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    • 2. 发明申请
    • APPARATUS AND METHOD FOR ALLOCATING UPLINK RESOURCES
    • 分配上网资源的装置和方法
    • US20100329200A1
    • 2010-12-30
    • US12781564
    • 2010-05-17
    • Ren-Jr ChenChien-Min LeeHua-Lung Yang
    • Ren-Jr ChenChien-Min LeeHua-Lung Yang
    • H04W72/04
    • H04W72/042H04L5/001H04L5/0044H04L5/0094
    • 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.
    • 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。
    • 3. 发明申请
    • METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR INTERFERENCE AVOIDANCE IN UPLINK COORDINATED MULTI-POINT RECEPTION
    • 上网协调多点接收干扰避免的方法,装置和计算机程序产品
    • US20100265904A1
    • 2010-10-21
    • US12762731
    • 2010-04-19
    • Hua-Lung YangRen-Jr ChenMing-Bing ChenChien-Min LeeHao-Wen Chen
    • Hua-Lung YangRen-Jr ChenMing-Bing ChenChien-Min LeeHao-Wen Chen
    • H04W72/04H04L27/28
    • H04L27/2655H04J11/0053H04L27/2607
    • 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.
    • 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。
    • 6. 发明申请
    • CONTROL CHANNEL ALLOCATION METHOD, CONTROL CHANNEL SEARCHING METHOD AND COMMUNICATION APPARATUS USING THE SAME
    • 控制信道分配方法,控制信道搜索方法和通信方法
    • US20110292891A1
    • 2011-12-01
    • US13114066
    • 2011-05-24
    • Chia-Wen HsiehChien-Min LeeRen-Jr Chen
    • Chia-Wen HsiehChien-Min LeeRen-Jr Chen
    • H04W72/04
    • H04W72/042H04L1/0046H04L1/0061H04L1/0072H04L5/001H04L5/0053
    • 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.
    • 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。
    • 7. 发明授权
    • Method and device for detecting a synchronization signal in a communication system
    • 用于在通信系统中检测同步信号的方法和装置
    • US08000415B2
    • 2011-08-16
    • US12121319
    • 2008-05-15
    • Chien-Min LeeRen-Jr Chen
    • Chien-Min LeeRen-Jr Chen
    • H04L27/06
    • H04L27/2662H04L27/2678
    • 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.
    • 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。
    • 8. 发明申请
    • METHOD AND DEVICE FOR DETECTING A SYNCHRONIZATION SIGNAL IN A COMMUNICATION SYSTEM
    • 用于检测通信系统中同步信号的方法和装置
    • US20090147900A1
    • 2009-06-11
    • US12121319
    • 2008-05-15
    • Chien-Min LeeRen-Jr Chen
    • Chien-Min LeeRen-Jr Chen
    • H04L7/04
    • H04L27/2662H04L27/2678
    • 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.
    • 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。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR DE-MAPPING SYMBOL IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEM
    • 用于多输入多输出通信系统中的映射符号的方法和装置
    • US20090003499A1
    • 2009-01-01
    • US11864936
    • 2007-09-29
    • Po-Lin ChiuRen-Jr Chen
    • Po-Lin ChiuRen-Jr Chen
    • H04B7/10H04L1/02
    • H04L25/0204H04L25/0246
    • 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.
    • 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。