Radio reception apparatus and radio reception method
    61.
    发明授权
    Radio reception apparatus and radio reception method 有权
    无线接收装置和无线接收方法

    公开(公告)号:US08300521B2

    公开(公告)日:2012-10-30

    申请号:US13284764

    申请日:2011-10-28

    Abstract: A radio transmission apparatus performs communications with high transmission efficiency. In this apparatus, a modulator modulates data and outputs to a first spreader. A second modulator modulates data under a modulation scheme having a higher M-ary number than the first modulator and outputs the modulated data to a second spreader. The first spreader spreads the data and outputs the spread data to a frequency domain mapping section. The second spreader spreads the data and outputs the spread data to a time domain mapping section. A frequency domain mapping section maps chips with spread data on subcarriers in the frequency domain and outputs the data with chips mapped on subcarriers to an IFFT section. The time domain mapping section maps chips with spread data on subcarriers in the time domain and outputs the data with chips mapped on subcarriers to the IFFT section.

    Abstract translation: 无线发送装置以高传输效率进行通信。 在该装置中,调制器调制数据并将其输出到第一扩展器。 第二调制器在具有比第一调制器更高的M值的调制方案下调制数据,并将调制的数据输出到第二扩展器。 第一扩展器扩展数据并将扩展数据输出到频域映射部分。 第二扩展器扩展数据并将扩展数据输出到时域映射部分。 频域映射部将具有频域上的子载波的扩展数据的芯片进行映射,并将具有映射在子载波上的码片的数据输出到IFFT部。 时域映射部将具有在时域中的子载波上的扩展数据的芯片映射,并将与副载波对应的芯片的数据输出到IFFT部。

    Relay station, mobile station, and relay transmission method in mobile communication system
    62.
    发明授权
    Relay station, mobile station, and relay transmission method in mobile communication system 有权
    移动通信系统中的中继站,移动台和中继传输方式

    公开(公告)号:US08265551B2

    公开(公告)日:2012-09-11

    申请号:US12669148

    申请日:2008-07-18

    CPC classification number: H04W16/26 H04B7/15507 H04W16/24 H04W48/08 H04W84/047

    Abstract: Provided is a mobile communication system which includes a plurality of RAT (Radio Access Technology) and can eliminate the need of a control channel for reporting RAT information so as to prevent congestion or shortage of the control channel capacity. In the mobile communication system, an LTE relay station (30) has a cover area (31) identical to a cover area (21) owned by a WLAN host station (20) and relays/transmits the signal received from an LTE base station (10) to a mobile station (40) in the cover area (31). The LTE relay station (30) adds to the signal received from the LTE base station (10), one of the offsets: a frequency offset, a time offset, and a power offset as information indicating that the mobile station (40) which receives a relay signal from the local station is located in the cover area (21) of WLAN and transmits the signal after offset addition to the mobile station (40) located in the cover area (31) (i.e., the cover area (21)).

    Abstract translation: 提供了包括多个RAT(无线电接入技术)的移动通信系统,并且可以消除用于报告RAT信息的控制信道的需要,以防止控制信道容量的拥塞或不足。 在移动通信系统中,LTE中继站(30)具有与WLAN主站(20)拥有的覆盖区域(21)相同的覆盖区域(31),并且中继/发送从LTE基站接收的信号 10)到覆盖区域(31)中的移动站(40)。 LTE中继站(30)将从LTE基站(10)接收到的信号中的一个相加,作为指示接收到的移动站(40)的信息的偏移中的一个:频率偏移,时间偏移和功率偏移 来自本地站的中继信号位于WLAN的覆盖区域(21)中,并且将偏移相加后的信号发送到位于覆盖区域(31)(即,覆盖区域(21))中的移动站(40) 。

    Radio transmission apparatus and radio transmission method
    64.
    发明授权
    Radio transmission apparatus and radio transmission method 有权
    无线传输装置和无线传输方法

    公开(公告)号:US08208488B2

    公开(公告)日:2012-06-26

    申请号:US12490231

    申请日:2009-06-23

    Inventor: Kenichi Miyoshi

    Abstract: Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section. The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

    Abstract translation: 存储在缓冲器中的数据流由调制部分调制。 乘数将从调制部分输出的信号乘以重量控制部分的重量输出。 从乘法器输出的信号由加法部分相加,经过无线电传送部分的无线电传输处理并通过天线发送。 缓冲器控制部分基于从重传计数检测部分输出的重传计数来控制缓冲器。 每当重发数据时,权重控制部分将与先前发送时的权重不同的权重输出到乘法器。 即使无线电信号的传播路径环境的时间变化较慢,也能够提高数据重发时的分集增益。

    RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD
    65.
    发明申请
    RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD 有权
    无线电通信基站装置和无线电通信方法

    公开(公告)号:US20120120911A1

    公开(公告)日:2012-05-17

    申请号:US13360472

    申请日:2012-01-27

    Abstract: A base station apparatus is provided, which includes a generator configured to generate a synchronization signal and a transmitter configured to transmit the generated synchronization signal. The generator is configured to generate a synchronization signal to be mapped on a subcarrier included in one of a plurality of frequency resource candidates that are separated by an interval, which is a common multiple of a determined frequency spacing and a subcarrier spacing between contiguous subcarriers, wherein the subcarrier spacing does not have a value that is a divisor of the determined frequency spacing.

    Abstract translation: 提供了一种基站装置,其包括被配置为产生同步信号的发生器和被配置为发送所生成的同步信号的发送器。 发生器被配置为产生要被映射在包括在多个频率资源候选中的一个中的子载波的同步信号,所述副载波被间隔隔开,间隔是确定的频率间隔的公倍数和连续的子载波之间的子载波间隔, 其中所述子载波间隔不具有作为所确定的频率间隔的除数的值。

    WIRELESS COMMUNICATION RELAY STATION APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION
    66.
    发明申请
    WIRELESS COMMUNICATION RELAY STATION APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION 有权
    无线通信中继站装置,无线通信基站装置,无线通信移动站

    公开(公告)号:US20120093064A1

    公开(公告)日:2012-04-19

    申请号:US13264197

    申请日:2010-04-26

    Abstract: There is provided a wireless communication relay station apparatus and a wireless communication base station apparatus capable of allocating resources dynamically to each apparatus in accordance with traffic. A wireless communication relay station apparatus according to the invention includes a receiver that receives data from the wireless communication base station apparatus or the wireless communication mobile station apparatus, and a selector that selects data, within an uplink subframe or a downlink subframe, from: first data to be relayed from the own apparatus to the wireless communication base station apparatus; second data to be relayed from the own apparatus to the wireless communication mobile station apparatus; third data to be relayed from the wireless communication base station apparatus to the own apparatus; and fourth data to be relayed from the wireless communication mobile station apparatus to the own apparatus. The receiver receives allocation information for switching transmission/reception in the own apparatus from the wireless communication mobile station apparatus within an uplink subframe or a downlink subframe. The selector switches the first data and the fourth data within the uplink subframe in accordance with the allocation information received by the receiver, or the selector switches the second data and the third data within the downlink subframe in accordance with the allocation information received by the receiver.

    Abstract translation: 提供一种无线通信中继站装置和无线通信基站装置,其能够根据流量动态地向各个装置分配资源。 根据本发明的无线通信中继站装置包括从无线通信基站装置或无线通信移动站装置接收数据的接收机,以及在上行链路子帧或下行链路子帧内从下列子帧选择数据的选择器: 要从本装置中继到无线通信基站装置的数据; 第二数据将从本装置中继到无线通信移动站装置; 将第三数据从无线通信基站装置中继到本装置; 以及要从无线通信移动台装置向本装置中继的第四数据。 接收机在上行链路子帧或下行链路子帧内从无线通信移动站装置接收用于在本装置中切换发送/接收的分配信息。 选择器根据接收机接收到的分配信息切换上行链路子帧内的第一数据和第四数据,或者选择器根据接收机接收到的分配信息在下行子帧内切换第二数据和第三数据 。

    Wireless transmission apparatus and modulation scheme selection method
    67.
    发明授权
    Wireless transmission apparatus and modulation scheme selection method 有权
    无线传输装置和调制方案选择方法

    公开(公告)号:US08140037B2

    公开(公告)日:2012-03-20

    申请号:US12938076

    申请日:2010-11-02

    Abstract: A wireless transmission apparatus that can accurately select an optimal modulation scheme on a per block basis in a multi-carrier communication system in which block division of subcarriers and adaptive modulation are performed. In this wireless transmission apparatus, a propagation path characteristics acquisition section acquires the average SNR and SNR variance for each block, which are estimated by a wireless reception apparatus, using received signals inputted from a reception RF section and outputs these to an assignment section. The assignment section selects a modulation scheme for each block based on the average SNR and SNR variance of each block inputted from the propagation path characteristics acquisition section and modulation sections modulate multi-carrier signals included in each block, with the modulation scheme for each block selected by the assignment section.

    Abstract translation: 一种无线发送装置,其能够在进行子载波和自适应调制的块分割的多载波通信系统中,以每块为基准,精确地选择最优调制方式。 在该无线发送装置中,传播路径特性取得部使用从接收RF部输入的接收信号,获取由无线接收装置估计的每个块的平均SNR和SNR方差,并将其输出到分配部。 分配部根据从传播路径特性获取部输入的每个块的平均SNR和SNR方差来选择每个块的调制方式,并且调制部分调制包括在每个块中的多载波信号,并选择每个块的调制方案 由作业部分。

    Radio communication base station apparatus and radio communication method
    68.
    发明授权
    Radio communication base station apparatus and radio communication method 有权
    无线通信基站装置及无线通信方式

    公开(公告)号:US08134998B2

    公开(公告)日:2012-03-13

    申请号:US13114696

    申请日:2011-05-24

    Abstract: Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit (102) for modulating SCH data after being encoded; a sub carrier setting unit (105) for setting one of the sub carriers to a sub carrier (SCH sub carrier) constituting the OFDM symbol for SCH data transmission; and an IFFT unit (106) for mapping the SCH data to the sub carrier set by the sub carrier setting unit (105) among the sub carriers and performing IFFT to generate an OFDM symbol. The sub carrier setting unit (105) sets one of the sub carriers which has a frequency of a common multiple between the sub carrier interval and the cell search interval as an SCH sub carrier.

    Abstract translation: 提供了一种能够在可应用诸如OFDM方法的多载波通信方法的可扩展带宽通信系统中对具有不同的可通信频带宽度的所有移动台进行小区搜索的基站。 基站包括:调制单元(102),用于在编码之后调制SCH数据; 用于将子载波中的一个设置为构成用于SCH数据传输的OFDM符号的子载波(SCH子载波)的子载波设置单元(105) 以及IFFT单元(106),用于将SCH数据映射到子载波中由子载波设置单元(105)设置的副载波,并执行IFFT以生成OFDM符号。 子载波设置单元(105)将子载波间隔和小区搜索间隔之间具有公共倍数的子载波之一设置为SCH子载波。

    RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS AND PREAMBLE SEQUENCE ALLOCATING METHOD
    70.
    发明申请
    RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS AND PREAMBLE SEQUENCE ALLOCATING METHOD 有权
    无线电发射装置,无线电接收装置和前导序列分配方法

    公开(公告)号:US20120051301A1

    公开(公告)日:2012-03-01

    申请号:US13203950

    申请日:2010-03-01

    Abstract: A radio transmitting apparatus wherein even if a preamble sequence transmitted via any one of the antennas of the radio transmitting apparatus is detected, the order of the space diversity can be determined with reliability and data signals can be normally decoded. In this apparatus, a deciding unit (101) decides preamble sequences the number of which is equal to the order of the space diversity and further decides transmission block intervals the number of which is equal to or greater than the order of the space diversity. An allocating unit (102) sequentially allocates the preamble sequences, the number of which is equal to the order of the space diversity, to the respective antennas, the number of which is equal to the order of the space diversity, within the respective transmission block intervals. The allocating unit (102) allocates different ones of the preamble sequences to the respective antennas at the respective same transmission timings that are within the respective transmission block intervals.

    Abstract translation: 一种无线发送装置,其中即使检测到通过无线发送装置的任一天线发送的前同步码序列,也可以利用可靠性确定空间分集的顺序,并且可以正常解码数据信号。 在该装置中,决定单元(101)确定其数量等于空间分集的顺序的前导序列,并且进一步确定数量等于或大于空间分集的顺序的传输块间隔。 分配单元(102)将数量等于空间分集的顺序的前导序列顺序分配给各个天线的数量等于各个发送块内的空间分集的次数 间隔 分配单元(102)以相应的发送块间隔内的各个相同的发送定时将不同的前导码序列分配给各个天线。

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