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

US07949060B2 Method and apparatus for utilizing channel state information in a wireless communication system 有权
标题翻译：在无线通信系统中利用信道状态信息的方法和装置
公开(公告)号：US07949060B2
公开(公告)日：2011-05-24
申请号：US12554608
申请日：2009-09-04
申请人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
发明人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0854 , H04B7/0891 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L5/0023 , H04L5/0044 , H04L5/006 , H04L5/0091 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals are received via a number of receive antennas, with the received signal from each receive antenna comprising a combination of one or more signals transmitted from the transmitter unit. The received signals are processed to derive channel state information (CSI) indicative of characteristics of a number of transmission channels used for data transmission. The CSI is transmitted back to the transmitter unit. At the transmitter unit, the CSI from the receiver unit is received and data for transmission to the receiver unit is processed based on the received CSI.
摘要翻译：用于在多输入多输出（MIMO）通信系统中将数据从发射机单元传输到接收机单元的技术。在一种方法中，在接收机单元处，经由多个接收天线接收多个信号，其中来自每个接收天线的接收信号包括从发射机单元发送的一个或多个信号的组合。处理所接收的信号以导出指示用于数据传输的多个传输信道的特性的信道状态信息（CSI）。 CSI被发回到发射机单元。在发射机单元处，接收来自接收机单元的CSI，并根据所接收到的CSI处理用于传输到接收机单元的数据。

2. 发明申请

US20100246642A1 MULTI-ACCESS HYBRID OFDM-CDMA SYSTEM 有权
标题翻译：多访问混合OFDM-CDMA系统
公开(公告)号：US20100246642A1
公开(公告)日：2010-09-30
申请号：US12813461
申请日：2010-06-10
申请人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
发明人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
IPC分类号： H04B1/707
CPC分类号： H04W52/12 , H04B1/692 , H04L5/0021 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L27/0008 , H04L27/2607 , H04L27/2613 , H04L27/2647 , H04L27/2655 , H04W52/286
摘要： In one aspect of a multiple-access OFDM-CDMA system, the data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.
摘要翻译：在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展码分配给用户，并且发送功率可以被分配给用户）。可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

3. 发明授权

US07764594B2 Multiple-access hybrid OFDM-CDMA system 有权
标题翻译：多址混合OFDM-CDMA系统
公开(公告)号：US07764594B2
公开(公告)日：2010-07-27
申请号：US11494126
申请日：2006-07-26
申请人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
发明人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
IPC分类号： H04J11/00 , H04B7/216
CPC分类号： H04W52/12 , H04B1/692 , H04L5/0021 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L27/0008 , H04L27/2607 , H04L27/2613 , H04L27/2647 , H04L27/2655 , H04W52/286
摘要： In one aspect of a multiple-access OFDM-CDMA system, the data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.
摘要翻译：在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展码分配给用户，并且发送功率可以被分配给用户）。可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

4. 发明授权

US07411929B2 Method and apparatus for utilizing channel state information in a wireless communication system 有权
标题翻译：在无线通信系统中利用信道状态信息的方法和装置
公开(公告)号：US07411929B2
公开(公告)日：2008-08-12
申请号：US10903066
申请日：2004-07-30
申请人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
发明人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
IPC分类号： H04L27/00
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0854 , H04B7/0891 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L5/0023 , H04L5/0044 , H04L5/006 , H04L5/0091 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals are received via a number of receive antennas, with the received signal from each receive antenna comprising a combination of one or more signals transmitted from the transmitter unit. The received signals are processed to derive channel state information (CSI) indicative of characteristics of a number of transmission channels used for data transmission. The CSI is transmitted back to the transmitter unit. At the transmitter unit, the CSI from the receiver unit is received and data for transmission to the receiver unit is processed based on the received CSI.
摘要翻译：用于在多输入多输出（MIMO）通信系统中将数据从发射机单元传输到接收机单元的技术。在一种方法中，在接收机单元处，经由多个接收天线接收多个信号，其中来自每个接收天线的接收信号包括从发射机单元发送的一个或多个信号的组合。处理所接收的信号以导出指示用于数据传输的多个传输信道的特性的信道状态信息（CSI）。 CSI被发回到发射机单元。在发射机单元处，接收来自接收机单元的CSI，并根据所接收到的CSI处理用于传输到接收机单元的数据。

5. 发明授权

US06771706B2 Method and apparatus for utilizing channel state information in a wireless communication system 有权
标题翻译：在无线通信系统中利用信道状态信息的方法和装置
公开(公告)号：US06771706B2
公开(公告)日：2004-08-03
申请号：US09816481
申请日：2001-03-23
申请人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
发明人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
IPC分类号： H04B702
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0854 , H04B7/0891 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L5/0023 , H04L5/0044 , H04L5/006 , H04L5/0091 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals are received via a number of receive antennas, with the received signal from each receive antenna comprising a combination of one or more signals transmitted from the transmitter unit. The received signals are processed to derive channel state information (CSI) indicative of characteristics of a number of transmission channels used for data transmission. The CSI is transmitted back to the transmitter unit. At the transmitter unit, the CSI from the receiver unit is received and data for transmission to the receiver unit is processed based on the received CSI.
摘要翻译：用于在多输入多输出（MIMO）通信系统中将数据从发射机单元传输到接收机单元的技术。在一种方法中，在接收机单元处，经由多个接收天线接收多个信号，其中来自每个接收天线的接收信号包括从发射机单元发送的一个或多个信号的组合。处理所接收的信号以导出指示用于数据传输的多个传输信道的特性的信道状态信息（CSI）。 CSI被发回到发射机单元。在发射机单元处，接收来自接收机单元的CSI，并根据所接收到的CSI处理用于传输到接收机单元的数据。

6. 发明授权

US07164649B2 Adaptive rate control for OFDM communication system 有权
标题翻译： OFDM通信系统的自适应速率控制
公开(公告)号：US07164649B2
公开(公告)日：2007-01-16
申请号：US10001178
申请日：2001-11-02
申请人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
发明人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
IPC分类号： H04J11/00 , H04L1/00
CPC分类号： H04L1/0015 , H04L1/0002 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , Y02D50/10
摘要： Techniques to adaptively control the rate of a data transmission in a wireless (e.g., OFDM) communication system. In an aspect, various types of metrics may be derived and used to select the proper rate for the data transmission. Some types of metrics relate to different characteristics of the communication channel, such as SNR, frequency selectivity, time selectivity, and so on. One type of metric relates to the performance of the data transmission. In another aspect, the various types of metrics may be used in different manners to adaptively control the rate. Some metrics may be used for open-loop control of the rate, other metrics may be used for closed-loop control, and some may be used for both. For example, the channel metrics may be used to determine or select the rate, and the performance metrics may be used to determine whether or not to adjust the rate.
摘要翻译：技术来自适应地控制无线（例如，OFDM）通信系统中的数据传输速率。在一方面，可以导出各种类型的度量，并且用于选择数据传输的适当速率。一些类型的度量涉及通信信道的不同特性，例如SNR，频率选择性，时间选择性等。一种类型的度量涉及数据传输的性能。在另一方面，可以以不同的方式使用各种类型的度量来自适应地控制速率。某些度量可用于速率的开环控制，其他度量也可用于闭环控制，一些可用于两者。例如，可以使用信道度量来确定或选择速率，并且可以使用性能度量来确定是否调整速率。

7. 发明授权

US08948705B2 Multiple-access hybrid OFDM-CDMA system 有权
标题翻译：多址混合OFDM-CDMA系统
公开(公告)号：US08948705B2
公开(公告)日：2015-02-03
申请号：US13227946
申请日：2011-09-08
申请人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
发明人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
IPC分类号： H04B1/00 , H04B7/00 , H04W52/12 , H04B1/692 , H04L5/00 , H04L5/02 , H04L27/00 , H04L27/26 , H04W52/28 , H04L25/02
CPC分类号： H04W52/12 , H04B1/692 , H04L5/0021 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L27/0008 , H04L27/2607 , H04L27/2613 , H04L27/2647 , H04L27/2655 , H04W52/286
摘要： In one aspect of a multiple-access OFDM-CDMA system, data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.
摘要翻译：在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展码分配给用户，并且发送功率可以被分配给用户）。可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

8. 发明申请

US20110317671A1 MULTIPLE-ACCESS HYBRID OFDM-CDMA SYSTEM 有权
标题翻译：多通道混合OFDM-CDMA系统
公开(公告)号：US20110317671A1
公开(公告)日：2011-12-29
申请号：US13227946
申请日：2011-09-08
申请人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
发明人： Jay R. Walton , John W. Ketchum , Steven J. Howard , Mark Wallace
IPC分类号： H04W92/00 , H04J3/00 , H04B1/707
CPC分类号： H04W52/12 , H04B1/692 , H04L5/0021 , H04L5/0048 , H04L5/026 , H04L25/0228 , H04L27/0008 , H04L27/2607 , H04L27/2613 , H04L27/2647 , H04L27/2655 , H04W52/286
摘要： In one aspect of a multiple-access OFDM-CDMA system, data spreading is performed in the frequency domain by spreading each data stream with a respective spreading code selected from a set of available spreading codes. To support multiple access, system resources may be allocated and de-allocated to users (e.g., spreading codes may be assigned to users as needed, and transmit power may be allocated to users). Variable rate data for each user may be supported via a combination of spreading adjustment and transmit power scaling. Interference control techniques are also provided to improve system performance via power control of the downlink and/or uplink transmissions to achieve the desired level of performance while minimizing interference. A pilot may be transmitted by each transmitter unit to assist the receiver units perform acquisition, timing synchronization, carrier recovery, handoff, channel estimation, coherent data demodulation, and so on.
摘要翻译：在多址OFDM-CDMA系统的一个方面，通过用从一组可用的扩展码中选择的相应的扩展码扩展每个数据流，在频域中执行数据扩展。为了支持多次访问，可以向用户分配和分配系统资源（例如，可以根据需要将扩展码分配给用户，并且发送功率可以被分配给用户）。可以通过扩展调整和发射功率缩放的组合来支持每个用户的可变速率数据。还提供干扰控制技术以通过下行链路和/或上行链路传输的功率控制来提高系统性能，以实现期望的性能水平同时最小化干扰。每个发射机单元可以发送导频，以帮助接收机单元执行采集，定时同步，载波恢复，切换，信道估计，相干数据解调等。

9. 发明授权

US06785341B2 Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information 有权
标题翻译：利用信道状态信息在多输入多输出（MIMO）通信系统中处理数据的方法和装置
公开(公告)号：US06785341B2
公开(公告)日：2004-08-31
申请号：US09854235
申请日：2001-05-11
申请人： Jay R. Walton , Mark Wallace , John W. Ketchum , Steven J. Howard
发明人： Jay R. Walton , Mark Wallace , John W. Ketchum , Steven J. Howard
IPC分类号： H04B702
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0689 , H04B7/0697 , H04B7/0854 , H04B7/10 , H04B7/12 , H04L1/0009 , H04L1/0026 , H04L1/0048 , H04L1/005 , H04L1/0071
摘要： Techniques to “successively” process received signals at a receiver unit in a MIMO system to recover transmitted data, and to “adaptively” process data at a transmitter unit based on channel state information available for the MIMO channel. A successive cancellation receiver processing technique is used to process the received signals and performs a number of iterations to provide decoded data streams. For each iteration, input (e.g., received) signals for the iteration are processed to provide one or more symbol streams. One of the symbol streams is selected and processed to provide a decoded data stream. The interference due to the decoded data stream is approximately removed (i.e., canceled) from the input signals provided to the next iteration. The channel characteristics are estimated and reported back to the transmitter system and used to adjust (i.e., adapt) the processing (e.g., coding, modulation, and so on) of data prior to transmission.
摘要翻译：在MIMO系统的接收机单元处“接收”处理接收信号以恢复所发送的数据，并且基于可用于MIMO信道的信道状态信息“自适应地”处理发射机单元处的数据的技术。使用连续的取消接收器处理技术来处理所接收的信号并执行多次迭代以提供解码的数据流。对于每次迭代，处理用于迭代的输入（例如，接收的）信号以提供一个或多个符号流。选择并处理符号流中的一个以提供解码的数据流。从解码的数据流引起的干扰从提供给下一次迭代的输入信号中大致去除（即，取消）。信道特性被估计并报告给发射机系统，并用于在传输之前调整（即，适应）数据的处理（例如，编码，调制等）。

10. 发明申请

US20090323851A1 METHOD AND APPARATUS FOR UTILIZING CHANNEL STATE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中使用信道状态信息的方法和装置
公开(公告)号：US20090323851A1
公开(公告)日：2009-12-31
申请号：US12554608
申请日：2009-09-04
申请人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
发明人： Fuyun Ling , Jay R. Walton , Steven J. Howard , Mark Wallace , John W. Ketchum
IPC分类号： H04B7/02 , H04B15/00 , H04L1/02
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0854 , H04B7/0891 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L5/0023 , H04L5/0044 , H04L5/006 , H04L5/0091 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals are received via a number of receive antennas, with the received signal from each receive antenna comprising a combination of one or more signals transmitted from the transmitter unit. The received signals are processed to derive channel state information (CSI) indicative of characteristics of a number of transmission channels used for data transmission. The CSI is transmitted back to the transmitter unit. At the transmitter unit, the CSI from the receiver unit is received and data for transmission to the receiver unit is processed based on the received CSI.
摘要翻译：用于在多输入多输出（MIMO）通信系统中将数据从发射机单元传输到接收机单元的技术。在一种方法中，在接收机单元处，经由多个接收天线接收多个信号，其中来自每个接收天线的接收信号包括从发射机单元发送的一个或多个信号的组合。处理所接收的信号以导出指示用于数据传输的多个传输信道的特性的信道状态信息（CSI）。 CSI被发回到发射机单元。在发射机单元处，接收来自接收机单元的CSI，并根据所接收到的CSI处理用于传输到接收机单元的数据。

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