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    • 52. 发明申请
    • WIRELESS COMMUNICATION SYSTEM AND DOWNLINK RECEIVING POWER DETECTION METHOD THEREFOR
    • 无线通信系统和下行链路接收功率检测方法
    • US20120113842A1
    • 2012-05-10
    • US13266292
    • 2010-04-09
    • Zhi ZhangMing XuMasayuki HoshinoDaichi Imamura
    • Zhi ZhangMing XuMasayuki HoshinoDaichi Imamura
    • H04W24/00
    • 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之间维持正交性,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。
    • 53. 发明授权
    • Sequence allocating method, transmitting method and wireless mobile station device
    • 序列分配方法,发送方法和无线移动台设备
    • US08175609B2
    • 2012-05-08
    • US13082059
    • 2011-04-07
    • Takashi IwaiDaichi ImamuraTomofumi TakataYoshihiko Ogawa
    • Takashi IwaiDaichi ImamuraTomofumi TakataYoshihiko Ogawa
    • H04Q7/20
    • H04W72/0446H04J13/0055H04J13/0062H04J13/22H04W72/0453H04W72/0466
    • It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) in a step (ST103), setting a sequence length (N) corresponding to RB number (m) in a step (ST104), judging whether |r/N−rb/Nb|=Xth(m) is satisfied in a step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) in a step (ST107) if the judgment is positive, and allocating the sequence group (rb) to the same cell in a step (ST112).
    • 本发明的目的是提供一种在保持Zadoff-Chu序列的数量以构成序列组的同时,使得可以减少不同顺序组之间的相关性的序列分配方法。 该方法包括以下步骤:在步骤(ST101)中设置标准序列长度(Nb)和标准序列号(rb)的标准序列,根据RB号设置阈值(Xth(m)) 在步骤(ST103)中,在步骤(ST104)中设定与RB号(m)对应的序列长度(N)的步骤(ST103),判断是否满足| r / N-rb / Nb | = Xth(m) 步骤(ST106),如果判断为肯定,则在步骤(ST107)中包括序列号(rb)中的序列号(r)和序列长度(N)的多个Zadoff-Chu序列,并且分配序列 组(rb)到步骤中的相同单元(ST112)。
    • 54. 发明申请
    • WIRELESS TRANSMISSION APPARATUS AND TRANSMISSION POWER CONTROL METHOD
    • 无线传输装置和传输功率控制方法
    • US20120094709A1
    • 2012-04-19
    • US13375386
    • 2010-06-17
    • Yoshihiko OgawaKenichi MiyoshiAkihiko NishioDaichi ImamuraSeigo Nakao
    • Yoshihiko OgawaKenichi MiyoshiAkihiko NishioDaichi ImamuraSeigo Nakao
    • H04W52/04
    • H04L27/2602H04B7/0697H04L27/3411H04W52/16H04W52/243H04W52/325H04W52/42
    • Disclosed are a wireless transmission apparatus and transmission power control method which improve the error rate characteristics of data signals even when the number of streams of data signals increases, without increasing the amount of signaling. The relationship between the number of streams of data signals in each antenna (201-1, 201-2) and the data signal and pilot-signal transmission power ratio at each antenna (201-1,201-2) is stored. Specifically, a relationship where the data signal and pilot signal transmission power ratio at each antenna increases as the number of streams of data signals at each antenna increases is stored. A transmission power control unit (205) determines the data signal and pilot signal transmission power ratio on the basis of the information of the number of streams of data signals at each antenna (201-1, 201-2) that were output from a decoding unit (204), controls the transmission power of the pilot signals on the basis of the determined transmission power ratio, and outputs to a multiplexing unit (210).
    • 公开了即使当数据信号流的数量增加而不增加信令量时,也可以提高数据信号的误码率特性的无线发送装置和发送功率控制方法。 存储每个天线(201-1,201-2)中的数据信号流数与每个天线(201-1,201-2)之间的数据信号和导频信号发送功率比之间的关系。 具体地说,存储每个天线上的数据信号和导频信号发送功率比随着每个天线的数据信号数量的增加而增加的关系。 发送功率控制部(205)基于从解码(201-1,201-2)输出的每个天线(201-1,201-2)的数据信号流的信息,确定数据信号和导频信号发送功率比 单元(204)根据确定的发送功率比来控制导频信号的发送功率,并输出到复用单元(210)。
    • 57. 发明申请
    • TERMINAL DEVICE AND SIGNAL MULTIPLEXING CONTROL METHOD
    • 终端设备和信号多路复用控制方法
    • US20120069826A1
    • 2012-03-22
    • US13375899
    • 2010-06-08
    • Seigo NakaoDaichi Imamura
    • Seigo NakaoDaichi Imamura
    • H04W72/04
    • H04L5/0053H04L5/0007H04L5/001H04W72/04
    • Provided is a terminal device which achieves an improvement in the quality of uplink data while the power consumption of the terminal is suppressed even when the uplink data and a response signal are simultaneously transmitted in carrier aggregation. Specifically provided is a terminal device (200) which communicates with a base station device using a unit band group configured from N (N is a natural number of 2 or more) downlink unit bands and uplink unit bands, wherein when only uplink assignment control information is received in a first downlink unit band of the unit band group and only downlink assignment control information is received in a second downlink unit band different from the first downlink unit band when uplink data and a response signal are transmitted within the same transmission unit time, a control unit (208); time-multiplexes and transmits response signals with respect to the uplink data and downlink data transmitted through a downlink data channel indicated by the downlink assignment control information received in the second downlink unit band, through an uplink data channel indicated by the uplink assignment control information received in the first downlink unit band.
    • 提供一种即使在载波聚合中同时发送上行数据和响应信号的同时也能够抑制上行数据的质量的提高的终端装置。 具体提供的是使用由N(N是2以上的自然数)个下行单位频带和上行单位频带构成的单位频带组与基站装置进行通信的终端装置(200),其中,当只有上行链路分配控制信息 在单位频带组的第一下行链路单位频带中被接收,并且当在相同的发送单位时间内发送上行链路数据和响应信号时,仅在与第一下行链路单位频带不同的第二下行链路单位频带中接收下行链路分配控制信息, 控制单元(208); 通过接收的上行链路分配控制信息指示的上行链路数据信道,对通过下行链路数据信道指示的下行链路数据信道发送的上行链路数据和下行链路数据进行时间复用和发送。 在第一下行链路单元频带中。