
- the eNB In LTE (Long-Term Evolution) Rd-8/9, the eNB (Evolved Base Station) can obtain the CSI of the downlink channel by using channel reciprocity or UE (User Equipment) feedback, where PDSCH (Physical Downlink Shared) The main transmission modes of Channel, physical downlink shared channel) use codebook-based implicit CSI feedback method.
- UE User Equipment
- PDSCH Physical Downlink Shared
- the codebook-based precoding scheme adopted in LTE Rd-8/9 mainly focuses on single-user application scenarios, while in Rel-10 (LTE-A, LTE-Advanced), the precoding and its feedback mechanism will be further Optimized to better support multi-user scenarios.
- the basic requirements of LTE-A for the feedback enhancement scheme are: to improve the CSI feedback accuracy as much as possible while maintaining low feedback overhead.
- a dual codebook based feedback scheme will be adopted in Rd-10. In this scheme, the channel information is divided into a relatively stable long-term/wideband CSI and a short-term/frequency-selective CSI with higher time/frequency selectivity.
- the UE may separately quantize the CSI by using two codebooks according to different feedback periods, and feed back the corresponding PMI.
- the PMI-1 which reflects long-term/wideband CSI, has a high spatial resolution, but can be fed back in a large cycle and in a large bandwidth.
- PMI-2 is used to reflect the fast-changing part of CSI and needs to be fed back in sub-bands with a low feedback period. Since the equivalent channel matrix formed by combining the channel with PMI-1 may have a lower dimension, in general, PMI-2 only needs to quantize the CSI of the lower dimension, so the number of bits of PMI-2 is small.
- the upper layer can configure the UE to use the PUCCH (Physical Downlink Control Channel) for periodic reporting and/or PUSCH (Physical Uplink Shared Channel). Channel) performs aperiodic reporting.
- PUCCH Physical Downlink Control Channel
- PUSCH Physical Uplink Shared Channel
- Channel Physical Uplink Shared Channel
- the PUCCH-based and PUSCH-based reporting modes in the existing specifications are given in Tables 1 and 2, respectively.
- the PUCCH report mode is a combination of PUCCH report types, and the corresponding relationship is shown in Table 3.
- Table 2 PUSCH-based reporting mode
- Table 3 Reporting types and their number of bits included in each PUCCH reporting mode
- the inventors found that the prior art has the following drawbacks: On the one hand, the existing feedback mechanism cannot achieve two-level feedback; on the other hand, in the existing feedback mechanism, the reporting content and reporting process of PUCCH and PUSCH should be completely independent, but in fact, the information provided by the two reporting methods may have certain Redundancy. If dual codebook feedback is supported in both PUCCH and PUSCH, it is inevitable to add a new reporting mode. In addition, if the two-level feedback needs to be independently supported in the PUCCH in the PUSCH report, it may cause an increase in the feedback overhead. Summary of the invention
- the embodiment of the present invention provides a channel state information reporting method and a device thereof, which are used to implement state information information reported by a PUCCH and a PUSCH based on a two-level codebook.
- the user terminal selects a codebook used by the precoding matrix indicator PMI from the two-level codebook, and selects a PMI from the codebook;
- the two-level codebook includes a codebook that reflects long-term/wideband information and reflects short-term/frequency a codebook of selective channel information;
- a PMI selection unit configured to select, from a two-level codebook, a codebook used for reporting a precoding matrix indicator PMI, and select a PMI from the codebook;
- the two-level codebook includes a codebook that reflects long-term/wideband information. a codebook reflecting short-term/frequency selective channel information;
- a CQI calculation unit configured to determine a parameter used when calculating a channel quality indicator CQI, and calculate a CQI according to the parameter; wherein, when reporting through the PUCCH, determining the calculated CQI
- the parameter includes the PMI reported by the user terminal through the PUSCH; the parameter used when calculating the CQI determined by the PUSCH is included in the PMI reported by the user terminal through the PUCCH;
- the reporting unit is configured to report the RI according to the specified reporting mode, the PMI selected by the PMI selecting unit, and the CQI calculated by the CQI calculating unit.
- FIG. 1 is a schematic flowchart of a channel state information reported by a PUCCH according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of channel state information reported by a PUSCH according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
- DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention provide a channel state information reporting scheme, which is applicable to a precoding process that uses a two-level codebook.
- the UE may report the RI, the long-term/wideband PMI, and the corresponding CQI information to the eNB through the PUCCH, and report the short-term/frequency selective PMI and the corresponding CQI information of the multiple sub-bands to the eNB in combination with the PUSCH.
- a codebook reflecting long-term/wideband information is recorded as CB1
- a codebook reflecting short-term/frequency-selective channel information is recorded as CB2. Since the feedback enhancement is mainly used in the MU-MIMO (Multiusers-Multiple Input Multiple Output) scenario (low rank), the two-level codebook structure can be expressed as:
- the dimension of PMI-1 is ⁇ ⁇
- the dimension of ⁇ -2 is ⁇ RI (where is the number of transmitting antennas of eNB, and R T is a set threshold, which can be based on MU-MIMO Rank number is determined);
- the reporting of the channel information is divided into two parts: the PUCCH reporting and the PUSCH reporting, and the two parts of the information have a certain dependency relationship, specifically:
- the UE may report the RI, the PMI PUCCH, and the corresponding channel quality indicator CQI PUCCH through the PUCCH reporting model-1, 2-1 according to the period and timing offset of the high layer configuration.
- the definition of PMI PUCCH and the calculation method of CQI PUCCH can be expressed as:
- the PMI PUCCH is the optimal precoding matrix.
- the best precoding matrix in this application refers to a precoding matrix capable of making the downlink transmission rate the highest.
- the UE side can calculate the transmission rate that can be obtained when each precoding matrix in the codebook is used, and then determine the optimal precoding matrix according to the rate that can be obtained.
- the UE may report the RI, the PMI PUSCH, and the corresponding channel quality indicator by using the PUSCH reporting mode 3-l, 1-2, 2-2 according to the period and timing offset of the high layer configuration.
- CQI PUSCH The definition of PMI PUSCH and the calculation method of CQI PUCCH can be expressed as:
- the UE selects a precoding matrix for each frequency domain reporting unit (according to the reporting mode, the reporting unit may be a broadband or a subband according to the reporting mode) according to the downlink channel condition detection algorithm and the PUSCH reporting mode configured by the upper layer.
- PMI PUSCH PMI-2e CB2
- the PMI PUSCH is the best precoding matrix.
- the following uses the PUCCH reporting mode 1-1 and the PUSCH reporting mode 1-2 as a high-level configuration in conjunction with FIG. 1 and FIG. 2 to respectively process the channel state information based on the PUCCH and the channel state information based on the PUSCH. The process is described.
- Step 401 The UE calculates an RI.
- the UE may measure the downlink channel based on the CRS, and calculate the number of data streams (RI) that the downlink of the UE can support according to its own receiving processing algorithm and using the measured downlink channel performance parameter.
- Step 402 The UE determines whether the calculated RI exceeds R T . If not, step 403 is performed; if yes, step 404 is performed.
- Step 405 The UE reports the channel state information by using the PUCCH and the reporting mode 1-1 configured for the PUCCH according to the period and the timing offset of the high-level configuration.
- the channel state information may include: the RI calculated by the UE, and the selected RI. PMI PUCCH , and the calculated CQI PUCCH .
- Step 501 The UE calculates an RI.
- the UE may measure the downlink channel based on the CRS, and calculate the number of data streams (RI) that the downlink of the UE can support according to its own receiving processing algorithm and using the measured downlink channel performance parameter.
- RI number of data streams
- Step 502 The UE determines whether the calculated RI exceeds R T . If not, step 503 is performed; if yes, step 504 is performed.
- CQIPUSCH CQI (RI, I NR , PMI-2), and then proceeds to step 505.
- Step 505 The UE reports the channel state information by using the PUSCH and the reporting mode 1-2 configured for the PUSCH according to the period and the timing offset of the high-level configuration.
- the channel state information may include: the RI calculated by the UE, and the selected RI. PMI PUSCH , and the calculated CQI PUSCH .
- R T may not be provided in advance (or by providing a sufficiently large R T, so that can always satisfy RI RI ⁇ R T), so that the user terminal will not need to be R T and RI
- the PMI is directly selected from the CB 1
- the PMI reported by the PUSCH is used as one of the parameters when calculating the CQI.
- PMI is selected directly from CB2
- PMI reported by PUCCH is used as one of the parameters when calculating CQI.
- the processing of the corresponding steps is similar to the corresponding steps of FIG. 1 and FIG. 2, and details are not described herein again.
- setting Rt to be adjustable can increase flexibility. In practice, if you want to compare the system design, you can remove this function.
- two-stage feedback is implemented using the existing feedback channels (PUCCH and PUSCH).
- the reported content of the PUCCH and the PUSCH complement each other, thereby reducing information redundancy.
- an additional report type and a reporting mode are not required, so that the existing channel state information reporting mechanism is less affected, and no additional signaling overhead is required.
- an embodiment of the present invention further provides a terminal device.
- the terminal device provided by the embodiment of the present invention is applicable to a process of reporting channel state information by using a PUCCH and a PUSCH, where the terminal device may include: a PMI selection unit 601, a CQI calculation unit 602, and a reporting unit 603, where :
- the PMI selecting unit 601 is configured to select, from the two-level codebook, a codebook used for reporting the precoding matrix indicator PMI, and select a PMI from the codebook;
- the two-level codebook includes a codebook that reflects long-term/broadband information. And a codebook reflecting short-term/frequency selective channel information;
- the CQI calculation unit 602 is configured to determine a parameter used when calculating a channel quality indicator CQI, and calculate a CQI according to the parameter, where the parameter used in calculating the CQI determined by the PUCCH, including the user terminal, passes the PUSCH. PMI reported; on the PUSCH The PMI used by the user terminal to report through the PUCCH is included in the parameter used in calculating the CQI;
- the reporting unit 603 is configured to report the CQI calculated by the PMI selected by the RI, the PMI selecting unit 601, and the CQI calculating unit 602 according to the specified reporting mode.
- the PMI selection unit 601 in the user equipment device selects a codebook that reflects long-term/wideband information, and selects a precoding matrix suitable for full bandwidth from the selected codebooks.
- PMI for the process of reporting channel state information through the PUCCH, the unit selects a codebook that reflects short-term/frequency-selective channel information, and from the codebook, reports the PMI corresponding to the precoding matrix selected by the unit in each frequency domain.
- the PMI selection unit 601 may determine whether the RI exceeds a set threshold R T ; if the RI does not exceed R T , select a codebook that reflects long-term/wideband information, and select from the codebook PMI corresponding to the full-bandwidth precoding matrix. The unit may also select a codebook that reflects short-term/frequency selective channel information when determining that the RI exceeds R T , and select a PMI corresponding to a pre-coding matrix suitable for full bandwidth from the codebook.
- the CQI calculation unit 602 in the user equipment may determine whether the RI exceeds a set threshold R T ; if the RI does not exceed R T , parameters used in calculating the CQI include: the RI The PMI selected by the user terminal and the PMI reported by the user terminal through the PUCCH.
- the parameters used by the unit to calculate the CQI include: the RI, the PMI selected by the user terminal, and a fixed parameter; the fixed parameter is ⁇ > ⁇ the number of transmit antennas, wherein, ⁇ ⁇ of the base station.
- the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, through hardware. But in many cases the former is a better implementation.
- the computer software product of the present invention is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute various embodiments of the present invention. Said method.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/704,229 US8705482B2 (en) | 2010-05-07 | 2011-04-27 | Method and device for reporting channel state information |
EP11777147.7A EP2568737B1 (en) | 2010-05-07 | 2011-04-27 | Method and device for reporting channel state information |
KR20127022657A KR101506673B1 (ko) | 2010-05-07 | 2011-04-27 | 채널상태 정보 보고방법 및 그의 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010101713686A CN102237955B (zh) | 2010-05-07 | 2010-05-07 | 一种信道状态信息上报方法及其装置 |
CN201010171368.6 | 2010-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011137726A1 true WO2011137726A1 (zh) | 2011-11-10 |
Family
ID=44888222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/073401 WO2011137726A1 (zh) | 2010-05-07 | 2011-04-27 | 一种信道状态信息上报方法及其装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8705482B2 (zh) |
EP (1) | EP2568737B1 (zh) |
KR (1) | KR101506673B1 (zh) |
CN (1) | CN102237955B (zh) |
WO (1) | WO2011137726A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111835481A (zh) * | 2019-08-02 | 2020-10-27 | 维沃移动通信有限公司 | 上行传输方法、终端和网络侧设备 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102244565B (zh) * | 2010-05-11 | 2014-02-12 | 电信科学技术研究院 | 一种信道信息反馈、预编码矩阵的生成方法及设备 |
WO2012028205A1 (en) * | 2010-09-03 | 2012-03-08 | Fujitsu Limited | Channel state feedback for multi-cell mimo |
US8681627B2 (en) * | 2010-12-07 | 2014-03-25 | Sharp Kabushiki Kaisha | Prioritizing multiple channel state information (CSI) reporting with carrier aggregation |
US9930677B2 (en) | 2010-12-07 | 2018-03-27 | Sharp Kabushiki Kaisha | Prioritizing multiple channel state information (CSI) reporting with carrier aggregation |
CN104335629B (zh) * | 2012-06-28 | 2018-10-09 | 华为技术有限公司 | 信道状态信息处理方法及终端 |
CN103828276A (zh) | 2012-06-28 | 2014-05-28 | 华为技术有限公司 | 信道状态信息处理方法及终端 |
US9698887B2 (en) * | 2013-03-08 | 2017-07-04 | Qualcomm Incorporated | Systems and methods for enhanced MIMO operation |
KR20150136474A (ko) * | 2013-03-11 | 2015-12-07 | 엘지전자 주식회사 | 무선 통신 시스템에서 채널 상태 정보 보고 방법 및 장치 |
CN105144607B (zh) * | 2013-04-29 | 2018-07-20 | Lg电子株式会社 | 用于在无线通信系统中发送信道状态信息的方法和设备 |
CN104811229B (zh) * | 2014-01-24 | 2020-09-08 | 中兴通讯股份有限公司 | 信道状态信息处理方法、装置、终端及基站 |
JP6466483B2 (ja) * | 2014-06-26 | 2019-02-06 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて高周波帯域通信のためのプリコーディング行列インデックス報告方法及びそのための装置 |
CN105871766B (zh) | 2015-01-23 | 2021-02-23 | 北京三星通信技术研究有限公司 | 干扰删除方法、干扰删除辅助方法、以及干扰删除装置 |
CN106911373A (zh) * | 2015-12-23 | 2017-06-30 | 中兴通讯股份有限公司 | 信道信息的发送、接收方法及装置、终端和基站 |
CN107196690B (zh) * | 2016-03-11 | 2019-05-21 | 电信科学技术研究院 | 一种反馈信息的传输方法和装置 |
CN107769826A (zh) | 2016-08-19 | 2018-03-06 | 索尼公司 | 无线通信系统中的电子设备和方法以及无线通信系统 |
US10110284B2 (en) | 2016-11-03 | 2018-10-23 | At&T Intellectual Property I, L.P. | Providing a format indicator comprising rank indication and channel state information spatial domain resolution type |
CN108631844B (zh) * | 2017-03-24 | 2021-05-18 | 电信科学技术研究院 | 一种获取信道状态信息的方法、终端和网络侧设备 |
CN108809578B (zh) * | 2017-05-05 | 2021-07-16 | 华为技术有限公司 | 传输数据的方法、终端设备和网络设备 |
CN109150411B (zh) * | 2017-06-16 | 2021-06-18 | 北京紫光展锐通信技术有限公司 | 信道状态信息上报方法、装置及用户设备 |
US11057092B2 (en) | 2018-08-10 | 2021-07-06 | At&T Intellectual Property I, L.P. | Facilitating fast channel state information computation for 5G wireless communication systems |
CN109660288B (zh) * | 2019-03-05 | 2022-01-25 | 武汉虹信科技发展有限责任公司 | 一种信息上报方法及装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090059844A1 (en) * | 2007-06-25 | 2009-03-05 | Lg Electronics Inc. | Method of transmitting data in multiple antenna system |
CN101426225A (zh) * | 2008-12-09 | 2009-05-06 | 中兴通讯股份有限公司 | 一种终端上报信道质量指示报告的方法 |
US20090168718A1 (en) * | 2008-01-02 | 2009-07-02 | Interdigital Patent Holdings, Inc. | Configuration for cqi reporting in lte |
CN101610523A (zh) * | 2008-06-20 | 2009-12-23 | 大唐移动通信设备有限公司 | 一种时分双工系统中上报信道信息的方法和系统 |
CN101615984A (zh) * | 2009-08-07 | 2009-12-30 | 中兴通讯股份有限公司 | 载波聚合下周期性cqi反馈的方法和装置 |
CN101677261A (zh) * | 2008-09-18 | 2010-03-24 | 华为技术有限公司 | 信道质量指示反馈的周期参数的管理方法和装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200908623A (en) * | 2007-06-08 | 2009-02-16 | Qualcomm Inc | Hierarchical modulation for communication channels in single-carrier frequency division multiple access |
US8412209B2 (en) * | 2007-06-18 | 2013-04-02 | Motorola Mobility Llc | Use of the physical uplink control channel in a 3rd generation partnership project communication system |
CN102938665B (zh) * | 2007-06-19 | 2015-09-30 | 株式会社Ntt都科摩 | 发送装置以及发送方法 |
KR101478362B1 (ko) * | 2007-08-10 | 2015-01-28 | 엘지전자 주식회사 | 다중안테나 시스템에서 귀환데이터 전송방법 |
KR101476202B1 (ko) * | 2008-01-08 | 2014-12-24 | 엘지전자 주식회사 | 주기적/비주기적 채널상태정보 송수신 방법 |
US8045508B2 (en) * | 2008-02-14 | 2011-10-25 | Lg Electronics Inc. | Rank feedback method for multiple-input multiple-output transmission |
KR101295384B1 (ko) * | 2008-02-14 | 2013-08-08 | 엘지전자 주식회사 | Mimo에서 랭크 피드백 방법 |
CN101978745B (zh) * | 2008-03-19 | 2014-09-24 | 爱立信电话股份有限公司 | 用于检测同步的丢失的方法和基站 |
KR100987458B1 (ko) * | 2008-06-24 | 2010-10-13 | 엘지전자 주식회사 | 상향링크 신호 전송 방법 |
US8335466B2 (en) * | 2008-12-19 | 2012-12-18 | Research In Motion Limited | System and method for resource allocation |
CN101998497B (zh) * | 2009-08-19 | 2013-03-27 | 中兴通讯股份有限公司 | 一种非周期上报信道状态信息的方法及装置 |
US8553627B2 (en) * | 2009-10-02 | 2013-10-08 | Sharp Laboratories Of America, Inc. | Transmission diversity scheme on physical uplink control channel (PUCCH) with ACK/NACK differentiation |
US8374136B2 (en) * | 2009-10-02 | 2013-02-12 | Sharp Laboratories Of America, Inc. | Transmission diversity scheme on physical uplink control channel (PUCCH) with ACK/NACK differentiation |
US8514796B2 (en) * | 2010-04-01 | 2013-08-20 | Sharp Laboratories Of America, Inc. | Transmitting control data and user data on a physical uplink channel |
US8526347B2 (en) * | 2010-06-10 | 2013-09-03 | Qualcomm Incorporated | Peer-to-peer communication with symmetric waveform for downlink and uplink |
-
2010
- 2010-05-07 CN CN2010101713686A patent/CN102237955B/zh active Active
-
2011
- 2011-04-27 KR KR20127022657A patent/KR101506673B1/ko active IP Right Grant
- 2011-04-27 EP EP11777147.7A patent/EP2568737B1/en active Active
- 2011-04-27 WO PCT/CN2011/073401 patent/WO2011137726A1/zh active Application Filing
- 2011-04-27 US US13/704,229 patent/US8705482B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090059844A1 (en) * | 2007-06-25 | 2009-03-05 | Lg Electronics Inc. | Method of transmitting data in multiple antenna system |
US20090168718A1 (en) * | 2008-01-02 | 2009-07-02 | Interdigital Patent Holdings, Inc. | Configuration for cqi reporting in lte |
CN101610523A (zh) * | 2008-06-20 | 2009-12-23 | 大唐移动通信设备有限公司 | 一种时分双工系统中上报信道信息的方法和系统 |
CN101677261A (zh) * | 2008-09-18 | 2010-03-24 | 华为技术有限公司 | 信道质量指示反馈的周期参数的管理方法和装置 |
CN101426225A (zh) * | 2008-12-09 | 2009-05-06 | 中兴通讯股份有限公司 | 一种终端上报信道质量指示报告的方法 |
CN101615984A (zh) * | 2009-08-07 | 2009-12-30 | 中兴通讯股份有限公司 | 载波聚合下周期性cqi反馈的方法和装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111835481A (zh) * | 2019-08-02 | 2020-10-27 | 维沃移动通信有限公司 | 上行传输方法、终端和网络侧设备 |
Also Published As
Publication number | Publication date |
---|---|
US20130215841A1 (en) | 2013-08-22 |
EP2568737A1 (en) | 2013-03-13 |
US8705482B2 (en) | 2014-04-22 |
CN102237955A (zh) | 2011-11-09 |
KR101506673B1 (ko) | 2015-04-07 |
EP2568737A4 (en) | 2014-10-22 |
KR20120123497A (ko) | 2012-11-08 |
CN102237955B (zh) | 2013-11-06 |
EP2568737B1 (en) | 2018-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2011137726A1 (zh) | 一种信道状态信息上报方法及其装置 | |
JP7469844B2 (ja) | 4TxMIMOのためのPUCCHでのCSIフィードバックのためのコードブックサブサンプリング | |
CN109644039B (zh) | 用于下行链路和上行链路信道状态信息获取的方法和设备 | |
JP6386146B2 (ja) | プリコーディング行列情報フィードバック方法、受信端、および送信端 | |
CN107636984B (zh) | 用于操作mimo测量参考信号和反馈的方法和装置 | |
CN107005293B (zh) | 用于部分预编码的信道状态信息参考信号和信道状态信息反馈的下行链路信令的方法和装置 | |
JP6732048B2 (ja) | マルチ解像度csiフィードバック | |
CN106165314B (zh) | 用于在无线通信系统中报告信道状态信息的方法和装置 | |
WO2011137752A1 (zh) | 一种基于pusch上报csi的方法及装置 | |
WO2012041107A1 (zh) | 信道状态信息反馈方法及终端 | |
KR20180017006A (ko) | 채널 상태 정보 보고를 위한 장치 및 방법 | |
WO2014032566A1 (zh) | 一种反馈和接收pmi的方法、系统及设备 | |
KR20170020287A (ko) | 채널 상태 정보 피드백 방법 및 장치 | |
WO2012068880A1 (zh) | 一种信道状态信息反馈方法及装置 | |
WO2011134322A1 (zh) | 信道状态信息的反馈方法及终端 | |
WO2011134245A1 (zh) | 一种信道信息的获取方法及装置 | |
WO2011085679A1 (zh) | 一种额外的预编码矩阵索引的指示方法和系统 | |
CN109075904A (zh) | 一种预编码矩阵指示的反馈方法及装置 | |
WO2016015225A1 (zh) | 一种信道状态信息的反馈和接收方法、设备 | |
KR20180129875A (ko) | 업링크 mimo를 가능하게 하기 위한 방법 및 장치 | |
CN115428354A (zh) | 使用角度和延迟互易性的增强型新无线电(nr)ii型信道状态信息(csi)反馈 | |
KR20180112796A (ko) | 채널 상태 정보(csi) 보고 방법 및 장치 | |
WO2018024157A1 (zh) | 信道状态信息的发送方法、接收方法、装置和系统 | |
WO2013004202A1 (zh) | 多天线传输方法、装置及系统 | |
WO2012028023A1 (zh) | 信道状态信息的反馈方法及终端 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11777147 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20127022657 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011777147 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13704229 Country of ref document: US |