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1. 发明授权

US08503548B2 Turbo channel estimation for OFDM systems 有权
标题翻译： OFDM系统的Turbo信道估计
公开(公告)号：US08503548B2
公开(公告)日：2013-08-06
申请号：US12640234
申请日：2009-12-17
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method preferably applies to a communication system using the OFDM standard. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed, for example, using DSP or ASIC and imbedded into the wireless system design software for accomplishing the steps set forth according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法优选地应用于使用OFDM标准的通信系统。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号和导频符号组重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有例如使用DSP或ASIC编程并且嵌入无线系统设计软件中的估计器的无线接收器，用于完成根据该方法阐述的步骤。

2. 发明申请

US20130022161A1 TURBO CHANNEL ESTIMATION FOR OFDM SYSTEMS 有权
标题翻译：用于OFDM系统的涡轮信道估计
公开(公告)号：US20130022161A1
公开(公告)日：2013-01-24
申请号：US13557736
申请日：2012-07-25
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04B1/10
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。所述方法包括：接收n个发送符号的块，所述符号包括导频符号和d个数据符号，使用导频符号估计信道以创建信道估计，从d个接收符号中选择一组m个最强符号，使用信道估计来创建一组m个补偿符号的最强符号，使用m个补偿符号组和导频符号重新估计信道; 并且（1）重复选择一组最强符号的步骤，补偿m个最强符号的组并重新估计该信道，或者（2）使用最新的信道估计来补偿该块内的所有符号。该系统包括具有根据该方法编程的估计器的无线接收器。

3. 发明申请

US20110222505A1 METHOD AND SYSTEM FOR MULTI-CARRIER PACKET COMMUNICATION WITH REDUCED OVERHEAD 有权
标题翻译：用于多载波分组通信的方法和系统，具有减少的覆盖
公开(公告)号：US20110222505A1
公开(公告)日：2011-09-15
申请号：US13115055
申请日：2011-05-24
申请人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
发明人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
IPC分类号： H04W72/04
CPC分类号： H04L5/0053 , H04J11/005 , H04L1/0003 , H04L1/0009 , H04L1/0029 , H04L5/0007 , H04L5/0044 , H04L5/006 , H04L5/0094 , H04L27/2601 , H04W52/146 , H04W72/04 , H04W72/048
摘要： A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.
摘要翻译：公开了一种用于最小化利用时频资源的多载波无线通信网络中的控制开销的方法和系统。在一些实施例中，时间 - 频率资源中的一个或多个区域被指定用于特定应用，例如专用于IP语音（VoIP）应用的区域。通过将类似类型的应用分组在区域内，可以实现将分组流映射到时间 - 频率资源的一部分所需的比特数量的减少。在一些实施例中，可以选择与分组流相关联的模块化编码方案，其进一步减少必要控制信息的量。在一些实施例中，分组可以根据应用类型，QoS参数和其他属性被分类以进行传输。在一些实施例中，可以构造改进的控制消息以便于控制过程并最小化相关的开销。

4. 发明授权

US07656958B2 Turbo channel estimation for OFDM systems 有权
标题翻译： OFDM系统的Turbo信道估计
公开(公告)号：US07656958B2
公开(公告)日：2010-02-02
申请号：US12255404
申请日：2008-10-21
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method preferably applies to a communication system using the OFDM standard. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed, for example, using DSP or ASIC and imbedded into the wireless system design software for accomplishing the steps set forth according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法优选地应用于使用OFDM标准的通信系统。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号和导频符号组重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有例如使用DSP或ASIC编程并且嵌入无线系统设计软件中的估计器的无线接收器，用于完成根据该方法阐述的步骤。

5. 发明授权

US07440507B1 Turbo channel estimation for OFDM systems 有权
标题翻译： OFDM系统的Turbo信道估计
公开(公告)号：US07440507B1
公开(公告)日：2008-10-21
申请号：US11190373
申请日：2005-07-26
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method preferably applies to a communication system using the OFDM standard. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed, for example, using DSP or ASIC and imbedded into the wireless system design software for accomplishing the steps set forth according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法优选地应用于使用OFDM标准的通信系统。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号组和导频符号重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有例如使用DSP或ASIC编程并且嵌入无线系统设计软件中的估计器的无线接收器，用于完成根据该方法阐述的步骤。

6. 发明授权

US08693430B2 Method and system for multi-carrier packet communication with reduced overhead 有权
公开(公告)号：US08693430B2
公开(公告)日：2014-04-08
申请号：US13115055
申请日：2011-05-24
申请人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
发明人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
IPC分类号： H04W4/00
CPC分类号： H04L5/0053 , H04J11/005 , H04L1/0003 , H04L1/0009 , H04L1/0029 , H04L5/0007 , H04L5/0044 , H04L5/006 , H04L5/0094 , H04L27/2601 , H04W52/146 , H04W72/04 , H04W72/048
摘要： A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

7. 发明授权

US08681887B2 Turbo channel estimation for OFDM systems 有权
标题翻译： OFDM系统的Turbo信道估计
公开(公告)号：US08681887B2
公开(公告)日：2014-03-25
申请号：US13557736
申请日：2012-07-25
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号和导频符号组重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有根据该方法编程的估计器的无线接收器。

8. 发明授权

US07948944B2 Method and system for multi-carrier packet communication with reduced overhead 有权
标题翻译：减少开销的多载波分组通信的方法和系统
公开(公告)号：US07948944B2
公开(公告)日：2011-05-24
申请号：US11908257
申请日：2006-09-28
申请人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
发明人： Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
IPC分类号： H04W4/00
CPC分类号： H04L5/0007 , H04L5/0046 , H04L5/006 , H04L5/0064 , H04L5/0087 , H04L5/0091
摘要： A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.
摘要翻译：公开了一种用于最小化利用时频资源的多载波无线通信网络中的控制开销的方法和系统。在一些实施例中，时间 - 频率资源中的一个或多个区域被指定用于特定应用，例如专用于IP语音（VoIP）应用的区域。通过将类似类型的应用分组在区域内，可以实现将分组流映射到时间 - 频率资源的一部分所需的比特数量的减少。在一些实施例中，可以选择与分组流相关联的模块化编码方案，其进一步减少必要控制信息的量。在一些实施例中，分组可以根据应用类型，QoS参数和其他属性被分类以进行传输。在一些实施例中，可以构造改进的控制消息以便于控制过程并最小化相关的开销。

9. 发明申请

US20100135425A1 TURBO CHANNEL ESTIMATION FOR OFDM SYSTEMS 有权
标题翻译：用于OFDM系统的涡轮信道估计
公开(公告)号：US20100135425A1
公开(公告)日：2010-06-03
申请号：US12640234
申请日：2009-12-17
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04B1/10 , H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method preferably applies to a communication system using the OFDM standard. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed, for example, using DSP or ASIC and imbedded into the wireless system design software for accomplishing the steps set forth according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法优选地应用于使用OFDM标准的通信系统。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号和导频符号组重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有例如使用DSP或ASIC编程并且嵌入无线系统设计软件中的估计器的无线接收器，用于完成根据该方法阐述的步骤。

10. 发明授权

US06940914B1 Turbo channel estimation for OFDM systems 有权
标题翻译： OFDM系统的Turbo信道估计
公开(公告)号：US06940914B1
公开(公告)日：2005-09-06
申请号：US09878555
申请日：2001-06-11
申请人： Titus Lo , Ruifeng Wang
发明人： Titus Lo , Ruifeng Wang
IPC分类号： H04L25/02 , H04L27/26 , H04L27/28
CPC分类号： H04L27/2662 , H04L1/0054 , H04L25/0204 , H04L25/0236 , H04L27/261 , H04L27/2647
摘要： A system and method for estimating a channel in a wireless receiver is disclosed. The method preferably applies to a communication system using the OFDM standard. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed, for example, using DSP or ASIC and imbedded into the wireless system design software for accomplishing the steps set forth according to the method.
摘要翻译：公开了一种用于估计无线接收机中的信道的系统和方法。该方法优选地应用于使用OFDM标准的通信系统。该方法包括：接收“n”个发送符号的块，该符号包括导频符号和“d”个数据符号，使用导频符号估计信道以创建信道估计，从“ d“个接收到的符号，使用信道估计补偿”m“个最强符号以创建一组”m“个补偿符号，使用”m“个补偿符号和导频符号组重新估计信道; 并且（1）重复选择一组“m”个最强符号的步骤，补偿“m”个最强符号组并重新估计该信道，或者（2）使用最新信道估计来补偿该“ 块。该系统包括具有例如使用DSP或ASIC编程并且嵌入无线系统设计软件中的估计器的无线接收器，用于完成根据该方法阐述的步骤。

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