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公开(公告)号:US20130156075A1
公开(公告)日:2013-06-20
申请号:US13529280
申请日:2012-06-21
申请人: Hooman Shirani-Mehr , Debdeep Chatterjee , Apostolos Papathanassiou , Peter J. Smith , Mansoor Shafi , Abdulla Firag
发明人: Hooman Shirani-Mehr , Debdeep Chatterjee , Apostolos Papathanassiou , Peter J. Smith , Mansoor Shafi , Abdulla Firag
IPC分类号: H04B7/04
CPC分类号: H04W52/0222 , H04B7/024 , H04B7/0417 , H04B7/0456 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04L5/0032 , H04L5/0037 , H04L12/189 , H04L25/0204 , H04L45/245 , H04L47/41 , H04W4/06 , H04W4/08 , H04W28/10 , H04W36/0005 , H04W48/12 , H04W48/16 , H04W48/18 , H04W52/0235 , H04W52/04 , H04W52/146 , H04W52/244 , H04W52/365 , H04W52/54 , H04W72/005 , H04W72/042 , H04W72/0426 , H04W72/0446 , H04W72/082 , H04W72/1215 , H04W72/1278 , H04W72/1294 , H04W76/28 , H04W76/34 , H04W76/40 , H04W84/042 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/444
摘要: Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error.
摘要翻译: 简而言之,根据一个或多个实施例,可以通过将码本划分成固定的码字集合和自适应码字集合来生成用于无线传输的码本。 可以将自适应码字集合缩放以聚集在一起,然后旋转以围绕目标居中或几乎居中。 然后可以将自适应码字集合与固定的码字集合合并提供混合码本。 可以选择来自混合码本的码字用于预编码传输以提供最小或接近最小的量化误差。
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公开(公告)号:US09088872B2
公开(公告)日:2015-07-21
申请号:US13529280
申请日:2012-06-21
申请人: Hooman Shirani-Mehr , Debdeep Chatterjee , Apostolos Papathanassiou , Peter J. Smith , Mansoor Shafi , Abdulla Firag
发明人: Hooman Shirani-Mehr , Debdeep Chatterjee , Apostolos Papathanassiou , Peter J. Smith , Mansoor Shafi , Abdulla Firag
IPC分类号: H04B1/38 , H04W4/06 , H04B7/04 , H04W52/02 , H04L12/891 , H04W52/04 , H04B7/06 , H04L5/00 , H04W72/04 , H04W4/08 , H04W36/00 , H04W28/04 , H04W72/00 , H04L12/18
CPC分类号: H04W52/0222 , H04B7/024 , H04B7/0417 , H04B7/0456 , H04B7/0613 , H04B7/0615 , H04B7/0619 , H04L5/0032 , H04L5/0037 , H04L12/189 , H04L25/0204 , H04L45/245 , H04L47/41 , H04W4/06 , H04W4/08 , H04W28/10 , H04W36/0005 , H04W48/12 , H04W48/16 , H04W48/18 , H04W52/0235 , H04W52/04 , H04W52/146 , H04W52/244 , H04W52/365 , H04W52/54 , H04W72/005 , H04W72/042 , H04W72/0426 , H04W72/0446 , H04W72/082 , H04W72/1215 , H04W72/1278 , H04W72/1294 , H04W76/28 , H04W76/34 , H04W76/40 , H04W84/042 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/444
摘要: Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error.
摘要翻译: 简而言之,根据一个或多个实施例,可以通过将码本划分成固定的码字集合和自适应码字集合来生成用于无线传输的码本。 可以将自适应码字集合缩放以聚集在一起,然后旋转以围绕目标居中或几乎居中。 然后可以将自适应码字集合与固定的码字集合合并提供混合码本。 可以选择来自混合码本的码字用于预编码传输以提供最小或接近最小的量化误差。
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