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    • 1. 发明申请
    • METHOD OF TRANSMITTING UPLINK DM-RS MULTIPLEXED WITH DATA IN UPLINK MIMO TRANSMISSION
    • 在UPLINK MIMO传输中发送数据上传多路复用数据的方法
    • US20110176632A1
    • 2011-07-21
    • US13010426
    • 2011-01-20
    • Byung Jang JEONGBangwon SEOYoung Jo KO
    • Byung Jang JEONGBangwon SEOYoung Jo KO
    • H04B7/02
    • H04B7/0413H04L5/0023H04L5/0044H04L5/0048
    • Provided is a multi-layer transmission method of multiplexing and transmitting data and a demodulation reference signal (DM-RS) sequence in an uplink digital Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) transmission employing multiple-input multiple-output (MIMO). The method includes allocating one DM-RS sequence as a DM-RS sequence of a first transmission layer for uplink transmission; allocating a DM-RS sequence whose cyclic shift (CS) value having the same sequence as the DM-RS sequence of the first transmission layer is configured to differ from that of the DM-RS sequence as a DM-RS sequence of a second transmission layer; and multiplexing layer-specific data and the layer-specific DM-RS sequences according to each of the first and second transmission layers. Accordingly, an RS can be transmitted in more OFDM symbols of a slot or subframe without an increase in overhead. Consequently, it is possible to satisfy requirements of LTE-advanced that a high frequency spectrum and a high mobile velocity should be supported, and transmit and receive a DM-RS multiplexed with data while maintaining orthogonality.
    • 提供了一种在上行数字付里叶变换扩展正交频分复用(DFT-S-OFDM)传输中多路传输数据和解调参考信号(DM-RS)序列的多层传输方法,该传输采用多输入多重 输出(MIMO)。 该方法包括:分配一个DM-RS序列作为上行链路传输的第一传输层的DM-RS序列; 分配具有与第一传输层的DM-RS序列相同的序列的循环移位(CS)值被配置为与DM-RS序列不同的DM-RS序列作为第二传输的DM-RS序列 层; 以及根据第一和第二传输层中的每一个复用层特定数据和层特定DM-RS序列。 因此,可以在时隙或子帧的更多OFDM符号中发送RS而不增加开销。 因此,可以满足LTE的要求,即应当支持高频谱和高移动速度,并且在保持正交性的同时发送和接收与数据多路复用的DM-RS。
    • 3. 发明申请
    • METHOD OF TRANSMITTING DOWNLINK CHANNEL RANK INFORMATION THROUGH PHYSICAL UPLINK SHARED CHANNEL
    • 通过物理上链路共享信道发送下行链路信道的方法
    • US20110299482A1
    • 2011-12-08
    • US13105428
    • 2011-05-11
    • Bangwon SEOYoung Jo KO
    • Bangwon SEOYoung Jo KO
    • H04W72/04
    • H04L1/0072H04B7/063H04L1/0026H04L1/0041H04L1/0057H04L1/08H04L5/0057
    • Provided is a method of transmitting channel rank information (RI) when the number of bits for transmitting the channel RI to be transmitted through a physical uplink shared channel (PUSCH) is three or more. The method includes mapping channel RI to be transmitted to a channel RI bit string of 3 bits or more, Reed-Muller coding and rate-matching the channel RI bit string using a basis sequence having a 32-bit code length, and generating modulation symbols by applying the bit sequence that has been Reed-Muller coded and rate-matched to a modulation mapper. Accordingly, the method of transmitting downlink channel RI can be employed when five or more antennas are used for downlink transmission or several carrier bands are used by carrier aggregation as specified in Third Generation Partnership Project (3GPP) long term evolution (LTE)-advanced following 3GPP LTE release 10.
    • 提供当用于发送通过物理上行链路共享信道(PUSCH)发送的信道RI的比特数为3以上时,发送信道秩信息(RI)的方法。 该方法包括将要发送的信道RI映射到3比特或更多的信道RI比特串,使用具有32比特码长的基序列的Reed-Muller编码和信道RI比特串的速率匹配,以及生成调制符号 通过将已被Reed-Muller编码和速率匹配的比特序列应用于调制映射器。 因此,当在下行链路传输中使用五个或更多个天线时,可以采用传输下行链路信道RI的方法,或者如第三代合作伙伴计划(3GPP)长期演进(LTE) - 高级跟踪中所规定的,通过载波聚合使用若干载波频带 3GPP LTE版本10。
    • 6. 发明申请
    • METHOD FOR TRANSMITTING DEDICATED REFERENCE SIGNAL, AND METHOD FOR RECEIVING DEDICATED REFERENCE SIGNAL
    • 用于发送专用参考信号的方法,以及用于接收专用参考信号的方法
    • US20100285810A1
    • 2010-11-11
    • US12769215
    • 2010-04-28
    • Young-Jo KOJae Young AHNBangwon SEO
    • Young-Jo KOJae Young AHNBangwon SEO
    • H04W72/12
    • H04B7/0452H04B7/022H04B7/024H04B7/0639H04L5/0023H04L5/0051H04W72/1231
    • Provided are a method of transmitting a dedicated reference signal (DRS), a method of receiving a DRS, and a feedback method of a terminal. The method of transmitting a DRS includes determining a DRS transmitting resource for at least one terminal which is a target of transmission, and transmitting the DRS using the determined transmission resource and notifying the terminal of information about layer used by the terminal. The method of receiving a DRS includes determining a DRS receiving resource, receiving information about layer used by a terminal from a serving cell base station, and receiving the DRS for the terminal using the determined reception resource and the information about layer. Accordingly, a terminal can find the position and sequence of its DRS. In particular, in the case of multi-user multiple input multiple output (MU-MIMO) or joint scheduling, it is possible to prevent or remove signal interference using the DRS of another terminal.
    • 提供了发送专用参考信号(DRS),接收DRS的方法和终端的反馈方法的方法。 发送DRS的方法包括确定作为传输对象的至少一个终端的DRS发送资源,以及使用所确定的传输资源发送DRS,并向终端通知关于终端使用的层的信息。 接收DRS的方法包括确定DRS接收资源,从服务小区基站接收终端使用的层的信息,以及使用所确定的接收资源和关于层的信息来接收终端的DRS。 因此,终端可以找到其DRS的位置和顺序。 特别地,在多用户多输入多输出(MU-MIMO)或联合调度的情况下,可以使用另一终端的DRS来防止或消除信号干扰。