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. 发明申请

US20160112089A9 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING-CODE DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
标题翻译：正交频分多路复用代码多路访问系统
公开(公告)号：US20160112089A9
公开(公告)日：2016-04-21
申请号：US14197440
申请日：2014-03-05
申请人： Intel Corporation
发明人： Guodong ZHANG , Yingming TSAI , Kyle Jung-Lin Pan
IPC分类号： H04B1/711
CPC分类号： H04B1/711 , H04L5/026 , H04L2025/03414
摘要： An orthogonal frequency division multiplexing (OFDM)-code division multiple access (CDMA) system is disclosed. The system includes a transmitter and a receiver. At the transmitter, a spreading and subcarrier mapping unit spreads an input data symbol with a complex quadratic sequence code to generate a plurality of chips and maps each chip to one of a plurality of subcarriers. An inverse discrete Fourier transform is performed on the chips mapped to the subcarriers and a cyclic prefix (CP) is inserted to an OFDM frame. A parallel-to-serial converter converts the time-domain data into a serial data stream for transmission. At the receiver, a serial-to-parallel converter converts received data into multiple received data streams and the CP is removed from the received data. A discrete Fourier transform is performed on the received data streams and equalization is performed. A despreader despreads an output of the equalizer to recover the transmitted data.
摘要翻译：公开了一种正交频分复用（OFDM）码分多址（CDMA）系统。该系统包括发射机和接收机。在发射机处，扩展和副载波映射单元利用复数二次序列码扩展输入数据符号，以产生多个码片，并将每个码片映射到多个副载波中的一个。对映射到子载波的芯片执行逆离散傅立叶变换，并且将循环前缀（CP）插入到OFDM帧中。并行到串行转换器将时域数据转换为串行数据流以进行传输。在接收机处，串并转换器将接收的数据转换成多个接收的数据流，并从接收的数据中移除CP。对接收的数据流执行离散付里叶变换，并进行均衡。去扩展器对均衡器的输出进行解扩以恢复传输的数据。

2. 发明授权

US10382172B2 Hybrid orthogonal frequency division multiple access system and method 有权
公开(公告)号：US10382172B2
公开(公告)日：2019-08-13
申请号：US14791113
申请日：2015-07-02
申请人： Intel Corporation
发明人： Yingming Tsai , Guodong Zhang , Kyle Jung-Lin Pan
IPC分类号： H04L5/00 , H04L27/26
摘要： A hybrid orthogonal frequency division multiple access (OFDMA) system including a transmitter and a receiver is disclosed. The transmitter includes a first spread OFDMA subassembly, a first non-spread OFDMA subassembly and a first common subassembly. The first spread OFDMA subassembly spreads input data and maps the spread data to a first group of subcarriers. The first non-spread OFDMA subassembly maps input data to a second group of subcarriers. The first common subassembly transmits the input data mapped to the first and second group of subcarriers using OFDMA. The receiver includes a second spread OFDMA subassembly, a second non-spread OFDMA subassembly and a second common subassembly. The second common subassembly processes received data to recover data mapped to the subcarriers using OFDMA. The second spread OFDMA subassembly recovers the first input data by separating user data in a code domain and the second non-spread OFDMA subassembly recovers the second input data.

3. 发明申请

US20150326357A1 HYBRID ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM AND METHOD 审中-公开
标题翻译：混合正交频分多址访问系统及方法
公开(公告)号：US20150326357A1
公开(公告)日：2015-11-12
申请号：US14791113
申请日：2015-07-02
申请人： Intel Corporation
发明人： Yingming Tsai , Guodong Zhang , Kyle Jung-Lin Pan
IPC分类号： H04L5/00
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0037 , H04L5/0044 , H04L5/005 , H04L5/0073 , H04L27/2601 , H04L27/2647
摘要： A hybrid orthogonal frequency division multiple access (OFDMA) system including a transmitter and a receiver is disclosed. The transmitter includes a first spread OFDMA subassembly, a first non-spread OFDMA subassembly and a first common subassembly. The first spread OFDMA subassembly spreads input data and maps the spread data to a first group of subcarriers. The first non-spread OFDMA subassembly maps input data to a second group of subcarriers. The first common subassembly transmits the input data mapped to the first and second group of subcarriers using OFDMA. The receiver includes a second spread OFDMA subassembly, a second non-spread OFDMA subassembly and a second common subassembly. The second common subassembly processes received data to recover data mapped to the subcarriers using OFDMA. The second spread OFDMA subassembly recovers the first input data by separating user data in a code domain and the second non-spread OFDMA subassembly recovers the second input data.
摘要翻译：公开了一种包括发射机和接收机的混合正交频分多址（OFDMA）系统。发射机包括第一扩展OFDMA子组件，第一非扩展OFDMA子组件和第一公共子组件。第一扩频OFDMA子组件扩展输入数据并将扩展数据映射到第一组子载波。第一非扩展OFDMA子组件将输入数据映射到第二组副载波。第一公共子组件使用OFDMA发送映射到第一和第二组子载波的输入数据。接收机包括第二扩展OFDMA子组件，第二非扩展OFDMA子组件和第二公共子组件。第二个公共子组件使用OFDMA来处理接收的数据以恢复映射到子载波的数据。第二扩频OFDMA子组件通过分离码域中的用户数据并且第二非扩展OFDMA子组件恢复第二输入数据来恢复第一输入数据。

4. 发明授权

US09077488B2 Hybrid orthogonal frequency division multiple access WTRU and method 有权
标题翻译：混合正交频分多址WTRU和方法
公开(公告)号：US09077488B2
公开(公告)日：2015-07-07
申请号：US14164670
申请日：2014-01-27
申请人： Intel Corporation
发明人： Yingming Tsai , Guodong Zhang , Kyle Jung-Lin Pan
IPC分类号： H04K1/10 , H04L5/00 , H04L27/26
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0037 , H04L5/0044 , H04L5/005 , H04L5/0073 , H04L27/2601 , H04L27/2647
摘要： A hybrid orthogonal frequency division multiple access (OFDMA) wireless transmit/receive unit (WTRU) and method are disclosed. A WTRU includes a transmitter and a receiver. The receiver processes received data to recover data mapped to the subcarriers using OFDMA. The receiver recovers first input data by separating user data from multi-user spread data and recovers second input data from non-spread data.
摘要翻译：公开了一种混合正交频分多址（OFDMA）无线发射/接收单元（WTRU）和方法。 WTRU包括发射机和接收机。接收机处理接收到的数据以恢复使用OFDMA映射到子载波的数据。接收机通过从多用户扩展数据分离用户数据并从非扩展数据中恢复第二输入数据来恢复第一输入数据。

5. 发明授权

US09614578B2 Orthogonal frequency division multiplexing-code division multiple access system 有权
公开(公告)号：US09614578B2
公开(公告)日：2017-04-04
申请号：US14197440
申请日：2014-03-05
申请人： Intel Corporation
发明人： Guodong Zhang , Yingming Tsai , Kyle Jung-Lin Pan
IPC分类号： H04B1/707 , H04B1/711 , H04L5/02 , H04L25/03
CPC分类号： H04B1/711 , H04L5/026 , H04L2025/03414
摘要： An orthogonal frequency division multiplexing (OFDM)-code division multiple access (CDMA) system is disclosed. The system includes a transmitter and a receiver. At the transmitter, a spreading and subcarrier mapping unit spreads an input data symbol with a complex quadratic sequence code to generate a plurality of chips and maps each chip to one of a plurality of subcarriers. An inverse discrete Fourier transform is performed on the chips mapped to the subcarriers and a cyclic prefix (CP) is inserted to an OFDM frame. A parallel-to-serial converter converts the time-domain data into a serial data stream for transmission. At the receiver, a serial-to-parallel converter converts received data into multiple received data streams and the CP is removed from the received data. A discrete Fourier transform is performed on the received data streams and equalization is performed. A despreader despreads an output of the equalizer to recover the transmitted data.

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