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1. 发明授权

US11190277B1 Blind estimation of residual chromatic dispersion and carrier frequency offset 有权
公开(公告)号：US11190277B1
公开(公告)日：2021-11-30
申请号：US17333557
申请日：2021-05-28
申请人： Tung Trong Nguyen , Timothy James Creasy , Shahab Oveis Gharan
发明人： Tung Trong Nguyen , Timothy James Creasy , Shahab Oveis Gharan
IPC分类号： H04B10/61 , H04B10/079
摘要： Upon receiving a communications signal conveying symbols at a symbol period T, a receiver applies filter coefficients to a digital representation of the communications signal, thereby generating filtered signals characterized by a substantially raised cosine shape in the frequency domain with a roll-off factor α, where components of the filtered signals correspond to angular frequencies ω = - π ⁡ ( 1 + α ) T ⁢ … - π ⁡ ( 1 - α ) T , + π ⁡ ( 1 - α ) T ⁢ … + π ⁡ ( 1 + α ) T . The receiver calculates first-order components from a first phase derivative of the components at a first differential distance, second-order components from a second phase derivative of the first-order components at a second differential distance, and composite second-order components from an average of the second-order components over multiple time intervals. Using the composite second-order components, the receiver calculates at least one of (i) an estimate of residual chromatic dispersion (CD) associated with the filtered signals, and (ii) an estimate of carrier frequency offset (CFO) associated with the filtered signals.

2. 发明申请

US20130013976A1 CODE BLOCK REORDERING PRIOR TO FORWARD ERROR CORRECTION DECODING BASED ON PREDICTED CODE BLOCK RELIABILITY 审中-公开
标题翻译：根据预测的代码块可靠性进行前向纠错解码前的代码块重写
公开(公告)号：US20130013976A1
公开(公告)日：2013-01-10
申请号：US13614162
申请日：2012-09-13
申请人： Andrew Mark Earnshaw , Jason Robert Duggan , Timothy James Creasy
发明人： Andrew Mark Earnshaw , Jason Robert Duggan , Timothy James Creasy
IPC分类号： H03M13/29
CPC分类号： H04L1/0053 , H03M13/09 , H03M13/1102 , H03M13/15 , H03M13/1505 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/23 , H03M13/2957 , H03M13/612 , H03M13/6306 , H03M13/6337 , H03M13/6525 , H03M13/6561 , H03M13/658 , H04L1/1812 , H04L1/1845 , H04L1/20
摘要： Method and a receiver in a communication system for receiving a transport block. The transport block comprises code blocks, each of the code blocks includes an error detection code and an error correction code. Reliability metrics are determined using an input generated during processing of the code blocks after the transport block is received. Each of the reliability metrics corresponds to each of the code blocks. A code block reorderer reorders the code blocks in an order based on the reliability metrics and a selection criterion. A decoder decodes each of the code blocks using the error correction code in the order. A verifier verifies each of the decoded code blocks using the error detection code.
摘要翻译：用于接收传输块的通信系统中的方法和接收机。传输块包括码块，每个码块包括错误检测码和纠错码。在接收到传输块之后，使用在处理代码块期间生成的输入来确定可靠性度量。每个可靠性度量对应于每个代码块。代码块重新定义器基于可靠性度量和选择标准以顺序重新排序代码块。解码器使用纠错码按顺序解码每个码块。验证者使用错误检测码来验证每个解码的代码块。

3. 发明申请

US20120270537A1 METHOD AND SYSTEM FOR FREQUENCY SCAN USING A DIFFERENTIAL POWER METRIC 失效
标题翻译：使用差分功率计的频谱扫描方法与系统
公开(公告)号：US20120270537A1
公开(公告)日：2012-10-25
申请号：US13089866
申请日：2011-04-19
申请人： JIANFENG WENG , JASON ROBERT DUGGAN , TIMOTHY JAMES CREASY
发明人： JIANFENG WENG , JASON ROBERT DUGGAN , TIMOTHY JAMES CREASY
IPC分类号： H04W24/00
CPC分类号： H04W48/16 , H04W24/02 , H04W48/20
摘要： Described herein are methods and devices for use in telecommunication cell selection and re-selection for which there may be multiple different sizes of transmission bandwidth configurations in a telecommunications operating band. For each of a plurality of channel hypotheses, in which each channel hypothesis has a hypothetical occupied portion and a hypothetical guard band portion, a respective metric is calculated based on a power value for the hypothetical occupied portion and a power value for the hypothetical guard band portion. Based on the metrics determined for the plurality of channel hypotheses, at least one channel hypothesis is selected for further processing for cell selection or re-selection. The metric is calculated by determining a difference between the power value for the hypothetical occupied portion and the power value for the hypothetical guard band portion.
摘要翻译：这里描述的是用于电信小区选择和重新选择的方法和装置，在电信工作频带中可能存在多种不同大小的传输带宽配置。对于多个信道假设中的每个信道假设，其中每个信道假设具有假设占用部分和假设保护带部分，基于假想占用部分的功率值和假设保护带的功率值来计算相应度量一部分。基于为多个信道假设确定的度量，选择至少一个信道假设用于进一步处理小区选择或重新选择。通过确定假想占用部分的功率值与假想保护带部分的功率值之间的差异来计算度量。

4. 发明授权

US08630643B2 Method and system for frequency scan using an adaptive measurement interval 失效
标题翻译：使用自适应测量间隔进行频率扫描的方法和系统
公开(公告)号：US08630643B2
公开(公告)日：2014-01-14
申请号：US13180027
申请日：2011-07-11
申请人： Jianfeng Weng , Jason Robert Duggan , Timothy James Creasy
发明人： Jianfeng Weng , Jason Robert Duggan , Timothy James Creasy
IPC分类号： H04W4/00
CPC分类号： H04W36/0083 , H04W48/20
摘要： Aspects of the present application include using adaptive measurement intervals to improve RSSI scan accuracy. A method may involve determining a first power value in respect of a first measurement time interval, determining whether or not the first power value meets at least one criterion, when the first power value does not meet the at least one criterion, determining at least one additional power value, selecting at least one power value from a set of power values that have been determined, the set including the first power value and the at least one additional power value, and determining the power value for use in cell selection or cell re-selection based on the selected at least one power value. The methods may be applied to any cell selection or re-selection scheme for which an adaptive measurement interval may be beneficial.
摘要翻译：本申请的方面包括使用自适应测量间隔来提高RSSI扫描精度。一种方法可以包括确定关于第一测量时间间隔的第一功率值，当第一功率值不满足至少一个标准时，确定第一功率值是否满足至少一个准则，确定至少一个附加功率值，从已经确定的一组功率值中选择至少一个功率值，该组包括第一功率值和至少一个附加功率值，以及确定在小区选择或小区重新使用中的功率值 - 基于所选择的至少一个功率值选择。这些方法可以应用于任何小区选择或重选方案，其中自适应测量间隔可能是有益的。

5. 发明申请

US20100223534A1 Code Block Reordering Prior to Forward Error Correction Decoding Based On Predicted Code Block Reliability 有权
标题翻译：基于预测码块可靠性的前向纠错解码之前的代码块重排序
公开(公告)号：US20100223534A1
公开(公告)日：2010-09-02
申请号：US12394228
申请日：2009-02-27
申请人： Andrew Mark Earnshaw , Jason Robert Duggan , Timothy James Creasy
发明人： Andrew Mark Earnshaw , Jason Robert Duggan , Timothy James Creasy
IPC分类号： H03M13/45 , G06F11/10
CPC分类号： H04L1/0053 , H03M13/09 , H03M13/1102 , H03M13/15 , H03M13/1505 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/23 , H03M13/2957 , H03M13/612 , H03M13/6306 , H03M13/6337 , H03M13/6525 , H03M13/6561 , H03M13/658 , H04L1/1812 , H04L1/1845 , H04L1/20
摘要： Method and a receiver in a communication system for receiving a transport block. The transport block comprises code blocks, each of the code blocks includes an error detection code and an error correction code. Reliability metrics are determined using an input generated during processing of the code blocks after the transport block is received. Each of the reliability metrics corresponds to each of the code blocks. A code block reorderer reorders the code blocks in an order based on the reliability metrics and a selection criterion. A decoder decodes each of the code blocks using the error correction code in the order. A verifier verifies each of the decoded code blocks using the error detection code.
摘要翻译：用于接收传输块的通信系统中的方法和接收机。传输块包括码块，每个码块包括错误检测码和纠错码。在接收到传输块之后，使用在处理代码块期间生成的输入来确定可靠性度量。每个可靠性度量对应于每个代码块。代码块重新定义器基于可靠性度量和选择标准以顺序重新排序代码块。解码器使用纠错码按顺序解码每个码块。验证者使用错误检测码来验证每个解码的代码块。

6. 发明授权

US11451304B1 Blind estimation of residual chromatic dispersion and carrier frequency offset 有权
公开(公告)号：US11451304B1
公开(公告)日：2022-09-20
申请号：US17524251
申请日：2021-11-11
申请人： Tung Trong Nguyen , Timothy James Creasy , Shahab Oveis Gharan
发明人： Tung Trong Nguyen , Timothy James Creasy , Shahab Oveis Gharan
IPC分类号： H04B10/61 , H04B10/2513 , H04L27/26 , H04L27/00
摘要： Upon receiving a communications signal conveying symbols at a symbol period T, a receiver applies filter coefficients to a digital representation of the communications signal, thereby generating filtered signals having a shape in the frequency domain characterized by a bandwidth expansion factor α, where components of the filtered signals correspond to angular frequencies ω = - π ⁡ ( 1 + α ) T ⁢ ⁢ … - π ⁡ ( 1 - α ) T , + π ⁡ ( 1 - α ) T ⁢ ⁢ … + π ⁡ ( 1 + α ) T . The receiver calculates first-order components from a first phase derivative of the components at a first differential distance, second-order components from a second phase derivative of the first-order components at a second differential distance, and composite second-order components from an average of the second-order components over multiple time intervals. Using the composite second-order components, the receiver calculates at least one of (i) an estimate of residual chromatic dispersion (CD) associated with the filtered signals, and (ii) an estimate of carrier frequency offset (CFO) associated with the filtered signals.

7. 发明授权

US09331717B2 Forward error correction decoding avoidance based on predicted code block reliability 有权
标题翻译：基于预测码块可靠性的前向纠错解码避免
公开(公告)号：US09331717B2
公开(公告)日：2016-05-03
申请号：US12394162
申请日：2009-02-27
申请人： Jason Robert Duggan , Andrew Mark Earnshaw , Timothy James Creasy
发明人： Jason Robert Duggan , Andrew Mark Earnshaw , Timothy James Creasy
IPC分类号： H04L12/28 , H03M13/37 , H03M13/00 , H04L1/00 , H04L1/20 , H03M13/11 , H03M13/15 , H03M13/23 , H03M13/29 , H04L1/18
CPC分类号： H04L1/0045 , H03M13/1102 , H03M13/15 , H03M13/1515 , H03M13/23 , H03M13/2909 , H03M13/2957 , H03M13/3707 , H03M13/6306 , H04L1/0021 , H04L1/0036 , H04L1/0053 , H04L1/1812 , H04L1/1829 , H04L1/20 , H04W52/0274 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/144
摘要： A method and device for performing forward error (FEC) correction avoidance based upon predicted block code reliability in a communications device is provided. An avoidance unit comprising a metric computation unit and a decision unit generates a reliability metric based upon a received code block. The reliability metric is compared to a reliability threshold, and the forward error correction decoder in the communications device is disabled if the metric is below or equal to the threshold.
摘要翻译：提供了一种基于通信设备中预测的块代码可靠性执行前向纠错避免的方法和装置。包括度量计算单元和判定单元的回避单元基于接收到的代码块生成可靠性度量。将可靠性度量与可靠性阈值进行比较，并且如果度量低于或等于阈值，则通信设备中的前向纠错解码器被禁用。

8. 发明授权

US08606261B2 Method and system for frequency scan using a differential power metric 失效
标题翻译：使用差分功率度量进行频率扫描的方法和系统
公开(公告)号：US08606261B2
公开(公告)日：2013-12-10
申请号：US13089866
申请日：2011-04-19
申请人： Jianfeng Weng , Jason Robert Duggan , Timothy James Creasy
发明人： Jianfeng Weng , Jason Robert Duggan , Timothy James Creasy
IPC分类号： H04W24/00
CPC分类号： H04W48/16 , H04W24/02 , H04W48/20
摘要： Described herein are methods and devices for use in telecommunication cell selection and re-selection for which there may be multiple different sizes of transmission bandwidth configurations in a telecommunications operating band. For each of a plurality of channel hypotheses, in which each channel hypothesis has a hypothetical occupied portion and a hypothetical guard band portion, a respective metric is calculated based on a power value for the hypothetical occupied portion and a power value for the hypothetical guard band portion. Based on the metrics determined for the plurality of channel hypotheses, at least one channel hypothesis is selected for further processing for cell selection or re-selection. The metric is calculated by determining a difference between the power value for the hypothetical occupied portion and the power value for the hypothetical guard band portion.
摘要翻译：这里描述的是用于电信小区选择和重新选择的方法和装置，在电信工作频带中可能存在多种不同大小的传输带宽配置。对于多个信道假设中的每个信道假设，其中每个信道假设具有假设占用部分和假设保护带部分，基于假想占用部分的功率值和假设保护带的功率值来计算相应度量一部分。基于为多个信道假设确定的度量，选择至少一个信道假设用于进一步处理小区选择或重新选择。通过确定假想占用部分的功率值与假想保护带部分的功率值之间的差异来计算度量。

9. 发明申请

US20100223524A1 Forward Error Correction Decoding Avoidance Based on Predicted Code Block Reliability 有权
标题翻译：基于预测码块可靠性的前向纠错解码避免
公开(公告)号：US20100223524A1
公开(公告)日：2010-09-02
申请号：US12394162
申请日：2009-02-27
申请人： Jason Robert Duggan , Andrew Mark Earnshaw , Timothy James Creasy
发明人： Jason Robert Duggan , Andrew Mark Earnshaw , Timothy James Creasy
IPC分类号： H03M13/05 , H04L1/08 , G06F11/10 , G06F11/14
CPC分类号： H04L1/0045 , H03M13/1102 , H03M13/15 , H03M13/1515 , H03M13/23 , H03M13/2909 , H03M13/2957 , H03M13/3707 , H03M13/6306 , H04L1/0021 , H04L1/0036 , H04L1/0053 , H04L1/1812 , H04L1/1829 , H04L1/20 , H04W52/0274 , Y02D70/1242 , Y02D70/1244 , Y02D70/1262 , Y02D70/144
摘要： A method and device for performing forward error (FEC) correction avoidance based upon predicted block code reliability in a communications device is provided. An avoidance unit comprising a metric computation unit and a decision unit generates a reliability metric based upon a received code block. The reliability metric is compared to a reliability threshold, and the forward error correction decoder in the communications device is disabled if the metric is below or equal to the threshold.
摘要翻译：提供了一种基于通信设备中预测的块代码可靠性执行前向纠错避免的方法和装置。包括度量计算单元和判定单元的回避单元基于接收到的代码块生成可靠性度量。将可靠性度量与可靠性阈值进行比较，并且如果度量低于或等于阈值，则通信设备中的前向纠错解码器被禁用。

10. 发明申请

US20130017828A1 METHOD AND SYSTEM FOR FREQUENCY SCAN USING AN ADAPTIVE MEASUREMENT INTERVAL 失效
标题翻译：使用自适应测量间隔进行频谱扫描的方法和系统
公开(公告)号：US20130017828A1
公开(公告)日：2013-01-17
申请号：US13180027
申请日：2011-07-11
申请人： JIANFENG WENG , JASON ROBERT DUGGAN , TIMOTHY JAMES CREASY
发明人： JIANFENG WENG , JASON ROBERT DUGGAN , TIMOTHY JAMES CREASY
IPC分类号： H04W24/00
CPC分类号： H04W36/0083 , H04W48/20
摘要： Aspects of the present application include using adaptive measurement intervals to improve RSSI scan accuracy. A method may involve determining a first power value in respect of a first measurement time interval, determining whether or not the first power value meets at least one criterion, when the first power value does not meet the at least one criterion, determining at least one additional power value, selecting at least one power value from a set of power values that have been determined, the set including the first power value and the at least one additional power value, and determining the power value for use in cell selection or cell re-selection based on the selected at least one power value. The methods may be applied to any cell selection or re-selection scheme for which an adaptive measurement interval may be beneficial.
摘要翻译：本申请的方面包括使用自适应测量间隔来提高RSSI扫描精度。一种方法可以包括确定关于第一测量时间间隔的第一功率值，当第一功率值不满足至少一个标准时，确定第一功率值是否满足至少一个准则，确定至少一个附加功率值，从已经确定的一组功率值中选择至少一个功率值，该组包括第一功率值和至少一个附加功率值，以及确定在小区选择或小区重新使用中的功率值 - 基于所选择的至少一个功率值选择。这些方法可以应用于任何小区选择或重选方案，其中自适应测量间隔可能是有益的。

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