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1. 发明申请

US20120170630A1 CHANNEL ESTIMATION FILTERING 有权
标题翻译：频道估计滤波
公开(公告)号：US20120170630A1
公开(公告)日：2012-07-05
申请号：US13339341
申请日：2011-12-28
申请人： James Peroulas , Patrick Svedman
发明人： James Peroulas , Patrick Svedman
IPC分类号： H04L27/28 , H04W24/02 , H04B1/10
CPC分类号： H04L25/0232 , H04L25/0212 , H04L25/022 , H04L27/2647
摘要： The disclosed methods and systems for improved OFDM channel estimation filtering take advantage of the presence of highly correlated adjacent subcarriers to reduce the computational intensiveness of channel estimation filtering. Specifically, baseband signals corresponding to a channel are received. The cyclic prefixes of the baseband signals are removed, and the resulting signal is transformed into the frequency domain, and compensated by a first time offset of the baseband receive signal. Subcarrier signals used to transmit the baseband signal are then extracted. Adjacent subcarriers having channel responses highly correlated to the subcarriers of the channel are identified, and the signal is compensated by a second time offset that corresponds to a minimal angle of the autocorrelation function of the subcarrier and adjacent subcarriers. The resulting signal is filtered to produce filtered channel estimates, using a filter having a filter length corresponding to the number of highly correlated subcarriers that were identified.
摘要翻译：所公开的用于改进的OFDM信道估计滤波的方法和系统利用高度相关的相邻子载波的存在来利用信道估计滤波的计算强度。具体地，接收与信道相对应的基带信号。去除基带信号的循环前缀，并将得到的信号变换成频域，并由基带接收信号的第一时间偏移补偿。然后提取用于发送基带信号的子载波信号。识别具有与信道的子载波高度相关的信道响应的相邻副载波，并且该信号由对应于子载波和相邻子载波的自相关函数的最小角度的第二时间偏移补偿。使用具有对应于所识别的高度相关的子载波的数量的滤波器长度的滤波器来对结果信号进行滤波以产生滤波的信道估计。

2. 发明申请

US20100281333A1 FEEDBACK WITH UNEQUAL ERROR PROTECTION 有权
标题翻译：反馈不正常的错误保护
公开(公告)号：US20100281333A1
公开(公告)日：2010-11-04
申请号：US12812259
申请日：2008-08-25
申请人： George Jöngren , Patrick Svedman , Bo Göransson
发明人： George Jöngren , Patrick Svedman , Bo Göransson
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04L1/0026 , H03M13/356 , H04L1/0028 , H04L1/0041 , H04L1/0045 , H04L1/007 , H04L1/0072
摘要： Methods and devices provide a feedback message having unequal error protection. The feedback message may include channel quality indicators. The channel quality indicators may have different levels of error protection based on a transmission property.
摘要翻译：方法和设备提供具有不相等错误保护的反馈消息。反馈消息可以包括信道质量指示符。信道质量指示符可以基于传输属性具有不同级别的错误保护。

3. 发明申请

US20220039009A1 POWER SAVING MECHANISMS IN NR 有权
公开(公告)号：US20220039009A1
公开(公告)日：2022-02-03
申请号：US17279198
申请日：2019-07-17
申请人： Mohamed AWADIN , Patrick SVEDMAN , CONVIDA WIRELESS, LLC
发明人： Lakshmi R. IYER , Pascal M. ADJAKPLE , Qing LI , Guodong ZHANG , Joseph M. MURRAY , Yifan LI , Allan Y. TSAI , Mohamed AWADIN , Patrick SVEDMAN
IPC分类号： H04W52/02 , H04L5/00 , H04W72/04
摘要： Methods, systems, and devices may assist in power saving in new radio. For example, enable power savings during the connected mode discontinuous reception cycle of the RRC_CONNECTED state of a user equipment.

4. 发明授权

US09960882B2 Link adaptation systems and methods 有权
公开(公告)号：US09960882B2
公开(公告)日：2018-05-01
申请号：US13125368
申请日：2008-11-12
申请人： Patrick Svedman , Mathias Riback , Karl Werner
发明人： Patrick Svedman , Mathias Riback , Karl Werner
IPC分类号： H04B17/00 , H04L1/00 , H04B7/0413 , H04B7/0452 , H04L5/00
CPC分类号： H04L1/0026 , H04B7/0413 , H04B7/0452 , H04L1/0015 , H04L1/002 , H04L1/0025 , H04L5/006
摘要： The present application discloses systems and methods for adjusting a back-off value for a rank. In some embodiment, the method includes the steps of: (a) determining whether the rank is underutilized and (b) in response to determining that the rank is underutilized, decreasing the back-off value as a function of time while the rank remains underutilized.

5. 发明授权

US09112647B2 Feedback with unequal error protection 有权
标题翻译：反馈不平等的错误保护
公开(公告)号：US09112647B2
公开(公告)日：2015-08-18
申请号：US12812259
申请日：2008-08-25
申请人： George Jöngren , Patrick Svedman , Bo Göransson
发明人： George Jöngren , Patrick Svedman , Bo Göransson
IPC分类号： H04L1/00
CPC分类号： H04L1/0026 , H03M13/356 , H04L1/0028 , H04L1/0041 , H04L1/0045 , H04L1/007 , H04L1/0072
摘要： Methods and devices provide a feedback message having unequal error protection. The feedback message may include channel quality indicators. The channel quality indicators may have different levels of error protection based on a transmission property.
摘要翻译：方法和设备提供具有不相等错误保护的反馈消息。反馈消息可以包括信道质量指示符。信道质量指示符可以基于传输属性具有不同级别的错误保护。

6. 发明申请

US20110194596A1 LINK ADAPTATION SYSTEMS AND METHODS 有权
标题翻译：链接适应系统和方法
公开(公告)号：US20110194596A1
公开(公告)日：2011-08-11
申请号：US13125368
申请日：2008-11-12
申请人： Patrick Svedman , Mathias Riback , Karl Werner
发明人： Patrick Svedman , Mathias Riback , Karl Werner
IPC分类号： H04B17/00
CPC分类号： H04L1/0026 , H04B7/0413 , H04B7/0452 , H04L1/0015 , H04L1/002 , H04L1/0025 , H04L5/006
摘要： The present application discloses systems and methods for adjusting a back-off value for a rank. In some embodiment, the method includes the steps of: (a) determining whether the rank is underutilized and (b) in response to determining that the rank is underutilized, decreasing the back-off value as a function of time while the rank remains underutilized.
摘要翻译：本申请公开了用于调整秩的退避值的系统和方法。在一些实施例中，该方法包括以下步骤：（a）确定该等级是否未得到充分利用，以及（b）响应于确定该等级未得到充分利用，在该等级未得到充分利用的情况下，将后退值减小为时间的函数。

7. 发明授权

US09258150B2 Channel estimation filtering 有权
标题翻译：信道估计滤波
公开(公告)号：US09258150B2
公开(公告)日：2016-02-09
申请号：US13339341
申请日：2011-12-28
申请人： James Peroulas , Patrick Svedman
发明人： James Peroulas , Patrick Svedman
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0232 , H04L25/0212 , H04L25/022 , H04L27/2647
摘要： The disclosed methods and systems for improved OFDM channel estimation filtering take advantage of the presence of highly correlated adjacent subcarriers to reduce the computational intensiveness of channel estimation filtering. Specifically, baseband signals corresponding to a channel are received. The cyclic prefixes of the baseband signals are removed, and the resulting signal is transformed into the frequency domain, and compensated by a first time offset of the baseband receive signal. Subcarrier signals used to transmit the baseband signal are then extracted. Adjacent subcarriers having channel responses highly correlated to the subcarriers of the channel are identified, and the signal is compensated by a second time offset that corresponds to a minimal angle of the autocorrelation function of the subcarrier and adjacent subcarriers. The resulting signal is filtered to produce filtered channel estimates, using a filter having a filter length corresponding to the number of highly correlated subcarriers that were identified.
摘要翻译：所公开的用于改进的OFDM信道估计滤波的方法和系统利用高度相关的相邻子载波的存在来利用信道估计滤波的计算强度。具体地，接收与信道相对应的基带信号。去除基带信号的循环前缀，并将得到的信号变换成频域，并由基带接收信号的第一时间偏移补偿。然后提取用于发送基带信号的子载波信号。识别具有与信道的子载波高度相关的信道响应的相邻副载波，并且该信号由对应于子载波和相邻子载波的自相关函数的最小角度的第二时间偏移补偿。使用具有对应于所识别的高度相关的子载波的数量的滤波器长度的滤波器来对结果信号进行滤波以产生滤波的信道估计。

8. 发明授权

US08537924B2 Open loop precoder cycling in MIMO communications 有权
标题翻译： MIMO通信中的开环预编码循环
公开(公告)号：US08537924B2
公开(公告)日：2013-09-17
申请号：US12812159
申请日：2008-05-07
申请人： George Jöngren , David Hammarwall , Patrick Svedman
发明人： George Jöngren , David Hammarwall , Patrick Svedman
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0639 , H04B7/10 , H04L2025/03426
摘要： Data is transmitted over multiple input multiple output (MIMO) channels. Plural bit streams are modulated into multiple data symbol vectors. Each vector has a transmission rank with one vector for each MIMO channel. Transmission rank is the number of elements in a data symbol vector corresponding to the number of data streams being transmitted in parallel over each MIMO channel. The multiple data symbol vectors are preceded into multiple precoded symbol vectors using a plurality of precoder cycling sets, one set for each transmission rank including multiple different precoders. The precoders in each precoder cycling set are well-separated with respect to a plurality of distance measures. The precoding includes precoding each data symbol vector of a transmission rank with a precoder belonging to the precoder cycling set of that transmission rank. The precoded symbol vectors are then transmitted over the MIMO channels.
摘要翻译：数据通过多输入多输出（MIMO）信道传输。多个比特流被调制成多个数据符号向量。每个矢量具有每个MIMO信道具有一个向量的传输秩。传输等级是对应于在每个MIMO信道上并行发送的数据流的数量的数据符号向量中的元素的数量。多个数据符号向量在多个预编码符号向量之前，使用多个预编码器循环组，每个包含多个不同的预编码器的每个传输等级集合。每个预编码器循环组中的预编码器相对于多个距离测量被很好地分离。预编码包括用属于该传输等级的预编码器循环组的预编码器来预编码传输秩的每个数据符号向量。然后通过MIMO信道发送预编码的符号向量。

9. 发明申请

US20100284484A1 OPEN LOOP PRECODER CYCLING IN MIMO COMMUNICATIONS 有权
标题翻译： MIMO通信中的环路预编码循环
公开(公告)号：US20100284484A1
公开(公告)日：2010-11-11
申请号：US12812159
申请日：2008-05-07
申请人： George Jöngren , David Hammarwall , Patrick Svedman
发明人： George Jöngren , David Hammarwall , Patrick Svedman
IPC分类号： H04B7/02 , H04L27/00
CPC分类号： H04B7/0639 , H04B7/10 , H04L2025/03426
摘要： Data is transmitted over multiple input multiple output (MIMO) channels. Plural bit streams are modulated into multiple data symbol vectors. Each vector has a transmission rank with one vector for each MIMO channel. Transmission rank is the number of elements in a data symbol vector corresponding to the number of data streams being transmitted in parallel over each MIMO channel. The multiple data symbol vectors are preceded into multiple precoded symbol vectors using a plurality of precoder cycling sets, one set for each transmission rank including multiple different precoders. The precoders in each precoder cycling set are well-separated with respect to a plurality of distance measures. The precoding includes precoding each data symbol vector of a transmission rank with a precoder belonging to the precoder cycling set of that transmission rank. The precoded symbol vectors are then transmitted over the MIMO channels.
摘要翻译：数据通过多输入多输出（MIMO）信道传输。多个比特流被调制成多个数据符号向量。每个矢量具有每个MIMO信道具有一个向量的传输秩。传输等级是对应于在每个MIMO信道上并行发送的数据流的数量的数据符号向量中的元素的数量。多个数据符号向量在多个预编码符号向量之前，使用多个预编码器循环组，每个包含多个不同的预编码器的每个传输等级集合。每个预编码器循环组中的预编码器相对于多个距离测量被很好地分离。预编码包括用属于该传输等级的预编码器循环组的预编码器来预编码传输秩的每个数据符号向量。然后通过MIMO信道发送预编码的符号向量。

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