专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08311134B2 Method for transmitting scattered pilot signals in multi-carrier system 有权
标题翻译：用于在多载波系统中发射分散导频信号的方法
公开(公告)号：US08311134B2
公开(公告)日：2012-11-13
申请号：US12145740
申请日：2008-06-25
申请人： Hui Zhang , Liangchuan Kang , Fei Meng , Jiongliang Li
发明人： Hui Zhang , Liangchuan Kang , Fei Meng , Jiongliang Li
IPC分类号： H04K1/10
CPC分类号： H04L5/0007 , H04L5/0051 , H04L25/0226 , H04L25/0232
摘要： A method for transmitting scattered pilot signals in a multi-carrier system is disclosed. The method includes: in each time slot, in time dimension, putting each 4 OFDM symbols into a group according to the order of the OFDM symbols; in each group of OFDM symbols, in frequency dimension, selecting, for each OFDM symbol, a plurality of valid sub-carriers to transmit scattered pilots, wherein for a same OFDM symbol, between each 2 valid sub-carriers selected, there are 7 valid sub-carriers; for different OFDM symbols in a same group, the valid sub-carriers selected are interleaving in frequency domain; and transmitting scattered pilot signals on the valid sub-carriers selected. The solution helps the multi-carrier system to handle multi-path channel with large delay spread, to obtain more accurate channel estimation and to achieve better receiving performance.
摘要翻译：公开了一种在多载波系统中传输分散导频信号的方法。该方法包括：在每个时隙中，在时间维度上，根据OFDM符号的顺序将每个4个OFDM符号放入一个组; 在每个OFDM符号组中，在频率维度中，为每个OFDM符号选择多个有效子载波以发送散射导频，其中对于相同的OFDM符号，在选择的每个2个有效子载波之间有7个有效子载体; 对于同一组中的不同OFDM符号，选择的有效子载波在频域中进行交织; 并在所选择的有效子载波上发送分散的导频信号。该解决方案有助于多载波系统处理具有较大延迟扩展的多径信道，从而获得更准确的信道估计并实现更好的接收性能。

2. 发明申请

US20080317147A1 METHOD FOR TRANSMITTING SCATTERED PILOT SIGNALS IN MULTI-CARRIER SYSTEM 有权
标题翻译：用于在多载波系统中发送散射的引导信号的方法
公开(公告)号：US20080317147A1
公开(公告)日：2008-12-25
申请号：US12145740
申请日：2008-06-25
申请人： Hui ZHANG , Liangchuan Kang , Fei Meng , Jiongliang Li
发明人： Hui ZHANG , Liangchuan Kang , Fei Meng , Jiongliang Li
IPC分类号： H04L27/28
CPC分类号： H04L5/0007 , H04L5/0051 , H04L25/0226 , H04L25/0232
摘要： A method for transmitting scattered pilot signals in a multi-carrier system is disclosed. The method includes: in each time slot, in time dimension, putting each 4 OFDM symbols into a group according to the order of the OFDM symbols; in each group of OFDM symbols, in frequency dimension, selecting, for each OFDM symbol, a plurality of valid sub-carriers to transmit scattered pilots, wherein for a same OFDM symbol, between each 2 valid sub-carriers selected, there are 7 valid sub-carriers; for different OFDM symbols in a same group, the valid sub-carriers selected are interleaving in frequency domain; and transmitting scattered pilot signals on the valid sub-carriers selected. The solution helps the multi-carrier system to handle multi-path channel with large delay spread, to obtain more accurate channel estimation and to achieve better receiving performance.
摘要翻译：公开了一种在多载波系统中传输分散导频信号的方法。该方法包括：在每个时隙中，在时间维度上，根据OFDM符号的顺序将每个4个OFDM符号放入一个组; 在每个OFDM符号组中，在频率维度中，为每个OFDM符号选择多个有效子载波以发送散射导频，其中对于相同的OFDM符号，在选择的每个2个有效子载波之间有7个有效子载体; 对于同一组中的不同OFDM符号，选择的有效子载波在频域中进行交织; 并在所选择的有效子载波上发送分散的导频信号。该解决方案有助于多载波系统处理具有较大延迟扩展的多径信道，从而获得更准确的信道估计并实现更好的接收性能。

3. 发明申请

US20080317184A1 METHOD FOR TRANSMITTING SYNCHRONIZATION SIGNAL IN MOBILE MULTIMEDIA SYSTEM 审中-公开
标题翻译：用于在移动多媒体系统中传输同步信号的方法
公开(公告)号：US20080317184A1
公开(公告)日：2008-12-25
申请号：US12145746
申请日：2008-06-25
申请人： Hui ZHANG , Junyun Yang , Fei Meng , Yu Xu , Jiongliang Li
发明人： Hui ZHANG , Junyun Yang , Fei Meng , Yu Xu , Jiongliang Li
IPC分类号： H04L7/00
CPC分类号： H04H20/95 , H04L7/041
摘要： The present invention discloses a method for transmitting a synchronization signal in a mobile multimedia system. In the method, a transmitter of the system transmits a synchronization signal sequence at a regular interval. The methods includes: generating a first synchronization signal sequence; generating a second synchronization signal sequence by performing a reversible transform for the first synchronization signal sequence; and transmitting the first and the second synchronization signal sequences in cascade. By the method provided by the present invention for transmitting a synchronization signal in a mobile multimedia system, a channel with wider delay spread can be handled, more precise and stabler synchronization performance can be achieved and the channel estimation module can be helped to get more accurate channel frequency domain response.
摘要翻译：本发明公开了一种在移动多媒体系统中发送同步信号的方法。在该方法中，系统的发射机以规则的间隔发送同步信号序列。所述方法包括：产生第一同步信号序列; 通过对所述第一同步信号序列执行可逆变换来产生第二同步信号序列; 并且级联地发送第一和第二同步信号序列。通过本发明提供的用于在移动多媒体系统中发送同步信号的方法，可以处理具有更宽的延迟扩展的信道，可以实现更精确和更稳定的同步性能，并且可以帮助信道估计模块获得更准确通道频域响应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式