公开(公告)号：US08605614B2

公开(公告)日：2013-12-10

申请号：US12997845

申请日：2009-06-22

申请人： Akihiko Nishio ,  Daichi Imamura ,  Atsushi Sumasu ,  Takashi Iwai

发明人： Akihiko Nishio ,  Daichi Imamura ,  Atsushi Sumasu ,  Takashi Iwai

IPC分类号： H04L1/00 ,  H04L12/26

CPC分类号： H04W52/365 ,  H04J11/0069 ,  H04L5/0028 ,  H04L27/2614 ,  H04W52/281

摘要： Disclosed are a control signal transmitting method and mobile terminal device capable of switching between a plurality of terminal communication modes having different maximum transmissible power values with a high degree of precision, while suppressing increases in signaling overhead. In a mobile station (100), a PHR transmission evaluating unit (115) sends, to a base station (200), power head room (PHR) information for the SC-FDMA mode or the OFDMA mode during a reporting period, and a maximum transmission power information setting unit (101) provides notification to the base station (200) of difference information between the transmission modes prior to the beginning of the reporting period. An increase in signaling overhead can be prevented because only a single set of PHR information among the information for the plurality of terminal transmission modes is reported in this way. Providing notification of difference information between the transmission modes enables the base station (200) to calculate the PHR of each of the terminal transmission modes without receiving PHR information for all of the terminal transmission modes. This therefore enables highly accurate switching among the terminal transmission modes with appropriate timing.

摘要翻译： 公开了一种控制信号发送方法和移动终端装置，其能够在抑制信令开销增加的同时，以高精度切换具有不同最大发送功率值的多个终端通信模式。 在移动台（100）中，PHR发送评价部（115）在报告期间向基站（200）发送用于SC-FDMA模式或OFDMA模式的功率头室（PHR）信息，以及 最大发送功率信息设置单元（101）在报告周期开始之前向基站（200）通知发送模式之间的差异信息。 可以防止信令开销的增加，因为以这种方式报告用于多个终端传输模式的信息中的仅一组PHR信息。 在发送模式之间提供差异信息的通知使得基站（200）能够计算每个终端传输模式的PHR，而不接收所有终端传输模式的PHR信息。 因此，能够在适当的时刻使终端发送模式之间进行高精度的切换。

公开(公告)号：US20110164519A1

公开(公告)日：2011-07-07

申请号：US12997845

申请日：2009-06-22

申请人： Akihiko Nishio ,  Daichi Imamura ,  Atsushi Sumasu ,  Takashi Iwai

发明人： Akihiko Nishio ,  Daichi Imamura ,  Atsushi Sumasu ,  Takashi Iwai

IPC分类号： H04L12/26

CPC分类号： H04W52/365 ,  H04J11/0069 ,  H04L5/0028 ,  H04L27/2614 ,  H04W52/281

摘要： Disclosed are a control signal transmitting method and mobile terminal device capable of switching between a plurality of terminal communication modes having different maximum transmissible power values with a high degree of precision, while suppressing increases in signaling overhead. In a mobile station (100), a PHR transmission evaluating unit (115) sends, to a base station (200), power head room (PHR) information for the SC-FDMA mode or the OFDMA mode during a reporting period, and a maximum transmission power information setting unit (101) provides notification to the base station (200) of difference information between the transmission modes prior to the beginning of the reporting period. An increase in signaling overhead can be prevented because only a single set of PHR information among the information for the plurality of terminal transmission modes is reported in this way. Providing notification of difference information between the transmission modes enables the base station (200) to calculate the PHR of each of the terminal transmission modes without receiving PHR information for all of the terminal transmission modes. This therefore enables highly accurate switching among the terminal transmission modes with appropriate timing.

摘要翻译： 公开了一种控制信号发送方法和移动终端装置，其能够在抑制信令开销增加的同时，以高精度切换具有不同最大发送功率值的多个终端通信模式。 在移动台（100）中，PHR发送评价部（115）在报告期间向基站（200）发送用于SC-FDMA模式或OFDMA模式的功率头室（PHR）信息，以及 最大发送功率信息设置单元（101）在报告周期开始之前向基站（200）通知发送模式之间的差异信息。 可以防止信令开销的增加，因为以这种方式报告用于多个终端传输模式的信息中的仅一组PHR信息。 在发送模式之间提供差异信息的通知使得基站（200）能够计算每个终端传输模式的PHR，而不接收所有终端传输模式的PHR信息。 因此，能够在适当的时刻使终端发送模式之间进行高精度的切换。

公开(公告)号：US20100041413A1

公开(公告)日：2010-02-18

申请号：US12521292

申请日：2007-12-25

申请人： Atsushi Sumasu ,  Shutai Okamura ,  Katsuhiko Hiramatsu ,  Masayuki Orihashi ,  Ayako Horiuchi ,  Daichi Imamura ,  Yoshihiko Ogawa

发明人： Atsushi Sumasu ,  Shutai Okamura ,  Katsuhiko Hiramatsu ,  Masayuki Orihashi ,  Ayako Horiuchi ,  Daichi Imamura ,  Yoshihiko Ogawa

IPC分类号： H04W72/00 ,  H04W4/00

CPC分类号： H04W52/367 ,  H04L1/0026 ,  H04L1/1893 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/143 ,  H04W52/0229 ,  Y02D70/1262 ,  Y02D70/164

摘要： It is possible to provide a radio communication system, a radio base station device, and a radio terminal device capable of reducing the power consumption in a radio terminal device without thinning pilot signals used for measuring upstream line quality. In the radio base station device (100) used in a radio communication system using different frequency bands for the upstream line and the downstream line, an upstream line pilot generation unit (115) forms a CQI measuring pilot signal and an upstream line RF unit (105) transmits the communication quality measuring pilot signal by using the upstream line use frequency band in the upstream line pilot transmission section. Thus, the upstream communication quality measuring pilot signal used by the radio base station device (100) to measure the line quality is transmitted by using the upstream line frequency band and accordingly, it is possible to reduce the power consumption in the radio terminal device.

摘要翻译： 可以提供一种能够减少无线终端装置的功耗而不减薄用于测量上游线路质量的导频信号的无线电通信系统，无线电基站装置和无线电终端装置。 在上行线路和下游线路使用了不同频带的无线通信系统中使用的无线基站装置（100）中，上游线路导频生成部（115）形成CQI测定导频信号和上行线路RF单元 105）通过使用上游线路导频发送部中的上游线路使用频带来发送通信质量测量导频信号。 因此，通过使用上游线路频带来发送无线基站装置（100）使用的测量线路质量的上行通信质量测量导频信号，因此能够降低无线终端装置的功耗。

公开(公告)号：US09077472B2

公开(公告)日：2015-07-07

申请号：US13639214

申请日：2011-03-23

申请人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

发明人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

IPC分类号： H04L5/00 ,  H04L27/26 ,  H04W80/04 ,  H04W88/06 ,  H04W28/04 ,  H04W72/04 ,  H04J11/00

CPC分类号： H04J11/0023 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0048

摘要： Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS.

摘要翻译： 提供能够减少CSI-RS的失真和与其他CSI-RS的干扰的无线通信装置和无线通信方法。 根据本发明的无线通信装置包括：生成CSI-RS的CSI-RS生成部，将CSI-RS布置在位于多个OFDM符号之间的单个或多个连续的OFDM符号中的配置部， 其中除了CSI-RS之外的信号被布置，并且与排列有CSI-RS以外的信号的多个OFDM符号相邻; 以及发送部，其发送由所述配置部所配置的CSI-RS以外的信号和包含所述CSI-RS的发送信号。

公开(公告)号：US20130028217A1

公开(公告)日：2013-01-31

申请号：US13639214

申请日：2011-03-23

申请人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

发明人： Atsushi Sumasu ,  Daichi Imamura ,  Masayuki Hoshino ,  Yasuaki Yuda

IPC分类号： H04W72/04

CPC分类号： H04J11/0023 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0048

摘要： Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS.

摘要翻译： 提供能够减少CSI-RS的失真和与其他CSI-RS的干扰的无线通信装置和无线通信方法。 根据本发明的无线通信装置包括：生成CSI-RS的CSI-RS生成部，将CSI-RS布置在位于多个OFDM符号之间的单个或多个连续的OFDM符号中的配置部， 其中除了CSI-RS之外的信号被布置，并且与排列有CSI-RS以外的信号的多个OFDM符号相邻; 以及发送部，其发送由所述配置部所配置的CSI-RS以外的信号和包含所述CSI-RS的发送信号。

公开(公告)号：US08559965B2

公开(公告)日：2013-10-15

申请号：US12521292

申请日：2007-12-25

申请人： Atsushi Sumasu ,  Shutai Okamura ,  Katsuhiko Hiramatsu ,  Masayuki Orihashi ,  Ayako Horiuchi ,  Daichi Imamura ,  Yoshihiko Ogawa

发明人： Atsushi Sumasu ,  Shutai Okamura ,  Katsuhiko Hiramatsu ,  Masayuki Orihashi ,  Ayako Horiuchi ,  Daichi Imamura ,  Yoshihiko Ogawa

IPC分类号： H04W72/00

CPC分类号： H04W52/367 ,  H04L1/0026 ,  H04L1/1893 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/143 ,  H04W52/0229 ,  Y02D70/1262 ,  Y02D70/164

摘要： It is possible to provide a radio communication system, a radio base station device, and a radio terminal device capable of reducing the power consumption in a radio terminal device without thinning pilot signals used for measuring upstream line quality. In the radio base station device (100) used in a radio communication system using different frequency bands for the upstream line and the downstream line, an upstream line pilot generation unit (115) forms a CQI measuring pilot signal and an upstream line RF unit (105) transmits the communication quality measuring pilot signal by using the upstream line use frequency band in the upstream line pilot transmission section. Thus, the upstream communication quality measuring pilot signal used by the radio base station device (100) to measure the line quality is transmitted by using the upstream line frequency band and accordingly, it is possible to reduce the power consumption in the radio terminal device.

摘要翻译： 可以提供一种能够减少无线终端装置的功耗而不减薄用于测量上游线路质量的导频信号的无线电通信系统，无线电基站装置和无线电终端装置。 在上行线路和下游线路使用了不同频带的无线通信系统中使用的无线基站装置（100）中，上游线路导频生成部（115）形成CQI测定导频信号和上行线路RF单元 105）通过使用上游线路导频发送部中的上游线路使用频带来发送通信质量测量导频信号。 因此，通过使用上游线路频带来发送由无线基站装置（100）使用的测量线路质量的上行通信质量测量导频信号，因此能够降低无线终端装置的功耗。

公开(公告)号：US08542770B2

公开(公告)日：2013-09-24

申请号：US12673560

申请日：2008-08-15

申请人： Seigo Nakao ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Katsuhiko Hiramatsu

IPC分类号： H04L27/00

CPC分类号： H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0682 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2626 ,  H04W74/002 ,  H04W88/02 ,  H04W88/08

摘要： Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit (103) which maps a data signal after modulation to a virtual antenna (0) and a virtual antenna (1); a phase inversion unit (104) which inverts the phase of S0 transmitted from an antenna port (2) in synchronization with a phase inversion unit (105) between the odd-number slot and the even-number slot; the phase inversion unit (105) which inverts the phase of R0 transmitted from the antenna port (2); a phase inversion unit (113) which inverts the phase of S1 transmitted from an antenna port (3) in synchronization with a phase inversion unit (114); and the phase inversion unit (114) which inverts the phase of R1 transmitted from an antenna port (3).

摘要翻译： 提供了即使在使用虚拟天线时也能够分离天线端口的传播路径并提高信道估计精度的无线通信装置。 该装置包括：将调制后的数据信号映射到虚拟天线（0）和虚拟天线（1）的映射单元（103）; 相位反转单元，其与奇数槽和偶数槽之间的相位反转单元同步地反转从天线端口（2）发送的S0的相位; 相位反转单元（105），其使从天线端口（2）发送的R0的相位反转; 相位反转部（113），其与相位反转部（114）同步地使从天线端口（3）发送的S1的相位反相; 以及反转从天线端口（3）发送的R1的相位的相位反转单元（114）。

公开(公告)号：US20110216845A1

公开(公告)日：2011-09-08

申请号：US12673560

申请日：2008-08-15

申请人： Seigo Nakao ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Masayuki Hoshino ,  Atsushi Sumasu ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/02

CPC分类号： H04L5/0048 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0682 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2626 ,  H04W74/002 ,  H04W88/02 ,  H04W88/08

摘要： Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit (103) which maps a data signal after modulation to a virtual antenna (0) and a virtual antenna (1); a phase inversion unit (104) which inverts the phase of S0 transmitted from an antenna port (2) in synchronization with a phase inversion unit (105) between the odd-number slot and the even-number slot; the phase inversion unit (105) which inverts the phase of R0 transmitted from the antenna port (2); a phase inversion unit (113) which inverts the phase of S1 transmitted from an antenna port (3) in synchronization with a phase inversion unit (114); and the phase inversion unit (114) which inverts the phase of R1 transmitted from an antenna port (3).

摘要翻译： 提供了即使在使用虚拟天线时也能够分离天线端口的传播路径并提高信道估计精度的无线通信装置。 该装置包括：将调制后的数据信号映射到虚拟天线（0）和虚拟天线（1）的映射单元（103）; 相位反转单元，其与奇数槽和偶数槽之间的相位反转单元同步地反转从天线端口（2）发送的S0的相位; 相位反转单元（105），其使从天线端口（2）发送的R0的相位反转; 相位反转部（113），其与相位反转部（114）同步地使从天线端口（3）发送的S1的相位反相; 以及反转从天线端口（3）发送的R1的相位的相位反转单元（114）。

公开(公告)号：US08942176B2

公开(公告)日：2015-01-27

申请号：US13704010

申请日：2011-05-19

申请人： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

发明人： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

IPC分类号： H04W4/00 ,  H04J3/06

CPC分类号： H04W52/0216 ,  H04B17/309 ,  H04J11/005 ,  H04J11/0053 ,  H04J11/0056 ,  H04L5/0007 ,  H04L5/005 ,  H04L12/18 ,  H04L12/189 ,  H04L27/12 ,  H04L27/2611 ,  H04W24/08 ,  H04W52/0206 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/25

摘要： The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to 49, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

摘要翻译： 在多个小区中执行小区间协作发送/接收等时，能够保持诸如CSI-RS的参考信号的发送，同时保持省电效果。 为了实现小区间协作发送接收，通过CSI-RS生成单元生成用于估计通信线路的空间传播路径的状态的CSI-RS，将CSI-RS配置在 预定的子帧由配置单元发送。 此时，当帧具有十个子帧＃0至49时，CSI-RS被布置在子帧＃4和＃9中，子帧＃不是不能发送CSI-RS的子帧＃0和＃5的子帧，并且是 执行不连续通信（扩展小区DTX）时能够作为MBSFN子帧的子帧以外的子帧，以实现省电并被发送。

公开(公告)号：US20100254485A1

公开(公告)日：2010-10-07

申请号：US12746750

申请日：2008-12-12

申请人： Isamu Yoshii ,  Atsushi Sumasu ,  Tomohiro Imai ,  Hidenori Kayama ,  Hidenori Matsuo ,  Yoshiko Saito ,  Seigo Nakao ,  Shinsuke Takaoka

发明人： Isamu Yoshii ,  Atsushi Sumasu ,  Tomohiro Imai ,  Hidenori Kayama ,  Hidenori Matsuo ,  Yoshiko Saito ,  Seigo Nakao ,  Shinsuke Takaoka

IPC分类号： H04L27/00

CPC分类号： H04B7/0671 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0684 ,  H04B7/10

摘要： It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which communicates with the MIMO transmission device. The MIMO transmission device (100) includes phase adjustment units (130-1, 130-2) which are controlled by a pilot transmission control unit (170) to multiply parallel pilot signals by a phase adjustment coefficient group so as to adjust the pilot signal transmission timing. The pilot transmission control unit (170) differentiates the order of the transmitting antennas in accordance with the pilot transmission timing between an even-number subcarrier group and an odd-number subcarrier group. At a reception side, a path not influenced by the inter-path interference is extracted for each of the combinations of the transmitting antennas and the subcarrier groups. A channel estimation value is calculated according to the extracted path so as to improve the channel estimation accuracy.

摘要翻译： 可以提供一种可以计算准确的信道估计值的新型导频传输方法，使用导频传输方法的MIMO传输装置和与MIMO传输装置进行通信的MIMO接收装置。 MIMO传输设备（100）包括由导频传输控制单元（170）控制以将并行导频信号乘以相位调整系数组的相位调整单元（130-1,130-2），以便调整导频信号 传输时机。 导频传输控制单元根据偶数子载波组和奇数子载波组之间的导频发送定时来区分发送天线的顺序。 在接收侧，针对发送天线和子载波组的每个组合提取不受路径间干扰影响的路径。 根据提取的路径计算信道估计值，以提高信道估计精度。