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11. 发明授权

US06249253B1 Mobile radiotelephone determination using time of arrival of GPS and pilot signals 有权
标题翻译：使用GPS和导频信号到达时间的移动无线电话确定
公开(公告)号：US06249253B1
公开(公告)日：2001-06-19
申请号：US09290623
申请日：1999-04-13
申请人： Jorgen S. Nielsen , Leo Strawczynski
发明人： Jorgen S. Nielsen , Leo Strawczynski
IPC分类号： G01S502
CPC分类号： G01S19/46 , G01S19/235 , G01S19/41 , H04B7/18554 , H04B7/216
摘要： The time of arrival of a global positioning system signal and the time of arrival of a code division multiple access pilot signal, from a base station, are estimated at a mobile radiotelephone. Both estimates are performed relative to a local clock in the radiotelephone. These signals are calibrated for the time delay produced by the transmitter at the base station and the time delay produced by the receiver in the radiotelephone.
摘要翻译：在移动无线电话机处估计来自基站的全球定位系统信号的到达时间和码分多址导频信号的到达时间。两个估计都是相对于无线电话中本地时钟执行的。这些信号是由发射机在基站产生的时间延迟以及接收机在无线电话中产生的时间延迟进行校准的。

12. 发明授权

US6148422A Telecommunication network utilizing an error control protocol 失效
标题翻译：使用错误控制协议的电信网络
公开(公告)号：US6148422A
公开(公告)日：2000-11-14
申请号：US946312
申请日：1997-10-07
申请人： Leo Strawczynski , Bill Gage , Rafi Rabipour
发明人： Leo Strawczynski , Bill Gage , Rafi Rabipour
IPC分类号： H04L1/00 , H04L1/24
CPC分类号： H04L1/0057 , H04L1/24
摘要： The present invention provides a system and a method for improving the voice quality of wireless-to-wireless calls. More specifically, the invention provides a method and an apparatus to add supplemental information for better error detection and correction of data packets. This feature allows the identification of the telecommunication link causing errors in the data packets and optimizes the use of the reconstructed data packets.
摘要翻译：本发明提供一种用于提高无线到无线呼叫的语音质量的系统和方法。更具体地，本发明提供了一种添加补充信息以更好地进行数据分组的错误检测和校正的方法和装置。该特征允许识别导致数据分组中的错误的电信链路，并优化重构数据分组的使用。

13. 发明授权

US5239676A Intra-cell call hand-over in radio communication systems with dynamic channel allocation 失效
标题翻译：具有动态通道分配的无线电通信系统中的小区呼叫
公开(公告)号：US5239676A
公开(公告)日：1993-08-24
申请号：US710866
申请日：1991-06-06
申请人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
发明人： Leo Strawczynski , Howard M. Sandler , Gregory L. Plett , David G. Steer
IPC分类号： H04W36/06 , H04W36/30
CPC分类号： H04W36/06 , H04W24/00 , H04W24/10 , H04W36/08 , H04W36/30 , H04W48/08 , H04W72/02 , H04W72/0413 , H04W72/082
摘要： The intra-cell call hand-over technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining a standby radio traffic channel upon which to hand over a call. Communication between the base station and subscriber terminal is carried out on an inband or associated signalling channel for the selection of the standby traffic channel. The standby radio channel is the channel, which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is comprised of those channels having little interference as measured by the base station. The call hand-over technique thereby assures that calls proceed on channels containing little interference from the viewpoints of both base station and subscriber terminal.

14. 发明授权

US08339935B2 Adaptive time diversity and spatial diversity for OFDM 有权
标题翻译： OFDM的自适应时间分集和空间分集
公开(公告)号：US08339935B2
公开(公告)日：2012-12-25
申请号：US13310651
申请日：2011-12-02
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04J11/00
CPC分类号： H04L27/2646 , H04B7/0413 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L27/2626 , H04L27/2628
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.
摘要翻译：一种适应性正交频分复用系统（OFDM），其使用多输入多输出（MIMO）来具有根据时间分集发送的OFDM信号以减少信号衰落或者根据空间分集来增加数据速率。基于阈值与三个标准中的至少一个的比较的结果，将子载波分类为空间分集发送或时间分集发送。标准包括计算频道响应矩阵的最小本征值和矩阵的对角线的最小元素以及矩阵的最大和最小本征值的比率。

15. 发明申请

US20120076228A1 Adaptive Time Diversity and Spatial Diversity for OFDM 有权
标题翻译： OFDM的自适应时间分集和空间分集
公开(公告)号：US20120076228A1
公开(公告)日：2012-03-29
申请号：US13310651
申请日：2011-12-02
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04L27/00 , H04B7/02
CPC分类号： H04L27/2646 , H04B7/0413 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L27/2626 , H04L27/2628
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.
摘要翻译：一种适应性正交频分复用系统（OFDM），其使用多输入多输出（MIMO）来具有根据时间分集发送的OFDM信号以减少信号衰落或者根据空间分集来增加数据速率。基于阈值与三个标准中的至少一个的比较的结果，将子载波分类为空间分集发送或时间分集发送。标准包括计算频道响应矩阵的最小本征值和矩阵的对角线的最小元素以及矩阵的最大和最小本征值的比率。

16. 发明申请

US20110044394A1 Adaptive time diversity and spatial diversity for OFDM 有权
标题翻译： OFDM的自适应时间分集和空间分集
公开(公告)号：US20110044394A1
公开(公告)日：2011-02-24
申请号：US12806481
申请日：2010-08-13
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04B7/02
CPC分类号： H04B7/068 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0891 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0026 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2604 , H04L27/2628 , H04L27/2646 , H04L27/2647
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.
摘要翻译：一种适应性正交频分复用系统（OFDM），其使用多输入多输出（MIMO）来具有根据时间分集发送的OFDM信号以减少信号衰落或者根据空间分集来增加数据速率。基于阈值与三个标准中的至少一个的比较的结果，将子载波分类为空间分集发送或时间分集发送。标准包括计算频道响应矩阵的最小本征值和矩阵的对角线的最小元素以及矩阵的最大和最小本征值的比率。

17. 发明申请

US20080002568A1 Adaptive time diversity and spatial diversity for OFDM 有权
公开(公告)号：US20080002568A1
公开(公告)日：2008-01-03
申请号：US11899860
申请日：2007-09-07
申请人： Shiquan Wu , Wen Tong , Leo Strawczynski
发明人： Shiquan Wu , Wen Tong , Leo Strawczynski
IPC分类号： H04J11/00
CPC分类号： H04B7/068 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0891 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0625 , H04L1/0631 , H04L1/0662 , H04L1/0675 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0026 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2604 , H04L27/2628 , H04L27/2646 , H04L27/2647
摘要： An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.

18. 发明授权

US06628641B1 Header error detection for wireless data cells 失效
标题翻译：无线数据单元的标题错误检测
公开(公告)号：US06628641B1
公开(公告)日：2003-09-30
申请号：US08997982
申请日：1997-12-24
申请人： Leo Strawczynski , Bill W. A. Gage
发明人： Leo Strawczynski , Bill W. A. Gage
IPC分类号： H04L1256
CPC分类号： H04L49/555 , H04L49/3009 , H04L2012/5607 , H04L2012/5627
摘要： An improved method and transceiver for using the method for detecting header errors includes a header processor for reconfiguring an ATM cell header by extracting the 8 bit header error check (HEC) and replacing it with an enhanced 16 or 24 bit HEC (EHEC). On the receive path, the received header is compared to the EHEC and if errors are indicated, the cell is discarded. Enhancements include FEC encoding on the entire cell during transmission, and if during reception uncorrectable errors exist using said EHEC to determine whether the error is in the header or is in the payload. If a cell with an error in its payload belongs to a group of related cells, for example an AAL5 frame, the system discontinues the transmission of the remaining cells of the frame.
摘要翻译：一种用于检测报头错误的改进方法和收发器包括一个报头处理器，用于通过提取8位报头错误检查（HEC）来重新配置ATM信元报头，并用增强的16位或24位HEC（EHEC）代替。在接收路径上，将接收到的报头与EHEC进行比较，如果指示错误，则丢弃该单元。增强包括在传输期间在整个小区上的FEC编码，并且如果在接收期间，使用所述EHEC来存在不可纠正的错误，以确定该错误是在报头中还是在有效载荷中。如果其有效载荷中具有错误的小区属于一组相关小区，例如AAL5帧，则系统中断帧的剩余小区的传输。

19. 发明授权

US06378069B1 Apparatus and methods for providing software updates to devices in a communication network 有权
标题翻译：用于向通信网络中的设备提供软件更新的装置和方法
公开(公告)号：US06378069B1
公开(公告)日：2002-04-23
申请号：US09186349
申请日：1998-11-04
申请人： Howard M. Sandler , Leo Strawczynski , José M. Duran , Bernard Thiboutot , Okan Azmak
发明人： Howard M. Sandler , Leo Strawczynski , José M. Duran , Bernard Thiboutot , Okan Azmak
IPC分类号： G06F124
CPC分类号： G06F8/65 , H04M1/72525 , H04W4/14 , H04W8/245 , H04W76/20
摘要： An apparatus for transmitting software to a subscriber device in a communication network, which includes a processor, a database coupled to the processor, and a communication device for providing software to a subscriber device. The database contains information about subscribers of a communication network. A method for transmitting software to subscriber devices in a communication network, comprising identifying a subscriber device which requires a software update, transmitting a first signal from a processor to the subscriber device, initiating a communication channel between the subscriber device and the processor, and transmitting a second signal to the subscriber device. The second signal contains software.
摘要翻译：一种用于在通信网络中向用户设备发送软件的装置，其包括处理器，耦合到所述处理器的数据库以及用于向订户设备提供软件的通信设备。数据库包含有关通信网络用户的信息。一种用于向通信网络中的订户设备发送软件的方法，包括：识别需要软件更新的订户设备，从处理器向订户设备发送第一信号，发起用户设备和处理器之间的通信信道，以及发送向用户设备发送第二信号。第二个信号包含软件。

20. 发明授权

US06373842B1 Unidirectional streaming services in wireless systems 有权
标题翻译：无线系统中的单向流服务
公开(公告)号：US06373842B1
公开(公告)日：2002-04-16
申请号：US09195400
申请日：1998-11-19
申请人： Paul Coverdale , Leo Strawczynski
发明人： Paul Coverdale , Leo Strawczynski
IPC分类号： H04L1256
CPC分类号： H04L1/1848 , H04L1/1812 , H04L1/1838 , H04W28/14 , H04W80/00
摘要： A high layer protocol organizes Unidirectional Streaming Services (USS) data into frames and said data is transmitted to the wireless user's terminal. The USS data is not delivered until a criteria is satisfied, e.g., the receive buffer is filled to an appropriate value. After the USS data is received, the receiver verifies the received frames. If an error is detected a message is sent from the wireless terminal to the server (providing the unidirectional streaming service) requesting retransmission of the corrupted frame. This is a form of ARQ protocol. If the retransmitted frame arrives prior to the time that frame needs to be delivered, the corrupted frame is replaced by the retransmitted frame. Otherwise, if the retransmitted frame is not received prior to the time that frame needs to be delivered, the corrupted frame is reconstructed. Any retransmitted frame which arrives too late is discarded. An additional benefit of the present invention is that since the frames are buffered prior to delivery, interpolation, as opposed to extrapolation, can be used to improve the reconstruction quality of the corrupted frame. This optional feature of the invention uses both the preceding and succeeding frames, which are available in the buffer, to provide a better estimate of the corrupted frame.
摘要翻译：高层协议将单向流服务（USS）数据组织成帧，所述数据被传送到无线用户的终端。在满足标准之前USS数据不被传送，例如，接收缓冲器被填充到适当的值。在接收到USS数据之后，接收机验证接收到的帧。如果检测到错误，则从无线终端向服务器（提供单向流服务）发送请求重发已损坏帧的消息。这是一种ARQ协议的形式。如果重传的帧在需要传送帧的时间之前到达，则被重新发送的帧被替换。否则，如果在需要传送帧的时间之前没有接收到重传的帧，则重建损坏的帧。任何到达太晚的重发帧被丢弃。本发明的另外的好处在于，由于帧在传送之前被缓冲，所以与外推相反的内插可以用于改善损坏的帧的重建质量。本发明的该可选特征使用在缓冲器中可用的前一帧和后续帧来提供对损坏帧的更好估计。

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