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公开(公告)号：US08817897B2
公开(公告)日：2014-08-26
申请号：US12889131
申请日：2010-09-23
申请人： Arak Sutivong , Aveneesh Agrawal
发明人： Arak Sutivong , Aveneesh Agrawal
CPC分类号： H04L5/0021 , H04B1/692 , H04B1/713 , H04J13/18
摘要： Techniques are provided to support multi-carrier code division multiple access (MC-CDMA) in an orthogonal uplink of a wireless communication system. A method of wireless multi-carrier communications comprises dividing sub-carriers on an uplink into non-overlapping groups, allocating a time-frequency block including a hopping duration and a non-overlapped group, respectively, assigning a different set of orthogonal codes to each user, spreading data (or pilot) symbols of each user over the allocated time-frequency block, wherein the data (or pilot) symbols of each user are spread using the different set of orthogonal codes assigned to each user, mapping each data (or pilot) symbol to a modulation symbol in the time-frequency block, generating an orthogonal waveform based on the mapped symbols, and transmitting the orthogonal waveform.
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公开(公告)号：US20120087336A1
公开(公告)日：2012-04-12
申请号：US13327946
申请日：2011-12-16
申请人： Arak Sutivong , Aveneesh Agrawal
发明人： Arak Sutivong , Aveneesh Agrawal
CPC分类号： H04L5/0021 , H04B1/692 , H04B1/713 , H04J13/18
摘要： Techniques are provided to support multi-carrier code division multiple access (MC-CDMA) in an orthogonal uplink of a wireless communication system. A method of wireless multi-carrier communications comprises dividing sub-carriers on an uplink into non-overlapping groups, allocating a time-frequency block including a hopping duration and a non-overlapped group, respectively, assigning a different set of orthogonal codes to each user, spreading data (or pilot) symbols of each user over the allocated time-frequency block, wherein the data (or pilot) symbols of each user are spread using the different set of orthogonal codes assigned to each user, mapping each data (or pilot) symbol to a modulation symbol in the time-frequency block, generating an orthogonal waveform based on the mapped symbols, and transmitting the orthogonal waveform.
摘要翻译： 提供技术来支持无线通信系统的正交上行链路中的多载波码分多址（MC-CDMA）。 一种无线多载波通信的方法，包括将上行链路上的子载波划分为非重叠组，分别分配包括跳频持续时间和非重叠组的时间块，将不同的正交码组分配给每个 用户，在所分配的时间频率块上扩展每个用户的数据（或导频）符号，其中每个用户的数据（或导频）符号使用分配给每个用户的不同的正交码集进行扩展，映射每个数据（或 导频）符号到时间 - 频率块中的调制符号，基于映射符号生成正交波形，并发送正交波形。
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