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    • 21. 发明授权
    • Mobile station apparatus, communication method, and base station apparatus
    • 移动站装置,通信方法以及基站装置
    • US08155227B2
    • 2012-04-10
    • US13160872
    • 2011-06-15
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • Jinsong DuanMitsuru UesugiKeisuke EbikoKeiji TakakusakiAtsushi Sumasu
    • H04K1/10
    • H04L1/0026H04L1/0003H04L1/0009H04L1/0029H04L1/003H04L5/0007H04L5/0046H04L5/006H04L5/0091H04L25/022
    • A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
    • 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量,而不降低反馈信息的准确性。 在所述移动台装置(100)中,根据已知信号,将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元(135) 控制信息发送控制部(160)将基于各块的通信质量的反馈信息(CQI信息)发送到基站装置(200); 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部(155)根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息(CQI信息)。
    • 23. 发明授权
    • Noise power estimation method and noise power estimation device
    • 噪声功率估计方法和噪声功率估计装置
    • US07532864B2
    • 2009-05-12
    • US10524213
    • 2004-02-16
    • Masaru FukuokaAtsushi SumasuSadayuki AbetaNoriyuki MaedaHiroyuki Atarashi
    • Masaru FukuokaAtsushi SumasuSadayuki AbetaNoriyuki MaedaHiroyuki Atarashi
    • H04B17/00
    • H04B1/7097H04B17/345H04B2201/70701H04L1/20
    • A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
    • 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加,并由平方装置25平方。累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置,即使相邻副载波之间的相关性通过频率选择性衰落变得较低,也可以提高估计噪声功率的精度。
    • 24. 发明申请
    • BASE STATION APPARATUS AND RESOURCE ASSIGNING METHOD
    • 基站设备和资源分配方法
    • US20090010211A1
    • 2009-01-08
    • US11815010
    • 2006-01-27
    • Atsushi SumasuHiroki HagaMasayuki Hoshino
    • Atsushi SumasuHiroki HagaMasayuki Hoshino
    • H04Q7/00
    • H04L1/0009H04L1/0003H04L1/0016H04L1/16H04W28/18
    • A base station apparatus that selects an optimum MCS level so as to improve system throughput. In this base station apparatus, a terminal rank detecting part (108) detects terminal rank information included in received data. An MCS table selecting part (109) selects, based on the rank of a communication terminal apparatus, an MCS table to be used for a scheduling. A scheduling part (151) stores a plurality of MCS tables indicative of a range of SINRs to which MSC levels are assigned; assigns, based on an MCS table selected by the MCS table selecting part (109) and also based on line quality information, a communication terminal apparatus to which the data is to be transmitted; and decides a modulation scheme and an encoding rate for the data to be transmitted to the assigned communication terminal apparatus.
    • 一种选择最佳MCS级别以提高系统吞吐量的基站装置。 在该基站装置中,终端秩检测部(108)检测包含在接收数据中的终端秩信息。 MCS表选择部(109)根据通信终端装置的等级选择要用于调度的MCS表。 调度部分(151)存储指示分配MSC级别的SINR范围的多个MCS表; 基于由MCS表选择部(109)选择的MCS表,并且还基于线路质量信息,分配要发送数据的通信终端装置; 并且确定要发送到所分配的通信终端装置的数据的调制方案和编码率。
    • 25. 发明申请
    • Transmission device and gain control method
    • 传输装置和增益控制方法
    • US20060285582A1
    • 2006-12-21
    • US10579062
    • 2004-11-12
    • Atsushi SumasuShoji MiyamotoSadaki FutagiKeiji TakakusakiTakao Nihei
    • Atsushi SumasuShoji MiyamotoSadaki FutagiKeiji TakakusakiTakao Nihei
    • H04L5/16
    • H04W52/52H03G3/3036H04B2001/0416
    • An apparatus that can lower the possibility of failing reception modulation in communication where data is transmitted with and without directivity and prevent deterioration of transmission efficiency caused by retransmission. With this apparatus, a gain control signal multiplex section (203) time division multiplexes a directional transmission signal and a gain control signal. A transmission level control section (204) controls the transmission power level of a gain control signal so that the transmission power level of the gain control signal is smaller than the transmission power level of a directional transmission signal and the received power level of the gain control signal is larger than a received power level of a nondirectional transmission signal at the receiving side, and controls the transmission power level of a directional transmission signal so that the received power level of the directional transmission signal is larger than the received power level of a nondirectional transmission signal and the received power level of a gain control signal at the receiving side.
    • 能够降低在具有指示性和无方向性的情况下传送数据的通信中的接收调制失败的可能性的装置,并且防止由重传引起的传输效率的恶化。 利用该装置,增益控制信号复用部分(203)时分复用定向传输信号和增益控制信号。 发送电平控制部(204)控制增益控制信号的发送功率电平,使得增益控制信号的发送功率电平小于定向发送信号的发送功率电平和增益控制的接收功率电平 信号大于接收侧的非定向传输信号的接收功率电平,并且控制定向发射信号的发射功率电平,使得定向传输信号的接收功率电平大于非定向传输信号的接收功率电平 发送信号和接收侧的增益控制信号的接收功率电平。
    • 26. 发明申请
    • Noise power estimation method and noise power estimation device
    • 噪声功率估计方法和噪声功率估计装置
    • US20060154608A1
    • 2006-07-13
    • US10524213
    • 2004-02-16
    • Masaru FukuokaAtsushi SumasuSadayuki AbetaNoriyuki MaedaHiroyuki Atarashi
    • Masaru FukuokaAtsushi SumasuSadayuki AbetaNoriyuki MaedaHiroyuki Atarashi
    • H04B17/00
    • H04B1/7097H04B17/345H04B2201/70701H04L1/20
    • A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
    • 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加,并由平方装置25平方。 累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置,即使相邻副载波之间的相关性通过频率选择性衰落变得较低,也可以提高估计噪声功率的精度。