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61. 发明申请

US20100142476A1 Method for mapping downlink dedicated pilots to resource elements in extended cyclic prefix frame structure 有权
标题翻译：将下行专用导频映射到扩展循环前缀帧结构中的资源元素的方法
公开(公告)号：US20100142476A1
公开(公告)日：2010-06-10
申请号：US12671389
申请日：2008-12-25
申请人： Jing Jiang , Guanghui Yu , Hui Yu
发明人： Jing Jiang , Guanghui Yu , Hui Yu
IPC分类号： H04W72/04
CPC分类号： H04L5/0051 , H04B7/068
摘要： A method for mapping downlink dedicated pilot frequencies of an extend cyclic prefix frame structure to physical resource blocks, applied in a long term evolution system, includes the following steps: the first downlink dedicated pilot frequency of each channel is mapped to the specific position of a physical resource block; other downlink dedicated pilot frequencies of the channel are mapping-processed according to the time domain interval, frequency domain interval and the preset regulation; the time domain interval is two or three OFDM symbols, the frequency domain interval is two sub-carriers of the same time domain. By defining the positions of pilot frequencies in the physical resource block, the public pilot frequency can obtain the information of all channels when a base station uses a beam pattern of more than four antennas. Making the channel information obtained by dedicated pilot frequencies contain the real channel information and the process-weight-value of a beam pattern, a UE does not need to obtain the transmission-weight-value of a beam pattern, such as to avoid the feedback cost of weight-values of a beam pattern.
摘要翻译：一种用于将扩展循环前缀帧结构的下行专用导频频谱映射到长期演进系统中应用的物理资源块的方法，包括以下步骤：将每个信道的第一下行专用导频频率映射到物理资源块根据时域间隔，频域间隔和预设调节对信道的其他下行专用导频进行映射处理; 时域间隔是两个或三个OFDM符号，频域间隔是同一时域的两个子载波。通过在物理资源块中定义导频的位置，当基站使用多于四个天线的波束模式时，公共导频可以获得所有信道的信息。使专用导频获得的信道信息包含实数信道信息和波束模式的处理权重值，则UE不需要获得波束图案的发送权重值，例如避免反馈波束图案的重量值成本。

62. 发明申请

US20080075181A1 Pilot Allocation Method and Device of Orthogonal Frequency Division Multiplexing System 有权
标题翻译：正交频分复用系统的导频分配方法及装置
公开(公告)号：US20080075181A1
公开(公告)日：2008-03-27
申请号：US11792650
申请日：2005-06-02
申请人： Shuqiang Xia , Jiashi Lin , Peng Zhang , Guanghui Yu
发明人： Shuqiang Xia , Jiashi Lin , Peng Zhang , Guanghui Yu
IPC分类号： H04L27/28
CPC分类号： H04L5/0048 , H04L5/0023
摘要： The present invention relates to a pilot allocation method for an orthogonal frequency division multiplexing system, and the said method is used for a communication system which at least includes one transmitter and two transmitting antennas, characterized in including the following steps: step 1, a user data carrier allocating module in the transmitter allocating a data carrier for a user data symbol, then mapping the user data to the allocated carrier, and finally, outputting the mapped user data to a inverse fourier transform module in the transmitter; step 2, at the same time with step 1, the pilot data carrier allocating module in the transmitter determining the allocation rule of the pilot data according to the subchannel allocation manner and the number of the transmitting antenna of the system, and allocating the pilot carriers for the pilot data, then mapping the pilot data to the allocated carriers, and finally, outputting the pilot data to the inverse fourier transform module. The present invention synthetically considers the question of practical application as well as reducing the floor effect.
摘要翻译：本发明涉及一种用于正交频分复用系统的导频分配方法，并且所述方法用于至少包括一个发射机和两个发射天线的通信系统，其特征在于包括以下步骤：步骤1，用户所述发射机中的数据载波分配模块为用户数据符号分配数据载体，然后将用户数据映射到所分配的载波，最后将映射的用户数据输出到发射机中的反向傅立叶变换模块; 步骤2，在步骤1的同时，发射机中的导频数据载波分配模块根据子信道分配方式和系统发射天线的数量确定导频数据的分配规则，并分配导频载波对于导频数据，然后将导频数据映射到分配的载波，最后将导频数据输出到反向傅立叶变换模块。本发明综合考虑了实际应用的问题，降低了落地效应。

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