公开(公告)号：US20120140663A1

公开(公告)日：2012-06-07

申请号：US13313642

申请日：2011-12-07

申请人： Cheol MUN ,  Sung Tae Kim ,  Jong Kwan Yook ,  Youn Sun Kim ,  Jin Kyu Han

发明人： Cheol MUN ,  Sung Tae Kim ,  Jong Kwan Yook ,  Youn Sun Kim ,  Jin Kyu Han

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04W72/085 ,  H04W24/10 ,  H04W48/08 ,  H04W48/20

摘要： Feedback methods and apparatuses are provided for efficiently feeding back downlink Channel State Information (CSI) using limited information in a DAS-based wireless communication system. A method includes determining, by a receiver, a candidate Antenna Port (AP) set from among a plurality of APs; selecting an active AP set from the candidate AP set; and transmitting the candidate AP set, the active AP set, and the downlink CSI of active APs included in the active AP set

摘要翻译： 提供了反馈方法和装置，用于在基于DAS的无线通信系统中使用有限的信息有效地反馈下行链路信道状态信息（CSI）。 一种方法包括由接收机确定多个AP之中的候选天线端口（AP）集合; 从所述候选AP集合中选择活动AP集合; 并且发送候选AP集，活动AP集合和活动AP集合中包括的活动AP的下行CSI

公开(公告)号：US08908548B2

公开(公告)日：2014-12-09

申请号：US13313642

申请日：2011-12-07

申请人： Cheol Mun ,  Sung Tae Kim ,  Jong Kwan Yook ,  Youn Sun Kim ,  Jin Kyu Han

发明人： Cheol Mun ,  Sung Tae Kim ,  Jong Kwan Yook ,  Youn Sun Kim ,  Jin Kyu Han

IPC分类号： H04J3/14 ,  H04W72/08 ,  H04W24/10 ,  H04W48/08 ,  H04W48/20

CPC分类号： H04W72/085 ,  H04W24/10 ,  H04W48/08 ,  H04W48/20

摘要： Feedback methods and apparatuses are provided for efficiently feeding back downlink Channel State Information (CSI) using limited information in a DAS-based wireless communication system. A method includes determining, by a receiver, a candidate Antenna Port (AP) set from among a plurality of APs; selecting an active AP set from the candidate AP set; and transmitting the candidate AP set, the active AP set, and the downlink CSI of active APs included in the active AP set.

摘要翻译： 提供了反馈方法和装置，用于在基于DAS的无线通信系统中使用有限的信息有效地反馈下行链路信道状态信息（CSI）。 一种方法包括由接收机确定多个AP之中的候选天线端口（AP）集合; 从所述候选AP集合中选择活动AP集合; 并且发送候选AP集，活动AP集合和活动AP集合中包括的活动AP的下行CSI。

公开(公告)号：US08724607B2

公开(公告)日：2014-05-13

申请号：US13371935

申请日：2012-02-13

申请人： Jin Kyu Han ,  Cheol Mun ,  Sung Tae Kim ,  Youn Sun Kim ,  Jong Kwan Yook

发明人： Jin Kyu Han ,  Cheol Mun ,  Sung Tae Kim ,  Youn Sun Kim ,  Jong Kwan Yook

IPC分类号： H04B7/216

CPC分类号： H04B7/0689 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0482 ,  H04B7/063

摘要： A transmission method and apparatus utilizing Multiple-Input and Multiple-Output (MIMO) precoding based on Distributed Antenna Systems (DASs) are provided. The transmission method includes determining active antenna ports, for a User Equipment (UE) having multiple receive antennas, from among a plurality of Distributed Antenna Ports (DAPs) evenly placed in a service area; assigning a Multiple-Input and Multiple-Output (MIMO) mode to the UE and notifying the UE of the MIMO mode assignment; determining a signal precoding vector on a basis of feedback information for the MIMO mode received from the UE; and precoding a signal using the signal precoding vector and transmitting the precoded signal through the active antenna ports.

摘要翻译： 提供了一种利用基于分布式天线系统（DAS）的多输入多输出（MIMO）预编码的传输方法和装置。 传输方法包括从均匀放置在服务区域中的多个分布式天线端口（DAP）中确定用于具有多个接收天线的用户设备（UE）的有源天线端口; 向所述UE分配多输入多输出（MIMO）模式，并向所述UE通知所述MIMO模式分配; 基于从UE接收的MIMO模式的反馈信息，确定信号预编码矢量; 并使用信号预编码矢量对信号进行预编码，并通过有源天线端口发送预编码信号。

公开(公告)号：US09130719B2

公开(公告)日：2015-09-08

申请号：US13025748

申请日：2011-02-11

申请人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Cheng Shan ,  In Ho Lee

发明人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Cheng Shan ,  In Ho Lee

IPC分类号： H04L5/00

CPC分类号： H04W72/0466 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/06 ,  H04W88/08

摘要： A control information interpretation method for use in a mobile communication system including a terminal and a base station, wherein the terminal receives, from the base station, control information including transport block information and DeModulation Reference Signal (DM-RS) antenna port allocation indication information, checks a number of the transport blocks allocated to the terminal based on the transport block information, and interpreting the DM-RS antenna port allocation indication information according to the number of transport blocks.

摘要翻译： 一种在包括终端和基站的移动通信系统中使用的控制信息解释方法，其中终端从基站接收包括传输块信息和去调制参考信号（DM-RS）天线端口分配指示信息的控制信息 根据传输块信息检查分配给终端的传输块的数量，并根据传输块的数量解释DM-RS天线端口分配指示信息。

公开(公告)号：US09628218B2

公开(公告)日：2017-04-18

申请号：US13582201

申请日：2011-03-25

申请人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han

发明人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han

IPC分类号： H04B7/04 ,  H04L1/00

CPC分类号： H04L1/0026 ,  H04L1/0029

摘要： The present invention relates to a channel status information transmission/reception method and apparatus in a wireless communication system in which the transmission apparatus generates channel status informations for at least two transmission schemes by combining rank informations corresponding to the transmission schemes into combined rank information through analyzing an uplink channel, and transmits the channel status informations for the respective transmission schemes on uplink channel, the channel status information for one of the transmission schemes containing the combined rank information; the reception apparatus receives the channel status informations corresponding to at least two transmission schemes, the channel status information for one of the transmission schemes including combined rank information for the transmission schemes, schedules downlink channel according to the channel status information, and transmits signals on the downlink channel. According to the present invention, the transmission apparatus combines rank informations of a plurality of transmission schemes and feeds back the combined rank information so as to reduce overhead at a reception apparatus.

公开(公告)号：US08548083B2

公开(公告)日：2013-10-01

申请号：US12986505

申请日：2011-01-07

申请人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han ,  In Ho Lee

发明人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han ,  In Ho Lee

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/04 ,  H04L1/0606 ,  H04L5/0007 ,  H04L5/0023 ,  H04L25/03343

摘要： A method and apparatus for mapping/demapping a resource efficiently in a wireless communication system are provided. A resource mapping method of a transmitter in a wireless communication system includes precoding pairs of symbols, arranging the pairs of precoded symbols adjacently in a resource block, and transmitting the pairs of precoded symbols in the resource block.

摘要翻译： 提供了一种用于在无线通信系统中有效地映射/解映射资源的方法和装置。 无线通信系统中的发射机的资源映射方法包括预编码符号对，在资源块中相邻布置预编码符号对，并在资源块中发送预编码符号对。

公开(公告)号：US08355367B2

公开(公告)日：2013-01-15

申请号：US12862389

申请日：2010-08-24

申请人： Jin Kyu Han ,  Youn Sun Kim ,  Cheng Shan ,  In Ho Lee ,  Sung Tae Kim

发明人： Jin Kyu Han ,  Youn Sun Kim ,  Cheng Shan ,  In Ho Lee ,  Sung Tae Kim

IPC分类号： H04Q7/00 ,  H04Q7/24

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04B7/0689 ,  H04L5/0023 ,  H04L5/0048 ,  H04W72/1273 ,  H04W88/10

摘要： A method and apparatus for transmitting/receiving reference signals in Long Term Evolution (LTE) and LTE-Advanced (LTE-A) systems includes determining whether a dedicated reference signal is detected in a current subframe; estimating, if a dedicated reference signal is detected in the current subframe, a data channel using the dedicated reference signal to receive data; and estimating, if no dedicated reference signal is detected in the current subframe, a data channel using a common reference signal detected in the current subframe to receive data. The transmission scheme uses a DeModulation Reference Signal (DM-RS) for channel response estimation. To secure backward compatibility of the LTE-A system, a Common Reference Signal is transmitted in normal subframes.

摘要翻译： 一种用于在长期演进（LTE）和LTE高级（LTE-A）系统中发送/接收参考信号的方法和装置，包括确定在当前子帧中是否检测到专用参考信号; 如果在当前子帧中检测到专用参考信号，则估计使用专用参考信号接收数据的数据信道; 以及如果在当前子帧中没有检测到专用参考信号，则估计使用当前子帧中检测到的公共参考信号的数据信道来接收数据。 传输方案使用解调参考信号（DM-RS）进行信道响应估计。 为了确保LTE-A系统的向后兼容性，在普通子帧中传送公共参考信号。

公开(公告)号：US08634363B2

公开(公告)日：2014-01-21

申请号：US12987436

申请日：2011-01-10

申请人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Shan Cheng ,  In Ho Lee

发明人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Shan Cheng ,  In Ho Lee

IPC分类号： H04W4/00

CPC分类号： H04L1/0693 ,  H04B17/24 ,  H04B17/318 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0092 ,  H04L25/0226 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/04 ,  H04W72/042 ,  H04W72/085 ,  H04W72/1226 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/20

摘要： A method for processing a Channel State Information Reference Signal (CSI-RS) in a wireless communication system based on a multiple access scheme is provided. The CSI-RS transmission method defines a plurality of CSI-RS patterns, assigns the CSI-RS patterns to individual cells, uses the CSI-RSs alternately per Physical Resource Block (PRB) so as to utilize the transmission powers of all antenna ports for transmitting CSI-RSs, transmits Coordinated Multi Point (CoMP) CSI-RSs and non-CoMP CSI-RSs separately, and mutes specific resources in association with the CSI-RS pattern of adjacent cells.

摘要翻译： 提供了一种在基于多址方案的无线通信系统中处理信道状态信息参考信号（CSI-RS）的方法。 CSI-RS传输方法定义了多个CSI-RS模式，将CSI-RS模式分配给各个小区，每个物理资源块（PRB）交替使用CSI-RS，以便利用所有天线端口的发射功率 发送CSI-RS，分别发送协调多点（CoMP）CSI-RS和非CoMP CSI-RS，并将相邻小区的CSI-RS模式相关联的特定资源静音。

公开(公告)号：US20120320832A1

公开(公告)日：2012-12-20

申请号：US13582201

申请日：2011-03-25

申请人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han

发明人： Sung Tae Kim ,  Youn Sun Kim ,  Jin Kyu Han

IPC分类号： H04W4/00

CPC分类号： H04L1/0026 ,  H04L1/0029

摘要： The present invention relates to a channel status information transmission/reception method and apparatus in a wireless communication system in which the transmission apparatus generates channel status informations for at least two transmission schemes by combining rank informations corresponding to the transmission schemes into combined rank information through analyzing an uplink channel, and transmits the channel status informations for the respective transmission schemes on up link channel, the channel status information for one of the transmission schemes containing the combined rank information; the reception apparatus receives the channel status informations corresponding to at least two transmission schemes, the channel status information for one of the transmission schemes including combined rank information for the transmission schemes, schedules downlink channel according to the channel status information, and transmits signals on the downlink channel. According to the present invention, the transmission apparatus combines rank informations of a plurality of transmission schemes and feeds back the combined rank information so as to reduce overhead at a reception apparatus.

摘要翻译： 本发明涉及一种无线通信系统中的信道状态信息发送/接收方法和装置，其中，传输装置通过分析组合的等级信息，通过将对应于传输方案的等级信息组合到等级信息中来生成至少两个传输方式的信道状态信息 上行链路信道，并且在上行链路信道上发送用于各个传输方案的信道状态信息，用于包含组合等级信息的传输方案之一的信道状态信息; 接收装置接收与至少两个传输方案对应的信道状态信息，包括用于传输方案的组合等级信息的传输方案之一的信道状态信息，根据信道状态信息调度下行链路信道，并且在 下行通道。 根据本发明，发送装置组合多个发送方式的秩信息，反馈组合等级信息，以减少接收装置的开销。

公开(公告)号：US20110194536A1

公开(公告)日：2011-08-11

申请号：US13025748

申请日：2011-02-11

申请人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Cheng Shan ,  In Ho Lee

发明人： Youn Sun Kim ,  Jin Kyu Han ,  Sung Tae Kim ,  Myung Hoon Yeon ,  Cheng Shan ,  In Ho Lee

IPC分类号： H04B7/216 ,  H04W4/00

CPC分类号： H04W72/0466 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/06 ,  H04W88/08

摘要： A control information interpretation method for use in a mobile communication system including a terminal and a base station, wherein the terminal receives, from the base station, control information including transport block information and DeModulation Reference Signal (DM-RS) antenna port allocation indication information, checks a number of the transport blocks allocated to the terminal based on the transport block information, and interpreting the DM-RS antenna port allocation indication information according to the number of transport blocks.

摘要翻译： 一种在包括终端和基站的移动通信系统中使用的控制信息解释方法，其中终端从基站接收包括传输块信息和去调制参考信号（DM-RS）天线端口分配指示信息的控制信息 根据传输块信息检查分配给终端的传输块的数量，并根据传输块的数量解释DM-RS天线端口分配指示信息。