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    • 1. 发明授权
    • Method and device for reporting channel state
    • 报告通道状态的方法和设备
    • US09363700B2
    • 2016-06-07
    • US13991152
    • 2011-11-30
    • Xin SuQiubin GaoRakesh TamrakarZukang Shen
    • Xin SuQiubin GaoRakesh TamrakarZukang Shen
    • H04L1/00H04L12/26H04L12/28H04W24/10H04B7/04H04B7/06
    • H04W24/10H04B7/0417H04B7/063H04B7/0632H04B7/0639H04L1/0026
    • There is disclosed method for reporting channel state so as to report channel state based upon CSI-RS. The method includes: a UE detecting configuration information of Channel State Information-Reference Signal (CSI-RS), determining according to detection result the number of ports required to report channel state based upon CSI-RS, the UE determining CSI-RS based PMI feedback scheme to be adopted in preset corresponding relationship between the number of ports and feedback scheme upon determining that the eNB is to map data of Physical Downlink Shared Channel (PDSCH) onto P (number) CSI-RS ports for transmission in a codebook-based precoding scheme, wherein the codebook-based precoding scheme is a scheme as represented in the formula of [ y ( 0 ) ⋮ y ( P - 1 ) ] = W · s , wherein W represents a codebook consisted of a precoding matrix, S is PDSCH data consisted of data layers whose quantity is equal to value of Rank Indication (RI) and   [ y ( 0 ) ⋮ y ( P - 1 ) ] represents a vector consisted of data on P (number) CSI-RS ports; and the UE calculating and reporting channel state information according to the determination result. The invention further discloses apparatus for performing the method.
    • 公开了用于报告信道状态以便基于CSI-RS报告信道状态的方法。 该方法包括:UE检测信道状态信息参考信号(CSI-RS)的配置信息,根据检测结果确定基于CSI-RS报告信道状态所需的端口数,UE确定基于CSI-RS的PMI 在确定eNB将物理下行链路共享信道(PDSCH)的数据映射到基于码本的P(号码)CSI-RS端口上的数据之后,在端口数和反馈方案之间预设的对应关系中采用的反馈方案 预编码方案,其中基于码本的预编码方案是如[y(0)⋮y(P-1)] = W·s的公式所示的方案,其中W表示由预编码矩阵组成的码本,S是 PDSCH数据由数量等于等级指示值(RI)和[y(0)⋮y(P-1)]的数据层组成,表示由P(个数)CSI-RS端口上的数据组成的向量; 并且UE根据确定结果来计算和报告信道状态信息。 本发明还公开了用于执行该方法的装置。
    • 4. 发明申请
    • METHOD AND DEVICE FOR REPORTING CHANNEL STATE
    • 用于报告通道状态的方法和设备
    • US20130343216A1
    • 2013-12-26
    • US13991152
    • 2011-11-30
    • Xin SuQiubin GaoRakesh TamrakarZukang Shen
    • Xin SuQiubin GaoRakesh TamrakarZukang Shen
    • H04W24/10
    • H04W24/10H04B7/0417H04B7/063H04B7/0632H04B7/0639H04L1/0026
    • There is disclosed method for reporting channel state so as to report channel state based upon CSI-RS. The method includes: a UE detecting configuration information of Channel State Information-Reference Signal (CSI-RS), determining according to detection result the number of ports required to report channel state based upon CSI-RS, the UE determining CSI-RS based PMI feedback scheme to be adopted in preset corresponding relationship between the number of ports and feedback scheme upon determining that the eNB is to map data of Physical Downlink Shared Channel (PDSCH) onto P (number) CSI-RS ports for transmission in a codebook-based precoding scheme, wherein the codebook-based precoding scheme is a scheme as represented in the formula of [ y ( 0 ) ⋮ y ( P - 1 ) ] = W · s , wherein W represents a codebook consisted of a precoding matrix, S is PDSCH data consisted of data layers whose quantity is equal to value of Rank Indication (RI) and   [ y ( 0 ) ⋮ y ( P - 1 ) ] represents a vector consisted of data on P (number) CSI-RS ports; and the UE calculating and reporting channel state information according to the determination result. The invention further discloses apparatus for performing the method.
    • 公开了用于报告信道状态以便基于CSI-RS报告信道状态的方法。 该方法包括:UE检测信道状态信息参考信号(CSI-RS)的配置信息,根据检测结果确定基于CSI-RS报告信道状态所需的端口数,UE确定基于CSI-RS的PMI 在确定eNB将物理下行链路共享信道(PDSCH)的数据映射到基于码本的P(号码)CSI-RS端口上的数据之后,在端口数和反馈方案之间预设的对应关系中采用的反馈方案 预编码方案,其中基于码本的预编码方案是在[y(0)⋮y(P-1)] = W·s的公式中表示的方案,其中W表示由预编码矩阵组成的码本,S是 PDSCH数据由数量等于等级指示值(RI)和[y(0)⋮y(P-1)]的数据层组成,表示由P(个数)CSI-RS端口上的数据组成的向量; 并且UE根据确定结果来计算和报告信道状态信息。 本发明还公开了用于执行该方法的装置。
    • 6. 发明申请
    • METHOD AND DEVICE FOR REPORTING CHANNEL QUALITY INFORMATION
    • 报告渠道质量信息的方法和设备
    • US20140016496A1
    • 2014-01-16
    • US14002106
    • 2011-10-13
    • Xin SuQiubin GaoRakesh TamrakarZukang ShenShaohui Sun
    • Xin SuQiubin GaoRakesh TamrakarZukang ShenShaohui Sun
    • H04W24/10
    • H04W24/10H04B7/0626H04B7/0632H04L1/0026H04L1/20
    • A method and a device for reporting channel quality information are provided by the present invention, the method comprising that: measuring, by a user equipment (UE), Channel State Information-Reference Signal (CSI-RS) according to the configuration information of the CSI-RS, to acquire a downlink channel transport matrix (101); determining, by the UE, Channel Quality Indicator (CQI) of a frequency domain reporting unit according to the number of CSI-RS ports and the corresponding transmission scheme of the Physical Downlink Shared Channel (PDSCH) used when determining the CQI, and the downlink channel transport matrix acquired by measurement (102); reporting, by the UE, the determined CQI to network side (103). The present invention can realize measurement and reporting of CSI-RS-based channel quality information on the basis of non-Precoding Matrix Indicator (PMI) feedback transmissions.
    • 本发明提供一种用于报告信道质量信息的方法和装置,所述方法包括:通过用户设备(UE)根据所述信道质量信息的配置信息测量信道状态信息参考信号(CSI-RS) CSI-RS,以获取下行链路信道传输矩阵(101); 由UE根据CSI-RS端口的数量和在确定CQI时使用的物理下行链路共享信道(PDSCH)的相应传输方案,确定频域报告单元的信道质量指示符(CQI),以及下行链路 通过测量(102)获取的信道传输矩阵; 由所述UE向所述网络侧报告所确定的CQI。 本发明可以基于非预编码矩阵指示(PMI)反馈传输来实现基于CSI-RS的信道质量信息的测量和报告。
    • 9. 发明授权
    • Method and device for reporting channel state information
    • 用于报告信道状态信息的方法和设备
    • US08705482B2
    • 2014-04-22
    • US13704229
    • 2011-04-27
    • Shaohui SunXin SuDeshan MiuRanran ZhangMeifang JingQiubin GaoGuojun XiaoRakesh Tamrakar
    • Shaohui SunXin SuDeshan MiuRanran ZhangMeifang JingQiubin GaoGuojun XiaoRakesh Tamrakar
    • H04W4/00
    • H04W72/02H04B7/0478H04B7/0617H04B7/063H04B7/0639H04B7/065H04W24/10
    • The present invention discloses a method and device of reporting channel state information, including: user terminal selects the codebook used in reporting precoding matrix indicator (PMI) from double-stage codebook and selects PMI from the codebook; double-stage codebook involves codebook reflecting long-term/broadband information and that reflecting short-term/frequency selective channel information; and user terminal calculates channel quality indication; therein, when reporting through physical uplink control channel (PUCCH), the parameter used in calculating channel quality indication (CQI) includes the precoding matrix indicator (PMI) reported by user terminal through physical uplink shared channel (PUSCH); when reporting through physical uplink shared channel (PUSCH), the parameter used in calculating CQI includes the precoding matrix indicator (PMI) reported by user terminal through physical uplink control channel (PUCCH); user terminal selects the PMI and calculates CQI according to the specified reporting mode and reporting RI. The present invention can realize double-stage feedback by using the present feedback channel.
    • 本发明公开了一种报告信道状态信息的方法和装置,包括:用户终端从双级码本中选择用于报告预编码矩阵指示符(PMI)的码本,从码本中选择PMI; 双级码本涉及反映长期/宽带信息的码本,反映短期/频率选择性信道信息; 用户终端计算通道质量指示; 其中当通过物理上行链路控制信道(PUCCH)报告时,用于计算信道质量指示(CQI)的参数包括由用户终端通过物理上行链路共享信道(PUSCH)报告的预编码矩阵指示符(PMI); 当通过物理上行链路共享信道(PUSCH)报告时,用于计算CQI的参数包括用户终端通过物理上行链路控制信道(PUCCH)报告的预编码矩阵指示符(PMI); 用户终端选择PMI,并根据指定的报告模式和报告RI计算CQI。 本发明可以通过使用本反馈信道来实现双级反馈。