公开(公告)号：US08488693B2

公开(公告)日：2013-07-16

申请号：US12406394

申请日：2009-03-18

申请人： Chung-Lien Ho ,  Ren-Jr Chen ,  Yan-Xiu Zheng

发明人： Chung-Lien Ho ,  Ren-Jr Chen ,  Yan-Xiu Zheng

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L5/0048 ,  H04L5/0007

摘要： A method used in a wireless communication apparatus based on reference signals is provided. The method may include obtaining a plurality of pilot rules and obtaining radio channel information of a radio channel between the wireless communication apparatus and another wireless communication apparatus. The wireless communication apparatus may be in an area including at least one cell and using one or more data streams. Further, the method may include selecting applicable pilot rules from the plurality of pilot rules based on the radio channel information, creating at least one pilot structure to be used in the radio channel; and using the created at least one pilot structure to transmit data over the radio channel.

摘要翻译： 提供了一种在基于参考信号的无线通信装置中使用的方法。 该方法可以包括获得多个导频规则并获得无线通信装置与另一无线通信装置之间的无线电信道的无线电信道信息。 无线通信装置可以在包括至少一个小区的区域中并且使用一个或多个数据流。 此外，该方法可以包括基于无线电信道信息从多个导频规则中选择适用的导频规则，创建要在无线电信道中使用的至少一个导频结构; 以及使用所创建的至少一个导频结构来通过无线电信道发送数据。

公开(公告)号：US20090323838A1

公开(公告)日：2009-12-31

申请号：US12406394

申请日：2009-03-18

申请人： Chung-Lien HO ,  Ren-Jr Chen ,  Yan-Xiu Zheng

发明人： Chung-Lien HO ,  Ren-Jr Chen ,  Yan-Xiu Zheng

IPC分类号： H04L27/28

CPC分类号： H04L5/0048 ,  H04L5/0007

摘要： A method used in a wireless communication apparatus based on reference signals is provided. The method may include obtaining a plurality of pilot rules and obtaining radio channel information of a radio channel between the wireless communication apparatus and another wireless communication apparatus. The wireless communication apparatus may be in an area including at least one cell and using one or more data streams. Further, the method may include selecting applicable pilot rules from the plurality of pilot rules based on the radio channel information, creating at least one pilot structure to be used in the radio channel; and using the created at least one pilot structure to transmit data over the radio channel.

摘要翻译： 提供了一种在基于参考信号的无线通信装置中使用的方法。 该方法可以包括获得多个导频规则并获得无线通信装置与另一无线通信装置之间的无线电信道的无线电信道信息。 无线通信装置可以在包括至少一个小区的区域中并且使用一个或多个数据流。 此外，该方法可以包括基于无线电信道信息从多个导频规则中选择适用的导频规则，创建要在无线电信道中使用的至少一个导频结构; 以及使用所创建的至少一个导频结构来通过无线电信道发送数据。

公开(公告)号：US20110292891A1

公开(公告)日：2011-12-01

申请号：US13114066

申请日：2011-05-24

申请人： Chia-Wen Hsieh ,  Chien-Min Lee ,  Ren-Jr Chen

发明人： Chia-Wen Hsieh ,  Chien-Min Lee ,  Ren-Jr Chen

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L1/0046 ,  H04L1/0061 ,  H04L1/0072 ,  H04L5/001 ,  H04L5/0053

摘要： UE-specific search spaces (UE-SS) for a carrier-aggregated communication system are introduced to decrease the number of blind decoding attempts, decrease downlink control information (DCI) blocking probability, and maintain good blind decoding performance. In the proposed control channel allocation method, the control channel searching method and the communication apparatus thereof, the UE-specific search spaces are extended except control channel element (CCE) aggregation level one. Further, a new CCE aggregation level is created in the UE-specific search spaces. The sum of the number of control channel candidates for all aggregation levels is bounded by the maximum number of PDCCH candidates. In addition, uplink MIMO grant command is just allocated in a pre-configured component carrier or a set of pre-configured component carriers, but uplink MIMO grant command is not allocated in the remaining component carriers.

摘要翻译： 引入用于载波聚合通信系统的UE专用搜索空间（UE-SS），以减少盲解码尝试次数，减少下行链路控制信息（DCI）阻塞概率，并保持良好的盲解码性能。 在所提出的控制信道分配方法中，控制信道搜索方法及其通信装置，除了控制信道要素（CCE）聚合一级外，扩展了UE专用搜索空间。 此外，在UE特定搜索空间中创建新的CCE聚合级别。 所有聚合级别的控制信道候选数的总和由PDCCH候选的最大数量限制。 此外，上行链路MIMO授权命令刚刚分配在预先配置的分量载波或一组预先配置的分量载波中，但是在其余分量载波中未分配上行链路MIMO授权命令。

公开(公告)号：US08000415B2

公开(公告)日：2011-08-16

申请号：US12121319

申请日：2008-05-15

申请人： Chien-Min Lee ,  Ren-Jr Chen

发明人： Chien-Min Lee ,  Ren-Jr Chen

IPC分类号： H04L27/06

CPC分类号： H04L27/2662 ,  H04L27/2678

摘要： A method and a device for detecting a synchronization signal with a high identification rate are provided, which are suitable for a wide-area Orthogonal Frequency Division Multiplexing (OFDM) system. The method and device can precisely detect information of a synchronization signal, without being interfered by transmission channels and noises in an external environment. Three sliding windows are used to obtaining a balance value as an offset value for the output signal of the method and the device. A peak position of the output signal is identified and then compensated for a delay caused by the length of one of the sliding windows. Such a position is an edge of the synchronization signal.

摘要翻译： 提供了一种用于检测具有高识别率的同步信号的方法和装置，其适用于广域正交频分复用（OFDM）系统。 该方法和装置可以精确地检测同步信号的信息，而不受外部环境中的传输信道和噪声的干扰。 使用三个滑动窗口来获得平衡值作为方法和装置的输出信号的偏移值。 识别输出信号的峰值位置，然后补偿由一个滑动窗口的长度引起的延迟。 这样的位置是同步信号的边缘。

公开(公告)号：US20090147900A1

公开(公告)日：2009-06-11

申请号：US12121319

申请日：2008-05-15

申请人： Chien-Min Lee ,  Ren-Jr Chen

发明人： Chien-Min Lee ,  Ren-Jr Chen

IPC分类号： H04L7/04

CPC分类号： H04L27/2662 ,  H04L27/2678

摘要： A method and a device for detecting a synchronization signal with a high identification rate are provided, which are suitable for a wide-area Orthogonal Frequency Division Multiplexing (OFDM) system. The method and device can precisely detect information of a synchronization signal, without being interfered by transmission channels and noises in an external environment. Three sliding windows are used to obtaining a balance value as an offset value for the output signal of the method and the device. A peak position of the output signal is identified and then compensated for a delay caused by the length of one of the sliding windows. Such a position is an edge of the synchronization signal.

摘要翻译： 提供了一种用于检测具有高识别率的同步信号的方法和装置，其适用于广域正交频分复用（OFDM）系统。 该方法和装置可以精确地检测同步信号的信息，而不受外部环境中的传输信道和噪声的干扰。 使用三个滑动窗口来获得平衡值作为方法和装置的输出信号的偏移值。 识别输出信号的峰值位置，然后补偿由一个滑动窗口的长度引起的延迟。 这样的位置是同步信号的边缘。

公开(公告)号：US20100329200A1

公开(公告)日：2010-12-30

申请号：US12781564

申请日：2010-05-17

申请人： Ren-Jr Chen ,  Chien-Min Lee ,  Hua-Lung Yang

发明人： Ren-Jr Chen ,  Chien-Min Lee ,  Hua-Lung Yang

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0094

摘要： An apparatus is provided for allocating uplink resources in a system in which downlink component carrier bands are aggregated and uplink component carrier bands are aggregated. The apparatus includes a processor configured to perform or cause the apparatus to perform a number of functions. The functions include receiving an assignment or an indication of an assignment of one or more resource indices to the apparatus. Additional resource indices for the apparatus may be derived as a function of an assigned resource index. The assigned resource indices and/or additional resource indices may be pre-assigned to respective pairs of downlink and uplink component carrier bands, or may be mapped to uplink component carriers. The apparatus may then be enabled to transmit or may prepare for transmission uplink control signals in an uplink component carrier band in accordance with an allocation of uplink resources specified by one of the resource indices.

摘要翻译： 提供一种用于在其中聚合下行链路分量载波频带并且上行链路分量载波频带被聚合的系统中分配上行链路资源的装置。 该装置包括处理器，其被配置为执行或使该装置执行多个功能。 这些功能包括接收一个或多个资源索引的分配或指示给装置。 作为所分配的资源索引的函数，可以导出装置的附加资源索引。 分配的资源索引和/或附加资源索引可以被预分配给相应的下行链路和上行链路分量载波对，或者可以被映射到上行链路分量载波。 然后可以根据由资源索引之一指定的上行链路资源的分配，使装置能够在上行链路分量载波频带中发送或准备传输上行链路控制信号。

公开(公告)号：US20100265904A1

公开(公告)日：2010-10-21

申请号：US12762731

申请日：2010-04-19

申请人： Hua-Lung Yang ,  Ren-Jr Chen ,  Ming-Bing Chen ,  Chien-Min Lee ,  Hao-Wen Chen

发明人： Hua-Lung Yang ,  Ren-Jr Chen ,  Ming-Bing Chen ,  Chien-Min Lee ,  Hao-Wen Chen

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04L27/2655 ,  H04J11/0053 ,  H04L27/2607

摘要： A method of providing interference avoidance in uplink CoMP may include generating an orthogonal frequency division multiplexing (OFDM) symbol for uplink transmission to coordinated multi-point (CoMP) cells, and providing a cyclic-prefix and a cyclic-postfix for the OFDM symbol generated to reduce uplink interference without backhaul transmission for delay or timing advance information. A corresponding apparatus and computer program product are also provided. An alternative method of providing interference avoidance in uplink CoMP may include measuring timing differences between downlink signals received at a mobile terminal in connection with coordinated multi-point (CoMP) transmission from a serving cell and one or more coordinating cells and adjusting uplink transmission timing for signals to be transmitted from the mobile terminal based on the timing differences measured. A corresponding apparatus and computer program product are also provided.

摘要翻译： 在上行链路CoMP中提供干扰避免的方法可以包括：产生用于上行链路传输到协调多点（CoMP）小区的正交频分复用（OFDM）符号，并为所生成的OFDM符号提供循环前缀和循环后缀 以减少上行链路干扰，无需进行后向传输，以实现延迟或定时提前信息。 还提供了相应的装置和计算机程序产品。 在上行链路CoMP中提供干扰避免的替代方法可以包括测量在移动终端处接收的下行链路信号与来自服务小区和一个或多个协调小区的协调多点（CoMP）传输之间的定时差异，并且调整上行链路传输定时 基于测量的定时差从移动终端发送的信号。 还提供了相应的装置和计算机程序产品。

公开(公告)号：US20100177694A1

公开(公告)日：2010-07-15

申请号：US12614091

申请日：2009-11-06

申请人： Hua-Lung YANG ,  Chien-Min Lee ,  Ren-Jr Chen

发明人： Hua-Lung YANG ,  Chien-Min Lee ,  Ren-Jr Chen

IPC分类号： H04W40/00

CPC分类号： H04W74/0833 ,  H04L5/0053

摘要： A method for a user equipment to transmit uplink control information to a base station, the base station being configured to receive uplink control information on a plurality of groups of subcarriers. The method includes: randomly determining one of the groups of subcarriers; and transmitting uplink control information on the randomly determined group of subcarriers.

摘要翻译： 一种用于将用户设备向基站发送上行链路控制信息的方法，所述基站被配置为在多个子载波组上接收上行链路控制信息。 该方法包括：随机确定子载波组中的一个; 以及对随机确定的子载波组发送上行链路控制信息。

公开(公告)号：US08677204B2

公开(公告)日：2014-03-18

申请号：US12434868

申请日：2009-05-04

申请人： Yu-Chuan Fang ,  Ren-Jr Chen

发明人： Yu-Chuan Fang ,  Ren-Jr Chen

IPC分类号： G08C25/02

CPC分类号： H04L1/1819 ,  H04L1/0068 ,  H04L1/0071

摘要： A method of error control, including forming a plurality of first data symbols from a plurality of data bits, transmitting a first signal including the plurality of first data symbols, receiving a request for retransmission, forming a plurality of second data symbols from the plurality of data bits, and transmitting a second signal including the plurality of second data symbols. At least one of the first data symbols is formed from several of the plurality of data bits such that none of the second data symbols is formed from the several of the plurality of data bits.

摘要翻译： 一种误差控制方法，包括从多个数据比特形成多个第一数据符号，发送包括多个第一数据符号的第一信号，接收重传请求，从多个数据比特形成多个第二数据符号 数据位，以及发送包括多个第二数据符号的第二信号。 第一数据符号中的至少一个由多个数据位中的若干数据位形成，使得不存在多个数据位中的若干数据位而形成第二数据符号。

公开(公告)号：US20090003499A1

公开(公告)日：2009-01-01

申请号：US11864936

申请日：2007-09-29

申请人： Po-Lin Chiu ,  Ren-Jr Chen

发明人： Po-Lin Chiu ,  Ren-Jr Chen

IPC分类号： H04B7/10 ,  H04L1/02

CPC分类号： H04L25/0204 ,  H04L25/0246

摘要： A method and an apparatus for de-mapping symbols in a Multi-Input Multi-Output (MIMO) system are provided. In the present invention, an estimated channel effect and a plurality of received data symbols are used to estimate a plurality of transmitted data symbols. A plurality of constellation points around an estimated value are selected as the detected values of the transmitted data symbol after the estimated value of one of the transmitted data symbols is calculated. Then, the detected values are used to calculate the detected values of remaining transmitted data symbols separately so as to obtain a plurality of detected value sets. Finally, a best one among the detected value sets is chosen as a result of de-mapping the received symbols. Therefore, only a few detected value sets are calculated and a better detected result is obtained, which possesses low complexity and high performance.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）系统中去映射符号的方法和装置。 在本发明中，使用估计的信道效应和多个接收的数据符号来估计多个发送的数据符号。 在计算出发送数据符号之一的估计值之后，选择围绕估计值的多个星座点作为发送数据符号的检测值。 然后，使用检测值分别计算剩余发送数据符号的检测值，以获得多个检测值集合。 最后，作为取消映射所接收到的符号的结果，选择检测值集合中的最佳值。 因此，仅计算几个检测值集，并获得更好的检测结果，具有低复杂性和高性能。