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    • 21. 发明申请
    • METHOD AND DEVICE FOR TRANSMITTING DOWNLINK CONTROL INFORMATION
    • 用于发送下行链路控制信息的方法和设备
    • US20140313994A1
    • 2014-10-23
    • US14238839
    • 2012-08-22
    • Xin SuRanran ZhangMeifang JingRakesh Tamrakar
    • Xin SuRanran ZhangMeifang JingRakesh Tamrakar
    • H04W72/04H04L5/00
    • H04W72/042H04B7/0417H04L1/0041H04L5/001H04L5/0035H04L5/0048H04L5/0051
    • Disclosed in the invention are a method and a device for transmitting downlink control information (DCI). The method comprises: processing the downlink control information to generate downlink control information code words; scrambling and modulating the downlink control information code words in turn to generate a modulation symbol sequence; mapping the modulation symbol sequence to v data layers, wherein v is an integer which is more than or equal to 1; mapping modulation symbols on the v data layers to a demodulation reference signal (DMRS) antenna port; and mapping the modulation symbols on the DMRS antenna port to a physical antenna and sending to user equipment (UE). According to the method and the device of the invention, multi-layer data transmission can be supported, the transmission mode is more flexible, and transmission efficiency is higher.
    • 本发明公开了一种用于发送下行链路控制信息(DCI)的方法和装置。 该方法包括:处理下行链路控制信息以生成下行链路控制信息码字; 依次对下行链路控制信息码字进行加扰和调制,以生成调制符号序列; 将调制符号序列映射到v个数据层,其中v是大于或等于1的整数; 将v数据层上的调制符号映射到解调参考信号(DMRS)天线端口; 并将DMRS天线端口上的调制符号映射到物理天线并发送给用户设备(UE)。 根据本发明的方法和装置,可以支持多层数据传输,传输模式更加灵活,传输效率更高。
    • 22. 发明授权
    • Method of and apparatus for mapping to demodulation reference signal port
    • 用于映射到解调参考信号端口的方法和装置
    • US08837371B2
    • 2014-09-16
    • US13578335
    • 2011-01-31
    • Xin SuDeshan MiaoRakesh Tamrakar
    • Xin SuDeshan MiaoRakesh Tamrakar
    • H04W4/00H04L5/00
    • H04L5/0037H04L1/1893H04L5/0026H04L5/0051H04L5/0058
    • A demodulation reference signal port mapping method is disclosed. The method includes: a base station communicates with a User Equipment (UE), and allocates corresponding data stream to the UE according to the attribution of the UE; the base station maps the corresponding data stream from a layer to a corresponding demodulation reference signal port; the base station transmits the corresponding data stream to the UE via demodulation reference signal port. By restricting the demodulation reference signal port mapping solution of rank=1 to rank=8 and the demodulation reference signal port mapping solution when the retransmission occurs, the technical solution enables the demodulation reference signal port mapping solution to be compatible with the present system and to keep lower overhead of the demodulation reference signal.
    • 公开了解调参考信号端口映射方法。 该方法包括:基站与用户设备(UE)进行通信,并根据UE的属性向UE分配对应的数据流; 基站将相应的数据流映射到相应的解调参考信号端口; 基站通过解调参考信号端口将对应的数据流发送给UE。 通过在发生重发时将秩= 1的解调参考信号端口映射解决方案限制为rank = 8,解调参考信号端口映射解决方案使得解调参考信号端口映射解决方案能够与本系统兼容, 保持较低的解调参考信号的开销。
    • 23. 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。
    • 24. 发明申请
    • METHOD AND DEVICE FOR REPORTING CHANNEL STATE INFORMATION
    • 报告信道状态信息的方法和装置
    • US20130215841A1
    • 2013-08-22
    • US13704229
    • 2011-04-27
    • Shaohui SunXin SunDeshan MiuRanran ZhangMeifang JingQiubin GaoGuojun XiaoRakesh Tamrakar
    • Shaohui SunXin SunDeshan MiuRanran ZhangMeifang JingQiubin GaoGuojun XiaoRakesh Tamrakar
    • H04W72/02
    • 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。