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1. 发明申请

US20090207890A1 Diversity transmitter-receiver in cdma system using space-time code, and method thereof 有权
标题翻译：使用时空码的cdma系统中的分集发射机 - 接收机及其方法
公开(公告)号：US20090207890A1
公开(公告)日：2009-08-20
申请号：US10593011
申请日：2004-12-21
申请人： Dong-Woon Bai , Woo-Yong Lee , Hyun-Seo Oh
发明人： Dong-Woon Bai , Woo-Yong Lee , Hyun-Seo Oh
IPC分类号： H04B1/707
CPC分类号： H04L1/065 , H04B1/707 , H04B7/02
摘要： A diversity transmitting/receiving apparatus and method is provided, which is implemented using space-time trellis codes (STTC) constructed from a Pseudo Noise (PN) sequence set in a Direct Sequence (DS) CDMA system. The transmitter comprises a PN sequence generator, a space-time encoder, first and second modulators, and first and second multiple transmit antennas. The space-time encoder selects two of the multiple PN sequences to construct STTC, and space-time encodes data from a data source according to the STTC to output an Wary data symbol. The two modulators modulate the space-time encoded data according to the STTC. The two multiple transmit antennas wirelessly transmit outputs of the two modulators, respectively. By applying a method using space-time coding in a DS CDMA system including multiple transmit antennas, it is possible to achieve both diversity and additional coding gain and also to reduce multiple user interference by increasing the PN sequence length.
摘要翻译：提供了一种分集发送/接收装置和方法，其使用由在直接序列（DS）CDMA系统中设置的伪噪声（PN）序列构成的空时网格码（STTC）来实现。发射机包括PN序列发生器，时空编码器，第一和第二调制器以及第一和第二多个发射天线。空时编码器选择多个PN序列中的两个构造STTC，并且根据STTC对来自数据源的数据进行空时编码以输出谨慎数据符号。两个调制器根据STTC调制空间编码数据。两个多个发射天线分别无线地传输两个调制器的输出。通过在包括多个发射天线的DS CDMA系统中应用使用空时编码的方法，可以实现分集和附加编码增益两者，并且还可以通过增加PN序列长度来减少多个用户干扰。

2. 发明授权

US07769077B2 Diversity transmitter-receiver in CDMA system using space-time code, and method thereof 有权
标题翻译：使用时空码的CDMA系统中的分集发射机 - 接收机及其方法
公开(公告)号：US07769077B2
公开(公告)日：2010-08-03
申请号：US10593011
申请日：2004-12-21
申请人： Dong-Woon Bai , Woo-Yong Lee , Hyun-Seo Oh
发明人： Dong-Woon Bai , Woo-Yong Lee , Hyun-Seo Oh
IPC分类号： H04B1/00
CPC分类号： H04L1/065 , H04B1/707 , H04B7/02
摘要： A diversity transmitting/receiving apparatus and method is provided, which is implemented using space-time trellis codes (STTC) constructed from a Pseudo Noise (PN) sequence set in a Direct Sequence (DS) CDMA system. The transmitter comprises a PN sequence generator, a space-time encoder, first and second modulators, and first and second multiple transmit antennas. The space-time encoder selects two of the multiple PN sequences to construct STTC, and space-time encodes data from a data source according to the STTC to output an Wary data symbol. The two modulators modulate the space-time encoded data according to the STTC. The two multiple transmit antennas wirelessly transmit outputs of the two modulators, respectively. By applying a method using space-time coding in a DS CDMA system including multiple transmit antennas, it is possible to achieve both diversity and additional coding gain and also to reduce multiple user interference by increasing the PN sequence length.
摘要翻译：提供了一种分集发送/接收装置和方法，其使用由在直接序列（DS）CDMA系统中设置的伪噪声（PN）序列构成的空时网格码（STTC）来实现。发射机包括PN序列发生器，时空编码器，第一和第二调制器以及第一和第二多个发射天线。空时编码器选择多个PN序列中的两个构造STTC，并且根据STTC对来自数据源的数据进行空时编码以输出谨慎数据符号。两个调制器根据STTC调制空间编码数据。两个多个发射天线分别无线地传输两个调制器的输出。通过在包括多个发射天线的DS CDMA系统中应用使用空时编码的方法，可以实现分集和附加编码增益两者，并且还可以通过增加PN序列长度来减少多个用户干扰。

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