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    • 2. 发明授权
    • Method and device for transmitting downlink control information
    • 用于发送下行链路控制信息的方法和装置
    • US09084254B2
    • 2015-07-14
    • US14238839
    • 2012-08-22
    • Xin SuRanran ZhangMeifang JingRakesh Tamrakar
    • Xin SuRanran ZhangMeifang JingRakesh Tamrakar
    • H04W4/00H04W72/04H04L1/00H04L5/00H04B7/04
    • 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。
    • 4. 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。
    • 5. 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。
    • 7. 发明申请
    • METHOD AND DEVICE FOR TRANSMITTING/RECEIVING INFORMATION IN CLOSED-LOOP MULTI-ANTENNA SYSTEM
    • 用于在闭环多天线系统中发送/接收信息的方法和设备
    • US20120307935A1
    • 2012-12-06
    • US13577669
    • 2011-01-31
    • Ranran ZhangDeshan MiaoQiubin GaoMeifang JingRakesh Tamrakar
    • Ranran ZhangDeshan MiaoQiubin GaoMeifang JingRakesh Tamrakar
    • H04L27/00
    • H04B7/0639H04B7/0417H04B7/0465H04B7/0469H04B7/0478H04L25/03343
    • The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.
    • 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括:发送装置接收从接收装置发送的信息,其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性,并且最小化码本量化带来的性能损失,从而可以有效地提高预编码系统的性能。
    • 9. 发明授权
    • Method and device for transmitting/receiving information in closed-loop multi-antenna system
    • 闭环多天线系统中发送/接收信息的方法和装置
    • US08855229B2
    • 2014-10-07
    • US13577669
    • 2011-01-31
    • Ranran ZhangDeshan MiaoQiubin GaoMeifang JingRakesh Tamrakar
    • Ranran ZhangDeshan MiaoQiubin GaoMeifang JingRakesh Tamrakar
    • H04L27/00H04B7/06H04B7/04H04L25/03
    • H04B7/0639H04B7/0417H04B7/0465H04B7/0469H04B7/0478H04L25/03343
    • The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.
    • 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括:发送装置接收从接收装置发送的信息,其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性,并且最小化码本量化带来的性能损失,从而可以有效地提高预编码系统的性能。
    • 10. 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。