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1. 发明申请

US20050094596A1 Method and apparatus for estimating and reporting the quality of a wireless communication channel 失效
标题翻译：用于估计和报告无线通信信道质量的方法和装置
公开(公告)号：US20050094596A1
公开(公告)日：2005-05-05
申请号：US10940079
申请日：2004-09-14
申请人： Philip Pietraski , Gregory Sternberg , Rui Yang , Bin Li
发明人： Philip Pietraski , Gregory Sternberg , Rui Yang , Bin Li
IPC分类号： H04L1/00 , H04L1/20 , H04L25/02 , H04L5/12
CPC分类号： H04L1/0026 , H04L1/20 , H04L25/0202
摘要： A method and apparatus for estimating and reporting the quality of a wireless communication channel between a wireless transmit/receive unit (WTRU) and a Node-B. A modulated signal is received from the Node-B over the communication channel and a channel estimation is performed on the modulated signal to provide a channel estimate. In one embodiment, the modulated signal is demodulated based on the channel estimate to provide a demodulated signal and a signal-to-interference (SIR) estimate based on the demodulated signal is obtained. The quality of the communication channel is estimated based on at least the SIR estimate. In an alternate embodiment, a SIR estimate based on the channel estimate is obtained. The quality of the communication channel is estimated based on the SIR estimate and additional information including at least one of delay spread, transmit power and WTRU velocity information.
摘要翻译：一种用于估计和报告无线发射/接收单元（WTRU）和节点B之间的无线通信信道的质量的方法和装置。通过通信信道从节点B接收调制信号，并对调制信号执行信道估计以提供信道估计。在一个实施例中，基于信道估计来解调调制信号以提供解调信号，并且获得基于解调信号的信号干扰（SIR）估计。至少基于SIR估计来估计通信信道的质量。在替代实施例中，获得基于信道估计的SIR估计。基于SIR估计和包括延迟扩展，发射功率和WTRU速度信息中的至少一个的附加信息来估计通信信道的质量。

2. 发明申请

US20070183335A1 Method and apparatus for estimating and reporting the quality of a wireless communication channel 失效
公开(公告)号：US20070183335A1
公开(公告)日：2007-08-09
申请号：US11732904
申请日：2007-04-04
申请人： Philip Pietraski , Gregory Sternberg , Rui Yang , Bin Li
发明人： Philip Pietraski , Gregory Sternberg , Rui Yang , Bin Li
IPC分类号： H04L12/26
CPC分类号： H04L1/0026 , H04L1/20 , H04L25/0202
摘要： A method and apparatus for estimating and reporting the quality of a wireless communication channel between a wireless transmit/receive unit (WTRU) and a Node-B. A modulated signal is received from the Node-B over the communication channel and a channel estimation is performed on the modulated signal to provide a channel estimate. In one embodiment, the modulated signal is demodulated based on the channel estimate to provide a demodulated signal and a signal-to-interference (SIR) estimate based on the demodulated signal is obtained. The quality of the communication channel is estimated based on at least the SIR estimate. In an alternate embodiment, a SIR estimate based on the channel estimate is obtained. The quality of the communication channel is estimated based on the SIR estimate and additional information including at least one of delay spread, transmit power and WTRU velocity information.

3. 发明申请

US20060171451A1 Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit 失效
公开(公告)号：US20060171451A1
公开(公告)日：2006-08-03
申请号：US11265373
申请日：2005-11-02
申请人： Philip Pietraski , Mihaela Beluri , Alpaslan Demir , Jung-Lin Pan , Gregory Sternberg , Rui Yang , Bin Li
发明人： Philip Pietraski , Mihaela Beluri , Alpaslan Demir , Jung-Lin Pan , Gregory Sternberg , Rui Yang , Bin Li
IPC分类号： H03K5/159
CPC分类号： H04L25/03038 , H04B1/7097 , H04L27/0014 , H04L2025/03509 , H04L2025/03547 , H04L2025/03585 , H04L2025/03611 , H04L2025/03617 , H04L2025/03687 , H04L2027/003 , H04L2027/0038 , H04L2027/0065
摘要： An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal.

4. 发明申请

US20050053167A1 Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals 失效
标题翻译：用于估计接收信号的信号幅度，噪声功率和信噪比的方法
公开(公告)号：US20050053167A1
公开(公告)日：2005-03-10
申请号：US10750203
申请日：2003-12-31
申请人： Bin Li , Gregory Sternberg , Philip Pietraski
发明人： Bin Li , Gregory Sternberg , Philip Pietraski
IPC分类号： H04L1/20 , H04L27/38 , H04L5/12
CPC分类号： H04L27/38 , H04L1/20
摘要： An improved system and method for estimating one or more parameters, such as amplitude and signal-to-noise ratio, of a received signal, such as an M-QAM or q-ASK signal, is set forth herein. A first embodiment of the invention estimates the amplitude of an M-QAM signal based upon known or ascertainable phase information regarding a plurality of transmitted symbols. A respective set of received symbols corresponding to the plurality of transmitted symbols is recovered. Each of the plurality of received symbols is multiplied by a complex unit vector with a phase that is opposite in sign to the complex transmitted data symbol to generate a set of products. The set of products is summed, and the real part of the sum of products is then determined. The absolute values of the known transmitted symbols are summed to generate a total magnitude value. The real part of the sum of products is divided by the sum of transmitted magnitude values to generate an estimate of the amplitude of the M-QAM signal. Other embodiments of the present invention utilize second-order and fourth-order moments of received samples, a maximum likelihood searching process, or a Kurtosis estimation process to estimate amplitude, noise power, and signal-to-noise ratio of a received signal.
摘要翻译：本文阐述了用于估计接收信号（诸如M-QAM或q-ASK信号）的一个或多个参数（诸如振幅和信噪比）的改进的系统和方法。本发明的第一实施例基于关于多个发送符号的已知或可确定的相位信息估计M-QAM信号的幅度。恢复对应于多个发送符号的相应的一组接收符号。将多个接收到的符号中的每一个乘以具有与符号相反的相位的复数单位向量到复数发送的数据符号，以生成一组乘积。产品组合相加，然后确定产品总额的实际部分。已知发射符号的绝对值被相加以产生总幅值。将产品总和的实部除以发送的幅度值的和以产生M-QAM信号的幅度的估计。本发明的其它实施例利用接收样本的二阶和四阶矩，最大似然搜索处理或者一种用于估计接收信号的幅度，噪声功率和信噪比的一个峰值估计过程。

5. 发明申请

US20060126548A1 Method and apparatus for providing fast detection of a high speed shared control channel 失效
公开(公告)号：US20060126548A1
公开(公告)日：2006-06-15
申请号：US11350454
申请日：2006-02-09
申请人： Gregory Sternberg , Yingming Tsai , Philip Pietraski
发明人： Gregory Sternberg , Yingming Tsai , Philip Pietraski
IPC分类号： H04B7/00
CPC分类号： H04L1/20 , H03M13/3738 , H03M13/41 , H03M13/653 , H04L1/0054 , H04L1/0072
摘要： A method and apparatus for providing fast detection of a high speed shared control channel (HS-SCCH). The HS-SCCH carries information necessary for receiving data via a high speed downlink shared channel (HS-DSCH). The apparatus receives messages transmitted via a plurality of HS-SCCHs. The apparatus measures a channel quality for the messages received via each HS-SCCH. The apparatus performs a threshold test by comparing the channel quality with a predetermined threshold. The apparatus then selects a HS-SCCH having the best channel quality among the HS-SCCHs.

6. 发明申请

US20050100038A1 Wireless communication method and apparatus for efficiently providing channel quality information to a Node-B downlink scheduler 审中-公开
标题翻译：用于向节点B下行链路调度器高效地提供信道质量信息的无线通信方法和装置
公开(公告)号：US20050100038A1
公开(公告)日：2005-05-12
申请号：US10946028
申请日：2004-09-21
申请人： Philip Pietraski , Gregory Sternberg
发明人： Philip Pietraski , Gregory Sternberg
IPC分类号： H04J3/12 , H04L12/56 , H04W24/00 , H04W52/02 , H04W72/12 , H04W88/08
CPC分类号： H04L47/10 , H04L47/14 , H04L47/33 , H04W24/10 , H04W52/0216 , H04W52/0219 , H04W52/0245 , H04W72/1289 , H04W88/08 , Y02D70/1244 , Y02D70/25
摘要： A method and apparatus for obtaining channel quality estimates for a downlink scheduler located in a Node-B which communicates with a plurality of wireless transmit/receive units (WTRUs). The Node-B signals a scheduled WTRU, via a high speed shared control channel (HS-SCCH) carrying valid transport format resource combination (TFRC) information, indicating that a high speed downlink shared channel (HS-DSCH) transmission will be arriving. The Node-B also indicates the upcoming arrival of the HS-DSCH transmission by signaling at least one non-scheduled WTRU via a HS-SCCH carrying invalid TFRC information. The Node-B transmits the HS-DSCH transmission to the scheduled WTRU. The non-scheduled WTRU monitors a subset of the HS-DSCH transmission and, when invalid TFRC information is detected, determines a CQI without decoding HS-DSCH data. Otherwise, the results of cyclic redundancy check (CRC), always a non-acknowledgement (NACK) message, is signaled along with the CQI to the Node-B.
摘要翻译：一种用于获取位于与多个无线发射/接收单元（WTRU）通信的节点B中的下行链路调度器的信道质量估计的方法和装置。节点B通过承载有效的传输格式资源组合（TFRC）信息的高速共享控制信道（HS-SCCH）向指示高速下行链路共享信道（HS-DSCH）传输将到达的调度的WTRU发送信号。节点B还通过经由携带无效TFRC信息的HS-SCCH信令至少一个非调度WTRU来指示即将到来的HS-DSCH传输。节点B将HS-DSCH传输发送到调度的WTRU。非调度WTRU监视HS-DSCH传输的子集，并且当检测到无效TFRC信息时，确定CQI而不对HS-DSCH数据进行解码。否则，循环冗余校验（CRC）的结果始终是非确认（NACK）消息，与CQI一起被发送到节点B。

7. 发明申请

US20060093024A1 Wireless communication method and apparatus for adaptively biasing channel quality indicators to maintain a desired block error rate 失效
公开(公告)号：US20060093024A1
公开(公告)日：2006-05-04
申请号：US10981248
申请日：2004-11-04
申请人： Philip Pietraski , Gregory Sternberg , Douglas Castor
发明人： Philip Pietraski , Gregory Sternberg , Douglas Castor
IPC分类号： H04L5/16 , H04B15/00
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0021 , H04L1/1867 , H04W24/00 , H04W28/18 , H04W48/08 , H04W52/12 , H04W52/20
摘要： A method and apparatus for adaptively biasing a channel quality indicator (CQI) used for setting a configuration of communication between a transmitter and a receiver in a wireless communication system. The receiver sends a CQI and positive acknowledgement (ACK)/negative acknowledgement (NACK) messages to the transmitter. The ACK/NACK messages indicate the absence or presence of error, respectively, in a transmitted data packet. The CQI is derived from the signal-to-interference ratio (SIR) and the ACK/NACK messages. The transmitter calculates the block error rate (BLER) of the transmitted data packets based upon the ACK/NACK messages sent from the receiver. The transmitter compares the BLER of the transmitted data packets to a target BLER and biases the CQI based on the comparison in order to achieve the target BLER.

8. 发明申请

US20050180344A1 Method and apparatus for providing fast detection of a high speed shared control channel 有权
标题翻译：用于提供高速共享控制信道的快速检测的方法和装置
公开(公告)号：US20050180344A1
公开(公告)日：2005-08-18
申请号：US10903389
申请日：2004-07-30
申请人： Gregory Sternberg , Yingming Tsai , Philip Pietraski
发明人： Gregory Sternberg , Yingming Tsai , Philip Pietraski
IPC分类号： H04B7/00 , H04B17/40 , H04L1/00 , H04L1/20
CPC分类号： H04L1/20 , H03M13/3738 , H03M13/41 , H03M13/653 , H04L1/0054 , H04L1/0072
摘要： A method and apparatus for providing fast detection of a high speed shared control channel (HS-SCCH). The HS-SCCH carries information necessary for receiving data via a high speed downlink shared channel (HS-DSCH). The apparatus receives messages transmitted via a plurality of HS-SCCHs. The apparatus measures a channel quality for the messages received via each HS-SCCH. The apparatus performs a threshold test by comparing the channel quality with a predetermined threshold. The apparatus then selects a HS-SCCH having the best channel quality among the HS-SCCHs.
摘要翻译：一种用于提供高速共享控制信道（HS-SCCH）的快速检测的方法和装置。 HS-SCCH携带通过高速下行链路共享信道（HS-DSCH）接收数据所需的信息。该装置接收经由多个HS-SCCH发送的消息。该装置测量经由每个HS-SCCH接收的消息的信道质量。该装置通过将信道质量与预定阈值进行比较来执行阈值测试。然后，该装置选择HS-SCCH中具有最佳信道质量的HS-SCCH。

9. 发明申请

US20080046800A1 Detection, avoidance and/or correction of problematic puncturing patterns in parity bit streams used when implementing turbo codes 有权
标题翻译：在实现turbo码时使用的奇偶校验比特流中的有问题的删截模式的检测，避免和/或校正
公开(公告)号：US20080046800A1
公开(公告)日：2008-02-21
申请号：US11974381
申请日：2007-10-12
申请人： Philip Pietraski , Gregory Sternberg
发明人： Philip Pietraski , Gregory Sternberg
IPC分类号： H03M13/23
CPC分类号： H03M13/2771 , H03M13/005 , H03M13/2792 , H03M13/2957 , H03M13/6362 , H03M13/6381 , H04L1/0067
摘要： Detecting, avoiding and/or correcting problematic puncturing patterns in parity bit streams used when implementing punctured Turbo codes is achieved without having to avoid desirable code rates. This enables identification/avoidance of regions of relatively poor Turbo code performance. Forward error correction comprising Turbo coding and puncturing achieves a smooth functional relationship between any measure of performance and the effective coding rate resulting from combining the lower rate code generated by the Turbo encoder with puncturing of the parity bits. In one embodiment, methods to correct/avoid degradations due to Turbo coding are implemented by puncturing interactions when two or more stages of rate matching are employed.
摘要翻译：检测，避免和/或纠正实现穿孔Turbo码时使用的奇偶校验比特流中有问题的打孔模式，而无需避免所需的代码率。这使得能够识别/避免相对较差的Turbo码性能的区域。包括Turbo编码和穿孔的前向纠错实现了任何性能测量与由Turbo编码器产生的较低速率码与奇偶校验位的打孔所产生的有效编码速率之间的平滑功能关系。在一个实施例中，用于校正/避免由Turbo编码引起的劣化的方法通过采用两个或更多个速率匹配阶段时的穿孔交互实现。

10. 发明申请

US20070173201A1 Method and apparatus for generating a correction term 审中-公开
标题翻译：用于产生校正项的方法和装置
公开(公告)号：US20070173201A1
公开(公告)日：2007-07-26
申请号：US11716290
申请日：2007-03-09
申请人： Philip Pietraski , Gregory Sternberg , Rui Yang
发明人： Philip Pietraski , Gregory Sternberg , Rui Yang
IPC分类号： H04B17/00
CPC分类号： H04L1/20 , H04B1/1027 , H04L1/0025 , H04L1/0026 , H04L1/0028 , H04L1/1607
摘要： A method and apparatus for generating a correction term is disclosed. A plurality of data packets are received from a transmitter. An acknowledgement (ACK) signal is generated for each data packet in which an error does not exist, and a negative-acknowledgement (NACK) signal is generated for each data packet in which an error exists. The generated signals are mapped into a binary signal. The binary signal is filtered to generate a filtered binary signal. A target packet error rate (PER) is generated. An error signal is generated by subtracting the target PER from the filtered binary signal. The error signal is processed to generate at least one correction term. The at least one correction term may be used to bias a signal-to-interference ratio (SIR) estimate of a communication channel established between the transmitter and a receiver based on the received data packets.
摘要翻译：公开了一种用于产生校正项的方法和装置。从发射机接收多个数据分组。对于其中不存在错误的每个数据分组生成确认（ACK）信号，并且对于存在错误的每个数据分组生成否定确认（NACK）信号。所生成的信号被映射成二进制信号。对二进制信号进行滤波以产生经滤波的二进制信号。产生目标分组错误率（PER）。通过从滤波的二进制信号中减去目标PER产生误差信号。处理误差信号以产生至少一个校正项。可以使用至少一个校正项来基于接收到的数据分组来偏置在发射机和接收机之间建立的通信信道的信号干扰比（SIR）估计。

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