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Patent Agency Ranking
1.发明申请公开(公告)号：US20160173305A1
公开(公告)日：2016-06-16
申请号：US15052337
申请日：2016-02-24
Applicant: BROADCOM CORPORATION
Inventor： Jun Zheng , Min Chuin Hoo , Vinko Erceg
IPC: H04L27/227 , H04B7/08
CPC classification number: H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
Abstract: Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
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公开(公告)号：US09276790B2
公开(公告)日：2016-03-01
申请号：US14585305
申请日：2014-12-30
Applicant: BROADCOM CORPORATION
Inventor： Jun Zheng , Min Chuin Hoo , Vinko Erceg
CPC classification number: H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
Abstract: Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
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公开(公告)号：US20130230087A1
公开(公告)日：2013-09-05
申请号：US13865442
申请日：2013-04-18
Applicant: BROADCOM CORPORATION
Inventor： Rajendra Tushar Moorti , Min Chuin Hoo , Jason Alexander Trachewsky
IPC: H04B17/00
CPC classification number: H04B17/0042 , H01Q1/1257 , H04B1/1027 , H04B7/0805 , H04B17/309
Abstract: A signal quality metric is determined for each of multiple signal paths. Each of the signal paths corresponds to a respective antenna. The determined signal quality metric is modified for one or more signal paths. A subset of the signal paths is selected for receiving a signal based at least in part on the determined signal quality metrics. The selecting is biased based at least in part on the modified signal quality metrics.
Abstract translation: 为每个多个信号路径确定信号质量度量。 每个信号路径对应于相应的天线。 对于一个或多个信号路径修改确定的信号质量度量。 选择信号路径的子集用于至少部分地基于所确定的信号质量度量来接收信号。 该选择至少部分地基于修改的信号质量度量而偏置。
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公开(公告)号：US20150117569A1
公开(公告)日：2015-04-30
申请号：US14585305
申请日：2014-12-30
Applicant: BROADCOM CORPORATION
Inventor： Jun Zheng , Min Chuin Hoo , Vinko Erceg
IPC: H04L27/20
CPC classification number: H04L27/227 , H04B7/084 , H04L5/0026 , H04L5/0048 , H04L25/03866 , H04L27/20 , H04L27/2613 , H04L27/2621
Abstract: Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.
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公开(公告)号：US08670718B2
公开(公告)日：2014-03-11
申请号：US13865442
申请日：2013-04-18
Applicant: Broadcom Corporation
Inventor： Rajendra Tushar Moorti , Min Chuin Hoo , Jason Alexander Trachewsky
CPC classification number: H04B17/0042 , H01Q1/1257 , H04B1/1027 , H04B7/0805 , H04B17/309
Abstract: A signal quality metric is determined for each of multiple signal paths. Each of the signal paths corresponds to a respective antenna. The determined signal quality metric is modified for one or more signal paths. A subset of the signal paths is selected for receiving a signal based at least in part on the determined signal quality metrics. The selecting is biased based at least in part on the modified signal quality metrics.
Abstract translation: 为每个多个信号路径确定信号质量度量。 每个信号路径对应于相应的天线。 对于一个或多个信号路径修改确定的信号质量度量。 选择信号路径的子集用于至少部分地基于所确定的信号质量度量来接收信号。 该选择至少部分地基于修改的信号质量度量而偏置。
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