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公开(公告)号:JPWO2012144205A1
公开(公告)日:2014-07-28
申请号:JP2013510887
申请日:2012-04-18
申请人: パナソニック株式会社
CPC分类号: H04B7/0602 , H04B1/0096 , H04B7/0413 , H04B7/0456 , H04B7/0682 , H04B17/0085 , H04B17/12 , H04J11/0033 , H04L12/189 , H04L27/36 , H04L27/38 , H04L65/4076 , H04W52/225
摘要: 第1の変調信号と第2の変調信号を同一周波数に同時に送信する送信方法であって、両信号に固定のプリコーディング行列を用いてプリコーディングするとともに、第1の変調信号または第2の変調信号の少なくとも一方の位相を規則的に切り替えて送信する。このとき、位相変更を行う信号生成処理と、位相変更を行わない信号生成処理を選択できるようにすることで、信号生成における汎用性を向上させることができる。
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公开(公告)号:JP5540146B2
公开(公告)日:2014-07-02
申请号:JP2013500877
申请日:2012-02-17
申请人: パナソニック株式会社
CPC分类号: H04B7/0456 , H04B7/0413 , H04B7/0469 , H04B7/0617 , H04L25/03171 , H04L25/03942 , H04L25/03949 , H04L27/18 , H04L27/2626 , H04L27/34
摘要: Disclosed is a precoding method for generating, from a plurality of baseband signals, a plurality of precoded signals that are transmitted in the same frequency bandwidth at the same time. According to the precoding method, one matrix is selected from among matrices defining a precoding process that is performed on the plurality of baseband signals by hopping between the matrices. A first baseband signal and a second baseband signal relating to a first coded block and a second coded block generated by using a predetermined error correction block coding scheme satisfy a given condition.
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公开(公告)号:JPWO2012098909A1
公开(公告)日:2014-06-09
申请号:JP2012553643
申请日:2012-01-20
申请人: パナソニック株式会社
CPC分类号: H03M13/373 , H03M13/1154 , H03M13/6356
摘要: 符号化方法は、情報系列を、符号化率が(n−1)/nである複数のパリティ検査多項式に基づくフィードフォワードLDPC畳み込み符号で符号化してパリティビット列を生成し、その後、インタリーブ処理を施し、アキュミュレート処理を施す。このアキュミュレート処理はインタリーブ後のパリティビット列のビットと、遅延させた前記アキュミュレート後のパリティビット列のビットとの排他的論理和を算出する処理である。そして、前記報系列と前記アキュミュレート後のパリティビット列とで構成される符号化系列を生成する。
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公开(公告)号:JPWO2012077310A1
公开(公告)日:2014-05-19
申请号:JP2012547694
申请日:2011-12-01
申请人: パナソニック株式会社
CPC分类号: H04B7/0456 , H04B7/0469 , H04B7/06 , H04B7/0606 , H04B7/0689 , H04L25/03898
摘要: 第1の変調信号と第2の変調信号を同一周波数に同時に送信する送信方法であって、第1のマッピング後のベースバンド信号と第2のマッピング後のベースバンド信号に対し、プリコーディングウェイトを乗算し、前記第1の変調信号と前記第2の変調信号を出力するプリコーディングウェイト乗算部において、規則的にプリコーディングウェイトを変更する。
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公开(公告)号:JP5340286B2
公开(公告)日:2013-11-13
申请号:JP2010518930
申请日:2009-07-02
申请人: パナソニック株式会社
IPC分类号: H03M13/19
CPC分类号: H04L1/0041 , H03M13/1154 , H03M13/17 , H03M13/2703 , H03M13/2707 , H03M13/353 , H03M13/356 , H03M13/373 , H03M13/3761 , H03M13/6306 , H03M13/6356 , H04L1/00 , H04L1/08
摘要: A loss correction encoding device having an improved capability of loss correction using LDPC-CC is disclosed. In the loss correction encoding device (120), a rearranging unit (122) rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q-1) / q of a check polynomial of the loss correction code used in a loss correction encoding unit (123). Specifically, the rearranging unit (122) rearranges the information data in such a way that continuous Kmax × (q-1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit (122) distributes the information data to information blocks from n information packets ( n satisfies formula (1)). Kmax × q - 1 ‰¤ n
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公开(公告)号:JP5106193B2
公开(公告)日:2012-12-26
申请号:JP2008070074
申请日:2008-03-18
申请人: パナソニック株式会社
CPC分类号: H04L27/2628 , H04L27/2614
摘要: Provided is a radio transmission device (100) which can flexibly cope with a request for assuring an error ratio feature during a high transmission rate, a request for increasing a cell coverage, or the like. The radio transmission device (100) includes a first subcarrier modulation unit (104) which forms a first subcarrier modulation signal obtained by converting a plurality of modulation signals into a frequency region; a second subcarrier modulation unit (105) which forms a second subcarrier modulation signal obtained by parallel conversion of a plurality of signals; an IFFT unit (111) which forms an OFDM signal by performing inverse Fourier transform on the first and the second subcarrier modulation signal; and a subcarrier mapping unit (110) which controls allocation of the first and the second subcarrier modulation signals.
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公开(公告)号:JP5089270B2
公开(公告)日:2012-12-05
申请号:JP2007173470
申请日:2007-06-29
申请人: パナソニック株式会社
CPC分类号: H04B7/0697 , H04L1/005 , H04L1/0057 , H04L1/0071 , H04L1/06
摘要: Provided is a multi-antenna transmission device which can improve the reception quality when performing a repeated detection using a software value at the reception device side in a spatial multiplex MIMO system. A transmission device (1600) includes M (M is an integer not smaller than 2) transmission units (1601_1 to 1601_M) which interleave and map each of encoded data of M systems and transmit them. Each of the M transmission units (1601_1 to 1601_M) has: N (N is an integer not smaller than 2) interleavers (504A1 to 504AN (504X1 to 504XN)) which interleave the encoded data obtained from the same transmission data, by using different interleave patterns; and N antennas (510A1 to 510AN (510X1 to 510XN)) which transmit the signals obtained BY the respective interleavers.
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公开(公告)号:JP5002215B2
公开(公告)日:2012-08-15
申请号:JP2006228337
申请日:2006-08-24
申请人: パナソニック株式会社
CPC分类号: H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要: AMIMO-OFDM transmission apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. Pilot symbol mapping (1111) is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain. Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
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公开(公告)号:JP4898858B2
公开(公告)日:2012-03-21
申请号:JP2009048535
申请日:2009-03-02
申请人: パナソニック株式会社
CPC分类号: H04L1/0009 , H03M13/036 , H03M13/1111 , H03M13/1148 , H03M13/1154 , H03M13/255 , H03M13/3723 , H03M13/6516 , H04L1/0041 , H04L1/0045 , H04L1/0058 , H04L1/0059
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