公开(公告)号：US20070286301A1

公开(公告)日：2007-12-13

申请号：US11597420

申请日：2005-05-24

申请人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H04L5/12

CPC分类号： H04L27/2637 ,  H04L27/2649

摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.

摘要翻译： 一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。 调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特 频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。 因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

公开(公告)号：US07936811B2

公开(公告)日：2011-05-03

申请号：US11597420

申请日：2005-05-24

申请人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H04L27/00 ,  H04L25/03

CPC分类号： H04L27/2637 ,  H04L27/2649

摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.

摘要翻译： 一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。 调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特 频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。 因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

公开(公告)号：US08121213B2

公开(公告)日：2012-02-21

申请号：US10565380

申请日：2004-07-26

申请人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H03C1/52

CPC分类号： H04L27/2332 ,  H03C1/60 ,  H03D1/24 ,  H04B1/68 ,  H04L27/04 ,  H04L27/06 ,  H04L27/2053 ,  H04L27/2338

摘要： A modulation apparatus is disclosed that enables significant improvements in signal transmission rate in a limited frequency band as compared with conventional modulation schemes. The modulation apparatus has first and second frequency-increasing single side band (SSB) modulators. The modulators are configured to have respective carrier frequencies with a difference by a frequency corresponding to the symbol frequency (i.e. fundamental frequency of the input symbol). An adder combines a lower side band (LSB) signal obtained from the SSB modulator set for a higher carrier frequency, and an upper side band (USB) signal obtained from the SSB modulator set for a lower carrier frequency to obtain a modulation signal.

摘要翻译： 公开了一种与常规调制方案相比在有限频带中显着改善信号传输速率的调制装置。 调制装置具有第一和第二增频单边带（SSB）调制器。 调制器被配置为具有相应的载波频率，其频率与符号频率（即，输入符号的基频）相对应的频率。 加法器组合从用于较高载波频率的SSB调制器集获得的下边带（LSB）信号和从用于较低载波频率的SSB调制器获得的上边带（USB）信号，以获得调制信号。

公开(公告)号：US20060245514A1

公开(公告)日：2006-11-02

申请号：US10565380

申请日：2004-07-26

申请人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H04L27/02 ,  H04L27/04 ,  H03D1/24

CPC分类号： H04L27/2332 ,  H03C1/60 ,  H03D1/24 ,  H04B1/68 ,  H04L27/04 ,  H04L27/06 ,  H04L27/2053 ,  H04L27/2338

摘要： A modulation apparatus is disclosed that enables great improvements in signal transmission rate in a limited frequency band as compared with conventional modulation schemes. Modulation apparatus 100 has first and second frequency-increasing SSB modulators 110 and 120. The modulators 110 and 120 are configured to have respective carrier frequencies with a difference by a frequency corresponding to the reciprocal of the symbol rate (i.e. fundamental frequency of the input symbol). Adder 130 combines a LSB signal obtained from the SSB modulator 120 set for a higher carrier frequency, and a USB signal obtained from the SSB modulator 110 set for a lower carrier frequency to obtain a modulation signal.

摘要翻译： 公开了一种调制装置，与传统的调制方案相比，能够在有限的频带内实现极大的改善信号传输速率。 调制装置100具有第一和第二增频SSB调制器110和120。 调制器110和120被配置为具有相差载波频率，其频率对应于符号速率的倒数（即，输入符号的基频）。 加法器130组合从针对较高载波频率设置的SSB调制器120获得的LSB信号和从针对较低载波频率设置的SSB调制器110获得的USB信号，以获得调制信号。

公开(公告)号：US09730188B2

公开(公告)日：2017-08-08

申请号：US13816587

申请日：2011-07-29

申请人： Masayuki Hoshino ,  Akihiko Nishio ,  Daichi Imamura

发明人： Masayuki Hoshino ,  Akihiko Nishio ,  Daichi Imamura

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L25/03 ,  H04B7/0456 ,  H04L1/00 ,  H04J13/00 ,  H04J13/18 ,  H04L1/18

CPC分类号： H04L5/0055 ,  H04B7/0456 ,  H04J13/004 ,  H04J13/18 ,  H04L1/0026 ,  H04L1/1819 ,  H04L1/1861 ,  H04L5/0026 ,  H04L5/0051 ,  H04L25/03929 ,  H04L25/03949 ,  H04W72/04 ,  H04W72/042 ,  H04W72/048

摘要： The present invention provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator (103) generates code words (CW) by encoding data, a layer mapping unit (108) places each CW in one or a plurality of layers, a DMRS generator (110) generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator (102) receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator (110) uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.

公开(公告)号：US09712299B2

公开(公告)日：2017-07-18

申请号：US14368767

申请日：2012-01-19

申请人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Daichi Imamura

发明人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Daichi Imamura

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04J13/00 ,  H04J13/18 ,  H04L25/03 ,  H04L27/26 ,  H04B7/024 ,  H04B7/06

CPC分类号： H04L5/0048 ,  H04B7/024 ,  H04B7/0684 ,  H04J13/0003 ,  H04J13/004 ,  H04J13/18 ,  H04J2211/005 ,  H04L5/0025 ,  H04L25/03866 ,  H04L27/2613

摘要： A Method of scrambling reference signals, device and user equipment using the method are provided. In the method, a plurality of layers of reference signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources are scrambled, the method comprising: an orthogonalizing step of multiplying each layer of reference signal selectively by one of a plurality of orthogonal cover codes (OCCs) with the same length wherein the OCC multiplied to a first layer of reference signal can be configured as different from those multiplied to other layers of reference signals; and a scrambling step of multiplying all of symbols obtained from the OCC multiplied to each of the other layers of reference signals by a symbol-common scrambling sequence wherein the symbol-common scrambling sequences can be different from each other for reference signals multiplied by the same OCC.

公开(公告)号：US09398608B2

公开(公告)日：2016-07-19

申请号：US14127323

申请日：2012-06-13

申请人： Ayako Horiuchi ,  Daichi Imamura

发明人： Ayako Horiuchi ,  Daichi Imamura

IPC分类号： H04W72/12 ,  H04L1/00 ,  H04W72/04 ,  H04L5/00

CPC分类号： H04W72/1273 ,  H04L1/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/04

摘要： A transmitter device is capable of preventing error detection of a data resource area as a result of a detection mistake of a control signal. In the device, a control unit sets, as data resource areas, only PRBs that have been imparted with numbers greater than a number that has been imparted to a PRB for which has been set a control resource area for which a downlink assignment control signal (that is, a DL grant) has been mapped. In this manner, at a terminal, if the PRB for which a downlink assignment control signal has been detected can be identified, the data resource area can be identified directly, and therefore, it is possible to prevent error detection for the data resource area as a result of a detection mistake of an uplink assignment control signal.

摘要翻译： 作为控制信号的检测错误的结果，发送装置能够防止数据资源区域的错误检测。 在该设备中，控制单元仅设置已经被赋予已经被赋予已经被设置了下行链路分配控制信号的控制资源区域的PRB的号码的PRB，作为数据资源区域 也就是DL授权）已被映射。 以这种方式，在终端，如果能够识别出已经检测到下行链路分配控制信号的PRB，则可以直接识别数据资源区域，因此可以防止数据资源区域的错误检测为 是上行链路分配控制信号的检测错误的结果。

公开(公告)号：US09350417B2

公开(公告)日：2016-05-24

申请号：US14131886

申请日：2012-09-14

申请人： Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Ayako Horiuchi ,  Atsushi Matsumoto

发明人： Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Ayako Horiuchi ,  Atsushi Matsumoto

IPC分类号： H04B1/715 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04 ,  H04L27/26 ,  H04B1/713

CPC分类号： H04B1/715 ,  H04B1/713 ,  H04L5/0012 ,  H04L5/0051 ,  H04L5/0073 ,  H04L27/2613 ,  H04W28/06 ,  H04W72/042

摘要： To improve the operation and the effect of ICIC by appropriately limiting resources of a reference signal. An SRS generating unit (154) generates an SRS as a reference signal based on SRS information transmitted from a reception unit (156), and a transmission unit (155) transmits the SRS based on the SRS information transmitted from the reception unit (156). At this time, by using information that represents an SRS drop resource as a transmission drop resource set in advance, the transmission of the SRS from the transmission unit (155) is dropped in a resource in which an SRS transmission resource used for transmitting the SRS is an SRS drop resource.

摘要翻译： 通过适当限制参考信号的资源来改善ICIC的操作和效果。 SRS生成部（154）基于从接收部（156）发送的SRS信息，生成作为参照信号的SRS，发送部（155）根据从接收部（156）发送的SRS信息，发送SRS， 。 此时，通过使用表示SRS丢弃资源的信息作为预先设置的传输丢弃资源，在发送SRS的SRS传输资源的资源中丢弃来自传输单元（155）的SRS的传输 是一个SRS drop资源。

公开(公告)号：US09326272B2

公开(公告)日：2016-04-26

申请号：US13818417

申请日：2011-08-19

申请人： Akihiko Nishio ,  Seigo Nakao ,  Ayako Horiuchi ,  Hidenori Matsuo ,  Daichi Imamura

发明人： Akihiko Nishio ,  Seigo Nakao ,  Ayako Horiuchi ,  Hidenori Matsuo ,  Daichi Imamura

IPC分类号： H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00 ,  H04B7/04

CPC分类号： H04W72/0406 ,  H04B7/04 ,  H04L1/0038 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1896 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/042

摘要： Provided are a base station, a terminal whereby erroneous detection of control information can be reduced to prevent the degradation of the system throughput. A PDCCH generation unit (104) forms a downstream allocation control information unit (i.e., DCI) including cyclic redundant check (CRC) bits, which have been masked or scrambled by use of ID information of a terminal (200), and further including a bit sequence (i.e., virtual CRC) known between the terminal (200) and the base station; and an allocation unit (108) and a multiplex unit (109) map the formed DCI to a resource region (i.e., R-PDCCH region) that can be used as any one of a downstream control channel region and a downstream data channel region. That is, the PDCCH generation unit (104) includes the virtual CRC into the DCI only when the DCI addressed to the terminal (200) is mapped to the R-PDCCH region.

摘要翻译： 提供了一种基站，其中可以减少控制信息的错误检测以防止系统吞吐量的恶化。 PDCCH生成单元（104）形成包含循环冗余校验（CRC）比特的下行分配控制信息单元（即，DCI），所述循环冗余校验已被使用终端（200）的ID信息进行了掩蔽或加密，并且还包括 在终端（200）和基站之间已知的比特序列（即虚拟CRC）; 以及分配单元（108）和复用单元（109）将形成的DCI映射到可以用作下游控制信道区域和下游数据信道区域中的任一个的资源区域（即，R-PDCCH区域）。 也就是说，仅当寻址到终端（200）的DCI被映射到R-PDCCH区域时，PDCCH生成单元（104）才将虚拟CRC包括到DCI中。

公开(公告)号：US09306712B2

公开(公告)日：2016-04-05

申请号：US14115325

申请日：2011-09-29

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

IPC分类号： H04L5/00 ,  H04L25/02

CPC分类号： H04W72/044 ,  H04L5/0016 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/121

摘要： Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced.

摘要翻译： 提供了使用该方法加扰信号，传输点设备和用户设备的方法。 该方法用于对具有相同时间和频率资源的至少一层资源块的预定无线电资源分配的信号进行加扰，包括以下步骤：通过较高层信令向用户设备发送ID表，ID表为 整个ID空间的子集，并包含用户设备的可用ID; 通过物理层信令或UE特定的较高层信令通知用户设备将要使用的ID表中的ID; 基于通知的ID生成随机种子; 通过随机种子初始化加扰序列; 并用初始化的加扰序列对信号进行加扰。 本发明的方法通过组合物理层信令和较高层信令，可以将所使用的组ID和盲检测空间通知给UE，使得UE能够进行盲检，信令开销降低。