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    • 5. 发明授权
    • Wireless communication device and wireless communication method
    • 无线通信设备和无线通信方式
    • US09106911B2
    • 2015-08-11
    • US13635531
    • 2011-03-18
    • Takaaki KishigamiDaichi ImamuraIsamu Yoshii
    • Takaaki KishigamiDaichi ImamuraIsamu Yoshii
    • H04N7/12H04N11/02H04N11/04H04N19/114H04N19/196H04N19/149
    • H04N19/114H04N19/149H04N19/196
    • When controlling transmission channel parameters and video encoding parameters so as to be linked to each other in video transmission, the video quality on the receiving side is further improved. As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the predicted value of the PHY transmission rate is larger than a determined reference value and increasing the GOP size when the predicted value of the PHY transmission rate is equal to or less than the determined reference value.
    • 当在视频传输中控制传输信道参数和视频编码参数以彼此链接时,接收侧的视频质量进一步提高。 作为控制视频编码单元中的视频编码的视频编码参数的参数控制单元以及与频道编码/调制单元中的纠错编码和调制相关的传输信道参数,以便彼此链接,交叉层速率控制单元 被提供。 当PHY传输速率的预测值大于所确定的参考值时,跨层速率控制单元通过减小GOP大小来根据传播变化执行GOP大小的可变控制,并且当PHY的预测值 传输速率等于或小于所确定的参考值。
    • 6. 发明授权
    • Relay station, base station and communication method
    • 中继站,基站和通信方式
    • US09065527B2
    • 2015-06-23
    • US13819292
    • 2012-02-08
    • Masayuki HoshinoHidetoshi SuzukiAyako HoriuchiDaichi Imamura
    • Masayuki HoshinoHidetoshi SuzukiAyako HoriuchiDaichi Imamura
    • H04W88/04H04W72/04H04L27/28H04B7/155
    • H04B7/155H04L27/28H04W72/04H04W88/04
    • Provided is a relay station that is capable of improving PDSCH channel estimation accuracy, even in a case where a DL grant is provided that gives instructions for downlink data allocation for R-PDCCH. In this device, a signal separation unit (203) receives, of the control information and data and reference signals sent from a base station (100), the reference signals disposed in a first region and a second region within a pre-coding RB group (PRG) comprising one or more PRBs of the plurality of PRBs constituting a divided frequency region; the control information disposed in the first region; and the data disposed in the second region. A demodulation unit (204) demodulates the data on the basis of the reference signals. The demodulation unit (204) demodulates the data using the reference signals disposed in the second region.
    • 即使在提供给R-PDCCH的下行链路数据分配指令的DL授权的情况下,也能够提高PDSCH信道估计精度。 在该装置中,信号分离单元(203)接收从基站(100)发送的控制信息和数据以及参考信号中设置在预编码RB组内的第一区域和第二区域中的参考信号 (PRG),包括构成分频区域的多个PRB中的一个或多个PRB; 所述控制信息设置在所述第一区域中; 以及设置在第二区域中的数据。 解调单元(204)根据参考信号对数据进行解调。 解调单元(204)使用布置在第二区域中的参考信号来解调数据。
    • 7. 发明授权
    • Wireless communication system and downlink receiving power detection method therefor
    • 无线通信系统及其下行接收功率检测方法
    • US09049674B2
    • 2015-06-02
    • US13266292
    • 2010-04-09
    • Zhi ZhangMing XuMasayuki HoshinoDaichi Imamura
    • Zhi ZhangMing XuMasayuki HoshinoDaichi Imamura
    • H04B7/005H04W52/34
    • H04B7/0626H04L5/0051H04W52/343H04W72/0473
    • A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased.
    • 公开了一种用于检测系统中的下行链路接收功率的无线通信系统和方法。 系统中的N个小区通过使用相同的时间 - 频率资源的N个资源块分别向至少一个接收终端发送数据; 在每个资源块中设置相应小区的多信道状态信息参考信号(CSI-RS),并且在所有小区的CSI-RS之间保持正交性,其中N是大于1的整数。所述方法包括: 用于指示接收功率的附加解调参考信号(DM-RS)被设置在与另一个小区的资源块中的CSI-RS集相对应的第一小区的资源块中的删余位置; 并且根据所述附加DM-RS检测所述第一小区的接收功率。 通过使用该方法,可以检测N个小区中的单个小区的接收功率,并且不增加系统开销。
    • 8. 发明授权
    • Wireless communication terminal apparatus, wireless communication base station apparatus, and modulation method
    • 无线通信终端装置,无线通信基站装置以及调制方式
    • US09031011B2
    • 2015-05-12
    • US13125436
    • 2009-10-30
    • Akihiko NishioSeigo NakaoDaichi ImamuraMasayuki Hoshino
    • Akihiko NishioSeigo NakaoDaichi ImamuraMasayuki Hoshino
    • H04W4/00H04J11/00H04J13/00H04L1/00H04L1/18H04L5/00
    • H04J11/00H04J13/0059H04L1/0046H04L1/1861H04L5/0007H04L5/001H04L5/0053H04L5/0055
    • A wireless communication terminal apparatus wherein even in a case of performing a wideband transmission using only a downstream line, CCE assignment can be flexibly performed without any collisions of ACK and NACK signals among a plurality of unit bands. In a wireless communication terminal apparatus (200) using a plurality of downstream unit bands to perform communications, a PDCCH receiving unit (207) blind-decodes CCE in a search space of the plurality of downstream unit bands, thereby acquiring resource assignment information of downstream line data addressed to the wireless communication terminal apparatus (200), and a modulating unit (209) modulates a response signal, which is responsive to the downstream line data in particular downstream unit bands, based on a modulation scheme in which the number of modulation multi-values corresponds to the number of those particular ones of the plurality of downstream unit bands in which the resource assignment information addressed to the wireless communication terminal apparatus (200) is assigned to CCE of the same CCE number.
    • 一种无线通信终端装置,其中即使在仅使用下游线进行宽带传输的情况下,也可以灵活地执行CCE分配,而不会在多个单位频带之间发生ACK和NACK信号的任何冲突。 在使用多个下行单位频带进行通信的无线通信终端装置(200)中,PDCCH接收单元(207)对多个下行单位频带的搜索空间中的CCE进行盲解码,从而获取下行单元频带的资源分配信息 寻址到无线通信终端装置(200)的线路数据,以及调制单元(209),其基于调制方式来调制响应于下游线路数据特别是下游单位频带的响应信号,其中调制次数 多值对应于将寻址到无线通信终端装置(200)的资源分配信息分配给相同CCE号码的CCE的多个下游单位频带中的那些特定个数的数量。