公开(公告)号：EP2383917A4

公开(公告)日：2016-03-30

申请号：EP10735645

申请日：2010-01-28

Applicant: PANASONIC IP CORP AMERICA

Inventor： IWAI TAKASHI ,  FUTAGI SADAKI ,  TAKATA TOMOHUMI ,  IMAMURA DAICHI ,  OGAWA YOSHIHIKO

IPC: H04J11/00 ,  H04B7/06 ,  H04B7/12 ,  H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/03159 ,  H04L27/2613

公开(公告)号：EP2410684A4

公开(公告)日：2016-02-17

申请号：EP10753226

申请日：2010-02-10

Applicant: PANASONIC IP CORP AMERICA

Inventor： HOSHINO MASAYUKI ,  NISHIO AKIHIKO ,  NAKAO SEIGO ,  IMAMURA DAICHI

IPC: H04W72/12 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18 ,  H04L1/20 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/044 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1829 ,  H04L1/20 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0094 ,  H04L25/0224 ,  H04W72/0406 ,  H04W72/1215

Abstract: In a case where a second reference signal for a second communication system is transmitted in addition to a first reference signal for a first communication system, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame on the basis of CSI-RS allocation information, measures channel quality such as CQI, PMI or RI by using this CSI-RS, and transmits and reports feedback information containing channel quality information to a transmission apparatus.

公开(公告)号：EP2334133A4

公开(公告)日：2015-10-21

申请号：EP09815916

申请日：2009-09-28

Applicant: PANASONIC IP CORP AMERICA

Inventor： HORIUCHI AYAKO ,  NAKAO SEIGO ,  IMAMURA DAICHI ,  NISHIO AKIHIKO

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W28/06 ,  H04W48/18 ,  H04W88/10

CPC classification number: H04W28/044 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/042 ,  H04W74/085

Abstract: Disclosed is a CCE+ number allocation method which reduces the ACK/NACK (Acknowledgment/Negative Acknowledgment) collision probability in a mixed system containing an LTE (Long Term Evolution) system and an LTE+ (Long Term Evolution Advanced) system. A CCE(Control Channel Element)+ number is defined by selecting a number from CCE numbers of the CCE to contain PDCCH (Physical Downlink Control Channel) allocated in a resource element region constituting CCE+ where PDCCH + is arranged. This can prevent overlapped selection of the CCE number and the CCE + number even when the PDCCH and the PDCCH+ are simultaneously transmitted. Thus, it is possible to reduce the collision probability of ACK/NACK correlated to the CCE number and the CCE+ number.

公开(公告)号：EP2341634A4

公开(公告)日：2015-08-12

申请号：EP09823267

申请日：2009-10-21

Applicant: PANASONIC IP CORP AMERICA

Inventor： HOSHINO MASAYUKI ,  HORIUCHI AYAKO ,  NAKAO SEIGO ,  IMAMURA DAICHI ,  NISHIO AKIHIKO ,  OGAWA YOSHIHIKO

IPC: H04B1/707 ,  H04B7/06 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04J13/18 ,  H04J13/22

CPC classification number: H04J11/0023 ,  H04B7/0671 ,  H04J13/004 ,  H04J13/0059 ,  H04J13/0074 ,  H04J13/18 ,  H04J13/22 ,  H04L1/06 ,  H04L1/1692 ,  H04L1/1861

公开(公告)号：EP2567481A4

公开(公告)日：2014-11-05

申请号：EP11777120

申请日：2011-04-01

Applicant: PANASONIC IP CORP AMERICA

Inventor： ZHANG ZHI ,  XU MING ,  HOSHINO MASAYUKI ,  NAKAO SEIGO ,  IMAMURA DAICHI

IPC: H04J11/00 ,  H04J13/00 ,  H04J13/12 ,  H04J13/18 ,  H04L5/00

CPC classification number: H04J13/004 ,  H04J13/0048 ,  H04J13/12 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0066 ,  H04L43/087

Abstract: The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.